* [PATCH] [gdb/testsuite] Fix regexp in vgdb_start
@ 2024-01-25 11:03 Tom de Vries
2024-01-25 14:44 ` Tom Tromey
0 siblings, 1 reply; 2+ messages in thread
From: Tom de Vries @ 2024-01-25 11:03 UTC (permalink / raw)
To: gdb-patches
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 "$vgdbcmd" " in \\.?_start .*" "target remote for vgdb"
...
Which variant you get is determined by presence of debug info.
Fix this by also matching the "_start () at" variant.
Tested aarch64-linux and x86_64-linux.
---
gdb/testsuite/lib/valgrind.exp | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/gdb/testsuite/lib/valgrind.exp b/gdb/testsuite/lib/valgrind.exp
index 11d92fff26a..2f2d58844f4 100644
--- a/gdb/testsuite/lib/valgrind.exp
+++ b/gdb/testsuite/lib/valgrind.exp
@@ -92,7 +92,10 @@ proc vgdb_start { {active_at_startup 1} } {
set vgdbcmd "target remote | vgdb --wait=2 --max-invoke-ms=2500 --pid=$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 $binfile run a bit before attaching. This is a bit of a hack,
# in that it lets test-case valgrind-infcall-2.exp run to the point of
base-commit: 726f209eb1b05842d816eac8b0b8f9c7f6cd9fbc
--
2.35.3
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] [gdb/testsuite] Fix regexp in vgdb_start
2024-01-25 11:03 [PATCH] [gdb/testsuite] Fix regexp in vgdb_start Tom de Vries
@ 2024-01-25 14:44 ` Tom Tromey
0 siblings, 0 replies; 2+ messages in thread
From: Tom Tromey @ 2024-01-25 14:44 UTC (permalink / raw)
To: Tom de Vries; +Cc: gdb-patches
>>>>> "Tom" == Tom de Vries <tdevries@suse.de> writes:
Tom> The fail happens in vgdb_start because the regexp only matches the
Tom> "in _start ()" variant, not the "_start () at":
Tom> ...
Tom> gdb_test "$vgdbcmd" " in \\.?_start .*" "target remote for vgdb"
Tom> ...
Tom> Which variant you get is determined by presence of debug info.
Tom> Fix this by also matching the "_start () at" variant.
Seems reasonable to me.
Approved-By: Tom Tromey <tom@tromey.com>
Tom
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