/* objdump.c -- dump information about an object file.
- Copyright (C) 1990-2021 Free Software Foundation, Inc.
+ Copyright (C) 1990-2022 Free Software Foundation, Inc.
This file is part of GNU Binutils.
#include "progress.h"
#include "bucomm.h"
#include "elfcomm.h"
+#include "demanguse.h"
#include "dwarf.h"
#include "ctf-api.h"
#include "getopt.h"
#include <sys/mman.h>
#endif
+#ifdef HAVE_LIBDEBUGINFOD
+#include <elfutils/debuginfod.h>
+#endif
+
/* Internal headers for the ELF .stab-dump code - sorry. */
#define BYTES_IN_WORD 32
#include "aout/aout64.h"
static bool extended_color_output = false; /* --visualize-jumps=extended-color. */
static int process_links = false; /* --process-links. */
+static enum color_selection
+ {
+ on_if_terminal_output,
+ on, /* --disassembler-color=color. */
+ off, /* --disassembler-color=off. */
+ extended /* --disassembler-color=extended-color. */
+ } disassembler_color = on_if_terminal_output;
+
+static int dump_any_debugging;
static int demangle_flags = DMGL_ANSI | DMGL_PARAMS;
+/* This is reset to false each time we enter the disassembler, and set true
+ when the disassembler emits something in the dis_style_comment_start
+ style. Once this is true, all further output on that line is done in
+ the comment style. This only has an effect when disassembler coloring
+ is turned on. */
+static bool disassembler_in_comment = false;
+
/* A structure to record the sections mentioned in -j switches. */
struct only
{
-WN,--dwarf=no-follow-links\n\
Do not follow links to separate debug info files\n\
(default)\n"));
+#endif
+#if HAVE_LIBDEBUGINFOD
+ fprintf (stream, _("\
+ -WD --dwarf=use-debuginfod\n\
+ When following links, also query debuginfod servers (default)\n"));
+ fprintf (stream, _("\
+ -WE --dwarf=do-not-use-debuginfod\n\
+ When following links, do not query debuginfod servers\n"));
#endif
fprintf (stream, _("\
-L, --process-links Display the contents of non-debug sections in\n\
fprintf (stream, _("\
-F, --file-offsets Include file offsets when displaying information\n"));
fprintf (stream, _("\
- -C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
- The STYLE, if specified, can be `auto', `gnu',\n\
- `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\
- or `gnat'\n"));
+ -C, --demangle[=STYLE] Decode mangled/processed symbol names\n"));
+ display_demangler_styles (stream, _("\
+ STYLE can be "));
fprintf (stream, _("\
--recurse-limit Enable a limit on recursion whilst demangling\n\
(default)\n"));
Use extended 8-bit color codes\n"));
fprintf (stream, _("\
--visualize-jumps=off Disable jump visualization\n\n"));
+ fprintf (stream, _("\
+ --disassembler-color=off Disable disassembler color output.\n\n"));
+ fprintf (stream, _("\
+ --disassembler-color=color Use basic colors in disassembler output.\n\n"));
+ fprintf (stream, _("\
+ --disassembler-color=extended-color Use 8-bit colors in disassembler output.\n\n"));
list_supported_targets (program_name, stream);
list_supported_architectures (program_name, stream);
OPTION_CTF,
OPTION_CTF_PARENT,
#endif
- OPTION_VISUALIZE_JUMPS
+ OPTION_VISUALIZE_JUMPS,
+ OPTION_DISASSEMBLER_COLOR
};
static struct option long_options[]=
{"version", no_argument, NULL, 'V'},
{"visualize-jumps", optional_argument, 0, OPTION_VISUALIZE_JUMPS},
{"wide", no_argument, NULL, 'w'},
+ {"disassembler-color", required_argument, NULL, OPTION_DISASSEMBLER_COLOR},
{NULL, no_argument, NULL, 0}
};
\f
if (*p == '\0')
--p;
}
- (*inf->fprintf_func) (inf->stream, "%s", p);
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_address, "%s", p);
}
/* Print the name of a symbol. */
if (inf != NULL)
{
- (*inf->fprintf_func) (inf->stream, "%s", name);
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_symbol, "%s", name);
