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Diffstat (limited to 'binutils/readelf.c')
-rw-r--r--binutils/readelf.c3839
1 files changed, 40 insertions, 3799 deletions
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 7da3966..5f738c9 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -55,12 +55,11 @@
#define BFD64
#endif
-#include "bfd.h"
+#include "dwarf.h"
#include "elf/common.h"
#include "elf/external.h"
#include "elf/internal.h"
-#include "elf/dwarf2.h"
/* The following headers use the elf/reloc-macros.h file to
automatically generate relocation recognition functions
@@ -157,24 +156,9 @@ static int do_version;
static int do_wide;
static int do_histogram;
static int do_debugging;
-static int do_debug_info;
-static int do_debug_abbrevs;
-static int do_debug_lines;
-static int do_debug_pubnames;
-static int do_debug_aranges;
-static int do_debug_ranges;
-static int do_debug_frames;
-static int do_debug_frames_interp;
-static int do_debug_macinfo;
-static int do_debug_str;
-static int do_debug_loc;
static int do_arch;
static int do_notes;
static int is_32bit_elf;
-static int is_relocatable;
-static int have_frame_base;
-static int need_base_address;
-static bfd_vma eh_addr_size;
struct group_list
{
@@ -222,7 +206,6 @@ typedef enum print_mode
}
print_mode;
-static bfd_vma (*byte_get) (unsigned char *, int);
static void (*byte_put) (unsigned char *, bfd_vma, int);
#define UNKNOWN -1
@@ -266,58 +249,6 @@ static void (*byte_put) (unsigned char *, bfd_vma, int);
#define streq(a,b) (strcmp ((a), (b)) == 0)
#define strneq(a,b,n) (strncmp ((a), (b), (n)) == 0)
-static void ATTRIBUTE_PRINTF_1
-error (const char *message, ...)
-{
- va_list args;
-
- va_start (args, message);
- fprintf (stderr, _("%s: Error: "), program_name);
- vfprintf (stderr, message, args);
- va_end (args);
-}
-
-static void ATTRIBUTE_PRINTF_1
-warn (const char *message, ...)
-{
- va_list args;
-
- va_start (args, message);
- fprintf (stderr, _("%s: Warning: "), program_name);
- vfprintf (stderr, message, args);
- va_end (args);
-}
-
-static void *
-cmalloc (size_t nmemb, size_t size)
-{
- /* Check for overflow. */
- if (nmemb >= ~(size_t) 0 / size)
- return NULL;
- else
- return malloc (nmemb * size);
-}
-
-static void *
-xcmalloc (size_t nmemb, size_t size)
-{
- /* Check for overflow. */
- if (nmemb >= ~(size_t) 0 / size)
- return NULL;
- else
- return xmalloc (nmemb * size);
-}
-
-static void *
-xcrealloc (void *ptr, size_t nmemb, size_t size)
-{
- /* Check for overflow. */
- if (nmemb >= ~(size_t) 0 / size)
- return NULL;
- else
- return xrealloc (ptr, nmemb * size);
-}
-
static void *
get_data (void *var, FILE *file, long offset, size_t size, size_t nmemb,
const char *reason)
@@ -7363,51 +7294,6 @@ dump_section (Elf_Internal_Shdr *section, FILE *file)
return 1;
}
-
-struct dwarf_section
-{
- const char *name;
- unsigned char *start;
- bfd_vma address;
- bfd_size_type size;
-};
-
-static int process_debug_info (struct dwarf_section *, void *, int);
-
-static void
-load_debug_section (struct dwarf_section *section, void *file)
-{
- Elf_Internal_Shdr *sec;
- char buf [64];
-
- /* If it is already loaded, do nothing. */
- if (section->start != NULL)
- return;
-
- /* Locate the debug section. */
- sec = find_section (section->name);
- if (sec == NULL)
- return;
-
- snprintf (buf, sizeof (buf), _("%s section data"), section->name);
- section->address = sec->sh_addr;
- section->size = sec->sh_size;
- section->start = get_data (NULL, file, sec->sh_offset, 1,
- sec->sh_size, buf);
-}
-
-static void
-free_debug_section (struct dwarf_section *section)
-{
- if (section->start == NULL)
- return;
-
- free ((char *) section->start);
- section->start = NULL;
- section->address = 0;
- section->size = 0;
-}
-
/* Apply addends of RELA relocations. */
static int
@@ -7517,3664 +7403,47 @@ debug_apply_rela_addends (void *file,
return 1;
}
-static bfd_vma
-byte_get_little_endian (unsigned char *field, int size)
-{
- switch (size)
- {
- case 1:
- return *field;
-
- case 2:
- return ((unsigned int) (field[0]))
- | (((unsigned int) (field[1])) << 8);
-
-#ifndef BFD64
- case 8:
- /* We want to extract data from an 8 byte wide field and
- place it into a 4 byte wide field. Since this is a little
- endian source we can just use the 4 byte extraction code. */
- /* Fall through. */
-#endif
- case 4:
- return ((unsigned long) (field[0]))
- | (((unsigned long) (field[1])) << 8)
- | (((unsigned long) (field[2])) << 16)
- | (((unsigned long) (field[3])) << 24);
-
-#ifdef BFD64
- case 8:
- return ((bfd_vma) (field[0]))
- | (((bfd_vma) (field[1])) << 8)
- | (((bfd_vma) (field[2])) << 16)
- | (((bfd_vma) (field[3])) << 24)
- | (((bfd_vma) (field[4])) << 32)
- | (((bfd_vma) (field[5])) << 40)
- | (((bfd_vma) (field[6])) << 48)
- | (((bfd_vma) (field[7])) << 56);
-#endif
- default:
- error (_("Unhandled data length: %d\n"), size);
- abort ();
- }
-}
-
-static bfd_vma
-byte_get_signed (unsigned char *field, int size)
-{
- bfd_vma x = byte_get (field, size);
-
- switch (size)
- {
- case 1:
- return (x ^ 0x80) - 0x80;
- case 2:
- return (x ^ 0x8000) - 0x8000;
- case 4:
- return (x ^ 0x80000000) - 0x80000000;
- case 8:
- return x;
- default:
- abort ();
- }
-}
-
-static bfd_vma
-byte_get_big_endian (unsigned char *field, int size)
-{
- switch (size)
- {
- case 1:
- return *field;
-
- case 2:
- return ((unsigned int) (field[1])) | (((int) (field[0])) << 8);
-
-#ifndef BFD64
- case 8:
- /* Although we are extracing data from an 8 byte wide field,
- we are returning only 4 bytes of data. */
- field += 4;
- /* Fall thru */
-#endif
- case 4:
- return ((unsigned long) (field[3]))
- | (((unsigned long) (field[2])) << 8)
- | (((unsigned long) (field[1])) << 16)
- | (((unsigned long) (field[0])) << 24);
-
-#ifdef BFD64
- case 8:
- return ((bfd_vma) (field[7]))
- | (((bfd_vma) (field[6])) << 8)
- | (((bfd_vma) (field[5])) << 16)
- | (((bfd_vma) (field[4])) << 24)
- | (((bfd_vma) (field[3])) << 32)
- | (((bfd_vma) (field[2])) << 40)
- | (((bfd_vma) (field[1])) << 48)
- | (((bfd_vma) (field[0])) << 56);
-#endif
-
- default:
- error (_("Unhandled data length: %d\n"), size);
- abort ();
- }
-}
-
-static unsigned long int
-read_leb128 (unsigned char *data, unsigned int *length_return, int sign)
-{
- unsigned long int result = 0;
- unsigned int num_read = 0;
- unsigned int shift = 0;
- unsigned char byte;
-
- do
- {
- byte = *data++;
- num_read++;
-
- result |= ((unsigned long int) (byte & 0x7f)) << shift;
-
- shift += 7;
-
- }
- while (byte & 0x80);
-
- if (length_return != NULL)
- *length_return = num_read;
-
- if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
- result |= -1L << shift;
-
- return result;
-}
-
-typedef struct State_Machine_Registers
-{
- unsigned long address;
- unsigned int file;
- unsigned int line;
- unsigned int column;
- int is_stmt;
- int basic_block;
- int end_sequence;
-/* This variable hold the number of the last entry seen
- in the File Table. */
- unsigned int last_file_entry;
-} SMR;
-
-static SMR state_machine_regs;
-
-static void
-reset_state_machine (int is_stmt)
-{
- state_machine_regs.address = 0;
- state_machine_regs.file = 1;
- state_machine_regs.line = 1;
- state_machine_regs.column = 0;
- state_machine_regs.is_stmt = is_stmt;
- state_machine_regs.basic_block = 0;
- state_machine_regs.end_sequence = 0;
- state_machine_regs.last_file_entry = 0;
-}
-
-/* Handled an extend line op.
- Returns the number of bytes read. */
-
-static int
-process_extended_line_op (unsigned char *data, int is_stmt, int pointer_size)
-{
- unsigned char op_code;
- unsigned int bytes_read;
- unsigned int len;
- unsigned char *name;
- unsigned long adr;
-
- len = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
-
- if (len == 0)
- {
- warn (_("badly formed extended line op encountered!\n"));
- return bytes_read;
- }
-
- len += bytes_read;
- op_code = *data++;
-
- printf (_(" Extended opcode %d: "), op_code);
-
- switch (op_code)
- {
- case DW_LNE_end_sequence:
- printf (_("End of Sequence\n\n"));
- reset_state_machine (is_stmt);
- break;
-
- case DW_LNE_set_address:
- adr = byte_get (data, pointer_size);
- printf (_("set Address to 0x%lx\n"), adr);
- state_machine_regs.address = adr;
- break;
-
- case DW_LNE_define_file:
- printf (_(" define new File Table entry\n"));
- printf (_(" Entry\tDir\tTime\tSize\tName\n"));
-
- printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
- name = data;
- data += strlen ((char *) data) + 1;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
- data += bytes_read;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
- data += bytes_read;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
- printf (_("%s\n\n"), name);
- break;
-
- default:
- printf (_("UNKNOWN: length %d\n"), len - bytes_read);
- break;
- }
-
- return len;
-}
-
-static struct dwarf_section debug_str_section = {
- ".debug_str",
- NULL,
- 0,
- 0
-};
-
-static const char *
-fetch_indirect_string (unsigned long offset)
-{
- if (debug_str_section.start == NULL)
- return _("<no .debug_str section>");
-
- if (offset > debug_str_section.size)
- {
- warn (_("DW_FORM_strp offset too big: %lx\n"), offset);
- return _("<offset is too big>");
- }
-
- return debug_str_section.start + offset;
-}
-
-static struct dwarf_section debug_abbrev_section = {
- ".debug_abbrev",
- NULL,
- 0,
- 0
-};
-
-/* FIXME: There are better and more efficient ways to handle
- these structures. For now though, I just want something that
- is simple to implement. */
-typedef struct abbrev_attr
-{
- unsigned long attribute;
- unsigned long form;
- struct abbrev_attr *next;
-}
-abbrev_attr;
-
-typedef struct abbrev_entry
-{
- unsigned long entry;
- unsigned long tag;
- int children;
- struct abbrev_attr *first_attr;
- struct abbrev_attr *last_attr;
- struct abbrev_entry *next;
-}
-abbrev_entry;
-
-static abbrev_entry *first_abbrev = NULL;
-static abbrev_entry *last_abbrev = NULL;
-
-static void
-free_abbrevs (void)
-{
- abbrev_entry *abbrev;
-
- for (abbrev = first_abbrev; abbrev;)
- {
- abbrev_entry *next = abbrev->next;
- abbrev_attr *attr;
-
- for (attr = abbrev->first_attr; attr;)
- {
- abbrev_attr *next = attr->next;
-
- free (attr);
- attr = next;
- }
-
- free (abbrev);
- abbrev = next;
- }
-
- last_abbrev = first_abbrev = NULL;
-}
-
-static void
-add_abbrev (unsigned long number, unsigned long tag, int children)
-{
- abbrev_entry *entry;
-
- entry = malloc (sizeof (*entry));
-
- if (entry == NULL)
- /* ugg */
- return;
-
- entry->entry = number;
- entry->tag = tag;
- entry->children = children;
- entry->first_attr = NULL;
- entry->last_attr = NULL;
- entry->next = NULL;
-
- if (first_abbrev == NULL)
- first_abbrev = entry;
- else
- last_abbrev->next = entry;
-
- last_abbrev = entry;
-}
-
-static void
-add_abbrev_attr (unsigned long attribute, unsigned long form)
-{
- abbrev_attr *attr;
-
- attr = malloc (sizeof (*attr));
-
- if (attr == NULL)
- /* ugg */
- return;
-
- attr->attribute = attribute;
- attr->form = form;
- attr->next = NULL;
-
- if (last_abbrev->first_attr == NULL)
- last_abbrev->first_attr = attr;
- else
- last_abbrev->last_attr->next = attr;
-
- last_abbrev->last_attr = attr;
-}
-
-/* Processes the (partial) contents of a .debug_abbrev section.
- Returns NULL if the end of the section was encountered.
