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authorFranck Bui-Huu <fbuihuu@gmail.com>2007-02-05 15:24:21 +0100
committerRalf Baechle <ralf@linux-mips.org>2007-02-10 22:38:45 +0000
commitc0b9bae9d18980afa1797fb7b75adb4fbc837b66 (patch)
tree0782ec6c56261422c7186d7cfca68aebfdb36194 /arch/mips
parentc3fc4ab36d495f50ccc89986fe32eeabc2549fa1 (diff)
[MIPS] signal: clean up sigframe structure
This patch makes 'struct sigframe' declaration avalaible for all signals code. It allows signal32 to not have its own declaration. This patch also removes all ICACHE_REFILLS_WORKAROUND_WAR tests in structure declaration and hopefully make them more readable. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/kernel/signal-common.h26
-rw-r--r--arch/mips/kernel/signal.c56
-rw-r--r--arch/mips/kernel/signal32.c49
-rw-r--r--arch/mips/kernel/signal_n32.c19
4 files changed, 81 insertions, 69 deletions
diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index 03d2b603fb8..6700bde0605 100644
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -12,6 +12,32 @@
#define __SIGNAL_COMMON_H
/*
+ * Horribly complicated - with the bloody RM9000 workarounds enabled
+ * the signal trampolines is moving to the end of the structure so we can
+ * increase the alignment without breaking software compatibility.
+ */
+#if ICACHE_REFILLS_WORKAROUND_WAR == 0
+
+struct sigframe {
+ u32 sf_ass[4]; /* argument save space for o32 */
+ u32 sf_code[2]; /* signal trampoline */
+ struct sigcontext sf_sc;
+ sigset_t sf_mask;
+};
+
+#else /* ICACHE_REFILLS_WORKAROUND_WAR */
+
+struct sigframe {
+ u32 sf_ass[4]; /* argument save space for o32 */
+ u32 sf_pad[2];
+ struct sigcontext sf_sc; /* hw context */
+ sigset_t sf_mask;
+ u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */
+};
+
+#endif /* !ICACHE_REFILLS_WORKAROUND_WAR */
+
+/*
* handle hardware context
*/
extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *);
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 7d5a631d6ca..4a707186306 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -38,6 +38,27 @@
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+#if ICACHE_REFILLS_WORKAROUND_WAR == 0
+
+struct rt_sigframe {
+ u32 rs_ass[4]; /* argument save space for o32 */
+ u32 rs_code[2]; /* signal trampoline */
+ struct siginfo rs_info;
+ struct ucontext rs_uc;
+};
+
+#else
+
+struct rt_sigframe {
+ u32 rs_ass[4]; /* argument save space for o32 */
+ u32 rs_pad[2];
+ struct siginfo rs_info;
+ struct ucontext rs_uc;
+ u32 rs_code[8] ____cacheline_aligned; /* signal trampoline */
+};
+
+#endif
+
/*
* Helper routines
*/
@@ -287,41 +308,6 @@ asmlinkage int sys_sigaltstack(nabi_no_regargs struct pt_regs regs)
return do_sigaltstack(uss, uoss, usp);
}
-/*
- * Horribly complicated - with the bloody RM9000 workarounds enabled
- * the signal trampolines is moving to the end of the structure so we can
- * increase the alignment without breaking software compatibility.
