mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-27 08:12:30 +00:00
48 lines
2.0 KiB
Diff
48 lines
2.0 KiB
Diff
From 175cef4163dd60f95106cfd5f593b8a4e09d02c9 Mon Sep 17 00:00:00 2001
|
|
From: Joseph Myers <joseph@codesourcery.com>
|
|
Date: Tue, 20 May 2014 21:27:13 +0000
|
|
Subject: [PATCH] Fix ARM build with GCC trunk.
|
|
|
|
sysdeps/unix/sysv/linux/arm/unwind-resume.c and
|
|
sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c have static
|
|
variables that are written in C code but only read from toplevel asms.
|
|
Current GCC trunk now optimizes away such apparently write-only static
|
|
variables, so causing a build failure. This patch marks those
|
|
variables with __attribute_used__ to avoid that optimization.
|
|
|
|
Tested that this fixes the build for ARM.
|
|
|
|
* sysdeps/unix/sysv/linux/arm/unwind-forcedunwind.c
|
|
(libgcc_s_resume): Use __attribute_used__.
|
|
* sysdeps/unix/sysv/linux/arm/unwind-resume.c (libgcc_s_resume):
|
|
Likewise.
|
|
---
|
|
ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c | 3 ++-
|
|
ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-resume.c | 3 ++-
|
|
2 files changed, 4 insertions(+), 2 deletions(-)
|
|
|
|
--- a/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c
|
|
+++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-forcedunwind.c
|
|
@@ -22,7 +22,8 @@
|
|
#include <pthreadP.h>
|
|
|
|
static void *libgcc_s_handle;
|
|
-static void (*libgcc_s_resume) (struct _Unwind_Exception *exc);
|
|
+static void (*libgcc_s_resume) (struct _Unwind_Exception *exc)
|
|
+ __attribute_used__;
|
|
static _Unwind_Reason_Code (*libgcc_s_personality)
|
|
(_Unwind_State, struct _Unwind_Exception *, struct _Unwind_Context *);
|
|
static _Unwind_Reason_Code (*libgcc_s_forcedunwind)
|
|
--- a/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-resume.c
|
|
+++ b/ports/sysdeps/unix/sysv/linux/arm/nptl/unwind-resume.c
|
|
@@ -20,7 +20,8 @@
|
|
#include <stdio.h>
|
|
#include <unwind.h>
|
|
|
|
-static void (*libgcc_s_resume) (struct _Unwind_Exception *exc);
|
|
+static void (*libgcc_s_resume) (struct _Unwind_Exception *exc)
|
|
+ __attribute_used__;
|
|
static _Unwind_Reason_Code (*libgcc_s_personality)
|
|
(_Unwind_State, struct _Unwind_Exception *, struct _Unwind_Context *);
|
|
|