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7eaa2f24 JD |
1 | From de93adfb6f48100946bba2c3abad2a77a0cfde0b Mon Sep 17 00:00:00 2001 |
2 | From: Fabrice Fontaine <fontaine.fabrice@gmail.com> | |
3 | Date: Sun, 24 Nov 2019 09:52:01 +0100 | |
4 | Subject: [PATCH] ffi_powerpc.h: fix build failure with powerpc7 | |
5 | ||
6 | This is a patch pulled down from the following: | |
7 | https://github.com/buildroot/buildroot/blob/78926f610b1411b03464152472fd430012deb9ac/package/libffi/0004-ffi_powerpc.h-fix-build-failure-with-powerpc7.patch | |
8 | ||
9 | This issue is being hit on OpenBMC code when pulling the latest | |
10 | libffi tag and building on a P8 ppc64le machine. I verified this | |
11 | patch fixes the issue we are seeing. | |
12 | ||
13 | Below is the original commit message: | |
14 | ||
15 | Sicne commit 73dd43afc8a447ba98ea02e9aad4c6898dc77fb0, build on powerpc7 | |
16 | fails on: | |
17 | ||
18 | In file included from ../src/powerpc/ffi.c:33:0: | |
19 | ../src/powerpc/ffi_powerpc.h:61:9: error: '_Float128' is not supported on this target | |
20 | typedef _Float128 float128; | |
21 | ^~~~~~~~~ | |
22 | ||
23 | Fix this build failure by checking for __HAVE_FLOAT128 before using | |
24 | _Float128, as _Float128 is enabled only on specific conditions, see | |
25 | output/host/powerpc64-buildroot-linux-gnu/sysroot/usr/include/bits/floatn.h: | |
26 | ||
27 | /* Defined to 1 if the current compiler invocation provides a | |
28 | floating-point type with the IEEE 754 binary128 format, and this glibc | |
29 | includes corresponding *f128 interfaces for it. */ | |
30 | #if defined _ARCH_PWR8 && defined __LITTLE_ENDIAN__ && (_CALL_ELF == 2) \ | |
31 | && defined __FLOAT128__ && !defined __NO_LONG_DOUBLE_MATH | |
32 | # define __HAVE_FLOAT128 1 | |
33 | #else | |
34 | # define __HAVE_FLOAT128 0 | |
35 | #endif | |
36 | ||
37 | Fixes: | |
38 | - http://autobuild.buildroot.org/results/5c9dd8fb3b6a128882b6250f197c80232d8a3b53 | |
39 | ||
40 | Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> | |
41 | Signed-off-by: Andrew Geissler <geissonator@yahoo.com> | |
42 | --- | |
43 | src/powerpc/ffi_powerpc.h | 2 +- | |
44 | 1 file changed, 1 insertion(+), 1 deletion(-) | |
45 | ||
46 | diff --git a/src/powerpc/ffi_powerpc.h b/src/powerpc/ffi_powerpc.h | |
47 | index 8e2f2f0e..960a5c42 100644 | |
48 | --- a/src/powerpc/ffi_powerpc.h | |
49 | +++ b/src/powerpc/ffi_powerpc.h | |
50 | @@ -57,7 +57,7 @@ typedef union | |
51 | double d; | |
52 | } ffi_dblfl; | |
53 | ||
54 | -#if defined(__FLOAT128_TYPE__) | |
55 | +#if defined(__FLOAT128_TYPE__) && defined(__HAVE_FLOAT128) | |
56 | typedef _Float128 float128; | |
57 | #elif defined(__FLOAT128__) | |
58 | typedef __float128 float128; |