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