136 lines
4.6 KiB
Diff
136 lines
4.6 KiB
Diff
Comments by Sergio Durigan Junior <sergiodj@redhat.com>:
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This is the fix for RH BZ #981154
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It is mainly a testcase addition, but a minor fix in the gdb/build-id.c
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file was also needed.
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gdb/build-id.c was added by:
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commit dc294be54c96414035eed7d53dafdea0a6f31a72
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Author: Tom Tromey <tromey@redhat.com>
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Date: Tue Oct 8 19:56:15 2013 +0000
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and had a little thinko there. The variable 'filename' needs to be set to
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NULL after it is free'd, otherwise the code below thinks that it is still
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valid and doesn't print the necessary warning ("Try: yum install ...").
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Index: gdb-7.9.90.20150709/gdb/testsuite/gdb.base/rhbz981154-misleading-yum-install-warning.exp
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===================================================================
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--- /dev/null 1970-01-01 00:00:00.000000000 +0000
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+++ gdb-7.9.90.20150709/gdb/testsuite/gdb.base/rhbz981154-misleading-yum-install-warning.exp 2015-07-09 22:22:26.278304653 +0200
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@@ -0,0 +1,97 @@
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+# Copyright (C) 2014 Free Software Foundation, Inc.
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+
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 3 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program. If not, see <http://www.gnu.org/licenses/>.
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+
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+standard_testfile "normal.c"
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+
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+if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
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+ return -1
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+}
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+
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+# Get the build-id of the file
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+set build_id_debug_file [build_id_debug_filename_get $binfile]
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+regsub -all ".debug$" $build_id_debug_file "" build_id_without_debug
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+
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+# Run to main
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+if { ![runto_main] } {
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+ return -1
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+}
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+
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+# We first need to generate a corefile
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+set escapedfilename [string_to_regexp ${objdir}/${subdir}/gcore.test]
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+set core_supported 0
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+gdb_test_multiple "gcore ${objdir}/${subdir}/gcore.test" \
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+ "save a corefile" \
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+{
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+ -re "Saved corefile ${escapedfilename}\[\r\n\]+$gdb_prompt $" {
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+ pass "save a corefile"
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+ global core_supported
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+ set core_supported 1
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+ }
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+ -re "Can't create a corefile\[\r\n\]+$gdb_prompt $" {
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+ unsupported "save a corefile"
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+ global core_supported
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+ set core_supported 0
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+ }
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+}
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+
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+if {!$core_supported} {
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+ return -1
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+}
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+
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+# Move the binfile to a temporary name
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+remote_exec build "mv $binfile ${binfile}.old"
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+
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+# Reinitialize GDB and see if we get a yum warning
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+gdb_exit
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+gdb_start
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+gdb_reinitialize_dir $srcdir/$subdir
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+
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+with_test_prefix "first run:" {
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+ gdb_test "set build-id-verbose 1" "" \
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+ "set build-id-verbose"
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+
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+ gdb_test "set debug-file-directory ${objdir}/${subdir}" "" \
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+ "set debug-file-directory"
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+
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+ gdb_test "core-file ${objdir}/${subdir}/gcore.test" \
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+ "Missing separate debuginfo for the main executable file\r\nTry: yum --enablerepo='\\*debug\\*' install $objdir/$subdir/$build_id_without_debug\r\n.*" \
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+ "test first yum warning"
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+}
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+
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+# Now we define and create our .build-id
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+file mkdir [file dirname ${objdir}/${subdir}/${build_id_without_debug}]
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+# Cannot use "file link" (from TCL) because it requires the target file to
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+# exist.
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+remote_exec build "ln -s $binfile ${objdir}/${subdir}/${build_id_without_debug}"
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+
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+# Reinitialize GDB to get the second yum warning
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+gdb_exit
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+gdb_start
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+gdb_reinitialize_dir $srcdir/$subdir
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+
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+with_test_prefix "second run:" {
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+ gdb_test "set build-id-verbose 1" "" \
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+ "set build-id-verbose"
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+
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+ gdb_test "set debug-file-directory ${objdir}/${subdir}" "" \
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+ "set debug-file-directory"
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+
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+ gdb_test "core-file ${objdir}/${subdir}/gcore.test" \
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+ "Missing separate debuginfo for the main executable file\r\nTry: yum --enablerepo='\\*debug\\*' install $binfile\r\n.*" \
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+ "test second yum warning"
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+}
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+
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+# Leaving the link there will cause breakage in the next run.
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+remote_exec build "rm -f ${objdir}/${subdir}/${build_id_without_debug}"
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Index: gdb-7.9.90.20150709/gdb/build-id.c
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===================================================================
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--- gdb-7.9.90.20150709.orig/gdb/build-id.c 2015-07-09 22:22:26.278304653 +0200
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+++ gdb-7.9.90.20150709/gdb/build-id.c 2015-07-09 22:22:51.398502329 +0200
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@@ -589,7 +589,10 @@ build_id_to_debug_bfd (size_t build_id_l
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do_cleanups (inner);
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if (abfd == NULL)
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- continue;
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+ {
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+ filename = NULL;
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+ continue;
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+ }
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if (build_id_verify (abfd, build_id_len, build_id))
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break;
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