if (version_string && *version_string != '\0')
- (*inf->fprintf_func) (inf->stream, hidden ? "@%s" : "@@%s",
- version_string);
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_symbol,
+ hidden ? "@%s" : "@@%s",
+ version_string);
}
else
{
if (!no_addresses)
{
objdump_print_value (vma, inf, skip_zeroes);
- (*inf->fprintf_func) (inf->stream, " ");
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_text, " ");
}
if (sym == NULL)
{
bfd_vma secaddr;
- (*inf->fprintf_func) (inf->stream, "<%s",
- sanitize_string (bfd_section_name (sec)));
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_text,"<");
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_symbol, "%s",
+ sanitize_string (bfd_section_name (sec)));
secaddr = bfd_section_vma (sec);
if (vma < secaddr)
{
- (*inf->fprintf_func) (inf->stream, "-0x");
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_immediate,
+ "-0x");
objdump_print_value (secaddr - vma, inf, true);
}
else if (vma > secaddr)
{
- (*inf->fprintf_func) (inf->stream, "+0x");
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_immediate, "+0x");
objdump_print_value (vma - secaddr, inf, true);
}
- (*inf->fprintf_func) (inf->stream, ">");
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_text, ">");
}
else
{
- (*inf->fprintf_func) (inf->stream, "<");
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_text, "<");
objdump_print_symname (abfd, inf, sym);
;
else if (bfd_asymbol_value (sym) > vma)
{
- (*inf->fprintf_func) (inf->stream, "-0x");
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_immediate,"-0x");
objdump_print_value (bfd_asymbol_value (sym) - vma, inf, true);
}
else if (vma > bfd_asymbol_value (sym))
{
- (*inf->fprintf_func) (inf->stream, "+0x");
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_immediate, "+0x");
objdump_print_value (vma - bfd_asymbol_value (sym), inf, true);
}
- (*inf->fprintf_func) (inf->stream, ">");
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_text, ">");
}
if (display_file_offsets)
- inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
- (long int)(sec->filepos + (vma - sec->vma)));
+ inf->fprintf_styled_func (inf->stream, dis_style_text,
+ _(" (File Offset: 0x%lx)"),
+ (long int)(sec->filepos + (vma - sec->vma)));
}
/* Print an address (VMA), symbolically if possible.
{
if (!no_addresses)
{
- (*inf->fprintf_func) (inf->stream, "0x");
+ (*inf->fprintf_styled_func) (inf->stream, dis_style_address, "0x");
objdump_print_value (vma, inf, skip_zeroes);
}
if (display_file_offsets)
- inf->fprintf_func (inf->stream, _(" (File Offset: 0x%lx)"),
- (long int) (inf->section->filepos
- + (vma - inf->section->vma)));
+ inf->fprintf_styled_func (inf->stream, dis_style_text,
+ _(" (File Offset: 0x%lx)"),
+ (long int) (inf->section->filepos
+ + (vma - inf->section->vma)));
return;
}
#define SHOW_PRECEDING_CONTEXT_LINES (5)
-/* Read a complete file into memory. */
+#if HAVE_LIBDEBUGINFOD
+/* Return a hex string represention of the build-id. */
+
+unsigned char *
+get_build_id (void * data)
+{
+ unsigned i;
+ char * build_id_str;
+ bfd * abfd = (bfd *) data;
+ const struct bfd_build_id * build_id;
+
+ build_id = abfd->build_id;
+ if (build_id == NULL)
+ return NULL;
+
+ build_id_str = malloc (build_id->size * 2 + 1);
+ if (build_id_str == NULL)
+ return NULL;
+
+ for (i = 0; i < build_id->size; i++)
+ sprintf (build_id_str + (i * 2), "%02x", build_id->data[i]);
+ build_id_str[build_id->size * 2] = '\0';
+
+ return (unsigned char *) build_id_str;
+}
+
+/* Search for a separate debug file matching ABFD's build-id. */
+
+static bfd *
+find_separate_debug (const bfd * abfd)
+{
+ const struct bfd_build_id * build_id = abfd->build_id;
+ separate_info * i = first_separate_info;
+
+ if (build_id == NULL || i == NULL)
+ return NULL;
+
+ while (i != NULL)
