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package/libffi: fix build failure on power7 and older

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Fixes:
 - http://autobuild.buildroot.org/results/3ab73995b8393592c0b147670d8ff7f8ebc8c79c

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Fabrice Fontaine 2019-12-23 22:36:10 +01:00 committed by Thomas Petazzoni
parent 92625702e4
commit d3f61350e3
1 changed files with 39 additions and 0 deletions
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39
package/libffi/0005-powerpc-fix-build-failure-on-power7-and-older.patch Normal file
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@ -0,0 +1,39 @@
From 01a75ed76ea7e57f1b7a5c183e2b1e890e6aa0fd Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyfox@gentoo.org>
Date: Thu, 28 Nov 2019 12:42:41 +0000
Subject: [PATCH] powerpc: fix build failure on power7 and older (#532)
Build failure looks as:
```
libtool: compile: powerpc-unknown-linux-gnu-gcc \
-O2 -mcpu=powerpc -mtune=powerpc -pipe ... -c src/powerpc/ffi.c ...
In file included from src/powerpc/ffi.c:33:
src/powerpc/ffi_powerpc.h:65:9: error: '__int128' is not supported on this target
65 | typedef __int128 float128;
| ^~~~~~~~
```
The fix avoids using __int128 in favour of aligned char[16].
Closes: https://github.com/libffi/libffi/issues/531
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
[Retrieved from:
https://github.com/libffi/libffi/commit/01a75ed76ea7e57f1b7a5c183e2b1e890e6aa0fd]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.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 5ee2a709..8e2f2f0e 100644
--- a/src/powerpc/ffi_powerpc.h
+++ b/src/powerpc/ffi_powerpc.h
@@ -62,7 +62,7 @@ typedef _Float128 float128;
#elif defined(__FLOAT128__)
typedef __float128 float128;
#else
-typedef __int128 float128;
+typedef char float128[16] __attribute__((aligned(16)));
#endif
void FFI_HIDDEN ffi_closure_SYSV (void);