diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-18 12:50:10 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-19 18:07:39 -0500 |
| commit | 1ca97bb541a1f5a735e697a8bba763cde3aab452 (patch) | |
| tree | 548d835c0f13de780678922ba3b3ea4c841e8cd7 /arch/m68k | |
| parent | 5208ba24e7826519d310474dedaed2f84b0ab6a0 (diff) | |
new helper: current_user_stack_pointer()
Cross-architecture equivalent of rdusp(); default is
user_stack_pointer(current_pt_regs()) - that works for almost all
platforms that have usp saved in pt_regs. The only exception from
that is ia64 - we want memory stack, not the backing store for
register one.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/include/asm/ptrace.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/ptrace.h b/arch/m68k/include/asm/ptrace.h index 0f717045bdde..a45cb6894ad3 100644 --- a/arch/m68k/include/asm/ptrace.h +++ b/arch/m68k/include/asm/ptrace.h | |||
| @@ -15,6 +15,7 @@ | |||
| 15 | #define profile_pc(regs) instruction_pointer(regs) | 15 | #define profile_pc(regs) instruction_pointer(regs) |
| 16 | #define current_pt_regs() \ | 16 | #define current_pt_regs() \ |
| 17 | (struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1 | 17 | (struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1 |
| 18 | #define current_user_stack_pointer() rdusp() | ||
| 18 | 19 | ||
| 19 | #define arch_has_single_step() (1) | 20 | #define arch_has_single_step() (1) |
| 20 | 21 | ||