+ {
+ const bfd * i_bfd = (bfd *) i->handle;
+
+ if (abfd != NULL && i_bfd->build_id != NULL)
+ {
+ const unsigned char * data = i_bfd->build_id->data;
+ size_t size = i_bfd->build_id->size;
+
+ if (size == build_id->size
+ && memcmp (data, build_id->data, size) == 0)
+ return (bfd *) i->handle;
+ }
+
+ i = i->next;
+ }
+
+ return NULL;
+}
+
+/* Search for a separate debug file matching ABFD's .gnu_debugaltlink
+ build-id. */
+
+static bfd *
+find_alt_debug (const bfd * abfd)
+{
+ size_t namelen;
+ size_t id_len;
+ const char * name;
+ struct dwarf_section * section;
+ const struct bfd_build_id * build_id = abfd->build_id;
+ separate_info * i = first_separate_info;
+
+ if (i == NULL
+ || build_id == NULL
+ || !load_debug_section (gnu_debugaltlink, (void *) abfd))
+ return NULL;
+
+ section = &debug_displays[gnu_debugaltlink].section;
+ if (section == NULL)
+ return NULL;
+
+ name = (const char *) section->start;
+ namelen = strnlen (name, section->size) + 1;
+ if (namelen == 1)
+ return NULL;
+ if (namelen >= section->size)
+ return NULL;
+
+ id_len = section->size - namelen;
+ if (id_len < 0x14)
+ return NULL;
+
+ /* Compare the .gnu_debugaltlink build-id with the build-ids of the
+ known separate_info files. */
+ while (i != NULL)
+ {
+ const bfd * i_bfd = (bfd *) i->handle;
+
+ if (i_bfd != NULL && i_bfd->build_id != NULL)
+ {
+ const unsigned char * data = i_bfd->build_id->data;
+ size_t size = i_bfd->build_id->size;
+
+ if (id_len == size
+ && memcmp (section->start + namelen, data, size) == 0)
+ return (bfd *) i->handle;
+ }
+
+ i = i->next;
+ }
+
+ return NULL;
+}
+
+#endif /* HAVE_LIBDEBUGINFOD */
+
+/* Reads the contents of file FN into memory. Returns a pointer to the buffer.
+ Also returns the size of the buffer in SIZE_RETURN and a filled out
+ stat structure in FST_RETURN. Returns NULL upon failure. */
static const char *
-slurp_file (const char *fn, size_t *size, struct stat *fst)
+slurp_file (const char * fn,
+ size_t * size_return,
+ struct stat * fst_return,
+ bfd * abfd ATTRIBUTE_UNUSED)
{
#ifdef HAVE_MMAP
- int ps = getpagesize ();
+ int ps;
size_t msize;
#endif
const char *map;
- int fd = open (fn, O_RDONLY | O_BINARY);
+ int fd;
+
+ /* Paranoia. */
+ if (fn == NULL || * fn == 0 || size_return == NULL || fst_return == NULL)
+ return NULL;
+
+ fd = open (fn, O_RDONLY | O_BINARY);
+
+#if HAVE_LIBDEBUGINFOD
+ if (fd < 0 && use_debuginfod && fn[0] == '/' && abfd != NULL)
+ {
+ unsigned char * build_id;
+ debuginfod_client * client;
+
+ client = debuginfod_begin ();
+ if (client == NULL)
+ return NULL;
+
+ build_id = get_build_id (abfd);
+ fd = debuginfod_find_source (client, build_id, 0, fn, NULL);
+ free (build_id);
+ debuginfod_end (client);
+ }
+#endif
if (fd < 0)
return NULL;
- if (fstat (fd, fst) < 0)
+
+ if (fstat (fd, fst_return) < 0)
{
close (fd);
return NULL;
}
- *size = fst->st_size;
+
+ *size_return = fst_return->st_size;
+
#ifdef HAVE_MMAP
- msize = (*size + ps - 1) & ~(ps - 1);
+ ps = getpagesize ();
+ msize = (*size_return + ps - 1) & ~(ps - 1);
map = mmap (NULL, msize, PROT_READ, MAP_SHARED, fd, 0);
if (map != (char *) -1L)
{
return map;
}
#endif
- map = (const char *) malloc (*size);
- if (!map || (size_t) read (fd, (char *) map, *size) != *size)
+
+ map = (const char *) malloc (*size_return);
+ if (!map || (size_t) read (fd, (char *) map, *size_return) != *size_return)
{
free ((void *) map);
map = NULL;
}
/* Tries to open MODNAME, and if successful adds a node to print_files
- linked list and returns that node. Returns NULL on failure. */
+ linked list and returns that node. Also fills in the stat structure
+ pointed to by FST_RETURN. Returns NULL on failure. */
static struct print_file_list *
-try_print_file_open (const char *origname, const char *modname, struct stat *fst)