- Returns the address after the last byte read if the end of
- an abbreviation set was found. */
-
-static unsigned char *
-process_abbrev_section (unsigned char *start, unsigned char *end)
-{
- if (first_abbrev != NULL)
- return NULL;
-
- while (start < end)
- {
- unsigned int bytes_read;
- unsigned long entry;
- unsigned long tag;
- unsigned long attribute;
- int children;
-
- entry = read_leb128 (start, & bytes_read, 0);
- start += bytes_read;
-
- /* A single zero is supposed to end the section according
- to the standard. If there's more, then signal that to
- the caller. */
- if (entry == 0)
- return start == end ? NULL : start;
-
- tag = read_leb128 (start, & bytes_read, 0);
- start += bytes_read;
-
- children = *start++;
-
- add_abbrev (entry, tag, children);
-
- do
- {
- unsigned long form;
-
- attribute = read_leb128 (start, & bytes_read, 0);
- start += bytes_read;
-
- form = read_leb128 (start, & bytes_read, 0);
- start += bytes_read;
-
- if (attribute != 0)
- add_abbrev_attr (attribute, form);
- }
- while (attribute != 0);
- }
-
- return NULL;
-}
-
-static char *
-get_TAG_name (unsigned long tag)
-{
- switch (tag)
- {
- case DW_TAG_padding: return "DW_TAG_padding";
- case DW_TAG_array_type: return "DW_TAG_array_type";
- case DW_TAG_class_type: return "DW_TAG_class_type";
- case DW_TAG_entry_point: return "DW_TAG_entry_point";
- case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type";
- case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter";
- case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration";
- case DW_TAG_label: return "DW_TAG_label";
- case DW_TAG_lexical_block: return "DW_TAG_lexical_block";
- case DW_TAG_member: return "DW_TAG_member";
- case DW_TAG_pointer_type: return "DW_TAG_pointer_type";
- case DW_TAG_reference_type: return "DW_TAG_reference_type";
- case DW_TAG_compile_unit: return "DW_TAG_compile_unit";
- case DW_TAG_string_type: return "DW_TAG_string_type";
- case DW_TAG_structure_type: return "DW_TAG_structure_type";
- case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type";
- case DW_TAG_typedef: return "DW_TAG_typedef";
- case DW_TAG_union_type: return "DW_TAG_union_type";
- case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters";
- case DW_TAG_variant: return "DW_TAG_variant";
- case DW_TAG_common_block: return "DW_TAG_common_block";
- case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion";
- case DW_TAG_inheritance: return "DW_TAG_inheritance";
- case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine";
- case DW_TAG_module: return "DW_TAG_module";
- case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type";
- case DW_TAG_set_type: return "DW_TAG_set_type";
- case DW_TAG_subrange_type: return "DW_TAG_subrange_type";
- case DW_TAG_with_stmt: return "DW_TAG_with_stmt";
- case DW_TAG_access_declaration: return "DW_TAG_access_declaration";
- case DW_TAG_base_type: return "DW_TAG_base_type";
- case DW_TAG_catch_block: return "DW_TAG_catch_block";
- case DW_TAG_const_type: return "DW_TAG_const_type";
- case DW_TAG_constant: return "DW_TAG_constant";
- case DW_TAG_enumerator: return "DW_TAG_enumerator";
- case DW_TAG_file_type: return "DW_TAG_file_type";
- case DW_TAG_friend: return "DW_TAG_friend";
- case DW_TAG_namelist: return "DW_TAG_namelist";
- case DW_TAG_namelist_item: return "DW_TAG_namelist_item";
- case DW_TAG_packed_type: return "DW_TAG_packed_type";
- case DW_TAG_subprogram: return "DW_TAG_subprogram";
- case DW_TAG_template_type_param: return "DW_TAG_template_type_param";
- case DW_TAG_template_value_param: return "DW_TAG_template_value_param";
- case DW_TAG_thrown_type: return "DW_TAG_thrown_type";
- case DW_TAG_try_block: return "DW_TAG_try_block";
- case DW_TAG_variant_part: return "DW_TAG_variant_part";
- case DW_TAG_variable: return "DW_TAG_variable";
- case DW_TAG_volatile_type: return "DW_TAG_volatile_type";
- case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop";
- case DW_TAG_format_label: return "DW_TAG_format_label";
- case DW_TAG_function_template: return "DW_TAG_function_template";
- case DW_TAG_class_template: return "DW_TAG_class_template";
- /* DWARF 2.1 values. */
- case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure";
- case DW_TAG_restrict_type: return "DW_TAG_restrict_type";
- case DW_TAG_interface_type: return "DW_TAG_interface_type";
- case DW_TAG_namespace: return "DW_TAG_namespace";
- case DW_TAG_imported_module: return "DW_TAG_imported_module";
- case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type";
- case DW_TAG_partial_unit: return "DW_TAG_partial_unit";
- case DW_TAG_imported_unit: return "DW_TAG_imported_unit";
- /* UPC values. */
- case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type";
- case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type";
- case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type";
- default:
- {
- static char buffer[100];
-
- snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag);
- return buffer;
- }
- }
-}
-
-static char *
-get_FORM_name (unsigned long form)
-{
- switch (form)
- {
- case DW_FORM_addr: return "DW_FORM_addr";
- case DW_FORM_block2: return "DW_FORM_block2";
- case DW_FORM_block4: return "DW_FORM_block4";
- case DW_FORM_data2: return "DW_FORM_data2";
- case DW_FORM_data4: return "DW_FORM_data4";
- case DW_FORM_data8: return "DW_FORM_data8";
- case DW_FORM_string: return "DW_FORM_string";
- case DW_FORM_block: return "DW_FORM_block";
- case DW_FORM_block1: return "DW_FORM_block1";
- case DW_FORM_data1: return "DW_FORM_data1";
- case DW_FORM_flag: return "DW_FORM_flag";
- case DW_FORM_sdata: return "DW_FORM_sdata";
- case DW_FORM_strp: return "DW_FORM_strp";
- case DW_FORM_udata: return "DW_FORM_udata";
- case DW_FORM_ref_addr: return "DW_FORM_ref_addr";
- case DW_FORM_ref1: return "DW_FORM_ref1";
- case DW_FORM_ref2: return "DW_FORM_ref2";
- case DW_FORM_ref4: return "DW_FORM_ref4";
- case DW_FORM_ref8: return "DW_FORM_ref8";
- case DW_FORM_ref_udata: return "DW_FORM_ref_udata";
- case DW_FORM_indirect: return "DW_FORM_indirect";
- default:
- {
- static char buffer[100];
-
- snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form);
- return buffer;
- }
- }
-}
-
-static unsigned char *
-display_block (unsigned char *data, unsigned long length)
-{
- printf (_(" %lu byte block: "), length);
-
- while (length --)
- printf ("%lx ", (unsigned long) byte_get (data++, 1));
-
- return data;
-}
-
-static int
-decode_location_expression (unsigned char * data,
- unsigned int pointer_size,
- unsigned long length,
- unsigned long cu_offset)
-{
- unsigned op;
- unsigned int bytes_read;
- unsigned long uvalue;
- unsigned char *end = data + length;
- int need_frame_base = 0;
-
- while (data < end)
- {
- op = *data++;
-
- switch (op)
- {
- case DW_OP_addr:
- printf ("DW_OP_addr: %lx",
- (unsigned long) byte_get (data, pointer_size));
- data += pointer_size;
- break;
- case DW_OP_deref:
- printf ("DW_OP_deref");
- break;
- case DW_OP_const1u:
- printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1));
- break;
- case DW_OP_const1s:
- printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1));
- break;
- case DW_OP_const2u:
- printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2));
- data += 2;
- break;
- case DW_OP_const2s:
- printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2));
- data += 2;
- break;
- case DW_OP_const4u:
- printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4));
- data += 4;
- break;
- case DW_OP_const4s:
- printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4));
- data += 4;
- break;
- case DW_OP_const8u:
- printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4),
- (unsigned long) byte_get (data + 4, 4));
- data += 8;
- break;
- case DW_OP_const8s:
- printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4),
- (long) byte_get (data + 4, 4));
- data += 8;
- break;
- case DW_OP_constu:
- printf ("DW_OP_constu: %lu", read_leb128 (data, &bytes_read, 0));
- data += bytes_read;
- break;
- case DW_OP_consts:
- printf ("DW_OP_consts: %ld", read_leb128 (data, &bytes_read, 1));
- data += bytes_read;
- break;
- case DW_OP_dup:
- printf ("DW_OP_dup");
- break;
- case DW_OP_drop:
- printf ("DW_OP_drop");
- break;
- case DW_OP_over:
- printf ("DW_OP_over");
- break;
- case DW_OP_pick:
- printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1));
- break;
- case DW_OP_swap:
- printf ("DW_OP_swap");
- break;
- case DW_OP_rot:
- printf ("DW_OP_rot");
- break;
- case DW_OP_xderef:
- printf ("DW_OP_xderef");
- break;
- case DW_OP_abs:
- printf ("DW_OP_abs");
- break;
- case DW_OP_and:
- printf ("DW_OP_and");
- break;
- case DW_OP_div:
- printf ("DW_OP_div");
- break;
- case DW_OP_minus:
- printf ("DW_OP_minus");
- break;
- case DW_OP_mod:
- printf ("DW_OP_mod");
- break;
- case DW_OP_mul:
- printf ("DW_OP_mul");
- break;
- case DW_OP_neg:
- printf ("DW_OP_neg");
- break;
- case DW_OP_not:
- printf ("DW_OP_not");
- break;
- case DW_OP_or:
- printf ("DW_OP_or");
- break;
- case DW_OP_plus:
- printf ("DW_OP_plus");
- break;
- case DW_OP_plus_uconst:
- printf ("DW_OP_plus_uconst: %lu",
- read_leb128 (data, &bytes_read, 0));
- data += bytes_read;
- break;
- case DW_OP_shl:
- printf ("DW_OP_shl");
- break;
- case DW_OP_shr:
- printf ("DW_OP_shr");
- break;
- case DW_OP_shra:
- printf ("DW_OP_shra");
- break;
- case DW_OP_xor:
- printf ("DW_OP_xor");
- break;
- case DW_OP_bra:
- printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2));
- data += 2;
- break;
- case DW_OP_eq:
- printf ("DW_OP_eq");
- break;
- case DW_OP_ge:
- printf ("DW_OP_ge");
- break;
- case DW_OP_gt:
- printf ("DW_OP_gt");
- break;
- case DW_OP_le:
- printf ("DW_OP_le");
- break;
- case DW_OP_lt:
- printf ("DW_OP_lt");
- break;
- case DW_OP_ne:
- printf ("DW_OP_ne");
- break;
- case DW_OP_skip:
- printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2));
- data += 2;
- break;
-
- case DW_OP_lit0:
- case DW_OP_lit1:
- case DW_OP_lit2:
- case DW_OP_lit3:
- case DW_OP_lit4:
- case DW_OP_lit5:
- case DW_OP_lit6:
- case DW_OP_lit7:
- case DW_OP_lit8:
- case DW_OP_lit9:
- case DW_OP_lit10:
- case DW_OP_lit11:
- case DW_OP_lit12:
- case DW_OP_lit13:
- case DW_OP_lit14:
- case DW_OP_lit15:
- case DW_OP_lit16:
- case DW_OP_lit17:
- case DW_OP_lit18:
- case DW_OP_lit19:
- case DW_OP_lit20:
- case DW_OP_lit21:
- case DW_OP_lit22:
- case DW_OP_lit23:
- case DW_OP_lit24:
- case DW_OP_lit25:
- case DW_OP_lit26:
- case DW_OP_lit27:
- case DW_OP_lit28:
- case DW_OP_lit29:
- case DW_OP_lit30:
- case DW_OP_lit31:
- printf ("DW_OP_lit%d", op - DW_OP_lit0);
- break;
-
- case DW_OP_reg0:
- case DW_OP_reg1:
- case DW_OP_reg2:
- case DW_OP_reg3:
- case DW_OP_reg4:
- case DW_OP_reg5:
- case DW_OP_reg6:
- case DW_OP_reg7:
- case DW_OP_reg8:
- case DW_OP_reg9:
- case DW_OP_reg10:
- case DW_OP_reg11:
- case DW_OP_reg12:
- case DW_OP_reg13:
- case DW_OP_reg14:
- case DW_OP_reg15:
- case DW_OP_reg16:
- case DW_OP_reg17:
- case DW_OP_reg18:
- case DW_OP_reg19:
- case DW_OP_reg20:
- case DW_OP_reg21:
- case DW_OP_reg22:
- case DW_OP_reg23:
- case DW_OP_reg24:
- case DW_OP_reg25:
- case DW_OP_reg26:
- case DW_OP_reg27:
- case DW_OP_reg28:
- case DW_OP_reg29:
- case DW_OP_reg30:
- case DW_OP_reg31:
- printf ("DW_OP_reg%d", op - DW_OP_reg0);
- break;
-
- case DW_OP_breg0:
- case DW_OP_breg1:
- case DW_OP_breg2:
- case DW_OP_breg3:
- case DW_OP_breg4:
- case DW_OP_breg5:
- case DW_OP_breg6:
- case DW_OP_breg7:
- case DW_OP_breg8:
- case DW_OP_breg9:
- case DW_OP_breg10:
- case DW_OP_breg11:
- case DW_OP_breg12:
- case DW_OP_breg13:
- case DW_OP_breg14:
- case DW_OP_breg15:
- case DW_OP_breg16:
- case DW_OP_breg17:
- case DW_OP_breg18:
- case DW_OP_breg19:
- case DW_OP_breg20:
- case DW_OP_breg21:
- case DW_OP_breg22:
- case DW_OP_breg23:
- case DW_OP_breg24:
- case DW_OP_breg25:
- case DW_OP_breg26:
- case DW_OP_breg27:
- case DW_OP_breg28:
- case DW_OP_breg29:
- case DW_OP_breg30:
- case DW_OP_breg31:
- printf ("DW_OP_breg%d: %ld", op - DW_OP_breg0,
- read_leb128 (data, &bytes_read, 1));
- data += bytes_read;
- break;
-
- case DW_OP_regx:
- printf ("DW_OP_regx: %lu", read_leb128 (data, &bytes_read, 0));
- data += bytes_read;
- break;
- case DW_OP_fbreg:
- need_frame_base = 1;
- printf ("DW_OP_fbreg: %ld", read_leb128 (data, &bytes_read, 1));
- data += bytes_read;
- break;
