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authorUlrich Drepper <drepper@gmail.com>2012-01-07 11:19:05 -0500
committerUlrich Drepper <drepper@gmail.com>2012-01-07 11:19:05 -0500
commitd75a0a62b12c35ee85f786d5f8d155ab39909411 (patch)
treec3479d23878ef4ab05629d4a60f4f7623269c1dd /sysdeps/ia64/dl-machine.h
parentdcc9756b5bfbb2b97f73bad863d7e1c4002bea98 (diff)
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Remove IA-64 support
Diffstat (limited to 'sysdeps/ia64/dl-machine.h')
-rw-r--r--sysdeps/ia64/dl-machine.h507
1 files changed, 0 insertions, 507 deletions
diff --git a/sysdeps/ia64/dl-machine.h b/sysdeps/ia64/dl-machine.h
deleted file mode 100644
index 6053b3b..0000000
--- a/sysdeps/ia64/dl-machine.h
+++ /dev/null
@@ -1,507 +0,0 @@
-/* Machine-dependent ELF dynamic relocation inline functions. IA-64 version.
- Copyright (C) 1995-1997, 2000-2006, 2011 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifndef dl_machine_h
-#define dl_machine_h 1
-
-#define ELF_MACHINE_NAME "ia64"
-
-#include <assert.h>
-#include <string.h>
-#include <link.h>
-#include <errno.h>
-#include <dl-fptr.h>
-#include <tls.h>
-
-/* Translate a processor specific dynamic tag to the index
- in l_info array. */
-#define DT_IA_64(x) (DT_IA_64_##x - DT_LOPROC + DT_NUM)
-
-static inline void __attribute__ ((always_inline))
-__ia64_init_bootstrap_fdesc_table (struct link_map *map)
-{
- Elf64_Addr *boot_table;
-
- /* careful: this will be called before got has been relocated... */
- asm (";; addl %0 = @gprel (_dl_boot_fptr_table), gp" : "=r"(boot_table));
-
- map->l_mach.fptr_table_len = ELF_MACHINE_BOOT_FPTR_TABLE_LEN;
- map->l_mach.fptr_table = boot_table;
-}
-
-#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info) \
- __ia64_init_bootstrap_fdesc_table (&bootstrap_map);
-
-/* Return nonzero iff ELF header is compatible with the running host. */
-static inline int __attribute__ ((unused))
-elf_machine_matches_host (const Elf64_Ehdr *ehdr)
-{
- return ehdr->e_machine == EM_IA_64;
-}
-
-
-/* Return the link-time address of _DYNAMIC. */
-static inline Elf64_Addr __attribute__ ((unused, const))
-elf_machine_dynamic (void)
-{
- Elf64_Addr *p;
-
- __asm__ (
- ".section .sdata\n"
- " .type __dynamic_ltv#, @object\n"
- " .size __dynamic_ltv#, 8\n"
- "__dynamic_ltv:\n"
- " data8 @ltv(_DYNAMIC#)\n"
- ".previous\n"
- " addl %0 = @gprel(__dynamic_ltv#), gp ;;"
- : "=r" (p));
-
- return *p;
-}
-
-
-/* Return the run-time load address of the shared object. */
-static inline Elf64_Addr __attribute__ ((unused))
-elf_machine_load_address (void)
-{
- Elf64_Addr ip;
- int *p;
-
- __asm__ (
- "1: mov %0 = ip\n"
- ".section .sdata\n"
- "2: data4 @ltv(1b)\n"
- " .align 8\n"
- ".previous\n"
- " addl %1 = @gprel(2b), gp ;;"
- : "=r" (ip), "=r" (p));
-
- return ip - (Elf64_Addr) *p;
-}
-
-/* Set up the loaded object described by L so its unrelocated PLT
- entries will jump to the on-demand fixup code in dl-runtime.c. */
