diff options
Diffstat (limited to 'arch/ia64/include/asm/elf.h')
| -rw-r--r-- | arch/ia64/include/asm/elf.h | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h new file mode 100644 index 000000000000..2acb6b6543c9 --- /dev/null +++ b/arch/ia64/include/asm/elf.h @@ -0,0 +1,284 @@ +#ifndef _ASM_IA64_ELF_H +#define _ASM_IA64_ELF_H + +/* + * ELF-specific definitions. + * + * Copyright (C) 1998-1999, 2002-2004 Hewlett-Packard Co + * David Mosberger-Tang <davidm@hpl.hp.com> + */ + + +#include <asm/fpu.h> +#include <asm/page.h> +#include <asm/auxvec.h> + +/* + * This is used to ensure we don't load something for the wrong architecture. + */ +#define elf_check_arch(x) ((x)->e_machine == EM_IA_64) + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_CLASS ELFCLASS64 +#define ELF_DATA ELFDATA2LSB +#define ELF_ARCH EM_IA_64 + +#define USE_ELF_CORE_DUMP +#define CORE_DUMP_USE_REGSET + +/* Least-significant four bits of ELF header's e_flags are OS-specific. The bits are + interpreted as follows by Linux: */ +#define EF_IA_64_LINUX_EXECUTABLE_STACK 0x1 /* is stack (& heap) executable by default? */ + +#define ELF_EXEC_PAGESIZE PAGE_SIZE + +/* + * This is the location that an ET_DYN program is loaded if exec'ed. + * Typical use of this is to invoke "./ld.so someprog" to test out a + * new version of the loader. We need to make sure that it is out of + * the way of the program that it will "exec", and that there is + * sufficient room for the brk. + */ +#define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x800000000UL) + +#define PT_IA_64_UNWIND 0x70000001 + +/* IA-64 relocations: */ +#define R_IA64_NONE 0x00 /* none */ +#define R_IA64_IMM14 0x21 /* symbol + addend, add imm14 */ +#define R_IA64_IMM22 0x22 /* symbol + addend, add imm22 */ +#define R_IA64_IMM64 0x23 /* symbol + addend, mov imm64 */ +#define R_IA64_DIR32MSB 0x24 /* symbol + addend, data4 MSB */ +#define R_IA64_DIR32LSB 0x25 /* symbol + addend, data4 LSB */ +#define R_IA64_DIR64MSB 0x26 /* symbol + addend, data8 MSB */ +#define R_IA64_DIR64LSB 0x27 /* symbol + addend, data8 LSB */ +#define R_IA64_GPREL22 0x2a /* @gprel(sym+add), add imm22 */ +#define R_IA64_GPREL64I 0x2b /* @gprel(sym+add), mov imm64 */ +#define R_IA64_GPREL32MSB 0x2c /* @gprel(sym+add), data4 MSB */ +#define R_IA64_GPREL32LSB 0x2d /* @gprel(sym+add), data4 LSB */ +#define R_IA64_GPREL64MSB 0x2e /* @gprel(sym+add), data8 MSB */ +#define R_IA64_GPREL64LSB 0x2f /* @gprel(sym+add), data8 LSB */ +#define R_IA64_LTOFF22 0x32 /* @ltoff(sym+add), add imm22 */ +#define R_IA64_LTOFF64I 0x33 /* @ltoff(sym+add), mov imm64 */ +#define R_IA64_PLTOFF22 0x3a /* @pltoff(sym+add), add imm22 */ +#define R_IA64_PLTOFF64I 0x3b /* @pltoff(sym+add), mov imm64 */ +#define R_IA64_PLTOFF64MSB 0x3e /* @pltoff(sym+add), data8 MSB */ +#define R_IA64_PLTOFF64LSB 0x3f /* @pltoff(sym+add), data8 LSB */ +#define R_IA64_FPTR64I 0x43 /* @fptr(sym+add), mov imm64 */ +#define R_IA64_FPTR32MSB 0x44 /* @fptr(sym+add), data4 MSB */ +#define R_IA64_FPTR32LSB 0x45 /* @fptr(sym+add), data4 LSB */ +#define R_IA64_FPTR64MSB 0x46 /* @fptr(sym+add), data8 MSB */ +#define R_IA64_FPTR64LSB 0x47 /* @fptr(sym+add), data8 LSB */ +#define R_IA64_PCREL60B 0x48 /* @pcrel(sym+add), brl */ +#define R_IA64_PCREL21B 0x49 /* @pcrel(sym+add), ptb, call */ +#define R_IA64_PCREL21M 0x4a /* @pcrel(sym+add), chk.s */ +#define R_IA64_PCREL21F 0x4b /* @pcrel(sym+add), fchkf */ +#define R_IA64_PCREL32MSB 0x4c /* @pcrel(sym+add), data4 MSB */ +#define R_IA64_PCREL32LSB 0x4d /* @pcrel(sym+add), data4 LSB */ +#define R_IA64_PCREL64MSB 0x4e /* @pcrel(sym+add), data8 MSB */ +#define R_IA64_PCREL64LSB 0x4f /* @pcrel(sym+add), data8 LSB */ +#define R_IA64_LTOFF_FPTR22 0x52 /* @ltoff(@fptr(s+a)), imm22 */ +#define R_IA64_LTOFF_FPTR64I 0x53 /* @ltoff(@fptr(s+a)), imm64 */ +#define R_IA64_LTOFF_FPTR32MSB 0x54 /* @ltoff(@fptr(s+a)), 4 MSB */ +#define R_IA64_LTOFF_FPTR32LSB 0x55 /* @ltoff(@fptr(s+a)), 4 LSB */ +#define R_IA64_LTOFF_FPTR64MSB 0x56 /* @ltoff(@fptr(s+a)), 8 MSB */ +#define R_IA64_LTOFF_FPTR64LSB 0x57 /* @ltoff(@fptr(s+a)), 8 LSB */ +#define R_IA64_SEGREL32MSB 0x5c /* @segrel(sym+add), data4 MSB */ +#define R_IA64_SEGREL32LSB 0x5d /* @segrel(sym+add), data4 LSB */ +#define R_IA64_SEGREL64MSB 0x5e /* @segrel(sym+add), data8 MSB */ +#define R_IA64_SEGREL64LSB 0x5f /* @segrel(sym+add), data8 LSB */ +#define R_IA64_SECREL32MSB 0x64 /* @secrel(sym+add), data4 MSB */ +#define R_IA64_SECREL32LSB 0x65 /* @secrel(sym+add), data4 LSB */ +#define R_IA64_SECREL64MSB 0x66 /* @secrel(sym+add), data8 MSB */ +#define R_IA64_SECREL64LSB 0x67 /* @secrel(sym+add), data8 LSB */ +#define R_IA64_REL32MSB 0x6c /* data 4 + REL */ +#define R_IA64_REL32LSB 0x6d /* data 4 + REL */ +#define R_IA64_REL64MSB 0x6e /* data 8 + REL */ +#define R_IA64_REL64LSB 0x6f /* data 8 + REL */ +#define R_IA64_LTV32MSB 0x74 /* symbol + addend, data4 MSB */ +#define R_IA64_LTV32LSB 0x75 /* symbol + addend, data4 LSB */ +#define R_IA64_LTV64MSB 0x76 /* symbol + addend, data8 MSB */ +#define R_IA64_LTV64LSB 0x77 /* symbol + addend, data8 LSB */ +#define R_IA64_PCREL21BI 0x79 /* @pcrel(sym+add), ptb, call */ +#define R_IA64_PCREL22 0x7a /* @pcrel(sym+add), imm22 */ +#define R_IA64_PCREL64I 0x7b /* @pcrel(sym+add), imm64 */ +#define R_IA64_IPLTMSB 0x80 /* dynamic reloc, imported PLT, MSB */ +#define R_IA64_IPLTLSB 0x81 /* dynamic reloc, imported PLT, LSB */ +#define R_IA64_COPY 0x84 /* dynamic reloc, data copy */ +#define R_IA64_SUB 0x85 /* -symbol + addend, add imm22 */ +#define R_IA64_LTOFF22X 0x86 /* LTOFF22, relaxable. */ +#define R_IA64_LDXMOV 0x87 /* Use of LTOFF22X. */ +#define R_IA64_TPREL14 0x91 /* @tprel(sym+add), add imm14 */ +#define R_IA64_TPREL22 0x92 /* @tprel(sym+add), add imm22 */ +#define R_IA64_TPREL64I 0x93 /* @tprel(sym+add), add imm64 */ +#define R_IA64_TPREL64MSB 0x96 /* @tprel(sym+add), data8 MSB */ +#define R_IA64_TPREL64LSB 0x97 /* @tprel(sym+add), data8 LSB */ +#define R_IA64_LTOFF_TPREL22 0x9a /* @ltoff(@tprel(s+a)), add imm22 */ +#define R_IA64_DTPMOD64MSB 0xa6 /* @dtpmod(sym+add), data8 MSB */ +#define R_IA64_DTPMOD64LSB 0xa7 /* @dtpmod(sym+add), data8 LSB */ +#define R_IA64_LTOFF_DTPMOD22 0xaa /* @ltoff(@dtpmod(s+a)), imm22 */ +#define R_IA64_DTPREL14 0xb1 /* @dtprel(sym+add), imm14 */ +#define R_IA64_DTPREL22 0xb2 /* @dtprel(sym+add), imm22 */ +#define R_IA64_DTPREL64I 0xb3 /* @dtprel(sym+add), imm64 */ +#define R_IA64_DTPREL32MSB 0xb4 /* @dtprel(sym+add), data4 MSB */ +#define R_IA64_DTPREL32LSB 0xb5 /* @dtprel(sym+add), data4 LSB */ +#define R_IA64_DTPREL64MSB 0xb6 /* @dtprel(sym+add), data8 MSB */ +#define R_IA64_DTPREL64LSB 0xb7 /* @dtprel(sym+add), data8 LSB */ +#define R_IA64_LTOFF_DTPREL22 0xba /* @ltoff(@dtprel(s+a)), imm22 */ + +/* IA-64 specific section flags: */ +#define SHF_IA_64_SHORT 0x10000000 /* section near gp */ + +/* + * We use (abuse?) this macro to insert the (empty) vm_area that is + * used to map the register backing store. I don't see any better + * place to do this, but we should discuss this with Linus once we can + * talk to him... + */ +extern void ia64_init_addr_space (void); +#define ELF_PLAT_INIT(_r, load_addr) ia64_init_addr_space() + +/* ELF register definitions. This is needed for core dump support. */ + +/* + * elf_gregset_t contains the application-level state in the following order: + * r0-r31 + * NaT bits (for r0-r31; bit N == 1 iff rN is a NaT) + * predicate registers (p0-p63) + * b0-b7 + * ip cfm psr + * ar.rsc ar.bsp ar.bspstore ar.rnat + * ar.ccv ar.unat ar.fpsr ar.pfs ar.lc ar.ec ar.csd ar.ssd + */ +#define ELF_NGREG 128 /* we really need just 72 but let's leave some headroom... */ +#define ELF_NFPREG 128 /* f0 and f1 could be omitted, but so what... */ + +/* elf_gregset_t register offsets */ +#define ELF_GR_0_OFFSET 0 +#define ELF_NAT_OFFSET (32 * sizeof(elf_greg_t)) +#define ELF_PR_OFFSET (33 * sizeof(elf_greg_t)) +#define ELF_BR_0_OFFSET (34 * sizeof(elf_greg_t)) +#define ELF_CR_IIP_OFFSET (42 * sizeof(elf_greg_t)) +#define ELF_CFM_OFFSET (43 * sizeof(elf_greg_t)) +#define ELF_CR_IPSR_OFFSET (44 * sizeof(elf_greg_t)) +#define ELF_GR_OFFSET(i) (ELF_GR_0_OFFSET + i * sizeof(elf_greg_t)) +#define ELF_BR_OFFSET(i) (ELF_BR_0_OFFSET + i * sizeof(elf_greg_t)) +#define ELF_AR_RSC_OFFSET (45 * sizeof(elf_greg_t)) +#define ELF_AR_BSP_OFFSET (46 * sizeof(elf_greg_t)) +#define ELF_AR_BSPSTORE_OFFSET (47 * sizeof(elf_greg_t)) +#define ELF_AR_RNAT_OFFSET (48 * sizeof(elf_greg_t)) +#define ELF_AR_CCV_OFFSET (49 * sizeof(elf_greg_t)) +#define ELF_AR_UNAT_OFFSET (50 * sizeof(elf_greg_t)) +#define ELF_AR_FPSR_OFFSET (51 * sizeof(elf_greg_t)) +#define ELF_AR_PFS_OFFSET (52 * sizeof(elf_greg_t)) +#define ELF_AR_LC_OFFSET (53 * sizeof(elf_greg_t)) +#define ELF_AR_EC_OFFSET (54 * sizeof(elf_greg_t)) +#define ELF_AR_CSD_OFFSET (55 * sizeof(elf_greg_t)) +#define ELF_AR_SSD_OFFSET (56 * sizeof(elf_greg_t)) +#define ELF_AR_END_OFFSET (57 * sizeof(elf_greg_t)) + +typedef unsigned long elf_fpxregset_t; + +typedef unsigned long elf_greg_t; +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +typedef