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-rw-r--r--arch/mips/include/asm/ptrace.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h
index 7b99c670e478..4b7f5252d2fd 100644
--- a/arch/mips/include/asm/ptrace.h
+++ b/arch/mips/include/asm/ptrace.h
@@ -137,7 +137,19 @@ extern int ptrace_set_watch_regs(struct task_struct *child,
137 */ 137 */
138#define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER) 138#define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER)
139 139
140#define regs_return_value(_regs) ((_regs)->regs[2]) 140static inline int is_syscall_success(struct pt_regs *regs)
141{
142 return !regs->regs[7];
143}
144
145static inline long regs_return_value(struct pt_regs *regs)
146{
147 if (is_syscall_success(regs))
148 return regs->regs[2];
149 else
150 return -regs->regs[2];
151}
152
141#define instruction_pointer(regs) ((regs)->cp0_epc) 153#define instruction_pointer(regs) ((regs)->cp0_epc)
142#define profile_pc(regs) instruction_pointer(regs) 154#define profile_pc(regs) instruction_pointer(regs)
143 155