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Message-Id: <20190212153522.2371-1-AWilcox@Wilcox-Tech.com>
Date: Tue, 12 Feb 2019 09:35:22 -0600
From: "A. Wilcox" <AWilcox@...cox-Tech.com>
To: musl@...ts.openwall.com
Cc: "A. Wilcox" <AWilcox@...cox-Tech.com>
Subject: [PATCH] powerpc64: use a type for mcontext_t regs field
GCC Go dereferences `regs` for `nip`. Without this change, compilation
fails with the following message:
../../../libgo/runtime/go-signal.c: In function ‘getSiginfo’:
../../../libgo/runtime/go-signal.c:225:56: warning: dereferencing ‘void *’ pointer
ret.sigpc = ((ucontext_t*)(context))->uc_mcontext.regs->nip;
^~
../../../libgo/runtime/go-signal.c:225:56: error: request for member ‘nip’ in something not a structure or union
---
arch/powerpc64/bits/signal.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc64/bits/signal.h b/arch/powerpc64/bits/signal.h
index 34693a68..6736c69a 100644
--- a/arch/powerpc64/bits/signal.h
+++ b/arch/powerpc64/bits/signal.h
@@ -8,6 +8,8 @@
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#include <bits/user.h>
+
typedef unsigned long greg_t, gregset_t[48];
typedef struct {
@@ -29,7 +31,7 @@ typedef struct sigcontext {
int _pad0;
unsigned long handler;
unsigned long oldmask;
- void *regs;
+ struct pt_regs *regs;
gregset_t gp_regs;
fpregset_t fp_regs;
vrregset_t *v_regs;
--
2.19.2
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