[base]
2007-10-16 Jan Kratochvil <jan.kratochvil@redhat.com>
Port to GDB-6.7.
2008-01-22 Jan Kratochvil <jan.kratochvil@redhat.com>
option "build-id-core-loads": Fix it to be an "on"/"off" type.
More intuitive build-id missing files messages.
Lookup also the main executable from the rpm database.
Suppress duplicite buil-id missing files warnings.
2008-01-26 Jan Kratochvil <jan.kratochvil@redhat.com>
Print the shared libraries names unconditionally.
2008-02-21 Jan Kratochvil <jan.kratochvil@redhat.com>
Rename `debug build-id' to `build-id-verbose'.
Provide its level 0 to disable the build-id messages.
New description of `build-id-verbose' in the documentation.
Resolve the RH Bug 432164.
2008-02-24 Jan Kratochvil <jan.kratochvil@redhat.com>
Port to GDB-6.8pre.
2008-03-09 Jan Kratochvil <jan.kratochvil@redhat.com>
Implement the `debuginfo-install' rpm/yum integration.
Resolve the RH Bug 435581.
2008-04-16 Robert Scheck <redhat-bugzilla@linuxnetz.de>
Fix -I for non-standard rpm includes in `$(includedir)/rpm'.
2008-04-19 Jan Kratochvil <jan.kratochvil@redhat.com>
Disable the warnings for the testsuite not expecting them.
2008-10-12 Jan Kratochvil <jan.kratochvil@redhat.com>
rpm compatibility patch by Panu Matilainen.
2008-08-21 Jan Kratochvil <jan.kratochvil@redhat.com>
Disable MI non-compliant message on the missing debuginfo printed on
reloaded exec file.
Fix found by Denys Vlasenko <dvlasenk@redhat.com>.
Fixes Red Hat Bug 459414.
--- ./gdb/Makefile.in 2008-08-21 00:29:46.000000000 +0200
+++ ./gdb/Makefile.in 2008-08-21 00:28:43.000000000 +0200
@@ -340,7 +340,7 @@ CONFIG_UNINSTALL = @CONFIG_UNINSTALL@
# your system doesn't have fcntl.h in /usr/include (which is where it
# should be according to Posix).
DEFS = @DEFS@
-GDB_CFLAGS = -I. -I$(srcdir) -I$(srcdir)/config -DLOCALEDIR="\"$(localedir)\"" $(DEFS)
+GDB_CFLAGS = -I. -I$(srcdir) -I$(srcdir)/config -I$(includedir)/rpm -DLOCALEDIR="\"$(localedir)\"" $(DEFS)
# MH_CFLAGS, if defined, has host-dependent CFLAGS from the config directory.
GLOBAL_CFLAGS = $(MH_CFLAGS)
@@ -392,7 +392,7 @@ INSTALLED_LIBS=-lbfd -lreadline -lopcode
CLIBS = $(SIM) $(READLINE) $(OPCODES) $(BFD) $(INTL) $(LIBIBERTY) $(LIBDECNUMBER) \
$(XM_CLIBS) $(TM_CLIBS) $(NAT_CLIBS) $(GDBTKLIBS) @LIBS@ \
$(LIBICONV) $(LIBEXPAT) \
- $(LIBIBERTY) $(WIN32LIBS)
+ $(LIBIBERTY) $(WIN32LIBS) -lrpm
CDEPS = $(XM_CDEPS) $(TM_CDEPS) $(NAT_CDEPS) $(SIM) $(BFD) $(READLINE_DEPS) \
$(OPCODES) $(INTL_DEPS) $(LIBIBERTY) $(CONFIG_DEPS)
@@ -2029,7 +2029,8 @@ corelow.o: corelow.c $(defs_h) $(arch_ut
$(inferior_h) $(symtab_h) $(command_h) $(bfd_h) $(target_h) \
$(gdbcore_h) $(gdbthread_h) $(regcache_h) $(regset_h) $(symfile_h) \
$(exec_h) $(readline_h) $(gdb_assert_h) \
- $(exceptions_h) $(solib_h) $(filenames_h)
+ $(exceptions_h) $(solib_h) $(filenames_h) $(auxv_h) $(elf_common_h) \
+ $(objfiles_h) $(gdbcmd_h)
core-regset.o: core-regset.c $(defs_h) $(command_h) $(gdbcore_h) \
$(inferior_h) $(target_h) $(regcache_h) $(gdb_string_h) $(gregset_h)
cp-abi.o: cp-abi.c $(defs_h) $(value_h) $(cp_abi_h) $(command_h) $(gdbcmd_h) \
@@ -2117,7 +2118,7 @@ event-loop.o: event-loop.c $(defs_h) $(e
event-top.o: event-top.c $(defs_h) $(top_h) $(inferior_h) $(target_h) \
$(terminal_h) $(event_loop_h) $(event_top_h) $(interps_h) \
$(exceptions_h) $(cli_script_h) $(gdbcmd_h) $(readline_h) \
- $(readline_history_h)
+ $(readline_history_h) $(symfile_h)
exceptions.o: exceptions.c $(defs_h) $(exceptions_h) $(breakpoint_h) \
$(target_h) $(inferior_h) $(annotate_h) $(ui_out_h) $(gdb_assert_h) \
$(gdb_string_h) $(serial_h)
@@ -2884,7 +2885,8 @@ symfile.o: symfile.c $(defs_h) $(bfdlink
$(gdb_stabs_h) $(gdb_obstack_h) $(completer_h) $(bcache_h) \
$(hashtab_h) $(readline_h) $(gdb_assert_h) $(block_h) \
$(gdb_string_h) $(gdb_stat_h) $(observer_h) $(exec_h) \
- $(parser_defs_h) $(varobj_h) $(elf_bfd_h) $(solib_h)
+ $(parser_defs_h) $(varobj_h) $(elf_bfd_h) $(solib_h) $(gdb_stdint_h) \
+ $(libbfd_h) $(elf_bfd_h) $(elf_external_h)
symfile-mem.o: symfile-mem.c $(defs_h) $(symtab_h) $(gdbcore_h) \
$(objfiles_h) $(exceptions_h) $(gdbcmd_h) $(target_h) $(value_h) \
$(symfile_h) $(observer_h) $(auxv_h) $(elf_common_h)
@@ -3325,7 +3327,7 @@ tui-hooks.o: $(srcdir)/tui/tui-hooks.c $
tui-interp.o: $(srcdir)/tui/tui-interp.c $(defs_h) $(interps_h) $(top_h) \
$(event_top_h) $(event_loop_h) $(ui_out_h) $(cli_out_h) \
$(tui_data_h) $(readline_h) $(tui_win_h) $(tui_h) $(tui_io_h) \
- $(exceptions_h)
+ $(exceptions_h) $(symfile_h)
$(CC) -c $(INTERNAL_CFLAGS) $(srcdir)/tui/tui-interp.c
tui-io.o: $(srcdir)/tui/tui-io.c $(defs_h) $(target_h) \
$(event_loop_h) $(event_top_h) $(command_h) $(top_h) $(tui_h) \
--- ./gdb/corelow.c 2008-02-09 14:45:33.000000000 +0100
+++ ./gdb/corelow.c 2008-08-21 00:28:43.000000000 +0200
@@ -45,6 +45,10 @@
#include "exceptions.h"
#include "solib.h"
#include "filenames.h"
+#include "auxv.h"
+#include "elf/common.h"
+#include "objfiles.h"
+#include "gdbcmd.h"
#ifndef O_LARGEFILE
@@ -248,6 +252,56 @@ add_to_thread_list (bfd *abfd, asection
inferior_ptid = pid_to_ptid (thread_id); /* Yes, make it current */
}
+static int build_id_core_loads = 1;
+
+static void
+build_id_locate_exec (int from_tty)
+{
+ CORE_ADDR at_entry;
+ struct build_id *build_id;
+ char *exec_filename, *debug_filename;
+ char *build_id_filename;
+
+ if (exec_bfd != NULL)
+ return;
+
+ if (target_auxv_search (¤t_target, AT_ENTRY, &at_entry) <= 0)
+ return;
+
+ build_id = build_id_addr_get (at_entry);
+ if (build_id == NULL)
+ return;
+
+ exec_filename = build_id_to_filename (build_id, &build_id_filename, 0);