- */
-#ifdef CONFIG_TRAD_SIGNALS
-struct sigframe {
- u32 sf_ass[4]; /* argument save space for o32 */
-#if ICACHE_REFILLS_WORKAROUND_WAR
- u32 sf_pad[2];
-#else
- u32 sf_code[2]; /* signal trampoline */
-#endif
- struct sigcontext sf_sc;
- sigset_t sf_mask;
-#if ICACHE_REFILLS_WORKAROUND_WAR
- u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */
-#endif
-};
-#endif
-
-struct rt_sigframe {
- u32 rs_ass[4]; /* argument save space for o32 */
-#if ICACHE_REFILLS_WORKAROUND_WAR
- u32 rs_pad[2];
-#else
- u32 rs_code[2]; /* signal trampoline */
-#endif
- struct siginfo rs_info;
- struct ucontext rs_uc;
-#if ICACHE_REFILLS_WORKAROUND_WAR
- u32 rs_code[8] ____cacheline_aligned; /* signal trampoline */
-#endif
-};
-
#ifdef CONFIG_TRAD_SIGNALS
save_static_function(sys_sigreturn);
__attribute_used__ noinline static void
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index c86a5ddff05..e0a85533182 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -139,6 +139,27 @@ struct ucontext32 {
sigset_t32 uc_sigmask; /* mask last for extensibility */
};
+#if ICACHE_REFILLS_WORKAROUND_WAR == 0
+
+struct rt_sigframe32 {
+ u32 rs_ass[4]; /* argument save space for o32 */
+ u32 rs_code[2]; /* signal trampoline */
+ compat_siginfo_t rs_info;
+ struct ucontext32 rs_uc;
+};
+
+#else /* ICACHE_REFILLS_WORKAROUND_WAR */
+
+struct rt_sigframe32 {
+ u32 rs_ass[4]; /* argument save space for o32 */
+ u32 rs_pad[2];
+ compat_siginfo_t rs_info;
+ struct ucontext32 rs_uc;
+ u32 rs_code[8] __attribute__((aligned(32))); /* signal trampoline */
+};
+
+#endif /* !ICACHE_REFILLS_WORKAROUND_WAR */
+
extern void __put_sigset_unknown_nsig(void);
extern void __get_sigset_unknown_nsig(void);
@@ -383,34 +404,6 @@ static int restore_sigcontext32(struct pt_regs *regs, struct sigcontext32 __user
return err;
}
-struct sigframe {
- u32 sf_ass[4]; /* argument save space for o32 */
-#if ICACHE_REFILLS_WORKAROUND_WAR
- u32 sf_pad[2];
-#else
- u32 sf_code[2]; /* signal trampoline */
-#endif
- struct sigcontext32 sf_sc;
- sigset_t sf_mask;
-#if ICACHE_REFILLS_WORKAROUND_WAR
- u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */
-#endif
-};
-
-struct rt_sigframe32 {
- u32 rs_ass[4]; /* argument save space for o32 */
-#if ICACHE_REFILLS_WORKAROUND_WAR
- u32 rs_pad[2];
-#else
- u32 rs_code[2]; /* signal trampoline */
-#endif
- compat_siginfo_t rs_info;
- struct ucontext32 rs_uc;
-#if ICACHE_REFILLS_WORKAROUND_WAR
- u32 rs_code[8] __attribute__((aligned(32))); /* signal trampoline */
-#endif
-};
-
int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
{
int err;
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index b28646b3cea..192073ee098 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -66,20 +66,27 @@ struct ucontextn32 {
sigset_t uc_sigmask; /* mask last for extensibility */
};
+#if ICACHE_REFILLS_WORKAROUND_WAR == 0
+
struct rt_sigframe_n32 {
u32 rs_ass[4]; /* argument save space for o32 */
-#if ICACHE_REFILLS_WORKAROUND_WAR
- u32 rs_pad[2];
-#else
u32 rs_code[2]; /* signal trampoline */
-#endif
struct siginfo rs_info;
struct ucontextn32 rs_uc;
-#if ICACHE_REFILLS_WORKAROUND_WAR
+};
+
+#else /* ICACHE_REFILLS_WORKAROUND_WAR */
+
+struct rt_sigframe_n32 {
+ u32 rs_ass[4]; /* argument save space for o32 */
+ u32 rs_pad[2];
+ struct siginfo rs_info;
+ struct ucontextn32 rs_uc;
u32 rs_code[8] ____cacheline_aligned; /* signal trampoline */
-#endif
};
+#endif /* !ICACHE_REFILLS_WORKAROUND_WAR */
+
extern void sigset_from_compat (sigset_t *set, compat_sigset_t *compat);
save_static_function(sysn32_rt_sigsuspend);