Squashed 'third_party/elfutils/' content from commit 555e15e
Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/src/addr2line.c b/src/addr2line.c
new file mode 100644
index 0000000..444ee52
--- /dev/null
+++ b/src/addr2line.c
@@ -0,0 +1,814 @@
+/* Locate source files and line information for given addresses
+ Copyright (C) 2005-2010, 2012, 2013, 2015 Red Hat, Inc.
+ This file is part of elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2005.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ elfutils is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <argp.h>
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <libdwfl.h>
+#include <dwarf.h>
+#include <libintl.h>
+#include <locale.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <system.h>
+#include <printversion.h>
+
+
+/* Name and version of program. */
+ARGP_PROGRAM_VERSION_HOOK_DEF = print_version;
+
+/* Bug report address. */
+ARGP_PROGRAM_BUG_ADDRESS_DEF = PACKAGE_BUGREPORT;
+
+
+/* Values for the parameters which have no short form. */
+#define OPT_DEMANGLER 0x100
+#define OPT_PRETTY 0x101 /* 'p' is already used to select the process. */
+
+/* Definitions of arguments for argp functions. */
+static const struct argp_option options[] =
+{
+ { NULL, 0, NULL, 0, N_("Input format options:"), 2 },
+ { "section", 'j', "NAME", 0,
+ N_("Treat addresses as offsets relative to NAME section."), 0 },
+
+ { NULL, 0, NULL, 0, N_("Output format options:"), 3 },
+ { "addresses", 'a', NULL, 0, N_("Print address before each entry"), 0 },
+ { "basenames", 's', NULL, 0, N_("Show only base names of source files"), 0 },
+ { "absolute", 'A', NULL, 0,
+ N_("Show absolute file names using compilation directory"), 0 },
+ { "functions", 'f', NULL, 0, N_("Also show function names"), 0 },
+ { "symbols", 'S', NULL, 0, N_("Also show symbol or section names"), 0 },
+ { "symbols-sections", 'x', NULL, 0, N_("Also show symbol and the section names"), 0 },
+ { "flags", 'F', NULL, 0, N_("Also show line table flags"), 0 },
+ { "inlines", 'i', NULL, 0,
+ N_("Show all source locations that caused inline expansion of subroutines at the address."),
+ 0 },
+ { "demangle", 'C', "ARG", OPTION_ARG_OPTIONAL,
+ N_("Show demangled symbols (ARG is always ignored)"), 0 },
+ { "pretty-print", OPT_PRETTY, NULL, 0,
+ N_("Print all information on one line, and indent inlines"), 0 },
+
+ { NULL, 0, NULL, 0, N_("Miscellaneous:"), 0 },
+ /* Unsupported options. */
+ { "target", 'b', "ARG", OPTION_HIDDEN, NULL, 0 },
+ { "demangler", OPT_DEMANGLER, "ARG", OPTION_HIDDEN, NULL, 0 },
+ { NULL, 0, NULL, 0, NULL, 0 }
+};
+
+/* Short description of program. */
+static const char doc[] = N_("\
+Locate source files and line information for ADDRs (in a.out by default).");
+
+/* Strings for arguments in help texts. */
+static const char args_doc[] = N_("[ADDR...]");
+
+/* Prototype for option handler. */
+static error_t parse_opt (int key, char *arg, struct argp_state *state);
+
+static struct argp_child argp_children[2]; /* [0] is set in main. */
+
+/* Data structure to communicate with argp functions. */
+static const struct argp argp =
+{
+ options, parse_opt, args_doc, doc, argp_children, NULL, NULL
+};
+
+
+/* Handle ADDR. */
+static int handle_address (const char *addr, Dwfl *dwfl);
+
+/* True when we should print the address for each entry. */
+static bool print_addresses;
+
+/* True if only base names of files should be shown. */
