diff options
Diffstat (limited to 'gdb/dwarf2read.c')
| -rw-r--r-- | gdb/dwarf2read.c | 323 |
1 files changed, 128 insertions, 195 deletions
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index 285eb6b..df60474 100644 --- a/gdb/dwarf2read.c +++ b/gdb/dwarf2read.c @@ -140,19 +140,34 @@ typedef struct statement_prologue } _STATEMENT_PROLOGUE; -/* offsets and sizes of debugging sections */ - -static unsigned int dwarf_info_size; -static unsigned int dwarf_abbrev_size; -static unsigned int dwarf_line_size; -static unsigned int dwarf_pubnames_size; -static unsigned int dwarf_aranges_size; -static unsigned int dwarf_loc_size; -static unsigned int dwarf_macinfo_size; -static unsigned int dwarf_str_size; -static unsigned int dwarf_ranges_size; -unsigned int dwarf_frame_size; -unsigned int dwarf_eh_frame_size; +static const struct objfile_data *dwarf2_objfile_data_key; + +struct dwarf2_per_objfile +{ + /* Sizes of debugging sections. */ + unsigned int info_size; + unsigned int abbrev_size; + unsigned int line_size; + unsigned int pubnames_size; + unsigned int aranges_size; + unsigned int loc_size; + unsigned int macinfo_size; + unsigned int str_size; + unsigned int ranges_size; + unsigned int frame_size; + unsigned int eh_frame_size; + + /* Loaded data from the sections. */ + char *info_buffer; + char *abbrev_buffer; + char *line_buffer; + char *str_buffer; + char *macinfo_buffer; + char *ranges_buffer; + char *loc_buffer; +}; + +static struct dwarf2_per_objfile *dwarf2_per_objfile; static asection *dwarf_info_section; static asection *dwarf_abbrev_section; @@ -315,7 +330,7 @@ struct line_header } *file_names; /* The start and end of the statement program following this - header. These point into dwarf_line_buffer. */ + header. These point into dwarf2_per_objfile->line_buffer. */ char *statement_program_start, *statement_program_end; }; @@ -436,15 +451,6 @@ static struct obstack dwarf2_tmp_obstack; #define DW_FIELD_ALLOC_CHUNK 4 #endif -/* Actually data from the sections. */ -static char *dwarf_info_buffer; -static char *dwarf_abbrev_buffer; -static char *dwarf_line_buffer; -static char *dwarf_str_buffer; -static char *dwarf_macinfo_buffer; -static char *dwarf_ranges_buffer; -static char *dwarf_loc_buffer; - /* A zeroed version of a partial die for initialization purposes. */ static struct partial_die_info zeroed_partial_die; @@ -458,87 +464,17 @@ static int isreg; /* Object lives in register. the register number. */ /* We put a pointer to this structure in the read_symtab_private field - of the psymtab. - - Most of the information in this structure is related to an entire - object file and could be passed via the sym_private field of the - objfile. It is possible to have both dwarf2 and some other form - of debug symbols in one object file. */ + of the psymtab. */ struct dwarf2_pinfo { - /* Pointer to start of dwarf info buffer for the objfile. */ - - char *dwarf_info_buffer; - - /* Offset in dwarf_info_buffer for this compilation unit. */ + /* Offset in .debug_info for this compilation unit. */ unsigned long dwarf_info_offset; - - /* Pointer to start of dwarf abbreviation buffer for the objfile. */ - - char *dwarf_abbrev_buffer; - - /* Size of dwarf abbreviation section for the objfile. */ - - unsigned int dwarf_abbrev_size; - - /* Pointer to start of dwarf line buffer for the objfile. */ - - char *dwarf_line_buffer; - - /* Size of dwarf_line_buffer, in bytes. */ - - unsigned int dwarf_line_size; - - /* Pointer to start of dwarf string buffer for the objfile. */ - - char *dwarf_str_buffer; - - /* Size of dwarf string section for the objfile. */ - - unsigned int dwarf_str_size; - - /* Pointer to start of dwarf macro buffer for the objfile. */ - - char *dwarf_macinfo_buffer; - - /* Size of dwarf macinfo section for the objfile. */ - - unsigned int dwarf_macinfo_size; - - /* Pointer to start of dwarf ranges buffer for the objfile. */ - - char *dwarf_ranges_buffer; - - /* Size of dwarf ranges buffer for the objfile. */ - - unsigned int dwarf_ranges_size; - - /* Pointer to start of dwarf locations buffer for the objfile. */ - - char *dwarf_loc_buffer; - - /* Size of dwarf locations buffer for the objfile. */ - - unsigned int dwarf_loc_size; }; #define PST_PRIVATE(p) ((struct dwarf2_pinfo *)(p)->read_symtab_private) -#define DWARF_INFO_BUFFER(p) (PST_PRIVATE(p)->dwarf_info_buffer) #define DWARF_INFO_OFFSET(p) (PST_PRIVATE(p)->dwarf_info_offset) -#define DWARF_ABBREV_BUFFER(p) (PST_PRIVATE(p)->dwarf_abbrev_buffer) -#define DWARF_ABBREV_SIZE(p) (PST_PRIVATE(p)->dwarf_abbrev_size) -#define DWARF_LINE_BUFFER(p) (PST_PRIVATE(p)->dwarf_line_buffer) -#define DWARF_LINE_SIZE(p) (PST_PRIVATE(p)->dwarf_line_size) -#define DWARF_STR_BUFFER(p) (PST_PRIVATE(p)->dwarf_str_buffer) -#define DWARF_STR_SIZE(p) (PST_PRIVATE(p)->dwarf_str_size) -#define DWARF_MACINFO_BUFFER(p) (PST_PRIVATE(p)->dwarf_macinfo_buffer) -#define DWARF_MACINFO_SIZE(p) (PST_PRIVATE(p)->dwarf_macinfo_size) -#define DWARF_RANGES_BUFFER(p) (PST_PRIVATE(p)->dwarf_ranges_buffer) -#define DWARF_RANGES_SIZE(p) (PST_PRIVATE(p)->dwarf_ranges_size) -#define DWARF_LOC_BUFFER(p) (PST_PRIVATE(p)->dwarf_loc_buffer) -#define DWARF_LOC_SIZE(p) (PST_PRIVATE(p)->dwarf_loc_size) /* FIXME: We might want to set this from BFD via bfd_arch_bits_per_byte, but this would require a corresponding change in unpack_field_as_long @@ -948,8 +884,16 @@ static char *skip_one_die (char *info_ptr, struct abbrev_info *abbrev, information and return true if we have enough to do something. */ int -dwarf2_has_info (bfd *abfd) +dwarf2_has_info (struct objfile *objfile) { + struct dwarf2_per_objfile *data; + + /* Initialize per-objfile state. */ + data = obstack_alloc (&objfile->objfile_obstack, sizeof (*data)); + memset (data, 0, sizeof (*data)); + set_objfile_data (objfile, dwarf2_objfile_data_key, data); + dwarf2_per_objfile = data; + dwarf_info_section = 0; dwarf_abbrev_section = 0; dwarf_line_section = 0; @@ -960,7 +904,7 @@ dwarf2_has_info (bfd *abfd) dwarf_ranges_section = 0; dwarf_loc_section = 0; - bfd_map_over_sections (abfd, dwarf2_locate_sections, NULL); + bfd_map_over_sections (objfile->obfd, dwarf2_locate_sections, NULL); return (dwarf_info_section != NULL && dwarf_abbrev_section != NULL); } @@ -973,47 +917,47 @@ dwarf2_locate_sections (bfd *ignore_abfd, asection *sectp, void *ignore_ptr) { if (strcmp (sectp->name, INFO_SECTION) == 0) { - dwarf_info_size = bfd_get_section_size_before_reloc (sectp); + dwarf2_per_objfile->info_size = bfd_get_section_size_before_reloc (sectp); dwarf_info_section = sectp; } else if (strcmp (sectp->name, ABBREV_SECTION) == 0) { - dwarf_abbrev_size = bfd_get_section_size_before_reloc (sectp); + dwarf2_per_objfile->abbrev_size = bfd_get_section_size_before_reloc (sectp); dwarf_abbrev_section = sectp; } else if (strcmp (sectp->name, LINE_SECTION) == 0) { - dwarf_line_size = bfd_get_section_size_before_reloc (sectp); + dwarf2_per_objfile->line_size = bfd_get_section_size_before_reloc (sectp); dwarf_line_section = sectp; } else if (strcmp (sectp->name, PUBNAMES_SECTION) == 0) { - dwarf_pubnames_size = bfd_get_section_size_before_reloc (sectp); + dwarf2_per_objfile->pubnames_size = bfd_get_section_size_before_reloc (sectp); dwarf_pubnames_section = sectp; } else if (strcmp (sectp->name, ARANGES_SECTION) == 0) { - dwarf_aranges_size = bfd_get_section_size_before_reloc (sectp); + dwarf2_per_objfile->aranges_size = bfd_get_section_size_before_reloc (sectp); dwarf_aranges_section = sectp; } else if (strcmp (sectp->name, LOC_SECTION) == 0) { - dwarf_loc_size = bfd_get_section_size_before_reloc (sectp); + dwarf2_per_objfile->loc_size = bfd_get_section_size_before_reloc (sectp); dwarf_loc_section = sectp; } else if (strcmp (sectp->name, MACINFO_SECTION) == 0) { - dwarf_macinfo_size = bfd_get_section_size_before_reloc (sectp); + dwarf2_per_objfile->macinfo_size = bfd_get_section_size_before_reloc (sectp); dwarf_macinfo_section = sectp; } else if (strcmp (sectp->name, STR_SECTION) == 0) { - dwarf_str_size = bfd_get_section_size_before_reloc (sectp); + dwarf2_per_objfile->str_size = bfd_get_section_size_before_reloc (sectp); dwarf_str_section = sectp; } else if (strcmp (sectp->name, FRAME_SECTION) == 0) { - dwarf_frame_size = bfd_get_section_size_before_reloc (sectp); + dwarf2_per_objfile->frame_size = bfd_get_section_size_before_reloc (sectp); dwarf_frame_section = sectp; } else if (strcmp (sectp->name, EH_FRAME_SECTION) == 0) @@ -1021,13 +965,13 @@ dwarf2_locate_sections (bfd *ignore_abfd, asection *sectp, void *ignore_ptr) flagword aflag = bfd_get_section_flags (ignore_abfd, sectp); if (aflag & SEC_HAS_CONTENTS) { - dwarf_eh_frame_size = bfd_get_section_size_before_reloc (sectp); + dwarf2_per_objfile->eh_frame_size = bfd_get_section_size_before_reloc (sectp); dwarf_eh_frame_section = sectp; } } else if (strcmp (sectp->name, RANGES_SECTION) == 0) { - dwarf_ranges_size = bfd_get_section_size_before_reloc (sectp); + dwarf2_per_objfile->ranges_size = bfd_get_section_size_before_reloc (sectp); dwarf_ranges_section = sectp; } } @@ -1037,37 +981,36 @@ dwarf2_locate_sections (bfd *ignore_abfd, asection *sectp, void *ignore_ptr) void dwarf2_build_psymtabs (struct objfile *objfile, int mainline) { - /* We definitely need the .debug_info and .debug_abbrev sections */ - dwarf_info_buffer = dwarf2_read_section (objfile, dwarf_info_section); - dwarf_abbrev_buffer = dwarf2_read_section (objfile, dwarf_abbrev_section); + dwarf2_per_objfile->info_buffer = dwarf2_read_section (objfile, dwarf_info_section); + dwarf2_per_objfile->abbrev_buffer = dwarf2_read_section (objfile, dwarf_abbrev_section); if (dwarf_line_section) - dwarf_line_buffer = dwarf2_read_section (objfile, dwarf_line_section); + dwarf2_per_objfile->line_buffer = dwarf2_read_section (objfile, dwarf_line_section); else - dwarf_line_buffer = NULL; + dwarf2_per_objfile->line_buffer = NULL; if (dwarf_str_section) - dwarf_str_buffer = dwarf2_read_section (objfile, dwarf_str_section); + dwarf2_per_objfile->str_buffer = dwarf2_read_section (objfile, dwarf_str_section); else - dwarf_str_buffer = NULL; + dwarf2_per_objfile->str_buffer = NULL; if (dwarf_macinfo_section) - dwarf_macinfo_buffer = dwarf2_read_section (objfile, + dwarf2_per_objfile->macinfo_buffer = dwarf2_read_section (objfile, dwarf_macinfo_section); else - dwarf_macinfo_buffer = NULL; + dwarf2_per_objfile->macinfo_buffer = NULL; if (dwarf_ranges_section) - dwarf_ranges_buffer = dwarf2_read_section (objfile, dwarf_ranges_section); + dwarf2_per_objfile->ranges_buffer = dwarf2_read_section (objfile, dwarf_ranges_section); else - dwarf_ranges_buffer = NULL; + dwarf2_per_objfile->ranges_buffer = NULL; if (dwarf_loc_section) - dwarf_loc_buffer = dwarf2_read_section (objfile, dwarf_loc_section); + dwarf2_per_objfile->loc_buffer = dwarf2_read_section (objfile, dwarf_loc_section); else - dwarf_loc_buffer = NULL; + dwarf2_per_objfile->loc_buffer = NULL; if (mainline || (objfile->global_psymbols.size == 0 @@ -1108,7 +1051,7 @@ dwarf2_build_psymtabs_easy (struct objfile *objfile, int mainline) pubnames_buffer = dwarf2_read_section (objfile, dwarf_pubnames_section); pubnames_ptr = pubnames_buffer; - while ((pubnames_ptr - pubnames_buffer) < dwarf_pubnames_size) + while ((pubnames_ptr - pubnames_buffer) < dwarf2_per_objfile->pubnames_size) { struct comp_unit_head cu_header; int bytes_read; @@ -1173,8 +1116,8 @@ dwarf2_build_psymtabs_hard (struct objfile *objfile, int mainline) struct cleanup *back_to; CORE_ADDR lowpc, highpc, baseaddr; - info_ptr = dwarf_info_buffer; - abbrev_ptr = dwarf_abbrev_buffer; + info_ptr = dwarf2_per_objfile->info_buffer; + abbrev_ptr = dwarf2_per_objfile->abbrev_buffer; /* We use dwarf2_tmp_obstack for objects that don't need to survive the partial symbol scan, like attribute values. @@ -1192,7 +1135,7 @@ dwarf2_build_psymtabs_hard (struct objfile *objfile, int mainline) 2) 30% of the attributes used the form DW_FORM_string. For DW_FORM_string, read_attribute simply hands back a pointer to - the null-terminated string in dwarf_info_buffer, so no dynamic + the null-terminated string in info_buffer, so no dynamic allocation is needed there either. 3) The remaining 1% of the attributes all used DW_FORM_block1. @@ -1207,20 +1150,21 @@ dwarf2_build_psymtabs_hard (struct objfile *objfile, int mainline) obstack_init (&dwarf2_tmp_obstack); back_to = make_cleanup (dwarf2_free_tmp_obstack, NULL); - /* Since the objects we're extracting from dwarf_info_buffer vary in + /* Since the objects we're extracting from .debug_info vary in length, only the individual functions to extract them (like read_comp_unit_head and read_partial_die) can really know whether the buffer is large enough to hold another complete