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| author | Nicholas Piggin <npiggin@gmail.com> | 2020-05-07 22:13:31 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-15 11:58:54 +1000 |
| commit | 912237ea166428edcbf3c137adf12cb987c477f2 (patch) | |
| tree | e5397bfdc0e5723782986aeceb77db3a06de4947 /arch/powerpc/include/asm/ptrace.h | |
| parent | db30144b5c9cfb09c6b8b2fa7a9c351c94aa3433 (diff) | |
| download | linux-912237ea166428edcbf3c137adf12cb987c477f2.tar.bz2 | |
powerpc: trap_is_syscall() helper to hide syscall trap number
A new system call interrupt will be added with a new trap number.
Hide the explicit 0xc00 test behind an accessor to reduce churn
in callers.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Make it a static inline]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200507121332.2233629-3-mpe@ellerman.id.au
Diffstat (limited to 'arch/powerpc/include/asm/ptrace.h')
| -rw-r--r-- | arch/powerpc/include/asm/ptrace.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index 7c585bddc06e..5db45790a087 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -222,6 +222,11 @@ static inline void set_trap(struct pt_regs *regs, unsigned long val) regs->trap = (regs->trap & TRAP_FLAGS_MASK) | (val & ~TRAP_FLAGS_MASK); } +static inline bool trap_is_syscall(struct pt_regs *regs) +{ + return TRAP(regs) == 0xc00; +} + #define arch_has_single_step() (1) #ifndef CONFIG_BOOK3S_601 #define arch_has_block_step() (true) |