From e0d752d2881e86d4360913364322e02d5c55c587 Mon Sep 17 00:00:00 2001
From: CoprDistGit <infra@openeuler.org>
Date: Fri, 2 Aug 2024 07:07:44 +0000
Subject: automatic import of gdb

---
 gdb-glibc-strstr-workaround.patch | 132 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 gdb-glibc-strstr-workaround.patch

(limited to 'gdb-glibc-strstr-workaround.patch')

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"}
-- 
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