From f9a92ea1cb1dd2aa9b3f9c83c04d7d01c1f6e148 Mon Sep 17 00:00:00 2001 From: John Keeping Date: Tue, 7 Feb 2023 19:58:10 +0000 Subject: [PATCH] package/gcc: map debug prefix when reproducible When building with BR2_REPRODUCIBLE the toolchain wrapper passes -fdebug-prefix-map for all packages that are built. But this doesn't affect the target libraries (like libgcc) built by GCC's build system. GCC 4.3 added a configure option to set the debug prefix map for these libraries, which is used here to avoid encoding potentially non-reproducible build paths into the debug data. Signed-off-by: John Keeping Signed-off-by: Yann E. MORIN --- package/gcc/gcc.mk | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/package/gcc/gcc.mk b/package/gcc/gcc.mk index ec6f3b550a..6dfd93f2a4 100644 --- a/package/gcc/gcc.mk +++ b/package/gcc/gcc.mk @@ -84,6 +84,10 @@ HOST_GCC_COMMON_CONF_OPTS = \ --with-bugurl="http://bugs.buildroot.net/" \ --without-zstd +ifeq ($(BR2_REPRODUCIBLE),y) +HOST_GCC_COMMON_CONF_OPTS += --with-debug-prefix-map=$(BASE_DIR)=buildroot +endif + # Don't build documentation. It takes up extra space / build time, # and sometimes needs specific makeinfo versions to work HOST_GCC_COMMON_CONF_ENV = \