forked from pool/elfutils
ecab619b56
- Add gcc9-tests-Don-t-printf-a-known-NULL-symname.patch in order to fix boo#1120864. OBS-URL: https://build.opensuse.org/request/show/701234 OBS-URL: https://build.opensuse.org/package/show/Base:System/elfutils?expand=0&rev=127
31 lines
1.0 KiB
Diff
31 lines
1.0 KiB
Diff
From 6978871366465aac849a303b2ea05ff5ab602261 Mon Sep 17 00:00:00 2001
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From: Mark Wielaard <mark@klomp.org>
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Date: Tue, 30 Apr 2019 20:36:39 +0200
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Subject: [PATCH] tests: Don't printf a known NULL symname.
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GCC9 on 32bit systems might warn about '%s' directive argument is null
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for symname in backtrace.c. Just check whether symname is NULL.
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Signed-off-by: Mark Wielaard <mark@klomp.org>
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---
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tests/ChangeLog | 4 ++++
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tests/backtrace.c | 2 +-
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2 files changed, 5 insertions(+), 1 deletion(-)
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diff --git a/tests/backtrace.c b/tests/backtrace.c
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index ecf55830..36c8b8c4 100644
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--- a/tests/backtrace.c
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+++ b/tests/backtrace.c
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@@ -185,7 +185,7 @@ frame_callback (Dwfl_Frame *state, void *frame_arg)
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symname = dwfl_module_addrname (mod, pc_adjusted);
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printf ("#%2d %#" PRIx64 "%4s\t%s\n", *framenop, (uint64_t) pc,
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- ! isactivation ? "- 1" : "", symname);
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+ ! isactivation ? "- 1" : "", symname ?: "<null>");
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pid_t tid = dwfl_thread_tid (thread);
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callback_verify (tid, *framenop, pc, symname, dwfl);
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(*framenop)++;
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--
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2.21.0
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