+static bool only_basenames;
+
+/* True if absolute file names based on DW_AT_comp_dir should be shown. */
+static bool use_comp_dir;
+
+/* True if line flags should be shown. */
+static bool show_flags;
+
+/* True if function names should be shown. */
+static bool show_functions;
+
+/* True if ELF symbol or section info should be shown. */
+static bool show_symbols;
+
+/* True if section associated with a symbol address should be shown. */
+static bool show_symbol_sections;
+
+/* If non-null, take address parameters as relative to named section. */
+static const char *just_section;
+
+/* True if all inlined subroutines of the current address should be shown. */
+static bool show_inlines;
+
+/* True if all names need to be demangled. */
+static bool demangle;
+
+/* True if all information should be printed on one line. */
+static bool pretty;
+
+#ifdef USE_DEMANGLE
+static size_t demangle_buffer_len = 0;
+static char *demangle_buffer = NULL;
+#endif
+
+int
+main (int argc, char *argv[])
+{
+ int remaining;
+ int result = 0;
+
+ /* We use no threads here which can interfere with handling a stream. */
+ (void) __fsetlocking (stdout, FSETLOCKING_BYCALLER);
+
+ /* Set locale. */
+ (void) setlocale (LC_ALL, "");
+
+ /* Make sure the message catalog can be found. */
+ (void) bindtextdomain (PACKAGE_TARNAME, LOCALEDIR);
+
+ /* Initialize the message catalog. */
+ (void) textdomain (PACKAGE_TARNAME);
+
+ /* Parse and process arguments. This includes opening the modules. */
+ argp_children[0].argp = dwfl_standard_argp ();
+ argp_children[0].group = 1;
+ Dwfl *dwfl = NULL;
+ (void) argp_parse (&argp, argc, argv, 0, &remaining, &dwfl);
+ assert (dwfl != NULL);
+
+ /* Now handle the addresses. In case none are given on the command
+ line, read from stdin. */
+ if (remaining == argc)
+ {
+ /* We use no threads here which can interfere with handling a stream. */
+ (void) __fsetlocking (stdin, FSETLOCKING_BYCALLER);
+
+ char *buf = NULL;
+ size_t len = 0;
+ ssize_t chars;
+ while (!feof_unlocked (stdin))
+ {
+ if ((chars = getline (&buf, &len, stdin)) < 0)
+ break;
+
+ if (buf[chars - 1] == '\n')
+ buf[chars - 1] = '\0';
+
+ result = handle_address (buf, dwfl);
+ }
+
+ free (buf);
+ }
+ else
+ {
+ do
+ result = handle_address (argv[remaining], dwfl);
+ while (++remaining < argc);
+ }
+
+ dwfl_end (dwfl);
+
+#ifdef USE_DEMANGLE
+ free (demangle_buffer);
+#endif
+
+ return result;
+}
+
+
+/* Handle program arguments. */
+static error_t
+parse_opt (int key, char *arg, struct argp_state *state)
+{
+ switch (key)
+ {
+ case ARGP_KEY_INIT:
+ state->child_inputs[0] = state->input;
+ break;
+
+ case 'a':
+ print_addresses = true;
+ break;
+
+ case 'b':
+ case 'C':
+ case OPT_DEMANGLER:
+ demangle = true;
+ break;
+
+ case 's':
+ only_basenames = true;
+ break;
+
+ case 'A':
+ use_comp_dir = true;
+ break;
+
+ case 'f':
+ show_functions = true;
+ break;
+
+ case 'F':
+ show_flags = true;
+ break;
+
+ case 'S':
+ show_symbols = true;
+ break;
+
+ case 'x':
+ show_symbols = true;
+ show_symbol_sections = true;
+ break;
+
+ case 'j':
+ just_section = arg;
+ break;
+
+ case 'i':
+ show_inlines = true;
+ break;
+
+ case OPT_PRETTY:
+ pretty = true;
+ break;
+
+ default:
+ return ARGP_ERR_UNKNOWN;
+ }
+ return 0;
+}
+
+static const char *
+symname (const char *name)
+{
+#ifdef USE_DEMANGLE
+ // Require GNU v3 ABI by the "_Z" prefix.