+try_print_file_open (const char * origname,
+ const char * modname,
+ struct stat * fst_return,
+ bfd * abfd)
{
struct print_file_list *p;
p = (struct print_file_list *) xmalloc (sizeof (struct print_file_list));
- p->map = slurp_file (modname, &p->mapsize, fst);
+ p->map = slurp_file (modname, &p->mapsize, fst_return, abfd);
if (p->map == NULL)
{
free (p);
struct stat fst;
int i;
- p = try_print_file_open (filename, filename, &fst);
+ p = try_print_file_open (filename, filename, &fst, abfd);
if (p == NULL)
{
if (include_path_count == 0)
char *modname = concat (include_paths[i], "/", fname,
(const char *) 0);
- p = try_print_file_open (filename, modname, &fst);
+ p = try_print_file_open (filename, modname, &fst, abfd);
if (p)
break;
if (! with_line_numbers && ! with_source_code)
return;
+#ifdef HAVE_LIBDEBUGINFOD
+ {
+ bfd *debug_bfd;
+ const char *alt_filename = NULL;
+
+ if (use_debuginfod)
+ {
+ bfd *alt_bfd;
+
+ /* PR 29075: Check for separate debuginfo and .gnu_debugaltlink files.
+ They need to be passed to bfd_find_nearest_line_with_alt in case they
+ were downloaded from debuginfod. Otherwise libbfd will attempt to
+ search for them and fail to locate them. */
+ debug_bfd = find_separate_debug (abfd);
+ if (debug_bfd == NULL)
+ debug_bfd = abfd;
+
+ alt_bfd = find_alt_debug (debug_bfd);
+ if (alt_bfd != NULL)
+ alt_filename = bfd_get_filename (alt_bfd);
+ }
+ else
+ debug_bfd = abfd;
+
+ bfd_set_error (bfd_error_no_error);
+ if (! bfd_find_nearest_line_with_alt (debug_bfd, alt_filename,
+ section, syms,
+ addr_offset, &filename,
+ &functionname, &linenumber,
+ &discriminator))
+ {
+ if (bfd_get_error () == bfd_error_no_error)
+ return;
+ if (! bfd_find_nearest_line_discriminator (abfd, section, syms,
+ addr_offset, &filename,
+ &functionname, &linenumber,
+ &discriminator))
+ return;
+ }
+ }
+#else
if (! bfd_find_nearest_line_discriminator (abfd, section, syms, addr_offset,
&filename, &functionname,
&linenumber, &discriminator))
return;
+#endif
if (filename != NULL && *filename == '\0')
filename = NULL;
return n;
}
+/* Return an integer greater than, or equal to zero, representing the color
+ for STYLE, or -1 if no color should be used. */
+
+static int
+objdump_color_for_disassembler_style (enum disassembler_style style)
+{
+ int color = -1;
+
+ if (style == dis_style_comment_start)
+ disassembler_in_comment = true;
+
+ if (disassembler_color == on)
+ {
+ if (disassembler_in_comment)
+ return color;
+
+ switch (style)
+ {
+ case dis_style_symbol:
+ color = 32;
+ break;
+ case dis_style_assembler_directive:
+ case dis_style_sub_mnemonic:
+ case dis_style_mnemonic:
+ color = 33;
+ break;
+ case dis_style_register:
+ color = 34;
+ break;
+ case dis_style_address:
+ case dis_style_address_offset:
+ case dis_style_immediate:
+ color = 35;
+ break;
+ default:
+ case dis_style_text:
+ color = -1;
+ break;
+ }
+ }
+ else if (disassembler_color == extended)
+ {
+ if (disassembler_in_comment)
+ return 250;
+
+ switch (style)
+ {
+ case dis_style_symbol:
+ color = 40;
+ break;
+ case dis_style_assembler_directive:
+ case dis_style_sub_mnemonic:
+ case dis_style_mnemonic:
+ color = 142;
+ break;
+ case dis_style_register:
+ color = 27;
+ break;
+ case dis_style_address:
+ case dis_style_address_offset:
+ case dis_style_immediate:
+ color = 134;
+ break;
+ default:
+ case dis_style_text:
+ color = -1;
+ break;
+ }
+ }
+ else if (disassembler_color != off)
+ bfd_fatal (_("disassembly color not correctly selected"));
+
+ return color;
+}
+
+/* Like objdump_sprintf, but add in escape sequences to highlight the
+ content according to STYLE. */
+
+static int ATTRIBUTE_PRINTF_3
+objdump_styled_sprintf (SFILE *f, enum disassembler_style style,
+ const char *format, ...)