struct ia64_fpreg elf_fpreg_t; +typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; + + + +struct pt_regs; /* forward declaration... */ +extern void ia64_elf_core_copy_regs (struct pt_regs *src, elf_gregset_t dst); +#define ELF_CORE_COPY_REGS(_dest,_regs) ia64_elf_core_copy_regs(_regs, _dest); + +/* This macro yields a bitmask that programs can use to figure out + what instruction set this CPU supports. */ +#define ELF_HWCAP 0 + +/* This macro yields a string that ld.so will use to load + implementation specific libraries for optimization. Not terribly + relevant until we have real hardware to play with... */ +#define ELF_PLATFORM NULL + +#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX) +#define elf_read_implies_exec(ex, executable_stack) \ + ((executable_stack!=EXSTACK_DISABLE_X) && ((ex).e_flags & EF_IA_64_LINUX_EXECUTABLE_STACK) != 0) + +struct task_struct; + +#define GATE_EHDR ((const struct elfhdr *) GATE_ADDR) + +/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ +#define ARCH_DLINFO \ +do { \ + extern char __kernel_syscall_via_epc[]; \ + NEW_AUX_ENT(AT_SYSINFO, (unsigned long) __kernel_syscall_via_epc); \ + NEW_AUX_ENT(AT_SYSINFO_EHDR, (unsigned long) GATE_EHDR); \ +} while (0) + + +/* + * These macros parameterize elf_core_dump in fs/binfmt_elf.c to write out + * extra segments containing the gate DSO contents. Dumping its + * contents makes post-mortem fully interpretable later without matching up + * the same kernel and hardware config to see what PC values meant. + * Dumping its extra ELF program headers includes all the other information + * a debugger needs to easily find how the gate DSO was being used. + */ +#define ELF_CORE_EXTRA_PHDRS (GATE_EHDR->e_phnum) +#define ELF_CORE_WRITE_EXTRA_PHDRS \ +do { \ + const struct elf_phdr *const gate_phdrs = \ + (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff); \ + int i; \ + Elf64_Off ofs = 0; \ + for (i = 0; i < GATE_EHDR->e_phnum; ++i) { \ + struct elf_phdr phdr = gate_phdrs[i]; \ + if (phdr.p_type == PT_LOAD) { \ + phdr.p_memsz = PAGE_ALIGN(phdr.p_memsz); \ + phdr.p_filesz = phdr.p_memsz; \ + if (ofs == 0) { \ + ofs = phdr.p_offset = offset; \ + offset += phdr.p_filesz; \ + } \ + else \ + phdr.p_offset = ofs; \ + } \ + else \ + phdr.p_offset += ofs; \ + phdr.p_paddr = 0; /* match other core phdrs */ \ + DUMP_WRITE(&phdr, sizeof(phdr)); \ + } \ +} while (0) +#define ELF_CORE_WRITE_EXTRA_DATA \ +do { \ + const struct elf_phdr *const gate_phdrs = \ + (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff); \ + int i; \ + for (i = 0; i < GATE_EHDR->e_phnum; ++i) { \ + if (gate_phdrs[i].p_type == PT_LOAD) { \ + DUMP_WRITE((void *) gate_phdrs[i].p_vaddr, \ + PAGE_ALIGN(gate_phdrs[i].p_memsz)); \ + break; \ + } \ + } \ +} while (0) + +/* + * format for entries in the Global Offset Table + */ +struct got_entry { + uint64_t val; +}; + +/* + * Layout of the Function Descriptor + */ +struct fdesc { + uint64_t ip; + uint64_t gp; +}; + +#endif /* _ASM_IA64_ELF_H */ |
