From da2a34f7f9999da09f6c307b40b66eba8cc38283 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Mon, 6 Jun 2016 19:58:19 +0100 Subject: linux-user: Special-case ERESTARTSYS in target_strerror() Since TARGET_ERESTARTSYS and TARGET_ESIGRETURN are internal-to-QEMU error numbers, handle them specially in target_strerror(), to avoid confusing strace output like: 9521 rt_sigreturn(14,8,274886297808,8,0,268435456) = -1 errno=513 (Unknown error 513) Signed-off-by: Peter Maydell Signed-off-by: Riku Voipio --- linux-user/syscall.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 262c645d3c..bd8095c819 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -632,6 +632,13 @@ static inline int is_error(abi_long ret) const char *target_strerror(int err) { + if (err == TARGET_ERESTARTSYS) { + return "To be restarted"; + } + if (err == TARGET_QEMU_ESIGRETURN) { + return "Successful exit from sigreturn"; + } + if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) { return NULL; } -- cgit v1.2.3