diff options
Diffstat (limited to 'gdb-glibc-strstr-workaround.patch')
| -rw-r--r-- | gdb-glibc-strstr-workaround.patch | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/gdb-glibc-strstr-workaround.patch b/gdb-glibc-strstr-workaround.patch new file mode 100644 index 0000000..da9c5de --- /dev/null +++ b/gdb-glibc-strstr-workaround.patch @@ -0,0 +1,132 @@ +From FEDORA_PATCHES Mon Sep 17 00:00:00 2001 +From: Fedora GDB patches <invalid@email.com> +Date: Fri, 27 Oct 2017 21:07:50 +0200 +Subject: gdb-glibc-strstr-workaround.patch + +;; Workaround PR libc/14166 for inferior calls of strstr. +;;=fedoratest: Compatibility with RHELs (unchecked which ones). + +diff --git a/gdb/testsuite/gdb.base/gnu-ifunc-strstr-workaround.exp b/gdb/testsuite/gdb.base/gnu-ifunc-strstr-workaround.exp +new file mode 100644 +--- /dev/null ++++ b/gdb/testsuite/gdb.base/gnu-ifunc-strstr-workaround.exp +@@ -0,0 +1,119 @@ ++# Copyright (C) 2012 Free Software Foundation, Inc. ++ ++# This program 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. ++# ++# This program 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/>. ++ ++# Workaround for: ++# invalid IFUNC DW_AT_linkage_name: memmove strstr time ++# http://sourceware.org/bugzilla/show_bug.cgi?id=14166 ++ ++if {[skip_shlib_tests]} { ++ return 0 ++} ++ ++set testfile "gnu-ifunc-strstr-workaround" ++set executable ${testfile} ++set srcfile start.c ++set binfile [standard_output_file ${executable}] ++ ++if [prepare_for_testing ${testfile}.exp $executable $srcfile] { ++ return -1 ++} ++ ++if ![runto_main] { ++ return 0 ++} ++ ++set test "ptype atoi" ++gdb_test_multiple $test $test { ++ -re "type = int \\(const char \\*\\)\r\n$gdb_prompt $" { ++ pass $test ++ } ++ -re "type = int \\(\\)\r\n$gdb_prompt $" { ++ untested "$test (no DWARF)" ++ return 0 ++ } ++ -re "type = <unknown return type> \\(\\)\r\n$gdb_prompt $" { ++ untested "$test (no DWARF)" ++ return 0 ++ } ++} ++ ++set addr "" ++set test "print strstr" ++gdb_test_multiple $test $test { ++ -re " = {<text gnu-indirect-function variable, no debug info>} (0x\[0-9a-f\]+) <strstr>\r\n$gdb_prompt $" { ++ set addr $expect_out(1,string) ++ pass $test ++ } ++ -re " = {<text gnu-indirect-function variable, no debug info>} (0x\[0-9a-f\]+) <__strstr>\r\n$gdb_prompt $" { ++ set addr $expect_out(1,string) ++ pass "$test (GDB workaround)" ++ } ++ -re " = {<text gnu-indirect-function variable, no debug info>} (0x\[0-9a-f\]+) <__libc_strstr>\r\n$gdb_prompt $" { ++ set addr $expect_out(1,string) ++ pass "$test (fixed glibc)" ++ } ++ -re " = {<text gnu-indirect-function variable, no debug info>} (0x\[0-9a-f\]+) <__libc_strstr_ifunc>\r\n$gdb_prompt $" { ++ set addr $expect_out(1,string) ++ pass "$test (fixed glibc)" ++ } ++ -re " = {char \\*\\(const char \\*, const char \\*\\)} 0x\[0-9a-f\]+ <strstr>\r\n$gdb_prompt $" { ++ untested "$test (gnu-ifunc not in use by glibc)" ++ return 0 ++ } ++} ++ ++set test "info sym" ++gdb_test_multiple "info sym $addr" $test { ++ -re "strstr in section \\.text of /lib\[^/\]*/libc.so.6\r\n$gdb_prompt $" { ++ pass $test ++ } ++ -re " = {char \\*\\(const char \\*, const char \\*\\)} 0x\[0-9a-f\]+ <strstr>\r\n$gdb_prompt $" { ++ # unexpected ++ xfail "$test (not in libc.so.6)" ++ return 0 ++ } ++} ++ ++set test "info addr strstr" ++gdb_test_multiple $test $test { ++ -re "Symbol \"strstr\" is a function at address $addr\\.\r\n$gdb_prompt $" { ++ fail "$test (DWARF for strstr)" ++ } ++ -re "Symbol \"strstr\" is at $addr in a file compiled without debugging\\.\r\n$gdb_prompt $" { ++ pass "$test" ++ } ++} ++ ++set test "print strstr second time" ++gdb_test_multiple "print strstr" $test { ++ -re " = {<text gnu-indirect-function variable, no debug info>} $addr <strstr>\r\n$gdb_prompt $" { ++ pass $test ++ } ++ -re " = {<text gnu-indirect-function variable, no debug info>} $addr <__strstr>\r\n$gdb_prompt $" { ++ pass "$test (GDB workaround)" ++ } ++ -re " = {<text gnu-indirect-function variable, no debug info>} $addr <__libc_strstr>\r\n$gdb_prompt $" { ++ pass "$test (fixed glibc)" ++ } ++ -re " = {<text gnu-indirect-function variable, no debug info>} $addr <__libc_strstr_ifunc>\r\n$gdb_prompt $" { ++ pass "$test (fixed glibc)" ++ } ++ -re " = {void \\*\\(void\\)} 0x\[0-9a-f\]+ <strstr>\r\n$gdb_prompt $" { ++ fail $test ++ } ++} ++ ++gdb_test {print (char *)strstr("abc","b")} { = 0x[0-9a-f]+ "bc"} ++gdb_test {print (char *)strstr("def","e")} { = 0x[0-9a-f]+ "ef"} |