+ if (exec_filename != NULL)
+ exec_file_attach (exec_filename, from_tty);
+ else
+ debug_print_missing (_("the main executable file"), build_id_filename);
+ xfree (build_id_filename);
+
+ /* `.note.gnu.build-id' section exists even for files without a separate
+ debuginfo. */
+ debug_filename = build_id_to_filename (build_id, &build_id_filename, 1);
+ if (debug_filename != NULL)
+ {
+ symbol_file_add_main (debug_filename, from_tty);
+ xfree (debug_filename);
+ }
+ else
+ {
+ if (exec_filename != NULL)
+ symbol_file_add_main (exec_filename, from_tty);
+ /* For EXEC_FILENAME NULL we were already complaining above. */
+ if (symfile_objfile == NULL && exec_filename != NULL)
+ debug_print_missing (exec_filename, build_id_filename);
+ }
+ xfree (build_id_filename);
+
+ xfree (exec_filename);
+
+ /* No automatic SOLIB_ADD as the libraries would get read twice. */
+}
+
/* This routine opens and sets up the core file bfd. */
static void
@@ -344,6 +398,15 @@ core_open (char *filename, int from_tty)
ontop = !push_target (&core_ops);
discard_cleanups (old_chain);
+ if (ontop)
+ {
+ /* Find the build_id identifiers. If it gets executed after
+ POST_CREATE_INFERIOR we would clash with asking to discard the already
+ loaded VDSO symbols. */
+ if (build_id_core_loads != 0)
+ build_id_locate_exec (from_tty);
+ }
+
/* This is done first, before anything has a chance to query the
inferior for information such as symbols. */
post_create_inferior (&core_ops, from_tty);
@@ -692,4 +755,11 @@ _initialize_corelow (void)
if (!coreops_suppress_target)
add_target (&core_ops);
+
+ add_setshow_boolean_cmd ("build-id-core-loads", class_files,
+ &build_id_core_loads, _("\
+Set whether CORE-FILE loads the build-id associated files automatically."), _("\
+Show whether CORE-FILE loads the build-id associated files automatically.."),
+ NULL, NULL, NULL,
+ &setlist, &showlist);
}
--- ./gdb/doc/gdb.texinfo 2008-08-21 00:29:46.000000000 +0200
+++ ./gdb/doc/gdb.texinfo 2008-08-21 00:28:43.000000000 +0200
@@ -12195,6 +12195,27 @@ information files.
@end table
+You can also adjust the current verbosity of the @dfn{build id} locating.
+
+@table @code
+
+@kindex set build-id-verbose
+@item set build-id-verbose 0
+No additional messages are printed.
+
+@item set build-id-verbose 1
+Missing separate debug filenames are printed.
+
+@item set build-id-verbose 2
+Missing separate debug filenames are printed and also all the parsing of the
+binaries to find their @dfn{build id} content is printed.
+
+@kindex show build-id-verbose
+@item show build-id-verbose
+Show the current verbosity value for the @dfn{build id} content locating.
+
+@end table
+
@cindex @code{.gnu_debuglink} sections
@cindex debug link sections
A debug link is a special section of the executable file named
--- ./gdb/event-top.c 2008-01-01 23:53:09.000000000 +0100
+++ ./gdb/event-top.c 2008-08-21 00:28:43.000000000 +0200
@@ -31,6 +31,7 @@
#include <signal.h>
#include "exceptions.h"
#include "cli/cli-script.h" /* for reset_command_nest_depth */
+#include "symfile.h"
/* For dont_repeat() */
#include "gdbcmd.h"
@@ -192,6 +193,8 @@ cli_command_loop (void)
char *a_prompt;
char *gdb_prompt = get_prompt ();
+ debug_flush_missing ();
+
/* Tell readline what the prompt to display is and what function it
will need to call after a whole line is read. This also displays
the first prompt. */
@@ -263,6 +266,8 @@ display_gdb_prompt (char *new_prompt)
/* Reset the nesting depth used when trace-commands is set. */
reset_command_nest_depth ();
+ debug_flush_missing ();
+
/* Each interpreter has its own rules on displaying the command
prompt. */
if (!current_interp_display_prompt_p ())
--- ./gdb/solib-svr4.c 2008-08-21 00:29:46.000000000 +0200
+++ ./gdb/solib-svr4.c 2008-08-21 00:28:43.000000000 +0200
@@ -764,9 +764,33 @@ svr4_current_sos (void)
safe_strerror (errcode));
else
{
- strncpy (new->so_name, buffer, SO_NAME_MAX_PATH_SIZE - 1);
- new->so_name[SO_NAME_MAX_PATH_SIZE - 1] = '\0';
- strcpy (new->so_original_name, new->so_name);
+ struct build_id *build_id;
+
+ strncpy (new->so_original_name, buffer, SO_NAME_MAX_PATH_SIZE - 1);
+ new->so_original_name[SO_NAME_MAX_PATH_SIZE - 1] = '\0';
+ /* May get overwritten below. */
+ strcpy (new->so_name, new->so_original_name);
+
+ build_id = build_id_addr_get (LM_DYNAMIC_FROM_LINK_MAP (new));
+ if (build_id != NULL)
+ {
+ char *name, *build_id_filename;
+
+ /* Missing the build-id matching separate debug info file
+ would be handled while SO_NAME gets loaded. */
+ name = build_id_to_filename (build_id, &build_id_filename, 0);
+ if (name != NULL)
+ {
+ strncpy (new->so_name, name, SO_NAME_MAX_PATH_SIZE - 1);
+ new->so_name[SO_NAME_MAX_PATH_SIZE - 1] = '\0';
+ xfree (name);
+ }
+ else
+ debug_print_missing (new->so_name, build_id_filename);
+
+ xfree (build_id_filename);
+ xfree (build_id);
+ }
}
xfree (buffer);
--- ./gdb/symfile.c 2008-08-21 00:29:46.000000000 +0200
+++ ./gdb/symfile.c 2008-08-21 00:29:18.000000000 +0200
@@ -53,6 +53,9 @@
#include "varobj.h"
#include "elf-bfd.h"
#include "solib.h"
+#include "gdb_stdint.h"
+#include "libbfd.h"
+#include "elf/external.h"
#include <sys/types.h>
#include <fcntl.h>
@@ -61,6 +64,7 @@
#include <ctype.h>
#include <time.h>
#include <sys/time.h>
+#include <sys/param.h>
int (*deprecated_ui_load_progress_hook) (const char *section, unsigned long num);
@@ -1226,16 +1230,65 @@ symbol_file_clear (int from_tty)
printf_unfiltered (_("No symbol file now.\n"));
}
+/* Locate NT_GNU_BUILD_ID and return its matching debug filename.
