Merge '[Qemu-devel] [PATCH for-4.1] linux-user: Make sigaltstack stacks per-thread' for go language supportupstream/2.7.0.1tizen_6.0.m2_releasesubmit/tizen_6.0_base_hotfix/20201102.162702submit/tizen_6.0_base_hotfix/20201030.192502submit/tizen_6.0_base/20201029.184802accepted/tizen/6.0/base/20201029.105809tizen_6.0_base_hotfixtizen_6.0_basesandbox/yan11meng/qemu_upgradeaccepted/tizen_base_tool

patch url : https://patchew.org/QEMU/20190725131645.19501-1-peter.maydell@linaro.org/

Change-Id: I591a7d1eab277ecdedbe8a886de4fb553f31a264

5 files changed, 87 insertions, 55 deletions

diff --git a/linux-user/main.c b/linux-user/main.c
index f2f4d2f05..0cfc09bb7 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -3800,6 +3800,11 @@ void stop_all_tasks(void)
 void init_task_state(TaskState *ts)
 {
     ts->used = 1;
+    ts->sigaltstack_used = (struct target_sigaltstack) {
+        .ss_sp = 0,
+        .ss_size = 0,
+        .ss_flags = TARGET_SS_DISABLE,
+    };
 }
 
 CPUArchState *cpu_copy(CPUArchState *env)
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index dab3b6a2b..fc6633af0 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -17,6 +17,7 @@
 #include "target_syscall.h"
 #include "exec/gdbstub.h"
 #include "qemu/queue.h"
+#include "target_signal.h"
 
 #define THREAD __thread
 
@@ -29,6 +30,7 @@
  * Basically, it replicates in user space what would be certain
  * task_struct fields in the kernel
  */
+
 struct image_info {
         abi_ulong       load_bias;
         abi_ulong       load_addr;
@@ -147,6 +149,8 @@ typedef struct TaskState {
      */
     int signal_pending;
 
+    /* This thread's sigaltstack, if it has one */
+    struct target_sigaltstack sigaltstack_used;
 } __attribute__((aligned(16))) TaskState;
 
 extern char *exec_path;
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 2a070431b..696917790 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -26,12 +26,6 @@
 #include "target_signal.h"
 #include "trace.h"
 
-static struct target_sigaltstack target_sigaltstack_used = {
-    .ss_sp = 0,
-    .ss_size = 0,
-    .ss_flags = TARGET_SS_DISABLE,
-};
-
 static struct target_sigaction sigact_table[TARGET_NSIG];
 
 static void host_signal_handler(int host_signum, siginfo_t *info,
@@ -84,13 +78,15 @@ static uint8_t target_to_host_signal_table[_NSIG];
 
 static inline int on_sig_stack(unsigned long sp)
 {
-    return (sp - target_sigaltstack_used.ss_sp
-            < target_sigaltstack_used.ss_size);
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
+    return (sp - ts->sigaltstack_used.ss_sp
+            < ts->sigaltstack_used.ss_size);
 }
 
 static inline int sas_ss_flags(unsigned long sp)
 {
-    return (target_sigaltstack_used.ss_size == 0 ? SS_DISABLE
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
+    return (ts->sigaltstack_used.ss_size == 0 ? SS_DISABLE
             : on_sig_stack(sp) ? SS_ONSTACK : 0);
 }
 
@@ -665,12 +661,13 @@ abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp)
 {
     int ret;
     struct target_sigaltstack oss;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     /* XXX: test errors */
     if(uoss_addr)
     {
-        __put_user(target_sigaltstack_used.ss_sp, &oss.ss_sp);
-        __put_user(target_sigaltstack_used.ss_size, &oss.ss_size);
+        __put_user(ts->sigaltstack_used.ss_sp, &oss.ss_sp);
+        __put_user(ts->sigaltstack_used.ss_size, &oss.ss_size);
         __put_user(sas_ss_flags(sp), &oss.ss_flags);
     }
 
@@ -717,8 +714,8 @@ abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp)
             }
 	}
 
