| From de93adfb6f48100946bba2c3abad2a77a0cfde0b Mon Sep 17 00:00:00 2001 |
| From: Fabrice Fontaine <fontaine.fabrice@gmail.com> |
| Date: Sun, 24 Nov 2019 09:52:01 +0100 |
| Subject: [PATCH] ffi_powerpc.h: fix build failure with powerpc7 |
| |
| This is a patch pulled down from the following: |
| https://github.com/buildroot/buildroot/blob/78926f610b1411b03464152472fd430012deb9ac/package/libffi/0004-ffi_powerpc.h-fix-build-failure-with-powerpc7.patch |
| |
| This issue is being hit on OpenBMC code when pulling the latest |
| libffi tag and building on a P8 ppc64le machine. I verified this |
| patch fixes the issue we are seeing. |
| |
| Below is the original commit message: |
| |
| Sicne commit 73dd43afc8a447ba98ea02e9aad4c6898dc77fb0, build on powerpc7 |
| fails on: |
| |
| In file included from ../src/powerpc/ffi.c:33:0: |
| ../src/powerpc/ffi_powerpc.h:61:9: error: '_Float128' is not supported on this target |
| typedef _Float128 float128; |
| ^~~~~~~~~ |
| |
| Fix this build failure by checking for __HAVE_FLOAT128 before using |
| _Float128, as _Float128 is enabled only on specific conditions, see |
| output/host/powerpc64-buildroot-linux-gnu/sysroot/usr/include/bits/floatn.h: |
| |
| /* Defined to 1 if the current compiler invocation provides a |
| floating-point type with the IEEE 754 binary128 format, and this glibc |
| includes corresponding *f128 interfaces for it. */ |
| #if defined _ARCH_PWR8 && defined __LITTLE_ENDIAN__ && (_CALL_ELF == 2) \ |
| && defined __FLOAT128__ && !defined __NO_LONG_DOUBLE_MATH |
| # define __HAVE_FLOAT128 1 |
| #else |
| # define __HAVE_FLOAT128 0 |
| #endif |
| |
| Fixes: |
| - http://autobuild.buildroot.org/results/5c9dd8fb3b6a128882b6250f197c80232d8a3b53 |
| |
| Upstream-Status: Submitted [https://github.com/libffi/libffi/pull/561] |
| Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> |
| Signed-off-by: Andrew Geissler <geissonator@yahoo.com> |
| --- |
| src/powerpc/ffi_powerpc.h | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/src/powerpc/ffi_powerpc.h b/src/powerpc/ffi_powerpc.h |
| index 8e2f2f0..960a5c4 100644 |
| --- a/src/powerpc/ffi_powerpc.h |
| +++ b/src/powerpc/ffi_powerpc.h |
| @@ -57,7 +57,7 @@ typedef union |
| double d; |
| } ffi_dblfl; |
| |
| -#if defined(__FLOAT128_TYPE__) |
| +#if defined(__FLOAT128_TYPE__) && defined(__HAVE_FLOAT128) |
| typedef _Float128 float128; |
| #elif defined(__FLOAT128__) |
| typedef __float128 float128; |
| -- |
| 2.21.0 (Apple Git-122) |
| |