- case DW_OP_bregx:
- uvalue = read_leb128 (data, &bytes_read, 0);
- data += bytes_read;
- printf ("DW_OP_bregx: %lu %ld", uvalue,
- read_leb128 (data, &bytes_read, 1));
- data += bytes_read;
- break;
- case DW_OP_piece:
- printf ("DW_OP_piece: %lu", read_leb128 (data, &bytes_read, 0));
- data += bytes_read;
- break;
- case DW_OP_deref_size:
- printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1));
- break;
- case DW_OP_xderef_size:
- printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1));
- break;
- case DW_OP_nop:
- printf ("DW_OP_nop");
- break;
-
- /* DWARF 3 extensions. */
- case DW_OP_push_object_address:
- printf ("DW_OP_push_object_address");
- break;
- case DW_OP_call2:
- /* XXX: Strictly speaking for 64-bit DWARF3 files
- this ought to be an 8-byte wide computation. */
- printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2) + cu_offset);
- data += 2;
- break;
- case DW_OP_call4:
- /* XXX: Strictly speaking for 64-bit DWARF3 files
- this ought to be an 8-byte wide computation. */
- printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4) + cu_offset);
- data += 4;
- break;
- case DW_OP_call_ref:
- printf ("DW_OP_call_ref");
- break;
-
- /* GNU extensions. */
- case DW_OP_GNU_push_tls_address:
- printf ("DW_OP_GNU_push_tls_address");
- break;
-
- default:
- if (op >= DW_OP_lo_user
- && op <= DW_OP_hi_user)
- printf (_("(User defined location op)"));
- else
- printf (_("(Unknown location op)"));
- /* No way to tell where the next op is, so just bail. */
- return need_frame_base;
- }
-
- /* Separate the ops. */
- if (data < end)
- printf ("; ");
- }
-
- return need_frame_base;
-}
-
-/* This structure records the information that
- we extract from the.debug_info section. */
-typedef struct
-{
- unsigned int pointer_size;
- unsigned long cu_offset;
- unsigned long base_address;
- /* This is an array of offsets to the location list table. */
- unsigned long *loc_offsets;
- int *have_frame_base;
- unsigned int num_loc_offsets;
- unsigned int max_loc_offsets;
- unsigned long *range_lists;
- unsigned int num_range_lists;
- unsigned int max_range_lists;
-}
-debug_info;
-
-static debug_info * debug_information = NULL;
-static unsigned int num_debug_info_entries = 0;
-static unsigned int last_pointer_size = 0;
-static int warned_about_missing_comp_units = FALSE;
-
-static unsigned char *
-read_and_display_attr_value (unsigned long attribute,
- unsigned long form,
- unsigned char *data,
- unsigned long cu_offset,
- unsigned long pointer_size,
- unsigned long offset_size,
- int dwarf_version,
- debug_info *debug_info_p,
- int do_loc)
-{
- unsigned long uvalue = 0;
- unsigned char *block_start = NULL;
- unsigned int bytes_read;
-
- switch (form)
- {
- default:
- break;
-
- case DW_FORM_ref_addr:
- if (dwarf_version == 2)
- {
- uvalue = byte_get (data, pointer_size);
- data += pointer_size;
- }
- else if (dwarf_version == 3)
- {
- uvalue = byte_get (data, offset_size);
- data += offset_size;
- }
- else
- {
- error (_("Internal error: DWARF version is not 2 or 3.\n"));
- }
- break;
-
- case DW_FORM_addr:
- uvalue = byte_get (data, pointer_size);
- data += pointer_size;
- break;
-
- case DW_FORM_strp:
- uvalue = byte_get (data, offset_size);
- data += offset_size;
- break;
-
- case DW_FORM_ref1:
- case DW_FORM_flag:
- case DW_FORM_data1:
- uvalue = byte_get (data++, 1);
- break;
-
- case DW_FORM_ref2:
- case DW_FORM_data2:
- uvalue = byte_get (data, 2);
- data += 2;
- break;
-
- case DW_FORM_ref4:
- case DW_FORM_data4:
- uvalue = byte_get (data, 4);
- data += 4;
- break;
-
- case DW_FORM_sdata:
- uvalue = read_leb128 (data, & bytes_read, 1);
- data += bytes_read;
- break;
-
- case DW_FORM_ref_udata:
- case DW_FORM_udata:
- uvalue = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- break;
-
- case DW_FORM_indirect:
- form = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- if (!do_loc)
- printf (" %s", get_FORM_name (form));
- return read_and_display_attr_value (attribute, form, data,
- cu_offset, pointer_size,
- offset_size, dwarf_version,
- debug_info_p, do_loc);
- }
-
- switch (form)
- {
- case DW_FORM_ref_addr:
- if (!do_loc)
- printf (" <#%lx>", uvalue);
- break;
-
- case DW_FORM_ref1:
- case DW_FORM_ref2:
- case DW_FORM_ref4:
- case DW_FORM_ref_udata:
- if (!do_loc)
- printf (" <%lx>", uvalue + cu_offset);
- break;
-
- case DW_FORM_data4:
- case DW_FORM_addr:
- if (!do_loc)
- printf (" %#lx", uvalue);
- break;
-
- case DW_FORM_flag:
- case DW_FORM_data1:
- case DW_FORM_data2:
- case DW_FORM_sdata:
- case DW_FORM_udata:
- if (!do_loc)
- printf (" %ld", uvalue);
- break;
-
- case DW_FORM_ref8:
- case DW_FORM_data8:
- if (!do_loc)
- {
- uvalue = byte_get (data, 4);
- printf (" %lx", uvalue);
- printf (" %lx", (unsigned long) byte_get (data + 4, 4));
- }
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
- {
- if (sizeof (uvalue) == 8)
- uvalue = byte_get (data, 8);
- else
- error (_("DW_FORM_data8 is unsupported when sizeof (unsigned long) != 8\n"));
- }
- data += 8;
- break;
-
- case DW_FORM_string:
- if (!do_loc)
- printf (" %s", data);
- data += strlen ((char *) data) + 1;
- break;
-
- case DW_FORM_block:
- uvalue = read_leb128 (data, & bytes_read, 0);
- block_start = data + bytes_read;
- if (do_loc)
- data = block_start + uvalue;
- else
- data = display_block (block_start, uvalue);
- break;
-
- case DW_FORM_block1:
- uvalue = byte_get (data, 1);
- block_start = data + 1;
- if (do_loc)
- data = block_start + uvalue;
- else
- data = display_block (block_start, uvalue);
- break;
-
- case DW_FORM_block2:
- uvalue = byte_get (data, 2);
- block_start = data + 2;
- if (do_loc)
- data = block_start + uvalue;
- else
- data = display_block (block_start, uvalue);
- break;
-
- case DW_FORM_block4:
- uvalue = byte_get (data, 4);
- block_start = data + 4;
- if (do_loc)
- data = block_start + uvalue;
- else
- data = display_block (block_start, uvalue);
- break;
-
- case DW_FORM_strp:
- if (!do_loc)
- printf (_(" (indirect string, offset: 0x%lx): %s"),
- uvalue, fetch_indirect_string (uvalue));
- break;
-
- case DW_FORM_indirect:
- /* Handled above. */
- break;
-
- default:
- warn (_("Unrecognized form: %lu\n"), form);
- break;
- }
-
- /* For some attributes we can display further information. */
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
- {
- switch (attribute)
- {
- case DW_AT_frame_base:
- have_frame_base = 1;
- case DW_AT_location:
- case DW_AT_data_member_location:
- case DW_AT_vtable_elem_location:
- case DW_AT_allocated:
- case DW_AT_associated:
- case DW_AT_data_location:
- case DW_AT_stride:
- case DW_AT_upper_bound:
- case DW_AT_lower_bound:
- if (form == DW_FORM_data4 || form == DW_FORM_data8)
- {
- /* Process location list. */
- unsigned int max = debug_info_p->max_loc_offsets;
- unsigned int num = debug_info_p->num_loc_offsets;
-
- if (max == 0 || num >= max)
- {
- max += 1024;
- debug_info_p->loc_offsets
- = xcrealloc (debug_info_p->loc_offsets,
- max, sizeof (*debug_info_p->loc_offsets));
- debug_info_p->have_frame_base
- = xcrealloc (debug_info_p->have_frame_base,
- max, sizeof (*debug_info_p->have_frame_base));
- debug_info_p->max_loc_offsets = max;
- }
- debug_info_p->loc_offsets [num] = uvalue;
- debug_info_p->have_frame_base [num] = have_frame_base;
- debug_info_p->num_loc_offsets++;
- }
- break;
-
- case DW_AT_low_pc:
- if (need_base_address)
- debug_info_p->base_address = uvalue;
- break;
-
- case DW_AT_ranges:
- if (form == DW_FORM_data4 || form == DW_FORM_data8)
- {
- /* Process range list. */
- unsigned int max = debug_info_p->max_range_lists;
- unsigned int num = debug_info_p->num_range_lists;
-
- if (max == 0 || num >= max)
- {
- max += 1024;
- debug_info_p->range_lists
- = xcrealloc (debug_info_p->range_lists,
- max, sizeof (*debug_info_p->range_lists));
- debug_info_p->max_range_lists = max;
- }
- debug_info_p->range_lists [num] = uvalue;
- debug_info_p->num_range_lists++;
- }
- break;
-
- default:
- break;
- }
- }
-
- if (do_loc)
- return data;
-
- printf ("\t");
-
- switch (attribute)
- {
- case DW_AT_inline:
- switch (uvalue)
- {
- case DW_INL_not_inlined:
- printf (_("(not inlined)"));
- break;
- case DW_INL_inlined:
- printf (_("(inlined)"));
- break;
- case DW_INL_declared_not_inlined:
- printf (_("(declared as inline but ignored)"));
- break;
- case DW_INL_declared_inlined:
- printf (_("(declared as inline and inlined)"));
- break;
- default:
- printf (_(" (Unknown inline attribute value: %lx)"), uvalue);
- break;
- }
- break;
-
- case DW_AT_language:
- switch (uvalue)
- {
- case DW_LANG_C: printf ("(non-ANSI C)"); break;
- case DW_LANG_C89: printf ("(ANSI C)"); break;
- case DW_LANG_C_plus_plus: printf ("(C++)"); break;
- case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
- case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
- case DW_LANG_Modula2: printf ("(Modula 2)"); break;
- case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
- case DW_LANG_Ada83: printf ("(Ada)"); break;
- case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
- case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
- /* DWARF 2.1 values. */
- case DW_LANG_C99: printf ("(ANSI C99)"); break;
- case DW_LANG_Ada95: printf ("(ADA 95)"); break;
- case DW_LANG_Fortran95: printf ("(Fortran 95)"); break;
- /* MIPS extension. */
- case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
- /* UPC extension. */
- case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
- default:
- printf ("(Unknown: %lx)", uvalue);
- break;
- }
- break;
-
- case DW_AT_encoding:
- switch (uvalue)
- {
- case DW_ATE_void: printf ("(void)"); break;
- case DW_ATE_address: printf ("(machine address)"); break;
- case DW_ATE_boolean: printf ("(boolean)"); break;
- case DW_ATE_complex_float: printf ("(complex float)"); break;
- case DW_ATE_float: printf ("(float)"); break;
- case DW_ATE_signed: printf ("(signed)"); break;
- case DW_ATE_signed_char: printf ("(signed char)"); break;
- case DW_ATE_unsigned: printf ("(unsigned)"); break;
- case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
- /* DWARF 2.1 value. */
- case DW_ATE_imaginary_float: printf ("(imaginary float)"); break;
- case DW_ATE_decimal_float: printf ("(decimal float)"); break;
- default:
- if (uvalue >= DW_ATE_lo_user
- && uvalue <= DW_ATE_hi_user)
- printf ("(user defined type)");
- else
- printf ("(unknown type)");
- break;
- }
- break;
-
- case DW_AT_accessibility:
- switch (uvalue)
- {
- case DW_ACCESS_public: printf ("(public)"); break;
- case DW_ACCESS_protected: printf ("(protected)"); break;
- case DW_ACCESS_private: printf ("(private)"); break;
- default:
- printf ("(unknown accessibility)");
- break;
- }
- break;
-
- case DW_AT_visibility:
- switch (uvalue)
- {
- case DW_VIS_local: printf ("(local)"); break;
- case DW_VIS_exported: printf ("(exported)"); break;
- case DW_VIS_qualified: printf ("(qualified)"); break;
- default: printf ("(unknown visibility)"); break;
- }
- break;
-
- case DW_AT_virtuality:
- switch (uvalue)
- {
- case DW_VIRTUALITY_none: printf ("(none)"); break;
- case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
- case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
- default: printf ("(unknown virtuality)"); break;
- }
- break;
-
- case DW_AT_identifier_case:
- switch (uvalue)
- {
- case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
- case DW_ID_up_case: printf ("(up_case)"); break;
- case DW_ID_down_case: printf ("(down_case)"); break;
- case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
- default: printf ("(unknown case)"); break;
- }
- break;
-
- case DW_AT_calling_convention:
- switch (uvalue)
- {
- case DW_CC_normal: printf ("(normal)"); break;
- case DW_CC_program: printf ("(program)"); break;
- case DW_CC_nocall: printf ("(nocall)"); break;
- default:
- if (uvalue >= DW_CC_lo_user
- && uvalue <= DW_CC_hi_user)
- printf ("(user defined)");
- else
- printf ("(unknown convention)");
- }
- break;
-
- case DW_AT_ordering:
- switch (uvalue)
- {
- case -1: printf ("(undefined)"); break;
- case 0: printf ("(row major)"); break;
- case 1: printf ("(column major)"); break;
- }
- break;
-
- case DW_AT_frame_base:
- have_frame_base = 1;
- case DW_AT_location:
- case DW_AT_data_member_location:
- case DW_AT_vtable_elem_location:
- case DW_AT_allocated:
- case DW_AT_associated:
- case DW_AT_data_location:
- case DW_AT_stride:
- case DW_AT_upper_bound:
- case DW_AT_lower_bound:
- if (block_start)
- {
- int need_frame_base;
-
- printf ("(");
- need_frame_base = decode_location_expression (block_start,
- pointer_size,
- uvalue,
- cu_offset);
- printf (")");
- if (need_frame_base && !have_frame_base)
- printf (_(" [without DW_AT_frame_base]"));
- }
- else if (form == DW_FORM_data4 || form == DW_FORM_data8)
- printf (_("(location list)"));
-
- break;
-
- default:
- break;
- }
-
- return data;
-}
-
-static char *
-get_AT_name (unsigned long attribute)
-{
- switch (attribute)
- {
- case DW_AT_sibling: return "DW_AT_sibling";
- case DW_AT_location: return "DW_AT_location";
- case DW_AT_name: return "DW_AT_name";
- case DW_AT_ordering: return "DW_AT_ordering";
- case DW_AT_subscr_data: return "DW_AT_subscr_data";
- case DW_AT_byte_size: return "DW_AT_byte_size";
- case DW_AT_bit_offset: return "DW_AT_bit_offset";
- case DW_AT_bit_size: return "DW_AT_bit_size";
- case DW_AT_element_list: return "DW_AT_element_list";
- case DW_AT_stmt_list: return "DW_AT_stmt_list";
- case DW_AT_low_pc: return "DW_AT_low_pc";
- case DW_AT_high_pc: return "DW_AT_high_pc";
- case DW_AT_language: return "DW_AT_language";
- case DW_AT_member: return "DW_AT_member";
- case DW_AT_discr: return "DW_AT_discr";
- case DW_AT_discr_value: return "DW_AT_discr_value";
- case DW_AT_visibility: return "DW_AT_visibility";
- case DW_AT_import: return "DW_AT_import";
- case DW_AT_string_length: return "DW_AT_string_length";
- case DW_AT_common_reference: return "DW_AT_common_reference";
- case DW_AT_comp_dir: return "DW_AT_comp_dir";
- case DW_AT_const_value: return "DW_AT_const_value";
- case DW_AT_containing_type: return "DW_AT_containing_type";
- case DW_AT_default_value: return "DW_AT_default_value";
- case DW_AT_inline: return "DW_AT_inline";
- case DW_AT_is_optional: return "DW_AT_is_optional";
- case DW_AT_lower_bound: return "DW_AT_lower_bound";
- case DW_AT_producer: return "DW_AT_producer";
- case DW_AT_prototyped: return "DW_AT_prototyped";
- case DW_AT_return_addr: return "DW_AT_return_addr";
- case DW_AT_start_scope: return "DW_AT_start_scope";
- case DW_AT_stride_size: return "DW_AT_stride_size";
- case DW_AT_upper_bound: return "DW_AT_upper_bound";
- case DW_AT_abstract_origin: return "DW_AT_abstract_origin";
- case DW_AT_accessibility: return "DW_AT_accessibility";
- case DW_AT_address_class: return "DW_AT_address_class";
- case DW_AT_artificial: return "DW_AT_artificial";
- case DW_AT_base_types: return "DW_AT_base_types";
- case DW_AT_calling_convention: return "DW_AT_calling_convention";
- case DW_AT_count: return "DW_AT_count";
- case DW_AT_data_member_location: return "DW_AT_data_member_location";
- case DW_AT_decl_column: return "DW_AT_decl_column";
- case DW_AT_decl_file: return "DW_AT_decl_file";
- case DW_AT_decl_line: return "DW_AT_decl_line";
- case DW_AT_declaration: return "DW_AT_declaration";
- case DW_AT_discr_list: return "DW_AT_discr_list";
- case DW_AT_encoding: return "DW_AT_encoding";
- case DW_AT_external: return "DW_AT_external";
- case DW_AT_frame_base: return "DW_AT_frame_base";
- case DW_AT_friend: return "DW_AT_friend";
- case DW_AT_identifier_case: return "DW_AT_identifier_case";
- case DW_AT_macro_info: return "DW_AT_macro_info";
- case DW_AT_namelist_items: return "DW_AT_namelist_items";
- case DW_AT_priority: return "DW_AT_priority";
- case DW_AT_segment: return "DW_AT_segment";
- case DW_AT_specification: return "DW_AT_specification";
- case DW_AT_static_link: return "DW_AT_static_link";
- case DW_AT_type: return "DW_AT_type";
- case DW_AT_use_location: return "DW_AT_use_location";
- case DW_AT_variable_parameter: return "DW_AT_variable_parameter";
- case DW_AT_virtuality: return "DW_AT_virtuality";
- case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location";
- /* DWARF 2.1 values. */
- case DW_AT_allocated: return "DW_AT_allocated";
- case DW_AT_associated: return "DW_AT_associated";
- case DW_AT_data_location: return "DW_AT_data_location";
- case DW_AT_stride: return "DW_AT_stride";
- case DW_AT_entry_pc: return "DW_AT_entry_pc";
- case DW_AT_use_UTF8: return "DW_AT_use_UTF8";
- case DW_AT_extension: return "DW_AT_extension";
- case DW_AT_ranges: return "DW_AT_ranges";
- case DW_AT_trampoline: return "DW_AT_trampoline";
- case DW_AT_call_column: return "DW_AT_call_column";
- case DW_AT_call_file: return "DW_AT_call_file";
- case DW_AT_call_line: return "DW_AT_call_line";
- /* SGI/MIPS extensions. */
- case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde";
- case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin";
- case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin";
- case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin";
- case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor";
- case DW_AT_MIPS_software_pipeline_depth:
- return "DW_AT_MIPS_software_pipeline_depth";
- case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name";
- case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride";
- case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name";
- case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin";
- case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines";
- /* GNU extensions. */
- case DW_AT_sf_names: return "DW_AT_sf_names";
- case DW_AT_src_info: return "DW_AT_src_info";
- case DW_AT_mac_info: return "DW_AT_mac_info";
- case DW_AT_src_coords: return "DW_AT_src_coords";
- case DW_AT_body_begin: return "DW_AT_body_begin";
- case DW_AT_body_end: return "DW_AT_body_end";
- case DW_AT_GNU_vector: return "DW_AT_GNU_vector";
- /* UPC extension. */
- case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled";
- default:
- {
- static char buffer[100];
-
- snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"),
- attribute);
- return buffer;
- }
- }
-}
-
-static unsigned char *
-read_and_display_attr (unsigned long attribute,
- unsigned long form,
- unsigned char *data,
- unsigned long cu_offset,
- unsigned long pointer_size,
- unsigned long offset_size,
- int dwarf_version,
- debug_info *debug_info_p,
- int do_loc)
-{
- if (!do_loc)
- printf (" %-18s:", get_AT_name (attribute));
- data = read_and_display_attr_value (attribute, form, data, cu_offset,
- pointer_size, offset_size,
- dwarf_version, debug_info_p,
- do_loc);
- if (!do_loc)
- printf ("\n");
- return data;
-}
-
-
-/* Process the contents of a .debug_info section. If do_loc is non-zero
- then we are scanning for location lists and we do not want to display
- anything to the user. */
-
-static int
-process_debug_info (struct dwarf_section *section, void *file,
- int do_loc)
-{
- unsigned char *start = section->start;
- unsigned char *end = start + section->size;
- unsigned char *section_begin;
- unsigned int unit;
- unsigned int num_units = 0;
-
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
- {
- unsigned long length;
-
- /* First scan the section to get the number of comp units. */
- for (section_begin = start, num_units = 0; section_begin < end;
- num_units ++)
- {
- /* Read the first 4 bytes. For a 32-bit DWARF section, this
- will be the length. For a 64-bit DWARF section, it'll be
- the escape code 0xffffffff followed by an 8 byte length. */
- length = byte_get (section_begin, 4);
-
- if (length == 0xffffffff)
- {
- length = byte_get (section_begin + 4, 8);
- section_begin += length + 12;
- }
- else
- section_begin += length + 4;
- }
-
- if (num_units == 0)
- {
- error (_("No comp units in %s section ?"), section->name);
- return 0;
- }
-
- /* Then allocate an array to hold the information. */
- debug_information = cmalloc (num_units,
- sizeof (* debug_information));
- if (debug_information == NULL)
- {
- error (_("Not enough memory for a debug info array of %u entries"),
- num_units);
- return 0;
- }
- }
-
- if (!do_loc)
- {
- printf (_("The section %s contains:\n\n"), section->name);
-
- load_debug_section (&debug_str_section, file);
- }
-
- load_debug_section (&debug_abbrev_section, file);
- if (debug_abbrev_section.start == NULL)
- {
- warn (_("Unable to locate %s section!\n"),
- debug_abbrev_section.name);
- return 0;
- }
-
- for (section_begin = start, unit = 0; start < end; unit++)
- {
- DWARF2_Internal_CompUnit compunit;
- unsigned char *hdrptr;
- unsigned char *cu_abbrev_offset_ptr;
- unsigned char *tags;
- int level;
- unsigned long cu_offset;
- int offset_size;
- int initial_length_size;
-
- hdrptr = start;
-
- compunit.cu_length = byte_get (hdrptr, 4);
- hdrptr += 4;
-
- if (compunit.cu_length == 0xffffffff)
- {
- compunit.cu_length = byte_get (hdrptr, 8);
- hdrptr += 8;
- offset_size = 8;
- initial_length_size = 12;
- }
- else
- {
- offset_size = 4;
- initial_length_size = 4;
- }
-
- compunit.cu_version = byte_get (hdrptr, 2);
- hdrptr += 2;
-
- cu_offset = start - section_begin;
- start += compunit.cu_length + initial_length_size;
-
- cu_abbrev_offset_ptr = hdrptr;
- compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size);
- hdrptr += offset_size;
-
- compunit.cu_pointer_size = byte_get (hdrptr, 1);
- hdrptr += 1;
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
- {
- debug_information [unit].cu_offset = cu_offset;
- debug_information [unit].pointer_size
- = compunit.cu_pointer_size;
- debug_information [unit].base_address = 0;
- debug_information [unit].loc_offsets = NULL;
- debug_information [unit].have_frame_base = NULL;
- debug_information [unit].max_loc_offsets = 0;
- debug_information [unit].num_loc_offsets = 0;
- debug_information [unit].range_lists = NULL;
- debug_information [unit].max_range_lists= 0;
- debug_information [unit].num_range_lists = 0;
- }
-
- tags = hdrptr;
-
- if (!do_loc)
- {
- printf (_(" Compilation Unit @ offset 0x%lx:\n"), cu_offset);
- printf (_(" Length: %ld\n"), compunit.cu_length);
- printf (_(" Version: %d\n"), compunit.cu_version);
- printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
- printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
- }
-
- if (compunit.cu_version != 2 && compunit.cu_version != 3)
- {
- warn (_("Only version 2 and 3 DWARF debug information is currently supported.\n"));
- continue;
- }
-
- free_abbrevs ();
-
- /* Process the abbrevs used by this compilation unit. */
- process_abbrev_section
- ((unsigned char *) debug_abbrev_section.start
- + compunit.cu_abbrev_offset,
- (unsigned char *) debug_abbrev_section.start
- + debug_abbrev_section.size);
-
- level = 0;
- while (tags < start)
- {
- unsigned int bytes_read;
- unsigned long abbrev_number;
- abbrev_entry *entry;
- abbrev_attr *attr;
-
- abbrev_number = read_leb128 (tags, & bytes_read, 0);
- tags += bytes_read;
-
- /* A null DIE marks the end of a list of children. */
- if (abbrev_number == 0)
- {
- --level;
- continue;
- }
-
- /* Scan through the abbreviation list until we reach the
- correct entry. */
- for (entry = first_abbrev;
- entry && entry->entry != abbrev_number;
- entry = entry->next)
- continue;
-
- if (entry == NULL)
- {
- warn (_("Unable to locate entry %lu in the abbreviation table\n"),
- abbrev_number);
- return 0;
- }
-
- if (!do_loc)
- printf (_(" <%d><%lx>: Abbrev Number: %lu (%s)\n"),
- level,
- (unsigned long) (tags - section_begin
- - bytes_read),
- abbrev_number,
- get_TAG_name (entry->tag));
-
- switch (entry->tag)
- {
- default:
- need_base_address = 0;
- break;
- case DW_TAG_compile_unit:
- need_base_address = 1;
- break;
- case DW_TAG_entry_point:
- case DW_TAG_inlined_subroutine:
- case DW_TAG_subprogram:
- need_base_address = 0;
- /* Assuming that there is no DW_AT_frame_base. */
- have_frame_base = 0;
- break;
- }
-
- for (attr = entry->first_attr; attr; attr = attr->next)
- tags = read_and_display_attr (attr->attribute,
- attr->form,
- tags, cu_offset,
- compunit.cu_pointer_size,
- offset_size,
- compunit.cu_version,
- &debug_information [unit],
- do_loc);
-
- if (entry->children)
- ++level;
- }
- }
-
- free_debug_section (&debug_abbrev_section);
-
- /* Set num_debug_info_entries here so that it can be used to check if
- we need to process .debug_loc and .debug_ranges sections. */
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
- num_debug_info_entries = num_units;
-
- if (!do_loc)
- {
- free_debug_section (&debug_str_section);
-
- printf ("\n");
- }
-
- return 1;
-}
-
-/* Retrieve the pointer size associated with the given compilation unit.