-        target_sigaltstack_used.ss_sp = ss.ss_sp;
-        target_sigaltstack_used.ss_size = ss.ss_size;
+        ts->sigaltstack_used.ss_sp = ss.ss_sp;
+        ts->sigaltstack_used.ss_size = ss.ss_size;
     }
 
     if (uoss_addr) {
@@ -945,13 +942,14 @@ static inline abi_ulong
 get_sigframe(struct target_sigaction *ka, CPUX86State *env, size_t frame_size)
 {
     unsigned long esp;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     /* Default to using normal stack */
     esp = env->regs[R_ESP];
     /* This is the X/Open sanctioned signal stack switching.  */
     if (ka->sa_flags & TARGET_SA_ONSTACK) {
         if (sas_ss_flags(esp) == 0) {
-            esp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+            esp = ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size;
         }
     } else {
 
@@ -1035,6 +1033,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     abi_ulong frame_addr, addr;
     struct rt_sigframe *frame;
     int i;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     frame_addr = get_sigframe(ka, env, sizeof(*frame));
     trace_user_setup_rt_frame(env, frame_addr);
@@ -1052,10 +1051,10 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     /* Create the ucontext.  */
     __put_user(0, &frame->uc.tuc_flags);
     __put_user(0, &frame->uc.tuc_link);
-    __put_user(target_sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp);
+    __put_user(ts->sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp);
     __put_user(sas_ss_flags(get_sp_from_cpustate(env)),
                &frame->uc.tuc_stack.ss_flags);
-    __put_user(target_sigaltstack_used.ss_size,
+    __put_user(ts->sigaltstack_used.ss_size,
                &frame->uc.tuc_stack.ss_size);
     setup_sigcontext(&frame->uc.tuc_mcontext, &frame->fpstate, env,
             set->sig[0], frame_addr + offsetof(struct rt_sigframe, fpstate));
@@ -1366,12 +1365,13 @@ static abi_ulong get_sigframe(struct target_sigaction *ka, CPUARMState *env)
     abi_ulong sp;
 
     sp = env->xregs[31];
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     /*
      * This is the X/Open sanctioned signal stack switching.
      */
     if ((ka->sa_flags & TARGET_SA_ONSTACK) && !sas_ss_flags(sp)) {
-        sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+        sp = ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size;
     }
 
     sp = (sp - sizeof(struct target_rt_sigframe)) & ~15;
@@ -1385,6 +1385,7 @@ static void target_setup_frame(int usig, struct target_sigaction *ka,
 {
     struct target_rt_sigframe *frame;
     abi_ulong frame_addr, return_addr;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     frame_addr = get_sigframe(ka, env);
     trace_user_setup_frame(env, frame_addr);
@@ -1395,11 +1396,11 @@ static void target_setup_frame(int usig, struct target_sigaction *ka,
     __put_user(0, &frame->uc.tuc_flags);
     __put_user(0, &frame->uc.tuc_link);
 
-    __put_user(target_sigaltstack_used.ss_sp,
+    __put_user(ts->sigaltstack_used.ss_sp,
                       &frame->uc.tuc_stack.ss_sp);
     __put_user(sas_ss_flags(env->xregs[31]),
                       &frame->uc.tuc_stack.ss_flags);
-    __put_user(target_sigaltstack_used.ss_size,
+    __put_user(ts->sigaltstack_used.ss_size,
                       &frame->uc.tuc_stack.ss_size);
     target_setup_sigframe(frame, env, set);
     if (ka->sa_flags & TARGET_SA_RESTORER) {
@@ -1647,12 +1648,13 @@ static inline abi_ulong
 get_sigframe(struct target_sigaction *ka, CPUARMState *regs, int framesize)
 {
     unsigned long sp = regs->regs[13];
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     /*
      * This is the X/Open sanctioned signal stack switching.
      */
     if ((ka->sa_flags & TARGET_SA_ONSTACK) && !sas_ss_flags(sp)) {
-        sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+        sp = ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size;
     }
     /*
      * ATPCS B01 mandates 8-byte alignment
@@ -1740,13 +1742,14 @@ static void setup_sigframe_v2(struct target_ucontext_v2 *uc,
     struct target_sigaltstack stack;
     int i;
     abi_ulong *regspace;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     /* Clear all the bits of the ucontext we don't use.  */
     memset(uc, 0, offsetof(struct target_ucontext_v2, tuc_mcontext));
 
     memset(&stack, 0, sizeof(stack));
-    __put_user(target_sigaltstack_used.ss_sp, &stack.ss_sp);
-    __put_user(target_sigaltstack_used.ss_size, &stack.ss_size);
+    __put_user(ts->sigaltstack_used.ss_sp, &stack.ss_sp);
+    __put_user(ts->sigaltstack_used.ss_size, &stack.ss_size);
     __put_user(sas_ss_flags(get_sp_from_cpustate(env)), &stack.ss_flags);
     memcpy(&uc->tuc_stack, &stack, sizeof(stack));
 