+ if (demangle && name[0] == '_' && name[1] == 'Z')
+ {
+ int status = -1;
+ char *dsymname = __cxa_demangle (name, demangle_buffer,
+ &demangle_buffer_len, &status);
+ if (status == 0)
+ name = demangle_buffer = dsymname;
+ }
+#endif
+ return name;
+}
+
+static const char *
+get_diename (Dwarf_Die *die)
+{
+ Dwarf_Attribute attr;
+ const char *name;
+
+ name = dwarf_formstring (dwarf_attr_integrate (die, DW_AT_MIPS_linkage_name,
+ &attr)
+ ?: dwarf_attr_integrate (die, DW_AT_linkage_name,
+ &attr));
+
+ if (name == NULL)
+ name = dwarf_diename (die) ?: "??";
+
+ return name;
+}
+
+static bool
+print_dwarf_function (Dwfl_Module *mod, Dwarf_Addr addr)
+{
+ Dwarf_Addr bias = 0;
+ Dwarf_Die *cudie = dwfl_module_addrdie (mod, addr, &bias);
+
+ Dwarf_Die *scopes;
+ int nscopes = dwarf_getscopes (cudie, addr - bias, &scopes);
+ if (nscopes <= 0)
+ return false;
+
+ bool res = false;
+ for (int i = 0; i < nscopes; ++i)
+ switch (dwarf_tag (&scopes[i]))
+ {
+ case DW_TAG_subprogram:
+ {
+ const char *name = get_diename (&scopes[i]);
+ if (name == NULL)
+ goto done;
+ printf ("%s%c", symname (name), pretty ? ' ' : '\n');
+ res = true;
+ goto done;
+ }
+
+ case DW_TAG_inlined_subroutine:
+ {
+ const char *name = get_diename (&scopes[i]);
+ if (name == NULL)
+ goto done;
+
+ /* When using --pretty-print we only show inlines on their
+ own line. Just print the first subroutine name. */
+ if (pretty)
+ {
+ printf ("%s ", symname (name));
+ res = true;
+ goto done;
+ }
+ else
+ printf ("%s inlined", symname (name));
+
+ Dwarf_Files *files;
+ if (dwarf_getsrcfiles (cudie, &files, NULL) == 0)
+ {
+ Dwarf_Attribute attr_mem;
+ Dwarf_Word val;
+ if (dwarf_formudata (dwarf_attr (&scopes[i],
+ DW_AT_call_file,
+ &attr_mem), &val) == 0)
+ {
+ const char *file = dwarf_filesrc (files, val, NULL, NULL);
+ unsigned int lineno = 0;
+ unsigned int colno = 0;
+ if (dwarf_formudata (dwarf_attr (&scopes[i],
+ DW_AT_call_line,
+ &attr_mem), &val) == 0)
+ lineno = val;
+ if (dwarf_formudata (dwarf_attr (&scopes[i],
+ DW_AT_call_column,
+ &attr_mem), &val) == 0)
+ colno = val;
+
+ const char *comp_dir = "";
+ const char *comp_dir_sep = "";
+
+ if (file == NULL)
+ file = "???";
+ else if (only_basenames)
+ file = basename (file);
+ else if (use_comp_dir && file[0] != '/')
+ {
+ const char *const *dirs;
+ size_t ndirs;
+ if (dwarf_getsrcdirs (files, &dirs, &ndirs) == 0
+ && dirs[0] != NULL)
+ {
+ comp_dir = dirs[0];
+ comp_dir_sep = "/";
+ }
+ }
+
+ if (lineno == 0)
+ printf (" from %s%s%s",
+ comp_dir, comp_dir_sep, file);
+ else if (colno == 0)
+ printf (" at %s%s%s:%u",
+ comp_dir, comp_dir_sep, file, lineno);
+ else
+ printf (" at %s%s%s:%u:%u",
+ comp_dir, comp_dir_sep, file, lineno, colno);
+ }
+ }
+ printf (" in ");
+ continue;
+ }
+ }
+
+done:
+ free (scopes);
+ return res;
+}
+
+static void
+print_addrsym (Dwfl_Module *mod, GElf_Addr addr)
+{
+ GElf_Sym s;
+ GElf_Off off;
+ const char *name = dwfl_module_addrinfo (mod, addr, &off, &s,
+ NULL, NULL, NULL);
+ if (name == NULL)
+ {
+ /* No symbol name. Get a section name instead. */
+ int i = dwfl_module_relocate_address (mod, &addr);
+ if (i >= 0)
+ name = dwfl_module_relocation_info (mod, i, NULL);
+ if (name == NULL)
+ printf ("??%c", pretty ? ' ': '\n');
+ else
+ printf ("(%s)+%#" PRIx64 "%c", name, addr, pretty ? ' ' : '\n');
+ }
+ else
+ {
+ name = symname (name);
+ if (off == 0)
+ printf ("%s", name);
+ else
+ printf ("%s+%#" PRIx64 "", name, off);
+
+ // Also show section name for address.
