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| author | Riku Voipio <riku.voipio@linaro.org> | 2014-06-22 11:25:42 +0100 |
|---|---|---|
| committer | Riku Voipio <riku.voipio@linaro.org> | 2014-08-22 15:06:33 +0300 |
| commit | 518343413fd311a3d95798b2c1d51853fd8d3c85 (patch) | |
| tree | d0b8b5929b946a3cdccd40d4399e24c47eef9e5b /linux-user | |
| parent | f17f4989fa193fa8279474c5462289a3cfe69aea (diff) | |
| download | qemu-518343413fd311a3d95798b2c1d51853fd8d3c85.tar.gz | |
linux-user: support timerfd_{create, gettime, settime} syscalls
Adds support for the timerfd_create, timerfd_gettime & timerfd_settime
syscalls, allowing use of timerfds by target programs.
v2: By Riku - added configure check for timerfd and ifdefs
for benefit of old distributions like RHEL5.
Signed-off-by: Paul Burton <paul@archlinuxmips.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/strace.list | 9 | ||||
| -rw-r--r-- | linux-user/syscall.c | 45 |
2 files changed, 54 insertions, 0 deletions
diff --git a/linux-user/strace.list b/linux-user/strace.list index fcb258d348..8de972a6ee 100644 --- a/linux-user/strace.list +++ b/linux-user/strace.list @@ -1404,6 +1404,15 @@ #ifdef TARGET_NR_timer_settime { TARGET_NR_timer_settime, "timer_settime" , NULL, NULL, NULL }, #endif +#ifdef TARGET_NR_timerfd_create +{ TARGET_NR_timerfd_create, "timerfd_create" , NULL, NULL, NULL }, +#endif +#ifdef TARGET_NR_timerfd_gettime +{ TARGET_NR_timerfd_gettime, "timerfd_gettime" , NULL, NULL, NULL }, +#endif +#ifdef TARGET_NR_timerfd_settime +{ TARGET_NR_timerfd_settime, "timerfd_settime" , NULL, NULL, NULL }, +#endif #ifdef TARGET_NR_times { TARGET_NR_times, "times" , NULL, NULL, NULL }, #endif diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 7c108abcf2..44853d090a 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -58,6 +58,7 @@ int __clone2(int (*fn)(void *), void *child_stack_base, #include <sys/shm.h> #include <sys/sem.h> #include <sys/statfs.h> +#include <sys/timerfd.h> #include <utime.h> #include <sys/sysinfo.h> //#include <sys/user.h> @@ -9547,6 +9548,50 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, } #endif +#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD) + case TARGET_NR_timerfd_create: + ret = get_errno(timerfd_create(arg1, + target_to_host_bitmask(arg2, fcntl_flags_tbl))); + break; +#endif + +#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD) + case TARGET_NR_timerfd_gettime: + { + struct itimerspec its_curr; + + ret = get_errno(timerfd_gettime(arg1, &its_curr)); + + if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) { + goto efault; + } + } + break; +#endif + +#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD) + case TARGET_NR_timerfd_settime: + { + struct itimerspec its_new, its_old, *p_new; + + if (arg3) { + if (target_to_host_itimerspec(&its_new, arg3)) { + goto efault; + } + p_new = &its_new; + } else { + p_new = NULL; + } + + ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old)); + + if (arg4 && host_to_target_itimerspec(arg4, &its_old)) { + goto efault; + } + } + break; +#endif + default: unimplemented: gemu_log("qemu: Unsupported syscall: %d\n", num); |