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| 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/h8300 | |
| parent | 5208ba24e7826519d310474dedaed2f84b0ab6a0 (diff) | |
| download | blackbird-op-linux-1ca97bb541a1f5a735e697a8bba763cde3aab452.tar.gz blackbird-op-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/h8300')
| -rw-r--r-- | arch/h8300/include/asm/ptrace.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/h8300/include/asm/ptrace.h b/arch/h8300/include/asm/ptrace.h index 7468589a128b..6183371d0c93 100644 --- a/arch/h8300/include/asm/ptrace.h +++ b/arch/h8300/include/asm/ptrace.h @@ -63,6 +63,7 @@ struct pt_regs { #define current_pt_regs() ((struct pt_regs *) \ (THREAD_SIZE + (unsigned long)current_thread_info()) - 1) #define signal_pt_regs() ((struct pt_regs *)current->thread.esp0) +#define current_user_stack_pointer() rdusp() #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ #endif /* _H8300_PTRACE_H */ |