+ if (show_symbol_sections)
+ {
+ Dwarf_Addr ebias;
+ Elf_Scn *scn = dwfl_module_address_section (mod, &addr, &ebias);
+ if (scn != NULL)
+ {
+ GElf_Shdr shdr_mem;
+ GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
+ if (shdr != NULL)
+ {
+ Elf *elf = dwfl_module_getelf (mod, &ebias);
+ GElf_Ehdr ehdr;
+ if (gelf_getehdr (elf, &ehdr) != NULL)
+ printf (" (%s)", elf_strptr (elf, ehdr.e_shstrndx,
+ shdr->sh_name));
+ }
+ }
+ }
+ printf ("%c", pretty ? ' ' : '\n');
+ }
+}
+
+static int
+see_one_module (Dwfl_Module *mod,
+ void **userdata __attribute__ ((unused)),
+ const char *name __attribute__ ((unused)),
+ Dwarf_Addr start __attribute__ ((unused)),
+ void *arg)
+{
+ Dwfl_Module **result = arg;
+ if (*result != NULL)
+ return DWARF_CB_ABORT;
+ *result = mod;
+ return DWARF_CB_OK;
+}
+
+static int
+find_symbol (Dwfl_Module *mod,
+ void **userdata __attribute__ ((unused)),
+ const char *name __attribute__ ((unused)),
+ Dwarf_Addr start __attribute__ ((unused)),
+ void *arg)
+{
+ const char *looking_for = ((void **) arg)[0];
+ GElf_Sym *symbol = ((void **) arg)[1];
+ GElf_Addr *value = ((void **) arg)[2];
+
+ int n = dwfl_module_getsymtab (mod);
+ for (int i = 1; i < n; ++i)
+ {
+ const char *symbol_name = dwfl_module_getsym_info (mod, i, symbol,
+ value, NULL, NULL,
+ NULL);
+ if (symbol_name == NULL || symbol_name[0] == '\0')
+ continue;
+ switch (GELF_ST_TYPE (symbol->st_info))
+ {
+ case STT_SECTION:
+ case STT_FILE:
+ case STT_TLS:
+ break;
+ default:
+ if (!strcmp (symbol_name, looking_for))
+ {
+ ((void **) arg)[0] = NULL;
+ return DWARF_CB_ABORT;
+ }
+ }
+ }
+
+ return DWARF_CB_OK;
+}
+
+static bool
+adjust_to_section (const char *name, uintmax_t *addr, Dwfl *dwfl)
+{
+ /* It was (section)+offset. This makes sense if there is
+ only one module to look in for a section. */
+ Dwfl_Module *mod = NULL;
+ if (dwfl_getmodules (dwfl, &see_one_module, &mod, 0) != 0
+ || mod == NULL)
+ error (EXIT_FAILURE, 0, gettext ("Section syntax requires"
+ " exactly one module"));
+
+ int nscn = dwfl_module_relocations (mod);
+ for (int i = 0; i < nscn; ++i)
+ {
+ GElf_Word shndx;
+ const char *scn = dwfl_module_relocation_info (mod, i, &shndx);
+ if (unlikely (scn == NULL))
+ break;
+ if (!strcmp (scn, name))
+ {
+ /* Found the section. */
+ GElf_Shdr shdr_mem;
+ GElf_Addr shdr_bias;
+ GElf_Shdr *shdr = gelf_getshdr
+ (elf_getscn (dwfl_module_getelf (mod, &shdr_bias), shndx),
+ &shdr_mem);
+ if (unlikely (shdr == NULL))
+ break;
+
+ if (*addr >= shdr->sh_size)
+ error (0, 0,
+ gettext ("offset %#" PRIxMAX " lies outside"
+ " section '%s'"),
+ *addr, scn);
+
+ *addr += shdr->sh_addr + shdr_bias;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static void
+print_src (const char *src, int lineno, int linecol, Dwarf_Die *cu)
+{
+ const char *comp_dir = "";
+ const char *comp_dir_sep = "";
+
+ if (only_basenames)
+ src = basename (src);
+ else if (use_comp_dir && src[0] != '/')
+ {
+ Dwarf_Attribute attr;
+ comp_dir = dwarf_formstring (dwarf_attr (cu, DW_AT_comp_dir, &attr));
+ if (comp_dir != NULL)
+ comp_dir_sep = "/";
+ }
+
+ if (linecol != 0)
+ printf ("%s%s%s:%d:%d",
+ comp_dir, comp_dir_sep, src, lineno, linecol);
+ else
+ printf ("%s%s%s:%d",
+ comp_dir, comp_dir_sep, src, lineno);
+}
+
+static int
+get_addr_width (Dwfl_Module *mod)
+{
+ // Try to find the address width if possible.