@@ -1832,6 +1835,7 @@ static void setup_rt_frame_v1(int usig, struct target_sigaction *ka,
     struct target_sigaltstack stack;
     int i;
     abi_ulong info_addr, uc_addr;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     trace_user_setup_rt_frame(env, frame_addr);
     if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) {
@@ -1848,8 +1852,8 @@ static void setup_rt_frame_v1(int usig, struct target_sigaction *ka,
     memset(&frame->uc, 0, offsetof(struct target_ucontext_v1, tuc_mcontext));
 
     memset(&stack, 0, sizeof(stack));
-    __put_user(target_sigaltstack_used.ss_sp, &stack.ss_sp);
-    __put_user(target_sigaltstack_used.ss_size, &stack.ss_size);
+    __put_user(ts->sigaltstack_used.ss_sp, &stack.ss_sp);
+    __put_user(ts->sigaltstack_used.ss_size, &stack.ss_size);
     __put_user(sas_ss_flags(get_sp_from_cpustate(env)), &stack.ss_flags);
     memcpy(&frame->uc.tuc_stack, &stack, sizeof(stack));
 
@@ -2313,14 +2317,15 @@ static inline abi_ulong get_sigframe(struct target_sigaction *sa,
                                      unsigned long framesize)
 {
     abi_ulong sp;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     sp = env->regwptr[UREG_FP];
 
     /* This is the X/Open sanctioned signal stack switching.  */
     if (sa->sa_flags & TARGET_SA_ONSTACK) {
         if (!on_sig_stack(sp)
-                && !((target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size) & 7)) {
-            sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+                && !((ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size) & 7)) {
+            sp = ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size;
         }
     }
     return sp - framesize;
@@ -2968,6 +2973,7 @@ static inline abi_ulong
 get_sigframe(struct target_sigaction *ka, CPUMIPSState *regs, size_t frame_size)
 {
     unsigned long sp;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     /* Default to using normal stack */
     sp = regs->active_tc.gpr[29];
@@ -2981,7 +2987,7 @@ get_sigframe(struct target_sigaction *ka, CPUMIPSState *regs, size_t frame_size)
 
     /* This is the X/Open sanctioned signal stack switching.  */
     if ((ka->sa_flags & TARGET_SA_ONSTACK) && (sas_ss_flags (sp) == 0)) {
-        sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+        sp = ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size;
     }
 
     return (sp - frame_size) & ~7;
@@ -3100,6 +3106,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     struct target_rt_sigframe *frame;
     abi_ulong frame_addr;
     int i;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     frame_addr = get_sigframe(ka, env, sizeof(*frame));
     trace_user_setup_rt_frame(env, frame_addr);
@@ -3113,8 +3120,8 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
 
     __put_user(0, &frame->rs_uc.tuc_flags);
     __put_user(0, &frame->rs_uc.tuc_link);
-    __put_user(target_sigaltstack_used.ss_sp, &frame->rs_uc.tuc_stack.ss_sp);
-    __put_user(target_sigaltstack_used.ss_size, &frame->rs_uc.tuc_stack.ss_size);
+    __put_user(ts->sigaltstack_used.ss_sp, &frame->rs_uc.tuc_stack.ss_sp);
+    __put_user(ts->sigaltstack_used.ss_size, &frame->rs_uc.tuc_stack.ss_size);
     __put_user(sas_ss_flags(get_sp_from_cpustate(env)),
                &frame->rs_uc.tuc_stack.ss_flags);
 