- Optionally the offset of this unit into the .debug_info section is
- also retutned. If there is no .debug_info section then an error
- message is issued and 0 is returned. If the requested comp unit has
- not been defined in the .debug_info section then a warning message
- is issued and the last know pointer size is returned. This message
- is only issued once per section dumped per file dumped. */
-
-static unsigned int
-get_pointer_size_and_offset_of_comp_unit (unsigned int comp_unit,
- const char * section_name,
- unsigned long * offset_return)
-{
- unsigned long offset = 0;
-
- if (num_debug_info_entries == 0)
- error (_("%s section needs a populated .debug_info section\n"),
- section_name);
-
- else if (comp_unit >= num_debug_info_entries)
- {
- if (!warned_about_missing_comp_units)
- {
- warn (_("%s section has more comp units than .debug_info section\n"),
- section_name);
- warn (_("assuming that the pointer size is %d, from the last comp unit in .debug_info\n\n"),
- last_pointer_size);
- warned_about_missing_comp_units = TRUE;
- }
- }
- else
- {
- last_pointer_size = debug_information [comp_unit].pointer_size;
- offset = debug_information [comp_unit].cu_offset;
- }
-
- if (offset_return != NULL)
- * offset_return = offset;
-
- return last_pointer_size;
-}
-
-/* Locate and scan the .debug_info section in the file and record the pointer
- sizes and offsets for the compilation units in it. Usually an executable
- will have just one pointer size, but this is not guaranteed, and so we try
- not to make any assumptions. Returns zero upon failure, or the number of
- compilation units upon success. */
-
-static unsigned int
-get_debug_info (void * file)
+int
+load_debug_section (enum dwarf_section_display_enum debug, void *file)
{
- Elf_Internal_Shdr * section;
- struct dwarf_section sec;
- int ret;
-
- /* Reset the last pointer size so that we can issue correct error
- messages if we are displaying the contents of more than one section. */
- last_pointer_size = 0;
- warned_about_missing_comp_units = FALSE;
-
- /* If we already have the information there is nothing else to do. */
- if (num_debug_info_entries > 0)
- return num_debug_info_entries;
+ struct dwarf_section *section = &debug_displays [debug].section;
+ Elf_Internal_Shdr *sec;
+ char buf [64];
- sec.name = ".debug_info";
- section = find_section (sec.name);
- if (section == NULL)
- return 0;
+ /* If it is already loaded, do nothing. */
+ if (section->start != NULL)
+ return 1;
- sec.start = get_data (NULL, file, section->sh_offset, 1,
- section->sh_size,
- _("extracting information from .debug_info section"));
- if (sec.start == NULL)
+ /* Locate the debug section. */
+ sec = find_section (section->name);
+ if (sec == NULL)
return 0;
- sec.address = section->sh_addr;
- sec.size = section->sh_size;
- ret = (debug_apply_rela_addends (file, section, sec.start)
- && process_debug_info (&sec, file, 1));
-
- free (sec.start);
-
- return ret ? num_debug_info_entries : 0;
-}
-
-static int
-display_debug_lines (struct dwarf_section *section, void *file)
-{
- unsigned char *start = section->start;
- unsigned char *data = start;
- unsigned char *end = start + section->size;
- unsigned int comp_unit = 0;
-
- printf (_("\nDump of debug contents of section %s:\n\n"),
- section->name);
-
- get_debug_info (file);
-
- while (data < end)
- {
- DWARF2_Internal_LineInfo info;
- unsigned char *standard_opcodes;
- unsigned char *end_of_sequence;
- unsigned char *hdrptr;
- unsigned int pointer_size;
- int initial_length_size;
- int offset_size;
- int i;
-
- hdrptr = data;
-
- /* Check the length of the block. */
- info.li_length = byte_get (hdrptr, 4);
- hdrptr += 4;
-
- if (info.li_length == 0xffffffff)
- {
- /* This section is 64-bit DWARF 3. */
- info.li_length = byte_get (hdrptr, 8);
- hdrptr += 8;
- offset_size = 8;
- initial_length_size = 12;
- }
- else
- {
- offset_size = 4;
- initial_length_size = 4;
- }
-
- if (info.li_length + initial_length_size > section->size)
- {
- warn
- (_("The line info appears to be corrupt - the section is too small\n"));
- return 0;
- }
-
- /* Check its version number. */
- info.li_version = byte_get (hdrptr, 2);
- hdrptr += 2;
- if (info.li_version != 2 && info.li_version != 3)
- {
- warn (_("Only DWARF version 2 and 3 line info is currently supported.\n"));
- return 0;
- }
-
- info.li_prologue_length = byte_get (hdrptr, offset_size);
- hdrptr += offset_size;
- info.li_min_insn_length = byte_get (hdrptr, 1);
- hdrptr++;
- info.li_default_is_stmt = byte_get (hdrptr, 1);
- hdrptr++;
- info.li_line_base = byte_get (hdrptr, 1);
- hdrptr++;
- info.li_line_range = byte_get (hdrptr, 1);
- hdrptr++;
- info.li_opcode_base = byte_get (hdrptr, 1);
- hdrptr++;
-
- /* Sign extend the line base field. */
- info.li_line_base <<= 24;
- info.li_line_base >>= 24;
-
- /* Get the pointer size from the comp unit associated
- with this block of line number information. */
- pointer_size = get_pointer_size_and_offset_of_comp_unit
- (comp_unit, ".debug_line", NULL);
- comp_unit ++;
-
- printf (_(" Length: %ld\n"), info.li_length);
- printf (_(" DWARF Version: %d\n"), info.li_version);
- printf (_(" Prologue Length: %d\n"), info.li_prologue_length);
- printf (_(" Minimum Instruction Length: %d\n"), info.li_min_insn_length);
- printf (_(" Initial value of 'is_stmt': %d\n"), info.li_default_is_stmt);
- printf (_(" Line Base: %d\n"), info.li_line_base);
- printf (_(" Line Range: %d\n"), info.li_line_range);
- printf (_(" Opcode Base: %d\n"), info.li_opcode_base);
- printf (_(" (Pointer size: %u)%s\n"),
- pointer_size,
- warned_about_missing_comp_units ? " [assumed]" : "" );
-
- end_of_sequence = data + info.li_length + initial_length_size;
-
- reset_state_machine (info.li_default_is_stmt);
-
- /* Display the contents of the Opcodes table. */
- standard_opcodes = hdrptr;
-
- printf (_("\n Opcodes:\n"));
-
- for (i = 1; i < info.li_opcode_base; i++)
- printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
-
- /* Display the contents of the Directory table. */
- data = standard_opcodes + info.li_opcode_base - 1;
-
- if (*data == 0)
- printf (_("\n The Directory Table is empty.\n"));
- else
- {
- printf (_("\n The Directory Table:\n"));
-
- while (*data != 0)
- {
- printf (_(" %s\n"), data);
-
- data += strlen ((char *) data) + 1;
- }
- }
-
- /* Skip the NUL at the end of the table. */
- data++;
-
- /* Display the contents of the File Name table. */
- if (*data == 0)
- printf (_("\n The File Name Table is empty.\n"));
- else
- {
- printf (_("\n The File Name Table:\n"));
- printf (_(" Entry\tDir\tTime\tSize\tName\n"));
-
- while (*data != 0)
- {
- unsigned char *name;
- unsigned int bytes_read;
-
- printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
- name = data;
-
- data += strlen ((char *) data) + 1;
-
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
- data += bytes_read;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
- data += bytes_read;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
- data += bytes_read;
- printf (_("%s\n"), name);
- }
- }
-
- /* Skip the NUL at the end of the table. */
- data++;
-
- /* Now display the statements. */
- printf (_("\n Line Number Statements:\n"));
-
- while (data < end_of_sequence)
- {
- unsigned char op_code;
- int adv;
- unsigned long int uladv;
- unsigned int bytes_read;
-
- op_code = *data++;
-
- if (op_code >= info.li_opcode_base)
- {
- op_code -= info.li_opcode_base;
- uladv = (op_code / info.li_line_range) * info.li_min_insn_length;
- state_machine_regs.address += uladv;
- printf (_(" Special opcode %d: advance Address by %lu to 0x%lx"),
- op_code, uladv, state_machine_regs.address);
- adv = (op_code % info.li_line_range) + info.li_line_base;
- state_machine_regs.line += adv;
- printf (_(" and Line by %d to %d\n"),
- adv, state_machine_regs.line);
- }
- else switch (op_code)
- {
- case DW_LNS_extended_op:
- if (pointer_size == 0)
- {
- warn (_("Extend line ops need a valid pointer size, guessing at 4\n"));
- pointer_size = 4;
- }
-
- data += process_extended_line_op (data, info.li_default_is_stmt,
- pointer_size);
- break;
-
- case DW_LNS_copy:
- printf (_(" Copy\n"));
- break;
-
- case DW_LNS_advance_pc:
- uladv = read_leb128 (data, & bytes_read, 0);
- uladv *= info.li_min_insn_length;
- data += bytes_read;
- state_machine_regs.address += uladv;
- printf (_(" Advance PC by %lu to 0x%lx\n"), uladv,
- state_machine_regs.address);
- break;
-
- case DW_LNS_advance_line:
- adv = read_leb128 (data, & bytes_read, 1);
- data += bytes_read;
- state_machine_regs.line += adv;
- printf (_(" Advance Line by %d to %d\n"), adv,
- state_machine_regs.line);
- break;
-
- case DW_LNS_set_file:
- adv = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- printf (_(" Set File Name to entry %d in the File Name Table\n"),
- adv);
- state_machine_regs.file = adv;
- break;
-
- case DW_LNS_set_column:
- uladv = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- printf (_(" Set column to %lu\n"), uladv);
- state_machine_regs.column = uladv;
- break;
-
- case DW_LNS_negate_stmt:
- adv = state_machine_regs.is_stmt;
- adv = ! adv;
- printf (_(" Set is_stmt to %d\n"), adv);
- state_machine_regs.is_stmt = adv;
- break;
-
- case DW_LNS_set_basic_block:
- printf (_(" Set basic block\n"));
- state_machine_regs.basic_block = 1;
- break;
-
- case DW_LNS_const_add_pc:
- uladv = (((255 - info.li_opcode_base) / info.li_line_range)
- * info.li_min_insn_length);
- state_machine_regs.address += uladv;
- printf (_(" Advance PC by constant %lu to 0x%lx\n"), uladv,
- state_machine_regs.address);
- break;
-
- case DW_LNS_fixed_advance_pc:
- uladv = byte_get (data, 2);
- data += 2;
- state_machine_regs.address += uladv;
- printf (_(" Advance PC by fixed size amount %lu to 0x%lx\n"),
- uladv, state_machine_regs.address);
- break;
-
- case DW_LNS_set_prologue_end:
- printf (_(" Set prologue_end to true\n"));
- break;
-
- case DW_LNS_set_epilogue_begin:
- printf (_(" Set epilogue_begin to true\n"));
- break;
-
- case DW_LNS_set_isa:
- uladv = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- printf (_(" Set ISA to %lu\n"), uladv);
- break;
-
- default:
- printf (_(" Unknown opcode %d with operands: "), op_code);
-
- for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
- {
- printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0),
- i == 1 ? "" : ", ");
- data += bytes_read;
- }
- putchar ('\n');
- break;
- }
- }
- putchar ('\n');
- }
-
- return 1;
-}
-
-static int
-display_debug_pubnames (struct dwarf_section *section,
- void *file ATTRIBUTE_UNUSED)
-{
- DWARF2_Internal_PubNames pubnames;
- unsigned char *start = section->start;
- unsigned char *end = start + section->size;
-
- printf (_("Contents of the %s section:\n\n"), section->name);
-
- while (start < end)
- {
- unsigned char *data;
- unsigned long offset;
- int offset_size, initial_length_size;
-
- data = start;
-
- pubnames.pn_length = byte_get (data, 4);
- data += 4;
- if (pubnames.pn_length == 0xffffffff)
- {
- pubnames.pn_length = byte_get (data, 8);
- data += 8;
- offset_size = 8;
- initial_length_size = 12;
- }
- else
- {
- offset_size = 4;
- initial_length_size = 4;
- }
-
- pubnames.pn_version = byte_get (data, 2);
- data += 2;
- pubnames.pn_offset = byte_get (data, offset_size);
- data += offset_size;
- pubnames.pn_size = byte_get (data, offset_size);
- data += offset_size;
-
- start += pubnames.pn_length + initial_length_size;
-
- if (pubnames.pn_version != 2 && pubnames.pn_version != 3)
- {
- static int warned = 0;
-
- if (! warned)
- {
- warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
- warned = 1;
- }
-
- continue;
- }
-
- printf (_(" Length: %ld\n"),
- pubnames.pn_length);
- printf (_(" Version: %d\n"),
- pubnames.pn_version);
- printf (_(" Offset into .debug_info section: %ld\n"),
- pubnames.pn_offset);
- printf (_(" Size of area in .debug_info section: %ld\n"),
