* [pushed] [gdb/testsuite] Fix gdb.gdb/python-helper.exp with -O2 -flto=auto and gcc 7.5.0
@ 2023-07-19 7:18 Tom de Vries
0 siblings, 0 replies; only message in thread
From: Tom de Vries @ 2023-07-19 7:18 UTC (permalink / raw)
To: gdb-patches
With a gdb build with -O2 -flto=auto using gcc 7.5.0, I run into:
...
(gdb) ptype global_c^M
^M
Thread 1 "xgdb" hit Breakpoint 3, \
_Z12c_print_typeP4typePKcP7ui_fileii8languagePK18type_print_options () at \
gdb/c-typeprint.c:175^M
175 {^M
(outer-gdb) FAIL: gdb.gdb/python-helper.exp: hit breakpoint in outer gdb again
...
This is a problem with the debug info, which marks the CU containing the
function declaration as C rather than C++. This is fixed in gcc 8 and later.
Work around this compiler problem by allowing the mangled name.
Tested on x86_64-linux.
PR testsuite/30648
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30648
---
gdb/testsuite/gdb.gdb/python-helper.exp | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/gdb/testsuite/gdb.gdb/python-helper.exp b/gdb/testsuite/gdb.gdb/python-helper.exp
index 217f123302d..719c3975f5d 100644
--- a/gdb/testsuite/gdb.gdb/python-helper.exp
+++ b/gdb/testsuite/gdb.gdb/python-helper.exp
@@ -193,8 +193,12 @@ proc test_python_helper {} {
send_inferior "ptype global_c\n"
set test "hit breakpoint in outer gdb again"
set in_outer_gdb 0
+ # With gdb build with -O2 -flto=auto and gcc 7.5.0, we get the mangled
+ # name of c_print_type due to a problem in the debug info, so we work
+ # around this by less strict matching.
+ set fn_name "\[^\r\n\]*c_print_type\[^\r\n\]*"
gdb_test_multiple "" $test -prompt $outer_prompt_re {
- -re -wrap "Breakpoint $bkptno_numopt_re, c_print_type.*" {
+ -re -wrap "Breakpoint $bkptno_numopt_re, $fn_name.*" {
pass $gdb_test_name
set in_outer_gdb 1
}
base-commit: 03c02b696e90714a0ae2c0200d3c65cfffcaa1ee
--
2.35.3
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2023-07-19 7:18 [pushed] [gdb/testsuite] Fix gdb.gdb/python-helper.exp with -O2 -flto=auto and gcc 7.5.0 Tom de Vries
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