mmc_test: initialize mmc_test_lock statically

[linux-2.6-omap-h63xx.git] / arch / sparc64 / kernel / ptrace.c

diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index e9fc0aa2da386e8161a7a4badedb8f77b8ce7789..bd578cc4856d6de60ed4e3ba54cec2874b32480c 100644 (file)
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -23,6 +23,7 @@
 #include <linux/audit.h>
 #include <linux/signal.h>
 #include <linux/regset.h>
+#include <linux/tracehook.h>
 #include <linux/compat.h>
 #include <linux/elf.h>
 
@@ -287,11 +288,11 @@ static int genregs64_set(struct task_struct *target,
                                         32 * sizeof(u64),
                                         33 * sizeof(u64));
                if (!ret) {
-                       /* Only the condition codes can be modified
-                        * in the %tstate register.
+                       /* Only the condition codes and the "in syscall"
+                        * state can be modified in the %tstate register.
                         */
-                       tstate &= (TSTATE_ICC | TSTATE_XCC);
-                       regs->tstate &= ~(TSTATE_ICC | TSTATE_XCC);
+                       tstate &= (TSTATE_ICC | TSTATE_XCC | TSTATE_SYSCALL);
+                       regs->tstate &= ~(TSTATE_ICC | TSTATE_XCC | TSTATE_SYSCALL);
                        regs->tstate |= tstate;
                }
        }
@@ -657,8 +658,10 @@ static int genregs32_set(struct task_struct *target,
                switch (pos) {
                case 32: /* PSR */
                        tstate = regs->tstate;
-                       tstate &= ~(TSTATE_ICC | TSTATE_XCC);
+                       tstate &= ~(TSTATE_ICC | TSTATE_XCC | TSTATE_SYSCALL);
                        tstate |= psr_to_tstate_icc(reg);
+                       if (reg & PSR_SYSCALL)
+                               tstate |= TSTATE_SYSCALL;
                        regs->tstate = tstate;
                        break;
                case 33: /* PC */
@@ -944,6 +947,8 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
                break;
 
        default:
+               if (request == PTRACE_SPARC_DETACH)
+                       request = PTRACE_DETACH;
                ret = compat_ptrace_request(child, request, addr, data);
                break;
        }
@@ -1036,6 +1041,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                break;
 
        default:
+               if (request == PTRACE_SPARC_DETACH)
+                       request = PTRACE_DETACH;
                ret = ptrace_request(child, request, addr, data);
                break;
        }
@@ -1043,8 +1050,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
        return ret;
 }
 
-asmlinkage void syscall_trace(struct pt_regs *regs, int syscall_exit_p)
+asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p)
 {
+       int ret = 0;
+
        /* do the secure computing check first */
        secure_computing(regs->u_regs[UREG_G1]);
 
@@ -1058,27 +1067,14 @@ asmlinkage void syscall_trace(struct pt_regs *regs, int syscall_exit_p)
                audit_syscall_exit(result, regs->u_regs[UREG_I0]);
        }
 
-       if (!(current->ptrace & PT_PTRACED))
-               goto out;
-
-       if (!test_thread_flag(TIF_SYSCALL_TRACE))
-               goto out;
-
-       ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-                                ? 0x80 : 0));
-
-       /*
-        * this isn't the same as continuing with a signal, but it will do
-        * for normal use.  strace only continues with a signal if the
-        * stopping signal is not SIGTRAP.  -brl
-        */
-       if (current->exit_code) {
-               send_sig(current->exit_code, current, 1);
-               current->exit_code = 0;
+       if (test_thread_flag(TIF_SYSCALL_TRACE)) {
+               if (syscall_exit_p)
+                       tracehook_report_syscall_exit(regs, 0);
+               else
+                       ret = tracehook_report_syscall_entry(regs);
        }
 
-out:
-       if (unlikely(current->audit_context) && !syscall_exit_p)
+       if (unlikely(current->audit_context) && !syscall_exit_p && !ret)
                audit_syscall_entry((test_thread_flag(TIF_32BIT) ?
                                     AUDIT_ARCH_SPARC :
                                     AUDIT_ARCH_SPARC64),
@@ -1087,4 +1083,6 @@ out:
                                    regs->u_regs[UREG_I1],
                                    regs->u_regs[UREG_I2],
                                    regs->u_regs[UREG_I3]);
+
+       return ret;
 }