commit 04b33e21866412689f18b7ad6daf0a54d8f959a7
author Khem Raj <raj.khem@gmail.com> Wed Jun 28 13:44:52 2017 -0700
committer Peter Maydell <peter.maydell@linaro.org> Thu Jul 20 10:10:28 2017 +0100
tree 523d1dd852e384caa38fb6de02b12891dfe6e9ed
parent d4e59218ab80e86015753782fb5378767a51ccd0

Replace 'struct ucontext' with 'ucontext_t' type

glibc used to have:

   typedef struct ucontext { ... } ucontext_t;

glibc now has:

   typedef struct ucontext_t { ... } ucontext_t;

(See https://sourceware.org/bugzilla/show_bug.cgi?id=21457
 for detail and rationale for the glibc change)

However, QEMU used "struct ucontext" in declarations. This is a
private name and compatibility cannot be guaranteed. Switch to
only using the standardized type name.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Message-id: 20170628204452.41230-1-raj.khem@gmail.com
Cc: Kamil Rytarowski <kamil@netbsd.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Laurent Vivier <laurent@vivier.eu>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[PMM: Rewrote commit message, based mostly on the one from
 Nathaniel McCallum]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

user-exec.c

diff --git a/user-exec.c b/user-exec.c
index a8f95fa..2a975ea 100644
--- a/user-exec.c
+++ b/user-exec.c
@@ -167,7 +167,7 @@
 #elif defined(__OpenBSD__)
     struct sigcontext *uc = puc;
 #else
-    struct ucontext *uc = puc;
+    ucontext_t *uc = puc;
 #endif
     unsigned long pc;
     int trapno;
@@ -222,7 +222,7 @@
 #elif defined(__OpenBSD__)
     struct sigcontext *uc = puc;
 #else
-    struct ucontext *uc = puc;
+    ucontext_t *uc = puc;
 #endif
 
     pc = PC_sig(uc);
@@ -289,7 +289,7 @@
 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
     ucontext_t *uc = puc;
 #else
-    struct ucontext *uc = puc;
+    ucontext_t *uc = puc;
 #endif
     unsigned long pc;
     int is_write;
@@ -316,7 +316,7 @@
                            void *puc)
 {
     siginfo_t *info = pinfo;
-    struct ucontext *uc = puc;
+    ucontext_t *uc = puc;
     uint32_t *pc = uc->uc_mcontext.sc_pc;
     uint32_t insn = *pc;
     int is_write = 0;
@@ -414,7 +414,7 @@
 #if defined(__NetBSD__)
     ucontext_t *uc = puc;
 #else
-    struct ucontext *uc = puc;
+    ucontext_t *uc = puc;
 #endif
     unsigned long pc;
     int is_write;
@@ -441,7 +441,7 @@
 int cpu_signal_handler(int host_signum, void *pinfo, void *puc)
 {
     siginfo_t *info = pinfo;
-    struct ucontext *uc = puc;
+    ucontext_t *uc = puc;
     uintptr_t pc = uc->uc_mcontext.pc;
     uint32_t insn = *(uint32_t *)pc;
     bool is_write;
@@ -474,7 +474,7 @@
 int cpu_signal_handler(int host_signum, void *pinfo, void *puc)
 {
     siginfo_t *info = pinfo;
-    struct ucontext *uc = puc;
+    ucontext_t *uc = puc;
     unsigned long ip;
     int is_write = 0;
 
@@ -505,7 +505,7 @@
                        void *puc)
 {
     siginfo_t *info = pinfo;
-    struct ucontext *uc = puc;
+    ucontext_t *uc = puc;
     unsigned long pc;
     uint16_t *pinsn;
     int is_write = 0;
@@ -558,7 +558,7 @@
                        void *puc)
 {
     siginfo_t *info = pinfo;
-    struct ucontext *uc = puc;
+    ucontext_t *uc = puc;
     greg_t pc = uc->uc_mcontext.pc;
     int is_write;