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| author | Roland McGrath <roland@redhat.com> | 2009-05-28 23:26:38 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-09 05:29:25 +0200 |
| commit | ec097c84dff17511f2693e6ef6c3064dfbf0a3af (patch) | |
| tree | 3eac516a13730dcb371c094c0e8d35c9768c9c23 /arch/powerpc/include/asm | |
| parent | fbdev: Add PLB support and cleanup DCR in xilinxfb driver. (diff) | |
| download | linux-ec097c84dff17511f2693e6ef6c3064dfbf0a3af.tar.xz linux-ec097c84dff17511f2693e6ef6c3064dfbf0a3af.zip | |
powerpc: Add PTRACE_SINGLEBLOCK support
Reworked by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This adds block-step support on powerpc, including a PTRACE_SINGLEBLOCK
request for ptrace.
The BookE implementation is tweaked to fire a single step after a
block step in order to mimmic the server behaviour.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/ptrace.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index c9c678fb2538..8c341490cfc5 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -135,7 +135,9 @@ do { \ * These are defined as per linux/ptrace.h, which see. */ #define arch_has_single_step() (1) +#define arch_has_block_step() (!cpu_has_feature(CPU_FTR_601)) extern void user_enable_single_step(struct task_struct *); +extern void user_enable_block_step(struct task_struct *); extern void user_disable_single_step(struct task_struct *); #endif /* __ASSEMBLY__ */ @@ -288,4 +290,6 @@ extern void user_disable_single_step(struct task_struct *); #define PPC_PTRACE_PEEKUSR_3264 0x91 #define PPC_PTRACE_POKEUSR_3264 0x90 +#define PTRACE_SINGLEBLOCK 0x100 /* resume execution until next branch */ + #endif /* _ASM_POWERPC_PTRACE_H */ |