diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/dl-runtime.c | 38 |
1 files changed, 21 insertions, 17 deletions
diff --git a/elf/dl-runtime.c b/elf/dl-runtime.c index 56d2371..f92cbe2 100644 --- a/elf/dl-runtime.c +++ b/elf/dl-runtime.c @@ -52,7 +52,7 @@ function. */ #ifndef ELF_MACHINE_NO_PLT -ElfW(Addr) +DL_FIXUP_VALUE_TYPE __attribute ((noinline)) ARCH_FIXUP_ATTRIBUTE _dl_fixup ( # ifdef ELF_MACHINE_RUNTIME_FIXUP_ARGS @@ -71,7 +71,7 @@ _dl_fixup ( const ElfW(Sym) *sym = &symtab[ELFW(R_SYM) (reloc->r_info)]; void *const rel_addr = (void *)(l->l_addr + reloc->r_offset); lookup_t result; - ElfW(Addr) value; + DL_FIXUP_VALUE_TYPE value; /* Sanity check that we're really looking at a PLT relocation. */ assert (ELFW(R_TYPE)(reloc->r_info) == ELF_MACHINE_JMP_SLOT); @@ -99,13 +99,15 @@ _dl_fixup ( /* Currently result contains the base load address (or link map) of the object that defines sym. Now add in the symbol offset. */ - value = (sym ? LOOKUP_VALUE_ADDRESS (result) + sym->st_value : 0); + value = DL_FIXUP_MAKE_VALUE (result, + sym ? LOOKUP_VALUE_ADDRESS (result) + + sym->st_value : 0); } else { /* We already found the symbol. The module (and therefore its load address) is also known. */ - value = l->l_addr + sym->st_value; + value = DL_FIXUP_MAKE_VALUE (l, l->l_addr + sym->st_value); result = l; } @@ -122,7 +124,7 @@ _dl_fixup ( #if !defined PROF && !defined ELF_MACHINE_NO_PLT && !__BOUNDED_POINTERS__ -ElfW(Addr) +DL_FIXUP_VALUE_TYPE __attribute ((noinline)) ARCH_FIXUP_ATTRIBUTE _dl_profile_fixup ( #ifdef ELF_MACHINE_RUNTIME_FIXUP_ARGS @@ -137,10 +139,10 @@ _dl_profile_fixup ( relocations. */ struct reloc_result *reloc_result = &l->l_reloc_result[reloc_offset / sizeof (PLTREL)]; - ElfW(Addr) *resultp = &reloc_result->addr; + DL_FIXUP_VALUE_TYPE *resultp = &reloc_result->addr; - ElfW(Addr) value = *resultp; - if (value == 0) + DL_FIXUP_VALUE_TYPE value = *resultp; + if (DL_FIXUP_VALUE_CODE_ADDR (value) == 0) { /* This is the first time we have to relocate this object. */ const ElfW(Sym) *const symtab @@ -180,14 +182,16 @@ _dl_profile_fixup ( /* Currently result contains the base load address (or link map) of the object that defines sym. Now add in the symbol offset. */ - value = (defsym != NULL - ? LOOKUP_VALUE_ADDRESS (result) + defsym->st_value : 0); + value = DL_FIXUP_MAKE_VALUE (result, + defsym != NULL + ? LOOKUP_VALUE_ADDRESS (result) + + defsym->st_value : 0); } else { /* We already found the symbol. The module (and therefore its load address) is also known. */ - value = l->l_addr + refsym->st_value; + value = DL_FIXUP_MAKE_VALUE (l, l->l_addr + refsym->st_value); result = l; } /* And now perhaps the relocation addend. */ @@ -215,7 +219,7 @@ _dl_profile_fixup ( /* Synthesize a symbol record where the st_value field is the result. */ ElfW(Sym) sym = *defsym; - sym.st_value = value; + sym.st_value = DL_FIXUP_VALUE_ADDR (value); /* Keep track whether there is any interest in tracing the call in the lower two bits. */ @@ -268,7 +272,7 @@ _dl_profile_fixup ( } reloc_result->flags = altvalue; - value = sym.st_value; + value = DL_FIXUP_ADDR_VALUE (sym.st_value); } else /* Set all bits since this symbol binding is not interesting. */ @@ -287,7 +291,7 @@ _dl_profile_fixup ( #ifdef SHARED /* Auditing checkpoint: report the PLT entering and allow the auditors to change the value. */ - if (value != 0 && GLRO(dl_naudit) > 0 + if (DL_FIXUP_VALUE_CODE_ADDR (value) != 0 && GLRO(dl_naudit) > 0 /* Don't do anything if no auditor wants to intercept this call. */ && (reloc_result->enterexit & LA_SYMB_NOPLTENTER) == 0) { @@ -297,7 +301,7 @@ _dl_profile_fixup ( /* Set up the sym parameter. */ ElfW(Sym) sym = *defsym; - sym.st_value = value; + sym.st_value = DL_FIXUP_VALUE_ADDR (value); /* Get the symbol name. */ const char *strtab = (const void *) D_PTR (reloc_result->bound, @@ -352,14 +356,14 @@ _dl_profile_fixup ( afct = afct->next; } - value = sym.st_value; + value = DL_FIXUP_ADDR_VALUE (sym.st_value); } #endif /* Store the frame size information. */ *framesizep = framesize; - (*mcount_fct) (retaddr, value); + (*mcount_fct) (retaddr, DL_FIXUP_VALUE_CODE_ADDR (value)); return value; } |