+ FIXME: NOTE decoding should be unified with the BFD core notes decoding. */
+
+#define BUILD_ID_VERBOSE_NONE 0
+#define BUILD_ID_VERBOSE_FILENAMES 1
+#define BUILD_ID_VERBOSE_BINARY_PARSE 2
+static int build_id_verbose = BUILD_ID_VERBOSE_FILENAMES;
+static void
+show_build_id_verbose (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("Verbosity level of the build-id locator is %s.\n"),
+ value);
+}
+
struct build_id
{
size_t size;
gdb_byte data[1];
};
-/* Locate NT_GNU_BUILD_ID from ABFD and return its content. */
+struct build_id *
+build_id_buf_get (bfd *templ, gdb_byte *buf, bfd_size_type size)
+{
+ bfd_byte *p;
+
+ p = buf;
+ while (p < buf + size)
+ {
+ /* FIXME: bad alignment assumption. */
+ Elf_External_Note *xnp = (Elf_External_Note *) p;
+ size_t namesz = H_GET_32 (templ, xnp->namesz);
+ size_t descsz = H_GET_32 (templ, xnp->descsz);
+ bfd_byte *descdata = xnp->name + BFD_ALIGN (namesz, 4);
+
+ if (H_GET_32 (templ, xnp->type) == NT_GNU_BUILD_ID
+ && namesz == sizeof "GNU"
+ && memcmp (xnp->name, "GNU", sizeof "GNU") == 0)
+ {
+ size_t size = descsz;
+ gdb_byte *data = (void *) descdata;
+ struct build_id *retval;
+
+ retval = xmalloc (sizeof *retval - 1 + size);
+ retval->size = size;
+ memcpy (retval->data, data, size);
+
+ return retval;
+ }
+ p = descdata + BFD_ALIGN (descsz, 4);
+ }
+ return NULL;
+}
+
+/* Separate debuginfo files have corrupted PHDR but SHDR is correct there.
+ Locate NT_GNU_BUILD_ID from ABFD and return its content. */
static struct build_id *
-build_id_bfd_get (bfd *abfd)
+build_id_bfd_shdr_get (bfd *abfd)
{
struct build_id *retval;
@@ -1251,6 +1304,348 @@ build_id_bfd_get (bfd *abfd)
return retval;
}
+/* Core files may have missing (corrupt) SHDR but PDHR is correct there.
+ bfd_elf_bfd_from_remote_memory () has too much overhead by
+ allocating/reading all the available ELF PT_LOADs. */
+
+static struct build_id *
+build_id_phdr_get (bfd *templ, bfd_vma loadbase, unsigned e_phnum,
+ Elf_Internal_Phdr *i_phdr)
+{
+ int i;
+ struct build_id *retval = NULL;
+
+ for (i = 0; i < e_phnum; i++)
+ if (i_phdr[i].p_type == PT_NOTE && i_phdr[i].p_filesz > 0)
+ {
+ Elf_Internal_Phdr *hdr = &i_phdr[i];
+ gdb_byte *buf;
+ int err;
+
+ buf = xmalloc (hdr->p_filesz);
+ err = target_read_memory (loadbase + i_phdr[i].p_vaddr, buf,
+ hdr->p_filesz);
+ if (err == 0)
+ retval = build_id_buf_get (templ, buf, hdr->p_filesz);
+ else
+ retval = NULL;
+ xfree (buf);
+ if (retval != NULL)
+ break;
+ }
+ return retval;
+}
+
+/* First we validate the file by reading in the ELF header and checking
+ the magic number. */
+
+static inline bfd_boolean
+elf_file_p (Elf64_External_Ehdr *x_ehdrp64)
+{
+ gdb_assert (sizeof (Elf64_External_Ehdr) >= sizeof (Elf32_External_Ehdr));
+ gdb_assert (offsetof (Elf64_External_Ehdr, e_ident)
+ == offsetof (Elf32_External_Ehdr, e_ident));
+ gdb_assert (sizeof (((Elf64_External_Ehdr *) 0)->e_ident)
+ == sizeof (((Elf32_External_Ehdr *) 0)->e_ident));
+
+ return ((x_ehdrp64->e_ident[EI_MAG0] == ELFMAG0)
+ && (x_ehdrp64->e_ident[EI_MAG1] == ELFMAG1)
+ && (x_ehdrp64->e_ident[EI_MAG2] == ELFMAG2)
+ && (x_ehdrp64->e_ident[EI_MAG3] == ELFMAG3));
+}
+
+/* Translate an ELF file header in external format into an ELF file header in
+ internal format. */
+
+#define H_GET_WORD(bfd, ptr) (is64 ? H_GET_64 (bfd, (ptr)) \
+ : H_GET_32 (bfd, (ptr)))
+#define H_GET_SIGNED_WORD(bfd, ptr) (is64 ? H_GET_S64 (bfd, (ptr)) \
+ : H_GET_S32 (bfd, (ptr)))
+
+static void
+elf_swap_ehdr_in (bfd *abfd,
+ const Elf64_External_Ehdr *src64,
+ Elf_Internal_Ehdr *dst)
+{
+ int is64 = bfd_get_arch_size (abfd) == 64;
+#define SRC(field) (is64 ? src64->field \
+ : ((const Elf32_External_Ehdr *) src64)->field)
+
+ int signed_vma = get_elf_backend_data (abfd)->sign_extend_vma;
+ memcpy (dst->e_ident, SRC (e_ident), EI_NIDENT);
+ dst->e_type = H_GET_16 (abfd, SRC (e_type));
+ dst->e_machine = H_GET_16 (abfd, SRC (e_machine));
+ dst->e_version = H_GET_32 (abfd, SRC (e_version));
+ if (signed_vma)
+ dst->e_entry = H_GET_SIGNED_WORD (abfd, SRC (e_entry));
+ else
+ dst->e_entry = H_GET_WORD (abfd, SRC (e_entry));
+ dst->e_phoff = H_GET_WORD (abfd, SRC (e_phoff));
+ dst->e_shoff = H_GET_WORD (abfd, SRC (e_shoff));
+ dst->e_flags = H_GET_32 (abfd, SRC (e_flags));
+ dst->e_ehsize = H_GET_16 (abfd, SRC (e_ehsize));
+ dst->e_phentsize = H_GET_16 (abfd, SRC (e_phentsize));
+ dst->e_phnum = H_GET_16 (abfd, SRC (e_phnum));
+ dst->e_shentsize = H_GET_16 (abfd, SRC (e_shentsize));
+ dst->e_shnum = H_GET_16 (abfd, SRC (e_shnum));
+ dst->e_shstrndx = H_GET_16 (abfd, SRC (e_shstrndx));
+
+#undef SRC
+}
+
+/* Translate an ELF program header table entry in external format into an
+ ELF program header table entry in internal format. */
+
+void
+elf_swap_phdr_in (bfd *abfd,
+ const Elf64_External_Phdr *src64,
+ Elf_Internal_Phdr *dst)
+{
+ int is64 = bfd_get_arch_size (abfd) == 64;
+#define SRC(field) (is64 ? src64->field \
