bfd *core_bfd;
static int core_num_syms;
static asymbol **core_syms;
+static bfd *core_debug_bfd; /* Separated debuginfo file, if any. */
asection *core_text_sect;
void * core_text_space;
fclose (file);
}
+/* Attempt to open separated debuginfo files (e.g., created with "strip -g").
+ This function tries to follow GNU debug links to locate external debug info
+ and opens them to make symbol and line information available. */
+
+static void
+open_separated_debug_file (bfd *abfd)
+{
+ char *debug_filename = NULL;
+ bfd *debug_bfd;
+
+ /* Try to follow .gnu_debuglink first (standard separated debug file). */
+ debug_filename = bfd_follow_gnu_debuglink (abfd, NULL);
+
+ if (!debug_filename)
+ {
+ /* Try alternate debug info (.gnu_debugaltlink). */
+ debug_filename = bfd_follow_gnu_debugaltlink (abfd, NULL);
+ }
+
+ if (!debug_filename)
+ {
+ /* Try build-id based debug file location. */
+ debug_filename = bfd_follow_build_id_debuglink (abfd, NULL);
+ }
+
+ if (debug_filename)
+ {
+ debug_bfd = bfd_openr (debug_filename, 0);
+
+ if (debug_bfd)
+ {
+ if (bfd_check_format (debug_bfd, bfd_object))
+ {
+ /* Successfully opened the debug file.
+ Enable decompression on the debug file. */
+ if ((debug_bfd->flags & BFD_DECOMPRESS) == 0)
+ debug_bfd->flags |= BFD_DECOMPRESS;
+
+ /* Store the debug BFD for use during symbol reading.
+ We'll use this for bfd_canonicalize_symtab and other symbol ops. */
+ core_debug_bfd = debug_bfd;
+ }
+ else
+ {
+ /* Debug file format check failed. */
+ bfd_close (debug_bfd);
+ }
+ }
+
+ free (debug_filename);
+ }
+}
+
void
core_init (const char * aout_name)
{
done (1);
}
+ /* Attempt to open separated debuginfo files if available.
+ This handles binaries stripped with "strip -g" by locating and opening
+ the external debug information via .gnu_debuglink or build-id. */
+ open_separated_debug_file (core_bfd);
+
/* Get core's text section. */
core_text_sect = bfd_get_section_by_name (core_bfd, ".text");
if (!core_text_sect)
/* Read core's symbol table. */
/* This will probably give us more than we need, but that's ok. */
- core_sym_bytes = bfd_get_symtab_upper_bound (core_bfd);
+ /* Use debug BFD for symbol info if we found a separated debuginfo file. */
+ bfd *sym_bfd = core_debug_bfd ? core_debug_bfd : core_bfd;
+
+ core_sym_bytes = bfd_get_symtab_upper_bound (sym_bfd);
if (core_sym_bytes < 0)
{
fprintf (stderr, "%s: %s: %s\n", whoami, aout_name,
}
core_syms = (asymbol **) xmalloc (core_sym_bytes);
- core_num_syms = bfd_canonicalize_symtab (core_bfd, core_syms);
+ core_num_syms = bfd_canonicalize_symtab (sym_bfd, core_syms);
if (core_num_syms < 0)
{
done (1);
}
- synth_count = bfd_get_synthetic_symtab (core_bfd, core_num_syms, core_syms,
+ synth_count = bfd_get_synthetic_symtab (sym_bfd, core_num_syms, core_syms,
0, NULL, &synthsyms);
if (synth_count > 0)
{
{
const char *fname = 0, *func_name = 0;
int l = 0;
+ /* Use debug BFD for line info if we have a separated debuginfo file. */
+ bfd *info_bfd = core_debug_bfd ? core_debug_bfd : core_bfd;
- if (bfd_find_nearest_line (core_bfd, core_text_sect, core_syms,
+ if (bfd_find_nearest_line (info_bfd, core_text_sect, core_syms,
addr - core_text_sect->vma,
&fname, &func_name, (unsigned int *) &l)
&& fname && func_name && l)
check_SCRIPTS += tst-gmon-gprof-l.sh
check_DATA += tst-gmon-gprof-l.out
-# Run tst-gmon-gprof-l.sh after tst-gmon-gprof.sh to avoid the race
-# condition since they both generate gmon.out.
