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-rw-r--r--gdb/testsuite/ChangeLog6
-rw-r--r--gdb/testsuite/gdb.arch/i386-gnu-cfi.exp26
2 files changed, 25 insertions, 7 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index ac45381..73bbd00 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,5 +1,11 @@
2021-01-28 Tom de Vries <tdevries@suse.de>
+ * gdb.arch/i386-gnu-cfi.exp: Capture the position of function gate
+ in the backtrace, and use that in the rest of the test instead of
+ hardcoded constant 3. Use "frame" instead of "up" for robustness.
+
+2021-01-28 Tom de Vries <tdevries@suse.de>
+
* gdb.arch/i386-sse-stack-align.S: Rename g[0-4] to test_g[0-4].
* gdb.arch/i386-sse-stack-align.c: Same.
* gdb.arch/i386-sse-stack-align.exp: Same.
diff --git a/gdb/testsuite/gdb.arch/i386-gnu-cfi.exp b/gdb/testsuite/gdb.arch/i386-gnu-cfi.exp
index 4228140..657599b 100644
--- a/gdb/testsuite/gdb.arch/i386-gnu-cfi.exp
+++ b/gdb/testsuite/gdb.arch/i386-gnu-cfi.exp
@@ -58,21 +58,33 @@ gdb_test_multiple {} "continue to abort()" {
}
}
-# Backtrace would crash before.
-
-gdb_test "bt" \
- "main \\(\\) at .*${testfile}.c.*" \
- "backtrace"
+# Verify that the backtrace works (it would crash before). Use the backtrace
+# output to find the frame number for function "gate".
+set gate_n ""
+set backtrace_re \
+ [multi_line \
+ "" \
+ "#($decimal) *$hex in gate \[^\r\n\]*" \
+ "#$decimal *$hex in main \\(\\) at .*${testfile}.c.*"]
+gdb_test_multiple "backtrace" "" {
+ -re -wrap $backtrace_re {
+ set gate_n $expect_out(1,string)
+ pass $gdb_test_name
+ }
+}
+if { $gate_n == "" } {
+ return -1
+}
# Check we see the inserted `DW_CFA_GNU_negative_offset_extended' CFI.
# We see there the original CFI-stored filename `gate.c'.
-gdb_test "up 3" \
+gdb_test "frame $gate_n" \
"gate \\(\[^()\]*\\) at .*gate.c.*" \
"shift up to the modified frame"
gdb_test_multiple "info frame" "existence of the CFI inserted register" {
- -re "Stack level 3, frame at (0x\[0-9a-f\]+):.*Saved registers:.* ecx at (0x\[0-9a-f\]+),.*" {
+ -re "Stack level $gate_n, frame at (0x\[0-9a-f\]+):.*Saved registers:.* ecx at (0x\[0-9a-f\]+),.*" {
pass "existence of the CFI inserted register"
if { [string compare $expect_out(1,string) $expect_out(2,string)] } then {
fail "value of the CFI inserted register"