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author | Michal Marek <mmarek@suse.cz> | 2010-08-04 13:59:13 +0200 |
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committer | Michal Marek <mmarek@suse.cz> | 2010-08-04 13:59:13 +0200 |
commit | 772320e84588dcbe1600ffb83e5f328f2209ac2a (patch) | |
tree | a7de21b79340aeaa17c58126f6b801b82c77b53a /arch/blackfin/include/asm/ptrace.h | |
parent | modpost: support objects with more than 64k sections (diff) | |
parent | Linux 2.6.35 (diff) | |
download | linux-772320e84588dcbe1600ffb83e5f328f2209ac2a.tar.xz linux-772320e84588dcbe1600ffb83e5f328f2209ac2a.zip |
Merge commit 'v2.6.35' into kbuild/kbuild
Conflicts:
arch/powerpc/Makefile
Diffstat (limited to 'arch/blackfin/include/asm/ptrace.h')
-rw-r--r-- | arch/blackfin/include/asm/ptrace.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/ptrace.h b/arch/blackfin/include/asm/ptrace.h index b33a4488f498..aaa1c6c2bc19 100644 --- a/arch/blackfin/include/asm/ptrace.h +++ b/arch/blackfin/include/asm/ptrace.h @@ -24,6 +24,8 @@ #ifndef __ASSEMBLY__ +struct task_struct; + /* this struct defines the way the registers are stored on the stack during a system call. */ @@ -101,9 +103,30 @@ struct pt_regs { master interrupt enable. */ #define user_mode(regs) (!(((regs)->ipend & ~0x10) & (((regs)->ipend & ~0x10) - 1))) #define instruction_pointer(regs) ((regs)->pc) +#define user_stack_pointer(regs) ((regs)->usp) #define profile_pc(regs) instruction_pointer(regs) extern void show_regs(struct pt_regs *); +#define arch_has_single_step() (1) +extern void user_enable_single_step(struct task_struct *child); +extern void user_disable_single_step(struct task_struct *child); +/* common code demands this function */ +#define ptrace_disable(child) user_disable_single_step(child) + +/* + * Get the address of the live pt_regs for the specified task. + * These are saved onto the top kernel stack when the process + * is not running. + * + * Note: if a user thread is execve'd from kernel space, the + * kernel stack will not be empty on entry to the kernel, so + * ptracing these tasks will fail. + */ +#define task_pt_regs(task) \ + (struct pt_regs *) \ + ((unsigned long)task_stack_page(task) + \ + (THREAD_SIZE - sizeof(struct pt_regs))) + #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ @@ -173,4 +196,6 @@ extern void show_regs(struct pt_regs *); #define PT_FDPIC_EXEC 232 #define PT_FDPIC_INTERP 236 +#define PT_LAST_PSEUDO PT_FDPIC_INTERP + #endif /* _BFIN_PTRACE_H */ |