+ : ((const Elf32_External_Phdr *) src64)->field)
+
+ int signed_vma = get_elf_backend_data (abfd)->sign_extend_vma;
+
+ dst->p_type = H_GET_32 (abfd, SRC (p_type));
+ dst->p_flags = H_GET_32 (abfd, SRC (p_flags));
+ dst->p_offset = H_GET_WORD (abfd, SRC (p_offset));
+ if (signed_vma)
+ {
+ dst->p_vaddr = H_GET_SIGNED_WORD (abfd, SRC (p_vaddr));
+ dst->p_paddr = H_GET_SIGNED_WORD (abfd, SRC (p_paddr));
+ }
+ else
+ {
+ dst->p_vaddr = H_GET_WORD (abfd, SRC (p_vaddr));
+ dst->p_paddr = H_GET_WORD (abfd, SRC (p_paddr));
+ }
+ dst->p_filesz = H_GET_WORD (abfd, SRC (p_filesz));
+ dst->p_memsz = H_GET_WORD (abfd, SRC (p_memsz));
+ dst->p_align = H_GET_WORD (abfd, SRC (p_align));
+
+#undef SRC
+}
+
+#undef H_GET_SIGNED_WORD
+#undef H_GET_WORD
+
+static Elf_Internal_Phdr *
+elf_get_phdr (bfd *templ, bfd_vma ehdr_vma, unsigned *e_phnum_pointer,
+ bfd_vma *loadbase_pointer)
+{
+ /* sizeof (Elf64_External_Ehdr) >= sizeof (Elf32_External_Ehdr) */
+ Elf64_External_Ehdr x_ehdr64; /* Elf file header, external form */
+ Elf_Internal_Ehdr i_ehdr; /* Elf file header, internal form */
+ bfd_size_type x_phdrs_size;
+ gdb_byte *x_phdrs_ptr;
+ Elf_Internal_Phdr *i_phdrs;
+ int err;
+ unsigned int i;
+ bfd_vma loadbase;
+ int loadbase_set;
+
+ gdb_assert (templ != NULL);
+ gdb_assert (sizeof (Elf64_External_Ehdr) >= sizeof (Elf32_External_Ehdr));
+
+ /* Read in the ELF header in external format. */
+ err = target_read_memory (ehdr_vma, (bfd_byte *) &x_ehdr64, sizeof x_ehdr64);
+ if (err)
+ {
+ if (build_id_verbose >= BUILD_ID_VERBOSE_BINARY_PARSE)
+ warning (_("build-id: Error reading ELF header at address 0x%lx"),
+ (unsigned long) ehdr_vma);
+ return NULL;
+ }
+
+ /* Now check to see if we have a valid ELF file, and one that BFD can
+ make use of. The magic number must match, the address size ('class')
+ and byte-swapping must match our XVEC entry. */
+
+ if (! elf_file_p (&x_ehdr64)
+ || x_ehdr64.e_ident[EI_VERSION] != EV_CURRENT
+ || !((bfd_get_arch_size (templ) == 64
+ && x_ehdr64.e_ident[EI_CLASS] == ELFCLASS64)
+ || (bfd_get_arch_size (templ) == 32
+ && x_ehdr64.e_ident[EI_CLASS] == ELFCLASS32)))
+ {
+ if (build_id_verbose >= BUILD_ID_VERBOSE_BINARY_PARSE)
+ warning (_("build-id: Unrecognized ELF header at address 0x%lx"),
+ (unsigned long) ehdr_vma);
+ return NULL;
+ }
+
+ /* Check that file's byte order matches xvec's */
+ switch (x_ehdr64.e_ident[EI_DATA])
+ {
+ case ELFDATA2MSB: /* Big-endian */
+ if (! bfd_header_big_endian (templ))
+ {
+ if (build_id_verbose >= BUILD_ID_VERBOSE_BINARY_PARSE)
+ warning (_("build-id: Unrecognized "
+ "big-endian ELF header at address 0x%lx"),
+ (unsigned long) ehdr_vma);
+ return NULL;
+ }
+ break;
+ case ELFDATA2LSB: /* Little-endian */
+ if (! bfd_header_little_endian (templ))
+ {
+ if (build_id_verbose >= BUILD_ID_VERBOSE_BINARY_PARSE)
+ warning (_("build-id: Unrecognized "
+ "little-endian ELF header at address 0x%lx"),
+ (unsigned long) ehdr_vma);
+ return NULL;
+ }
+ break;
+ case ELFDATANONE: /* No data encoding specified */
+ default: /* Unknown data encoding specified */
+ if (build_id_verbose >= BUILD_ID_VERBOSE_BINARY_PARSE)
+ warning (_("build-id: Unrecognized "
+ "ELF header endianity at address 0x%lx"),
+ (unsigned long) ehdr_vma);
+ return NULL;
+ }
+
+ elf_swap_ehdr_in (templ, &x_ehdr64, &i_ehdr);
+
+ /* The file header tells where to find the program headers.
+ These are what we use to actually choose what to read. */
+
+ if (i_ehdr.e_phentsize != (bfd_get_arch_size (templ) == 64
+ ? sizeof (Elf64_External_Phdr)
+ : sizeof (Elf32_External_Phdr))
+ || i_ehdr.e_phnum == 0)
+ {
+ if (build_id_verbose >= BUILD_ID_VERBOSE_BINARY_PARSE)
+ warning (_("build-id: Invalid ELF program headers from the ELF header "
+ "at address 0x%lx"), (unsigned long) ehdr_vma);
+ return NULL;
+ }
+
+ x_phdrs_size = (bfd_get_arch_size (templ) == 64 ? sizeof (Elf64_External_Phdr)
+ : sizeof (Elf32_External_Phdr));
+
+ i_phdrs = xmalloc (i_ehdr.e_phnum * (sizeof *i_phdrs + x_phdrs_size));
+ x_phdrs_ptr = (void *) &i_phdrs[i_ehdr.e_phnum];
+ err = target_read_memory (ehdr_vma + i_ehdr.e_phoff, (bfd_byte *) x_phdrs_ptr,
+ i_ehdr.e_phnum * x_phdrs_size);
+ if (err)
+ {
+ free (i_phdrs);
+ if (build_id_verbose >= BUILD_ID_VERBOSE_BINARY_PARSE)
+ warning (_("build-id: Error reading "
+ "ELF program headers at address 0x%lx"),
+ (unsigned long) (ehdr_vma + i_ehdr.e_phoff));
+ return NULL;
+ }
+
+ loadbase = ehdr_vma;
+ loadbase_set = 0;
+ for (i = 0; i < i_ehdr.e_phnum; ++i)
+ {
+ elf_swap_phdr_in (templ, (Elf64_External_Phdr *)
+ (x_phdrs_ptr + i * x_phdrs_size), &i_phdrs[i]);
+ /* IA-64 vDSO may have two mappings for one segment, where one mapping
+ is executable only, and one is read only. We must not use the
+ executable one (PF_R is the first one, PF_X the second one). */
+ if (i_phdrs[i].p_type == PT_LOAD && (i_phdrs[i].p_flags & PF_R))
+ {
+ /* Only the first PT_LOAD segment indicates the file bias.