object. - At the moment, they don't actually check that. If - dwarf_info_buffer holds just one extra byte after the last - compilation unit's dies, then read_comp_unit_head will happily - read off the end of the buffer. read_partial_die is similarly - casual. Those functions should be fixed. + At the moment, they don't actually check that. If .debug_info + holds just one extra byte after the last compilation unit's dies, + then read_comp_unit_head will happily read off the end of the + buffer. read_partial_die is similarly casual. Those functions + should be fixed. For this loop condition, simply checking whether there's any data left at all should be sufficient. */ - while (info_ptr < dwarf_info_buffer + dwarf_info_size) + while (info_ptr < (dwarf2_per_objfile->info_buffer + + dwarf2_per_objfile->info_size)) { struct cleanup *back_to_inner; struct dwarf2_cu cu; @@ -1234,25 +1178,25 @@ dwarf2_build_psymtabs_hard (struct objfile *objfile, int mainline) error ("Dwarf Error: wrong version in compilation unit header (is %d, should be %d) [in module %s]", cu.header.version, 2, bfd_get_filename (abfd)); return; } - if (cu.header.abbrev_offset >= dwarf_abbrev_size) + if (cu.header.abbrev_offset >= dwarf2_per_objfile->abbrev_size) { error ("Dwarf Error: bad offset (0x%lx) in compilation unit header (offset 0x%lx + 6) [in module %s]", (long) cu.header.abbrev_offset, - (long) (beg_of_comp_unit - dwarf_info_buffer), + (long) (beg_of_comp_unit - dwarf2_per_objfile->info_buffer), bfd_get_filename (abfd)); return; } if (beg_of_comp_unit + cu.header.length + cu.header.initial_length_size - > dwarf_info_buffer + dwarf_info_size) + > dwarf2_per_objfile->info_buffer + dwarf2_per_objfile->info_size) { error ("Dwarf Error: bad length (0x%lx) in compilation unit header (offset 0x%lx + 0) [in module %s]", (long) cu.header.length, - (long) (beg_of_comp_unit - dwarf_info_buffer), + (long) (beg_of_comp_unit - dwarf2_per_objfile->info_buffer), bfd_get_filename (abfd)); return; } /* Complete the cu_header */ - cu.header.offset = beg_of_comp_unit - dwarf_info_buffer; + cu.header.offset = beg_of_comp_unit - dwarf2_per_objfile->info_buffer; cu.header.first_die_ptr = info_ptr; cu.header.cu_head_ptr = beg_of_comp_unit; @@ -1278,20 +1222,7 @@ dwarf2_build_psymtabs_hard (struct objfile *objfile, int mainline) pst->read_symtab_private = (char *) obstack_alloc (&objfile->objfile_obstack, sizeof (struct dwarf2_pinfo)); - DWARF_INFO_BUFFER (pst) = dwarf_info_buffer; - DWARF_INFO_OFFSET (pst) = beg_of_comp_unit - dwarf_info_buffer; - DWARF_ABBREV_BUFFER (pst) = dwarf_abbrev_buffer; - DWARF_ABBREV_SIZE (pst) = dwarf_abbrev_size; - DWARF_LINE_BUFFER (pst) = dwarf_line_buffer; - DWARF_LINE_SIZE (pst) = dwarf_line_size; - DWARF_STR_BUFFER (pst) = dwarf_str_buffer; - DWARF_STR_SIZE (pst) = dwarf_str_size; - DWARF_MACINFO_BUFFER (pst) = dwarf_macinfo_buffer; - DWARF_MACINFO_SIZE (pst) = dwarf_macinfo_size; - DWARF_RANGES_BUFFER (pst) = dwarf_ranges_buffer; - DWARF_RANGES_SIZE (pst) = dwarf_ranges_size; - DWARF_LOC_BUFFER (pst) = dwarf_loc_buffer; - DWARF_LOC_SIZE (pst) = dwarf_loc_size; + DWARF_INFO_OFFSET (pst) = beg_of_comp_unit - dwarf2_per_objfile->info_buffer; baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile)); /* Store the function that reads in the rest of the symbol table */ @@ -1844,7 +1775,8 @@ skip_one_die (char *info_ptr, struct abbrev_info *abbrev, if (attr.form == DW_FORM_ref_addr) complaint (&symfile_complaints, "ignoring absolute DW_AT_sibling"); else - return dwarf_info_buffer + dwarf2_get_ref_die_offset (&attr, cu); + return dwarf2_per_objfile->info_buffer + + dwarf2_get_ref_die_offset (&attr, cu); } /* If it isn't DW_AT_sibling, skip this attribute. */ @@ -1985,22 +1917,12 @@ psymtab_to_symtab_1 (struct partial_symtab *pst) struct attribute *attr; CORE_ADDR baseaddr; + dwarf2_per_objfile = objfile_data (pst->objfile, dwarf2_objfile_data_key); + /* Set local variables from the partial symbol table info. */ offset = DWARF_INFO_OFFSET (pst); - dwarf_info_buffer = DWARF_INFO_BUFFER (pst); - dwarf_abbrev_buffer = DWARF_ABBREV_BUFFER (pst); - dwarf_abbrev_size = DWARF_ABBREV_SIZE (pst); - dwarf_line_buffer = DWARF_LINE_BUFFER (pst); - dwarf_line_size = DWARF_LINE_SIZE (pst); - dwarf_str_buffer = DWARF_STR_BUFFER (pst); - dwarf_str_size = DWARF_STR_SIZE (pst); - dwarf_macinfo_buffer = DWARF_MACINFO_BUFFER (pst); - dwarf_macinfo_size = DWARF_MACINFO_SIZE (pst); - dwarf_ranges_buffer = DWARF_RANGES_BUFFER (pst); - dwarf_ranges_size = DWARF_RANGES_SIZE (pst); - dwarf_loc_buffer = DWARF_LOC_BUFFER (pst); - dwarf_loc_size = DWARF_LOC_SIZE (pst); - info_ptr = dwarf_info_buffer + offset; + + info_ptr = dwarf2_per_objfile->info_buffer + offset; baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile)); /* We're in the global namespace. */ @@ -2538,14 +2460,14 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc, found_base = cu_header->base_known; base = cu_header->base_address; - if (offset >= dwarf_ranges_size) + if (offset >= dwarf2_per_objfile->ranges_size) { complaint (&symfile_complaints, "Offset %d out of bounds for DW_AT_ranges attribute", offset); return 0; } - buffer = dwarf_ranges_buffer + offset; + buffer = dwarf2_per_objfile->ranges_buffer + offset; /* Read in the largest possible address. */ marker = read_address (obfd, buffer, cu, &dummy); @@ -4390,7 +4312,7 @@ dwarf2_read_abbrevs (bfd *abfd, struct dwarf2_cu *cu) memset (cu->dwarf2_abbrevs, 0, ABBREV_HASH_SIZE * sizeof (struct abbrev_info *)); - abbrev_ptr = dwarf_abbrev_buffer + cu_header->abbrev_offset; + abbrev_ptr = dwarf2_per_objfile->abbrev_buffer + cu_header->abbrev_offset; abbrev_number = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read); abbrev_ptr += bytes_read; @@ -4448,8 +4370,8 @@ dwarf2_read_abbrevs (bfd *abfd, struct dwarf2_cu *cu) already read (which means we are about to read the abbreviations for the next compile unit) or if the end of the abbreviation table is reached. */ - if ((unsigned int) (abbrev_ptr - dwarf_abbrev_buffer) - >= dwarf_abbrev_size) + if ((unsigned int) (abbrev_ptr - dwarf2_per_objfile->abbrev_buffer) + >= dwarf2_per_objfile->abbrev_size) break; abbrev_number = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read); abbrev_ptr += bytes_read; @@ -4518,7 +4440,7 @@ read_partial_die (struct partial_die_info *part_die, bfd *abfd, error ("Dwarf Error: Could not find abbrev number %d [in module %s]", abbrev_number, bfd_get_filename (abfd)); } - part_die->offset = info_ptr - dwarf_info_buffer; + part_die->offset = info_ptr - dwarf2_per_objfile->info_buffer; part_die->tag = abbrev->tag; part_die->has_children = abbrev->has_children; part_die->abbrev = abbrev_number; @@ -4587,8 +4509,8 @@ read_partial_die (struct partial_die_info *part_die, bfd *abfd, if (attr.form == DW_FORM_ref_addr) complaint (&symfile_complaints, "ignoring absolute DW_AT_sibling"); else - part_die->sibling = - dwarf_info_buffer + dwarf2_get_ref_die_offset (&attr, cu); + part_die->sibling = dwarf2_per_objfile->info_buffer + + dwarf2_get_ref_die_offset (&attr, cu); break; default: break; @@ -4603,7 +4525,7 @@ read_partial_die (struct partial_die_info *part_die, bfd *abfd, struct partial_die_info spec_die; char *spec_ptr; - spec_ptr = dwarf_info_buffer + spec_ptr = dwarf2_per_objfile->info_buffer + dwarf2_get_ref_die_offset (&spec_attr, cu); read_partial_die (&spec_die, abfd, spec_ptr, cu); if (spec_die.name) @@ -4645,7 +4567,7 @@ read_full_die (struct die_info **diep, bfd *abfd, char *info_ptr, struct abbrev_info *abbrev; struct die_info *die; - offset = info_ptr - dwarf_info_buffer; + offset = info_ptr - dwarf2_per_objfile->info_buffer; abbrev_number = read_unsigned_leb128 (abfd, info_ptr, &bytes_read); info_ptr += bytes_read; if (!abbrev_number) @@ -5059,22 +4981,22 @@ read_indirect_string (bfd *abfd, char *buf, LONGEST str_offset = read_offset (abfd, buf, cu_header, (int *) bytes_read_ptr); - if (dwarf_str_buffer == NULL) + if (dwarf2_per_objfile->str_buffer == NULL) { error ("DW_FORM_strp used without .debug_str section [in module %s]", bfd_get_filename (abfd)); return NULL; } - if (str_offset >= dwarf_str_size) + if (str_offset >= dwarf2_per_objfile->str_size) { error ("DW_FORM_strp pointing outside of .debug_str section [in module %s]", bfd_get_filename (abfd)); return NULL; } gdb_assert (HOST_CHAR_BIT == 8); - if (dwarf_str_buffer[str_offset] == '\0') + if (dwarf2_per_objfile->str_buffer[str_offset] == '\0') return NULL; - return dwarf_str_buffer + str_offset; + return dwarf2_per_objfile->str_buffer + str_offset; } static unsigned long @@ -5318,8 +5240,8 @@ add_file_name (struct line_header *lh, /* Read the statement program header starting at OFFSET in - dwarf_line_buffer, according to the endianness of ABFD. Return a - pointer to a struct line_header, allocated using xmalloc. + .debug_line, according to the endianness of ABFD. Return a pointer + to a struct line_header, allocated using xmalloc. NOTE: the strings in the include directory and file name tables of the returned object point into debug_line_buffer, and must not be @@ -5335,7 +5257,7 @@ dwarf_decode_line_header (unsigned int offset, bfd *abfd, int i; char *cur_dir, *cur_file; - if (dwarf_line_buffer == NULL) + if (dwarf2_per_objfile->line_buffer == NULL) { complaint (&symfile_complaints, "missing .debug_line section"); return 0; @@ -5343,7 +5265,7 @@ dwarf_decode_line_header (unsigned int offset, bfd *abfd, /* Make sure that at least there's room for the total_length field. That could be 12 bytes long, but we're just