@@ -3247,8 +3254,10 @@ struct target_rt_sigframe
 static abi_ulong get_sigframe(struct target_sigaction *ka,
                               unsigned long sp, size_t frame_size)
 {
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
+
     if ((ka->sa_flags & TARGET_SA_ONSTACK) && (sas_ss_flags(sp) == 0)) {
-        sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+        sp = ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size;
     }
 
     return (sp - frame_size) & -8ul;
@@ -3365,6 +3374,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     struct target_rt_sigframe *frame;
     abi_ulong frame_addr;
     int i;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     frame_addr = get_sigframe(ka, regs->gregs[15], sizeof(*frame));
     trace_user_setup_rt_frame(regs, frame_addr);
@@ -3377,11 +3387,11 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     /* Create the ucontext.  */
     __put_user(0, &frame->uc.tuc_flags);
     __put_user(0, (unsigned long *)&frame->uc.tuc_link);
-    __put_user((unsigned long)target_sigaltstack_used.ss_sp,
+    __put_user((unsigned long)ts->sigaltstack_used.ss_sp,
                &frame->uc.tuc_stack.ss_sp);
     __put_user(sas_ss_flags(regs->gregs[15]),
                &frame->uc.tuc_stack.ss_flags);
-    __put_user(target_sigaltstack_used.ss_size,
+    __put_user(ts->sigaltstack_used.ss_size,
                &frame->uc.tuc_stack.ss_size);
     setup_sigcontext(&frame->uc.tuc_mcontext,
                      regs, set->sig[0]);
@@ -3598,9 +3608,10 @@ static abi_ulong get_sigframe(struct target_sigaction *ka,
                               CPUMBState *env, int frame_size)
 {
     abi_ulong sp = env->regs[1];
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     if ((ka->sa_flags & TARGET_SA_ONSTACK) != 0 && !on_sig_stack(sp)) {
-        sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+        sp = ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size;
     }
 
     return ((sp - frame_size) & -8UL);
@@ -3985,11 +3996,12 @@ static inline abi_ulong get_sigframe(struct target_sigaction *ka,
 {
     unsigned long sp = regs->gpr[1];
     int onsigstack = on_sig_stack(sp);
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     /* redzone */
     /* This is the X/Open sanctioned signal stack switching.  */
     if ((ka->sa_flags & TARGET_SA_ONSTACK) != 0 && !onsigstack) {
-        sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+        sp = ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size;
     }
 
     sp = align_sigframe(sp - frame_size);
@@ -4015,6 +4027,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     unsigned long return_ip;
     struct target_rt_sigframe *frame;
     abi_ulong info_addr, uc_addr;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     frame_addr = get_sigframe(ka, env, sizeof(*frame));
     trace_user_setup_rt_frame(env, frame_addr);
@@ -4034,10 +4047,10 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     /*err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext));*/
     __put_user(0, &frame->uc.tuc_flags);
     __put_user(0, &frame->uc.tuc_link);
-    __put_user(target_sigaltstack_used.ss_sp,
+    __put_user(ts->sigaltstack_used.ss_sp,
                &frame->uc.tuc_stack.ss_sp);
     __put_user(sas_ss_flags(env->gpr[1]), &frame->uc.tuc_stack.ss_flags);
-    __put_user(target_sigaltstack_used.ss_size,
+    __put_user(ts->sigaltstack_used.ss_size,
                &frame->uc.tuc_stack.ss_size);
     setup_sigcontext(&frame->sc, env, set->sig[0]);
 
@@ -4156,6 +4169,7 @@ static inline abi_ulong
 get_sigframe(struct target_sigaction *ka, CPUS390XState *env, size_t frame_size)
 {
     abi_ulong sp;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     /* Default to using normal stack */
     sp = env->regs[15];
@@ -4163,8 +4177,8 @@ get_sigframe(struct target_sigaction *ka, CPUS390XState *env, size_t frame_size)
     /* This is the X/Open sanctioned signal stack switching.  */
     if (ka->sa_flags & TARGET_SA_ONSTACK) {
         if (!sas_ss_flags(sp)) {
-            sp = target_sigaltstack_used.ss_sp +
-                 target_sigaltstack_used.ss_size;
+            sp = ts->sigaltstack_used.ss_sp +
+                 ts->sigaltstack_used.ss_size;
         }
     }
 