-
-static inline int __attribute__ ((unused, always_inline))
-elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
-{
- extern void _dl_runtime_resolve (void);
- extern void _dl_runtime_profile (void);
-
- if (lazy)
- {
- register Elf64_Addr gp __asm__ ("gp");
- Elf64_Addr *reserve, doit;
-
- /*
- * Careful with the typecast here or it will try to add l-l_addr
- * pointer elements
- */
- reserve = ((Elf64_Addr *)
- (l->l_info[DT_IA_64 (PLT_RESERVE)]->d_un.d_ptr + l->l_addr));
- /* Identify this shared object. */
- reserve[0] = (Elf64_Addr) l;
-
- /* This function will be called to perform the relocation. */
- if (!profile)
- doit = (Elf64_Addr) ((struct fdesc *) &_dl_runtime_resolve)->ip;
- else
- {
- if (GLRO(dl_profile) != NULL
- && _dl_name_match_p (GLRO(dl_profile), l))
- {
- /* This is the object we are looking for. Say that we really
- want profiling and the timers are started. */
- GL(dl_profile_map) = l;
- }
- doit = (Elf64_Addr) ((struct fdesc *) &_dl_runtime_profile)->ip;
- }
-
- reserve[1] = doit;
- reserve[2] = gp;
- }
-
- return lazy;
-}
-
-/* Names of the architecture-specific auditing callback functions. */
-#define ARCH_LA_PLTENTER ia64_gnu_pltenter
-#define ARCH_LA_PLTEXIT ia64_gnu_pltexit
-
-/* Undo the adds out0 = 16, sp below to get at the value we want in
- __libc_stack_end. */
-#define DL_STACK_END(cookie) \
- ((void *) (((long) (cookie)) - 16))
-
-/* Initial entry point code for the dynamic linker.
- The C function `_dl_start' is the real entry point;
- its return value is the user program's entry point. */
-
-#define RTLD_START asm ( \
-".text\n" \
-" .global _start#\n" \
-" .proc _start#\n" \
-"_start:\n" \
-"0: { .mii\n" \
-" .prologue\n" \
-" .save rp, r0\n" \
-" .body\n" \
-" .prologue\n" \
-" .save ar.pfs, r32\n" \
-" alloc loc0 = ar.pfs, 0, 3, 4, 0\n" \
-" .body\n" \
-" mov r2 = ip\n" \
-" addl r3 = @gprel(0b), r0\n" \
-" ;;\n" \
-" }\n" \
-" { .mlx\n" \
-" /* Calculate the GP, and save a copy in loc1. */\n" \
-" sub gp = r2, r3\n" \
-" movl r8 = 0x9804c0270033f\n" \
-" ;;\n" \
-" }\n" \
-" { .mii\n" \
-" mov ar.fpsr = r8\n" \
-" sub loc1 = r2, r3\n" \
-" /* _dl_start wants a pointer to the pointer to the arg block and\n" \
-" the arg block starts with an integer, thus the magic 16. */\n" \
-" adds out0 = 16, sp\n" \
-" }\n" \
-" { .bbb\n" \
-" br.call.sptk.many b0 = _dl_start#\n" \
-" ;;\n" \
-" }\n" \
-" .endp _start#\n" \
-" /* FALLTHRU */\n" \
-" .global _dl_start_user#\n" \
-" .proc _dl_start_user#\n" \
-"_dl_start_user:\n" \
-" .prologue\n" \
-" .save rp, r0\n" \
-" .body\n" \
-" .prologue\n" \
-" .save ar.pfs, r32\n" \
-" .body\n" \
-" { .mii\n" \
-" addl r3 = @gprel(_dl_skip_args), gp\n" \
-" adds r11 = 24, sp /* Load the address of argv. */\n" \
-" /* Save the pointer to the user entry point fptr in loc2. */\n" \
-" mov loc2 = ret0\n" \
-" ;;\n" \
-" }\n" \
-" { .mii\n" \
