diff options
Diffstat (limited to 'tools')
58 files changed, 2753 insertions, 234 deletions
diff --git a/tools/arch/csky/include/uapi/asm/perf_regs.h b/tools/arch/csky/include/uapi/asm/perf_regs.h new file mode 100644 index 000000000000..ee323d818592 --- /dev/null +++ b/tools/arch/csky/include/uapi/asm/perf_regs.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd. + +#ifndef _ASM_CSKY_PERF_REGS_H +#define _ASM_CSKY_PERF_REGS_H + +/* Index of struct pt_regs */ +enum perf_event_csky_regs { + PERF_REG_CSKY_TLS, + PERF_REG_CSKY_LR, + PERF_REG_CSKY_PC, + PERF_REG_CSKY_SR, + PERF_REG_CSKY_SP, + PERF_REG_CSKY_ORIG_A0, + PERF_REG_CSKY_A0, + PERF_REG_CSKY_A1, + PERF_REG_CSKY_A2, + PERF_REG_CSKY_A3, + PERF_REG_CSKY_REGS0, + PERF_REG_CSKY_REGS1, + PERF_REG_CSKY_REGS2, + PERF_REG_CSKY_REGS3, + PERF_REG_CSKY_REGS4, + PERF_REG_CSKY_REGS5, + PERF_REG_CSKY_REGS6, + PERF_REG_CSKY_REGS7, + PERF_REG_CSKY_REGS8, + PERF_REG_CSKY_REGS9, +#if defined(__CSKYABIV2__) + PERF_REG_CSKY_EXREGS0, + PERF_REG_CSKY_EXREGS1, + PERF_REG_CSKY_EXREGS2, + PERF_REG_CSKY_EXREGS3, + PERF_REG_CSKY_EXREGS4, + PERF_REG_CSKY_EXREGS5, + PERF_REG_CSKY_EXREGS6, + PERF_REG_CSKY_EXREGS7, + PERF_REG_CSKY_EXREGS8, + PERF_REG_CSKY_EXREGS9, + PERF_REG_CSKY_EXREGS10, + PERF_REG_CSKY_EXREGS11, + PERF_REG_CSKY_EXREGS12, + PERF_REG_CSKY_EXREGS13, + PERF_REG_CSKY_EXREGS14, + PERF_REG_CSKY_HI, + PERF_REG_CSKY_LO, + PERF_REG_CSKY_DCSR, +#endif + PERF_REG_CSKY_MAX, +}; +#endif /* _ASM_CSKY_PERF_REGS_H */ diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h index 1708e9f9f8aa..2551e9b71167 100644 --- a/tools/include/nolibc/nolibc.h +++ b/tools/include/nolibc/nolibc.h @@ -1243,6 +1243,200 @@ struct sys_stat_struct { long st_pad4[14]; }; +#elif defined(__riscv) + +#if __riscv_xlen == 64 +#define PTRLOG "3" +#define SZREG "8" +#elif __riscv_xlen == 32 +#define PTRLOG "2" +#define SZREG "4" +#endif + +/* Syscalls for RISCV : + * - stack is 16-byte aligned + * - syscall number is passed in a7 + * - arguments are in a0, a1, a2, a3, a4, a5 + * - the system call is performed by calling ecall + * - syscall return comes in a0 + * - the arguments are cast to long and assigned into the target + * registers which are then simply passed as registers to the asm code, + * so that we don't have to experience issues with register constraints. + */ + +#define my_syscall0(num) \ +({ \ + register long _num asm("a7") = (num); \ + register long _arg1 asm("a0"); \ + \ + asm volatile ( \ + "ecall\n\t" \ + : "=r"(_arg1) \ + : "r"(_num) \ + : "memory", "cc" \ + ); \ + _arg1; \ +}) + +#define my_syscall1(num, arg1) \ +({ \ + register long _num asm("a7") = (num); \ + register long _arg1 asm("a0") = (long)(arg1); \ + \ + asm volatile ( \ + "ecall\n" \ + : "+r"(_arg1) \ + : "r"(_num) \ + : "memory", "cc" \ + ); \ + _arg1; \ +}) + +#define my_syscall2(num, arg1, arg2) \ +({ \ + register long _num asm("a7") = (num); \ + register long _arg1 asm("a0") = (long)(arg1); \ + register long _arg2 asm("a1") = (long)(arg2); \ + \ + asm volatile ( \ + "ecall\n" \ + : "+r"(_arg1) \ + : "r"(_arg2), \ + "r"(_num) \ + : "memory", "cc" \ + ); \ + _arg1; \ +}) + +#define my_syscall3(num, arg1, arg2, arg3) \ +({ \ + register long _num asm("a7") = (num); \ + register long _arg1 asm("a0") = (long)(arg1); \ + register long _arg2 asm("a1") = (long)(arg2); \ + register long _arg3 asm("a2") = (long)(arg3); \ + \ + asm volatile ( \ + "ecall\n\t" \ + : "+r"(_arg1) \ + : "r"(_arg2), "r"(_arg3), \ + "r"(_num) \ + : "memory", "cc" \ + ); \ + _arg1; \ +}) + +#define my_syscall4(num, arg1, arg2, arg3, arg4) \ +({ \ + register long _num asm("a7") = (num); \ + register long _arg1 asm("a0") = (long)(arg1); \ + register long _arg2 asm("a1") = (long)(arg2); \ + register long _arg3 asm("a2") = (long)(arg3); \ + register long _arg4 asm("a3") = (long)(arg4); \ + \ + asm volatile ( \ + "ecall\n" \ + : "+r"(_arg1) \ + : "r"(_arg2), "r"(_arg3), "r"(_arg4), \ + "r"(_num) \ + : "memory", "cc" \ + ); \ + _arg1; \ +}) + +#define my_syscall5(num, arg1, arg2, arg3, arg4, arg5) \ +({ \ + register long _num asm("a7") = (num); \ + register long _arg1 asm("a0") = (long)(arg1); \ + register long _arg2 asm("a1") = (long)(arg2); \ + register long _arg3 asm("a2") = (long)(arg3); \ + register long _arg4 asm("a3") = (long)(arg4); \ + register long _arg5 asm("a4") = (long)(arg5); \ + \ + asm volatile ( \ + "ecall\n" \ + : "+r"(_arg1) \ + : "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \ + "r"(_num) \ + : "memory", "cc" \ + ); \ + _arg1; \ +}) + +#define my_syscall6(num, arg1, arg2, arg3, arg4, arg5, arg6) \ +({ \ + register long _num asm("a7") = (num); \ + register long _arg1 asm("a0") = (long)(arg1); \ + register long _arg2 asm("a1") = (long)(arg2); \ + register long _arg3 asm("a2") = (long)(arg3); \ + register long _arg4 asm("a3") = (long)(arg4); \ + register long _arg5 asm("a4") = (long)(arg5); \ + register long _arg6 asm("a5") = (long)(arg6); \ + \ + asm volatile ( \ + "ecall\n" \ + : "+r"(_arg1) \ + : "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), "r"(_arg6), \ + "r"(_num) \ + : "memory", "cc" \ + ); \ + _arg1; \ +}) + +/* startup code */ +asm(".section .text\n" + ".global _start\n" + "_start:\n" + ".option push\n" + ".option norelax\n" + "lla gp, __global_pointer$\n" + ".option pop\n" + "ld a0, 0(sp)\n" // argc (a0) was in the stack + "add a1, sp, "SZREG"\n" // argv (a1) = sp + "slli a2, a0, "PTRLOG"\n" // envp (a2) = SZREG*argc ... + "add a2, a2, "SZREG"\n" // + SZREG (skip null) + "add a2,a2,a1\n" // + argv + "andi sp,a1,-16\n" // sp must be 16-byte aligned + "call main\n" // main() returns the status code, we'll exit with it. + "andi a0, a0, 0xff\n" // limit exit code to 8 bits + "li a7, 93\n" // NR_exit == 93 + "ecall\n" + ""); + +/* fcntl / open */ +#define O_RDONLY 0 +#define O_WRONLY 1 +#define O_RDWR 2 +#define O_CREAT 0x100 +#define O_EXCL 0x200 +#define O_NOCTTY 0x400 +#define O_TRUNC 0x1000 +#define O_APPEND 0x2000 +#define O_NONBLOCK 0x4000 +#define O_DIRECTORY 0x200000 + +struct sys_stat_struct { + unsigned long st_dev; /* Device. */ + unsigned long st_ino; /* File serial number. */ + unsigned int st_mode; /* File mode. */ + unsigned int st_nlink; /* Link count. */ + unsigned int st_uid; /* User ID of the file's owner. */ + unsigned int st_gid; /* Group ID of the file's group. */ + unsigned long st_rdev; /* Device number, if device. */ + unsigned long __pad1; + long st_size; /* Size of file, in bytes. */ + int st_blksize; /* Optimal block size for I/O. */ + int __pad2; + long st_blocks; /* Number 512-byte blocks allocated. */ + long st_atime; /* Time of last access. */ + unsigned long st_atime_nsec; + long st_mtime; /* Time of last modification. */ + unsigned long st_mtime_nsec; + long st_ctime; /* Time of last status change. */ + unsigned long st_ctime_nsec; + unsigned int __unused4; + unsigned int __unused5; +}; + #endif diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index 72336bac7573..63e0cf66f01a 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -629,7 +629,7 @@ union bpf_attr { * **BPF_F_INVALIDATE_HASH** (set *skb*\ **->hash**, *skb*\ * **->swhash** and *skb*\ **->l4hash** to 0). * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -654,7 +654,7 @@ union bpf_attr { * flexibility and can handle sizes larger than 2 or 4 for the * checksum to update. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -686,7 +686,7 @@ union bpf_attr { * flexibility and can handle sizes larger than 2 or 4 for the * checksum to update. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -741,7 +741,7 @@ union bpf_attr { * efficient, but it is handled through an action code where the * redirection happens only after the eBPF program has returned. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -806,7 +806,7 @@ union bpf_attr { * **ETH_P_8021Q** and **ETH_P_8021AD**, it is considered to * be **ETH_P_8021Q**. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -818,7 +818,7 @@ union bpf_attr { * Description * Pop a VLAN header from the packet associated to *skb*. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -1168,7 +1168,7 @@ union bpf_attr { * All values for *flags* are reserved for future usage, and must * be left at zero. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -1281,7 +1281,7 @@ union bpf_attr { * implicitly linearizes, unclones and drops offloads from the * *skb*. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -1317,7 +1317,7 @@ union bpf_attr { * **bpf_skb_pull_data()** to effectively unclone the *skb* from * the very beginning in case it is indeed cloned. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -1369,7 +1369,7 @@ union bpf_attr { * All values for *flags* are reserved for future usage, and must * be left at zero. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -1384,7 +1384,7 @@ union bpf_attr { * can be used to prepare the packet for pushing or popping * headers. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -1518,20 +1518,20 @@ union bpf_attr { * * **BPF_F_ADJ_ROOM_FIXED_GSO**: Do not adjust gso_size. * Adjusting mss in this way is not allowed for datagrams. * - * * **BPF_F_ADJ_ROOM_ENCAP_L3_IPV4 **: - * * **BPF_F_ADJ_ROOM_ENCAP_L3_IPV6 **: + * * **BPF_F_ADJ_ROOM_ENCAP_L3_IPV4**, + * **BPF_F_ADJ_ROOM_ENCAP_L3_IPV6**: * Any new space is reserved to hold a tunnel header. * Configure skb offsets and other fields accordingly. * - * * **BPF_F_ADJ_ROOM_ENCAP_L4_GRE **: - * * **BPF_F_ADJ_ROOM_ENCAP_L4_UDP **: + * * **BPF_F_ADJ_ROOM_ENCAP_L4_GRE**, + * **BPF_F_ADJ_ROOM_ENCAP_L4_UDP**: * Use with ENCAP_L3 flags to further specify the tunnel type. * - * * **BPF_F_ADJ_ROOM_ENCAP_L2(len) **: + * * **BPF_F_ADJ_ROOM_ENCAP_L2**\ (*len*): * Use with ENCAP_L3/L4 flags to further specify the tunnel - * type; **len** is the length of the inner MAC header. + * type; *len* is the length of the inner MAC header. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -1610,7 +1610,7 @@ union bpf_attr { * more flexibility as the user is free to store whatever meta * data they need. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -1852,7 +1852,7 @@ union bpf_attr { * copied if necessary (i.e. if data was not linear and if start * and end pointers do not point to the same chunk). * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -1886,7 +1886,7 @@ union bpf_attr { * only possible to shrink the packet as of this writing, * therefore *delta* must be a negative integer. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -2061,18 +2061,18 @@ union bpf_attr { * **BPF_LWT_ENCAP_IP** * IP encapsulation (GRE/GUE/IPIP/etc). The outer header * must be IPv4 or IPv6, followed by zero or more - * additional headers, up to LWT_BPF_MAX_HEADROOM total - * bytes in all prepended headers. Please note that - * if skb_is_gso(skb) is true, no more than two headers - * can be prepended, and the inner header, if present, - * should be either GRE or UDP/GUE. - * - * BPF_LWT_ENCAP_SEG6*** types can be called by bpf programs of - * type BPF_PROG_TYPE_LWT_IN; BPF_LWT_ENCAP_IP type can be called - * by bpf programs of types BPF_PROG_TYPE_LWT_IN and - * BPF_PROG_TYPE_LWT_XMIT. - * - * A call to this helper is susceptible to change the underlaying + * additional headers, up to **LWT_BPF_MAX_HEADROOM** + * total bytes in all prepended headers. Please note that + * if **skb_is_gso**\ (*skb*) is true, no more than two + * headers can be prepended, and the inner header, if + * present, should be either GRE or UDP/GUE. + * + * **BPF_LWT_ENCAP_SEG6**\ \* types can be called by BPF programs + * of type **BPF_PROG_TYPE_LWT_IN**; **BPF_LWT_ENCAP_IP** type can + * be called by bpf programs of types **BPF_PROG_TYPE_LWT_IN** and + * **BPF_PROG_TYPE_LWT_XMIT**. + * + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -2087,7 +2087,7 @@ union bpf_attr { * inside the outermost IPv6 Segment Routing Header can be * modified through this helper. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -2103,7 +2103,7 @@ union bpf_attr { * after the segments are accepted. *delta* can be as well * positive (growing) as negative (shrinking). * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -2126,13 +2126,13 @@ union bpf_attr { * Type of *param*: **int**. * **SEG6_LOCAL_ACTION_END_B6** * End.B6 action: Endpoint bound to an SRv6 policy. - * Type of param: **struct ipv6_sr_hdr**. + * Type of *param*: **struct ipv6_sr_hdr**. * **SEG6_LOCAL_ACTION_END_B6_ENCAP** * End.B6.Encap action: Endpoint bound to an SRv6 * encapsulation policy. - * Type of param: **struct ipv6_sr_hdr**. + * Type of *param*: **struct ipv6_sr_hdr**. * - * A call to this helper is susceptible to change the underlaying + * A call to this helper is susceptible to change the underlying * packet buffer. Therefore, at load time, all checks on pointers * previously done by the verifier are invalidated and must be * performed again, if the helper is used in combination with @@ -2285,7 +2285,8 @@ union bpf_attr { * Return * Pointer to **struct bpf_sock**, or **NULL** in case of failure. * For sockets with reuseport option, the **struct bpf_sock** - * result is from **reuse->socks**\ [] using the hash of the tuple. + * result is from *reuse*\ **->socks**\ [] using the hash of the + * tuple. * * struct bpf_sock *bpf_sk_lookup_udp(void *ctx, struct bpf_sock_tuple *tuple, u32 tuple_size, u64 netns, u64 flags) * Description @@ -2321,7 +2322,8 @@ union bpf_attr { * Return * Pointer to **struct bpf_sock**, or **NULL** in case of failure. * For sockets with reuseport option, the **struct bpf_sock** - * result is from **reuse->socks**\ [] using the hash of the tuple. + * result is from *reuse*\ **->socks**\ [] using the hash of the + * tuple. * * int bpf_sk_release(struct bpf_sock *sock) * Description @@ -2490,31 +2492,34 @@ union bpf_attr { * network namespace *netns*. The return value must be checked, * and if non-**NULL**, released via **bpf_sk_release**\ (). * - * This function is identical to bpf_sk_lookup_tcp, except that it - * also returns timewait or request sockets. Use bpf_sk_fullsock - * or bpf_tcp_socket to access the full structure. + * This function is identical to **bpf_sk_lookup_tcp**\ (), except + * that it also returns timewait or request sockets. Use + * **bpf_sk_fullsock**\ () or **bpf_tcp_sock**\ () to access the + * full structure. * * This helper is available only if the kernel was compiled with * **CONFIG_NET** configuration option. * Return * Pointer to **struct bpf_sock**, or **NULL** in case of failure. * For sockets with reuseport option, the **struct bpf_sock** - * result is from **reuse->socks**\ [] using the hash of the tuple. + * result is from *reuse*\ **->socks**\ [] using the hash of the + * tuple. * * int bpf_tcp_check_syncookie(struct bpf_sock *sk, void *iph, u32 iph_len, struct tcphdr *th, u32 th_len) * Description - * Check whether iph and th contain a valid SYN cookie ACK for - * the listening socket in sk. + * Check whether *iph* and *th* contain a valid SYN cookie ACK for + * the listening socket in *sk*. * - * iph points to the start of the IPv4 or IPv6 header, while - * iph_len contains sizeof(struct iphdr) or sizeof(struct ip6hdr). + * *iph* points to the start of the IPv4 or IPv6 header, while + * *iph_len* contains **sizeof**\ (**struct iphdr**) or + * **sizeof**\ (**struct ip6hdr**). * - * th points to the start of the TCP header, while th_len contains - * sizeof(struct tcphdr). + * *th* points to the start of the TCP header, while *th_len* + * contains **sizeof**\ (**struct tcphdr**). * * Return - * 0 if iph and th are a valid SYN cookie ACK, or a negative error - * otherwise. + * 0 if *iph* and *th* are a valid SYN cookie ACK, or a negative + * error otherwise. * * int bpf_sysctl_get_name(struct bpf_sysctl *ctx, char *buf, size_t buf_len, u64 flags) * Description @@ -2592,17 +2597,17 @@ union bpf_attr { * and save the result in *res*. * * The string may begin with an arbitrary amount of white space - * (as determined by isspace(3)) followed by a single optional '-' - * sign. + * (as determined by **isspace**\ (3)) followed by a single + * optional '**-**' sign. * * Five least significant bits of *flags* encode base, other bits * are currently unused. * * Base must be either 8, 10, 16 or 0 to detect it automatically - * similar to user space strtol(3). + * similar to user space **strtol**\ (3). * Return * Number of characters consumed on success. Must be positive but - * no more than buf_len. + * no more than *buf_len*. * * **-EINVAL** if no valid digits were found or unsupported base * was provided. @@ -2616,16 +2621,16 @@ union bpf_attr { * given base and save the result in *res*. * * The string may begin with an arbitrary amount of white space - * (as determined by isspace(3)). + * (as determined by **isspace**\ (3)). * * Five least significant bits of *flags* encode base, other bits * are currently unused. * * Base must be either 8, 10, 16 or 0 to detect it automatically - * similar to user space strtoul(3). + * similar to user space **strtoul**\ (3). * Return * Number of characters consumed on success. Must be positive but - * no more than buf_len. + * no more than *buf_len*. * * **-EINVAL** if no valid digits were found or unsupported base * was provided. @@ -2634,26 +2639,26 @@ union bpf_attr { * * void *bpf_sk_storage_get(struct bpf_map *map, struct bpf_sock *sk, void *value, u64 flags) * Description - * Get a bpf-local-storage from a sk. + * Get a bpf-local-storage from a *sk*. * * Logically, it could be thought of getting the value from * a *map* with *sk* as the **key**. From this * perspective, the usage is not much different from - * **bpf_map_lookup_elem(map, &sk)** except this - * helper enforces the key must be a **bpf_fullsock()** - * and the map must be a BPF_MAP_TYPE_SK_STORAGE also. + * **bpf_map_lookup_elem**\ (*map*, **&**\ *sk*) except this + * helper enforces the key must be a full socket and the map must + * be a **BPF_MAP_TYPE_SK_STORAGE** also. * * Underneath, the value is stored locally at *sk* instead of - * the map. The *map* is used as the bpf-local-storage **type**. - * The bpf-local-storage **type** (i.e. the *map*) is searched - * against all bpf-local-storages residing at sk. + * the *map*. The *map* is used as the bpf-local-storage + * "type". The bpf-local-storage "type" (i.e. the *map*) is + * searched against all bpf-local-storages residing at *sk*. * - * An optional *flags* (BPF_SK_STORAGE_GET_F_CREATE) can be + * An optional *flags* (**BPF_SK_STORAGE_GET_F_CREATE**) can be * used such that a new bpf-local-storage will be * created if one does not exist. *value* can be used - * together with BPF_SK_STORAGE_GET_F_CREATE to specify + * together with **BPF_SK_STORAGE_GET_F_CREATE** to specify * the initial value of a bpf-local-storage. If *value* is - * NULL, the new bpf-local-storage will be zero initialized. + * **NULL**, the new bpf-local-storage will be zero initialized. * Return * A bpf-local-storage pointer is returned on success. * @@ -2662,7 +2667,7 @@ union bpf_attr { * * int bpf_sk_storage_delete(struct bpf_map *map, struct bpf_sock *sk) * Description - * Delete a bpf-local-storage from a sk. + * Delete a bpf-local-storage from a *sk*. * Return * 0 on success. * diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 11a65db4b93f..7e3b79d7c25f 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -44,6 +44,7 @@ #include "btf.h" #include "str_error.h" #include "libbpf_util.h" +#include "libbpf_internal.h" #ifndef EM_BPF #define EM_BPF 247 @@ -128,6 +129,10 @@ struct bpf_capabilities { __u32 name:1; /* v5.2: kernel support for global data sections. */ __u32 global_data:1; + /* BTF_KIND_FUNC and BTF_KIND_FUNC_PROTO support */ + __u32 btf_func:1; + /* BTF_KIND_VAR and BTF_KIND_DATASEC support */ + __u32 btf_datasec:1; }; /* @@ -1021,6 +1026,74 @@ static bool section_have_execinstr(struct bpf_object *obj, int idx) return false; } +static void bpf_object__sanitize_btf(struct bpf_object *obj) +{ + bool has_datasec = obj->caps.btf_datasec; + bool has_func = obj->caps.btf_func; + struct btf *btf = obj->btf; + struct btf_type *t; + int i, j, vlen; + __u16 kind; + + if (!obj->btf || (has_func && has_datasec)) + return; + + for (i = 1; i <= btf__get_nr_types(btf); i++) { + t = (struct btf_type *)btf__type_by_id(btf, i); + kind = BTF_INFO_KIND(t->info); + + if (!has_datasec && kind == BTF_KIND_VAR) { + /* replace VAR with INT */ + t->info = BTF_INFO_ENC(BTF_KIND_INT, 0, 0); + t->size = sizeof(int); + *(int *)(t+1) = BTF_INT_ENC(0, 0, 32); + } else if (!has_datasec && kind == BTF_KIND_DATASEC) { + /* replace DATASEC with STRUCT */ + struct btf_var_secinfo *v = (void *)(t + 1); + struct btf_member *m = (void *)(t + 1); + struct btf_type *vt; + char *name; + + name = (char *)btf__name_by_offset(btf, t->name_off); + while (*name) { + if (*name == '.') + *name = '_'; + name++; + } + + vlen = BTF_INFO_VLEN(t->info); + t->info = BTF_INFO_ENC(BTF_KIND_STRUCT, 0, vlen); + for (j = 0; j < vlen; j++, v++, m++) { + /* order of field assignments is important */ + m->offset = v->offset * 8; + m->type = v->type; + /* preserve variable name as member name */ + vt = (void *)btf__type_by_id(btf, v->type); + m->name_off = vt->name_off; + } + } else if (!has_func && kind == BTF_KIND_FUNC_PROTO) { + /* replace FUNC_PROTO with ENUM */ + vlen = BTF_INFO_VLEN(t->info); + t->info = BTF_INFO_ENC(BTF_KIND_ENUM, 0, vlen); + t->size = sizeof(__u32); /* kernel enforced */ + } else if (!has_func && kind == BTF_KIND_FUNC) { + /* replace FUNC with TYPEDEF */ + t->info = BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0); + } + } +} + +static void bpf_object__sanitize_btf_ext(struct bpf_object *obj) +{ + if (!obj->btf_ext) + return; + + if (!obj->caps.btf_func) { + btf_ext__free(obj->btf_ext); + obj->btf_ext = NULL; + } +} + static int bpf_object__elf_collect(struct bpf_object *obj, int flags) { Elf *elf = obj->efile.elf; @@ -1164,8 +1237,10 @@ static int bpf_object__elf_collect(struct bpf_object *obj, int flags) obj->btf = NULL; } else { err = btf__finalize_data(obj, obj->btf); - if (!err) + if (!err) { + bpf_object__sanitize_btf(obj); err = btf__load(obj->btf); + } if (err) { pr_warning("Error finalizing and loading %s into kernel: %d. Ignored and continue.\n", BTF_ELF_SEC, err); @@ -1187,6 +1262,8 @@ static int bpf_object__elf_collect(struct bpf_object *obj, int flags) BTF_EXT_ELF_SEC, PTR_ERR(obj->btf_ext)); obj->btf_ext = NULL; + } else { + bpf_object__sanitize_btf_ext(obj); } } } @@ -1556,12 +1633,63 @@ bpf_object__probe_global_data(struct bpf_object *obj) return 0; } +static int bpf_object__probe_btf_func(struct bpf_object *obj) +{ + const char strs[] = "\0int\0x\0a"; + /* void x(int a) {} */ + __u32 types[] = { + /* int */ + BTF_TYPE_INT_ENC(1, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + /* FUNC_PROTO */ /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, 1), 0), + BTF_PARAM_ENC(7, 1), + /* FUNC x */ /* [3] */ + BTF_TYPE_ENC(5, BTF_INFO_ENC(BTF_KIND_FUNC, 0, 0), 2), + }; + int res; + + res = libbpf__probe_raw_btf((char *)types, sizeof(types), + strs, sizeof(strs)); + if (res < 0) + return res; + if (res > 0) + obj->caps.btf_func = 1; + return 0; +} + +static int bpf_object__probe_btf_datasec(struct bpf_object *obj) +{ + const char strs[] = "\0x\0.data"; + /* static int a; */ + __u32 types[] = { + /* int */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + /* VAR x */ /* [2] */ + BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), 1), + BTF_VAR_STATIC, + /* DATASEC val */ /* [3] */ + BTF_TYPE_ENC(3, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4), + BTF_VAR_SECINFO_ENC(2, 0, 4), + }; + int res; + + res = libbpf__probe_raw_btf((char *)types, sizeof(types), + strs, sizeof(strs)); + if (res < 0) + return res; + if (res > 0) + obj->caps.btf_datasec = 1; + return 0; +} + static int bpf_object__probe_caps(struct bpf_object *obj) { int (*probe_fn[])(struct bpf_object *obj) = { bpf_object__probe_name, bpf_object__probe_global_data, + bpf_object__probe_btf_func, + bpf_object__probe_btf_datasec, }; int i, ret; diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h new file mode 100644 index 000000000000..789e435b5900 --- /dev/null +++ b/tools/lib/bpf/libbpf_internal.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ + +/* + * Internal libbpf helpers. + * + * Copyright (c) 2019 Facebook + */ + +#ifndef __LIBBPF_LIBBPF_INTERNAL_H +#define __LIBBPF_LIBBPF_INTERNAL_H + +#define BTF_INFO_ENC(kind, kind_flag, vlen) \ + ((!!(kind_flag) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN)) +#define BTF_TYPE_ENC(name, info, size_or_type) (name), (info), (size_or_type) +#define BTF_INT_ENC(encoding, bits_offset, nr_bits) \ + ((encoding) << 24 | (bits_offset) << 16 | (nr_bits)) +#define BTF_TYPE_INT_ENC(name, encoding, bits_offset, bits, sz) \ + BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), sz), \ + BTF_INT_ENC(encoding, bits_offset, bits) +#define BTF_MEMBER_ENC(name, type, bits_offset) (name), (type), (bits_offset) +#define BTF_PARAM_ENC(name, type) (name), (type) +#define BTF_VAR_SECINFO_ENC(type, offset, size) (type), (offset), (size) + +int libbpf__probe_raw_btf(const char *raw_types, size_t types_len, + const char *str_sec, size_t str_len); + +#endif /* __LIBBPF_LIBBPF_INTERNAL_H */ diff --git a/tools/lib/bpf/libbpf_probes.c b/tools/lib/bpf/libbpf_probes.c index a2c64a9ce1a6..5e2aa83f637a 100644 --- a/tools/lib/bpf/libbpf_probes.c +++ b/tools/lib/bpf/libbpf_probes.c @@ -15,6 +15,7 @@ #include "bpf.h" #include "libbpf.h" +#include "libbpf_internal.h" static bool grep(const char *buffer, const char *pattern) { @@ -132,21 +133,43 @@ bool bpf_probe_prog_type(enum bpf_prog_type prog_type, __u32 ifindex) return errno != EINVAL && errno != EOPNOTSUPP; } -static int load_btf(void) +int libbpf__probe_raw_btf(const char *raw_types, size_t types_len, + const char *str_sec, size_t str_len) { -#define BTF_INFO_ENC(kind, kind_flag, vlen) \ - ((!!