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mpir: fix build on ARM with old binutils versions

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Old binutils versions are affected by a bug when the assembly code has
whitespace between [ ] signs, causing a build failure of the mpir
package with ARM toolchains using such old binutils versions.

This commit fixes that by adding a patch that removes those whitespaces.

Fixes:

 - http://autobuild.buildroot.net/results/ec67ffdef74b9a61d0491e71f8cb2f8f0b6daa50/
   armv7-ctng-linux-gnueabihf Crosstool-NG toolchain

 - http://autobuild.buildroot.net/results/2e4a27af60065db51aca9e69701bc191d24b2209/
   armv5-ctng-linux-gnueabi Crosstool-NG toolchain

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Thomas Petazzoni 2017-05-08 21:45:47 +02:00 committed by Peter Korsgaard
parent f8c4e51d40
commit 4c0fdc6730
1 changed files with 40 additions and 0 deletions
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40
package/mpir/0001-mpn-arm-udiv.asm-workaround-binutils-bug-14887.patch Normal file
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@ -0,0 +1,40 @@
From d858ce52d1971cb4e8500b0ebc0472fdae4686ec Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Sun, 7 May 2017 23:12:04 +0200
Subject: [PATCH] mpn/arm/udiv.asm: workaround binutils bug #14887
Old binutils versions are affected by bug #14887,
https://sourceware.org/bugzilla/show_bug.cgi?id=14887, which causes a
build failure when a register specification is surrounded by
whitespaces. Removing those whitespaces works around the issue.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
mpn/arm/udiv.asm | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mpn/arm/udiv.asm b/mpn/arm/udiv.asm
index 25197a6..ed11eb3 100644
--- a/mpn/arm/udiv.asm
+++ b/mpn/arm/udiv.asm
@@ -50,7 +50,7 @@ L(oop): divstep(n1,n0,d)
teq r12, #0
bne L(oop)
- str n1, [ rem_ptr ] C store remainder
+ str n1, [rem_ptr] C store remainder
adc r0, n0, n0 C quotient: add last carry from divstep
mov pc, lr
@@ -89,7 +89,7 @@ L(oop2):
addcs n0, n0, #1 C adjust quotient
L(_even_divisor):
- str n1, [ rem_ptr ] C store remainder
+ str n1, [rem_ptr] C store remainder
mov r0, n0 C quotient
ldmfd sp!, { r8, pc }
EPILOGUE(mpn_udiv_qrnnd)
--
2.7.4