1 # Copyright 2015-2024 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # Test ability to load an elf64-i386 core file. The provided core file was
17 # elf64-x8664 one but it got binary patched to i386:
18 # Elf32_Ehdr.e_machine @0x12..0x13
19 # Elf64_Ehdr.e_machine @0x12..0x13
20 # #define EM_386 3 /* Intel 80386 */
21 # #define EM_X86_64 62 /* AMD x86-64 architecture */
22 # patch @0x12: 0x3E -> 0x03
24 require {is_any_target "i?86-*-*" "x86_64-*-*"}
30 set gnutargets [get_set_option_choices "set gnutarget"]
31 if { [lsearch -exact $gnutargets elf64-little] == -1 } {
32 untested ".text is readable"
36 set corebz2file ${srcdir}/${subdir}/${testfile}.core.bz2
37 # Entry point of the original executable.
40 set corefile [decompress_bz2 $corebz2file]
41 if { $corefile == "" } {
42 untested "failed bzip2"
46 file stat ${corefile} corestat
47 if {$corestat(size) != 102400} {
48 untested "bzip2 produces invalid result"
52 set corefile [gdb_remote_download host $corefile]
54 # First check if this particular GDB supports i386, otherwise we should not
55 # expect the i386 core file to be loaded successfully.
56 set archs [get_set_option_choices "set architecture" "i386"]
57 set supports_arch_i386 [expr [lsearch -exact $archs i386] != -1]
59 # Wrongly built GDB complains by:
60 # "..." is not a core dump: File format not recognized
61 # As the provided test core has 64bit PRSTATUS i386 built GDB cannot parse it.
62 # This is just a problem of the test case, real-world elf64-i386 file will have
63 # 32bit PRSTATUS. One cannot prepare elf64-i386 core file from elf32-i386 by
64 # objcopy as it corrupts the core file beyond all recognition.
65 # The output therefore does not matter much, just we should not get GDB
68 # If this particular GDB does not support i386, it is expected GDB will not
69 # recognize the core file. If it does anyway, it should not crash.
70 set test "load core file"
71 gdb_test_multiple "core-file ${corefile}" $test {
72 -re "no core file handler recognizes format.*\r\n$gdb_prompt $" {
73 if { $supports_arch_i386 } {
77 untested ".text is readable (core file unrecognized)"
81 -re "\r\n$gdb_prompt $" {
86 # Test if at least the core file segments memory has been loaded.
87 # https://bugzilla.redhat.com/show_bug.cgi?id=457187
88 gdb_test "x/bx $address" "\r\n\[ \t\]*$address:\[ \t\]*0xf4\[ \t\]*" ".text is readable"