+{
+ size_t n;
+ va_list args;
+ int color = objdump_color_for_disassembler_style (style);
+
+ if (color >= 0)
+ {
+ while (1)
+ {
+ size_t space = f->alloc - f->pos;
+
+ if (disassembler_color == on)
+ n = snprintf (f->buffer + f->pos, space, "\033[%dm", color);
+ else
+ n = snprintf (f->buffer + f->pos, space, "\033[38;5;%dm", color);
+ if (space > n)
+ break;
+
+ f->alloc = (f->alloc + n) * 2;
+ f->buffer = (char *) xrealloc (f->buffer, f->alloc);
+ }
+ f->pos += n;
+ }
+
+ while (1)
+ {
+ size_t space = f->alloc - f->pos;
+
+ va_start (args, format);
+ n = vsnprintf (f->buffer + f->pos, space, format, args);
+ va_end (args);
+
+ if (space > n)
+ break;
+
+ f->alloc = (f->alloc + n) * 2;
+ f->buffer = (char *) xrealloc (f->buffer, f->alloc);
+ }
+ f->pos += n;
+
+ if (color >= 0)
+ {
+ while (1)
+ {
+ size_t space = f->alloc - f->pos;
+
+ n = snprintf (f->buffer + f->pos, space, "\033[0m");
+
+ if (space > n)
+ break;
+
+ f->alloc = (f->alloc + n) * 2;
+ f->buffer = (char *) xrealloc (f->buffer, f->alloc);
+ }
+ f->pos += n;
+ }
+
+ return n;
+}
+
+/* We discard the styling information here. This function is only used
+ when objdump is printing auxiliary information, the symbol headers, and
+ disassembly address, or the bytes of the disassembled instruction. We
+ don't (currently) apply styling to any of this stuff, so, for now, just
+ print the content with no additional style added. */
+
+static int ATTRIBUTE_PRINTF_3
+fprintf_styled (FILE *f, enum disassembler_style style ATTRIBUTE_UNUSED,
+ const char *fmt, ...)
+{
+ int res;
+ va_list ap;
+
+ va_start (ap, fmt);
+ res = vfprintf (f, fmt, ap);
+ va_end (ap);
+
+ return res;
+}
+
/* Code for generating (colored) diagrams of control flow start and end
points. */
sfile.pos = 0;
inf->insn_info_valid = 0;
- inf->fprintf_func = (fprintf_ftype) objdump_sprintf;
- inf->stream = &sfile;
+ disassemble_set_printf (inf, &sfile, (fprintf_ftype) objdump_sprintf,
+ (fprintf_styled_ftype) objdump_styled_sprintf);
addr_offset = start_offset;
while (addr_offset < stop_offset)
/* Extract jump information. */
inf->insn_info_valid = 0;
+ disassembler_in_comment = false;
octets = (*disassemble_fn) (section->vma + addr_offset, inf);
/* Test if a jump was detected. */
if (inf->insn_info_valid
addr_offset += octets / opb;
}
- inf->fprintf_func = (fprintf_ftype) fprintf;
- inf->stream = stdout;
-
+ disassemble_set_printf (inf, (void *) stdout, (fprintf_ftype) fprintf,
+ (fprintf_styled_ftype) fprintf_styled);
free (sfile.buffer);
/* Merge jumps. */
return 1;
}
+/* Like null_print, but takes the extra STYLE argument. As this is not
+ going to print anything, the extra argument is just ignored. */
+
+static int
+null_styled_print (const void * stream ATTRIBUTE_UNUSED,
+ enum disassembler_style style ATTRIBUTE_UNUSED,
+ const char * format ATTRIBUTE_UNUSED, ...)