+ Next segments may have P_VADDR arbitrarily higher.
+ If the first segment has P_VADDR zero any next segment must not
+ confuse us, the first one sets LOADBASE certainly enough. */
+ if (!loadbase_set && i_phdrs[i].p_offset == 0)
+ {
+ loadbase = ehdr_vma - i_phdrs[i].p_vaddr;
+ loadbase_set = 1;
+ }
+ }
+ }
+
+ if (build_id_verbose >= BUILD_ID_VERBOSE_BINARY_PARSE)
+ warning (_("build-id: Found ELF header at address 0x%lx, loadbase 0x%lx"),
+ (unsigned long) ehdr_vma, (unsigned long) loadbase);
+
+ *e_phnum_pointer = i_ehdr.e_phnum;
+ *loadbase_pointer = loadbase;
+ return i_phdrs;
+}
+
+/* BUILD_ID_ADDR_GET gets ADDR located somewhere in the object.
+ Find the first section before ADDR containing an ELF header.
+ We rely on the fact the sections from multiple files do not mix.
+ FIXME: We should check ADDR is contained _inside_ the section with possibly
+ missing content (P_FILESZ < P_MEMSZ). These omitted sections are currently
+ hidden by _BFD_ELF_MAKE_SECTION_FROM_PHDR. */
+
+static CORE_ADDR build_id_addr;
+struct build_id_addr_sect
+ {
+ struct build_id_addr_sect *next;
+ asection *sect;
+ };
+static struct build_id_addr_sect *build_id_addr_sect;
+
+static void build_id_addr_candidate (bfd *abfd, asection *sect, void *obj)
+{
+ if (build_id_addr >= bfd_section_vma (abfd, sect))
+ {
+ struct build_id_addr_sect *candidate;
+
+ candidate = xmalloc (sizeof *candidate);
+ candidate->next = build_id_addr_sect;
+ build_id_addr_sect = candidate;
+ candidate->sect = sect;
+ }
+}
+
+struct build_id *
+build_id_addr_get (CORE_ADDR addr)
+{
+ struct build_id_addr_sect *candidate;
+ struct build_id *retval = NULL;
+ Elf_Internal_Phdr *i_phdr = NULL;
+ bfd_vma loadbase = 0;
+ unsigned e_phnum = 0;
+
+ if (core_bfd == NULL)
+ return NULL;
+
+ build_id_addr = addr;
+ gdb_assert (build_id_addr_sect == NULL);
+ bfd_map_over_sections (core_bfd, build_id_addr_candidate, NULL);
+
+ /* Sections are sorted in the high-to-low VMAs order.
+ Stop the search on the first ELF header we find.
+ Do not continue the search even if it does not contain NT_GNU_BUILD_ID. */
+
+ for (candidate = build_id_addr_sect; candidate != NULL;
+ candidate = candidate->next)
+ {
+ i_phdr = elf_get_phdr (core_bfd,
+ bfd_section_vma (core_bfd, candidate->sect),
+ &e_phnum, &loadbase);
+ if (i_phdr != NULL)
+ break;
+ }
+
+ if (i_phdr != NULL)
+ {
+ retval = build_id_phdr_get (core_bfd, loadbase, e_phnum, i_phdr);
+ xfree (i_phdr);
+ }
+
+ while (build_id_addr_sect != NULL)
+ {
+ candidate = build_id_addr_sect;
+ build_id_addr_sect = candidate->next;
+ xfree (candidate);
+ }
+
+ return retval;
+}
+
/* Return if FILENAME has NT_GNU_BUILD_ID matching the CHECK value. */
static int
@@ -1265,7 +1660,7 @@ build_id_verify (const char *filename, s
if (abfd == NULL)
return 0;
- found = build_id_bfd_get (abfd);
+ found = build_id_bfd_shdr_get (abfd);
if (found == NULL)
warning (_("File \"%s\" has no build-id, file skipped"), filename);
@@ -1281,8 +1676,9 @@ build_id_verify (const char *filename, s
return retval;
}
-static char *
-build_id_to_debug_filename (struct build_id *build_id)
+char *
+build_id_to_filename (struct build_id *build_id, char **link_return,
+ int add_debug_suffix)
{
char *link, *s, *retval = NULL;
gdb_byte *data = build_id->data;
@@ -1290,7 +1686,9 @@ build_id_to_debug_filename (struct build
/* DEBUG_FILE_DIRECTORY/.build-id/ab/cdef */
link = xmalloc (strlen (debug_file_directory) + (sizeof "/.build-id/" - 1) + 1
- + 2 * size + (sizeof ".debug" - 1) + 1);
+ + 2 * size
+ + (add_debug_suffix ? sizeof ".debug" - 1 : 0)
+ + 1);
s = link + sprintf (link, "%s/.build-id/", debug_file_directory);
if (size > 0)
{
@@ -1301,12 +1699,14 @@ build_id_to_debug_filename (struct build
*s++ = '/';
while (size-- > 0)
s += sprintf (s, "%02x", (unsigned) *data++);
- strcpy (s, ".debug");
+ if (add_debug_suffix)
+ strcpy (s, ".debug");
+ else
+ *s = 0;
/* lrealpath() is expensive even for the usually non-existent files. */
if (access (link, F_OK) == 0)
retval = lrealpath (link);
- xfree (link);
if (retval != NULL && !build_id_verify (retval, build_id))
{
@@ -1314,9 +1714,437 @@ build_id_to_debug_filename (struct build
retval = NULL;
}
+ if (link_return != NULL)
+ *link_return = link;
+ else
+ xfree (link);
+
return retval;
}
+#include <rpm/rpmlib.h>
+#include <rpm/rpmts.h>
+#include <rpm/rpmdb.h>
+#include <rpm/header.h>
+
+/* This MISSING_RPM_HASH tracker is used to collect all the missing rpm files
+ and avoid their duplicities during a single inferior run. */
+
+static struct htab *missing_rpm_hash;
+
+/* This MISSING_RPM_LIST tracker is used to collect and print as a single line
+ all the rpms right before the nearest GDB prompt. It gets cleared after
+ each such print (it is questionable if we should clear it after the print).