(kind_flag) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN)) -#define BTF_TYPE_ENC(name, info, size_or_type) \ - (name), (info), (size_or_type) -#define BTF_INT_ENC(encoding, bits_offset, nr_bits) \ - ((encoding) << 24 | (bits_offset) << 16 | (nr_bits)) -#define BTF_TYPE_INT_ENC(name, encoding, bits_offset, bits, sz) \ - BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), sz), \ - BTF_INT_ENC(encoding, bits_offset, bits) -#define BTF_MEMBER_ENC(name, type, bits_offset) \ - (name), (type), (bits_offset) - - const char btf_str_sec[] = "\0bpf_spin_lock\0val\0cnt\0l"; + struct btf_header hdr = { + .magic = BTF_MAGIC, + .version = BTF_VERSION, + .hdr_len = sizeof(struct btf_header), + .type_len = types_len, + .str_off = types_len, + .str_len = str_len, + }; + int btf_fd, btf_len; + __u8 *raw_btf; + + btf_len = hdr.hdr_len + hdr.type_len + hdr.str_len; + raw_btf = malloc(btf_len); + if (!raw_btf) + return -ENOMEM; + + memcpy(raw_btf, &hdr, sizeof(hdr)); + memcpy(raw_btf + hdr.hdr_len, raw_types, hdr.type_len); + memcpy(raw_btf + hdr.hdr_len + hdr.type_len, str_sec, hdr.str_len); + + btf_fd = bpf_load_btf(raw_btf, btf_len, NULL, 0, false); + if (btf_fd < 0) { + free(raw_btf); + return 0; + } + + close(btf_fd); + free(raw_btf); + return 1; +} + +static int load_sk_storage_btf(void) +{ + const char strs[] = "\0bpf_spin_lock\0val\0cnt\0l"; /* struct bpf_spin_lock { * int val; * }; @@ -155,7 +178,7 @@ static int load_btf(void) * struct bpf_spin_lock l; * }; */ - __u32 btf_raw_types[] = { + __u32 types[] = { /* int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ /* struct bpf_spin_lock */ /* [2] */ @@ -166,23 +189,9 @@ static int load_btf(void) BTF_MEMBER_ENC(19, 1, 0), /* int cnt; */ BTF_MEMBER_ENC(23, 2, 32),/* struct bpf_spin_lock l; */ }; - struct btf_header btf_hdr = { - .magic = BTF_MAGIC, - .version = BTF_VERSION, - .hdr_len = sizeof(struct btf_header), - .type_len = sizeof(btf_raw_types), - .str_off = sizeof(btf_raw_types), - .str_len = sizeof(btf_str_sec), - }; - __u8 raw_btf[sizeof(struct btf_header) + sizeof(btf_raw_types) + - sizeof(btf_str_sec)]; - - memcpy(raw_btf, &btf_hdr, sizeof(btf_hdr)); - memcpy(raw_btf + sizeof(btf_hdr), btf_raw_types, sizeof(btf_raw_types)); - memcpy(raw_btf + sizeof(btf_hdr) + sizeof(btf_raw_types), - btf_str_sec, sizeof(btf_str_sec)); - return bpf_load_btf(raw_btf, sizeof(raw_btf), 0, 0, 0); + return libbpf__probe_raw_btf((char *)types, sizeof(types), + strs, sizeof(strs)); } bool bpf_probe_map_type(enum bpf_map_type map_type, __u32 ifindex) @@ -222,7 +231,7 @@ bool bpf_probe_map_type(enum bpf_map_type map_type, __u32 ifindex) value_size = 8; max_entries = 0; map_flags = BPF_F_NO_PREALLOC; - btf_fd = load_btf(); + btf_fd = load_sk_storage_btf(); if (btf_fd < 0) return false; break; diff --git a/tools/objtool/Documentation/stack-validation.txt b/tools/objtool/Documentation/stack-validation.txt index 3995735a878f..4dd11a554b9b 100644 --- a/tools/objtool/Documentation/stack-validation.txt +++ b/tools/objtool/Documentation/stack-validation.txt @@ -111,7 +111,7 @@ c) Higher live patching compatibility rate be detectable). Objtool makes that possible. For more details, see the livepatch documentation in the Linux kernel - source tree at Documentation/livepatch/livepatch.txt. + source tree at Documentation/livepatch/livepatch.rst. Rules ----- @@ -306,7 +306,7 @@ ignore it: - To skip validation of a file, add - OBJECT_FILES_NON_STANDARD_filename.o := n + OBJECT_FILES_NON_STANDARD_filename.o := y to the Makefile. diff --git a/tools/objtool/check.c b/tools/objtool/check.c index ac743a1d53ab..7325d89ccad9 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -28,6 +28,8 @@ #include <linux/hashtable.h> #include <linux/kernel.h> +#define FAKE_JUMP_OFFSET -1 + struct alternative { struct list_head list; struct instruction *insn; @@ -568,7 +570,7 @@ static int add_jump_destinations(struct objtool_file *file) insn->type != INSN_JUMP_UNCONDITIONAL) continue; - if (insn->ignore) + if (insn->ignore || insn->offset == FAKE_JUMP_OFFSET) continue; rela = find_rela_by_dest_range(insn->sec, insn->offset, @@ -745,10 +747,10 @@ static int handle_group_alt(struct objtool_file *file, clear_insn_state(&fake_jump->state); fake_jump->sec = special_alt->new_sec; - fake_jump->offset = -1; + fake_jump->offset = FAKE_JUMP_OFFSET; fake_jump->type = INSN_JUMP_UNCONDITIONAL; fake_jump->jump_dest = list_next_entry(last_orig_insn, list); - fake_jump->ignore = true; + fake_jump->func = orig_insn->func; } if (!special_alt->new_len) { @@ -1957,7 +1959,8 @@ static int validate_branch(struct objtool_file *file, struct instruction *first, return 1; } - func = insn->func ? insn->func->pfunc : NULL; + if (insn->func) + func = insn->func->pfunc; if (func && insn->ignore) { WARN_FUNC("BUG: why am I validating an ignored function?", diff --git a/tools/pci/Makefile b/tools/pci/Makefile index 46e4c2f318c9..9b7534457060 100644 --- a/tools/pci/Makefile +++ b/tools/pci/Makefile @@ -14,9 +14,12 @@ MAKEFLAGS += -r CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include -ALL_TARGETS := pcitest pcitest.sh +ALL_TARGETS := pcitest ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS)) +SCRIPTS := pcitest.sh +ALL_SCRIPTS := $(patsubst %,$(OUTPUT)%,$(SCRIPTS)) + all: $(ALL_PROGRAMS) export srctree OUTPUT CC LD CFLAGS @@ -46,6 +49,9 @@ install: $(ALL_PROGRAMS) install -d -m 755 $(DESTDIR)$(bindir); \ for program in $(ALL_PROGRAMS); do \ install $$program $(DESTDIR)$(bindir); \ + done; \ + for script in $(ALL_SCRIPTS); do \ + install $$script $(DESTDIR)$(bindir); \ done FORCE: diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c index ec4d51f3308b..5fa5c2bdd427 100644 --- a/tools/pci/pcitest.c +++ b/tools/pci/pcitest.c @@ -140,6 +140,7 @@ static void run_test(struct pci_test *test) } fflush(stdout); + return (ret < 0) ? ret : 1 - ret; /* return 0 if test succeeded */ } int main(int argc, char **argv) @@ -162,7 +163,7 @@ int main(int argc, char **argv) /* set default endpoint device */ test->device = "/dev/pci-endpoint-test.0"; - while ((c = getopt(argc, argv, "D:b:m:x:i:Ilrwcs:")) != EOF) + while ((c = getopt(argc, argv, "D:b:m:x:i:Ilhrwcs:")) != EOF) switch (c) { case 'D': test->device = optarg; @@ -206,7 +207,6 @@ int main(int argc, char **argv) case 's': test->size = strtoul(optarg, NULL, 0); continue; - case '?': case 'h': default: usage: @@ -224,10 +224,10 @@ usage: "\t-w Write buffer test\n" "\t-c Copy buffer test\n" "\t-s <size> Size of buffer {default: 100KB}\n", + "\t-h Print this help message\n", argv[0]); return -EINVAL; } - run_test(test); - return 0; + return run_test(test); } diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 0c52a01dc759..e1bb5288ab1f 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -59,6 +59,10 @@ ifeq ($(SRCARCH),arm64) LIBUNWIND_LIBS = -lunwind -lunwind-aarch64 endif +ifeq ($(SRCARCH),csky) + NO_PERF_REGS := 0 +endif + ifeq ($(ARCH),s390) NO_PERF_REGS := 0 NO_SYSCALL_TABLE := 0 @@ -77,7 +81,7 @@ endif # Disable it on all other architectures in case libdw unwind # support is detected in system. Add supported architectures # to the check. -ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390)) +ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky)) NO_LIBDW_DWARF_UNWIND := 1 endif diff --git a/tools/perf/arch/csky/Build b/tools/perf/arch/csky/Build new file mode 100644 index 000000000000..e4e5f33c84d8 --- /dev/null +++ b/tools/perf/arch/csky/Build @@ -0,0 +1 @@ +perf-y += util/ diff --git a/tools/perf/arch/csky/Makefile b/tools/perf/arch/csky/Makefile new file mode 100644 index 000000000000..7fbca175099e --- /dev/null +++ b/tools/perf/arch/csky/Makefile @@ -0,0 +1,3 @@ +ifndef NO_DWARF +PERF_HAVE_DWARF_REGS := 1 +endif diff --git a/tools/perf/arch/csky/include/perf_regs.h b/tools/perf/arch/csky/include/perf_regs.h new file mode 100644 index 000000000000..8f336ea1161a --- /dev/null +++ b/tools/perf/arch/csky/include/perf_regs.h @@ -0,0 +1,100 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd. + +#ifndef ARCH_PERF_REGS_H +#define ARCH_PERF_REGS_H + +#include <stdlib.h> +#include <linux/types.h> +#include <asm/perf_regs.h> + +#define PERF_REGS_MASK ((1ULL << PERF_REG_CSKY_MAX) - 1) +#define PERF_REGS_MAX PERF_REG_CSKY_MAX +#define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_32 + +#define PERF_REG_IP PERF_REG_CSKY_PC +#define PERF_REG_SP PERF_REG_CSKY_SP + +static inline const char *perf_reg_name(int id) +{ + switch (id) { + case PERF_REG_CSKY_A0: + return "a0"; + case PERF_REG_CSKY_A1: + return "a1"; + case PERF_REG_CSKY_A2: + return "a2"; + case PERF_REG_CSKY_A3: + return "a3"; + case PERF_REG_CSKY_REGS0: + return "regs0"; + case PERF_REG_CSKY_REGS1: + return "regs1"; + case PERF_REG_CSKY_REGS2: + return "regs2"; + case PERF_REG_CSKY_REGS3: + return "regs3"; + case PERF_REG_CSKY_REGS4: + return "regs4"; + case PERF_REG_CSKY_REGS5: + return "regs5"; + case PERF_REG_CSKY_REGS6: + return "regs6"; + case PERF_REG_CSKY_REGS7: + return "regs7"; + case PERF_REG_CSKY_REGS8: + return "regs8"; + case PERF_REG_CSKY_REGS9: + return "regs9"; + case PERF_REG_CSKY_SP: + return "sp"; + case PERF_REG_CSKY_LR: + return "lr"; + case PERF_REG_CSKY_PC: + return "pc"; +#if defined(__CSKYABIV2__) + case PERF_REG_CSKY_EXREGS0: + return "exregs0"; + case PERF_REG_CSKY_EXREGS1: + return "exregs1"; + case PERF_REG_CSKY_EXREGS2: + return "exregs2"; + case PERF_REG_CSKY_EXREGS3: + return "exregs3"; + case PERF_REG_CSKY_EXREGS4: + return "exregs4"; + case PERF_REG_CSKY_EXREGS5: + return "exregs5"; + case PERF_REG_CSKY_EXREGS6: + return "exregs6"; + case PERF_REG_CSKY_EXREGS7: + return "exregs7"; + case PERF_REG_CSKY_EXREGS8: + return "exregs8"; + case PERF_REG_CSKY_EXREGS9: + return "exregs9"; + case PERF_REG_CSKY_EXREGS10: + return "exregs10"; + case PERF_REG_CSKY_EXREGS11: + return "exregs11"; + case PERF_REG_CSKY_EXREGS12: + return "exregs12"; + case PERF_REG_CSKY_EXREGS13: + return "exregs13"; + case PERF_REG_CSKY_EXREGS14: + return "exregs14"; + case PERF_REG_CSKY_TLS: + return "tls"; + case PERF_REG_CSKY_HI: + return "hi"; + case PERF_REG_CSKY_LO: + return "lo"; +#endif + default: + return NULL; + } + + return NULL; +} + +#endif /* ARCH_PERF_REGS_H */ diff --git a/tools/perf/arch/csky/util/Build b/tools/perf/arch/csky/util/Build new file mode 100644 index 000000000000..1160bb2332ba --- /dev/null +++ b/tools/perf/arch/csky/util/Build @@ -0,0 +1,2 @@ +perf-$(CONFIG_DWARF) += dwarf-regs.o +perf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o diff --git a/tools/perf/arch/csky/util/dwarf-regs.c b/tools/perf/arch/csky/util/dwarf-regs.c new file mode 100644 index 000000000000..ca86ecaeacbb --- /dev/null +++ b/tools/perf/arch/csky/util/dwarf-regs.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd. +// Mapping of DWARF debug register numbers into register names. + +#include <stddef.h> +#include <dwarf-regs.h> + +#if defined(__CSKYABIV2__) +#define CSKY_MAX_REGS 73 +const char *csky_dwarf_regs_table[CSKY_MAX_REGS] = { + /* r0 ~ r8 */ + "%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1", "%regs2", "%regs3", + /* r9 ~ r15 */ + "%regs4", "%regs5", "%regs6", "%regs7", "%regs8", "%regs9", "%sp", + "%lr", + /* r16 ~ r23 */ + "%exregs0", "%exregs1", "%exregs2", "%exregs3", "%exregs4", + "%exregs5", "%exregs6", "%exregs7", + /* r24 ~ r31 */ + "%exregs8", "%exregs9", "%exregs10", "%exregs11", "%exregs12", + "%exregs13", "%exregs14", "%tls", + "%pc", NULL, NULL, NULL, "%hi", "%lo", NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "%epc", +}; +#else +#define CSKY_MAX_REGS 57 +const char *csky_dwarf_regs_table[CSKY_MAX_REGS] = { + /* r0 ~ r8 */ + "%sp", "%regs9", "%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1", + /* r9 ~ r15 */ + "%regs2", "%regs3", "%regs4", "%regs5", "%regs6", "%regs7", "%regs8", + "%lr", + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "%epc", +}; +#endif + +const char *get_arch_regstr(unsigned int n) +{ + return (n < CSKY_MAX_REGS) ? csky_dwarf_regs_table[n] : NULL; +} diff --git a/tools/perf/arch/csky/util/unwind-libdw.c b/tools/perf/arch/csky/util/unwind-libdw.c new file mode 100644 index 000000000000..4bb4a06776e4 --- /dev/null +++ b/tools/perf/arch/csky/util/unwind-libdw.c @@ -0,0 +1,77 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd. + +#include <elfutils/libdwfl.h> +#include "../../util/unwind-libdw.h" +#include "../../util/perf_regs.h" +#include "../../util/event.h" + +bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg) +{ + struct unwind_info *ui = arg; + struct regs_dump *user_regs = &ui->sample->user_regs; + Dwarf_Word dwarf_regs[PERF_REG_CSKY_MAX]; + +#define REG(r) ({ \ + Dwarf_Word val = 0; \ + perf_reg_value(&val, user_regs, PERF_REG_CSKY_##r); \ + val; \ +}) + +#if defined(__CSKYABIV2__) + dwarf_regs[0] = REG(A0); + dwarf_regs[1] = REG(A1); + dwarf_regs[2] = REG(A2); + dwarf_regs[3] = REG(A3); + dwarf_regs[4] = REG(REGS0); + dwarf_regs[5] = REG(REGS1); + dwarf_regs[6] = REG(REGS2); + dwarf_regs[7] = REG(REGS3); + dwarf_regs[8] = REG(REGS4); + dwarf_regs[9] = REG(REGS5); + dwarf_regs[10] = REG(REGS6); + dwarf_regs[11] = REG(REGS7); + dwarf_regs[12] = REG(REGS8); + dwarf_regs[13] = REG(REGS9); + dwarf_regs[14] = REG(SP); + dwarf_regs[15] = REG(LR); + dwarf_regs[16] = REG(EXREGS0); + dwarf_regs[17] = REG(EXREGS1); + dwarf_regs[18] = REG(EXREGS2); + dwarf_regs[19] = REG(EXREGS3); + dwarf_regs[20] = REG(EXREGS4); + dwarf_regs[21] = REG(EXREGS5); + dwarf_regs[22] = REG(EXREGS6); + dwarf_regs[23] = REG(EXREGS7); + dwarf_regs[24] = REG(EXREGS8); + dwarf_regs[25] = REG(EXREGS9); + dwarf_regs[26] = REG(EXREGS10); + dwarf_regs[27] = REG(EXREGS11); + dwarf_regs[28] = REG(EXREGS12); + dwarf_regs[29] = REG(EXREGS13); + dwarf_regs[30] = REG(EXREGS14); + dwarf_regs[31] = REG(TLS); + dwarf_regs[32] = REG(PC); +#else + dwarf_regs[0] = REG(SP); + dwarf_regs[1] = REG(REGS9); + dwarf_regs[2] = REG(A0); + dwarf_regs[3] = REG(A1); + dwarf_regs[4] = REG(A2); + dwarf_regs[5] = REG(A3); + dwarf_regs[6] = REG(REGS0); + dwarf_regs[7] = REG(REGS1); + dwarf_regs[8] = REG(REGS2); + dwarf_regs[9] = REG(REGS3); + dwarf_regs[10] = REG(REGS4); + dwarf_regs[11] = REG(REGS5); + dwarf_regs[12] = REG(REGS6); + dwarf_regs[13] = REG(REGS7); + dwarf_regs[14] = REG(REGS8); + dwarf_regs[15] = REG(LR); +#endif + dwfl_thread_state_register_pc(thread, REG(PC)); + + return dwfl_thread_state_registers(thread, 0, PERF_REG_CSKY_MAX, + dwarf_regs); +} diff --git a/tools/power/x86/turbostat/Makefile b/tools/power/x86/turbostat/Makefile index 1598b4fa0b11..045f5f7d68ab 100644 --- a/tools/power/x86/turbostat/Makefile +++ b/tools/power/x86/turbostat/Makefile @@ -9,7 +9,7 @@ ifeq ("$(origin O)", "command line") endif turbostat : turbostat.c -override CFLAGS += -Wall +override CFLAGS += -Wall -I../../../include override CFLAGS += -DMSRHEADER='"../../../../arch/x86/include/asm/msr-index.h"' override CFLAGS += -DINTEL_FAMILY_HEADER='"../../../../arch/x86/include/asm/intel-family.h"' diff --git a/tools/power/x86/x86_energy_perf_policy/Makefile