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authorMiloš Stojanović <Milos.Stojanovic@rt-rk.com>2017-05-15 16:59:46 +0200
committerRiku Voipio <riku.voipio@linaro.org>2017-05-29 14:56:08 +0300
commitcf8b8bfc5049c10f70b3a17f66c7d2698a5dcff5 (patch)
treeeb73484ac6dc0a9bbca0c0a7b9512482616fceef /linux-user
parentc1a402a7ae9ba9c41b4ac7e7ca3e48e4d60eb35a (diff)
linux-user: add support for rt_tgsigqueueinfo() system call
Add a new system call: rt_tgsigqueueinfo(). This system call is similar to rt_sigqueueinfo(), but instead of sending the signal and data to the whole thread group with the ID equal to the argument tgid, it sends it to a single thread within that thread group. The ID of the thread is specified by the tid argument. The implementation is based on the rt_sigqueueinfo() in linux-user mode, where the tid is added as the second argument and the previous second and third argument become arguments three and four, respectively. Signed-off-by: Miloš Stojanović <Milos.Stojanovic@rt-rk.com> Conflicts: linux-user/syscall.c Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Diffstat (limited to 'linux-user')
-rw-r--r--linux-user/syscall.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 3373853bb9..925ae11ea6 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -238,6 +238,7 @@ static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
#define __NR_sys_getdents64 __NR_getdents64
#define __NR_sys_getpriority __NR_getpriority
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
+#define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
#define __NR_sys_syslog __NR_syslog
#define __NR_sys_futex __NR_futex
#define __NR_sys_inotify_init __NR_inotify_init
@@ -275,6 +276,8 @@ _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
loff_t *, res, uint, wh);
#endif
_syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo)
+_syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig,
+ siginfo_t *, uinfo)
_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
#ifdef __NR_exit_group
_syscall1(int,exit_group,int,error_code)
@@ -8872,6 +8875,19 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
}
break;
+ case TARGET_NR_rt_tgsigqueueinfo:
+ {
+ siginfo_t uinfo;
+
+ p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1);
+ if (!p) {
+ goto efault;
+ }
+ target_to_host_siginfo(&uinfo, p);
+ unlock_user(p, arg4, 0);
+ ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, arg3, &uinfo));
+ }
+ break;
#ifdef TARGET_NR_sigreturn
case TARGET_NR_sigreturn:
if (block_signals()) {