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* sysdeps/mips/dl-machine.h (elf_machine_dynamic): New function.

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(elf_machine_got): Removed, not needed anymore.
	(ELF_MACHINE_RELOC_NOPLT): Removed.
	(ELF_MACHINE_JMP_SLOT): Added.
	(_RTLD_PROLOGUE): We use gcc, no need to check for __STDC__.
	(_RTLD_EPILOGUE): Likewise.
	(RESOLVE_GOTSYM): Use R_MIPS_REL32.
	(ELF_MACHINE_RUNTIME_TRAMPOLINE): Likewise.
	Based on patches from Maciej W. Rozycki <macro@ds2.pg.gda.pl> and
	Ralf Baechle <baechle@uni-koblenz.de>.
This commit is contained in:
Andreas Jaeger 1999-11-23 15:49:22 +00:00
parent ccae44c2e6
commit 58f68573b9
1 changed files with 16 additions and 23 deletions
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39
sysdeps/mips/dl-machine.h
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@ -32,25 +32,19 @@
#endif
#ifndef _RTLD_PROLOGUE
#ifdef __STDC__
#define _RTLD_PROLOGUE(entry) "\n\t.globl " #entry \
"\n\t.ent " #entry \
"\n\t" #entry ":\n\t"
#else
#define _RTLD_PROLOGUE(entry) "\n\t.globl entry\n\t.ent entry\n\t entry:\n\t"
#endif
# define _RTLD_PROLOGUE(entry) "\n\t.globl " #entry \
"\n\t.ent " #entry \
"\n\t" #entry ":\n\t"
#endif
#ifndef _RTLD_EPILOGUE
#ifdef __STDC__
#define _RTLD_EPILOGUE(entry) "\t.end " #entry "\n"
#else
#define _RTLD_EPILOGUE(entry) "\t.end entry\n"
#endif
# define _RTLD_EPILOGUE(entry) "\t.end " #entry "\n"
#endif
/* I have no idea what I am doing. */
#define ELF_MACHINE_RELOC_NOPLT -1
/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries.
This makes no sense on MIPS but we have to define this to R_MIPS_REL32
to avoid the asserts in dl-lookup.c from blowing. */
#define ELF_MACHINE_JMP_SLOT R_MIPS_REL32
#define elf_machine_lookup_noplt_p(type) (1)
#define elf_machine_lookup_noexec_p(type) (0)
@ -104,14 +98,13 @@ elf_mips_got_from_gpreg (ElfW(Addr) gpreg)
return (ElfW(Addr) *) (gpreg - 0x7ff0);
}
/* Return the run-time address of the _GLOBAL_OFFSET_TABLE_.
Must be inlined in a function which uses global data. */
static inline ElfW(Addr) *
elf_machine_got (void)
/* Return the link-time address of _DYNAMIC. Conveniently, this is the
first element of the GOT. This must be inlined in a function which
uses global data. */
static inline ElfW(Addr)
elf_machine_dynamic (void)
{
ElfW(Addr) gp;
__asm__ __volatile__("move %0, $28\n\t" : "=r" (gp));
register ElfW(Addr) gp __asm__ ("$28");
return elf_mips_got_from_gpreg (gp);
}
@ -151,7 +144,7 @@ elf_machine_got_rel (struct link_map *map, int lazy)
ElfW(Addr) sym_loadaddr; \
sym_loadaddr = _dl_lookup_symbol (strtab + sym->st_name, &ref, \
map->l_scope, \
map->l_name, ELF_MACHINE_RELOC_NOPLT);\
map->l_name, R_MIPS_REL32);\
(ref)? sym_loadaddr + ref->st_value: 0; \
})
@ -361,7 +354,7 @@ __dl_runtime_resolve (ElfW(Word) sym_index, \
\
loadbase = _dl_lookup_symbol (strtab + definer->st_name, &definer, \
l->l_scope, l->l_name, \
ELF_MACHINE_RELOC_NOPLT); \
R_MIPS_REL32); \
\
/* Apply the relocation with that value. */ \
funcaddr = loadbase + definer->st_value; \