going to fudge that. */ - if (offset + 4 >= dwarf_line_size) + if (offset + 4 >= dwarf2_per_objfile->line_size) { dwarf2_statement_list_fits_in_line_number_section_complaint (); return 0; @@ -5354,12 +5276,13 @@ dwarf_decode_line_header (unsigned int offset, bfd *abfd, back_to = make_cleanup ((make_cleanup_ftype *) free_line_header, (void *) lh); - line_ptr = dwarf_line_buffer + offset; + line_ptr = dwarf2_per_objfile->line_buffer + offset; /* read in the header */ lh->total_length = read_initial_length (abfd, line_ptr, NULL, &bytes_read); line_ptr += bytes_read; - if (line_ptr + lh->total_length > dwarf_line_buffer + dwarf_line_size) + if (line_ptr + lh->total_length > (dwarf2_per_objfile->line_buffer + + dwarf2_per_objfile->line_size)) { dwarf2_statement_list_fits_in_line_number_section_complaint (); return 0; @@ -5415,7 +5338,8 @@ dwarf_decode_line_header (unsigned int offset, bfd *abfd, line_ptr += bytes_read; lh->statement_program_start = line_ptr; - if (line_ptr > dwarf_line_buffer + dwarf_line_size) + if (line_ptr > (dwarf2_per_objfile->line_buffer + + dwarf2_per_objfile->line_size)) complaint (&symfile_complaints, "line number info header doesn't fit in `.debug_line' section"); @@ -8051,14 +7975,15 @@ dwarf_decode_macros (struct line_header *lh, unsigned int offset, char *mac_ptr, *mac_end; struct macro_source_file *current_file = 0; - if (dwarf_macinfo_buffer == NULL) + if (dwarf2_per_objfile->macinfo_buffer == NULL) { complaint (&symfile_complaints, "missing .debug_macinfo section"); return; } - mac_ptr = dwarf_macinfo_buffer + offset; - mac_end = dwarf_macinfo_buffer + dwarf_macinfo_size; + mac_ptr = dwarf2_per_objfile->macinfo_buffer + offset; + mac_end = dwarf2_per_objfile->macinfo_buffer + + dwarf2_per_objfile->macinfo_size; for (;;) { @@ -8205,8 +8130,8 @@ dwarf2_symbol_mark_computed (struct attribute *attr, struct symbol *sym, /* We don't know how long the location list is, but make sure we don't run off the edge of the section. */ - baton->size = dwarf_loc_size - DW_UNSND (attr); - baton->data = dwarf_loc_buffer + DW_UNSND (attr); + baton->size = dwarf2_per_objfile->loc_size - DW_UNSND (attr); + baton->data = dwarf2_per_objfile->loc_buffer + DW_UNSND (attr); baton->base_address = cu->header.base_address; if (cu->header.base_known == 0) complaint (&symfile_complaints, @@ -8227,9 +8152,9 @@ dwarf2_symbol_mark_computed (struct attribute *attr, struct symbol *sym, { /* Note that we're just copying the block's data pointer here, not the actual data. We're still pointing into the - dwarf_info_buffer for SYM's objfile; right now we never - release that buffer, but when we do clean up properly - this may need to change. */ + info_buffer for SYM's objfile; right now we never release + that buffer, but when we do clean up properly this may + need to change. */ baton->size = DW_BLOCK (attr)->size; baton->data = DW_BLOCK (attr)->data; } @@ -8245,3 +8170,11 @@ dwarf2_symbol_mark_computed (struct attribute *attr, struct symbol *sym, SYMBOL_LOCATION_BATON (sym) = baton; } } + +void _initialize_dwarf2_read (void); + +void +_initialize_dwarf2_read (void) +{ + dwarf2_objfile_data_key = register_objfile_data (); +} |