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-rw-r--r--arch/microblaze/kernel/entry.S37
1 files changed, 17 insertions, 20 deletions
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index 66e34a3..03f7b8c 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -430,13 +430,12 @@ C_ENTRY(ret_from_trap):
5: /* get thread info from current task*/
lwi r11, CURRENT_TASK, TS_THREAD_INFO;
lwi r11, r11, TI_FLAGS; /* get flags in thread info */
- andi r11, r11, _TIF_SIGPENDING;
+ andi r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
beqi r11, 1f; /* Signals to handle, handle them */
addik r5, r1, 0; /* Arg 1: struct pt_regs *regs */
- addi r7, r0, 1; /* Arg 3: int in_syscall */
- bralid r15, do_signal; /* Handle any signals */
- add r6, r0, r0; /* Arg 2: sigset_t *oldset */
+ bralid r15, do_notify_resume; /* Handle any signals */
+ addi r6, r0, 1; /* Arg 2: int in_syscall */
/* Finally, return to user state. */
1: set_bip; /* Ints masked for state restore */
@@ -493,10 +492,11 @@ C_ENTRY(sys_clone):
bnei r6, 1f; /* See if child SP arg (arg 1) is 0. */
lwi r6, r1, PT_R1; /* If so, use paret's stack ptr */
1: addik r7, r1, 0; /* Arg 2: parent context */
- add r8, r0, r0; /* Arg 3: (unused) */
- add r9, r0, r0; /* Arg 4: (unused) */
+ lwi r9, r1, PT_R8; /* parent tid. */
+ lwi r10, r1, PT_R9; /* child tid. */
+ /* do_fork will pick up TLS from regs->r10. */
brid do_fork /* Do real work (tail-call) */
- add r10, r0, r0; /* Arg 5: (unused) */
+ add r8, r0, r0; /* Arg 3: (unused) */
C_ENTRY(sys_execve):
brid microblaze_execve; /* Do real work (tail-call).*/
@@ -622,7 +622,7 @@ C_ENTRY(ret_from_exc):
/* Maybe handle a signal */
5: lwi r11, CURRENT_TASK, TS_THREAD_INFO; /* get thread info */
lwi r11, r11, TI_FLAGS; /* get flags in thread info */
- andi r11, r11, _TIF_SIGPENDING;
+ andi r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
beqi r11, 1f; /* Signals to handle, handle them */
/*
@@ -635,11 +635,10 @@ C_ENTRY(ret_from_exc):
* traps), but signal handlers may want to examine or change the
* complete register state. Here we save anything not saved by
* the normal entry sequence, so that it may be safely restored
- * (in a possibly modified form) after do_signal returns. */
+ * (in a possibly modified form) after do_notify_resume returns. */
addik r5, r1, 0; /* Arg 1: struct pt_regs *regs */
- addi r7, r0, 0; /* Arg 3: int in_syscall */
- bralid r15, do_signal; /* Handle any signals */
- add r6, r0, r0; /* Arg 2: sigset_t *oldset */
+ bralid r15, do_notify_resume; /* Handle any signals */
+ addi r6, r0, 0; /* Arg 2: int in_syscall */
/* Finally, return to user state. */
1: set_bip; /* Ints masked for state restore */
@@ -732,13 +731,12 @@ ret_from_irq:
/* Maybe handle a signal */
5: lwi r11, CURRENT_TASK, TS_THREAD_INFO; /* MS: get thread info */
lwi r11, r11, TI_FLAGS; /* get flags in thread info */
- andi r11, r11, _TIF_SIGPENDING;
+ andi r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
beqid r11, no_intr_resched
/* Handle a signal return; Pending signals should be in r18. */
- addi r7, r0, 0; /* Arg 3: int in_syscall */
addik r5, r1, 0; /* Arg 1: struct pt_regs *regs */
- bralid r15, do_signal; /* Handle any signals */
- add r6, r0, r0; /* Arg 2: sigset_t *oldset */
+ bralid r15, do_notify_resume; /* Handle any signals */
+ addi r6, r0, 0; /* Arg 2: int in_syscall */
/* Finally, return to user state. */
no_intr_resched:
@@ -869,13 +867,12 @@ dbtrap_call: /* Return point for kernel/user entry + 8 because of rtsd r15, 8 */
/* Maybe handle a signal */
5: lwi r11, CURRENT_TASK, TS_THREAD_INFO; /* get thread info */
lwi r11, r11, TI_FLAGS; /* get flags in thread info */
- andi r11, r11, _TIF_SIGPENDING;
+ andi r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
beqi r11, 1f; /* Signals to handle, handle them */
addik r5, r1, 0; /* Arg 1: struct pt_regs *regs */
- addi r7, r0, 0; /* Arg 3: int in_syscall */
- bralid r15, do_signal; /* Handle any signals */
- add r6, r0, r0; /* Arg 2: sigset_t *oldset */
+ bralid r15, do_notify_resume; /* Handle any signals */
+ addi r6, r0, 0; /* Arg 2: int in_syscall */
/* Finally, return to user state. */
1: swi CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */