diff options
Diffstat (limited to 'ldso/ldso/xtensa/elfinterp.c')
-rw-r--r-- | ldso/ldso/xtensa/elfinterp.c | 114 |
1 files changed, 89 insertions, 25 deletions
diff --git a/ldso/ldso/xtensa/elfinterp.c b/ldso/ldso/xtensa/elfinterp.c index e38a02666..d97f23435 100644 --- a/ldso/ldso/xtensa/elfinterp.c +++ b/ldso/ldso/xtensa/elfinterp.c @@ -36,6 +36,13 @@ #include "tlsdeschtab.h" #endif +#ifdef __FDPIC__ +unsigned long +_dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry) +{ + return 0; +} +#else unsigned long _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry) { @@ -83,7 +90,7 @@ _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry) return (unsigned long) new_addr; } - +#endif static int _dl_parse (struct elf_resolve *tpnt, struct r_scope_elem *scope, @@ -145,8 +152,8 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, int reloc_type; int symtab_index; char *symname; -#if defined USE_TLS && USE_TLS - struct elf_resolve *tls_tpnt = NULL; +#if defined USE_TLS && USE_TLS || defined (__FDPIC__) + struct elf_resolve *def_mod = NULL; #endif struct symbol_ref sym_ref; ElfW(Addr) *reloc_addr; @@ -155,7 +162,7 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, ElfW(Addr) old_val; #endif - reloc_addr = (ElfW(Addr) *) (tpnt->loadaddr + rpnt->r_offset); + reloc_addr = (ElfW(Addr) *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset); reloc_type = ELF_R_TYPE (rpnt->r_info); symtab_index = ELF_R_SYM (rpnt->r_info); sym_ref.sym = &symtab[symtab_index]; @@ -164,9 +171,17 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, symname = strtab + sym_ref.sym->st_name; if (symtab_index) { - symbol_addr = (ElfW(Addr)) - _dl_find_hash (symname, scope, tpnt, - elf_machine_type_class (reloc_type), &sym_ref); + if (ELF_ST_BIND (sym_ref.sym->st_info) == STB_LOCAL) { + symbol_addr = (ElfW(Addr)) + DL_RELOC_ADDR(tpnt->loadaddr, + symtab[symtab_index].st_value); + sym_ref.tpnt = tpnt; + } else { + symbol_addr = (ElfW(Addr)) + _dl_find_hash (symname, scope, tpnt, + elf_machine_type_class (reloc_type), + &sym_ref); + } /* * We want to allow undefined references to weak symbols - this might @@ -182,13 +197,13 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, _dl_debug_lookup (symname, tpnt, &symtab[symtab_index], &sym_ref, elf_machine_type_class(reloc_type)); } -#if defined USE_TLS && USE_TLS - tls_tpnt = sym_ref.tpnt; +#if defined USE_TLS && USE_TLS || defined (__FDPIC__) + def_mod = sym_ref.tpnt; #endif } else { symbol_addr =symtab[symtab_index].st_value; -#if defined USE_TLS && USE_TLS - tls_tpnt = tpnt; +#if defined USE_TLS && USE_TLS || defined (__FDPIC__) + def_mod = tpnt; #endif } @@ -202,6 +217,7 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, case R_XTENSA_GLOB_DAT: case R_XTENSA_JMP_SLOT: + case R_XTENSA_SYM32: *reloc_addr = symbol_addr + rpnt->r_addend; break; @@ -219,19 +235,63 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, break; case R_XTENSA_RELATIVE: - *reloc_addr += tpnt->loadaddr + rpnt->r_addend; + *reloc_addr += DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_addend); break; +#ifdef __FDPIC__ + case R_XTENSA_FUNCDESC_VALUE: + { + struct funcdesc_value *dst = (struct funcdesc_value *) reloc_addr; + + dst->entry_point = (void *) (symbol_addr + rpnt->r_addend); + dst->got_value = def_mod->loadaddr.got_value; + } + break; + case R_XTENSA_FUNCDESC: + if (symbol_addr) + *reloc_addr = (unsigned long) + _dl_funcdesc_for((void *) (symbol_addr + rpnt->r_addend), + sym_ref.tpnt->loadaddr.got_value); + else + /* Relocation against an