From: Jens Remus <jremus@linux.ibm.com>
Date: Wed, 12 Aug 2026 12:39:50 +0000 (+0200)
Subject: gas: sframe: Add test for signal frame with unsupported CFI
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ce67ec902d836898d93c62f71ff2e97f774a0b95;p=thirdparty%2Fbinutils-gdb.git

gas: sframe: Add test for signal frame with unsupported CFI

Usually if the generation of SFrame from CFI directives encounters
unsupported CFI the generation of SFrame FDE is skipped.  For signal
frames (.cfi_signal_frame) an "empty" FDE without any FREs is generated
instead.

This adds a test for the issue fixed with commit fa11363bc9ad ("Ensure
that sframe_xlate_ctx_cleanup() doe snot leave any dangling pointers").

gas/testsuite/
	* gas/cfi-sframe/cfi-sframe.exp (cfi-sframe-common-14): Run
	new common test.
	* gas/cfi-sframe/cfi-sframe-common-14.d: New common test for
	signal frame with unsupported CFI.
	gas/cfi-sframe/cfi-sframe-common-14.s: Likewise.

Signed-off-by: Jens Remus <jremus@linux.ibm.com>
---

diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-14.d b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-14.d
new file mode 100644
index 00000000000..dcceab8d69b
--- /dev/null
+++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-14.d
@@ -0,0 +1,20 @@
+#as: --gsframe
+#objdump: --sframe=.sframe
+#name: Signal Frame with unsupported CFI
+#warning: \.cfi_def_cfa_offset with unsupported offset value
+#...
+Contents of the SFrame section .sframe:
+
+  Header :
+
+    Version: SFRAME_VERSION_3
+    Flags: SFRAME_F_FDE_FUNC_START_PCREL
+#?    CFA fixed FP offset: \-?\d+
+#?    CFA fixed RA offset: \-?\d+
+    Num FDEs: 1
+    Num FREs: 0
+
+  Function Index :
+    func idx \[0\]: pc = 0x0, size = 4 bytes, attr = \"S\"
+    STARTPC + CFA + FP + RA +
+#pass
diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-14.s b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-14.s
new file mode 100644
index 00000000000..9d6cf2a17e8
--- /dev/null
+++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-14.s
@@ -0,0 +1,5 @@
+	.cfi_startproc
+	.cfi_signal_frame
+	.long 0
+	.cfi_def_cfa_offset 1099511627808
+	.cfi_endproc
diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe.exp b/gas/testsuite/gas/cfi-sframe/cfi-sframe.exp
index ba6cbc13f72..d7418726f27 100644
--- a/gas/testsuite/gas/cfi-sframe/cfi-sframe.exp
+++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe.exp
@@ -50,6 +50,7 @@ if  { ([istarget "x86_64-*-*"] || [istarget "aarch64*-*-*"]
     run_dump_test "cfi-sframe-common-11"
     run_dump_test "cfi-sframe-common-12"
     run_dump_test "cfi-sframe-common-13"
+    run_dump_test "cfi-sframe-common-14"
 
     run_dump_test "common-empty-2"
     run_dump_test "common-empty-3"