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gdb/testsuite: Add libc_has_debug_info require helper

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Factor the test for libc debug info out of gdb.base/relativedebug.exp to
a new procedure.

Also, change the "info sharedlibrary" test to explicitly detect when
libc has debug info.

Approved-by: Kevin Buettner <kevinb@redhat.com>
This commit is contained in:
Thiago Jung Bauermann 2024-04-19 03:02:46 -03:00
parent f908b93b48
commit f5ef12c3f1
2 changed files with 57 additions and 12 deletions
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13
gdb/testsuite/gdb.base/relativedebug.exp
View File

@ -13,7 +13,7 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
require {!target_info exists gdb,nosignals}
require {!target_info exists gdb,nosignals} libc_has_debug_info
standard_testfile .c
@ -28,17 +28,6 @@ clean_restart ${binfile}
runto_main
set test "info sharedlibrary"
gdb_test_multiple $test $test {
-re ".*\(\\*\)\[^\r\n\]*/libc\.so.*$gdb_prompt $" {
# Skip the test below if libc doesn't have debug info.
unsupported "libc doesn't have debug info"
return -1
}
-re ".*$gdb_prompt $" {
}
}
# pause () -> SIGALRM -> handler () -> abort ()
gdb_test "continue" "Program received signal SIGABRT.*"

56
gdb/testsuite/lib/gdb.exp
View File

@ -3699,6 +3699,62 @@ proc support_displaced_stepping {} {
return 0
}
# Return 1 if GDB can find the libc debug info, or 0 and a reason string if it
# can't. This procedure is meant to be called by the require procedure.
gdb_caching_proc libc_has_debug_info {} {
global srcdir subdir gdb_prompt inferior_exited_re
set me "libc_has_debug_info"
# Compile a test program.
set src {
#include <stdio.h>
int main (void) {
printf ("Hello, world!\n");
return 0;
}
}
if {![gdb_simple_compile $me $src executable {debug}]} {
return [list 0 "failed to compile test program"]
}
# No error message, compilation succeeded so now run it via gdb.
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load "$obj"
runto_main
set test "info sharedlibrary libc.so"
gdb_test_multiple $test $test {
-re ".*\(\\*\)\[^\r\n\]*/libc\.so.*$gdb_prompt $" {
# Matched the "(*)" in the "Syms Read" columns which means:
# "(*): Shared library is missing debugging information."
verbose -log "$me: libc doesn't have debug info"
set libc_has_debug_info 0
set message "libc doesn't have debug info"
}
-re ".*Yes\[ \t\]+\[^\r\n\]*/libc\.so.*$gdb_prompt $" {
verbose -log "$me: libc has debug info"
set libc_has_debug_info 1
}
default {
set libc_has_debug_info 0
set message "libc not found in the inferior"
}
}
gdb_exit
remote_file build delete $obj
verbose "$me: returning $libc_has_debug_info" 2
if { $libc_has_debug_info } {
return $libc_has_debug_info
} else {
return [list $libc_has_debug_info $message]
}
}
# Run a test on the target to see if it supports vmx hardware. Return 1 if so,
# 0 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.