+ */
+
+struct missing_rpm
+ {
+ struct missing_rpm *next;
+ char rpm[1];
+ };
+static struct missing_rpm *missing_rpm_list;
+static int missing_rpm_list_entries;
+
+/* Returns the count of newly added rpms. */
+
+static int
+missing_rpm_enlist (const char *filename)
+{
+ static int rpm_init_done = 0;
+ rpmts ts;
+ rpmdbMatchIterator mi;
+ int count = 0;
+
+ if (filename == NULL)
+ return 0;
+
+ if (!rpm_init_done)
+ {
+ if (rpmReadConfigFiles(NULL, NULL) != 0)
+ {
+ warning (_("Error reading the rpm configuration files"));
+ return 0;
+ }
+ rpm_init_done = 1;
+ }
+
+ ts = rpmtsCreate ();
+
+ mi = rpmtsInitIterator (ts, RPMTAG_BASENAMES, filename, 0);
+ if (mi != NULL)
+ {
+ for (;;)
+ {
+ Header h;
+ char *s, *srcrpm, *verrel, *debuginfo;
+ union
+ {
+ void *voidp;
+ char *s;
+ }
+ sourcerpm, arch;
+ char **slot;
+ rpmdbMatchIterator mi_debuginfo;
+
+ h = rpmdbNextIterator (mi);
+ if (h == NULL)
+ break;
+
+ if (!headerGetEntry (h, RPMTAG_SOURCERPM, NULL, &sourcerpm.voidp,
+ NULL))
+ {
+ warning (_("Error querying the rpm file `%s' %s"), filename,
+ "RPMTAG_SOURCERPM");
+ continue;
+ }
+ srcrpm = sourcerpm.s + strlen (sourcerpm.s) - (sizeof ".src.rpm" - 1);
+ if (srcrpm < sourcerpm.s || strcmp (srcrpm, ".src.rpm") != 0)
+ {
+error_parsing_sourcerpm:
+ warning (_("Error parsing %%{sourcerpm} of the rpm file `%s': %s"),
+ filename, sourcerpm.s);
+ continue;
+ }
+ s = srcrpm;
+
+ /* Skip the release. */
+
+ while (s > sourcerpm.s && s[-1] != '-')
+ s--;
+ if (s == sourcerpm.s)
+ goto error_parsing_sourcerpm;
+ s--;
+
+ /* Skip the version. */
+
+ while (s > sourcerpm.s && s[-1] != '-')
+ s--;
+ if (s == sourcerpm.s)
+ goto error_parsing_sourcerpm;
+ s--;
+ verrel = s;
+
+ if (!headerGetEntry (h, RPMTAG_ARCH, NULL, &arch.voidp, NULL))
+ {
+ warning (_("Error querying the rpm file `%s' %s"), filename,
+ "RPMTAG_ARCH");
+ continue;
+ }
+
+ /* The allocated memory gets utilized below for MISSING_RPM_HASH. */
+
+ debuginfo = xmalloc (strlen (sourcerpm.s) + strlen (arch.s) + 32);
+
+ /* Verify the debuginfo file is not already installed. */
+
+ sprintf (debuginfo, "%.*s-debuginfo%.*s.%s",
+ (int) (verrel - sourcerpm.s), sourcerpm.s,
+ (int) (srcrpm - verrel), verrel, arch.s);
+ mi_debuginfo = rpmtsInitIterator (ts, RPMDBI_LABEL, debuginfo, 0);
+ if (mi_debuginfo != NULL)
+ {
+ Header h_debuginfo;
+
+ h_debuginfo = rpmdbNextIterator (mi_debuginfo);
+ rpmdbFreeIterator (mi_debuginfo);
+ if (h_debuginfo != NULL)
+ {
+ xfree (debuginfo);
+
+ /* We ignore any != 0 for possibly already enlisted rpms as
+ it should not hurt much. */
+
+ count = 0;
+ break;
+ }
+ }
+
+ /* Base package name for `debuginfo-install'. We do not use `yum'
+ as its command
+ yum --enablerepo='*-debuginfo' install BASE-debuginfo.ARCH
+ would be more complicated than just:
+ debuginfo-install BASE.ARCH
+ We do not need to supply the version-release as
+ `debuginfo-install' always installs only the debuginfo matching
+ the currently installed rpm. Still we must supply `.%{arch}' as
+ we may have multilib (multiple arch-differing rpm packages)
+ installed.
+ FUTURE: After multiple debuginfo versions simultaneously installed
+ get supported we may need to supply the version-release here. */
+
+ sprintf (debuginfo, "%.*s.%s", (int) (verrel - sourcerpm.s),
+ sourcerpm.s, arch.s);
+
+ if (missing_rpm_hash == NULL)
+ {
+ /* DEL_F is passed NULL as MISSING_RPM_LIST's HTAB_DELETE
+ should not deallocate the entries. */
+
+ missing_rpm_hash = htab_create_alloc (64, htab_hash_string,
+ (int (*) (const void *, const void *)) streq,
+ NULL, xcalloc, xfree);
+ }
+ slot = (char **) htab_find_slot (missing_rpm_hash, debuginfo, INSERT);
+ /* XCALLOC never returns NULL. */
+ gdb_assert (slot != NULL);
+ if (*slot == NULL)
+ {
+ struct missing_rpm *missing_rpm;
+
+ *slot = debuginfo;
+
+ missing_rpm = xmalloc (sizeof (*missing_rpm) + strlen (debuginfo));
+ strcpy (missing_rpm->rpm, debuginfo);
+ missing_rpm->next = missing_rpm_list;
+ missing_rpm_list = missing_rpm;
+ missing_rpm_list_entries++;
+ }
+ else
+ xfree (debuginfo);
+ count++;
+ }
+
+ rpmdbFreeIterator (mi);
+ }
+
+ rpmtsFree (ts);
+
+ return count;
+}
+
+static int
+missing_rpm_list_compar (const char *const *ap, const char *const *bp)
+{
+ return strcoll (*ap, *bp);
+}
+
+/* It returns a NULL-terminated array of strings needing to be FREEd. It may
+ also return only NULL. */
+
+static void
+missing_rpm_list_print (void)
+{
+ char **array, **array_iter;
+ struct missing_rpm *list_iter;
+ struct cleanup *cleanups;
+
+ if (missing_rpm_list_entries == 0)
+ return;
+
+ array = xmalloc (sizeof (*array) * missing_rpm_list_entries);
+ cleanups = make_cleanup (xfree, array);
+
+ array_iter = array;
+ for (list_iter = missing_rpm_list; list_iter != NULL;
+ list_iter = list_iter->next)
+ {
+ *array_iter++ = list_iter->rpm;
+ }
+ gdb_assert (array_iter == array + missing_rpm_list_entries);
+
+ qsort (array, missing_rpm_list_entries, sizeof (*array),
+ (int (*) (const void *, const void *)) missing_rpm_list_compar);
+
+ printf_unfiltered (_("Missing separate debuginfos, use: %s"),
+ "debuginfo-install");
+ for (array_iter = array; array_iter < array + missing_rpm_list_entries;
+ array_iter++)
+ {
+ putchar_unfiltered (' ');
+ puts_unfiltered (*array_iter);
+ }
+ putchar_unfiltered ('\n');
+
+ while (missing_rpm_list != NULL)
+ {
+ list_iter = missing_rpm_list;
+ missing_rpm_list = list_iter->next;
+ xfree (list_iter);
+ }
+ missing_rpm_list_entries = 0;
+
+ do_cleanups (cleanups);
+}
+
+static void
+missing_rpm_change (void)
+{
+ debug_flush_missing ();
+
+ gdb_assert (missing_rpm_list == NULL);
+ if (missing_rpm_hash != NULL)
+ {
+ htab_delete (missing_rpm_hash);
+ missing_rpm_hash = NULL;
+ }
+}
+
+enum missing_exec
+ {
+ /* Init state. EXEC_BFD also still could be NULL. */
+ MISSING_EXEC_NOT_TRIED,
+ /* We saw a non-NULL EXEC_BFD but RPM has no info about it. */
+ MISSING_EXEC_NOT_FOUND,
+ /* We found EXEC_BFD by RPM and we either have its symbols (either embedded
+ or separate) or the main executable's RPM is now contained in
+ MISSING_RPM_HASH. */
+ MISSING_EXEC_ENLISTED
+ };
+static enum missing_exec missing_exec = MISSING_EXEC_NOT_TRIED;
+
+void
+debug_flush_missing (void)
+{
+ missing_rpm_list_print ();
+}
+
+/* This MISSING_FILEPAIR_HASH tracker is used only for the duplicite messages
+ yum --enablerepo='*-debuginfo' install ...
