From mboxrd@z Thu Jan 1 00:00:00 1970 From: Timothy Lee Date: Tue, 26 Sep 2017 16:04:33 +1000 Subject: [Buildroot] [PATCH 1/1] Allow musl for ARMv4 to build with new binutils In-Reply-To: References: Message-ID: <20170926060433.10202-1-timothy.ty.lee@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net New binutils (since 2.27.51) cannot build musl-1.1.16 due to breakage in ARMv4 atomics asm. This patch from upstream musl repository is needed until musl-1.1.17 is released: https://git.musl-libc.org/cgit/musl/commit/?id=b261a24256792177a5f0531dbb25cc6267220ca5 Signed-off-by: Timothy Lee --- .../0002-arm-atomics-asm-with-new-binutils.patch | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 package/musl/0002-arm-atomics-asm-with-new-binutils.patch diff --git a/package/musl/0002-arm-atomics-asm-with-new-binutils.patch b/package/musl/0002-arm-atomics-asm-with-new-binutils.patch new file mode 100644 index 0000000000..510c38a90d --- /dev/null +++ b/package/musl/0002-arm-atomics-asm-with-new-binutils.patch @@ -0,0 +1,42 @@ +From b261a24256792177a5f0531dbb25cc6267220ca5 Mon Sep 17 00:00:00 2001 +From: Rich Felker +Date: Wed, 15 Feb 2017 17:05:50 -0500 +Subject: fix build regression in arm atomics asm with new binutils + +binutils commit bada43421274615d0d5f629a61a60b7daa71bc15 tightened +immediate fixup handling in gas in such a way that the final .arch of +an object file must be compatible with the fixups used when the +instruction was assembled; this in turn broke assembling of atomics.s, +at least in thumb mode. + +it's not clear whether this should be considered a bug in gas, but +.object_arch is preferable anyway for our purpose here of controlling +the ISA level tag on the object file being produced, and it's the +intended directive for use in object files with runtime code +selection. research by Szabolcs Nagy confirmed that .object_arch is +supported in all relevant versions of binutils and clang's integrated +assembler. + +patch by Reiner Herrmann. + +Signed-off-by: Timothy Lee +--- + src/thread/arm/atomics.s | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/thread/arm/atomics.s b/src/thread/arm/atomics.s +index 202faa4..101ad39 100644 +--- a/src/thread/arm/atomics.s ++++ b/src/thread/arm/atomics.s +@@ -84,7 +84,7 @@ __a_gettp_cp15: + bx lr + + /* Tag this file with minimum ISA level so as not to affect linking. */ +-.arch armv4t ++.object_arch armv4t + .eabi_attribute 6,2 + + .data +-- +cgit v0.11.2 + -- 2.14.1