diff options
| author | Joakim Tjernlund <joakim.tjernlund@transmode.se> | 2005-03-10 16:29:22 +0000 |
|---|---|---|
| committer | Joakim Tjernlund <joakim.tjernlund@transmode.se> | 2005-03-10 16:29:22 +0000 |
| commit | f5794e1a317089f9316dc30f83fce12dccea0342 (patch) | |
| tree | 8bd00f15e80cccba0eef8937a7d31fa559ffae5b | |
| parent | 7d6643102b320429402eafe8b47badd4e0651a90 (diff) | |
Use DT_RELCONT_IDX to optimize the relocation of R_PPC_RELATIVE
relocs. All RELA arches can probably copy this. REL archs
will have to delete the "+ rpnt->r_addend" from the loop.
| -rw-r--r-- | ldso/ldso/powerpc/elfinterp.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/ldso/ldso/powerpc/elfinterp.c b/ldso/ldso/powerpc/elfinterp.c index 8175a0178..d3dd269fe 100644 --- a/ldso/ldso/powerpc/elfinterp.c +++ b/ldso/ldso/powerpc/elfinterp.c @@ -421,7 +421,7 @@ _dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope, int (*reloc_fnc) (struct elf_resolve *tpnt, struct dyn_elf *scope, ELF_RELOC *rpnt, Elf32_Sym *symtab, char *strtab)) { - unsigned int i; + unsigned int i, relative_count; char *strtab; Elf32_Sym *symtab; ELF_RELOC *rpnt; @@ -433,6 +433,18 @@ _dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope, symtab = (Elf32_Sym *)(intptr_t) (tpnt->dynamic_info[DT_SYMTAB] + tpnt->loadaddr); strtab = (char *) (tpnt->dynamic_info[DT_STRTAB] + tpnt->loadaddr); + + relative_count = tpnt->dynamic_info[DT_RELCONT_IDX]; + if (relative_count) { /* Optimize the R_PPC_RELATIVE relocations if possible */ + Elf32_Addr loadaddr = tpnt->loadaddr; + rel_size -= relative_count; + --rpnt; + do { /* PowerPC handles pre increment/decrement better */ + Elf32_Addr *const reloc_addr = (void *) (loadaddr + (++rpnt)->r_offset); + + *reloc_addr = loadaddr + rpnt->r_addend; + } while (--relative_count); + } for (i = 0; i < rel_size; i++, rpnt++) { int res; |