compiler: -fasynchronous-unwind-tables hardening

Increased reliability of backtraces. Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

compiler: -fasynchronous-unwind-tables hardening
21b00b0a · Christian Brauner · fa10d27c · 21b00b0a
Unverified Commit 21b00b0a authored Mar 11, 2019 by Christian Brauner
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configure.ac configure.ac +1 -0

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--- a/configure.ac
+++ b/configure.ac
@@ -711,6 +711,7 @@ AX_CHECK_COMPILE_FLAG([-Werror=shift-count-overflow], [CFLAGS="$CFLAGS -Werror=s
 AX_CHECK_COMPILE_FLAG([-Werror=shift-overflow=2], [CFLAGS="$CFLAGS -Werror=shift-overflow=2"],,[-Werror])
 AX_CHECK_COMPILE_FLAG([-Wdate-time], [CFLAGS="$CFLAGS -Wdate-time"],,[-Werror])
 AX_CHECK_COMPILE_FLAG([-Wnested-externs], [CFLAGS="$CFLAGS -Wnested-externs"],,[-Werror])
+AX_CHECK_COMPILE_FLAG([-fasynchronous-unwind-tables], [CFLAGS="$CFLAGS -fasynchronous-unwind-tables"],,[-Werror])

 AX_CHECK_LINK_FLAG([-z relro], [LDLAGS="$LDLAGS -z relro"],,[])
 AX_CHECK_LINK_FLAG([-z now], [LDLAGS="$LDLAGS -z now"],,[])