diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/api/Makefile | 4 | ||||
| -rw-r--r-- | examples/api/crt0.S | 13 | ||||
| -rw-r--r-- | examples/api/glue.c | 18 | ||||
| -rw-r--r-- | examples/standalone/stubs.c | 18 |
4 files changed, 38 insertions, 15 deletions
diff --git a/examples/api/Makefile b/examples/api/Makefile index 4e9b8ea17d..6cffee7465 100644 --- a/examples/api/Makefile +++ b/examples/api/Makefile @@ -11,8 +11,12 @@ ifeq ($(ARCH),arm) LOAD_ADDR = 0x1000000 endif ifeq ($(ARCH),mips) +ifdef CONFIG_64BIT +LOAD_ADDR = 0xffffffff80200000 +else LOAD_ADDR = 0x80200000 endif +endif # Resulting ELF and binary exectuables will be named demo and demo.bin extra-y = demo diff --git a/examples/api/crt0.S b/examples/api/crt0.S index ced2c82e5f..5a7049d6b4 100644 --- a/examples/api/crt0.S +++ b/examples/api/crt0.S @@ -41,28 +41,29 @@ syscall: ldr pc, [ip] #elif defined(CONFIG_MIPS) +#include <asm/asm.h> .text .globl __start .ent __start __start: - sw $sp, search_hint + PTR_S $sp, search_hint b main .end __start .globl syscall .ent syscall syscall: - sw $ra, return_addr - lw $t9, syscall_ptr + PTR_S $ra, return_addr + PTR_L $t9, syscall_ptr jalr $t9 nop - lw $ra, return_addr + PTR_L $ra, return_addr jr $ra nop .end syscall return_addr: - .align 4 + .align 8 .long 0 #else #error No support for this arch! @@ -70,7 +71,7 @@ return_addr: .globl syscall_ptr syscall_ptr: - .align 4 + .align 8 .long 0 .globl search_hint diff --git a/examples/api/glue.c b/examples/api/glue.c index d619518d42..8aabf32c89 100644 --- a/examples/api/glue.c +++ b/examples/api/glue.c @@ -77,7 +77,7 @@ int ub_getc(void) { int c; - if (!syscall(API_GETC, NULL, (uint32_t)&c)) + if (!syscall(API_GETC, NULL, &c)) return -1; return c; @@ -87,7 +87,7 @@ int ub_tstc(void) { int t; - if (!syscall(API_TSTC, NULL, (uint32_t)&t)) + if (!syscall(API_TSTC, NULL, &t)) return -1; return t; @@ -95,12 +95,12 @@ int ub_tstc(void) void ub_putc(char c) { - syscall(API_PUTC, NULL, (uint32_t)&c); + syscall(API_PUTC, NULL, &c); } void ub_puts(const char *s) { - syscall(API_PUTS, NULL, (uint32_t)s); + syscall(API_PUTS, NULL, s); } /**************************************** @@ -126,7 +126,7 @@ struct sys_info * ub_get_sys_info(void) si.mr_no = UB_MAX_MR; memset(&mr, 0, sizeof(mr)); - if (!syscall(API_GET_SYS_INFO, &err, (u_int32_t)&si)) + if (!syscall(API_GET_SYS_INFO, &err, &si)) return NULL; return ((err) ? NULL : &si); @@ -344,7 +344,7 @@ char * ub_env_get(const char *name) { char *value; - if (!syscall(API_ENV_GET, NULL, (uint32_t)name, (uint32_t)&value)) + if (!syscall(API_ENV_GET, NULL, name, &value)) return NULL; return value; @@ -352,7 +352,7 @@ char * ub_env_get(const char *name) void ub_env_set(const char *name, char *value) { - syscall(API_ENV_SET, NULL, (uint32_t)name, (uint32_t)value); + syscall(API_ENV_SET, NULL, name, value); } static char env_name[256]; @@ -369,7 +369,7 @@ const char * ub_env_enum(const char *last) * 'name=val' string), since the API_ENUM_ENV call uses envmatch() * internally, which handles such case */ - if (!syscall(API_ENV_ENUM, NULL, (uint32_t)last, (uint32_t)&env)) + if (!syscall(API_ENV_ENUM, NULL, last, &env)) return NULL; if (!env) @@ -396,7 +396,7 @@ int ub_display_get_info(int type, struct display_info *di) { int err = 0; - if (!syscall(API_DISPLAY_GET_INFO, &err, (uint32_t)type, (uint32_t)di)) + if (!syscall(API_DISPLAY_GET_INFO, &err, type, di)) return API_ESYSC; return err; diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c index 920a0a9cf3..0d62067e03 100644 --- a/examples/standalone/stubs.c +++ b/examples/standalone/stubs.c @@ -65,6 +65,23 @@ gd_t *global_data; : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "ip"); #endif #elif defined(CONFIG_MIPS) +#ifdef CONFIG_CPU_MIPS64 +/* + * k0 ($26) holds the pointer to the global_data; t9 ($25) is a call- + * clobbered register that is also used to set gp ($26). Note that the + * jr instruction also executes the instruction immediately following + * it; however, GCC/mips generates an additional `nop' after each asm + * statement + */ +#define EXPORT_FUNC(f, a, x, ...) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" ld $25, %0($26)\n" \ +" ld $25, %1($25)\n" \ +" jr $25\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "t9"); +#else /* * k0 ($26) holds the pointer to the global_data; t9 ($25) is a call- * clobbered register that is also used to set gp ($26). Note that the @@ -80,6 +97,7 @@ gd_t *global_data; " lw $25, %1($25)\n" \ " jr $25\n" \ : : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "t9"); +#endif #elif defined(CONFIG_NIOS2) /* * gp holds the pointer to the global_data, r8 is call-clobbered |
