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(elf_machine_rela): Mention program name in warning message.
This commit is contained in:
Ulrich Drepper
parent
db45cbee79
commit
09d24ad477
@ -234,11 +234,13 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
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if (sym->st_size > refsym->st_size
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|| (_dl_verbose && sym->st_size < refsym->st_size))
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{
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extern char **_dl_argv;
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const char *strtab;
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strtab = ((void *) map->l_addr
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+ map->l_info[DT_STRTAB]->d_un.d_ptr);
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_dl_sysdep_error ("Symbol `", strtab + refsym->st_name,
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_dl_sysdep_error (_dl_argv[0] ?: "<program name unknown>",
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": Symbol `", strtab + refsym->st_name,
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"' has different size in shared object, "
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"consider re-linking\n", NULL);
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}
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@ -125,32 +125,11 @@ elf_machine_got (void)
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}
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/* Return the link-time address of _DYNAMIC. Conveniently, this is the
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first element of the GOT. This must be inlined in a function which
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uses global data. */
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static inline ElfW(Addr)
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elf_machine_dynamic (void)
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{
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register ElfW(Addr) gp asm ("$28");
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return * (ElfW(Addr) *) (gp - 0x7ff0);
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}
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/* Return the run-time load address of the shared object. */
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static inline ElfW(Addr)
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elf_machine_load_address (void)
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{
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ElfW(Addr) addr;
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#ifdef __mips64
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asm (" .set noreorder\n"
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" dla %0, here\n"
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" bltzal $0, here\n"
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" nop\n"
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"here: dsubu %0, $31, %0\n"
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" .set reorder\n"
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: "=r" (addr)
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: /* No inputs */
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: "$31");
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#else
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asm (" .set noreorder\n"
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" la %0, here\n"
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" bltzal $0, here\n"
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@ -160,7 +139,6 @@ elf_machine_load_address (void)
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: "=r" (addr)
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: /* No inputs */
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: "$31");
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#endif
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return addr;
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}
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@ -364,100 +342,6 @@ elf_machine_runtime_link_map (ElfW(Addr) gpreg, ElfW(Addr) stub_pc)
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t8 index for this function symbol in .dynsym
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to usual c arguments. */
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#ifdef __mips64
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#define ELF_MACHINE_RUNTIME_TRAMPOLINE \
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/* The flag _dl_mips_gnu_objects is set if all dynamic objects are \
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generated by the gnu linker. */ \
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int _dl_mips_gnu_objects = 1; \
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\
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/* This is called from assembly stubs below which the compiler can't see. */ \
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static ElfW(Addr) \
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__dl_runtime_resolve (ElfW(Word), ElfW(Word), ElfW(Addr), ElfW(Addr)) \
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__attribute__ ((unused)); \
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\
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static ElfW(Addr) \
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__dl_runtime_resolve (ElfW(Word) sym_index, \
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ElfW(Word) return_address, \
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ElfW(Addr) old_gpreg, \
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ElfW(Addr) stub_pc) \
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{ \
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struct link_map *l = elf_machine_runtime_link_map (old_gpreg, stub_pc); \
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const ElfW(Sym) *const symtab \
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= (const ElfW(Sym) *) (l->l_addr + l->l_info[DT_SYMTAB]->d_un.d_ptr); \
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const char *strtab \
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= (void *) (l->l_addr + l->l_info[DT_STRTAB]->d_un.d_ptr); \
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const ElfW(Addr) *got \
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= (const ElfW(Addr) *) (l->l_addr + l->l_info[DT_PLTGOT]->d_un.d_ptr); \
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const ElfW(Word) local_gotno \
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= (const ElfW(Word)) l->l_info[DT_MIPS (LOCAL_GOTNO)]->d_un.d_val; \
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const ElfW(Word) gotsym \
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= (const ElfW(Word)) l->l_info[DT_MIPS (GOTSYM)]->d_un.d_val; \
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const ElfW(Sym) *definer; \
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ElfW(Addr) loadbase; \
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ElfW(Addr) funcaddr; \
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struct link_map **scope; \
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\
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/* Look up the symbol's run-time value. */ \
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scope = _dl_object_relocation_scope (l); \
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definer = &symtab[sym_index]; \
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\
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loadbase = _dl_lookup_symbol (strtab + definer->st_name, &definer, \
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scope, l->l_name, ELF_MACHINE_RELOC_NOPLT); \
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\
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*_dl_global_scope_end = NULL; \
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\
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/* Apply the relocation with that value. */ \
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funcaddr = loadbase + definer->st_value; \
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*(got + local_gotno + sym_index - gotsym) = funcaddr; \
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\
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return funcaddr; \
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} \
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\
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asm ("\n \
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.text\n \
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.align 3\n \
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.globl _dl_runtime_resolve\n \
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.type _dl_runtime_resolve,@function\n \
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.ent _dl_runtime_resolve\n \
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_dl_runtime_resolve:\n \
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.set noreorder\n \
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# Save old GP to $3.\n \
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move $3,$28\n \
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# Modify t9 ($25) so as to point .cpload instruction.\n \
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daddu $25,2*8\n \
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# Compute GP.\n \
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.cpload $25\n \
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.set reorder\n \
