diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/powerpc/dl-machine.c | 47 | ||||
| -rw-r--r-- | sysdeps/powerpc/elf/start.S | 3 |
2 files changed, 31 insertions, 19 deletions
diff --git a/sysdeps/powerpc/dl-machine.c b/sysdeps/powerpc/dl-machine.c index ca0a0dcd16..59626b3221 100644 --- a/sysdeps/powerpc/dl-machine.c +++ b/sysdeps/powerpc/dl-machine.c @@ -1,6 +1,5 @@ /* Machine-dependent ELF dynamic relocation functions. PowerPC version. - Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000 - Free Software Foundation, Inc. + Copyright (C) 1995,96,97,98,99,2000,2001 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -236,11 +235,11 @@ __elf_machine_runtime_setup (struct link_map *map, int lazy, int profile) /* This is the object we are looking for. Say that we really want profiling and the timers are started. */ _dl_profile_map = map; - + /* For the long entries, subtract off data_words. */ tramp[0] = OPCODE_ADDIS_HI (11, 11, -data_words); tramp[1] = OPCODE_ADDI (11, 11, -data_words); - + /* Multiply index of entry by 3 (in r11). */ tramp[2] = OPCODE_SLWI (12, 11, 1); tramp[3] = OPCODE_ADD (11, 12, 11); @@ -249,7 +248,7 @@ __elf_machine_runtime_setup (struct link_map *map, int lazy, int profile) /* Load address of link map in r12. */ tramp[4] = OPCODE_LI (12, (Elf32_Word) map); tramp[5] = OPCODE_ADDIS_HI (12, 12, (Elf32_Word) map); - + /* Call _dl_runtime_resolve. */ tramp[6] = OPCODE_BA (dlrr); } @@ -259,15 +258,15 @@ __elf_machine_runtime_setup (struct link_map *map, int lazy, int profile) tramp[4] = OPCODE_LI (12, dlrr); tramp[5] = OPCODE_ADDIS_HI (12, 12, dlrr); tramp[6] = OPCODE_MTCTR (12); - + /* Load address of link map in r12. */ tramp[7] = OPCODE_LI (12, (Elf32_Word) map); tramp[8] = OPCODE_ADDIS_HI (12, 12, (Elf32_Word) map); - + /* Call _dl_runtime_resolve. */ tramp[9] = OPCODE_BCTR (); } - + /* Set up the lazy PLT entries. */ offset = PLT_INITIAL_ENTRY_WORDS; i = 0; @@ -329,7 +328,7 @@ __elf_machine_fixup_plt(struct link_map *map, const Elf32_Rela *reloc, { Elf32_Word *plt, *data_words; Elf32_Word index, offset, num_plt_entries; - + num_plt_entries = (map->l_info[DT_PLTRELSZ]->d_un.d_val / sizeof(Elf32_Rela)); plt = (Elf32_Word *) D_PTR (map, l_info[DT_PLTGOT]); @@ -343,7 +342,7 @@ __elf_machine_fixup_plt(struct link_map *map, const Elf32_Rela *reloc, { data_words[index] = finaladdr; PPC_SYNC; - *reloc_addr = OPCODE_B ((PLT_LONGBRANCH_ENTRY_WORDS - (offset+1)) + *reloc_addr = OPCODE_B ((PLT_LONGBRANCH_ENTRY_WORDS - (offset+1)) * 4); } else @@ -368,13 +367,25 @@ __elf_machine_fixup_plt(struct link_map *map, const Elf32_Rela *reloc, static void dl_reloc_overflow (struct link_map *map, const char *name, - Elf32_Addr *const reloc_addr) + Elf32_Addr *const reloc_addr, + const Elf32_Sym *sym, + const Elf32_Sym *refsym) { char buffer[128]; char *t; + const Elf32_Sym *errsym = sym ?: refsym; t = stpcpy (buffer, name); t = stpcpy (t, " relocation at 0x00000000"); _itoa_word ((unsigned) reloc_addr, t, 16, 0); + if (errsym) + { + const char *strtab; + + strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]); + t = stpcpy (t, " for symbol `"); + t = stpcpy (t, strtab + errsym->st_name); + t = stpcpy (t, "'"); + } t = stpcpy (t, " out of range"); _dl_signal_error (0, map->l_name, buffer); } @@ -402,14 +413,14 @@ __process_machine_rela (struct link_map *map, case R_PPC_ADDR24: if (finaladdr > 0x01fffffc && finaladdr < 0xfe000000) - dl_reloc_overflow (map, "R_PPC_ADDR24", reloc_addr); + dl_reloc_overflow (map, "R_PPC_ADDR24", reloc_addr, sym, refsym); *reloc_addr = (*reloc_addr & 0xfc000003) | (finaladdr & 0x3fffffc); break; case R_PPC_ADDR16: case R_PPC_UADDR16: if (finaladdr > 0x7fff && finaladdr < 0x8000) - dl_reloc_overflow (map, "R_PPC_ADDR16", reloc_addr); + dl_reloc_overflow (map, "R_PPC_ADDR16", reloc_addr, sym, refsym); *(Elf32_Half*) reloc_addr = finaladdr; break; @@ -429,7 +440,7 @@ __process_machine_rela (struct link_map *map, case R_PPC_ADDR14_BRTAKEN: case R_PPC_ADDR14_BRNTAKEN: if (finaladdr > 0x7fff && finaladdr < 0x8000) - dl_reloc_overflow (map, "R_PPC_ADDR14", reloc_addr); + dl_reloc_overflow (map, "R_PPC_ADDR14", reloc_addr, sym, refsym); *reloc_addr = (*reloc_addr & 0xffff0003) | (finaladdr & 0xfffc); if (rinfo != R_PPC_ADDR14) *reloc_addr = ((*reloc_addr & 0xffdfffff) @@ -441,7 +452,7 @@ __process_machine_rela (struct link_map *map, { Elf32_Sword delta = finaladdr - (Elf32_Word) reloc_addr; if (delta << 6 >> 6 != delta) - dl_reloc_overflow (map, "R_PPC_REL14", reloc_addr); + dl_reloc_overflow (map, "R_PPC_REL14", reloc_addr, sym, refsym); *reloc_addr = (*reloc_addr & 0xfc000003) | (delta & 0x3fffffc); } break; @@ -485,7 +496,7 @@ __process_machine_rela (struct link_map *map, { Elf32_Word *plt, *data_words; Elf32_Word index, offset, num_plt_entries; - + plt = (Elf32_Word *) D_PTR (map, l_info[DT_PLTGOT]); offset = reloc_addr - plt; @@ -497,8 +508,8 @@ __process_machine_rela (struct link_map *map, data_words = plt + PLT_DATA_START_WORDS (num_plt_entries); data_words[index] = finaladdr; reloc_addr[0] = OPCODE_LI (11, index * 4); - reloc_addr[1] = OPCODE_B ((PLT_LONGBRANCH_ENTRY_WORDS - - (offset+1)) + reloc_addr[1] = OPCODE_B ((PLT_LONGBRANCH_ENTRY_WORDS + - (offset+1)) * 4); MODIFIED_CODE_NOQUEUE (reloc_addr + 1); } diff --git a/sysdeps/powerpc/elf/start.S b/sysdeps/powerpc/elf/start.S index 632505f13e..c3d85bbb17 100644 --- a/sysdeps/powerpc/elf/start.S +++ b/sysdeps/powerpc/elf/start.S @@ -1,5 +1,5 @@ /* Startup code for programs linked with GNU libc. - Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc. + Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -61,5 +61,6 @@ END(_start) /* Define a symbol for the first piece of initialized data. */ .section ".data" + .globl __data_start __data_start: weak_alias (__data_start, data_start) |