+{
+ return 1;
+}
+
/* Print out jump visualization. */
static void
int insn_size;
sfile.pos = 0;
- inf->fprintf_func = (fprintf_ftype) objdump_sprintf;
- inf->stream = &sfile;
+ disassemble_set_printf
+ (inf, &sfile, (fprintf_ftype) objdump_sprintf,
+ (fprintf_styled_ftype) objdump_styled_sprintf);
inf->bytes_per_line = 0;
inf->bytes_per_chunk = 0;
inf->flags = ((disassemble_all ? DISASSEMBLE_DATA : 0)
twice, but we only do this when there is a high
probability that there is a reloc that will
affect the instruction. */
- inf->fprintf_func = (fprintf_ftype) null_print;
+ disassemble_set_printf
+ (inf, inf->stream, (fprintf_ftype) null_print,
+ (fprintf_styled_ftype) null_styled_print);
insn_size = disassemble_fn (section->vma
+ addr_offset, inf);
- inf->fprintf_func = (fprintf_ftype) objdump_sprintf;
+ disassemble_set_printf
+ (inf, inf->stream,
+ (fprintf_ftype) objdump_sprintf,
+ (fprintf_styled_ftype) objdump_styled_sprintf);
}
}
inf->stop_vma = section->vma + stop_offset;
inf->stop_offset = stop_offset;
+ disassembler_in_comment = false;
insn_size = (*disassemble_fn) (section->vma + addr_offset, inf);
octets = insn_size;
inf->stop_vma = 0;
- inf->fprintf_func = (fprintf_ftype) fprintf;
- inf->stream = stdout;
+ disassemble_set_printf (inf, stdout, (fprintf_ftype) fprintf,
+ (fprintf_styled_ftype) fprintf_styled);
if (insn_width == 0 && inf->bytes_per_line != 0)
octets_per_line = inf->bytes_per_line;
if (insn_size < (int) opb)
sf.alloc = strlen (sym->name) + 40;
sf.buffer = (char*) xmalloc (sf.alloc);
sf.pos = 0;
- di.fprintf_func = (fprintf_ftype) objdump_sprintf;
- di.stream = &sf;
+ disassemble_set_printf
+ (&di, &sf, (fprintf_ftype) objdump_sprintf,
+ (fprintf_styled_ftype) objdump_styled_sprintf);
objdump_print_symname (abfd, &di, sym);
++sorted_symcount;
}
- init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf);
-
+ init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf,
+ (fprintf_styled_ftype) fprintf_styled);
disasm_info.application_data = (void *) &aux;
aux.abfd = abfd;
aux.require_sec = false;
}
bool
-reloc_at (struct dwarf_section * dsec, dwarf_vma offset)
+reloc_at (struct dwarf_section * dsec, uint64_t offset)
{
arelent ** relocs;
arelent * rp;
asection *sec;
const char *name;
+ if (!dump_any_debugging)
+ return false;
+
/* If it is already loaded, do nothing. */
if (section->start != NULL)
{
section->start = NULL;
section->address = 0;
section->size = 0;
+ free ((char*) section->reloc_info);
+ section->reloc_info = NULL;
+ section->num_relocs= 0;
}
void
return data;
}
-#if HAVE_LIBDEBUGINFOD
-/* Return a hex string represention of the build-id. */
-
-unsigned char *
-get_build_id (void * data)
-{
- unsigned i;
- char * build_id_str;
- bfd * abfd = (bfd *) data;
- const struct bfd_build_id * build_id;
-
- build_id = abfd->build_id;
- if (build_id == NULL)
- return NULL;
-
- build_id_str = malloc (build_id->size * 2 + 1);
- if (build_id_str == NULL)
- return NULL;
-
- for (i = 0; i < build_id->size; i++)
- sprintf (build_id_str + (i * 2), "%02x", build_id->data[i]);
- build_id_str[build_id->size * 2] = '\0';
-
- return (unsigned char *)build_id_str;
-}
-#endif /* HAVE_LIBDEBUGINFOD */
-
static void
dump_dwarf_section (bfd *abfd, asection *section,
- void *arg ATTRIBUTE_UNUSED)
+ void *arg)
{
const char *name = bfd_section_name (section);
const char *match;
int i;
+ bool is_mainfile = *(bool *) arg;
if (*name == 0)
return;
+ if (!is_mainfile && !process_links
+ && (section->flags & SEC_DEBUGGING) == 0)
+ return;
+
if (startswith (name, ".gnu.linkonce.wi."))
