From: Nathan Sidwell <nathan@acm.org>
Date: Sun, 2 Nov 2025 00:02:47 +0000 (-0400)
Subject: diagnostics: Print invocation on ICE
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=358ab6c5ab4d70967ba83a8b5fc426c34d628316;p=thirdparty%2Fgcc.git

diagnostics: Print invocation on ICE

Print the compiler's invocation upon ICE. Particularly useful on LTO
crashes.

	gcc/
	* diagnostics/context.cc (context::action_after_output): Print
	invocation on ICE.
---

diff --git a/gcc/diagnostics/context.cc b/gcc/diagnostics/context.cc
index 9cb13acc520..03d57066584 100644
--- a/gcc/diagnostics/context.cc
+++ b/gcc/diagnostics/context.cc
@@ -1003,10 +1003,11 @@ context::action_after_output (enum kind diag_kind)
 	/* Attempt to ensure that any outputs are flushed e.g. that .sarif
 	   files are written out.
 	   Only do it once.  */
-	static bool finishing_due_to_ice = false;
-	if (!finishing_due_to_ice)
+	static char **saved_argv = nullptr;
+	if (!saved_argv)
 	  {
-	    finishing_due_to_ice = true;
+	    saved_argv = m_original_argv;
+	    m_original_argv = nullptr;
 	    finish ();
 	  }
 
@@ -1021,6 +1022,12 @@ context::action_after_output (enum kind diag_kind)
 	if (m_abort_on_error)
 	  real_abort ();
 
+	bool space = false;
+	for (auto *argv = saved_argv; *argv; space = true)
+	  fnotice (stderr, &" %s"[1 - space], *argv++);
+	fnotice (stderr, "\n");
+	freeargv (saved_argv);
+
 	if (m_report_bug)
 	  fnotice (stderr, "Please submit a full bug report, "
 		   "with preprocessed source.\n");