- pubnames.pn_size);
-
- printf (_("\n Offset\tName\n"));
-
- do
- {
- offset = byte_get (data, offset_size);
-
- if (offset != 0)
- {
- data += offset_size;
- printf (" %-6ld\t\t%s\n", offset, data);
- data += strlen ((char *) data) + 1;
- }
- }
- while (offset != 0);
- }
-
- printf ("\n");
- return 1;
-}
-
-static int
-display_debug_macinfo (struct dwarf_section *section,
- void *file ATTRIBUTE_UNUSED)
-{
- unsigned char *start = section->start;
- unsigned char *end = start + section->size;
- unsigned char *curr = start;
- unsigned int bytes_read;
- enum dwarf_macinfo_record_type op;
-
- printf (_("Contents of the %s section:\n\n"), section->name);
-
- while (curr < end)
- {
- unsigned int lineno;
- const char *string;
-
- op = *curr;
- curr++;
-
- switch (op)
- {
- case DW_MACINFO_start_file:
- {
- unsigned int filenum;
-
- lineno = read_leb128 (curr, & bytes_read, 0);
- curr += bytes_read;
- filenum = read_leb128 (curr, & bytes_read, 0);
- curr += bytes_read;
-
- printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
- lineno, filenum);
- }
- break;
-
- case DW_MACINFO_end_file:
- printf (_(" DW_MACINFO_end_file\n"));
- break;
-
- case DW_MACINFO_define:
- lineno = read_leb128 (curr, & bytes_read, 0);
- curr += bytes_read;
- string = (char *) curr;
- curr += strlen (string) + 1;
- printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"),
- lineno, string);
- break;
-
- case DW_MACINFO_undef:
- lineno = read_leb128 (curr, & bytes_read, 0);
- curr += bytes_read;
- string = (char *) curr;
- curr += strlen (string) + 1;
- printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"),
- lineno, string);
- break;
-
- case DW_MACINFO_vendor_ext:
- {
- unsigned int constant;
-
- constant = read_leb128 (curr, & bytes_read, 0);
- curr += bytes_read;
- string = (char *) curr;
- curr += strlen (string) + 1;
- printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"),
- constant, string);
- }
- break;
- }
- }
-
- return 1;
-}
-
-
-static int
-display_debug_abbrev (struct dwarf_section *section,
- void *file ATTRIBUTE_UNUSED)
-{
- abbrev_entry *entry;
- unsigned char *start = section->start;
- unsigned char *end = start + section->size;
-
- printf (_("Contents of the %s section:\n\n"), section->name);
-
- do
- {
- start = process_abbrev_section (start, end);
-
- if (first_abbrev == NULL)
- continue;
-
- printf (_(" Number TAG\n"));
-
- for (entry = first_abbrev; entry; entry = entry->next)
- {
- abbrev_attr *attr;
-
- printf (_(" %ld %s [%s]\n"),
- entry->entry,
- get_TAG_name (entry->tag),
- entry->children ? _("has children") : _("no children"));
-
- for (attr = entry->first_attr; attr; attr = attr->next)
- printf (_(" %-18s %s\n"),
- get_AT_name (attr->attribute),
- get_FORM_name (attr->form));
- }
-
- free_abbrevs ();
- }
- while (start);
-
- printf ("\n");
-
- return 1;
-}
-
-static int
-display_debug_loc (struct dwarf_section *section, void *file)
-{
- unsigned char *start = section->start;
- unsigned char *section_end;
- unsigned long bytes;
- unsigned char *section_begin = start;
- unsigned int num_loc_list = 0;
- unsigned long last_offset = 0;
- unsigned int first = 0;
- unsigned int i;
- unsigned int j;
- int seen_first_offset = 0;
- int use_debug_info = 1;
- unsigned char *next;
-
- bytes = section->size;
- section_end = start + bytes;
-
- if (bytes == 0)
- {
- printf (_("\nThe %s section is empty.\n"), section->name);
- return 0;
- }
-
- get_debug_info (file);
-
- /* Check the order of location list in .debug_info section. If
- offsets of location lists are in the ascending order, we can
- use `debug_information' directly. */
- for (i = 0; i < num_debug_info_entries; i++)
- {
- unsigned int num;
-
- num = debug_information [i].num_loc_offsets;
- num_loc_list += num;
-
- /* Check if we can use `debug_information' directly. */
- if (use_debug_info && num != 0)
- {
- if (!seen_first_offset)
- {
- /* This is the first location list. */
- last_offset = debug_information [i].loc_offsets [0];
- first = i;
- seen_first_offset = 1;
- j = 1;
- }
- else
- j = 0;
-
- for (; j < num; j++)
- {
- if (last_offset >
- debug_information [i].loc_offsets [j])
- {
- use_debug_info = 0;
- break;
- }
- last_offset = debug_information [i].loc_offsets [j];
- }
- }
- }
-
- if (!use_debug_info)
- /* FIXME: Should we handle this case? */
- error (_("Location lists in .debug_info section aren't in ascending order!\n"));
-
- if (!seen_first_offset)
- error (_("No location lists in .debug_info section!\n"));
-
- if (debug_information [first].loc_offsets [0] != 0)
- warn (_("Location lists in %s section start at 0x%lx\n"),
- section->name, debug_information [first].loc_offsets [0]);
-
- printf (_("Contents of the %s section:\n\n"), section->name);
- printf (_(" Offset Begin End Expression\n"));
-
- seen_first_offset = 0;
- for (i = first; i < num_debug_info_entries; i++)
- {
- unsigned long begin;
- unsigned long end;
- unsigned short length;
- unsigned long offset;
- unsigned int pointer_size;
- unsigned long cu_offset;
- unsigned long base_address;
- int need_frame_base;
- int has_frame_base;
-
- pointer_size = debug_information [i].pointer_size;
- cu_offset = debug_information [i].cu_offset;
-
- for (j = 0; j < debug_information [i].num_loc_offsets; j++)
- {
- has_frame_base = debug_information [i].have_frame_base [j];
- offset = debug_information [i].loc_offsets [j];
- next = section_begin + offset;
- base_address = debug_information [i].base_address;
-
- if (!seen_first_offset)
- seen_first_offset = 1;
- else
- {
- if (start < next)
- warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
- (long)(start - section_begin), (long)(next - section_begin));
- else if (start > next)
- warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
- (long)(start - section_begin), (long)(next - section_begin));
- }
- start = next;
-
- if (offset >= bytes)
- {
- warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
- offset);
- continue;
- }
-
- while (1)
- {
- if (start + 2 * pointer_size > section_end)
- {
- warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
- offset);
- break;
- }
-
- begin = byte_get (start, pointer_size);
- start += pointer_size;
- end = byte_get (start, pointer_size);
- start += pointer_size;
-
- if (begin == 0 && end == 0)
- {
- printf (_(" %8.8lx <End of list>\n"), offset);
- break;
- }
-
- /* Check base address specifiers. */
- if (begin == -1UL && end != -1UL)
- {
- base_address = end;
- printf (_(" %8.8lx %8.8lx %8.8lx (base address)\n"),
- offset, begin, end);
- continue;
- }
-
- if (start + 2 > section_end)
- {
- warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
- offset);
- break;
- }
-
- length = byte_get (start, 2);
- start += 2;
-
- if (start + length > section_end)
- {
- warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
- offset);
- break;
- }
-
- printf (" %8.8lx %8.8lx %8.8lx (",
- offset, begin + base_address, end + base_address);
- need_frame_base = decode_location_expression (start,
- pointer_size,
- length,
- cu_offset);
- putchar (')');
-
- if (need_frame_base && !has_frame_base)
- printf (_(" [without DW_AT_frame_base]"));
-
- if (begin == end)
- fputs (_(" (start == end)"), stdout);
- else if (begin > end)
- fputs (_(" (start > end)"), stdout);
-
- putchar ('\n');
-
- start += length;
- }
- }
- }
- return 1;
-}
-
-static int
-display_debug_str (struct dwarf_section *section,
- void *file ATTRIBUTE_UNUSED)
-{
- unsigned char *start = section->start;
- unsigned long bytes = section->size;
- bfd_vma addr = section->address;
-
- if (bytes == 0)
- {
- printf (_("\nThe %s section is empty.\n"), section->name);
- return 0;
- }
-
- printf (_("Contents of the %s section:\n\n"), section->name);
-
- while (bytes)
- {
- int j;
- int k;
- int lbytes;
-
- lbytes = (bytes > 16 ? 16 : bytes);
-
- printf (" 0x%8.8lx ", (unsigned long) addr);
-
- for (j = 0; j < 16; j++)
- {
- if (j < lbytes)
- printf ("%2.2x", start[j]);
- else
- printf (" ");
-
- if ((j & 3) == 3)
- printf (" ");
- }
-
- for (j = 0; j < lbytes; j++)
- {
- k = start[j];
- if (k >= ' ' && k < 0x80)
- printf ("%c", k);
- else
- printf (".");
- }
-
- putchar ('\n');
-
- start += lbytes;
- addr += lbytes;
- bytes -= lbytes;
- }
-
- putchar ('\n');
-
- return 1;
-}
-
-
-static int
-display_debug_info (struct dwarf_section *section, void *file)
-{
- return process_debug_info (section, file, 0);
-}
-
-
-static int
-display_debug_aranges (struct dwarf_section *section,
- void *file ATTRIBUTE_UNUSED)
-{
- unsigned char *start = section->start;
- unsigned char *end = start + section->size;
-
- printf (_("The section %s contains:\n\n"), section->name);
-
- while (start < end)
- {
- unsigned char *hdrptr;
- DWARF2_Internal_ARange arange;
- unsigned char *ranges;
- unsigned long length;
- unsigned long address;
- int excess;
- int offset_size;
- int initial_length_size;
-
- hdrptr = start;
-
- arange.ar_length = byte_get (hdrptr, 4);
- hdrptr += 4;
-
- if (arange.ar_length == 0xffffffff)
- {
- arange.ar_length = byte_get (hdrptr, 8);
- hdrptr += 8;
- offset_size = 8;
- initial_length_size = 12;
- }
- else
- {
- offset_size = 4;
- initial_length_size = 4;
- }
-
- arange.ar_version = byte_get (hdrptr, 2);
- hdrptr += 2;
-
- arange.ar_info_offset = byte_get (hdrptr, offset_size);
- hdrptr += offset_size;
-
- arange.ar_pointer_size = byte_get (hdrptr, 1);
- hdrptr += 1;
-
- arange.ar_segment_size = byte_get (hdrptr, 1);
- hdrptr += 1;
-
- if (arange.ar_version != 2 && arange.ar_version != 3)
- {
- warn (_("Only DWARF 2 and 3 aranges are currently supported.\n"));
- break;
- }
-
- printf (_(" Length: %ld\n"), arange.ar_length);
- printf (_(" Version: %d\n"), arange.ar_version);
- printf (_(" Offset into .debug_info: %lx\n"), arange.ar_info_offset);
- printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size);
- printf (_(" Segment Size: %d\n"), arange.ar_segment_size);
-
- printf (_("\n Address Length\n"));
-
- ranges = hdrptr;
-
- /* Must pad to an alignment boundary that is twice the pointer size. */
- excess = (hdrptr - start) % (2 * arange.ar_pointer_size);
- if (excess)
- ranges += (2 * arange.ar_pointer_size) - excess;
-
- for (;;)
- {
- address = byte_get (ranges, arange.ar_pointer_size);
-
- ranges += arange.ar_pointer_size;
-
- length = byte_get (ranges, arange.ar_pointer_size);
-
- ranges += arange.ar_pointer_size;
-
- /* A pair of zeros marks the end of the list. */
- if (address == 0 && length == 0)
- break;
-
- printf (" %8.8lx %lu\n", address, length);
- }
-
- start += arange.ar_length + initial_length_size;
- }
-
- printf ("\n");
-
- return 1;
-}
-
-static int
-display_debug_ranges (struct dwarf_section *section,
- void *file ATTRIBUTE_UNUSED)
-{
- unsigned char *start = section->start;
- unsigned char *section_end;
- unsigned long bytes;
- unsigned char *section_begin = start;
- unsigned int num_range_list = 0;
- unsigned long last_offset = 0;
- unsigned int first = 0;
- unsigned int i;
- unsigned int j;
- int seen_first_offset = 0;
- int use_debug_info = 1;
- unsigned char *next;
-
- bytes = section->size;
- section_end = start + bytes;
-
- if (bytes == 0)
- {
- printf (_("\nThe %s section is empty.\n"), section->name);
- return 0;
- }
-
- get_debug_info (file);
-
- /* Check the order of range list in .debug_info section. If
- offsets of range lists are in the ascending order, we can
- use `debug_information' directly. */
- for (i = 0; i < num_debug_info_entries; i++)
- {
- unsigned int num;
-
- num = debug_information [i].num_range_lists;
- num_range_list += num;
-
- /* Check if we can use `debug_information' directly. */
- if (use_debug_info && num != 0)
- {
- if (!seen_first_offset)
- {
- /* This is the first range list. */
- last_offset = debug_information [i].range_lists [0];
- first = i;
- seen_first_offset = 1;
- j = 1;
- }
- else
- j = 0;
-
- for (; j < num; j++)
- {
- if (last_offset >
- debug_information [i].range_lists [j])
- {