-tst-gmon-gprof-l.out: tst-gmon$(EXEEXT) $(GPROF) tst-gmon-gprof.out
+tst-gmon-gprof-l.out: tst-gmon$(EXEEXT) $(GPROF)
$(srcdir)/tst-gmon-gprof-l.sh $(GPROF) tst-gmon$(EXEEXT)
+# Create a separated-debuginfo version of the initial binary
+check_SCRIPTS += tst-gmon-gprof-l2.sh
+tst-gmon2$(EXEEXT) tst-gmon2.debug: tst-gmon$(EXEEXT)
+ cp -p tst-gmon$(EXEEXT) tst-gmon2$(EXEEXT)
+ objcopy --only-keep-debug tst-gmon2$(EXEEXT) tst-gmon2.debug
+ strip --strip-debug tst-gmon2$(EXEEXT)
+ objcopy --add-gnu-debuglink=tst-gmon2.debug tst-gmon2$(EXEEXT)
+
+tst-gmon-gprof-l2.out: tst-gmon2$(EXEEXT) tst-gmon2.debug $(GPROF)
+ $(srcdir)/tst-gmon-gprof-l2.sh $(GPROF) tst-gmon2$(EXEEXT)
+check_DATA += tst-gmon-gprof-l2.out
+MOSTLYCLEANFILES += tst-gmon2$(EXEEXT) tst-gmon2.debug
+
+# Run all tests in series, so they don't fight over the gmon.out file
+.NOTPARALLEL:
+
endif NATIVE
build_triplet = @build@
host_triplet = @host@
target_triplet = @target@
-@NATIVE_TRUE@am__append_1 = tst-gmon-gprof.sh tst-gmon-gprof-l.sh
-@NATIVE_TRUE@am__append_2 = tst-gmon-gprof.out tst-gmon-gprof-l.out
-@NATIVE_TRUE@am__append_3 = tst-gmon.$(OBJEXT) tst-gmon$(EXEEXT) gmon.out
+
+# Create a separated-debuginfo version of the initial binary
+@NATIVE_TRUE@am__append_1 = tst-gmon-gprof.sh tst-gmon-gprof-l.sh \
+@NATIVE_TRUE@ tst-gmon-gprof-l2.sh
+@NATIVE_TRUE@am__append_2 = tst-gmon-gprof.out tst-gmon-gprof-l.out \
+@NATIVE_TRUE@ tst-gmon-gprof-l2.out
+@NATIVE_TRUE@am__append_3 = tst-gmon.$(OBJEXT) tst-gmon$(EXEEXT) \
+@NATIVE_TRUE@ gmon.out tst-gmon2$(EXEEXT) tst-gmon2.debug
subdir = testsuite
ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
am__aclocal_m4_deps = $(top_srcdir)/../bfd/warning.m4 \
--log-file $$b.log --trs-file $$b.trs \
$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
"$$tst" $(AM_TESTS_FD_REDIRECT)
+tst-gmon-gprof-l2.sh.log: tst-gmon-gprof-l2.sh
+ @p='tst-gmon-gprof-l2.sh'; \
+ b='tst-gmon-gprof-l2.sh'; \
+ $(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+ --log-file $$b.log --trs-file $$b.trs \
+ $(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+ "$$tst" $(AM_TESTS_FD_REDIRECT)
.test.log:
@p='$<'; \
$(am__set_b); \
@NATIVE_TRUE@ $(LINK) tst-gmon.$(OBJEXT)
@NATIVE_TRUE@tst-gmon-gprof.out: tst-gmon$(EXEEXT) $(GPROF)
@NATIVE_TRUE@ $(srcdir)/tst-gmon-gprof.sh $(GPROF) tst-gmon$(EXEEXT)
-# Run tst-gmon-gprof-l.sh after tst-gmon-gprof.sh to avoid the race
-# condition since they both generate gmon.out.
-@NATIVE_TRUE@tst-gmon-gprof-l.out: tst-gmon$(EXEEXT) $(GPROF) tst-gmon-gprof.out
+@NATIVE_TRUE@tst-gmon-gprof-l.out: tst-gmon$(EXEEXT) $(GPROF)
@NATIVE_TRUE@ $(srcdir)/tst-gmon-gprof-l.sh $(GPROF) tst-gmon$(EXEEXT)
+@NATIVE_TRUE@tst-gmon2$(EXEEXT) tst-gmon2.debug: tst-gmon$(EXEEXT)
+@NATIVE_TRUE@ cp -p tst-gmon$(EXEEXT) tst-gmon2$(EXEEXT)
+@NATIVE_TRUE@ objcopy --only-keep-debug tst-gmon2$(EXEEXT) tst-gmon2.debug
+@NATIVE_TRUE@ strip --strip-debug tst-gmon2$(EXEEXT)
+@NATIVE_TRUE@ objcopy --add-gnu-debuglink=tst-gmon2.debug tst-gmon2$(EXEEXT)
+
+@NATIVE_TRUE@tst-gmon-gprof-l2.out: tst-gmon2$(EXEEXT) tst-gmon2.debug $(GPROF)
+@NATIVE_TRUE@ $(srcdir)/tst-gmon-gprof-l2.sh $(GPROF) tst-gmon2$(EXEEXT)
+
+# Run all tests in series, so they don't fight over the gmon.out file
+@NATIVE_TRUE@.NOTPARALLEL:
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
--- /dev/null
+#!/bin/sh
+# Check the output of gprof against a carfully crafted binary.
+# Copyright (C) 2017-2025 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library 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
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+GPROF="$1"
+if test -z "$GPROF"; then
+ # Exit 0 for automake test script run.
+ exit 0
+fi
+
+program="$2"
+# Generate gmon.out
+data=gmon.out
+rm -f $data
+./$program
+if test ! -s $data; then
+ echo "FAIL"
+ exit 1
+fi
+
+LC_ALL=C
+export LC_ALL
+set -e
+exec 2>&1
+
+actual=${program}.actual-l
+expected=${program}.expected-l
+expected_dot=${program}.expected_dot-l
+cleanup () {
+ rm -f "$actual"
+ rm -f "$expected"
+ rm -f "$expected_dot"
+}
+trap cleanup 0
+
+cat > "$expected" <<EOF
+25 f1 2000
+31 f2 1000
+40 f3 1
+EOF
+
+# Special version for powerpc with function descriptors.
+cat > "$expected_dot" <<EOF
+25 .f1 2000
+31 .f2 1000
+40 .f3 1
+EOF
+
+"$GPROF" -l -C "$program" "$data" \
+ | awk -F '[(): ]' '/executions/{print $2, $5, $8}' \
+ | sort > "$actual"
+
+if cmp -s "$actual" "$expected_dot" \
+ || diff -u --label expected "$expected" --label actual "$actual" ; then
+ echo "PASS"
+else
+ echo "FAIL"
+ exit 1
+fi
projects / thirdparty / binutils-gdb.git / commitdiff