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# Save slot call pc.\n \
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move $2, $31\n \
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# Save arguments and sp value in stack.\n \
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dsubu $29, 10*8\n \
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.cprestore 8*8\n \
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sd $15, 9*8($29)\n \
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sd $4, 3*8($29)\n \
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sd $5, 4*8($29)\n \
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sd $6, 5*8($29)\n \
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sd $7, 6*8($29)\n \
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sd $16, 7*8($29)\n \
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move $16, $29\n \
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move $4, $24\n \
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move $5, $15\n \
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move $6, $3\n \
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move $7, $2\n \
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jal __dl_runtime_resolve\n \
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move $29, $16\n \
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ld $31, 9*8($29)\n \
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ld $4, 3*8($29)\n \
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ld $5, 4*8($29)\n \
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ld $6, 5*8($29)\n \
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ld $7, 6*8($29)\n \
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ld $16, 7*8($29)\n \
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daddu $29, 10*8\n \
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move $25, $2\n \
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jr $25\n \
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.end _dl_runtime_resolve\n \
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");
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#else
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#define ELF_MACHINE_RUNTIME_TRAMPOLINE \
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/* The flag _dl_mips_gnu_objects is set if all dynamic objects are \
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generated by the gnu linker. */ \
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@ -550,7 +434,6 @@ _dl_runtime_resolve:\n \
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jr $25\n \
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.end _dl_runtime_resolve\n \
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");
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#endif
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/* Mask identifying addresses reserved for the user program,
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where the dynamic linker should not map anything. */
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@ -573,78 +456,6 @@ _dl_runtime_resolve:\n \
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2) That under Linux the entry is named __start
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and not just plain _start. */
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#ifdef __mips64
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#define RTLD_START asm ("\
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.text\n\
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.align 3\n"\
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_RTLD_PROLOGUE (ENTRY_POINT)\
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" .globl _dl_start_user\n\
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.set noreorder\n\
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bltzal $0, 0f\n\
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nop\n\
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0: .cpload $31\n\
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.set reorder\n\
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# i386 ABI book says that the first entry of GOT holds\n\
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# the address of the dynamic structure. Though MIPS ABI\n\
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# doesn't say nothing about this, I emulate this here.\n\
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dla $4, _DYNAMIC\n\
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sd $4, -0x7ff0($28)\n\
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move $4, $29\n\
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jal _dl_start\n\
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# Get the value of label '_dl_start_user' in t9 ($25).\n\
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dla $25, _dl_start_user\n\
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_dl_start_user:\n\
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.set noreorder\n\
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.cpload $25\n\
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.set reorder\n\
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move $16, $28\n\
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# Save the user entry point address in saved register.\n\
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move $17, $2\n\
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# See if we were run as a command with the executable file\n\
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# name as an extra leading argument.\n\
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ld $2, _dl_skip_args\n\
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beq $2, $0, 1f\n\
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# Load the original argument count.\n\
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ld $4, 0($29)\n\
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# Subtract _dl_skip_args from it.\n\
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dsubu $4, $2\n\
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# Adjust the stack pointer to skip _dl_skip_args words.\n\
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dsll $2,2\n\
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daddu $29, $2\n\
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# Save back the modified argument count.\n\
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sd $4, 0($29)\n\
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# Get _dl_default_scope[2] as argument in _dl_init_next call below.\n\
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1: dla $2, _dl_default_scope\n\
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ld $4, 2*8($2)\n\
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# Call _dl_init_next to return the address of an initializer\n\
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# function to run.\n\
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jal _dl_init_next\n\
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move $28, $16\n\
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# Check for zero return, when out of initializers.\n\
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beq $2, $0, 2f\n\
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# Call the shared object initializer function.\n\
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move $25, $2\n\
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ld $4, 0($29)\n\
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ld $5, 1*8($29)\n\
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ld $6, 2*8($29)\n\
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ld $7, 3*8($29)\n\
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jalr $25\n\
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move $28, $16\n\
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# Loop to call _dl_init_next for the next initializer.\n\
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b 1b\n\
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# Pass our finalizer function to the user in ra.\n\
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2: dla $31, _dl_fini\n\
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# Jump to the user entry point.\n\
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move $25, $17\n\
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ld $4, 0($29)\n\
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ld $5, 1*8($29)\n\
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ld $6, 2*8$29)\n\
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ld $7, 3*8($29)\n\
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jr $25\n"\
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_RTLD_EPILOGUE(ENTRY_POINT) \
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);
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#else
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#define RTLD_START asm ("\
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.text\n"\
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_RTLD_PROLOGUE(ENTRY_POINT)\
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@ -718,8 +529,7 @@ _dl_start_user:\n\
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lw $7, 12($29)\n\
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jr $25\n"\
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_RTLD_EPILOGUE(ENTRY_POINT)\
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");
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#endif
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);
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/* The MIPS never uses Elfxx_Rela relocations. */
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#define ELF_MACHINE_NO_RELA 1
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