diff options
| author | H. Peter Anvin <hpa@linux.intel.com> | 2012-01-19 12:56:50 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-01-19 12:56:50 -0800 |
| commit | 282f445a779ed76fca9884fe377bf56a3088b208 (patch) | |
| tree | d9abcf526baee0100672851e0a8894c19e762a39 /include/linux/ptrace.h | |
| parent | 68f30fbee19cc67849b9fa8e153ede70758afe81 (diff) | |
| parent | 90a4c0f51e8e44111a926be6f4c87af3938a79c3 (diff) | |
Merge remote-tracking branch 'linus/master' into x86/urgent
Diffstat (limited to 'include/linux/ptrace.h')
| -rw-r--r-- | include/linux/ptrace.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index 800f113bea6..c2f1f6a5fcb 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -112,6 +112,7 @@ #include <linux/compiler.h> /* For unlikely. */ #include <linux/sched.h> /* For struct task_struct. */ +#include <linux/err.h> /* for IS_ERR_VALUE */ extern long arch_ptrace(struct task_struct *child, long request, @@ -127,8 +128,9 @@ extern void __ptrace_link(struct task_struct *child, struct task_struct *new_parent); extern void __ptrace_unlink(struct task_struct *child); extern void exit_ptrace(struct task_struct *tracer); -#define PTRACE_MODE_READ 1 -#define PTRACE_MODE_ATTACH 2 +#define PTRACE_MODE_READ 0x01 +#define PTRACE_MODE_ATTACH 0x02 +#define PTRACE_MODE_NOAUDIT 0x04 /* Returns 0 on success, -errno on denial. */ extern int __ptrace_may_access(struct task_struct *task, unsigned int mode); /* Returns true on success, false on denial. */ @@ -265,6 +267,15 @@ static inline void ptrace_release_task(struct task_struct *task) #define force_successful_syscall_return() do { } while (0) #endif +#ifndef is_syscall_success +/* + * On most systems we can tell if a syscall is a success based on if the retval + * is an error value. On some systems like ia64 and powerpc they have different + * indicators of success/failure and must define their own. + */ +#define is_syscall_success(regs) (!IS_ERR_VALUE((unsigned long)(regs_return_value(regs)))) +#endif + /* * <asm/ptrace.h> should define the following things inside #ifdef __KERNEL__. * |