@@ -4265,6 +4279,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     int i;
     rt_sigframe *frame;
     abi_ulong frame_addr;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     frame_addr = get_sigframe(ka, env, sizeof *frame);
     trace_user_setup_rt_frame(env, frame_addr);
@@ -4277,10 +4292,10 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     /* Create the ucontext.  */
     __put_user(0, &frame->uc.tuc_flags);
     __put_user((abi_ulong)0, (abi_ulong *)&frame->uc.tuc_link);
-    __put_user(target_sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp);
+    __put_user(ts->sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp);
     __put_user(sas_ss_flags(get_sp_from_cpustate(env)),
                &frame->uc.tuc_stack.ss_flags);
-    __put_user(target_sigaltstack_used.ss_size, &frame->uc.tuc_stack.ss_size);
+    __put_user(ts->sigaltstack_used.ss_size, &frame->uc.tuc_stack.ss_size);
     save_sigregs(env, &frame->uc.tuc_mcontext);
     for (i = 0; i < TARGET_NSIG_WORDS; i++) {
         __put_user((abi_ulong)set->sig[i],
@@ -4574,13 +4589,14 @@ static target_ulong get_sigframe(struct target_sigaction *ka,
                                  int frame_size)
 {
     target_ulong oldsp;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     oldsp = env->gpr[1];
 
     if ((ka->sa_flags & TARGET_SA_ONSTACK) &&
             (sas_ss_flags(oldsp) == 0)) {
-        oldsp = (target_sigaltstack_used.ss_sp
-                 + target_sigaltstack_used.ss_size);
+        oldsp = (ts->sigaltstack_used.ss_sp
+                 + ts->sigaltstack_used.ss_size);
     }
 
     return (oldsp - frame_size) & ~0xFUL;
@@ -4836,6 +4852,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
 #if defined(TARGET_PPC64)
     struct image_info *image = ((TaskState *)thread_cpu->opaque)->info;
 #endif
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     rt_sf_addr = get_sigframe(ka, env, sizeof(*rt_sf));
     if (!lock_user_struct(VERIFY_WRITE, rt_sf, rt_sf_addr, 1))
@@ -4845,11 +4862,11 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
 
     __put_user(0, &rt_sf->uc.tuc_flags);
     __put_user(0, &rt_sf->uc.tuc_link);
-    __put_user((target_ulong)target_sigaltstack_used.ss_sp,
+    __put_user((target_ulong)ts->sigaltstack_used.ss_sp,
                &rt_sf->uc.tuc_stack.ss_sp);
     __put_user(sas_ss_flags(env->gpr[1]),
                &rt_sf->uc.tuc_stack.ss_flags);
-    __put_user(target_sigaltstack_used.ss_size,
+    __put_user(ts->sigaltstack_used.ss_size,
                &rt_sf->uc.tuc_stack.ss_size);
 #if !defined(TARGET_PPC64)
     __put_user(h2g (&rt_sf->uc.tuc_mcontext),
@@ -5109,12 +5126,13 @@ get_sigframe(struct target_sigaction *ka, CPUM68KState *regs,
              size_t frame_size)
 {
     unsigned long sp;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     sp = regs->aregs[7];
 
     /* This is the X/Open sanctioned signal stack switching.  */
     if ((ka->sa_flags & TARGET_SA_ONSTACK) && (sas_ss_flags (sp) == 0)) {
-        sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+        sp = ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size;
     }
 
     return ((sp - frame_size) & -8UL);
@@ -5244,6 +5262,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     abi_ulong uc_addr;
     int err = 0;
     int i;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     frame_addr = get_sigframe(ka, env, sizeof *frame);
     trace_user_setup_rt_frame(env, frame_addr);
@@ -5265,11 +5284,11 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
 
     __put_user(0, &frame->uc.tuc_flags);
     __put_user(0, &frame->uc.tuc_link);
-    __put_user(target_sigaltstack_used.ss_sp,
+    __put_user(ts->sigaltstack_used.ss_sp,
                &frame->uc.tuc_stack.ss_sp);
     __put_user(sas_ss_flags(env->aregs[7]),
             &frame->uc.tuc_stack.ss_flags);
-    __put_user(target_sigaltstack_used.ss_size,
+    __put_user(ts->sigaltstack_used.ss_size,
                &frame->uc.tuc_stack.ss_size);
     err |= target_rt_setup_ucontext(&frame->uc, env);
 
