7 files changed, 39 insertions, 1 deletions
diff --git a/linux-user/alpha/target_signal.h b/linux-user/alpha/target_signal.h
index bf54ac7..7618c3e 100644
--- a/linux-user/alpha/target_signal.h
+++ b/linux-user/alpha/target_signal.h
@@ -21,4 +21,9 @@ typedef struct target_sigaltstack {
 #define TARGET_MINSIGSTKSZ	4096
 #define TARGET_SIGSTKSZ		16384
 
+static inline target_ulong get_sp_from_cpustate(CPUAlphaState *state)
+{
+    return state->ir[IR_SP];
+}
+
 #endif /* TARGET_SIGNAL_H */
diff --git a/linux-user/arm/target_signal.h b/linux-user/arm/target_signal.h
index eb4a0bb..d518165 100644
--- a/linux-user/arm/target_signal.h
+++ b/linux-user/arm/target_signal.h
@@ -21,4 +21,9 @@ typedef struct target_sigaltstack {
 #define TARGET_MINSIGSTKSZ	2048
 #define TARGET_SIGSTKSZ		8192
 
+static inline target_ulong get_sp_from_cpustate(CPUARMState *state)
+{
+   return state->regs[13];
+}
+
 #endif /* TARGET_SIGNAL_H */
diff --git a/linux-user/i386/target_signal.h b/linux-user/i386/target_signal.h
index eb4a0bb..f93a8d6 100644
--- a/linux-user/i386/target_signal.h
+++ b/linux-user/i386/target_signal.h
@@ -21,4 +21,9 @@ typedef struct target_sigaltstack {
 #define TARGET_MINSIGSTKSZ	2048
 #define TARGET_SIGSTKSZ		8192
 
+static inline target_ulong get_sp_from_cpustate(CPUX86State *state)
+{
+    return state->regs[R_ESP];
+}
+
 #endif /* TARGET_SIGNAL_H */
diff --git a/linux-user/mips/target_signal.h b/linux-user/mips/target_signal.h
index c947884..d7611b0 100644
--- a/linux-user/mips/target_signal.h
+++ b/linux-user/mips/target_signal.h
@@ -21,4 +21,9 @@ typedef struct target_sigaltstack {
 #define TARGET_MINSIGSTKSZ    2048
 #define TARGET_SIGSTKSZ       8192
 
+static inline target_ulong get_sp_from_cpustate(CPUMIPSState *state)
+{
+    return state->gpr[29][state->current_tc];
+}
+
 #endif /* TARGET_SIGNAL_H */
diff --git a/linux-user/ppc/target_signal.h b/linux-user/ppc/target_signal.h
index e210e7a..80ad211 100644
--- a/linux-user/ppc/target_signal.h
+++ b/linux-user/ppc/target_signal.h
@@ -21,4 +21,9 @@ typedef struct target_sigaltstack {
 #define TARGET_MINSIGSTKSZ    2048
 #define TARGET_SIGSTKSZ       8192
 
+static inline target_ulong get_sp_from_cpustate(CPUPPCState *state)
+{
+    return state->gpr[1];
+}
+
 #endif /* TARGET_SIGNAL_H */
diff --git a/linux-user/sparc/target_signal.h b/linux-user/sparc/target_signal.h
index bf54ac7..dfca129 100644
--- a/linux-user/sparc/target_signal.h
+++ b/linux-user/sparc/target_signal.h
@@ -21,4 +21,16 @@ typedef struct target_sigaltstack {
 #define TARGET_MINSIGSTKSZ	4096
 #define TARGET_SIGSTKSZ		16384
 
+#ifndef UREG_I6
+#define UREG_I6        6
+#endif
+#ifndef UREG_FP
+#define UREG_FP        UREG_I6
+#endif
+
+static inline target_ulong get_sp_from_cpustate(CPUSPARCState *state)
+{
+    return state->regwptr[UREG_FP];
+}
+
 #endif /* TARGET_SIGNAL_H */
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 5f1c804..af5b9d9 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -4318,7 +4318,8 @@ target_long do_syscall(void *cpu_env, int num, target_long arg1,
     case TARGET_NR_capset:
         goto unimplemented;
     case TARGET_NR_sigaltstack:
-#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC)
+#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
+    defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA)
         ret = do_sigaltstack((struct target_sigaltstack *)arg1,
                              (struct target_sigaltstack *)arg2,
                              get_sp_from_cpustate((CPUState *)cpu_env));