-" ld4 r3 = [r3]\n" \
-" adds r10 = 16, sp /* Load the address of argc. */\n" \
-" mov out2 = r11\n" \
-" ;;\n" \
-" /* See if we were run as a command with the executable file\n" \
-" name as an extra leading argument. If so, adjust the argv\n" \
-" pointer to skip _dl_skip_args words.\n" \
-" Note that _dl_skip_args is an integer, not a long - Jes\n" \
-"\n" \
-" The stack pointer has to be 16 byte aligned. We cannot simply\n" \
-" addjust the stack pointer. We have to move the whole argv and\n" \
-" envp and adjust _dl_argv by _dl_skip_args. H.J. */\n" \
-" }\n" \
-" { .mib\n" \
-" ld8 out1 = [r10] /* is argc actually stored as a long\n" \
-" or as an int? */\n" \
-" addl r2 = @ltoff(_dl_argv), gp\n" \
-" ;;\n" \
-" }\n" \
-" { .mmi\n" \
-" ld8 r2 = [r2] /* Get the address of _dl_argv. */\n" \
-" sub out1 = out1, r3 /* Get the new argc. */\n" \
-" shladd r3 = r3, 3, r0\n" \
-" ;;\n" \
-" }\n" \
-" {\n" \
-" .mib\n" \
-" ld8 r17 = [r2] /* Get _dl_argv. */\n" \
-" add r15 = r11, r3 /* The address of the argv we move */\n" \
-" ;;\n" \
-" }\n" \
-" /* ??? Could probably merge these two loops into 3 bundles.\n" \
-" using predication to control which set of copies we're on. */\n" \
-"1: /* Copy argv. */\n" \
-" { .mfi\n" \
-" ld8 r16 = [r15], 8 /* Load the value in the old argv. */\n" \
-" ;;\n" \
-" }\n" \
-" { .mib\n" \
-" st8 [r11] = r16, 8 /* Store it in the new argv. */\n" \
-" cmp.ne p6, p7 = 0, r16\n" \
-"(p6) br.cond.dptk.few 1b\n" \
-" ;;\n" \
-" }\n" \
-" { .mmi\n" \
-" mov out3 = r11\n" \
-" sub r17 = r17, r3 /* Substract _dl_skip_args. */\n" \
-" addl out0 = @gprel(_rtld_local), gp\n" \
-" }\n" \
-"1: /* Copy env. */\n" \
-" { .mfi\n" \
-" ld8 r16 = [r15], 8 /* Load the value in the old env. */\n" \
-" ;;\n" \
-" }\n" \
-" { .mib\n" \
-" st8 [r11] = r16, 8 /* Store it in the new env. */\n" \
-" cmp.ne p6, p7 = 0, r16\n" \
-"(p6) br.cond.dptk.few 1b\n" \
-" ;;\n" \
-" }\n" \
-" { .mmb\n" \
-" st8 [r10] = out1 /* Record the new argc. */\n" \
-" ld8 out0 = [out0] /* get the linkmap */\n" \
-" }\n" \
-" { .mmb\n" \
-" st8 [r2] = r17 /* Load the new _dl_argv. */\n" \
-" br.call.sptk.many b0 = _dl_init_internal#\n" \
-" ;;\n" \
-" }\n" \
-" /* Pass our finalizer function to the user,\n" \
-" and jump to the user's entry point. */\n" \
-" { .mmi\n" \
-" ld8 r3 = [loc2], 8\n" \
-" mov b0 = r0\n" \
-" }\n" \
-" { .mmi\n" \
-" addl ret0 = @ltoff(@fptr(_dl_fini#)), gp\n" \
-" ;;\n" \
-" mov b6 = r3\n" \
-" }\n" \
-" { .mmi\n" \
-" ld8 ret0 = [ret0]\n" \
-" ld8 gp = [loc2]\n" \
-" mov ar.pfs = loc0\n" \
-" ;;\n" \
-" }\n" \
-" { .mfb\n" \
-" br.sptk.many b6\n" \
-" ;;\n" \
-" }\n" \
-" .endp _dl_start_user#\n" \
-".previous\n");
-
-
-#ifndef RTLD_START_SPECIAL_INIT
-#define RTLD_START_SPECIAL_INIT /* nothing */
-#endif
-
-/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or TLS
- variable, so undefined references should not be allowed to define the
- value.
- ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
- of the main executable's symbols, as for a COPY reloc, which we don't
- use. */
-/* ??? Ignore *MSB for now. */
-#define elf_machine_type_class(type) \
- (((type) == R_IA64_IPLTLSB || (type) == R_IA64_DTPMOD64LSB \
- || (type) == R_IA64_DTPREL64LSB || (type) == R_IA64_TPREL64LSB) \
- * ELF_RTYPE_CLASS_PLT)
-
-/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
-#define ELF_MACHINE_JMP_SLOT R_IA64_IPLTLSB
-
-/* According to the IA-64 specific documentation, Rela is always used. */
-#define ELF_MACHINE_NO_REL 1
-
-/* Return the address of the entry point. */
-#define ELF_MACHINE_START_ADDRESS(map, start) \
- DL_STATIC_FUNCTION_ADDRESS (map, start)
-
-/* Fixup a PLT entry to bounce directly to the function at VALUE. */
-static inline struct fdesc __attribute__ ((always_inline))
-elf_machine_fixup_plt (struct link_map *l, lookup_t t,
- const Elf64_Rela *reloc,
- Elf64_Addr *reloc_addr, struct fdesc value)
-{
- /* l is the link_map for the caller, t is the link_map for the object
- * being called */
- /* got has already been relocated in elf_get_dynamic_info() */
- reloc_addr[1] = value.gp;
- /* we need a "release" here to ensure that the gp is visible before
- the code entry point is updated: */
- ((volatile Elf64_Addr *) reloc_addr)[0] = value.ip;
- return value;
-}
-
-/* Return the final value of a plt relocation. */
-static inline struct fdesc
-elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc,
- struct fdesc value)
-{
- /* No need to handle rel vs rela since IA64 is rela only */
- return (struct fdesc) { value.ip + reloc->r_addend, value.gp };
-}
-
-#endif /* !dl_machine_h */
-
-#ifdef RESOLVE_MAP
-
-#define R_IA64_TYPE(R) ((R) & -8)
-#define R_IA64_FORMAT(R) ((R) & 7)
-
-#define R_IA64_FORMAT_32MSB 4
-#define R_IA64_FORMAT_32LSB 5
-#define R_IA64_FORMAT_64MSB 6
-#define R_IA64_FORMAT_64LSB 7
-
-
-/* Perform the relocation specified by RELOC and SYM (which is fully
- resolved). MAP is the object containing the reloc. */
-auto inline void
-__attribute ((always_inline))
-elf_machine_rela (struct link_map *map,
- const Elf64_Rela *reloc,
- const Elf64_Sym *sym,
- const struct r_found_version *version,
- void *const reloc_addr_arg,
- int skip_ifunc)
-{
- Elf64_Addr *const reloc_addr = reloc_addr_arg;
- const unsigned long int r_type = ELF64_R_TYPE (reloc->r_info);
- Elf64_Addr value;
-
-#if !defined RTLD_BOOTSTRAP && !defined HAVE_Z_COMBRELOC && !defined SHARED
- /* This is defined in rtld.c, but nowhere in the static libc.a; make the
- reference weak so static programs can still link. This declaration
- cannot be done when compiling rtld.c (i.e. #ifdef RTLD_BOOTSTRAP)
- because rtld.c contains the common defn for _dl_rtld_map, which is
- incompatible with a weak decl in the same file. */
- weak_extern (_dl_rtld_map);
-#endif
-
- /* We cannot use a switch here because we cannot locate the switch
- jump table until we've self-relocated. */
-
-#if !defined RTLD_BOOTSTRAP || !defined HAVE_Z_COMBRELOC
- if (__builtin_expect (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_REL64LSB),
- 0))
- {
