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| author | Max Filippov <jcmvbkbc@gmail.com> | 2013-10-17 02:42:26 +0400 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2014-01-14 22:19:58 +0400 |
| commit | f615136c06a791364f5afa8b8ba965315a6440f1 (patch) | |
| tree | d9ced4cfdfd13438ce23384fbd64006bb74fd8b6 /arch/xtensa/include/asm/ptrace.h | |
| parent | 26a8e96a8b37e8070fa9dcb1b7490cf4d4492d50 (diff) | |
| download | linux-f615136c06a791364f5afa8b8ba965315a6440f1.tar.xz | |
xtensa: add SMP support
This is largely based on SMP code from the xtensa-2.6.29-smp tree by
Piet Delaney, Marc Gauthier, Joe Taylor, Christian Zankel (and possibly
other Tensilica folks).
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/include/asm/ptrace.h')
| -rw-r--r-- | arch/xtensa/include/asm/ptrace.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/ptrace.h b/arch/xtensa/include/asm/ptrace.h index 81f31bc9dde0..598e752dcbcd 100644 --- a/arch/xtensa/include/asm/ptrace.h +++ b/arch/xtensa/include/asm/ptrace.h @@ -59,9 +59,17 @@ struct pt_regs { (task_stack_page(tsk) + KERNEL_STACK_SIZE - (XCHAL_NUM_AREGS-16)*4) - 1) # define user_mode(regs) (((regs)->ps & 0x00000020)!=0) # define instruction_pointer(regs) ((regs)->pc) +# define return_pointer(regs) (MAKE_PC_FROM_RA((regs)->areg[0], \ + (regs)->areg[1])) # ifndef CONFIG_SMP # define profile_pc(regs) instruction_pointer(regs) +# else +# define profile_pc(regs) \ + ({ \ + in_lock_functions(instruction_pointer(regs)) ? \ + return_pointer(regs) : instruction_pointer(regs); \ + }) # endif #define user_stack_pointer(regs) ((regs)->areg[1]) |