forked from Imagelibrary/binutils-gdb
* dwarf.c: #include "bfd_stdint.h".
(do_gdb_index): New global. (display_gdb_index): New function. (dwarf_select_sections_by_names) Add "gdb_index". (dwarf_select_sections_all): Set do_gdb_index. (debug_displays): Add .gdb_index. * dwarf.h (do_gdb_index): Declare. * objdump.c (usage): Add gdb_index. * readelf.c (usage): Add gdb_index. (process_section_headers): Process ".gdb_index". * doc/binutils.texi (readelf): Document gdb_index dump. (objdump): Ditto.
This commit is contained in:
Doug Evans
136
binutils/dwarf.c
136
binutils/dwarf.c
@@ -22,6 +22,7 @@
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#include "sysdep.h"
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#include "libiberty.h"
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#include "bfd.h"
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#include "bfd_stdint.h"
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#include "bucomm.h"
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#include "elfcomm.h"
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#include "elf/common.h"
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@@ -56,6 +57,7 @@ int do_debug_frames_interp;
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int do_debug_macinfo;
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int do_debug_str;
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int do_debug_loc;
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int do_gdb_index;
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int do_trace_info;
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int do_trace_abbrevs;
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int do_trace_aranges;
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@@ -4862,6 +4864,135 @@ display_debug_frames (struct dwarf_section *section,
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#undef LEB
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#undef SLEB
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static int
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display_gdb_index (struct dwarf_section *section,
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void *file ATTRIBUTE_UNUSED)
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{
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unsigned char *start = section->start;
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uint32_t version;
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uint32_t cu_list_offset, tu_list_offset;
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uint32_t address_table_offset, symbol_table_offset, constant_pool_offset;
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unsigned int cu_list_elements, tu_list_elements;
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unsigned int address_table_size, symbol_table_slots;
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unsigned char *cu_list, *tu_list;
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unsigned char *address_table, *symbol_table, *constant_pool;
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unsigned int i;
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/* The documentation for the format of this file is in gdb/dwarf2read.c. */
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printf (_("Contents of the %s section:\n"), section->name);
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if (section->size < 6 * sizeof (uint32_t))
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{
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warn (_("Truncated header in the %s section.\n"), section->name);
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return 0;
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}
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version = byte_get_little_endian (start, 4);
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printf (_("Version %d\n"), version);
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/* Prior versions are obsolete, and future versions may not be
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backwards compatible. */
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if (version != 3)
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{
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warn (_("Unsupported version %u.\n"), version);
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return 0;
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}
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cu_list_offset = byte_get_little_endian (start + 4, 4);
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tu_list_offset = byte_get_little_endian (start + 8, 4);
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address_table_offset = byte_get_little_endian (start + 12, 4);
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symbol_table_offset = byte_get_little_endian (start + 16, 4);
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constant_pool_offset = byte_get_little_endian (start + 20, 4);
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if (cu_list_offset > section->size
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|| tu_list_offset > section->size
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|| address_table_offset > section->size
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|| symbol_table_offset > section->size
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|| constant_pool_offset > section->size)
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{
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warn (_("Corrupt header in the %s section.\n"), section->name);
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return 0;
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}
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cu_list_elements = (tu_list_offset - cu_list_offset) / 8;
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tu_list_elements = (address_table_offset - tu_list_offset) / 8;
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address_table_size = symbol_table_offset - address_table_offset;
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symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8;
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cu_list = start + cu_list_offset;
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tu_list = start + tu_list_offset;
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address_table = start + address_table_offset;
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symbol_table = start + symbol_table_offset;
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constant_pool = start + constant_pool_offset;
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printf (_("\nCU table:\n"));
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for (i = 0; i < cu_list_elements; i += 2)
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{
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uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8);
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uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8);
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printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2,
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(unsigned long) cu_offset,
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(unsigned long) (cu_offset + cu_length - 1));
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}
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printf (_("\nTU table:\n"));
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for (i = 0; i < tu_list_elements; i += 3)
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{
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uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8);
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uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8);
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uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8);
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printf (_("[%3u] 0x%lx 0x%lx "), i / 3,
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(unsigned long) tu_offset,
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(unsigned long) type_offset);
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print_dwarf_vma (signature, 8);
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printf ("\n");
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}
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printf (_("\nAddress table:\n"));
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for (i = 0; i < address_table_size; i += 2 * 8 + 4)
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{
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uint64_t low = byte_get_little_endian (address_table + i, 8);
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uint64_t high = byte_get_little_endian (address_table + i + 8, 8);
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uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4);
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print_dwarf_vma (low, 8);
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print_dwarf_vma (high, 8);
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printf (_("%u\n"), cu_index);
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}
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printf (_("\nSymbol table:\n"));
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for (i = 0; i < symbol_table_slots; ++i)
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{
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uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4);
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uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4);
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uint32_t num_cus, cu;
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if (name_offset != 0
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|| cu_vector_offset != 0)
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{
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unsigned int j;
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printf ("[%3u] %s:", i, constant_pool + name_offset);
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num_cus = byte_get_little_endian (constant_pool + cu_vector_offset, 4);
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for (j = 0; j < num_cus; ++j)
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{
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cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4);
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/* Convert to TU number if it's for a type unit. */
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if (cu >= cu_list_elements)
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printf (" T%u", cu - cu_list_elements);
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else
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printf (" %u", cu);
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}
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printf ("\n");
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}
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}
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return 1;
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}
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static int
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display_debug_not_supported (struct dwarf_section *section,
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void *file ATTRIBUTE_UNUSED)
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@@ -4965,6 +5096,8 @@ dwarf_select_sections_by_names (const char *names)
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with earlier versions of readelf. */
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{ "ranges", & do_debug_aranges, 1 },
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{ "str", & do_debug_str, 1 },
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/* The special .gdb_index section. */
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{ "gdb_index", & do_gdb_index, 1 },
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/* These trace_* sections are used by Itanium VMS. */
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{ "trace_abbrev", & do_trace_abbrevs, 1 },
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{ "trace_aranges", & do_trace_aranges, 1 },
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@@ -5089,6 +5222,7 @@ dwarf_select_sections_all (void)
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do_debug_macinfo = 1;
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do_debug_str = 1;
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do_debug_loc = 1;
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do_gdb_index = 1;
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do_trace_info = 1;
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do_trace_abbrevs = 1;
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do_trace_aranges = 1;
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@@ -5128,6 +5262,8 @@ struct dwarf_section_display debug_displays[] =
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display_debug_types, &do_debug_info, 1 },
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{ { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0 },
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display_debug_not_supported, NULL, 0 },
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{ { ".gdb_index", "", NULL, NULL, 0, 0 },
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display_gdb_index, &do_gdb_index, 0 },
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{ { ".trace_info", "", NULL, NULL, 0, 0 },
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display_trace_info, &do_trace_info, 1 },
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{ { ".trace_abbrev", "", NULL, NULL, 0, 0 },
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