| # Copyright 2015-2021 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/>. |
| |
| # Test ability to load an elf64-i386 core file. The provided core file was |
| # elf64-x8664 one but it got binary patched to i386: |
| # Elf32_Ehdr.e_machine @0x12..0x13 |
| # Elf64_Ehdr.e_machine @0x12..0x13 |
| # #define EM_386 3 /* Intel 80386 */ |
| # #define EM_X86_64 62 /* AMD x86-64 architecture */ |
| # patch @0x12: 0x3E -> 0x03 |
| |
| if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } then { |
| verbose "Skipping i386 biarch core test." |
| return |
| } |
| |
| standard_testfile |
| |
| gdb_exit |
| gdb_start |
| gdb_reinitialize_dir $srcdir/$subdir |
| |
| set test "complete set gnutarget" |
| gdb_test_multiple "complete set gnutarget " $test { |
| -re "set gnutarget elf64-little\r\n(.*\r\n)?$gdb_prompt $" { |
| pass $test |
| } |
| -re "\r\n$gdb_prompt $" { |
| pass $test |
| untested ".text is readable" |
| return |
| } |
| } |
| |
| set corebz2file ${srcdir}/${subdir}/${testfile}.core.bz2 |
| set corefile [standard_output_file ${testfile}.core] |
| # Entry point of the original executable. |
| set address 0x400078 |
| |
| if {[catch "system \"bzip2 -dc ${corebz2file} >${corefile}\""] != 0} { |
| untested "failed bzip2" |
| return -1 |
| } |
| file stat ${corefile} corestat |
| if {$corestat(size) != 102400} { |
| untested "bzip2 produces invalid result" |
| return -1 |
| } |
| |
| # First check if this particular GDB supports i386, otherwise we should not |
| # expect the i386 core file to be loaded successfully. |
| set supports_arch_i386 1 |
| set test "complete set architecture i386" |
| gdb_test_multiple $test $test { |
| -re "\r\nset architecture i386\r\n(.*\r\n)?$gdb_prompt $" { |
| } |
| -re "\r\n$gdb_prompt $" { |
| set supports_arch_i386 0 |
| } |
| } |
| |
| # Wrongly built GDB complains by: |
| # "..." is not a core dump: File format not recognized |
| # As the provided test core has 64bit PRSTATUS i386 built GDB cannot parse it. |
| # This is just a problem of the test case, real-world elf64-i386 file will have |
| # 32bit PRSTATUS. One cannot prepare elf64-i386 core file from elf32-i386 by |
| # objcopy as it corrupts the core file beyond all recognition. |
| # The output therefore does not matter much, just we should not get GDB |
| # internal error. |
| # |
| # If this particular GDB does not support i386, it is expected GDB will not |
| # recognize the core file. If it does anyway, it should not crash. |
| set test "load core file" |
| gdb_test_multiple "core-file ${corefile}" $test { |
| -re "no core file handler recognizes format.*\r\n$gdb_prompt $" { |
| if { $supports_arch_i386 } { |
| fail $test |
| } else { |
| pass $test |
| untested ".text is readable (core file unrecognized)" |
| return |
| } |
| } |
| -re "\r\n$gdb_prompt $" { |
| pass $test |
| } |
| } |
| |
| # Test if at least the core file segments memory has been loaded. |
| # https://bugzilla.redhat.com/show_bug.cgi?id=457187 |
| gdb_test "x/bx $address" "\r\n\[ \t\]*$address:\[ \t\]*0xf4\[ \t\]*" ".text is readable" |