match = ".debug_info";
else
/* Dump the dwarf debugging information. */
static void
-dump_dwarf (bfd *abfd)
+dump_dwarf (bfd *abfd, bool is_mainfile)
{
/* The byte_get pointer should have been set at the start of dump_bfd(). */
if (byte_get == NULL)
init_dwarf_regnames_by_bfd_arch_and_mach (bfd_get_arch (abfd),
bfd_get_mach (abfd));
- bfd_map_over_sections (abfd, dump_dwarf_section, NULL);
+ bfd_map_over_sections (abfd, dump_dwarf_section, (void *) &is_mainfile);
}
\f
/* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
bfd_sprintf_vma (abfd, buf, (bfd_vma) -1);
width = strlen (buf) - 7;
}
- printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
+ printf ("OFFSET %*s TYPE %*s VALUE\n", width, "", 12, "");
}
last_filename = NULL;
return (((vma & ((mask << 1) - 1)) ^ mask) - mask);
}
+static bool
+might_need_separate_debug_info (bool is_mainfile)
+{
+ /* We do not follow links from debug info files. */
+ if (! is_mainfile)
+ return false;
+
+ /* Since do_follow_links might be enabled by default, only treat it as an
+ indication that separate files should be loaded if setting it was a
+ deliberate user action. */
+ if (DEFAULT_FOR_FOLLOW_LINKS == 0 && do_follow_links)
+ return true;
+
+ if (process_links || dump_symtab || dump_debugging
+ || dump_dwarf_section_info)
+ return true;
+
+ return false;
+}
+
/* Dump selected contents of ABFD. */
static void
else
byte_get = NULL;
- /* Load any separate debug information files.
- We do this now and without checking do_follow_links because separate
- debug info files may contain symbol tables that we will need when
- displaying information about the main file. Any memory allocated by
- load_separate_debug_files will be released when we call
- free_debug_memory below.
-
- The test on is_mainfile is there because the chain of separate debug
- info files is a global variable shared by all invocations of dump_bfd. */
- if (byte_get != NULL && is_mainfile)
+ /* Load any separate debug information files. */
+ if (byte_get != NULL && might_need_separate_debug_info (is_mainfile))
{
load_separate_debug_files (abfd, bfd_get_filename (abfd));
bfd_map_over_sections (abfd, adjust_addresses, &has_reloc);
}
- if (! is_mainfile && ! process_links)
- return;
-
- if (! dump_debugging_tags && ! suppress_bfd_header)
- printf (_("\n%s: file format %s\n"),
- sanitize_string (bfd_get_filename (abfd)),
- abfd->xvec->name);
- if (dump_ar_hdrs)
- print_arelt_descr (stdout, abfd, true, false);
- if (dump_file_header)
- dump_bfd_header (abfd);
- if (dump_private_headers)
- dump_bfd_private_header (abfd);
- if (dump_private_options != NULL)
- dump_target_specific (abfd);
- if (! dump_debugging_tags && ! suppress_bfd_header)
- putchar ('\n');
+ if (is_mainfile || process_links)
+ {
+ if (! dump_debugging_tags && ! suppress_bfd_header)
+ printf (_("\n%s: file format %s\n"),
+ sanitize_string (bfd_get_filename (abfd)),
+ abfd->xvec->name);
+ if (dump_ar_hdrs)
+ print_arelt_descr (stdout, abfd, true, false);
+ if (dump_file_header)
+ dump_bfd_header (abfd);
+ if (dump_private_headers)
+ dump_bfd_private_header (abfd);
+ if (dump_private_options != NULL)
+ dump_target_specific (abfd);
+ if (! dump_debugging_tags && ! suppress_bfd_header)
+ putchar ('\n');
+ }
if (dump_symtab
|| dump_reloc_info
}
}
- if (dump_section_headers)
- dump_headers (abfd);
+ if (is_mainfile || process_links)
+ {
+ if (dump_section_headers)
+ dump_headers (abfd);
- if (dump_dynamic_symtab || dump_dynamic_reloc_info
- || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
- dynsyms = slurp_dynamic_symtab (abfd);