- assert (ELF64_R_TYPE (reloc->r_info) == R_IA64_REL64LSB);
- value = *reloc_addr;
-# if !defined RTLD_BOOTSTRAP && !defined HAVE_Z_COMBRELOC
- /* Already done in dynamic linker. */
- if (map != &GL(dl_rtld_map))
-# endif
- value += map->l_addr;
- }
- else
-#endif
- if (__builtin_expect (r_type == R_IA64_NONE, 0))
- return;
- else
- {
- struct link_map *sym_map;
-
- /* RESOLVE_MAP() will return NULL if it fail to locate the symbol. */
- if ((sym_map = RESOLVE_MAP (&sym, version, r_type)))
- {
- value = sym_map->l_addr + sym->st_value + reloc->r_addend;
-
- if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_DIR64LSB))
- ;/* No adjustment. */
- else if (r_type == R_IA64_IPLTLSB)
- {
- elf_machine_fixup_plt (NULL, NULL, reloc, reloc_addr,
- DL_FIXUP_MAKE_VALUE (sym_map, value));
- return;
- }
- else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_FPTR64LSB))
- value = _dl_make_fptr (sym_map, sym, value);
- else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_PCREL64LSB))
- value -= (Elf64_Addr) reloc_addr & -16;
- else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_DTPMOD64LSB))
-#ifdef RTLD_BOOTSTRAP
- /* During startup the dynamic linker is always index 1. */
- value = 1;
-#else
- /* Get the information from the link map returned by the
- resolv function. */
- value = sym_map->l_tls_modid;
- else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_DTPREL64LSB))
- value -= sym_map->l_addr;
-#endif
- else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_TPREL64LSB))
- {
-#ifndef RTLD_BOOTSTRAP
- CHECK_STATIC_TLS (map, sym_map);
-#endif
- value += sym_map->l_tls_offset - sym_map->l_addr;
- }
- else
- _dl_reloc_bad_type (map, r_type, 0);
- }
- else
- value = 0;
- }
-
- /* ??? Ignore MSB and Instruction format for now. */
- if (R_IA64_FORMAT (r_type) == R_IA64_FORMAT_64LSB)
- *reloc_addr = value;
- else if (R_IA64_FORMAT (r_type) == R_IA64_FORMAT_32LSB)
- *(int *) reloc_addr = value;
- else if (r_type == R_IA64_IPLTLSB)
- {
- reloc_addr[0] = 0;
- reloc_addr[1] = 0;
- }
- else
- _dl_reloc_bad_type (map, r_type, 0);
-}
-
-/* Let do-rel.h know that on IA-64 if l_addr is 0, all RELATIVE relocs
- can be skipped. */
-#define ELF_MACHINE_REL_RELATIVE 1
-
-auto inline void
-__attribute ((always_inline))
-elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
- void *const reloc_addr_arg)
-{
- Elf64_Addr *const reloc_addr = reloc_addr_arg;
- /* ??? Ignore MSB and Instruction format for now. */
- assert (ELF64_R_TYPE (reloc->r_info) == R_IA64_REL64LSB);
-
- *reloc_addr += l_addr;
-}
-
-/* Perform a RELATIVE reloc on the .got entry that transfers to the .plt. */
-auto inline void
-__attribute ((always_inline))
-elf_machine_lazy_rel (struct link_map *map,
- Elf64_Addr l_addr, const Elf64_Rela *reloc,
- int skip_ifunc)
-{
- Elf64_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset);
- const unsigned long int r_type = ELF64_R_TYPE (reloc->r_info);
-
- if (r_type == R_IA64_IPLTLSB)
- {
- reloc_addr[0] += l_addr;
- reloc_addr[1] += l_addr;
- }
- else if (r_type == R_IA64_NONE)
- return;
- else
- _dl_reloc_bad_type (map, r_type, 1);
-}
-
-#endif /* RESOLVE_MAP */