From: Nick Clifton Date: Tue, 17 Aug 2004 08:12:26 +0000 (+0000) Subject: (is_arm_mapping_symbol_name): New function - return true when a symbol name X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0367ecfb781c3eb834e5a6cd4e78df999d43aa18;p=binutils-gdb.git (is_arm_mapping_symbol_name): New function - return true when a symbol name matches the requirements for an ARM mapping symbol name. (arm_elf_find_function): New function based on elf_find_function in elf.c but skipping ARM mapping symbols and including thumb function symbols. (elf32_arm_find_nearest_line): Use arm_elf_find_function. (elf32_arm_output_symbol_hook): Use is_arm_mapping_symbol_name. --- diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 91250c003d6..a36f0f8225f 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,14 @@ +2004-08-17 Nick Clifton + + * (is_arm_mapping_symbol_name): New function - return true + when a symbol name matches the requirements for an ARM mapping + symbol name. + (arm_elf_find_function): New function based on + elf_find_function in elf.c but skipping ARM mapping symbols + and including thumb function symbols. + (elf32_arm_find_nearest_line): Use arm_elf_find_function. + (elf32_arm_output_symbol_hook): Use is_arm_mapping_symbol_name. + 2004-08-17 Alan Modra * elf64-ppc.c (ppc64_elf_branch_reloc): New function. diff --git a/bfd/elf32-arm.h b/bfd/elf32-arm.h index 53a722402e0..6fd68e6afc7 100644 --- a/bfd/elf32-arm.h +++ b/bfd/elf32-arm.h @@ -2993,46 +2993,31 @@ elf32_arm_check_relocs (bfd *abfd, struct bfd_link_info *info, return TRUE; } -/* Find the nearest line to a particular section and offset, for error - reporting. This code is a duplicate of the code in elf.c, except - that it also accepts STT_ARM_TFUNC as a symbol that names a function. */ - static bfd_boolean -elf32_arm_find_nearest_line (bfd * abfd, - asection * section, - asymbol ** symbols, - bfd_vma offset, - const char ** filename_ptr, - const char ** functionname_ptr, - unsigned int * line_ptr) +is_arm_mapping_symbol_name (const char * name) { - bfd_boolean found; - const char *filename; - asymbol *func; - bfd_vma low_func; - asymbol **p; - - if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, - filename_ptr, functionname_ptr, - line_ptr, 0, - &elf_tdata (abfd)->dwarf2_find_line_info)) - return TRUE; - - if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, - &found, filename_ptr, - functionname_ptr, line_ptr, - &elf_tdata (abfd)->line_info)) - return FALSE; + return (name != NULL) + && (name[0] == '$') + && ((name[1] == 'a') || (name[1] == 't') || (name[1] == 'd')) + && (name[2] == 0); +} - if (found) - return TRUE; +/* This is a copy of elf_find_function() from elf.c except that + ARM mapping symbols are ignored when looking for function names + and STT_ARM_TFUNC is considered to a function type. */ - if (symbols == NULL) - return FALSE; - - filename = NULL; - func = NULL; - low_func = 0; +static bfd_boolean +arm_elf_find_function (bfd * abfd ATTRIBUTE_UNUSED, + asection * section, + asymbol ** symbols, + bfd_vma offset, + const char ** filename_ptr, + const char ** functionname_ptr) +{ + const char * filename = NULL; + asymbol * func = NULL; + bfd_vma low_func = 0; + asymbol ** p; for (p = symbols; *p != NULL; p++) { @@ -3050,9 +3035,14 @@ elf32_arm_find_nearest_line (bfd * abfd, case STT_FILE: filename = bfd_asymbol_name (&q->symbol); break; - case STT_NOTYPE: case STT_FUNC: case STT_ARM_TFUNC: + /* Skip $a and $t symbols. */ + if ((q->symbol.flags & BSF_LOCAL) + && is_arm_mapping_symbol_name (q->symbol.name)) + continue; + /* Fall through. */ + case STT_NOTYPE: if (q->symbol.section == section && q->symbol.value >= low_func && q->symbol.value <= offset) @@ -3067,10 +3057,62 @@ elf32_arm_find_nearest_line (bfd * abfd, if (func == NULL) return FALSE; - *filename_ptr = filename; - *functionname_ptr = bfd_asymbol_name (func); - *line_ptr = 0; + if (filename_ptr) + *filename_ptr = filename; + if (functionname_ptr) + *functionname_ptr = bfd_asymbol_name (func); + + return TRUE; +} + + +/* Find the nearest line to a particular section and offset, for error + reporting. This code is a duplicate of the code in elf.c, except + that it uses arm_elf_find_function. */ + +static bfd_boolean +elf32_arm_find_nearest_line (bfd * abfd, + asection * section, + asymbol ** symbols, + bfd_vma offset, + const char ** filename_ptr, + const char ** functionname_ptr, + unsigned int * line_ptr) +{ + bfd_boolean found = FALSE; + + /* We skip _bfd_dwarf1_find_nearest_line since no known ARM toolchain uses it. */ + + if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, + filename_ptr, functionname_ptr, + line_ptr, 0, + & elf_tdata (abfd)->dwarf2_find_line_info)) + { + if (!*functionname_ptr) + arm_elf_find_function (abfd, section, symbols, offset, + *filename_ptr ? NULL : filename_ptr, + functionname_ptr); + return TRUE; + } + + if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, + & found, filename_ptr, + functionname_ptr, line_ptr, + & elf_tdata (abfd)->line_info)) + return FALSE; + + if (found && (*functionname_ptr || *line_ptr)) + return TRUE; + + if (symbols == NULL) + return FALSE; + + if (! arm_elf_find_function (abfd, section, symbols, offset, + filename_ptr, functionname_ptr)) + return FALSE; + + *line_ptr = 0; return TRUE; } @@ -3987,11 +4029,7 @@ elf32_arm_output_symbol_hook (struct bfd_link_info *info, return TRUE; /* We only want mapping symbols. */ - if (name == NULL - || name[0] != '$' - || (name[1] != 'a' - && name[1] != 't' - && name[1] != 'd')) + if (! is_arm_mapping_symbol_name (name)) return TRUE; mapcount = ++(elf32_arm_section_data (input_sec)->mapcount); @@ -4152,4 +4190,3 @@ elf32_arm_write_section (bfd *output_bfd ATTRIBUTE_UNUSED, asection *sec, #define elf_backend_got_header_size 12 #include "elf32-target.h" -