+ static int width = 0;
+ if (width == 0 && mod != NULL)
+ {
+ Dwarf_Addr bias;
+ Elf *elf = dwfl_module_getelf (mod, &bias);
+ if (elf != NULL)
+ {
+ GElf_Ehdr ehdr_mem;
+ GElf_Ehdr *ehdr = gelf_getehdr (elf, &ehdr_mem);
+ if (ehdr != NULL)
+ width = ehdr->e_ident[EI_CLASS] == ELFCLASS32 ? 8 : 16;
+ }
+ }
+ if (width == 0)
+ width = 16;
+
+ return width;
+}
+
+static int
+handle_address (const char *string, Dwfl *dwfl)
+{
+ char *endp;
+ uintmax_t addr = strtoumax (string, &endp, 16);
+ if (endp == string || *endp != '\0')
+ {
+ bool parsed = false;
+ int i, j;
+ char *name = NULL;
+ if (sscanf (string, "(%m[^)])%" PRIiMAX "%n", &name, &addr, &i) == 2
+ && string[i] == '\0')
+ parsed = adjust_to_section (name, &addr, dwfl);
+ switch (sscanf (string, "%m[^-+]%n%" PRIiMAX "%n", &name, &i, &addr, &j))
+ {
+ default:
+ break;
+ case 1:
+ addr = 0;
+ j = i;
+ FALLTHROUGH;
+ case 2:
+ if (string[j] != '\0')
+ break;
+
+ /* It was symbol[+offset]. */
+ GElf_Sym sym;
+ GElf_Addr value = 0;
+ void *arg[3] = { name, &sym, &value };
+ (void) dwfl_getmodules (dwfl, &find_symbol, arg, 0);
+ if (arg[0] != NULL)
+ error (0, 0, gettext ("cannot find symbol '%s'"), name);
+ else
+ {
+ if (sym.st_size != 0 && addr >= sym.st_size)
+ error (0, 0,
+ gettext ("offset %#" PRIxMAX " lies outside"
+ " contents of '%s'"),
+ addr, name);
+ addr += value;
+ parsed = true;
+ }
+ break;
+ }
+
+ free (name);
+ if (!parsed)
+ return 1;
+ }
+ else if (just_section != NULL
+ && !adjust_to_section (just_section, &addr, dwfl))
+ return 1;
+
+ Dwfl_Module *mod = dwfl_addrmodule (dwfl, addr);
+
+ if (print_addresses)
+ {
+ int width = get_addr_width (mod);
+ printf ("0x%.*" PRIx64 "%s", width, addr, pretty ? ": " : "\n");
+ }
+
+ if (show_functions)
+ {
+ /* First determine the function name. Use the DWARF information if
+ possible. */
+ if (! print_dwarf_function (mod, addr) && !show_symbols)
+ {
+ const char *name = dwfl_module_addrname (mod, addr);
+ name = name != NULL ? symname (name) : "??";
+ printf ("%s%c", name, pretty ? ' ' : '\n');
+ }
+ }
+
+ if (show_symbols)
+ print_addrsym (mod, addr);
+
+ if ((show_functions || show_symbols) && pretty)
+ printf ("at ");
+
+ Dwfl_Line *line = dwfl_module_getsrc (mod, addr);
+
+ const char *src;
+ int lineno, linecol;
+
+ if (line != NULL && (src = dwfl_lineinfo (line, &addr, &lineno, &linecol,
+ NULL, NULL)) != NULL)
+ {
+ print_src (src, lineno, linecol, dwfl_linecu (line));
+ if (show_flags)
+ {
+ Dwarf_Addr bias;
+ Dwarf_Line *info = dwfl_dwarf_line (line, &bias);
+ assert (info != NULL);
+
+ inline void show (int (*get) (Dwarf_Line *, bool *),
