From 71fcc4c096ec0b575522e4c2d0104ef7a71a13c5 Mon Sep 17 00:00:00 2001 From: Erik de Castro Lopo Date: Thu, 12 Mar 2015 14:36:50 +1100 Subject: Use the gold linker for linux/ARM and android/ARM targets. Fixes #8976 and #9873 by making use of the Binutils ld.gold linker explicit whenever the target is linux/ARM or android/ARM. This does not affect iOS where Apple provides its own linker. In order to achieve this, we need to add `-fuse-ld=gold` to the SettingsCCompilerLinkFlags setting and set SettingsLdCommand to `ld.gold` (or `${target}-ld.gold` when cross-compiling). In addition, simplifying the use of `$(CONF_GCC_LINKER_OPTS_STAGEn)`. This patch was tested by ensuring that the following worked as expected: * Native builds on linux/x86_64 (nothing changed). * Native builds on linux/arm (and uses the gold linker). * Linux to linux/arm cross compiles (and uses the cross gold linker). Contributions by Ben Gamari, Joachim Breitner and Reid Barton. Reviewers: nomeata, bgamari, austin, rwbarton Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D715 GHC Trac Issues: #8976 #9873 --- aclocal.m4 | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'aclocal.m4') diff --git a/aclocal.m4 b/aclocal.m4 index a4944c1357..871dacc370 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -565,6 +565,11 @@ AC_DEFUN([FPTOOLS_SET_C_LD_FLAGS], $3="$$3 -D_HPUX_SOURCE" $5="$$5 -D_HPUX_SOURCE" ;; + arm*linux*) + # On arm/linux and arm/android, tell gcc to link using the gold linker. + # Forcing LD to be ld.gold is done in configre.ac. + $3="$$3 -fuse-ld=gold" + ;; esac # If gcc knows about the stack protector, turn it off. -- cgit v1.2.1