+ avoidance. */
+
+struct missing_filepair
+ {
+ char *binary;
+ char *debug;
+ char data[1];
+ };
+
+static struct htab *missing_filepair_hash;
+static struct obstack missing_filepair_obstack;
+
+static void *
+missing_filepair_xcalloc (size_t nmemb, size_t nmemb_size)
+{
+ void *retval;
+ size_t size = nmemb * nmemb_size;
+
+ retval = obstack_alloc (&missing_filepair_obstack, size);
+ memset (retval, 0, size);
+ return retval;
+}
+
+static hashval_t
+missing_filepair_hash_func (const struct missing_filepair *elem)
+{
+ hashval_t retval = 0;
+
+ retval ^= htab_hash_string (elem->binary);
+ if (elem->debug != NULL)
+ retval ^= htab_hash_string (elem->debug);
+
+ return retval;
+}
+
+static int
+missing_filepair_eq (const struct missing_filepair *elem1,
+ const struct missing_filepair *elem2)
+{
+ return strcmp (elem1->binary, elem2->binary) == 0
+ && ((elem1->debug == NULL && elem2->debug == NULL)
+ || strcmp (elem1->debug, elem2->debug) == 0);
+}
+
+static void
+missing_filepair_change (void)
+{
+ if (missing_filepair_hash != NULL)
+ {
+ obstack_free (&missing_filepair_obstack, NULL);
+ /* All their memory came just from missing_filepair_OBSTACK. */
+ missing_filepair_hash = NULL;
+ }
+ missing_exec = MISSING_EXEC_NOT_TRIED;
+}
+
+static void
+debug_print_executable_changed (void *unused)
+{
+ missing_rpm_change ();
+ missing_filepair_change ();
+}
+
+/* Notify user the file BINARY with (possibly NULL) associated separate debug
+ information file DEBUG is missing. DEBUG may or may not be the build-id
+ file such as would be:
+ /usr/lib/debug/.build-id/dd/b1d2ce632721c47bb9e8679f369e2295ce71be.debug
+ */
+
+void
+debug_print_missing (const char *binary, const char *debug)
+{
+ size_t binary_len0 = strlen (binary) + 1;
+ size_t debug_len0 = debug ? strlen (debug) + 1 : 0;
+ struct missing_filepair *missing_filepair;
+ struct missing_filepair **slot;
+
+ if (build_id_verbose < BUILD_ID_VERBOSE_FILENAMES)
+ return;
+
+ if (missing_filepair_hash == NULL)
+ {
+ obstack_init (&missing_filepair_obstack);
+ missing_filepair_hash = htab_create_alloc (64,
+ (hashval_t (*) (const void *)) missing_filepair_hash_func,
+ (int (*) (const void *, const void *)) missing_filepair_eq, NULL,
+ missing_filepair_xcalloc, NULL);
+ }
+
+ missing_filepair = obstack_alloc (&missing_filepair_obstack,
+ sizeof (*missing_filepair) - 1
+ + binary_len0 + debug_len0);
+ missing_filepair->binary = missing_filepair->data;
+ memcpy (missing_filepair->binary, binary, binary_len0);
+ if (debug != NULL)
+ {
+ missing_filepair->debug = missing_filepair->binary + binary_len0;
+ memcpy (missing_filepair->debug, debug, debug_len0);
+ }
+ else
+ missing_filepair->debug = NULL;
+
+ slot = (struct missing_filepair **) htab_find_slot (missing_filepair_hash,
+ missing_filepair,
+ INSERT);
+
+ /* While it may be still printed duplicitely with the missing debuginfo file
+ * it is due to once printing about the binary file build-id link and once
+ * about the .debug file build-id link as both the build-id symlinks are
+ * located in the debuginfo package. */
+
+ if (*slot != NULL)
+ {
+ obstack_free (&missing_filepair_obstack, missing_filepair);
+ return;
+ }
+ *slot = missing_filepair;
+
+ if (missing_exec == MISSING_EXEC_NOT_TRIED)
+ {
+ char *exec_filename;
+
+ exec_filename = get_exec_file (0);
+ if (exec_filename != NULL)
+ {
+ if (missing_rpm_enlist (exec_filename) == 0)
+ missing_exec = MISSING_EXEC_NOT_FOUND;
+ else
+ missing_exec = MISSING_EXEC_ENLISTED;
+ }
+ }
+ if (missing_exec != MISSING_EXEC_ENLISTED)
+ if (missing_rpm_enlist (binary) == 0 && missing_rpm_enlist (debug) == 0)
+ {
+ /* We do not collect and flush these messages as each such message
+ already requires its own separate lines. */
+
+ fprintf_unfiltered (gdb_stdlog,
+ _("Missing separate debuginfo for %s\n"), binary);
+ if (debug != NULL)
+ fprintf_unfiltered (gdb_stdlog, _("Try: %s %s\n"),
+ "yum --enablerepo='*-debuginfo' install", debug);
+ }
+}
+
static char *
get_debug_link_info (struct objfile *objfile, unsigned long *crc32_out)
{
@@ -1402,32 +2231,36 @@ static char *
find_separate_debug_file (struct objfile *objfile)
{
asection *sect;
- char *basename;
- char *dir;
- char *debugfile;
+ char *basename = NULL;
+ char *dir = NULL;
+ char *debugfile = NULL;
char *name_copy;
- char *canon_name;
+ char *canon_name = NULL;
bfd_size_type debuglink_size;
unsigned long crc32;
int i;
struct build_id *build_id;
+ char *build_id_filename = NULL;
- build_id = build_id_bfd_get (objfile->obfd);
+ build_id = build_id_bfd_shdr_get (objfile->obfd);
if (build_id != NULL)
{
char *build_id_name;
- build_id_name = build_id_to_debug_filename (build_id);
- free (build_id);
+ build_id_name = build_id_to_filename (build_id, &build_id_filename, 1);
+ xfree (build_id);
/* Prevent looping on a stripped .debug file. */
if (build_id_name != NULL && strcmp (build_id_name, objfile->name) == 0)
{
- warning (_("\"%s\": separate debug info file has no debug info"),
+ warning (_("\"%s\": The separate debug info file has no debug info"),