+ const char *note)
+ {
+ bool flag;
+ if ((*get) (info, &flag) == 0 && flag)
+ fputs (note, stdout);
+ }
+ inline void show_int (int (*get) (Dwarf_Line *, unsigned int *),
+ const char *name)
+ {
+ unsigned int val;
+ if ((*get) (info, &val) == 0 && val != 0)
+ printf (" (%s %u)", name, val);
+ }
+
+ show (&dwarf_linebeginstatement, " (is_stmt)");
+ show (&dwarf_lineblock, " (basic_block)");
+ show (&dwarf_lineprologueend, " (prologue_end)");
+ show (&dwarf_lineepiloguebegin, " (epilogue_begin)");
+ show_int (&dwarf_lineisa, "isa");
+ show_int (&dwarf_linediscriminator, "discriminator");
+ }
+ putchar ('\n');
+ }
+ else
+ puts ("??:0");
+
+ if (show_inlines)
+ {
+ Dwarf_Addr bias = 0;
+ Dwarf_Die *cudie = dwfl_module_addrdie (mod, addr, &bias);
+
+ Dwarf_Die *scopes = NULL;
+ int nscopes = dwarf_getscopes (cudie, addr - bias, &scopes);
+ if (nscopes < 0)
+ return 1;
+
+ if (nscopes > 0)
+ {
+ Dwarf_Die subroutine;
+ Dwarf_Off dieoff = dwarf_dieoffset (&scopes[0]);
+ dwarf_offdie (dwfl_module_getdwarf (mod, &bias),
+ dieoff, &subroutine);
+ free (scopes);
+ scopes = NULL;
+
+ nscopes = dwarf_getscopes_die (&subroutine, &scopes);
+ if (nscopes > 1)
+ {
+ Dwarf_Die cu;
+ Dwarf_Files *files;
+ if (dwarf_diecu (&scopes[0], &cu, NULL, NULL) != NULL
+ && dwarf_getsrcfiles (cudie, &files, NULL) == 0)
+ {
+ for (int i = 0; i < nscopes - 1; i++)
+ {
+ Dwarf_Word val;
+ Dwarf_Attribute attr;
+ Dwarf_Die *die = &scopes[i];
+ if (dwarf_tag (die) != DW_TAG_inlined_subroutine)
+ continue;
+
+ if (pretty)
+ printf (" (inlined by) ");
+
+ if (show_functions)
+ {
+ /* Search for the parent inline or function. It
+ might not be directly above this inline -- e.g.
+ there could be a lexical_block in between. */
+ for (int j = i + 1; j < nscopes; j++)
+ {
+ Dwarf_Die *parent = &scopes[j];
+ int tag = dwarf_tag (parent);
+ if (tag == DW_TAG_inlined_subroutine
+ || tag == DW_TAG_entry_point
+ || tag == DW_TAG_subprogram)
+ {
+ printf ("%s%s",
+ symname (get_diename (parent)),
+ pretty ? " at " : "\n");
+ break;
+ }
+ }
+ }
+
+ src = NULL;
+ lineno = 0;
+ linecol = 0;
+ if (dwarf_formudata (dwarf_attr (die, DW_AT_call_file,
+ &attr), &val) == 0)
+ src = dwarf_filesrc (files, val, NULL, NULL);
+
+ if (dwarf_formudata (dwarf_attr (die, DW_AT_call_line,
+ &attr), &val) == 0)
+ lineno = val;
+
+ if (dwarf_formudata (dwarf_attr (die, DW_AT_call_column,
+ &attr), &val) == 0)
+ linecol = val;
+
+ if (src != NULL)
+ {
+ print_src (src, lineno, linecol, &cu);
+ putchar ('\n');
+ }
+ else
+ puts ("??:0");
+ }
+ }
+ }
+ }
+ free (scopes);
+ }
+
+ return 0;
+}
+
+
+#include "debugpred.h"