undefined weak symbol: + set funcdesc to zero. */ + *reloc_addr = 0; + break; + case R_XTENSA_TLS_TPOFF: + CHECK_STATIC_TLS((struct link_map *) def_mod); + *reloc_addr = symbol_addr + rpnt->r_addend + def_mod->l_tls_offset; + break; + case R_XTENSA_TLSDESC: + { + struct tlsdesc *td = (struct tlsdesc *) reloc_addr; +#ifndef SHARED + CHECK_STATIC_TLS((struct link_map *) def_mod); +#else + if (!TRY_STATIC_TLS ((struct link_map *) def_mod)) + { + td->entry = _dl_tlsdesc_dynamic; + td->argument = _dl_make_tlsdesc_dynamic((struct link_map *) def_mod, + symbol_addr + rpnt->r_addend); + } + else +#endif + { + td->entry = _dl_tlsdesc_return; + td->argument = (void *) (symbol_addr + rpnt->r_addend + def_mod->l_tls_offset); + } + } + break; +#else #if defined USE_TLS && USE_TLS case R_XTENSA_TLS_TPOFF: - CHECK_STATIC_TLS((struct link_map *) tls_tpnt); - *reloc_addr = symbol_addr + tls_tpnt->l_tls_offset + rpnt->r_addend; + CHECK_STATIC_TLS((struct link_map *) def_mod); + *reloc_addr = symbol_addr + rpnt->r_addend + def_mod->l_tls_offset; break; case R_XTENSA_TLSDESC_FN: #ifndef SHARED - CHECK_STATIC_TLS((struct link_map *) tls_tpnt); + CHECK_STATIC_TLS((struct link_map *) def_mod); #else - if (!TRY_STATIC_TLS ((struct link_map *) tls_tpnt)) + if (!TRY_STATIC_TLS ((struct link_map *) def_mod)) *reloc_addr = (ElfW(Addr)) _dl_tlsdesc_dynamic; else #endif @@ -239,25 +299,25 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, break; case R_XTENSA_TLSDESC_ARG: #ifndef SHARED - CHECK_STATIC_TLS((struct link_map *) tls_tpnt); + CHECK_STATIC_TLS((struct link_map *) def_mod); #else - if (!TRY_STATIC_TLS ((struct link_map *) tls_tpnt)) + if (!TRY_STATIC_TLS ((struct link_map *) def_mod)) *reloc_addr = (ElfW(Addr)) - _dl_make_tlsdesc_dynamic((struct link_map *) tls_tpnt, + _dl_make_tlsdesc_dynamic((struct link_map *) def_mod, symbol_addr + rpnt->r_addend); else #endif *reloc_addr = symbol_addr + rpnt->r_addend + - tls_tpnt->l_tls_offset; + def_mod->l_tls_offset; break; #endif - +#endif default: return -1; /* Calls _dl_exit(1). */ } #if defined (__SUPPORT_LD_DEBUG__) if (_dl_debug_reloc && _dl_debug_detail) - _dl_dprintf (_dl_debug_file, "\tpatched: %x ==> %x @ %x\n", + _dl_dprintf (_dl_debug_file, "\tpatched: %x ==> %x @ %p\n", old_val, *reloc_addr, reloc_addr); #endif @@ -275,7 +335,7 @@ _dl_do_lazy_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, ElfW(Addr) old_val; #endif - reloc_addr = (ElfW(Addr) *) (tpnt->loadaddr + rpnt->r_offset); + reloc_addr = (ElfW(Addr) *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset); reloc_type = ELF_R_TYPE (rpnt->r_info); #if defined (__SUPPORT_LD_DEBUG__) @@ -286,7 +346,7 @@ _dl_do_lazy_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, case R_XTENSA_JMP_SLOT: /* Perform a RELATIVE reloc on the GOT entry that transfers to the stub function. */ - *reloc_addr += tpnt->loadaddr; + *reloc_addr = DL_RELOC_ADDR(tpnt->loadaddr, *reloc_addr); break; case R_XTENSA_NONE: break; @@ -296,7 +356,7 @@ _dl_do_lazy_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, #if defined (__SUPPORT_LD_DEBUG__) if (_dl_debug_reloc && _dl_debug_detail) - _dl_dprintf (_dl_debug_file, "\tpatched: %x ==> %x @ %x\n", + _dl_dprintf (_dl_debug_file, "\tpatched: %x ==> %x @ %p\n", old_val, *reloc_addr, reloc_addr); #endif return 0; @@ -320,3 +380,7 @@ _dl_parse_relocation_information (struct dyn_elf *rpnt, return _dl_parse (rpnt->dyn, scope, rel_addr, rel_size, _dl_do_reloc); } + +#ifndef IS_IN_libdl +# include "../../libc/sysdeps/linux/xtensa/crtreloc.c" +#endif |