+ if (dump_dynamic_symtab || dump_dynamic_reloc_info
+ || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
+ dynsyms = slurp_dynamic_symtab (abfd);
- if (disassemble)
- {
- synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
- dynsymcount, dynsyms, &synthsyms);
- if (synthcount < 0)
- synthcount = 0;
- }
+ if (disassemble)
+ {
+ synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
+ dynsymcount, dynsyms,
+ &synthsyms);
+ if (synthcount < 0)
+ synthcount = 0;
+ }
- if (dump_symtab)
- dump_symbols (abfd, false);
- if (dump_dynamic_symtab)
- dump_symbols (abfd, true);
+ if (dump_symtab)
+ dump_symbols (abfd, false);
+ if (dump_dynamic_symtab)
+ dump_symbols (abfd, true);
+ }
if (dump_dwarf_section_info)
- dump_dwarf (abfd);
- if (dump_ctf_section_info)
- dump_ctf (abfd, dump_ctf_section_name, dump_ctf_parent_name);
- if (dump_stab_section_info)
- dump_stabs (abfd);
- if (dump_reloc_info && ! disassemble)
- dump_relocs (abfd);
- if (dump_dynamic_reloc_info && ! disassemble)
- dump_dynamic_relocs (abfd);
- if (dump_section_contents)
- dump_data (abfd);
- if (disassemble)
- disassemble_data (abfd);
+ dump_dwarf (abfd, is_mainfile);
+ if (is_mainfile || process_links)
+ {
+ if (dump_ctf_section_info)
+ dump_ctf (abfd, dump_ctf_section_name, dump_ctf_parent_name);
+ if (dump_stab_section_info)
+ dump_stabs (abfd);
+ if (dump_reloc_info && ! disassemble)
+ dump_relocs (abfd);
+ if (dump_dynamic_reloc_info && ! disassemble)
+ dump_dynamic_relocs (abfd);
+ if (dump_section_contents)
+ dump_data (abfd);
+ if (disassemble)
+ disassemble_data (abfd);
+ }
if (dump_debugging)
{
else if (! dump_dwarf_section_info)
{
dwarf_select_sections_all ();
- dump_dwarf (abfd);
+ dump_dwarf (abfd, is_mainfile);
}
}
{
nonfatal (bfd_get_filename (abfd));
list_matching_formats (matching);
- free (matching);
return;
}
nonfatal (bfd_get_filename (abfd));
if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
- {
- list_matching_formats (matching);
- free (matching);
- }
+ list_matching_formats (matching);
}
static void
nonfatal (_("unrecognized argument to --visualize-option"));
}
break;
+ case OPTION_DISASSEMBLER_COLOR:
+ if (streq (optarg, "off"))
+ disassembler_color = off;
+ else if (streq (optarg, "color"))
+ disassembler_color = on;
+ else if (streq (optarg, "extended-color"))
+ disassembler_color = extended;
+ else
+ nonfatal (_("unrecognized argument to --disassembler-color"));
+ break;
case 'E':
if (strcmp (optarg, "B") == 0)
endian = BFD_ENDIAN_BIG;
do_follow_links = true;
break;
case 'W':
- dump_dwarf_section_info = true;
seenflag = true;
if (optarg)
- dwarf_select_sections_by_letters (optarg);
+ {
+ if (dwarf_select_sections_by_letters (optarg))
+ dump_dwarf_section_info = true;
+ }
else
- dwarf_select_sections_all ();
+ {
+ dump_dwarf_section_info = true;
+ dwarf_select_sections_all ();
+ }
break;
case OPTION_DWARF:
- dump_dwarf_section_info = true;
seenflag = true;
if (optarg)
- dwarf_select_sections_by_names (optarg);
+ {
+ if (dwarf_select_sections_by_names (optarg))
+ dump_dwarf_section_info = true;
+ }
else
- dwarf_select_sections_all ();
+ {
+ dwarf_select_sections_all ();
+ dump_dwarf_section_info = true;
+ }
break;
case OPTION_DWARF_DEPTH:
{
}
}
+ if (disassembler_color == on_if_terminal_output)
+ disassembler_color = isatty (1) ? on : off;
+
if (show_version)
print_version ("objdump");
if (!seenflag)
usage (stderr, 2);
+ dump_any_debugging = (dump_debugging
+ || dump_dwarf_section_info
+ || process_links);
+
if (formats_info)
exit_status = display_info ();
else
projects / binutils-gdb.git / blobdiff