build_id_name);
xfree (build_id_name);
}
else if (build_id_name != NULL)
- return build_id_name;
+ {
+ xfree (build_id_filename);
+ return build_id_name;
+ }
}
basename = get_debug_link_info (objfile, &crc32);
@@ -1435,7 +2268,7 @@ find_separate_debug_file (struct objfile
if (basename == NULL)
/* There's no separate debug info, hence there's no way we could
load it => no warning. */
- return NULL;
+ goto cleanup_return_debugfile;
dir = xstrdup (objfile->name);
@@ -1451,23 +2284,19 @@ find_separate_debug_file (struct objfile
gdb_assert (i >= 0 && IS_DIR_SEPARATOR (dir[i]));
dir[i+1] = '\0';
- debugfile = alloca (strlen (debug_file_directory) + 1
- + strlen (dir)
- + strlen (DEBUG_SUBDIRECTORY)
- + strlen ("/")
- + strlen (basename)
- + 1);
+ debugfile = xmalloc (strlen (debug_file_directory) + 1
+ + strlen (dir)
+ + strlen (DEBUG_SUBDIRECTORY)
+ + strlen ("/")
+ + strlen (basename)
+ + 1);
/* First try in the same directory as the original file. */
strcpy (debugfile, dir);
strcat (debugfile, basename);
if (separate_debug_file_exists (debugfile, crc32, objfile->name))
- {
- xfree (basename);
- xfree (dir);
- return xstrdup (debugfile);
- }
+ goto cleanup_return_debugfile;
/* Then try in the subdirectory named DEBUG_SUBDIRECTORY. */
strcpy (debugfile, dir);
@@ -1476,11 +2305,7 @@ find_separate_debug_file (struct objfile
strcat (debugfile, basename);
if (separate_debug_file_exists (debugfile, crc32, objfile->name))
- {
- xfree (basename);
- xfree (dir);
- return xstrdup (debugfile);
- }
+ goto cleanup_return_debugfile;
/* Then try in the global debugfile directory. */
strcpy (debugfile, debug_file_directory);
@@ -1489,11 +2314,7 @@ find_separate_debug_file (struct objfile
strcat (debugfile, basename);
if (separate_debug_file_exists (debugfile, crc32, objfile->name))
- {
- xfree (basename);
- xfree (dir);
- return xstrdup (debugfile);
- }
+ goto cleanup_return_debugfile;
/* If the file is in the sysroot, try using its base path in the
global debugfile directory. */
@@ -1508,20 +2329,18 @@ find_separate_debug_file (struct objfile
strcat (debugfile, basename);
if (separate_debug_file_exists (debugfile, crc32, objfile->name))
- {
- xfree (canon_name);
- xfree (basename);
- xfree (dir);
- return xstrdup (debugfile);
- }
+ goto cleanup_return_debugfile;
}
-
- if (canon_name)
- xfree (canon_name);
+ debugfile = NULL;
+ debug_print_missing (objfile->name, build_id_filename);
+
+cleanup_return_debugfile:
+ xfree (build_id_filename);
+ xfree (canon_name);
xfree (basename);
xfree (dir);
- return NULL;
+ return debugfile;
}
@@ -4208,4 +5027,16 @@ the global debug-file directory prepende
NULL,
show_debug_file_directory,
&setlist, &showlist);
+
+ add_setshow_zinteger_cmd ("build-id-verbose", no_class, &build_id_verbose,
+ _("\
+Set debugging level of the build-id locator."), _("\
+Show debugging level of the build-id locator."), _("\
+Level 1 (default) enables printing the missing debug filenames,\n\
+level 2 also prints the parsing of binaries to find the identificators."),
+ NULL,
+ show_build_id_verbose,
+ &setlist, &showlist);
+
+ observer_attach_executable_changed (debug_print_executable_changed);
}
--- ./gdb/symfile.h 2008-02-03 23:13:29.000000000 +0100
+++ ./gdb/symfile.h 2008-08-21 00:28:43.000000000 +0200
@@ -358,6 +358,14 @@ extern int symfile_map_offsets_to_segmen
struct symfile_segment_data *get_symfile_segment_data (bfd *abfd);
void free_symfile_segment_data (struct symfile_segment_data *data);
+/* build-id support. */
+struct build_id;
+extern struct build_id *build_id_addr_get (CORE_ADDR addr);
+extern char *build_id_to_filename (struct build_id *build_id,
+ char **link_return, int add_debug_suffix);
+extern void debug_print_missing (const char *binary, const char *debug);
+extern void debug_flush_missing (void);
+
/* From dwarf2read.c */
extern int dwarf2_has_info (struct objfile *);
--- ./gdb/testsuite/lib/gdb.exp 2008-08-21 00:29:46.000000000 +0200
+++ ./gdb/testsuite/lib/gdb.exp 2008-08-21 00:28:43.000000000 +0200
@@ -1199,6 +1199,16 @@ proc default_gdb_start { } {
warning "Couldn't set the width to 0."
}
}
+ # Turn off the missing RPMs warnings as the testsuite does not expect it.
+ send_gdb "set build-id-verbose 0\n"
+ gdb_expect 10 {
+ -re "$gdb_prompt $" {
+ verbose "Disabled the missing debug infos warnings." 2
+ }
+ timeout {
+ warning "Could not disable the missing debug infos warnings.."
+ }
+ }
return 0;
}
--- ./gdb/tui/tui-interp.c 2008-01-01 23:53:22.000000000 +0100
+++ ./gdb/tui/tui-interp.c 2008-08-21 00:28:43.000000000 +0200
@@ -30,6 +30,7 @@
#include "tui/tui.h"
#include "tui/tui-io.h"
#include "exceptions.h"
+#include "symfile.h"
/* Set to 1 when the TUI mode must be activated when we first start
gdb. */
@@ -128,6 +129,8 @@ tui_command_loop (void *data)
char *a_prompt;
char *gdb_prompt = get_prompt ();
+ debug_flush_missing ();
+
/* Tell readline what the prompt to display is and what function
it will need to call after a whole line is read. This also
displays the first prompt. */