- use_debug_info = 0;
- break;
- }
- last_offset = debug_information [i].range_lists [j];
- }
- }
- }
-
- if (!use_debug_info)
- /* FIXME: Should we handle this case? */
- error (_("Range lists in .debug_info section aren't in ascending order!\n"));
-
- if (!seen_first_offset)
- error (_("No range lists in .debug_info section!\n"));
-
- if (debug_information [first].range_lists [0] != 0)
- warn (_("Range lists in %s section start at 0x%lx\n"),
- section->name, debug_information [first].range_lists [0]);
-
- printf (_("Contents of the %s section:\n\n"), section->name);
- printf (_(" Offset Begin End\n"));
-
- seen_first_offset = 0;
- for (i = first; i < num_debug_info_entries; i++)
- {
- unsigned long begin;
- unsigned long end;
- unsigned long offset;
- unsigned int pointer_size;
- unsigned long base_address;
-
- pointer_size = debug_information [i].pointer_size;
-
- for (j = 0; j < debug_information [i].num_range_lists; j++)
- {
- offset = debug_information [i].range_lists [j];
- next = section_begin + offset;
- base_address = debug_information [i].base_address;
-
- if (!seen_first_offset)
- seen_first_offset = 1;
- else
- {
- if (start < next)
- warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
- (long)(start - section_begin),
- (long)(next - section_begin), section->name);
- else if (start > next)
- warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
- (long)(start - section_begin),
- (long)(next - section_begin), section->name);
- }
- start = next;
-
- while (1)
- {
- begin = byte_get (start, pointer_size);
- start += pointer_size;
- end = byte_get (start, pointer_size);
- start += pointer_size;
-
- if (begin == 0 && end == 0)
- {
- printf (_(" %8.8lx <End of list>\n"), offset);
- break;
- }
-
- /* Check base address specifiers. */
- if (begin == -1UL && end != -1UL)
- {
- base_address = end;
- printf (" %8.8lx %8.8lx %8.8lx (base address)\n",
- offset, begin, end);
- continue;
- }
-
- printf (" %8.8lx %8.8lx %8.8lx",
- offset, begin + base_address, end + base_address);
-
- if (begin == end)
- fputs (_(" (start == end)"), stdout);
- else if (begin > end)
- fputs (_(" (start > end)"), stdout);
+ snprintf (buf, sizeof (buf), _("%s section data"), section->name);
+ section->address = sec->sh_addr;
+ section->size = sec->sh_size;
+ section->start = get_data (NULL, file, sec->sh_offset, 1,
+ sec->sh_size, buf);
- putchar ('\n');
- }
- }
- }
- putchar ('\n');
- return 1;
-}
+ if (debug_displays [debug].relocate)
+ debug_apply_rela_addends (file, sec, section->start);
-typedef struct Frame_Chunk
-{
- struct Frame_Chunk *next;
- unsigned char *chunk_start;
- int ncols;
- /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */
- short int *col_type;
- int *col_offset;
- char *augmentation;
- unsigned int code_factor;
- int data_factor;
- unsigned long pc_begin;
- unsigned long pc_range;
- int cfa_reg;
- int cfa_offset;
- int ra;
- unsigned char fde_encoding;
- unsigned char cfa_exp;
+ return section->start != NULL;
}
-Frame_Chunk;
-
-/* A marker for a col_type that means this column was never referenced
- in the frame info. */
-#define DW_CFA_unreferenced (-1)
-static void
-frame_need_space (Frame_Chunk *fc, int reg)
+void
+free_debug_section (enum dwarf_section_display_enum debug)
{
- int prev = fc->ncols;
+ struct dwarf_section *section = &debug_displays [debug].section;
- if (reg < fc->ncols)
+ if (section->start == NULL)
return;
- fc->ncols = reg + 1;
- fc->col_type = xcrealloc (fc->col_type, fc->ncols, sizeof (short int));
- fc->col_offset = xcrealloc (fc->col_offset, fc->ncols, sizeof (int));
-
- while (prev < fc->ncols)
- {
- fc->col_type[prev] = DW_CFA_unreferenced;
- fc->col_offset[prev] = 0;
- prev++;
- }
-}
-
-static void
-frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs)
-{
- int r;
- char tmp[100];
-
- if (*max_regs < fc->ncols)
- *max_regs = fc->ncols;
-
- if (*need_col_headers)
- {
- *need_col_headers = 0;
-
- printf (" LOC CFA ");
-
- for (r = 0; r < *max_regs; r++)
- if (fc->col_type[r] != DW_CFA_unreferenced)
- {
- if (r == fc->ra)
- printf ("ra ");
- else
- printf ("r%-4d", r);
- }
-
- printf ("\n");
- }
-
- printf ("%08lx ", fc->pc_begin);
- if (fc->cfa_exp)
- strcpy (tmp, "exp");
- else
- sprintf (tmp, "r%d%+d", fc->cfa_reg, fc->cfa_offset);
- printf ("%-8s ", tmp);
-
- for (r = 0; r < fc->ncols; r++)
- {
- if (fc->col_type[r] != DW_CFA_unreferenced)
- {
- switch (fc->col_type[r])
- {
- case DW_CFA_undefined:
- strcpy (tmp, "u");
- break;
- case DW_CFA_same_value:
- strcpy (tmp, "s");
- break;
- case DW_CFA_offset:
- sprintf (tmp, "c%+d", fc->col_offset[r]);
- break;
- case DW_CFA_register:
- sprintf (tmp, "r%d", fc->col_offset[r]);
- break;
- case DW_CFA_expression:
- strcpy (tmp, "exp");
- break;
- default:
- strcpy (tmp, "n/a");
- break;
- }
- printf ("%-5s", tmp);
- }
- }
- printf ("\n");
-}
-
-static int
-size_of_encoded_value (int encoding)
-{
- switch (encoding & 0x7)
- {
- default: /* ??? */
- case 0: return eh_addr_size;
- case 2: return 2;
- case 3: return 4;
- case 4: return 8;
- }
-}
-
-static bfd_vma
-get_encoded_value (unsigned char *data, int encoding)
-{
- int size = size_of_encoded_value (encoding);
- if (encoding & DW_EH_PE_signed)
- return byte_get_signed (data, size);
- else
- return byte_get (data, size);
-}
-
-#define GET(N) byte_get (start, N); start += N
-#define LEB() read_leb128 (start, & length_return, 0); start += length_return
-#define SLEB() read_leb128 (start, & length_return, 1); start += length_return
-
-static int
-display_debug_frames (struct dwarf_section *section,
- void *file ATTRIBUTE_UNUSED)
-{
- unsigned char *start = section->start;
- unsigned char *end = start + section->size;
- unsigned char *section_start = start;
- Frame_Chunk *chunks = 0;
- Frame_Chunk *remembered_state = 0;
- Frame_Chunk *rs;
- int is_eh = streq (section->name, ".eh_frame");
- unsigned int length_return;
- int max_regs = 0;
-
- printf (_("The section %s contains:\n"), section->name);
-
- while (start < end)
- {
- unsigned char *saved_start;
- unsigned char *block_end;
- unsigned long length;
- unsigned long cie_id;
- Frame_Chunk *fc;
- Frame_Chunk *cie;
- int need_col_headers = 1;
- unsigned char *augmentation_data = NULL;
- unsigned long augmentation_data_len = 0;
- int encoded_ptr_size = eh_addr_size;
- int offset_size;
- int initial_length_size;
-
- saved_start = start;
- length = byte_get (start, 4); start += 4;
-
- if (length == 0)
- {
- printf ("\n%08lx ZERO terminator\n\n",
- (unsigned long)(saved_start - section_start));
- return 1;
- }
-
- if (length == 0xffffffff)
- {
- length = byte_get (start, 8);
- start += 8;
- offset_size = 8;
- initial_length_size = 12;
- }
- else
- {
- offset_size = 4;
- initial_length_size = 4;
- }
-
- block_end = saved_start + length + initial_length_size;
- cie_id = byte_get (start, offset_size); start += offset_size;
-
- if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID))
- {
- int version;
-
- fc = xmalloc (sizeof (Frame_Chunk));
- memset (fc, 0, sizeof (Frame_Chunk));
-
- fc->next = chunks;
- chunks = fc;
- fc->chunk_start = saved_start;
- fc->ncols = 0;
- fc->col_type = xmalloc (sizeof (short int));
- fc->col_offset = xmalloc (sizeof (int));
- frame_need_space (fc, max_regs-1);
-
- version = *start++;
-
- fc->augmentation = (char *) start;
- start = (unsigned char *) strchr ((char *) start, '\0') + 1;
-
- if (fc->augmentation[0] == 'z')
- {
- fc->code_factor = LEB ();
- fc->data_factor = SLEB ();
- if (version == 1)
- {
- fc->ra = GET (1);
- }
- else
- {
- fc->ra = LEB ();
- }
- augmentation_data_len = LEB ();
- augmentation_data = start;
- start += augmentation_data_len;
- }
- else if (streq (fc->augmentation, "eh"))
- {
- start += eh_addr_size;
- fc->code_factor = LEB ();
- fc->data_factor = SLEB ();
- if (version == 1)
- {
- fc->ra = GET (1);
- }
- else
- {
- fc->ra = LEB ();
- }
- }
- else
- {
- fc->code_factor = LEB ();
- fc->data_factor = SLEB ();
- if (version == 1)
- {
- fc->ra = GET (1);
- }
- else
- {
- fc->ra = LEB ();
- }
- }
- cie = fc;
-
- if (do_debug_frames_interp)
- printf ("\n%08lx %08lx %08lx CIE \"%s\" cf=%d df=%d ra=%d\n",
- (unsigned long)(saved_start - section_start), length, cie_id,
- fc->augmentation, fc->code_factor, fc->data_factor,
- fc->ra);
- else
- {
- printf ("\n%08lx %08lx %08lx CIE\n",
- (unsigned long)(saved_start - section_start), length, cie_id);
- printf (" Version: %d\n", version);
- printf (" Augmentation: \"%s\"\n", fc->augmentation);
- printf (" Code alignment factor: %u\n", fc->code_factor);
- printf (" Data alignment factor: %d\n", fc->data_factor);
- printf (" Return address column: %d\n", fc->ra);
-
- if (augmentation_data_len)
- {
- unsigned long i;
- printf (" Augmentation data: ");
- for (i = 0; i < augmentation_data_len; ++i)
- printf (" %02x", augmentation_data[i]);
- putchar ('\n');
- }
- putchar ('\n');
- }
-
- if (augmentation_data_len)
- {
- unsigned char *p, *q;
- p = (unsigned char *) fc->augmentation + 1;
- q = augmentation_data;
-
- while (1)
- {
- if (*p == 'L')
- q++;
- else if (*p == 'P')
- q += 1 + size_of_encoded_value (*q);
- else if (*p == 'R')
- fc->fde_encoding = *q++;
- else
- break;
- p++;
- }
-
- if (fc->fde_encoding)
- encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
- }
-
- frame_need_space (fc, fc->ra);
- }
- else
- {
- unsigned char *look_for;
- static Frame_Chunk fde_fc;
-
- fc = & fde_fc;
- memset (fc, 0, sizeof (Frame_Chunk));
-
- look_for = is_eh ? start - 4 - cie_id : section_start + cie_id;
-
- for (cie = chunks; cie ; cie = cie->next)
- if (cie->chunk_start == look_for)
- break;
-
- if (!cie)
- {
- warn ("Invalid CIE pointer %08lx in FDE at %p\n",
- cie_id, saved_start);
- start = block_end;
- fc->ncols = 0;
- fc->col_type = xmalloc (sizeof (short int));
- fc->col_offset = xmalloc (sizeof (int));
- frame_need_space (fc, max_regs - 1);
- cie = fc;
- fc->augmentation = "";
- fc->fde_encoding = 0;
- }
- else
- {
- fc->ncols = cie->ncols;
- fc->col_type = xcmalloc (fc->ncols, sizeof (short int));
- fc->col_offset = xcmalloc (fc->ncols, sizeof (int));
- memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int));
- memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int));
- fc->augmentation = cie->augmentation;
- fc->code_factor = cie->code_factor;
- fc->data_factor = cie->data_factor;
- fc->cfa_reg = cie->cfa_reg;
- fc->cfa_offset = cie->cfa_offset;
- fc->ra = cie->ra;
- frame_need_space (fc, max_regs-1);
- fc->fde_encoding = cie->fde_encoding;
- }
-
- if (fc->fde_encoding)
- encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
-
- fc->pc_begin = get_encoded_value (start, fc->fde_encoding);
- if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
- /* Don't adjust for relocatable file since there's
- invariably a pcrel reloc here, which we haven't
- applied. */
- && !is_relocatable)
- fc->pc_begin += section->address + (start - section_start);
- start += encoded_ptr_size;
- fc->pc_range = byte_get (start, encoded_ptr_size);
- start += encoded_ptr_size;
-
- if (cie->augmentation[0] == 'z')
- {
- augmentation_data_len = LEB ();
- augmentation_data = start;
- start += augmentation_data_len;
- }
-
- printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=%08lx..%08lx\n",
- (unsigned long)(saved_start - section_start), length, cie_id,
- (unsigned long)(cie->chunk_start - section_start),
- fc->pc_begin, fc->pc_begin + fc->pc_range);
- if (! do_debug_frames_interp && augmentation_data_len)
- {
- unsigned long i;
-
- printf (" Augmentation data: ");
- for (i = 0; i < augmentation_data_len; ++i)
- printf (" %02x", augmentation_data[i]);
- putchar ('\n');
- putchar ('\n');
- }
- }
-
- /* At this point, fc is the current chunk, cie (if any) is set, and
- we're about to interpret instructions for the chunk. */
- /* ??? At present we need to do this always, since this sizes the
- fc->col_type and fc->col_offset arrays, which we write into always.
