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[gdb/testsuite] Fix regexp in vgdb_start

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On Fedora 39 aarch64 I run into:
...
(gdb) target remote | vgdb --wait=2 --max-invoke-ms=2500 --pid=2114437^M
Remote debugging using | vgdb --wait=2 --max-invoke-ms=2500 --pid=2114437^M
relaying data between gdb and process 2114437^M
warning: remote target does not support file transfer, \
  attempting to access files from local filesystem.^M
Reading symbols from /lib/ld-linux-aarch64.so.1...^M
_start () at ../sysdeps/aarch64/dl-start.S:22^M
warning: 22     ../sysdeps/aarch64/dl-start.S: No such file or directory^M
(gdb) FAIL: gdb.base/valgrind-infcall.exp: target remote for vgdb
...

For contrast, on openSUSE Leap 15.4 x86_64 I have:
...
(gdb) target remote | vgdb --wait=2 --max-invoke-ms=2500 --pid=18797^M
Remote debugging using | vgdb --wait=2 --max-invoke-ms=2500 --pid=18797^M
relaying data between gdb and process 18797^M
warning: remote target does not support file transfer, \
  attempting to access files from local filesystem.^M
Reading symbols from /lib64/ld-linux-x86-64.so.2...^M
(No debugging symbols found in /lib64/ld-linux-x86-64.so.2)^M
0x0000000004002550 in _start () from /lib64/ld-linux-x86-64.so.2^M
(gdb) PASS: gdb.base/valgrind-infcall.exp: target remote for vgdb
...

The fail happens in vgdb_start because the regexp only matches the
"in _start ()" variant, not the "_start () at":
...
       gdb_test "$vgdbcmd" " in \\.?_start .*" "target remote for vgdb"
...
Which variant you get is determined by presence of debug info.

Fix this by also matching the "_start () at" variant.

Tested aarch64-linux and x86_64-linux.

Approved-By: Tom Tromey <tom@tromey.com>
This commit is contained in:
Tom de Vries 2024-01-25 16:36:09 +01:00
parent 4201dd33a2
commit 033c5df840
1 changed files with 4 additions and 1 deletions
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5
gdb/testsuite/lib/valgrind.exp
View file

@ -92,7 +92,10 @@ proc vgdb_start { {active_at_startup 1} } {
set vgdbcmd "target remote | vgdb --wait=2 --max-invoke-ms=2500 --pid=$vgdbpid"
if { $active_at_startup } {
gdb_test "$vgdbcmd" " in \\.?_start .*" "target remote for vgdb"
set start_re1 " in \\.?_start "
set start_re2 "\\.?_start \\(\\) at "
gdb_test "$vgdbcmd" "($start_re1|$start_re2).*" \
"target remote for vgdb"
} else {
# Let $binfile run a bit before attaching. This is a bit of a hack,
# in that it lets test-case valgrind-infcall-2.exp run to the point of