From ff4dd4ce33133e675b7bedc86b73357c04631cb9 Mon Sep 17 00:00:00 2001 From: Ariadne Conill Date: Fri, 21 Aug 2020 06:45:49 +0000 Subject: [PATCH 03/35] specs: turn on -Wl,-z,now by default Previously, we also used to turn on -z relro here, but we now build binutils with --enable-relro, which is functionally equivalent. Binutils does not appear to have a similar option for enabling -z now by default. --- gcc/doc/invoke.texi | 3 +++ gcc/gcc.cc | 1 + 2 files changed, 4 insertions(+) diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index b6731a4673c..f393c7846c6 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -17961,6 +17961,9 @@ For example, @option{-Wl,-Map,output.map} passes @option{-Map output.map} to the linker. When using the GNU linker, you can also get the same effect with @option{-Wl,-Map=output.map}. +NOTE: In Alpine Linux, for LDFLAGS, the option +@option{-Wl,-z,now} is used. To disable, use @option{-Wl,-z,nonow}. + @opindex u @item -u @var{symbol} Pretend the symbol @var{symbol} is undefined, to force linking of diff --git a/gcc/gcc.cc b/gcc/gcc.cc index 33b56e721d2..f82fae23c22 100644 --- a/gcc/gcc.cc +++ b/gcc/gcc.cc @@ -1144,6 +1144,7 @@ proper position among the other output files. */ "%{flto|flto=*:%