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From: Corinna Vinschen <corinna@sourceware.org>
To: newlib-cvs@sourceware.org
Subject: [newlib-cygwin] RISC-V: Fix alignment issue in sigjmp_buf
Date: Thu, 18 Jan 2018 08:21:00 -0000	[thread overview]
Message-ID: <20180118082124.111312.qmail@sourceware.org> (raw)

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=cba678ba02428b02e08a9a169d57e70f271d789f

commit cba678ba02428b02e08a9a169d57e70f271d789f
Author: Kito Cheng <kito.cheng@gmail.com>
Date:   Fri Nov 17 14:50:52 2017 +0800

    RISC-V: Fix alignment issue in sigjmp_buf

Diff:
---
 newlib/libc/include/machine/setjmp.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/newlib/libc/include/machine/setjmp.h b/newlib/libc/include/machine/setjmp.h
index b33f437..9212f84 100644
--- a/newlib/libc/include/machine/setjmp.h
+++ b/newlib/libc/include/machine/setjmp.h
@@ -359,7 +359,9 @@ _BEGIN_STD_C
 #endif
 
 #ifdef __riscv
-#define _JBTYPE long
+/* _JBTYPE using long long to make sure the alignment is align to 8 byte,
+   otherwise in rv32imafd, store/restore FPR may mis-align.  */
+#define _JBTYPE long long
 #ifdef __riscv_32e
 #define _JBLEN ((4*sizeof(long))/sizeof(long))
 #else


                 reply	other threads:[~2018-01-18  8:21 UTC|newest]

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