@@ -5473,10 +5492,11 @@ static inline abi_ulong get_sigframe(struct target_sigaction *sa,
                                      unsigned long framesize)
 {
     abi_ulong sp = env->ir[IR_SP];
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     /* This is the X/Open sanctioned signal stack switching.  */
     if ((sa->sa_flags & TARGET_SA_ONSTACK) != 0 && !sas_ss_flags(sp)) {
-        sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+        sp = ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size;
     }
     return (sp - framesize) & -32;
 }
@@ -5532,6 +5552,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     abi_ulong frame_addr, r26;
     struct target_rt_sigframe *frame;
     int i, err = 0;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     frame_addr = get_sigframe(ka, env, sizeof(*frame));
     trace_user_setup_rt_frame(env, frame_addr);
@@ -5544,11 +5565,11 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     __put_user(0, &frame->uc.tuc_flags);
     __put_user(0, &frame->uc.tuc_link);
     __put_user(set->sig[0], &frame->uc.tuc_osf_sigmask);
-    __put_user(target_sigaltstack_used.ss_sp,
+    __put_user(ts->sigaltstack_used.ss_sp,
                &frame->uc.tuc_stack.ss_sp);
     __put_user(sas_ss_flags(env->ir[IR_SP]),
                &frame->uc.tuc_stack.ss_flags);
-    __put_user(target_sigaltstack_used.ss_size,
+    __put_user(ts->sigaltstack_used.ss_size,
                &frame->uc.tuc_stack.ss_size);
     setup_sigcontext(&frame->uc.tuc_mcontext, env, frame_addr, set);
     for (i = 0; i < TARGET_NSIG_WORDS; ++i) {
@@ -5703,13 +5724,14 @@ static abi_ulong get_sigframe(struct target_sigaction *ka, CPUArchState *env,
                               size_t frame_size)
 {
     unsigned long sp = env->regs[TILEGX_R_SP];
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size))) {
         return -1UL;
     }
 
     if ((ka->sa_flags & SA_ONSTACK) && !sas_ss_flags(sp)) {
-        sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
+        sp = ts->sigaltstack_used.ss_sp + ts->sigaltstack_used.ss_size;
     }
 
     sp -= frame_size;
@@ -5724,6 +5746,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     abi_ulong frame_addr;
     struct target_rt_sigframe *frame;
     unsigned long restorer;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
 
     frame_addr = get_sigframe(ka, env, sizeof(*frame));
     trace_user_setup_rt_frame(env, frame_addr);
@@ -5743,10 +5766,10 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     /* Create the ucontext.  */
     __put_user(0, &frame->uc.tuc_flags);
     __put_user(0, &frame->uc.tuc_link);
-    __put_user(target_sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp);
+    __put_user(ts->sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp);
     __put_user(sas_ss_flags(env->regs[TILEGX_R_SP]),
                &frame->uc.tuc_stack.ss_flags);
-    __put_user(target_sigaltstack_used.ss_size, &frame->uc.tuc_stack.ss_size);
+    __put_user(ts->sigaltstack_used.ss_size, &frame->uc.tuc_stack.ss_size);
     setup_sigcontext(&frame->uc.tuc_mcontext, env, info->si_signo);
 
     if (ka->sa_flags & TARGET_SA_RESTORER) {
diff --git a/packaging/qemu-linux-user.spec b/packaging/qemu-linux-user.spec
index 1f5a1ec7a..be9354749 100644
--- a/packaging/qemu-linux-user.spec
+++ b/packaging/qemu-linux-user.spec
@@ -21,7 +21,7 @@ Url:            http://www.qemu.org/
 Summary:        Universal CPU emulator
 License:        BSD-3-Clause and GPL-2.0 and GPL-2.0+ and LGPL-2.1+ and MIT
 Group:          System/Emulators/PC
-Version:        2.7.0
+Version:        2.7.0.1
 Release:        0
 Source:         http://wiki.qemu.org/download/qemu-2.7.0.tar.bz2
 Source300:      qemu-rpmlintrc
diff --git a/packaging/qemu.spec b/packaging/qemu.spec
index f2c8d36c5..f4240c7f1 100644
--- a/packaging/qemu.spec
+++ b/packaging/qemu.spec
@@ -67,7 +67,7 @@ Url:            http://www.qemu.org/
 Summary:        Universal CPU emulator
 License:        BSD-3-Clause and GPL-2.0 and GPL-2.0+ and LGPL-2.1+ and MIT
 Group:          System/Emulators/PC
-Version:        2.7.0
+Version:        2.7.0.1
 Release:        0
 Source:         http://wiki.qemu.org/download/qemu-2.7.0.tar.bz2
 Source99:       http://wiki.qemu.org/download/qemu-2.7.0.tar.bz2.sig