From: Julian Seward <jseward@acm.org>
Date: Sun, 13 Mar 2005 18:02:51 +0000 (+0000)
Subject: Add support for sys_tgkill (syscall 270), needed by tls gunk on
X-Git-Tag: svn/VALGRIND_3_0_0~977
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d2bc233d5e387768d3118577cf79ed3d79cab672;p=thirdparty%2Fvalgrind.git

Add support for sys_tgkill (syscall 270), needed by tls gunk on
x86-linux.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3341
---

diff --git a/coregrind/linux/core_os.h b/coregrind/linux/core_os.h
index b4b7f150c9..d7553ea856 100644
--- a/coregrind/linux/core_os.h
+++ b/coregrind/linux/core_os.h
@@ -82,6 +82,8 @@ LINUX_SYSCALL_WRAPPER(sys_epoll_create);
 LINUX_SYSCALL_WRAPPER(sys_epoll_ctl);
 LINUX_SYSCALL_WRAPPER(sys_epoll_wait);
 
+LINUX_SYSCALL_WRAPPER(sys_tgkill);
+
 LINUX_SYSCALL_WRAPPER(sys_io_setup);
 LINUX_SYSCALL_WRAPPER(sys_io_destroy);
 LINUX_SYSCALL_WRAPPER(sys_io_getevents);
diff --git a/coregrind/linux/syscalls.c b/coregrind/linux/syscalls.c
index 507d17ef9b..4b401bd1be 100644
--- a/coregrind/linux/syscalls.c
+++ b/coregrind/linux/syscalls.c
@@ -475,6 +475,25 @@ POST(sys_epoll_wait)
       POST_MEM_WRITE( ARG2, sizeof(struct epoll_event)*RES ) ;
 }
 
+PRE(sys_tgkill, 0)
+{
+   /* int tgkill(pid_t tgid, pid_t tid, int sig); */
+   PRINT("sys_tgkill ( %d, %d, %d )", ARG1,ARG2,ARG3);
+   PRE_REG_READ3(long, "tgkill", int, tgid, int, tid, int, sig);
+   if (!VG_(client_signal_OK)(ARG3))
+      SET_RESULT( -VKI_EINVAL );
+}
+
+POST(sys_tgkill)
+{
+   if (VG_(clo_trace_signals))
+      VG_(message)(Vg_DebugMsg, "tgkill: sent signal %d to pid %d/%d",
+                   ARG3, ARG1, ARG2);
+   // Check to see if this kill gave us a pending signal
+   VG_(poll_signals)(tid);
+}
+
+
 // Nb: this wrapper is "Special" because we have to pad/unpad memory around
 // the syscall itself, and this allows us to control exactly the code that
 // gets run while the padding is in place.
diff --git a/coregrind/x86-linux/syscalls.c b/coregrind/x86-linux/syscalls.c
index d3da367b09..56a8c31d64 100644
--- a/coregrind/x86-linux/syscalls.c
+++ b/coregrind/x86-linux/syscalls.c
@@ -1590,7 +1590,7 @@ const struct SyscallTableEntry VGA_(syscall_table)[] = {
    GENXY(__NR_statfs64,          sys_statfs64),       // 268
    GENXY(__NR_fstatfs64,         sys_fstatfs64),      // 269
 
-   //   (__NR_tgkill,            sys_tgkill),         // 270 */Linux
+   LINXY(__NR_tgkill,            sys_tgkill),         // 270 */Linux
    GENX_(__NR_utimes,            sys_utimes),         // 271
    //   (__NR_fadvise64_64,      sys_fadvise64_64),   // 272 */(Linux?)
    GENX_(__NR_vserver,           sys_ni_syscall),     // 273