- We should probably split the interpreted and non-interpreted bits
- into two different routines, since there's so much that doesn't
- really overlap between them. */
- if (1 || do_debug_frames_interp)
- {
- /* Start by making a pass over the chunk, allocating storage
- and taking note of what registers are used. */
- unsigned char *tmp = start;
-
- while (start < block_end)
- {
- unsigned op, opa;
- unsigned long reg, tmp;
-
- op = *start++;
- opa = op & 0x3f;
- if (op & 0xc0)
- op &= 0xc0;
-
- /* Warning: if you add any more cases to this switch, be
- sure to add them to the corresponding switch below. */
- switch (op)
- {
- case DW_CFA_advance_loc:
- break;
- case DW_CFA_offset:
- LEB ();
- frame_need_space (fc, opa);
- fc->col_type[opa] = DW_CFA_undefined;
- break;
- case DW_CFA_restore:
- frame_need_space (fc, opa);
- fc->col_type[opa] = DW_CFA_undefined;
- break;
- case DW_CFA_set_loc:
- start += encoded_ptr_size;
- break;
- case DW_CFA_advance_loc1:
- start += 1;
- break;
- case DW_CFA_advance_loc2:
- start += 2;
- break;
- case DW_CFA_advance_loc4:
- start += 4;
- break;
- case DW_CFA_offset_extended:
- reg = LEB (); LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_restore_extended:
- reg = LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_undefined:
- reg = LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_same_value:
- reg = LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_register:
- reg = LEB (); LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_def_cfa:
- LEB (); LEB ();
- break;
- case DW_CFA_def_cfa_register:
- LEB ();
- break;
- case DW_CFA_def_cfa_offset:
- LEB ();
- break;
- case DW_CFA_def_cfa_expression:
- tmp = LEB ();
- start += tmp;
- break;
- case DW_CFA_expression:
- reg = LEB ();
- tmp = LEB ();
- start += tmp;
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_offset_extended_sf:
- reg = LEB (); SLEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_def_cfa_sf:
- LEB (); SLEB ();
- break;
- case DW_CFA_def_cfa_offset_sf:
- SLEB ();
- break;
- case DW_CFA_MIPS_advance_loc8:
- start += 8;
- break;
- case DW_CFA_GNU_args_size:
- LEB ();
- break;
- case DW_CFA_GNU_negative_offset_extended:
- reg = LEB (); LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
-
- default:
- break;
- }
- }
- start = tmp;
- }
-
- /* Now we know what registers are used, make a second pass over
- the chunk, this time actually printing out the info. */
-
- while (start < block_end)
- {
- unsigned op, opa;
- unsigned long ul, reg, roffs;
- long l, ofs;
- bfd_vma vma;
-
- op = *start++;
- opa = op & 0x3f;
- if (op & 0xc0)
- op &= 0xc0;
-
- /* Warning: if you add any more cases to this switch, be
- sure to add them to the corresponding switch above. */
- switch (op)
- {
- case DW_CFA_advance_loc:
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_advance_loc: %d to %08lx\n",
- opa * fc->code_factor,
- fc->pc_begin + opa * fc->code_factor);
- fc->pc_begin += opa * fc->code_factor;
- break;
-
- case DW_CFA_offset:
- roffs = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_offset: r%d at cfa%+ld\n",
- opa, roffs * fc->data_factor);
- fc->col_type[opa] = DW_CFA_offset;
- fc->col_offset[opa] = roffs * fc->data_factor;
- break;
-
- case DW_CFA_restore:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_restore: r%d\n", opa);
- fc->col_type[opa] = cie->col_type[opa];
- fc->col_offset[opa] = cie->col_offset[opa];
- break;
-
- case DW_CFA_set_loc:
- vma = get_encoded_value (start, fc->fde_encoding);
- if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
- && !is_relocatable)
- vma += section->address + (start - section_start);
- start += encoded_ptr_size;
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_set_loc: %08lx\n", (unsigned long)vma);
- fc->pc_begin = vma;
- break;
-
- case DW_CFA_advance_loc1:
- ofs = byte_get (start, 1); start += 1;
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_advance_loc1: %ld to %08lx\n",
- ofs * fc->code_factor,
- fc->pc_begin + ofs * fc->code_factor);
- fc->pc_begin += ofs * fc->code_factor;
- break;
-
- case DW_CFA_advance_loc2:
- ofs = byte_get (start, 2); start += 2;
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_advance_loc2: %ld to %08lx\n",
- ofs * fc->code_factor,
- fc->pc_begin + ofs * fc->code_factor);
- fc->pc_begin += ofs * fc->code_factor;
- break;
-
- case DW_CFA_advance_loc4:
- ofs = byte_get (start, 4); start += 4;
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_advance_loc4: %ld to %08lx\n",
- ofs * fc->code_factor,
- fc->pc_begin + ofs * fc->code_factor);
- fc->pc_begin += ofs * fc->code_factor;
- break;
-
- case DW_CFA_offset_extended:
- reg = LEB ();
- roffs = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_offset_extended: r%ld at cfa%+ld\n",
- reg, roffs * fc->data_factor);
- fc->col_type[reg] = DW_CFA_offset;
- fc->col_offset[reg] = roffs * fc->data_factor;
- break;
-
- case DW_CFA_restore_extended:
- reg = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_restore_extended: r%ld\n", reg);
- fc->col_type[reg] = cie->col_type[reg];
- fc->col_offset[reg] = cie->col_offset[reg];
- break;
-
- case DW_CFA_undefined:
- reg = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_undefined: r%ld\n", reg);
- fc->col_type[reg] = DW_CFA_undefined;
- fc->col_offset[reg] = 0;
- break;
-
- case DW_CFA_same_value:
- reg = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_same_value: r%ld\n", reg);
- fc->col_type[reg] = DW_CFA_same_value;
- fc->col_offset[reg] = 0;
- break;
-
- case DW_CFA_register:
- reg = LEB ();
- roffs = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_register: r%ld in r%ld\n", reg, roffs);
- fc->col_type[reg] = DW_CFA_register;
- fc->col_offset[reg] = roffs;
- break;
-
- case DW_CFA_remember_state:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_remember_state\n");
- rs = xmalloc (sizeof (Frame_Chunk));
- rs->ncols = fc->ncols;
- rs->col_type = xcmalloc (rs->ncols, sizeof (short int));
- rs->col_offset = xcmalloc (rs->ncols, sizeof (int));
- memcpy (rs->col_type, fc->col_type, rs->ncols);
- memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int));
- rs->next = remembered_state;
- remembered_state = rs;
- break;
-
- case DW_CFA_restore_state:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_restore_state\n");
- rs = remembered_state;
- if (rs)
- {
- remembered_state = rs->next;
- frame_need_space (fc, rs->ncols-1);
- memcpy (fc->col_type, rs->col_type, rs->ncols);
- memcpy (fc->col_offset, rs->col_offset,
- rs->ncols * sizeof (int));
- free (rs->col_type);
- free (rs->col_offset);
- free (rs);
- }
- else if (do_debug_frames_interp)
- printf ("Mismatched DW_CFA_restore_state\n");
- break;
-
- case DW_CFA_def_cfa:
- fc->cfa_reg = LEB ();
- fc->cfa_offset = LEB ();
- fc->cfa_exp = 0;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa: r%d ofs %d\n",
- fc->cfa_reg, fc->cfa_offset);
- break;
-
- case DW_CFA_def_cfa_register:
- fc->cfa_reg = LEB ();
- fc->cfa_exp = 0;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_reg: r%d\n", fc->cfa_reg);
- break;
-
- case DW_CFA_def_cfa_offset:
- fc->cfa_offset = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset);
- break;
-
- case DW_CFA_nop:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_nop\n");
- break;
-
- case DW_CFA_def_cfa_expression:
- ul = LEB ();
- if (! do_debug_frames_interp)
- {
- printf (" DW_CFA_def_cfa_expression (");
- decode_location_expression (start, eh_addr_size, ul, 0);
- printf (")\n");
- }
- fc->cfa_exp = 1;
- start += ul;
- break;
-
- case DW_CFA_expression:
- reg = LEB ();
- ul = LEB ();
- if (! do_debug_frames_interp)
- {
- printf (" DW_CFA_expression: r%ld (", reg);
- decode_location_expression (start, eh_addr_size, ul, 0);
- printf (")\n");
- }
- fc->col_type[reg] = DW_CFA_expression;
- start += ul;
- break;
-
- case DW_CFA_offset_extended_sf:
- reg = LEB ();
- l = SLEB ();
- frame_need_space (fc, reg);
- if (! do_debug_frames_interp)
- printf (" DW_CFA_offset_extended_sf: r%ld at cfa%+ld\n",
- reg, l * fc->data_factor);
- fc->col_type[reg] = DW_CFA_offset;
- fc->col_offset[reg] = l * fc->data_factor;
- break;
-
- case DW_CFA_def_cfa_sf:
- fc->cfa_reg = LEB ();
- fc->cfa_offset = SLEB ();
- fc->cfa_offset = fc->cfa_offset * fc->data_factor;
- fc->cfa_exp = 0;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_sf: r%d ofs %d\n",
- fc->cfa_reg, fc->cfa_offset);
- break;
-
- case DW_CFA_def_cfa_offset_sf:
- fc->cfa_offset = SLEB ();
- fc->cfa_offset = fc->cfa_offset * fc->data_factor;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset);
- break;
-
- case DW_CFA_MIPS_advance_loc8:
- ofs = byte_get (start, 8); start += 8;
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_MIPS_advance_loc8: %ld to %08lx\n",
- ofs * fc->code_factor,
- fc->pc_begin + ofs * fc->code_factor);
- fc->pc_begin += ofs * fc->code_factor;
- break;
-
- case DW_CFA_GNU_window_save:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_GNU_window_save\n");
- break;
-
- case DW_CFA_GNU_args_size:
- ul = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_GNU_args_size: %ld\n", ul);
- break;
-
- case DW_CFA_GNU_negative_offset_extended:
- reg = LEB ();
- l = - LEB ();
- frame_need_space (fc, reg);
- if (! do_debug_frames_interp)
- printf (" DW_CFA_GNU_negative_offset_extended: r%ld at cfa%+ld\n",
- reg, l * fc->data_factor);
- fc->col_type[reg] = DW_CFA_offset;
- fc->col_offset[reg] = l * fc->data_factor;
- break;
-
- default:
- warn (_("unsupported or unknown DW_CFA_%d\n"), op);
- start = block_end;
- }
- }
-
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
-
- start = block_end;
- }
-
- printf ("\n");
-
- return 1;
-}
-
-#undef GET
-#undef LEB
-#undef SLEB
-
-static int
-display_debug_not_supported (struct dwarf_section *section,
- void *file ATTRIBUTE_UNUSED)
-{
- printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
- section->name);
-
- return 1;
-}
-
-/* A structure containing the name of a debug section
- and a pointer to a function that can decode it. */
-static struct
-{
- const char *const name;
- int (*display) (struct dwarf_section *, void *);
- unsigned int relocate : 1;
+ free ((char *) section->start);
+ section->start = NULL;
+ section->address = 0;
+ section->size = 0;
}
-debug_displays[] =
-{
- { ".debug_abbrev", display_debug_abbrev, 0 },
- { ".debug_aranges", display_debug_aranges, 0 },
- { ".debug_frame", display_debug_frames, 1 },
- { ".debug_info", display_debug_info, 1 },
- { ".debug_line", display_debug_lines, 0 },
- { ".debug_pubnames", display_debug_pubnames, 0 },
- { ".eh_frame", display_debug_frames, 1 },
- { ".debug_macinfo", display_debug_macinfo, 0 },
- { ".debug_str", display_debug_str, 0 },
- { ".debug_loc", display_debug_loc, 0 },
- { ".debug_pubtypes", display_debug_pubnames, 0 },
- { ".debug_ranges", display_debug_ranges, 0 },
- { ".debug_static_func", display_debug_not_supported, 0 },
- { ".debug_static_vars", display_debug_not_supported, 0 },
- { ".debug_types", display_debug_not_supported, 0 },
- { ".debug_weaknames", display_debug_not_supported, 0 }
-};
static int
display_debug_section (Elf_Internal_Shdr *section, FILE *file)
@@ -11182,7 +7451,7 @@ display_debug_section (Elf_Internal_Shdr *section, FILE *file)
char *name = SECTION_NAME (section);
bfd_size_type length;
int result = 1;
- int i;
+ enum dwarf_section_display_enum i;
length = section->sh_size;
if (length == 0)
@@ -11195,36 +7464,23 @@ display_debug_section (Elf_Internal_Shdr *section, FILE *file)
name = ".debug_info";
/* See if we know how to display the contents of this section. */
- for (i = NUM_ELEM (debug_displays); i--;)
- if (streq (debug_displays[i].name, name))
+ for (i = 0; i < max; i++)
+ if (streq (debug_displays[i].section.name, name))
{
- struct dwarf_section sec;
-
- sec.name = name;
- sec.address = section->sh_addr;
- sec.size = section->sh_size;
- sec.start = get_data (NULL, file, section->sh_offset, 1,
- length, _("debug section data"));
- if (sec.start == NULL)
- {
- result = 0;
- break;
- }
-
- if (!debug_displays[i].relocate
- || debug_apply_rela_addends (file, section, sec.start))
- result &= debug_displays[i].display (&sec, file);
+ struct dwarf_section *sec = &debug_displays [i].section;
- free (sec.start);
+ if (load_debug_section (i, file))
+ {
+ result &= debug_displays[i].display (sec, file);
- /* If we loaded in the abbrev section
- at some point, we must release it here. */
- free_abbrevs ();
+ if (i != info && i != abbrev)
+ free_debug_section (i);
+ }
break;
}
- if (i == -1)
+ if (i == max)
{
printf (_("Unrecognized debug section: %s\n"), name);
result = 0;
@@ -12304,22 +8560,7 @@ process_object (char *file_name, FILE *file)
section_groups = NULL;
}
- if (debug_information)
- {
- for (i = 0; i < num_debug_info_entries; i++)
- {
- if (!debug_information [i].max_loc_offsets)
- {
- free (debug_information [i].loc_offsets);
- free (debug_information [i].have_frame_base);
- }
- if (!debug_information [i].max_range_lists)
- free (debug_information [i].range_lists);
- }
- free (debug_information);
- debug_information = NULL;
- num_debug_info_entries = 0;
- }
+ free_debug_memory ();
return 0;
}
generated by cgit v1.1 at 2024-12-16 10:12:38 +0000