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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-18 18:50:10 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 00:07:39 +0100 |
| commit | 1ca97bb541a1f5a735e697a8bba763cde3aab452 (patch) | |
| tree | 548d835c0f13de780678922ba3b3ea4c841e8cd7 /arch/m68k | |
| parent | missing user_stack_pointer() instances (diff) | |
| download | linux-1ca97bb541a1f5a735e697a8bba763cde3aab452.tar.xz linux-1ca97bb541a1f5a735e697a8bba763cde3aab452.zip | |
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 @@ #define profile_pc(regs) instruction_pointer(regs) #define current_pt_regs() \ (struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1 +#define current_user_stack_pointer() rdusp() #define arch_has_single_step() (1) |