b/tools/power/x86/x86_energy_perf_policy/Makefile index ae7a0e09b722..1fdeef864e7c 100644 --- a/tools/power/x86/x86_energy_perf_policy/Makefile +++ b/tools/power/x86/x86_energy_perf_policy/Makefile @@ -9,7 +9,7 @@ ifeq ("$(origin O)", "command line") endif x86_energy_perf_policy : x86_energy_perf_policy.c -override CFLAGS += -Wall +override CFLAGS += -Wall -I../../../include override CFLAGS += -DMSRHEADER='"../../../../arch/x86/include/asm/msr-index.h"' %: %.c diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl index 275ad8ac8872..4711f57e809a 100755 --- a/tools/testing/ktest/ktest.pl +++ b/tools/testing/ktest/ktest.pl @@ -64,6 +64,7 @@ my %default = ( "STOP_TEST_AFTER" => 600, "MAX_MONITOR_WAIT" => 1800, "GRUB_REBOOT" => "grub2-reboot", + "GRUB_BLS_GET" => "grubby --info=ALL", "SYSLINUX" => "extlinux", "SYSLINUX_PATH" => "/boot/extlinux", "CONNECT_TIMEOUT" => 25, @@ -125,6 +126,7 @@ my $last_grub_menu; my $grub_file; my $grub_number; my $grub_reboot; +my $grub_bls_get; my $syslinux; my $syslinux_path; my $syslinux_label; @@ -295,6 +297,7 @@ my %option_map = ( "GRUB_MENU" => \$grub_menu, "GRUB_FILE" => \$grub_file, "GRUB_REBOOT" => \$grub_reboot, + "GRUB_BLS_GET" => \$grub_bls_get, "SYSLINUX" => \$syslinux, "SYSLINUX_PATH" => \$syslinux_path, "SYSLINUX_LABEL" => \$syslinux_label, @@ -440,7 +443,7 @@ EOF ; $config_help{"REBOOT_TYPE"} = << "EOF" Way to reboot the box to the test kernel. - Only valid options so far are "grub", "grub2", "syslinux", and "script". + Only valid options so far are "grub", "grub2", "grub2bls", "syslinux", and "script". If you specify grub, it will assume grub version 1 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU @@ -454,6 +457,8 @@ $config_help{"REBOOT_TYPE"} = << "EOF" If you specify grub2, then you also need to specify both \$GRUB_MENU and \$GRUB_FILE. + If you specify grub2bls, then you also need to specify \$GRUB_MENU. + If you specify syslinux, then you may use SYSLINUX to define the syslinux command (defaults to extlinux), and SYSLINUX_PATH to specify the path to the syslinux install (defaults to /boot/extlinux). But you have to specify @@ -479,6 +484,9 @@ $config_help{"GRUB_MENU"} = << "EOF" menu must be a non-nested menu. Add the quotes used in the menu to guarantee your selection, as the first menuentry with the content of \$GRUB_MENU that is found will be used. + + For grub2bls, \$GRUB_MENU is searched on the result of \$GRUB_BLS_GET + command for the lines that begin with "title". EOF ; $config_help{"GRUB_FILE"} = << "EOF" @@ -695,7 +703,7 @@ sub get_mandatory_configs { } } - if ($rtype eq "grub") { + if (($rtype eq "grub") or ($rtype eq "grub2bls")) { get_mandatory_config("GRUB_MENU"); } @@ -1871,36 +1879,37 @@ sub run_scp_mod { return run_scp($src, $dst, $cp_scp); } -sub get_grub2_index { +sub _get_grub_index { + + my ($command, $target, $skip) = @_; return if (defined($grub_number) && defined($last_grub_menu) && $last_grub_menu eq $grub_menu && defined($last_machine) && $last_machine eq $machine); - doprint "Find grub2 menu ... "; + doprint "Find $reboot_type menu ... "; $grub_number = -1; my $ssh_grub = $ssh_exec; - $ssh_grub =~ s,\$SSH_COMMAND,cat $grub_file,g; + $ssh_grub =~ s,\$SSH_COMMAND,$command,g; open(IN, "$ssh_grub |") - or dodie "unable to get $grub_file"; + or dodie "unable to execute $command"; my $found = 0; - my $grub_menu_qt = quotemeta($grub_menu); while (<IN>) { - if (/^menuentry.*$grub_menu_qt/) { + if (/$target/) { $grub_number++; $found = 1; last; - } elsif (/^menuentry\s|^submenu\s/) { + } elsif (/$skip/) { $grub_number++; } } close(IN); - dodie "Could not find '$grub_menu' in $grub_file on $machine" + dodie "Could not find '$grub_menu' through $command on $machine" if (!$found); doprint "$grub_number\n"; $last_grub_menu = $grub_menu; @@ -1909,46 +1918,34 @@ sub get_grub2_index { sub get_grub_index { - if ($reboot_type eq "grub2") { - get_grub2_index; - return; - } + my $command; + my $target; + my $skip; + my $grub_menu_qt; - if ($reboot_type ne "grub") { + if ($reboot_type !~ /^grub/) { return; } - return if (defined($grub_number) && defined($last_grub_menu) && - $last_grub_menu eq $grub_menu && defined($last_machine) && - $last_machine eq $machine); - doprint "Find grub menu ... "; - $grub_number = -1; - - my $ssh_grub = $ssh_exec; - $ssh_grub =~ s,\$SSH_COMMAND,cat /boot/grub/menu.lst,g; - - open(IN, "$ssh_grub |") - or dodie "unable to get menu.lst"; - - my $found = 0; - my $grub_menu_qt = quotemeta($grub_menu); + $grub_menu_qt = quotemeta($grub_menu); - while (<IN>) { - if (/^\s*title\s+$grub_menu_qt\s*$/) { - $grub_number++; - $found = 1; - last; - } elsif (/^\s*title\s/) { - $grub_number++; - } + if ($reboot_type eq "grub") { + $command = "cat /boot/grub/menu.lst"; + $target = '^\s*title\s+' . $grub_menu_qt . '\s*$'; + $skip = '^\s*title\s'; + } elsif ($reboot_type eq "grub2") { + $command = "cat $grub_file"; + $target = '^menuentry.*' . $grub_menu_qt; + $skip = '^menuentry\s|^submenu\s'; + } elsif ($reboot_type eq "grub2bls") { + $command = $grub_bls_get; + $target = '^title=.*' . $grub_menu_qt; + $skip = '^title='; + } else { + return; } - close(IN); - dodie "Could not find '$grub_menu' in /boot/grub/menu on $machine" - if (!$found); - doprint "$grub_number\n"; - $last_grub_menu = $grub_menu; - $last_machine = $machine; + _get_grub_index($command, $target, $skip); } sub wait_for_input @@ -4303,7 +4300,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { if (!$buildonly) { $target = "$ssh_user\@$machine"; - if ($reboot_type eq "grub") { + if (($reboot_type eq "grub") or ($reboot_type eq "grub2bls")) { dodie "GRUB_MENU not defined" if (!defined($grub_menu)); } elsif ($reboot_type eq "grub2") { dodie "GRUB_MENU not defined" if (!defined($grub_menu)); @@ -4423,7 +4420,9 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { } if (defined($final_post_ktest)) { - run_command $final_post_ktest; + + my $cp_final_post_ktest = eval_kernel_version $final_post_ktest; + run_command $cp_final_post_ktest; } if ($opt{"POWEROFF_ON_SUCCESS"}) { diff --git a/tools/testing/ktest/sample.conf b/tools/testing/ktest/sample.conf index 8c893a58b68e..c3bc933d437b 100644 --- a/tools/testing/ktest/sample.conf +++ b/tools/testing/ktest/sample.conf @@ -349,13 +349,13 @@ # option to boot to with GRUB_REBOOT #GRUB_FILE = /boot/grub2/grub.cfg -# The tool for REBOOT_TYPE = grub2 to set the next reboot kernel +# The tool for REBOOT_TYPE = grub2 or grub2bls to set the next reboot kernel # to boot into (one shot mode). # (default grub2_reboot) #GRUB_REBOOT = grub2_reboot # The grub title name for the test kernel to boot -# (Only mandatory if REBOOT_TYPE = grub or grub2) +# (Only mandatory if REBOOT_TYPE = grub or grub2 or grub2bls) # # Note, ktest.pl will not update the grub menu.lst, you need to # manually add an option for the test. ktest.pl will search @@ -374,6 +374,10 @@ # do a: GRUB_MENU = 'Test Kernel' # For customizing, add your entry in /etc/grub.d/40_custom. # +# For grub2bls, a search of "title"s are done. The menu is found +# by searching for the contents of GRUB_MENU in the line that starts +# with "title". +# #GRUB_MENU = Test Kernel # For REBOOT_TYPE = syslinux, the name of the syslinux executable @@ -479,6 +483,11 @@ # default (undefined) #POST_KTEST = ${SSH} ~/dismantle_test +# If you want to remove the kernel entry in Boot Loader Specification (BLS) +# environment, use kernel-install command. +# Here's the example: +#POST_KTEST = ssh root@Test "/usr/bin/kernel-install remove $KERNEL_VERSION" + # The default test type (default test) # The test types may be: # build - only build the kernel, do nothing else @@ -530,6 +539,11 @@ # or on some systems: #POST_INSTALL = ssh user@target /sbin/dracut -f /boot/initramfs-test.img $KERNEL_VERSION +# If you want to add the kernel entry in Boot Loader Specification (BLS) +# environment, use kernel-install command. +# Here's the example: +#POST_INSTALL = ssh root@Test "/usr/bin/kernel-install add $KERNEL_VERSION /boot/vmlinuz-$KERNEL_VERSION" + # If for some reason you just want to boot the kernel and you do not # want the test to install anything new. For example, you may just want # to boot test the same kernel over and over and do not want to go through @@ -593,6 +607,8 @@ # For REBOOT_TYPE = grub2, you must define both GRUB_MENU and # GRUB_FILE. # +# For REBOOT_TYPE = grub2bls, you must define GRUB_MENU. +# # For REBOOT_TYPE = syslinux, you must define SYSLINUX_LABEL, and # perhaps modify SYSLINUX (default extlinux) and SYSLINUX_PATH # (default /boot/extlinux) diff --git a/tools/testing/nvdimm/Kbuild b/tools/testing/nvdimm/Kbuild index e1286d2cdfbf..c4a9196d794c 100644 --- a/tools/testing/nvdimm/Kbuild +++ b/tools/testing/nvdimm/Kbuild @@ -68,8 +68,11 @@ device_dax-y += device_dax_test.o device_dax-y += config_check.o dax_pmem-y := $(DAX_SRC)/pmem/pmem.o +dax_pmem-y += dax_pmem_test.o dax_pmem_core-y := $(DAX_SRC)/pmem/core.o +dax_pmem_core-y += dax_pmem_core_test.o dax_pmem_compat-y := $(DAX_SRC)/pmem/compat.o +dax_pmem_compat-y += dax_pmem_compat_test.o dax_pmem-y += config_check.o libnvdimm-y := $(NVDIMM_SRC)/core.o diff --git a/tools/testing/nvdimm/dax_pmem_compat_test.c b/tools/testing/nvdimm/dax_pmem_compat_test.c new file mode 100644 index 000000000000..7cd1877f3765 --- /dev/null +++ b/tools/testing/nvdimm/dax_pmem_compat_test.c @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright(c) 2019 Intel Corporation. All rights reserved. + +#include <linux/module.h> +#include <linux/printk.h> +#include "watermark.h" + +nfit_test_watermark(dax_pmem_compat); diff --git a/tools/testing/nvdimm/dax_pmem_core_test.c b/tools/testing/nvdimm/dax_pmem_core_test.c new file mode 100644 index 000000000000..a4249cdbeec1 --- /dev/null +++ b/tools/testing/nvdimm/dax_pmem_core_test.c @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright(c) 2019 Intel Corporation. All rights reserved. + +#include <linux/module.h> +#include <linux/printk.h> +#include "watermark.h" + +nfit_test_watermark(dax_pmem_core); diff --git a/tools/testing/nvdimm/dax_pmem_test.c b/tools/testing/nvdimm/dax_pmem_test.c new file mode 100644 index 000000000000..fd4c94a5aa02 --- /dev/null +++ b/tools/testing/nvdimm/dax_pmem_test.c @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright(c) 2019 Intel Corporation. All rights reserved. + +#include <linux/module.h> +#include <linux/printk.h> +#include "watermark.h" + +nfit_test_watermark(dax_pmem); diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index 85ffdcfa596b..bb4225cdf666 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -3171,6 +3171,9 @@ static __init int nfit_test_init(void) acpi_nfit_test(); device_dax_test(); mcsafe_test(); + dax_pmem_test(); + dax_pmem_core_test(); + dax_pmem_compat_test(); nfit_test_setup(nfit_test_lookup, nfit_test_evaluate_dsm); diff --git a/tools/testing/nvdimm/watermark.h b/tools/testing/nvdimm/watermark.h index ed0528757bd4..43fc4f3e7927 100644 --- a/tools/testing/nvdimm/watermark.h +++ b/tools/testing/nvdimm/watermark.h @@ -6,6 +6,9 @@ int pmem_test(void); int libnvdimm_test(void); int acpi_nfit_test(void); int device_dax_test(void); +int dax_pmem_test(void); +int dax_pmem_core_test(void); +int dax_pmem_compat_test(void); /* * dummy routine for nfit_test to validate it is linking to the properly diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore index 41e8a689aa77..a877803e4ba8 100644 --- a/tools/testing/selftests/bpf/.gitignore +++ b/tools/testing/selftests/bpf/.gitignore @@ -32,3 +32,5 @@ test_tcpnotify_user test_libbpf test_tcp_check_syncookie_user alu32 +libbpf.pc +libbpf.so.* diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c index 23b159d95c3f..b74e2f6e96d0 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c @@ -15,7 +15,7 @@ static int libbpf_debug_print(enum libbpf_print_level level, static int check_load(const char *file) { struct bpf_prog_load_attr attr; - struct bpf_object *obj; + struct bpf_object *obj = NULL; int err, prog_fd; memset(&attr, 0, sizeof(struct bpf_prog_load_attr)); diff --git a/tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c b/tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c index d636a4f39476..f9b70e81682b 100644 --- a/tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c +++ b/tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c @@ -9,7 +9,7 @@ static void test_task_fd_query_tp_core(const char *probe_name, struct perf_event_attr attr = {}; __u64 probe_offset, probe_addr; __u32 len, prog_id, fd_type; - struct bpf_object *obj; + struct bpf_object *obj = NULL; __u32 duration = 0; char buf[256]; diff --git a/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c b/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c index a2f476f91637..fb095e5cd9af 100644 --- a/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c +++ b/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c @@ -13,6 +13,9 @@ void test_tp_attach_query(void) struct bpf_prog_info prog_info; char buf[256]; + for (i = 0; i < num_progs; i++) + obj[i] = NULL; + snprintf(buf, sizeof(buf), "/sys/kernel/debug/tracing/events/sched/sched_switch/id"); efd = open(buf, O_RDONLY, 0); diff --git a/tools/testing/selftests/bpf/verifier/jump.c b/tools/testing/selftests/bpf/verifier/jump.c index 8e6fcc8940f0..6f951d1ff0a4 100644 --- a/tools/testing/selftests/bpf/verifier/jump.c +++ b/tools/testing/selftests/bpf/verifier/jump.c @@ -178,3 +178,198 @@ .result_unpriv = REJECT, .result = ACCEPT, }, +{ + "jump test 6", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_MOV64_IMM(BPF_REG_1, 2), + BPF_JMP_IMM(BPF_JA, 0, 0, 2), + BPF_MOV64_IMM(BPF_REG_0, 2), + BPF_EXIT_INSN(), + BPF_JMP_REG(BPF_JNE, BPF_REG_0, BPF_REG_1, 16), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, 0), + BPF_JMP_IMM(BPF_JA, 0, 0, -20), + }, + .result = ACCEPT, + .retval = 2, +}, +{ + "jump test 7", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 2), + BPF_MOV64_IMM(BPF_REG_0, 3), + BPF_EXIT_INSN(), + BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_JMP_IMM(BPF_JA, 0, 0, -20), + }, + .result = ACCEPT, + .retval = 3, +}, +{ + "jump test 8", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_MOV64_IMM(BPF_REG_1, 2), + BPF_JMP_IMM(BPF_JA, 0, 0, 2), + BPF_MOV64_IMM(BPF_REG_0, 3), + BPF_EXIT_INSN(), + BPF_JMP_REG(BPF_JNE, BPF_REG_0, BPF_REG_1, 16), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_JMP_IMM(BPF_JA, 0, 0, -20), + }, + .result = ACCEPT, + .retval = 3, +}, +{ + "jump/call test 9", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 2), + BPF_MOV64_IMM(BPF_REG_0, 3), + BPF_EXIT_INSN(), + BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -20), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, + .result = REJECT, + .errstr = "jump out of range from insn 1 to 4", +}, +{ + "jump/call test 10", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), + BPF_MOV64_IMM(BPF_REG_0, 3), + BPF_EXIT_INSN(), + BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -20), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, + .result = REJECT, + .errstr = "last insn is not an exit or jmp", +}, +{ + "jump/call test 11", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4), + BPF_MOV64_IMM(BPF_REG_0, 3), + BPF_EXIT_INSN(), + BPF_MOV64_IMM(BPF_REG_0, 3), + BPF_EXIT_INSN(), + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 26), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_MOV64_IMM(BPF_REG_0, 42), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -31), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, + .result = ACCEPT, + .retval = 3, +}, diff --git a/tools/testing/selftests/cgroup/.gitignore b/tools/testing/selftests/cgroup/.gitignore index adacda50a4b2..7f9835624793 100644 --- a/tools/testing/selftests/cgroup/.gitignore +++ b/tools/testing/selftests/cgroup/.gitignore @@ -1,2 +1,3 @@ test_memcontrol test_core +test_freezer diff --git a/tools/testing/selftests/cgroup/Makefile b/tools/testing/selftests/cgroup/Makefile index 23fbaa4a9630..8d369b6a2069 100644 --- a/tools/testing/selftests/cgroup/Makefile +++ b/tools/testing/selftests/cgroup/Makefile @@ -5,8 +5,10 @@ all: TEST_GEN_PROGS = test_memcontrol TEST_GEN_PROGS += test_core +TEST_GEN_PROGS += test_freezer include ../lib.mk $(OUTPUT)/test_memcontrol: cgroup_util.c $(OUTPUT)/test_core: cgroup_util.c +$(OUTPUT)/test_freezer: cgroup_util.c diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c index 14c9fe284806..4c223266299a 100644 --- a/tools/testing/selftests/cgroup/cgroup_util.c +++ b/tools/testing/selftests/cgroup/cgroup_util.c @@ -74,6 +74,16 @@ char *cg_name_indexed(const char *root, const char *name, int index) return ret; } +char *cg_control(const char *cgroup, const char *control) +{ + size_t len = strlen(cgroup) + strlen(control) + 2; + char *ret = malloc(len); + + snprintf(ret, len, "%s/%s", cgroup, control); + + return ret; +} + int cg_read(const char *cgroup, const char *control, char *buf, size_t len) { char path[PATH_MAX]; @@ -196,7 +206,32 @@ int cg_create(const char *cgroup) return mkdir(cgroup, 0644); } -static int cg_killall(const char *cgroup) +int cg_wait_for_proc_count(const char *cgroup, int count) +{ + char buf[10 * PAGE_SIZE] = {0}; + int attempts; + char *ptr; + + for (attempts = 10; attempts >= 0; attempts--) { + int nr = 0; + + if (cg_read(cgroup, "cgroup.procs", buf, sizeof(buf))) + break; + + for (ptr = buf; *ptr; ptr++) + if (*ptr == '\n') + nr++; + + if (nr >= count) + return 0; + + usleep(100000); + } + + return -1; +} + +int cg_killall(const char *cgroup) { char buf[PAGE_SIZE]; char *ptr = buf; @@ -227,9 +262,7 @@ int cg_destroy(const char *cgroup) retry: ret = rmdir(cgroup); if (ret && errno == EBUSY) { - ret = cg_killall(cgroup); - if (ret) - return ret; + cg_killall(cgroup); usleep(100); goto retry; } @@ -240,6 +273,14 @@ retry: return ret; } +int cg_enter(const char *cgroup, int pid) +{ + char pidbuf[64]; + + snprintf(pidbuf, sizeof(pidbuf), "%d", pid); + return cg_write(cgroup, "cgroup.procs", pidbuf); +} + int cg_enter_current(const char *cgroup) { char pidbuf[64]; @@ -369,3 +410,12 @@ int set_oom_adj_score(int pid, int score) close(fd); return 0; } + +char proc_read_text(int pid, const char *item, char *buf, size_t size) +{ + char path[PATH_MAX]; + + snprintf(path, sizeof(path), "/proc/%d/%s", pid, item); + + return read_text(path, buf, size); +} diff --git a/tools/testing/selftests/cgroup/cgroup_util.h b/tools/testing/selftests/cgroup/cgroup_util.h index 9ac8b7958f83..c72f28046bfa 100644 --- a/tools/testing/selftests/cgroup/cgroup_util.h +++ b/tools/testing/selftests/cgroup/cgroup_util.h @@ -18,6 +18,7 @@ static inline int values_close(long a, long b, int err) extern int cg_find_unified_root(char *root, size_t len); extern char *cg_name(const char *root, const char *name); extern char *cg_name_indexed(const char *root, const char *name, int index); +extern char *cg_control(const char *cgroup, const char *control); extern int cg_create(const char *cgroup); extern int cg_destroy(const char *cgroup); extern int cg_read(const char *cgroup, const char *control, @@ -32,6 +33,7 @@ extern int cg_write(const char *cgroup, const char *control, char *buf); extern int cg_run(const char *cgroup, int (*fn)(const char *cgroup, void *arg), void *arg); +extern int cg_enter(const char *cgroup, int pid); extern int cg_enter_current(const char *cgroup); extern int cg_run_nowait(const char *cgroup, int (*fn)(const char *cgroup, void *arg), @@ -41,3 +43,6 @@ extern int alloc_pagecache(int fd, size_t size); extern int alloc_anon(const char *cgroup, void *arg); extern int is_swap_enabled(void); extern int set_oom_adj_score(int pid, int score); +extern int cg_wait_for_proc_count(const char *cgroup, int count); +extern int cg_killall(const char *cgroup); +extern char proc_read_text(int pid, const char *item, char *buf, size_t size); diff --git a/tools/testing/selftests/cgroup/test_freezer.c b/tools/testing/selftests/cgroup/test_freezer.c new file mode 100644 index 000000000000..2bfddb6d6d3b --- /dev/null +++ b/tools/testing/selftests/cgroup/test_freezer.c @@ -0,0 +1,851 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include <stdbool.h> +#include <linux/limits.h> +#include <sys/ptrace.h> +#include <sys/types.h> +#include <sys/mman.h> +#include <unistd.h> +#include <stdio.h> +#include <errno.h> +#include <poll.h> +#include <stdlib.h> +#include <sys/inotify.h> +#include <string.h> +#include <sys/types.h> +#include <sys/wait.h> + +#include "../kselftest.h" +#include "cgroup_util.h" + +#define DEBUG +#ifdef DEBUG +#define debug(args...) fprintf(stderr, args) +#else +#define debug(args...) +#endif + +/* + * Check if the cgroup is frozen by looking at the cgroup.events::frozen value. + */ +static int cg_check_frozen(const char *cgroup, bool frozen) +{ + if (frozen) { + if (cg_read_strstr(cgroup, "cgroup.events", "frozen 1") != 0) { + debug("Cgroup %s isn't frozen\n", cgroup); + return -1; + } + } else { + /* + * Check the cgroup.events::frozen value. + */ + if (cg_read_strstr(cgroup, "cgroup.events", "frozen 0") != 0) { + debug("Cgroup %s is frozen\n", cgroup); + return -1; + } + } + + return 0; +} + +/* + * Freeze the given cgroup. + */ +static int cg_freeze_nowait(const char *cgroup, bool freeze) +{ + return cg_write(cgroup, "cgroup.freeze", freeze ? "1" : "0"); +} + +/* + * Prepare for waiting on cgroup.events file. + */ +static int cg_prepare_for_wait(const char *cgroup) +{ + int fd, ret = -1; + + fd = inotify_init1(0); + if (fd == -1) { + debug("Error: inotify_init1() failed\n"); + return fd; + } + + ret = inotify_add_watch(fd, cg_control(cgroup, "cgroup.events"), + IN_MODIFY); + if (ret == -1) { + debug("Error: inotify_add_watch() failed\n"); + close(fd); + } + + return fd; +} + +/* + * Wait for an event. If there are no events for 10 seconds, + * treat this an error. + */ +static int cg_wait_for(int fd) +{ + int ret = -1; + struct pollfd fds = { + .fd = fd, + .events = POLLIN, + }; + + while (true) { + ret = poll(&fds, 1, 10000); + + if (ret == -1) { + if (errno == EINTR) + continue; + debug("Error: poll() failed\n"); + break; + } + + if (ret > 0 && fds.revents & POLLIN) { + ret = 0; + break; + } + } + + return ret; +} + +/* + * Attach a task to the given cgroup and wait for a cgroup frozen event. + * All transient events (e.g. populated) are ignored. + */ +static int cg_enter_and_wait_for_frozen(const char *cgroup, int pid, + bool frozen) +{ + int fd, ret = -1; + int attempts; + + fd = cg_prepare_for_wait(cgroup); + if (fd < 0) + return fd; + + ret = cg_enter(cgroup, pid); + if (ret) + goto out; + + for (attempts = 0; attempts < 10; attempts++) { + ret = cg_wait_for(fd); + if (ret) + break; + + ret = cg_check_frozen(cgroup, frozen); + if (ret) + continue; + } + +out: + close(fd); + return ret; +} + +/* + * Freeze the given cgroup and wait for the inotify signal. + * If there are no events in 10 seconds, treat this as an error. + * Then check that the cgroup is in the desired state. + */ +static int cg_freeze_wait(const char *cgroup, bool freeze) +{ + int fd, ret = -1; + + fd = cg_prepare_for_wait(cgroup); + if (fd < 0) + return fd; + + ret = cg_freeze_nowait(cgroup, freeze); + if (ret) { + debug("Error: cg_freeze_nowait() failed\n"); + goto out; + } + + ret = cg_wait_for(fd); + if (ret) + goto out; + + ret = cg_check_frozen(cgroup, freeze); +out: + close(fd); + return ret; +} + +/* + * A simple process running in a sleep loop until being + * re-parented. + */ +static int child_fn(const char *cgroup, void *arg) +{ + int ppid = getppid(); + + while (getppid() == ppid) + usleep(1000); + + return getppid() == ppid; +} + +/* + * A simple test for the cgroup freezer: populated the cgroup with 100 + * running processes and freeze it. Then unfreeze it. Then it kills all + * processes and destroys the cgroup. + */ +static int test_cgfreezer_simple(const char *root) +{ + int ret = KSFT_FAIL; + char *cgroup = NULL; + int i; + + cgroup = cg_name(root, "cg_test_simple"); + if (!cgroup) + goto cleanup; + + if (cg_create(cgroup)) + goto cleanup; + + for (i = 0; i < 100; i++) + cg_run_nowait(cgroup, child_fn, NULL); + + if (cg_wait_for_proc_count(cgroup, 100)) + goto cleanup; + + if (cg_check_frozen(cgroup, false)) + goto cleanup; + + if (cg_freeze_wait(cgroup, true)) + goto cleanup; + + if (cg_freeze_wait(cgroup, false)) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + if (cgroup) + cg_destroy(cgroup); + free(cgroup); + return ret; +} + +/* + * The test creates the following hierarchy: + * A + * / / \ \ + * B E I K + * /\ | + * C D F + * | + * G + * | + * H + * + * with a process in C, H and 3 processes in K. + * Then it tries to freeze and unfreeze the whole tree. + */ +static int test_cgfreezer_tree(const char *root) +{ + char *cgroup[10] = {0}; + int ret = KSFT_FAIL; + int i; + + cgroup[0] = cg_name(root, "cg_test_tree_A"); + if (!cgroup[0]) + goto cleanup; + + cgroup[1] = cg_name(cgroup[0], "B"); + if (!cgroup[1]) + goto cleanup; + + cgroup[2] = cg_name(cgroup[1], "C"); + if (!cgroup[2]) + goto cleanup; + + cgroup[3] = cg_name(cgroup[1], "D"); + if (!cgroup[3]) + goto cleanup; + + cgroup[4] = cg_name(cgroup[0], "E"); + if (!cgroup[4]) + goto cleanup; + + cgroup[5] = cg_name(cgroup[4], "F"); + if (!cgroup[5]) + goto cleanup; + + cgroup[6] = cg_name(cgroup[5], "G"); + if (!cgroup[6]) + goto cleanup; + + cgroup[7] = cg_name(cgroup[6], "H"); + if (!cgroup[7]) + goto cleanup; + + cgroup[8] = cg_name(cgroup[0], "I"); + if (!cgroup[8]) + goto cleanup; + + cgroup[9] = cg_name(cgroup[0], "K"); + if (!cgroup[9]) + goto cleanup; + + for (i = 0; i < 10; i++) + if (cg_create(cgroup[i])) + goto cleanup; + + cg_run_nowait(cgroup[2], child_fn, NULL); + cg_run_nowait(cgroup[7], child_fn, NULL); + cg_run_nowait(cgroup[9], child_fn, NULL); + cg_run_nowait(cgroup[9], child_fn, NULL); + cg_run_nowait(cgroup[9], child_fn, NULL); + + /* + * Wait until all child processes will enter + * corresponding cgroups. + */ + + if (cg_wait_for_proc_count(cgroup[2], 1) || + cg_wait_for_proc_count(cgroup[7], 1) || + cg_wait_for_proc_count(cgroup[9], 3)) + goto cleanup; + + /* + * Freeze B. + */ + if (cg_freeze_wait(cgroup[1], true)) + goto cleanup; + + /* + * Freeze F. + */ + if (cg_freeze_wait(cgroup[5], true)) + goto cleanup; + + /* + * Freeze G. + */ + if (cg_freeze_wait(cgroup[6], true)) + goto cleanup; + + /* + * Check that A and E are not frozen. + */ + if (cg_check_frozen(cgroup[0], false)) + goto cleanup; + + if (cg_check_frozen(cgroup[4], false)) + goto cleanup; + + /* + * Freeze A. Check that A, B and E are frozen. + */ + if (cg_freeze_wait(cgroup[0], true)) + goto cleanup; + + if (cg_check_frozen(cgroup[1], true)) + goto cleanup; + + if (cg_check_frozen(cgroup[4], true)) + goto cleanup; + + /* + * Unfreeze B, F and G + */ + if (cg_freeze_nowait(cgroup[1], false)) + goto cleanup; + + if (cg_freeze_nowait(cgroup[5], false)) + goto cleanup; + + if (cg_freeze_nowait(cgroup[6], false)) + goto cleanup; + + /* + * Check that C and H are still frozen. + */ + if (cg_check_frozen(cgroup[2], true)) + goto cleanup; + + if (cg_check_frozen(cgroup[7], true)) + goto cleanup; + + /* + * Unfreeze A. Check that A, C and K are not frozen. + */ + if (cg_freeze_wait(cgroup[0], false)) + goto cleanup; + + if (cg_check_frozen(cgroup[2], false)) + goto cleanup; + + if (cg_check_frozen(cgroup[9], false)) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + for (i = 9; i >= 0 && cgroup[i]; i--) { + cg_destroy(cgroup[i]); + free(cgroup[i]); + } + + return ret; +} + +/* + * A fork bomb emulator. + */ +static int forkbomb_fn(const char *cgroup, void *arg) +{ + int ppid; + + fork(); + fork(); + + ppid = getppid(); + + while (getppid() == ppid) + usleep(1000); + + return getppid() == ppid; +} + +/* + * The test runs a fork bomb in a cgroup and tries to freeze it. + * Then it kills all processes and checks that cgroup isn't populated + * anymore. + */ +static int test_cgfreezer_forkbomb(const char *root) +{ + int ret = KSFT_FAIL; + char *cgroup = NULL; + + cgroup = cg_name(root, "cg_forkbomb_test"); + if (!cgroup) + goto cleanup; + + if (cg_create(cgroup)) + goto cleanup; + + cg_run_nowait(cgroup, forkbomb_fn, NULL); + + usleep(100000); + + if (cg_freeze_wait(cgroup, true)) + goto cleanup; + + if (cg_killall(cgroup)) + goto cleanup; + + if (cg_wait_for_proc_count(cgroup, 0)) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + if (cgroup) + cg_destroy(cgroup); + free(cgroup); + return ret; +} + +/* + * The test creates two nested cgroups, freezes the parent + * and removes the child. Then it checks that the parent cgroup + * remains frozen and it's possible to create a new child + * without unfreezing. The new child is frozen too. + */ +static int test_cgfreezer_rmdir(const char *root) +{ + int ret = KSFT_FAIL; + char *parent, *child = NULL; + + parent = cg_name(root, "cg_test_rmdir_A"); + if (!parent) + goto cleanup; + + child = cg_name(parent, "cg_test_rmdir_B"); + if (!child) + goto cleanup; + + if (cg_create(parent)) + goto cleanup; + + if (cg_create(child)) + goto cleanup; + + if (cg_freeze_wait(parent, true)) + goto cleanup; + + if (cg_destroy(child)) + goto cleanup; + + if (cg_check_frozen(parent, true)) + goto cleanup; + + if (cg_create(child)) + goto cleanup; + + if (cg_check_frozen(child, true)) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + if (child) + cg_destroy(child); + free(child); + if (parent) + cg_destroy(parent); + free(parent); + return ret; +} + +/* + * The test creates two cgroups: A and B, runs a process in A + * and performs several migrations: + * 1) A (running) -> B (frozen) + * 2) B (frozen) -> A (running) + * 3) A (frozen) -> B (frozen) + * + * On each step it checks the actual state of both cgroups. + */ +static int test_cgfreezer_migrate(const char *root) +{ + int ret = KSFT_FAIL; + char *cgroup[2] = {0}; + int pid; + + cgroup[0] = cg_name(root, "cg_test_migrate_A"); + if (!cgroup[0]) + goto cleanup; + + cgroup[1] = cg_name(root, "cg_test_migrate_B"); + if (!cgroup[1]) + goto cleanup; + + if (cg_create(cgroup[0])) + goto cleanup; + + if (cg_create(cgroup[1])) + goto cleanup; + + pid = cg_run_nowait(cgroup[0], child_fn, NULL); + if (pid < 0) + goto cleanup; + + if (cg_wait_for_proc_count(cgroup[0], 1)) + goto cleanup; + + /* + * Migrate from A (running) to B (frozen) + */ + if (cg_freeze_wait(cgroup[1], true)) + goto cleanup; + + if (cg_enter_and_wait_for_frozen(cgroup[1], pid, true)) + goto cleanup; + + if (cg_check_frozen(cgroup[0], false)) + goto cleanup; + + /* + * Migrate from B (frozen) to A (running) + */ + if (cg_enter_and_wait_for_frozen(cgroup[0], pid, false)) + goto cleanup; + + if (cg_check_frozen(cgroup[1], true)) + goto cleanup; + + /* + * Migrate from A (frozen) to B (frozen) + */ + if (cg_freeze_wait(cgroup[0], true)) + goto cleanup; + + if (cg_enter_and_wait_for_frozen(cgroup[1], pid, true)) + goto cleanup; + + if (cg_check_frozen(cgroup[0], true)) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + if (cgroup[0]) + cg_destroy(cgroup[0]); + free(cgroup[0]); + if (cgroup[1]) + cg_destroy(cgroup[1]); + free(cgroup[1]); + return ret; +} + +/* + * The test checks that ptrace works with a tracing process in a frozen cgroup. + */ +static int test_cgfreezer_ptrace(const char *root) +{ + int ret = KSFT_FAIL; + char *cgroup = NULL; + siginfo_t siginfo; + int pid; + + cgroup = cg_name(root, "cg_test_ptrace"); + if (!cgroup) + goto cleanup; + + if (cg_create(cgroup)) + goto cleanup; + + pid = cg_run_nowait(cgroup, child_fn, NULL); + if (pid < 0) + goto cleanup; + + if (cg_wait_for_proc_count(cgroup, 1)) + goto cleanup; + + if (cg_freeze_wait(cgroup, true)) + goto cleanup; + + if (ptrace(PTRACE_SEIZE, pid, NULL, NULL)) + goto cleanup; + + if (ptrace(PTRACE_INTERRUPT, pid, NULL, NULL)) + goto cleanup; + + waitpid(pid, NULL, 0); + + /* + * Cgroup has to remain frozen, however the test task + * is in traced state. + */ + if (cg_check_frozen(cgroup, true)) + goto cleanup; + + if (ptrace(PTRACE_GETSIGINFO, pid, NULL, &siginfo)) + goto cleanup; + + if (ptrace(PTRACE_DETACH, pid, NULL, NULL)) + goto cleanup; + + if (cg_check_frozen(cgroup, true)) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + if (cgroup) + cg_destroy(cgroup); + free(cgroup); + return ret; +} + +/* + * Check if the process is stopped. + */ +static int proc_check_stopped(int pid) +{ + char buf[PAGE_SIZE]; + int len; + + len = proc_read_text(pid, "stat", buf, sizeof(buf)); + if (len == -1) { + debug("Can't get %d stat\n", pid); + return -1; + } + + if (strstr(buf, "(test_freezer) T ") == NULL) { + debug("Process %d in the unexpected state: %s\n", pid, buf); + return -1; + } + + return 0; +} + +/* + * Test that it's possible to freeze a cgroup with a stopped process. + */ +static int test_cgfreezer_stopped(const char *root) +{ + int pid, ret = KSFT_FAIL; + char *cgroup = NULL; + + cgroup = cg_name(root, "cg_test_stopped"); + if (!cgroup) + goto cleanup; + + if (cg_create(cgroup)) + goto cleanup; + + pid = cg_run_nowait(cgroup, child_fn, NULL); + + if (cg_wait_for_proc_count(cgroup, 1)) + goto cleanup; + + if (kill(pid, SIGSTOP)) + goto cleanup; + + if (cg_check_frozen(cgroup, false)) + goto cleanup; + + if (cg_freeze_wait(cgroup, true)) + goto cleanup; + + if (cg_freeze_wait(cgroup, false)) + goto cleanup; + + if (proc_check_stopped(pid)) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + if (cgroup) + cg_destroy(cgroup); + free(cgroup); + return ret; +} + +/* + * Test that it's possible to freeze a cgroup with a ptraced process. + */ +static int test_cgfreezer_ptraced(const char *root) +{ + int pid, ret = KSFT_FAIL; + char *cgroup = NULL; + siginfo_t siginfo; + + cgroup = cg_name(root, "cg_test_ptraced"); + if (!cgroup) + goto cleanup; + + if (cg_create(cgroup)) + goto cleanup; + + pid = cg_run_nowait(cgroup, child_fn, NULL); + + if (cg_wait_for_proc_count(cgroup, 1)) + goto cleanup; + + if (ptrace(PTRACE_SEIZE, pid, NULL, NULL)) + goto cleanup; + + if (ptrace(PTRACE_INTERRUPT, pid, NULL, NULL)) + goto cleanup; + + waitpid(pid, NULL, 0); + + if (cg_check_frozen(cgroup, false)) + goto cleanup; + + if (cg_freeze_wait(cgroup, true)) + goto cleanup; + + /* + * cg_check_frozen(cgroup, true) will fail here, + * because the task in in the TRACEd state. + */ + if (cg_freeze_wait(cgroup, false)) + goto cleanup; + + if (ptrace(PTRACE_GETSIGINFO, pid, NULL, &siginfo)) + goto cleanup; + + if (ptrace(PTRACE_DETACH, pid, NULL, NULL)) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + if (cgroup) + cg_destroy(cgroup); + free(cgroup); + return ret; +} + +static int vfork_fn(const char *cgroup, void *arg) +{ + int pid = vfork(); + + if (pid == 0) + while (true) + sleep(1); + + return pid; +} + +/* + * Test that it's possible to freeze a cgroup with a process, + * which called vfork() and is waiting for a child. + */ +static int test_cgfreezer_vfork(const char *root) +{ + int ret = KSFT_FAIL; + char *cgroup = NULL; + + cgroup = cg_name(root, "cg_test_vfork"); + if (!cgroup) + goto cleanup; + + if (cg_create(cgroup)) + goto cleanup; + + cg_run_nowait(cgroup, vfork_fn, NULL); + + if (cg_wait_for_proc_count(cgroup, 2)) + goto cleanup; + + if (cg_freeze_wait(cgroup, true)) + goto cleanup; + + ret = KSFT_PASS; + +cleanup: + if (cgroup) + cg_destroy(cgroup); + free(cgroup); + return ret; +} + +#define T(x) { x, #x } +struct cgfreezer_test { + int (*fn)(const char *root); + const char *name; +} tests[] = { + T(test_cgfreezer_simple), + T(test_cgfreezer_tree), + T(test_cgfreezer_forkbomb), + T(test_cgfreezer_rmdir), + T(test_cgfreezer_migrate), + T(test_cgfreezer_ptrace), + T(test_cgfreezer_stopped), + T(test_cgfreezer_ptraced), + T(test_cgfreezer_vfork), +}; +#undef T + +int main(int argc, char *argv[]) +{ + char root[PATH_MAX]; + int i, ret = EXIT_SUCCESS; + + if (cg_find_unified_root(root, sizeof(root))) + ksft_exit_skip("cgroup v2 isn't mounted\n"); + for (i = 0; i < ARRAY_SIZE(tests); i++) { + switch (tests[i].fn(root)) { + case KSFT_PASS: + ksft_test_result_pass("%s\n", tests[i].name); + break; + case KSFT_SKIP: + ksft_test_result_skip("%s\n", tests[i].name); + break; + default: + ret = EXIT_FAILURE; + ksft_test_result_fail("%s\n", tests[i].name); + break; + } + } + + return ret; +} diff --git a/tools/testing/selftests/exec/.gitignore b/tools/testing/selftests/exec/.gitignore index 64073e050c6a..b02279da6fa1 100644 --- a/tools/testing/selftests/exec/.gitignore +++ b/tools/testing/selftests/exec/.gitignore @@ -6,4 +6,5 @@ execveat.moved execveat.path.ephemeral execveat.ephemeral execveat.denatured -xxxxxxxx*
\ No newline at end of file +/recursion-depth +xxxxxxxx* diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile index 427c41ba5151..33339e31e365 100644 --- a/tools/testing/selftests/exec/Makefile +++ b/tools/testing/selftests/exec/Makefile @@ -1,11 +1,15 @@ # SPDX-License-Identifier: GPL-2.0 CFLAGS = -Wall +CFLAGS += -Wno-nonnull +CFLAGS += -D_GNU_SOURCE TEST_GEN_PROGS := execveat TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir # Makefile is a run-time dependency, since it's accessed by the execveat test TEST_FILES := Makefile +TEST_GEN_PROGS += recursion-depth + EXTRA_CLEAN := $(OUTPUT)/subdir.moved $(OUTPUT)/execveat.moved $(OUTPUT)/xxxxx* include ../lib.mk diff --git a/tools/testing/selftests/exec/recursion-depth.c b/tools/testing/selftests/exec/recursion-depth.c new file mode 100644 index 000000000000..2dbd5bc45b3e --- /dev/null +++ b/tools/testing/selftests/exec/recursion-depth.c @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2019 Alexey Dobriyan <adobriyan@gmail.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +/* Test that pointing #! script interpreter to self doesn't recurse. */ +#include <errno.h> +#include <sched.h> +#include <stdio.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <sys/mount.h> +#include <unistd.h> + +int main(void) +{ + if (unshare(CLONE_NEWNS) == -1) { + if (errno == ENOSYS || errno == EPERM) { + fprintf(stderr, "error: unshare, errno %d\n", errno); + return 4; + } + fprintf(stderr, "error: unshare, errno %d\n", errno); + return 1; + } + if (mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL) == -1) { + fprintf(stderr, "error: mount '/', errno %d\n", errno); + return 1; + } + /* Require "exec" filesystem. */ + if (mount(NULL, "/tmp", "ramfs", 0, NULL) == -1) { + fprintf(stderr, "error: mount ramfs, errno %d\n", errno); + return 1; + } + +#define FILENAME "/tmp/1" + + int fd = creat(FILENAME, 0700); + if (fd == -1) { + fprintf(stderr, "error: creat, errno %d\n", errno); + return 1; + } +#define S "#!" FILENAME "\n" + if (write(fd, S, strlen(S)) != strlen(S)) { + fprintf(stderr, "error: write, errno %d\n", errno); + return 1; + } + close(fd); + + int rv = execve(FILENAME, NULL, NULL); + if (rv == -1 && errno == ELOOP) { + return 0; + } + fprintf(stderr, "error: execve, rv %d, errno %d\n", rv, errno); + return 1; +} diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc b/tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc new file mode 100644 index 000000000000..021c03fd885d --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc @@ -0,0 +1,19 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: ftrace - test tracing error log support + +fail() { #msg + echo $1 + exit_fail +} + +# event tracing is currently the only ftrace tracer that uses the +# tracing error_log, hence this check +if [ ! -f set_event ]; then + echo "event tracing is not supported" + exit_unsupported +fi + +ftrace_errlog_check 'event filter parse error' '((sig >= 10 && sig < 15) || dsig ^== 17) && comm != bash' 'events/signal/signal_generate/filter' + +exit 0 diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index 7b96e80e6b8a..779ec11f61bd 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -109,3 +109,15 @@ LOCALHOST=127.0.0.1 yield() { ping $LOCALHOST -c 1 || sleep .001 || usleep 1 || sleep 1 } + +ftrace_errlog_check() { # err-prefix command-with-error-pos-by-^ command-file + pos=$(echo -n "${2%^*}" | wc -c) # error position + command=$(echo "$2" | tr -d ^) + echo "Test command: $command" + echo > error_log + (! echo "$command" > "$3" ) 2> /dev/null + grep "$1: error:" -A 3 error_log + N=$(tail -n 1 error_log | wc -c) + # " Command: " and "^\n" => 13 + test $(expr 13 + $pos) -eq $N +} diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc new file mode 100644 index 000000000000..29faaec942c6 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc @@ -0,0 +1,85 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Kprobe event parser error log check + +[ -f kprobe_events ] || exit_unsupported # this is configurable + +[ -f error_log ] || exit_unsupported + +check_error() { # command-with-error-pos-by-^ + ftrace_errlog_check 'trace_kprobe' "$1" 'kprobe_events' +} + +if grep -q 'r\[maxactive\]' README; then +check_error 'p^100 vfs_read' # MAXACT_NO_KPROBE +check_error 'r^1a111 vfs_read' # BAD_MAXACT +check_error 'r^100000 vfs_read' # MAXACT_TOO_BIG +fi + +check_error 'p ^non_exist_func' # BAD_PROBE_ADDR (enoent) +check_error 'p ^hoge-fuga' # BAD_PROBE_ADDR (bad syntax) +check_error 'p ^hoge+1000-1000' # BAD_PROBE_ADDR (bad syntax) +check_error 'r ^vfs_read+10' # BAD_RETPROBE +check_error 'p:^/bar vfs_read' # NO_GROUP_NAME +check_error 'p:^12345678901234567890123456789012345678901234567890123456789012345/bar vfs_read' # GROUP_TOO_LONG + +check_error 'p:^foo.1/bar vfs_read' # BAD_GROUP_NAME +check_error 'p:foo/^ vfs_read' # NO_EVENT_NAME +check_error 'p:foo/^12345678901234567890123456789012345678901234567890123456789012345 vfs_read' # EVENT_TOO_LONG +check_error 'p:foo/^bar.1 vfs_read' # BAD_EVENT_NAME + +check_error 'p vfs_read ^$retval' # RETVAL_ON_PROBE +check_error 'p vfs_read ^$stack10000' # BAD_STACK_NUM + +if grep -q '$arg<N>' README; then +check_error 'p vfs_read ^$arg10000' # BAD_ARG_NUM +fi + +check_error 'p vfs_read ^$none_var' # BAD_VAR + +check_error 'p vfs_read ^%none_reg' # BAD_REG_NAME +check_error 'p vfs_read ^@12345678abcde' # BAD_MEM_ADDR +check_error 'p vfs_read ^@+10' # FILE_ON_KPROBE + +check_error 'p vfs_read ^+0@0)' # DEREF_NEED_BRACE +check_error 'p vfs_read ^+0ab1(@0)' # BAD_DEREF_OFFS +check_error 'p vfs_read +0(+0(@0^)' # DEREF_OPEN_BRACE + +if grep -A1 "fetcharg:" README | grep -q '\$comm' ; then +check_error 'p vfs_read +0(^$comm)' # COMM_CANT_DEREF +fi + +check_error 'p vfs_read ^&1' # BAD_FETCH_ARG + + +# We've introduced this limitation with array support +if grep -q ' <type>\\\[<array-size>\\\]' README; then +check_error 'p vfs_read +0(^+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(@0))))))))))))))' # TOO_MANY_OPS? +check_error 'p vfs_read +0(@11):u8[10^' # ARRAY_NO_CLOSE +check_error 'p vfs_read +0(@11):u8[10]^a' # BAD_ARRAY_SUFFIX +check_error 'p vfs_read +0(@11):u8[^10a]' # BAD_ARRAY_NUM +check_error 'p vfs_read +0(@11):u8[^256]' # ARRAY_TOO_BIG +fi + +check_error 'p vfs_read @11:^unknown_type' # BAD_TYPE +check_error 'p vfs_read $stack0:^string' # BAD_STRING +check_error 'p vfs_read @11:^b10@a/16' # BAD_BITFIELD + +check_error 'p vfs_read ^arg123456789012345678901234567890=@11' # ARG_NAME_TOO_LOG +check_error 'p vfs_read ^=@11' # NO_ARG_NAME +check_error 'p vfs_read ^var.1=@11' # BAD_ARG_NAME +check_error 'p vfs_read var1=@11 ^var1=@12' # USED_ARG_NAME +check_error 'p vfs_read ^+1234567(+1234567(+1234567(+1234567(+1234567(+1234567(@1234))))))' # ARG_TOO_LONG +check_error 'p vfs_read arg1=^' # NO_ARG_BODY + +# instruction boundary check is valid on x86 (at this moment) +case $(uname -m) in + x86_64|i[3456]86) + echo 'p vfs_read' > kprobe_events + if grep -q FTRACE ../kprobes/list ; then + check_error 'p ^vfs_read+3' # BAD_INSN_BNDRY (only if function-tracer is enabled) + fi + ;; +esac + +exit 0 diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/uprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/kprobe/uprobe_syntax_errors.tc new file mode 100644 index 000000000000..14229d5778a0 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/uprobe_syntax_errors.tc @@ -0,0 +1,23 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Uprobe event parser error log check + +[ -f uprobe_events ] || exit_unsupported # this is configurable + +[ -f error_log ] || exit_unsupported + +check_error() { # command-with-error-pos-by-^ + ftrace_errlog_check 'trace_uprobe' "$1" 'uprobe_events' +} + +check_error 'p ^/non_exist_file:100' # FILE_NOT_FOUND +check_error 'p ^/sys:100' # NO_REGULAR_FILE +check_error 'p /bin/sh:^10a' # BAD_UPROBE_OFFS +check_error 'p /bin/sh:10(^1a)' # BAD_REFCNT +check_error 'p /bin/sh:10(10^' # REFCNT_OPEN_BRACE +check_error 'p /bin/sh:10(10)^a' # BAD_REFCNT_SUFFIX + +check_error 'p /bin/sh:10 ^@+ab' # BAD_FILE_OFFS +check_error 'p /bin/sh:10 ^@symbol' # SYM_ON_UPROBE + +exit 0 diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc deleted file mode 100644 index 9912616a8672..000000000000 --- a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc +++ /dev/null @@ -1,28 +0,0 @@ -#!/bin/sh -# SPDX-License-Identifier: GPL-2.0 -# description: event trigger - test extended error support - - -fail() { #msg - echo $1 - exit_fail -} - -if [ ! -f set_event ]; then - echo "event tracing is not supported" - exit_unsupported -fi - -if [ ! -f synthetic_events ]; then - echo "synthetic event is not supported" - exit_unsupported -fi - -echo "Test extended error support" -echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger -! echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_wakeup/trigger 2> /dev/null -if ! grep -q "ERROR:" events/sched/sched_wakeup/hist; then - fail "Failed to generate extended error in histogram" -fi - -exit 0 diff --git a/tools/testing/selftests/media_tests/media_dev_allocator.sh b/tools/testing/selftests/media_tests/media_dev_allocator.sh new file mode 100755 index 000000000000..ffe00c59a483 --- /dev/null +++ b/tools/testing/selftests/media_tests/media_dev_allocator.sh @@ -0,0 +1,85 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Media Device Allocator API test script +# Copyright (c) 2019 Shuah Khan <shuah@kernel.org> + +echo "Media Device Allocator testing: unbind and bind" +echo "media driver $1 audio driver $2" + +MDRIVER=/sys/bus/usb/drivers/$1 +cd $MDRIVER +MDEV=$(ls -d *\-*) + +ADRIVER=/sys/bus/usb/drivers/$2 +cd $ADRIVER +ADEV=$(ls -d *\-*.1) + +echo "==================================" +echo "Test unbind both devices - start" +echo "Running unbind of $MDEV from $MDRIVER" +echo $MDEV > $MDRIVER/unbind; + +echo "Media device should still be present!" +ls -l /dev/media* + +echo "sound driver is at: $ADRIVER" +echo "Device is: $ADEV" + +echo "Running unbind of $ADEV from $ADRIVER" +echo $ADEV > $ADRIVER/unbind; + +echo "Media device should have been deleted!" +ls -l /dev/media* +echo "Test unbind both devices - end" + +echo "==================================" + +echo "Test bind both devices - start" +echo "Running bind of $MDEV from $MDRIVER" +echo $MDEV > $MDRIVER/bind; + +echo "Media device should be present!" +ls -l /dev/media* + +echo "Running bind of $ADEV from $ADRIVER" +echo $ADEV > $ADRIVER/bind; + +echo "Media device should be there!" +ls -l /dev/media* + +echo "Test bind both devices - end" + +echo "==================================" + +echo "Test unbind $MDEV - bind $MDEV - unbind $ADEV - bind $ADEV start" + +echo "Running unbind of $MDEV from $MDRIVER" +echo $MDEV > $MDRIVER/unbind; + +echo "Media device should be there!" +ls -l /dev/media* + +sleep 1 + +echo "Running bind of $MDEV from $MDRIVER" +echo $MDEV > $MDRIVER/bind; + +echo "Media device should be there!" +ls -l /dev/media* + +echo "Running unbind of $ADEV from $ADRIVER" +echo $ADEV > $ADRIVER/unbind; + +echo "Media device should be there!" +ls -l /dev/media* + +sleep 1 + +echo "Running bind of $ADEV from $ADRIVER" +echo $ADEV > $ADRIVER/bind; + +echo "Media device should be there!" +ls -l /dev/media* + +echo "Test unbind $MDEV - bind $MDEV - unbind $ADEV - bind $ADEV end" +echo "==================================" diff --git a/tools/testing/selftests/powerpc/copyloops/asm/export.h b/tools/testing/selftests/powerpc/copyloops/asm/export.h index 0bab35f6777a..05c1663c89b0 100644 --- a/tools/testing/selftests/powerpc/copyloops/asm/export.h +++ b/tools/testing/selftests/powerpc/copyloops/asm/export.h @@ -1,2 +1,3 @@ /* SPDX-License-Identifier: GPL-2.0 */ #define EXPORT_SYMBOL(x) +#define EXPORT_SYMBOL_KASAN(x) diff --git a/tools/testing/selftests/powerpc/copyloops/asm/kasan.h b/tools/testing/selftests/powerpc/copyloops/asm/kasan.h new file mode 100644 index 000000000000..e69de29bb2d1 --- /dev/null +++ b/tools/testing/selftests/powerpc/copyloops/asm/kasan.h diff --git a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h index 0605df807593..58c1cef3e399 100644 --- a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h +++ b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h @@ -25,6 +25,7 @@ #define _GLOBAL(A) FUNC_START(test_ ## A) #define _GLOBAL_TOC(A) _GLOBAL(A) +#define _GLOBAL_TOC_KASAN(A) _GLOBAL(A) #define PPC_MTOCRF(A, B) mtocrf A, B diff --git a/tools/testing/selftests/powerpc/harness.c b/tools/testing/selftests/powerpc/harness.c index 9d7166dfad1e..ba89353abfcc 100644 --- a/tools/testing/selftests/powerpc/harness.c +++ b/tools/testing/selftests/powerpc/harness.c @@ -21,6 +21,7 @@ #define KILL_TIMEOUT 5 +/* Setting timeout to -1 disables the alarm */ static uint64_t timeout = 120; int run_test(int (test_function)(void), char *name) @@ -43,8 +44,9 @@ int run_test(int (test_function)(void), char *name) setpgid(pid, pid); - /* Wake us up in timeout seconds */ - alarm(timeout); + if (timeout != -1) + /* Wake us up in timeout seconds */ + alarm(timeout); terminated = false; wait: diff --git a/tools/testing/selftests/powerpc/include/reg.h b/tools/testing/selftests/powerpc/include/reg.h index 96043b9b9829..1e797ae396ee 100644 --- a/tools/testing/selftests/powerpc/include/reg.h +++ b/tools/testing/selftests/powerpc/include/reg.h @@ -79,11 +79,13 @@ /* MSR register bits */ #define MSR_TS_S_LG 33 /* Trans Mem state: Suspended */ +#define MSR_TS_T_LG 34 /* Trans Mem state: Active */ #define __MASK(X) (1UL<<(X)) /* macro to check TM MSR bits */ #define MSR_TS_S __MASK(MSR_TS_S_LG) /* Transaction Suspended */ +#define MSR_TS_T __MASK(MSR_TS_T_LG) /* Transaction Transactional */ /* Vector Instructions */ #define VSX_XX1(xs, ra, rb) (((xs) & 0x1f) << 21 | ((ra) << 16) | \ diff --git a/tools/testing/selftests/powerpc/signal/.gitignore b/tools/testing/selftests/powerpc/signal/.gitignore index 1b89224a8aab..dca5852a1546 100644 --- a/tools/testing/selftests/powerpc/signal/.gitignore +++ b/tools/testing/selftests/powerpc/signal/.gitignore @@ -1,2 +1,3 @@ signal signal_tm +sigfuz diff --git a/tools/testing/selftests/powerpc/signal/Makefile b/tools/testing/selftests/powerpc/signal/Makefile index 209a958dca12..113838fbbe7f 100644 --- a/tools/testing/selftests/powerpc/signal/Makefile +++ b/tools/testing/selftests/powerpc/signal/Makefile @@ -1,8 +1,9 @@ # SPDX-License-Identifier: GPL-2.0 -TEST_GEN_PROGS := signal signal_tm +TEST_GEN_PROGS := signal signal_tm sigfuz CFLAGS += -maltivec $(OUTPUT)/signal_tm: CFLAGS += -mhtm +$(OUTPUT)/sigfuz: CFLAGS += -pthread -m64 top_srcdir = ../../../../.. include ../../lib.mk diff --git a/tools/testing/selftests/powerpc/signal/sigfuz.c b/tools/testing/selftests/powerpc/signal/sigfuz.c new file mode 100644 index 000000000000..dade00c698c2 --- /dev/null +++ b/tools/testing/selftests/powerpc/signal/sigfuz.c @@ -0,0 +1,325 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2018, Breno Leitao, IBM Corp. + * Licensed under GPLv2. + * + * Sigfuz(tm): A PowerPC TM-aware signal fuzzer. + * + * This is a new selftest that raises SIGUSR1 signals and handles it in a set + * of different ways, trying to create different scenario for testing + * purpose. + * + * This test works raising a signal and calling sigreturn interleaved with + * TM operations, as starting, suspending and terminating a transaction. The + * test depends on random numbers, and, based on them, it sets different TM + * states. + * + * Other than that, the test fills out the user context struct that is passed + * to the sigreturn system call with random data, in order to make sure that + * the signal handler syscall can handle different and invalid states + * properly. + * + * This selftest has command line parameters to control what kind of tests the + * user wants to run, as for example, if a transaction should be started prior + * to signal being raised, or, after the signal being raised and before the + * sigreturn. If no parameter is given, the default is enabling all options. + * + * This test does not check if the user context is being read and set + * properly by the kernel. Its purpose, at this time, is basically + * guaranteeing that the kernel does not crash on invalid scenarios. + */ + +#include <stdio.h> +#include <limits.h> +#include <sys/wait.h> +#include <unistd.h> +#include <stdlib.h> +#include <signal.h> +#include <string.h> +#include <ucontext.h> +#include <sys/mman.h> +#include <pthread.h> +#include "utils.h" + +/* Selftest defaults */ +#define COUNT_MAX 4000 /* Number of interactions */ +#define THREADS 16 /* Number of threads */ + +/* Arguments options */ +#define ARG_MESS_WITH_TM_AT 0x1 +#define ARG_MESS_WITH_TM_BEFORE 0x2 +#define ARG_MESS_WITH_MSR_AT 0x4 +#define ARG_FOREVER 0x10 +#define ARG_COMPLETE (ARG_MESS_WITH_TM_AT | \ + ARG_MESS_WITH_TM_BEFORE | \ + ARG_MESS_WITH_MSR_AT) + +static int args; +static int nthread = THREADS; +static int count_max = COUNT_MAX; + +/* checkpoint context */ +static ucontext_t *tmp_uc; + +/* Return true with 1/x probability */ +static int one_in_chance(int x) +{ + return rand() % x == 0; +} + +/* Change TM states */ +static void mess_with_tm(void) +{ + /* Starts a transaction 33% of the time */ + if (one_in_chance(3)) { + asm ("tbegin. ;" + "beq 8 ;"); + + /* And suspended half of them */ + if (one_in_chance(2)) + asm("tsuspend. ;"); + } + + /* Call 'tend' in 5% of the runs */ + if (one_in_chance(20)) + asm("tend. ;"); +} + +/* Signal handler that will be invoked with raise() */ +static void trap_signal_handler(int signo, siginfo_t *si, void *uc) +{ + ucontext_t *ucp = uc; + + ucp->uc_link = tmp_uc; + + /* + * Set uc_link in three possible ways: + * - Setting a single 'int' in the whole chunk + * - Cloning ucp into uc_link + * - Allocating a new memory chunk + */ + if (one_in_chance(3)) { + memset(ucp->uc_link, rand(), sizeof(ucontext_t)); + } else if (one_in_chance(2)) { + memcpy(ucp->uc_link, uc, sizeof(ucontext_t)); + } else if (one_in_chance(2)) { + if (tmp_uc) { + free(tmp_uc); + tmp_uc = NULL; + } + tmp_uc = malloc(sizeof(ucontext_t)); + ucp->uc_link = tmp_uc; + /* Trying to cause a major page fault at Kernel level */ + madvise(ucp->uc_link, sizeof(ucontext_t), MADV_DONTNEED); + } + + if (args & ARG_MESS_WITH_MSR_AT) { + /* Changing the checkpointed registers */ + if (one_in_chance(4)) { + ucp->uc_link->uc_mcontext.gp_regs[PT_MSR] |= MSR_TS_S; + } else { + if (one_in_chance(2)) { + ucp->uc_link->uc_mcontext.gp_regs[PT_MSR] |= + MSR_TS_T; + } else if (one_in_chance(2)) { + ucp->uc_link->uc_mcontext.gp_regs[PT_MSR] |= + MSR_TS_T | MSR_TS_S; + } + } + + /* Checking the current register context */ + if (one_in_chance(2)) { + ucp->uc_mcontext.gp_regs[PT_MSR] |= MSR_TS_S; + } else if (one_in_chance(2)) { + if (one_in_chance(2)) + ucp->uc_mcontext.gp_regs[PT_MSR] |= + MSR_TS_T; + else if (one_in_chance(2)) + ucp->uc_mcontext.gp_regs[PT_MSR] |= + MSR_TS_T | MSR_TS_S; + } + } + + if (one_in_chance(20)) { + /* Nested transaction start */ + if (one_in_chance(5)) + mess_with_tm(); + + /* Return without changing any other context info */ + return; + } + + if (one_in_chance(10)) + ucp->uc_mcontext.gp_regs[PT_MSR] = random(); + if (one_in_chance(10)) + ucp->uc_mcontext.gp_regs[PT_NIP] = random(); + if (one_in_chance(10)) + ucp->uc_link->uc_mcontext.gp_regs[PT_MSR] = random(); + if (one_in_chance(10)) + ucp->uc_link->uc_mcontext.gp_regs[PT_NIP] = random(); + + ucp->uc_mcontext.gp_regs[PT_TRAP] = random(); + ucp->uc_mcontext.gp_regs[PT_DSISR] = random(); + ucp->uc_mcontext.gp_regs[PT_DAR] = random(); + ucp->uc_mcontext.gp_regs[PT_ORIG_R3] = random(); + ucp->uc_mcontext.gp_regs[PT_XER] = random(); + ucp->uc_mcontext.gp_regs[PT_RESULT] = random(); + ucp->uc_mcontext.gp_regs[PT_SOFTE] = random(); + ucp->uc_mcontext.gp_regs[PT_DSCR] = random(); + ucp->uc_mcontext.gp_regs[PT_CTR] = random(); + ucp->uc_mcontext.gp_regs[PT_LNK] = random(); + ucp->uc_mcontext.gp_regs[PT_CCR] = random(); + ucp->uc_mcontext.gp_regs[PT_REGS_COUNT] = random(); + + ucp->uc_link->uc_mcontext.gp_regs[PT_TRAP] = random(); + ucp->uc_link->uc_mcontext.gp_regs[PT_DSISR] = random(); + ucp->uc_link->uc_mcontext.gp_regs[PT_DAR] = random(); + ucp->uc_link->uc_mcontext.gp_regs[PT_ORIG_R3] = random(); + ucp->uc_link->uc_mcontext.gp_regs[PT_XER] = random(); + ucp->uc_link->uc_mcontext.gp_regs[PT_RESULT] = random(); + ucp->uc_link->uc_mcontext.gp_regs[PT_SOFTE] = random(); + ucp->uc_link->uc_mcontext.gp_regs[PT_DSCR] = random(); + ucp->uc_link->uc_mcontext.gp_regs[PT_CTR] = random(); + ucp->uc_link->uc_mcontext.gp_regs[PT_LNK] = random(); + ucp->uc_link->uc_mcontext.gp_regs[PT_CCR] = random(); + ucp->uc_link->uc_mcontext.gp_regs[PT_REGS_COUNT] = random(); + + if (args & ARG_MESS_WITH_TM_BEFORE) { + if (one_in_chance(2)) + mess_with_tm(); + } +} + +static void seg_signal_handler(int signo, siginfo_t *si, void *uc) +{ + /* Clear exit for process that segfaults */ + exit(0); +} + +static void *sigfuz_test(void *thrid) +{ + struct sigaction trap_sa, seg_sa; + int ret, i = 0; + pid_t t; + + tmp_uc = malloc(sizeof(ucontext_t)); + + /* Main signal handler */ + trap_sa.sa_flags = SA_SIGINFO; + trap_sa.sa_sigaction = trap_signal_handler; + + /* SIGSEGV signal handler */ + seg_sa.sa_flags = SA_SIGINFO; + seg_sa.sa_sigaction = seg_signal_handler; + + /* The signal handler will enable MSR_TS */ + sigaction(SIGUSR1, &trap_sa, NULL); + + /* If it does not crash, it will segfault, avoid it to retest */ + sigaction(SIGSEGV, &seg_sa, NULL); + + while (i < count_max) { + t = fork(); + + if (t == 0) { + /* Once seed per process */ + srand(time(NULL) + getpid()); + if (args & ARG_MESS_WITH_TM_AT) { + if (one_in_chance(2)) + mess_with_tm(); + } + raise(SIGUSR1); + exit(0); + } else { + waitpid(t, &ret, 0); + } + if (!(args & ARG_FOREVER)) + i++; + } + + /* If not freed already, free now */ + if (tmp_uc) { + free(tmp_uc); + tmp_uc = NULL; + } + + return NULL; +} + +static int signal_fuzzer(void) +{ + int t, rc; + pthread_t *threads; + + threads = malloc(nthread * sizeof(pthread_t)); + + for (t = 0; t < nthread; t++) { + rc = pthread_create(&threads[t], NULL, sigfuz_test, + (void *)&t); + if (rc) + perror("Thread creation error\n"); + } + + for (t = 0; t < nthread; t++) { + rc = pthread_join(threads[t], NULL); + if (rc) + perror("Thread join error\n"); + } + + free(threads); + + return EXIT_SUCCESS; +} + +static void show_help(char *name) +{ + printf("%s: Sigfuzzer for powerpc\n", name); + printf("Usage:\n"); + printf("\t-b\t Mess with TM before raising a SIGUSR1 signal\n"); + printf("\t-a\t Mess with TM after raising a SIGUSR1 signal\n"); + printf("\t-m\t Mess with MSR[TS] bits at mcontext\n"); + printf("\t-x\t Mess with everything above\n"); + printf("\t-f\t Run forever (Press ^C to Quit)\n"); + printf("\t-i\t Amount of interactions. (Default = %d)\n", COUNT_MAX); + printf("\t-t\t Amount of threads. (Default = %d)\n", THREADS); + exit(-1); +} + +int main(int argc, char **argv) +{ + int opt; + + while ((opt = getopt(argc, argv, "bamxt:fi:h")) != -1) { + if (opt == 'b') { + printf("Mess with TM before signal\n"); + args |= ARG_MESS_WITH_TM_BEFORE; + } else if (opt == 'a') { + printf("Mess with TM at signal handler\n"); + args |= ARG_MESS_WITH_TM_AT; + } else if (opt == 'm') { + printf("Mess with MSR[TS] bits in mcontext\n"); + args |= ARG_MESS_WITH_MSR_AT; + } else if (opt == 'x') { + printf("Running with all options enabled\n"); + args |= ARG_COMPLETE; + } else if (opt == 't') { + nthread = atoi(optarg); + printf("Threads = %d\n", nthread); + } else if (opt == 'f') { + args |= ARG_FOREVER; + printf("Press ^C to stop\n"); + test_harness_set_timeout(-1); + } else if (opt == 'i') { + count_max = atoi(optarg); + printf("Running for %d interactions\n", count_max); + } else if (opt == 'h') { + show_help(argv[0]); + } + } + + /* Default test suite */ + if (!args) + args = ARG_COMPLETE; + + test_harness(signal_fuzzer, "signal_fuzzer"); +} diff --git a/tools/testing/selftests/powerpc/vphn/vphn.c b/tools/testing/selftests/powerpc/vphn/vphn.c index 186b906e66d5..1d1f5f2be3b2 120000 --- a/tools/testing/selftests/powerpc/vphn/vphn.c +++ b/tools/testing/selftests/powerpc/vphn/vphn.c @@ -1 +1 @@ -../../../../../arch/powerpc/mm/vphn.c
\ No newline at end of file +../../../../../arch/powerpc/mm/book3s64/vphn.c
\ No newline at end of file diff --git a/tools/testing/selftests/powerpc/vphn/vphn.h b/tools/testing/selftests/powerpc/vphn/vphn.h index 7131efe38c65..45fe160f8288 120000 --- a/tools/testing/selftests/powerpc/vphn/vphn.h +++ b/tools/testing/selftests/powerpc/vphn/vphn.h @@ -1 +1 @@ -../../../../../arch/powerpc/mm/vphn.h
\ No newline at end of file +../../../../../arch/powerpc/mm/book3s64/vphn.h
\ No newline at end of file diff --git a/tools/testing/selftests/sysctl/sysctl.sh b/tools/testing/selftests/sysctl/sysctl.sh index 780ce7123374..6a970b127c9b 100755 --- a/tools/testing/selftests/sysctl/sysctl.sh +++ b/tools/testing/selftests/sysctl/sysctl.sh @@ -24,19 +24,21 @@ TEST_FILE=$(mktemp) # This represents # -# TEST_ID:TEST_COUNT:ENABLED +# TEST_ID:TEST_COUNT:ENABLED:TARGET # # TEST_ID: is the test id number # TEST_COUNT: number of times we should run the test # ENABLED: 1 if enabled, 0 otherwise +# TARGET: test target file required on the test_sysctl module # # Once these are enabled please leave them as-is. Write your own test, # we have tons of space. -ALL_TESTS="0001:1:1" -ALL_TESTS="$ALL_TESTS 0002:1:1" -ALL_TESTS="$ALL_TESTS 0003:1:1" -ALL_TESTS="$ALL_TESTS 0004:1:1" -ALL_TESTS="$ALL_TESTS 0005:3:1" +ALL_TESTS="0001:1:1:int_0001" +ALL_TESTS="$ALL_TESTS 0002:1:1:string_0001" +ALL_TESTS="$ALL_TESTS 0003:1:1:int_0002" +ALL_TESTS="$ALL_TESTS 0004:1:1:uint_0001" +ALL_TESTS="$ALL_TESTS 0005:3:1:int_0003" +ALL_TESTS="$ALL_TESTS 0006:50:1:bitmap_0001" test_modprobe() { @@ -149,6 +151,9 @@ reset_vals() string_0001) VAL="(none)" ;; + bitmap_0001) + VAL="" + ;; *) ;; esac @@ -157,8 +162,10 @@ reset_vals() set_orig() { - if [ ! -z $TARGET ]; then - echo "${ORIG}" > "${TARGET}" + if [ ! -z $TARGET ] && [ ! -z $ORIG ]; then + if [ -f ${TARGET} ]; then + echo "${ORIG}" > "${TARGET}" + fi fi } @@ -177,9 +184,25 @@ verify() return 0 } +# proc files get read a page at a time, which can confuse diff, +# and get you incorrect results on proc files with long data. To use +# diff against them you must first extract the output to a file, and +# then compare against that file. +verify_diff_proc_file() +{ + TMP_DUMP_FILE=$(mktemp) + cat $1 > $TMP_DUMP_FILE + + if ! diff -w -q $TMP_DUMP_FILE $2; then + return 1 + else + return 0 + fi +} + verify_diff_w() { - echo "$TEST_STR" | diff -q -w -u - $1 + echo "$TEST_STR" | diff -q -w -u - $1 > /dev/null return $? } @@ -600,9 +623,70 @@ run_stringtests() test_rc } +target_exists() +{ + TARGET="${SYSCTL}/$1" + TEST_ID="$2" + + if [ ! -f ${TARGET} ] ; then + echo "Target for test $TEST_ID: $TARGET not exist, skipping test ..." + return 0 + fi + return 1 +} + +run_bitmaptest() { + # Total length of bitmaps string to use, a bit under + # the maximum input size of the test node + LENGTH=$((RANDOM % 65000)) + + # First bit to set + BIT=$((RANDOM % 1024)) + + # String containing our list of bits to set + TEST_STR=$BIT + + # build up the string + while [ "${#TEST_STR}" -le "$LENGTH" ]; do + # Make sure next entry is discontiguous, + # skip ahead at least 2 + BIT=$((BIT + $((2 + RANDOM % 10)))) + + # Add new bit to the list + TEST_STR="${TEST_STR},${BIT}" + + # Randomly make it a range + if [ "$((RANDOM % 2))" -eq "1" ]; then + RANGE_END=$((BIT + $((1 + RANDOM % 10)))) + TEST_STR="${TEST_STR}-${RANGE_END}" + BIT=$RANGE_END + fi + done + + echo -n "Checking bitmap handler... " + TEST_FILE=$(mktemp) + echo -n "$TEST_STR" > $TEST_FILE + + cat $TEST_FILE > $TARGET 2> /dev/null + if [ $? -ne 0 ]; then + echo "FAIL" >&2 + rc=1 + test_rc + fi + + if ! verify_diff_proc_file "$TARGET" "$TEST_FILE"; then + echo "FAIL" >&2 + rc=1 + else + echo "ok" + rc=0 + fi + test_rc +} + sysctl_test_0001() { - TARGET="${SYSCTL}/int_0001" + TARGET="${SYSCTL}/$(get_test_target 0001)" reset_vals ORIG=$(cat "${TARGET}") TEST_STR=$(( $ORIG + 1 )) @@ -614,7 +698,7 @@ sysctl_test_0001() sysctl_test_0002() { - TARGET="${SYSCTL}/string_0001" + TARGET="${SYSCTL}/$(get_test_target 0002)" reset_vals ORIG=$(cat "${TARGET}") TEST_STR="Testing sysctl" @@ -627,7 +711,7 @@ sysctl_test_0002() sysctl_test_0003() { - TARGET="${SYSCTL}/int_0002" + TARGET="${SYSCTL}/$(get_test_target 0003)" reset_vals ORIG=$(cat "${TARGET}") TEST_STR=$(( $ORIG + 1 )) @@ -640,7 +724,7 @@ sysctl_test_0003() sysctl_test_0004() { - TARGET="${SYSCTL}/uint_0001" + TARGET="${SYSCTL}/$(get_test_target 0004)" reset_vals ORIG=$(cat "${TARGET}") TEST_STR=$(( $ORIG + 1 )) @@ -653,13 +737,21 @@ sysctl_test_0004() sysctl_test_0005() { - TARGET="${SYSCTL}/int_0003" + TARGET="${SYSCTL}/$(get_test_target 0005)" reset_vals ORIG=$(cat "${TARGET}") run_limit_digit_int_array } +sysctl_test_0006() +{ + TARGET="${SYSCTL}/bitmap_0001" + reset_vals + ORIG="" + run_bitmaptest +} + list_tests() { echo "Test ID list:" @@ -673,10 +765,9 @@ list_tests() echo "0003 x $(get_test_count 0003) - tests proc_dointvec()" echo "0004 x $(get_test_count 0004) - tests proc_douintvec()" echo "0005 x $(get_test_count 0005) - tests proc_douintvec() array" + echo "0006 x $(get_test_count 0006) - tests proc_do_large_bitmap()" } -test_reqs - usage() { NUM_TESTS=$(grep -o ' ' <<<"$ALL_TESTS" | grep -c .) @@ -724,25 +815,35 @@ function get_test_count() { test_num $1 TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$1'}') - LAST_TWO=${TEST_DATA#*:*} - echo ${LAST_TWO%:*} + echo ${TEST_DATA} | awk -F":" '{print $2}' } function get_test_enabled() { test_num $1 TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$1'}') - echo ${TEST_DATA#*:*:} + echo ${TEST_DATA} | awk -F":" '{print $3}' +} + +function get_test_target() +{ + test_num $1 + TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$1'}') + echo ${TEST_DATA} | awk -F":" '{print $4}' } function run_all_tests() { for i in $ALL_TESTS ; do - TEST_ID=${i%:*:*} + TEST_ID=${i%:*:*:*} ENABLED=$(get_test_enabled $TEST_ID) TEST_COUNT=$(get_test_count $TEST_ID) + TEST_TARGET=$(get_test_target $TEST_ID) + if target_exists $TEST_TARGET $TEST_ID; then + continue + fi if [[ $ENABLED -eq "1" ]]; then - test_case $TEST_ID $TEST_COUNT + test_case $TEST_ID $TEST_COUNT $TEST_TARGET fi done } @@ -775,12 +876,14 @@ function watch_case() function test_case() { - NUM_TESTS=$DEFAULT_NUM_TESTS - if [ $# -eq 2 ]; then - NUM_TESTS=$2 - fi + NUM_TESTS=$2 i=0 + + if target_exists $3 $1; then + continue + fi + while [ $i -lt $NUM_TESTS ]; do test_num $1 watch_log $i ${TEST_NAME}_test_$1 noclear @@ -803,15 +906,15 @@ function parse_args() elif [[ "$1" = "-t" ]]; then shift test_num $1 - test_case $1 $(get_test_count $1) + test_case $1 $(get_test_count $1) $(get_test_target $1) elif [[ "$1" = "-c" ]]; then shift test_num $1 test_num $2 - test_case $1 $2 + test_case $1 $2 $(get_test_target $1) elif [[ "$1" = "-s" ]]; then shift - test_case $1 1 + test_case $1 1 $(get_test_target $1) elif [[ "$1" = "-l" ]]; then list_tests elif [[ "$1" = "-h" || "$1" = "--help" ]]; then @@ -825,8 +928,8 @@ function parse_args() test_reqs allow_user_defaults check_production_sysctl_writes_strict -test_modprobe load_req_mod +test_modprobe trap "test_finish" EXIT diff --git a/tools/virtio/ringtest/ptr_ring.c b/tools/virtio/ringtest/ptr_ring.c index 2d566fbd236b..c9b26335f891 100644 --- a/tools/virtio/ringtest/ptr_ring.c +++ b/tools/virtio/ringtest/ptr_ring.c @@ -18,7 +18,6 @@ #define ALIGN(x, a) (((x) + (a) - 1) / (a) * (a)) #define SIZE_MAX (~(size_t)0) #define KMALLOC_MAX_SIZE SIZE_MAX -#define BUG_ON(x) assert(x) typedef pthread_spinlock_t spinlock_t; |
