#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
/* 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... */
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;
extern int dump_task_regs(struct task_struct *, elf_gregset_t *);
extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
#define ELF_CORE_COPY_TASK_REGS(tsk, elf_gregs) dump_task_regs(tsk, elf_gregs)
#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
#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)
#endif /* _ASM_IA64_ELF_H */
