From 1bf425384c5343049ac44e57e43140dde4086160 Mon Sep 17 00:00:00 2001 From: Jeff Law Date: Tue, 5 Mar 2002 17:55:55 +0000 Subject: [PATCH] 2002-02-26 John David Anglin * bfd/elf-hppa.h (elf_hppa_is_dynamic_loader_symbol): New function. (elf_hppa_relocate_section): Ignore undefined dynamic loader symbols. (elf_hppa_final_link_relocate): Correct relocations for indirect references to local data through the DLT. Fix .opd creation for local symbols using R_PARISC_LTOFF_FPTR32 and R_PARISC_FPTR64 relocations. Use e_lsel selector for R_PARISC_DLTIND21L, R_PARISC_LTOFF_FPTR21L and R_PARISC_LTOFF_TP21L as per "Processor-Specific ELF for PA_RISC, Version 1.43" document. Similarly, use e_rsel for DLT and LTOFF 'R' relocations. * bfd/elf32-hppa.c (final_link_relocate): Revise relocation selectors as per "Processor-Specific ELF for PA_RISC, Version 1.43" document. --- bfd/ChangeLog | 14 +++++++++ bfd/elf-hppa.h | 86 ++++++++++++++++++++++++++++++++++++++++++++------------ bfd/elf32-hppa.c | 18 ++++++++---- 3 files changed, 94 insertions(+), 24 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index a53bcbc..4d55723 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,17 @@ +2002-03-05 John David Anglin + + * elf-hppa.h (elf_hppa_is_dynamic_loader_symbol): New function. + (elf_hppa_relocate_section): Ignore undefined dynamic loader symbols. + (elf_hppa_final_link_relocate): Correct relocations for indirect + references to local data through the DLT. Fix .opd creation for + local symbols using R_PARISC_LTOFF_FPTR32 and R_PARISC_FPTR64 + relocations. Use e_lsel selector for R_PARISC_DLTIND21L, + R_PARISC_LTOFF_FPTR21L and R_PARISC_LTOFF_TP21L as per + "Processor-Specific ELF for PA_RISC, Version 1.43" document. + Similarly, use e_rsel for DLT and LTOFF 'R' relocations. + * elf32-hppa.c (final_link_relocate): Revise relocation selectors + as per "Processor-Specific ELF for PA_RISC, Version 1.43" document. + 2002-03-05 Jakub Jelinek * merge.c (_bfd_merge_sections): Don't segfault if there diff --git a/bfd/elf-hppa.h b/bfd/elf-hppa.h index a98c2b0..8e477bd 100644 --- a/bfd/elf-hppa.h +++ b/bfd/elf-hppa.h @@ -75,6 +75,9 @@ static boolean elf_hppa_unmark_useless_dynamic_symbols static boolean elf_hppa_remark_useless_dynamic_symbols PARAMS ((struct elf_link_hash_entry *, PTR)); +static boolean elf_hppa_is_dynamic_loader_symbol + PARAMS ((const char *)); + static void elf_hppa_record_segment_addrs PARAMS ((bfd *, asection *, PTR)); @@ -1136,6 +1139,23 @@ elf_hppa_remark_useless_dynamic_symbols (h, data) return true; } +static boolean +elf_hppa_is_dynamic_loader_symbol (name) + const char * name; +{ + return (! strcmp (name, "__CPU_REVISION") + || ! strcmp (name, "__CPU_KEYBITS_1") + || ! strcmp (name, "__SYSTEM_ID_D") + || ! strcmp (name, "__FPU_MODEL") + || ! strcmp (name, "__FPU_REVISION") + || ! strcmp (name, "__ARGC") + || ! strcmp (name, "__ARGV") + || ! strcmp (name, "__ENVP") + || ! strcmp (name, "__TLS_SIZE_D") + || ! strcmp (name, "__LOAD_INFO") + || ! strcmp (name, "__systab")); +} + /* Record the lowest address for the data and text segments. */ static void elf_hppa_record_segment_addrs (abfd, section, data) @@ -1419,11 +1439,17 @@ elf_hppa_relocate_section (output_bfd, info, input_bfd, input_section, relocation = 0; else { - if (!((*info->callbacks->undefined_symbol) - (info, h->root.root.string, input_bfd, - input_section, rel->r_offset, true))) - return false; - break; + /* Ignore dynamic loader defined symbols. */ + if (elf_hppa_is_dynamic_loader_symbol (h->root.root.string)) + relocation = 0; + else + { + if (!((*info->callbacks->undefined_symbol) + (info, h->root.root.string, input_bfd, + input_section, rel->r_offset, true))) + return false; + break; + } } } @@ -1620,11 +1646,7 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, a local function which had its address taken. */ if (dyn_h->h == NULL) { - bfd_put_64 (hppa_info->dlt_sec->owner, - value, - hppa_info->dlt_sec->contents + dyn_h->dlt_offset); - - /* Now handle .opd creation if needed. */ + /* Now do .opd creation if needed. */ if (r_type == R_PARISC_LTOFF_FPTR14R || r_type == R_PARISC_LTOFF_FPTR14DR || r_type == R_PARISC_LTOFF_FPTR14WR @@ -1638,7 +1660,7 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, 0, 16); /* The next word is the address of the function. */ - bfd_put_64 (hppa_info->opd_sec->owner, value, + bfd_put_64 (hppa_info->opd_sec->owner, value + addend, (hppa_info->opd_sec->contents + dyn_h->opd_offset + 16)); @@ -1648,7 +1670,17 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, bfd_put_64 (hppa_info->opd_sec->owner, value, (hppa_info->opd_sec->contents + dyn_h->opd_offset + 24)); + + /* The DLT value is the address of the .opd entry. */ + value = (dyn_h->opd_offset + + hppa_info->opd_sec->output_offset + + hppa_info->opd_sec->output_section->vma); + addend = 0; } + + bfd_put_64 (hppa_info->dlt_sec->owner, + value + addend, + hppa_info->dlt_sec->contents + dyn_h->dlt_offset); } /* We want the value of the DLT offset for this symbol, not @@ -1666,7 +1698,7 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, if (r_type == R_PARISC_DLTIND21L || r_type == R_PARISC_LTOFF_FPTR21L || r_type == R_PARISC_LTOFF_TP21L) - value = hppa_field_adjust (value, addend, e_lrsel); + value = hppa_field_adjust (value, 0, e_lsel); else if (r_type == R_PARISC_DLTIND14F || r_type == R_PARISC_LTOFF_FPTR16F || r_type == R_PARISC_LTOFF_FPTR16WF @@ -1677,9 +1709,9 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, || r_type == R_PARISC_LTOFF_TP16F || r_type == R_PARISC_LTOFF_TP16WF || r_type == R_PARISC_LTOFF_TP16DF) - value = hppa_field_adjust (value, addend, e_fsel); + value = hppa_field_adjust (value, 0, e_fsel); else - value = hppa_field_adjust (value, addend, e_rrsel); + value = hppa_field_adjust (value, 0, e_rsel); insn = elf_hppa_relocate_insn (insn, (int) value, r_type); break; @@ -1804,7 +1836,7 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, memset (hppa_info->opd_sec->contents + dyn_h->opd_offset, 0, 16); /* The next word is the address of the function. */ - bfd_put_64 (hppa_info->opd_sec->owner, value, + bfd_put_64 (hppa_info->opd_sec->owner, value + addend, (hppa_info->opd_sec->contents + dyn_h->opd_offset + 16)); @@ -1813,6 +1845,15 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, (hppa_info->opd_sec->output_section->owner); bfd_put_64 (hppa_info->opd_sec->owner, value, hppa_info->opd_sec->contents + dyn_h->opd_offset + 24); + + /* The DLT value is the address of the .opd entry. */ + value = (dyn_h->opd_offset + + hppa_info->opd_sec->output_offset + + hppa_info->opd_sec->output_section->vma); + + bfd_put_64 (hppa_info->dlt_sec->owner, + value, + hppa_info->dlt_sec->contents + dyn_h->dlt_offset); } /* We want the value of the DLT offset for this symbol, not @@ -1838,7 +1879,7 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, memset (hppa_info->opd_sec->contents + dyn_h->opd_offset, 0, 16); /* The next word is the address of the function. */ - bfd_put_64 (hppa_info->opd_sec->owner, value, + bfd_put_64 (hppa_info->opd_sec->owner, value + addend, (hppa_info->opd_sec->contents + dyn_h->opd_offset + 16)); @@ -1847,6 +1888,15 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, (hppa_info->opd_sec->output_section->owner); bfd_put_64 (hppa_info->opd_sec->owner, value, hppa_info->opd_sec->contents + dyn_h->opd_offset + 24); + + /* The DLT value is the address of the .opd entry. */ + value = (dyn_h->opd_offset + + hppa_info->opd_sec->output_offset + + hppa_info->opd_sec->output_section->vma); + + bfd_put_64 (hppa_info->dlt_sec->owner, + value, + hppa_info->dlt_sec->contents + dyn_h->dlt_offset); } /* We want the value of the DLT offset for this symbol, not @@ -1938,7 +1988,7 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, memset (hppa_info->opd_sec->contents + dyn_h->opd_offset, 0, 16); /* The next word is the address of the function. */ - bfd_put_64 (hppa_info->opd_sec->owner, value, + bfd_put_64 (hppa_info->opd_sec->owner, value + addend, (hppa_info->opd_sec->contents + dyn_h->opd_offset + 16)); @@ -1955,7 +2005,7 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, + hppa_info->opd_sec->output_offset + hppa_info->opd_sec->output_section->vma); - bfd_put_64 (input_bfd, value + addend, hit_data); + bfd_put_64 (input_bfd, value, hit_data); return bfd_reloc_ok; } diff --git a/bfd/elf32-hppa.c b/bfd/elf32-hppa.c index 1c0355e..74482f3 100644 --- a/bfd/elf32-hppa.c +++ b/bfd/elf32-hppa.c @@ -3471,21 +3471,27 @@ final_link_relocate (input_section, contents, rel, value, htab, sym_sec, h) r_field = e_fsel; break; - case R_PARISC_DIR21L: + case R_PARISC_DLTIND21L: case R_PARISC_PCREL21L: - case R_PARISC_DPREL21L: case R_PARISC_PLABEL21L: - case R_PARISC_DLTIND21L: + r_field = e_lsel; + break; + + case R_PARISC_DIR21L: + case R_PARISC_DPREL21L: r_field = e_lrsel; break; - case R_PARISC_DIR17R: case R_PARISC_PCREL17R: - case R_PARISC_DIR14R: case R_PARISC_PCREL14R: - case R_PARISC_DPREL14R: case R_PARISC_PLABEL14R: case R_PARISC_DLTIND14R: + r_field = e_rsel; + break; + + case R_PARISC_DIR17R: + case R_PARISC_DIR14R: + case R_PARISC_DPREL14R: r_field = e_rrsel; break; -- 2.7.4