server: Use thr_kill2 syscall to signal threads on FreeBSD.
diff --git a/configure b/configure
index 101511d..8c3db36 100755
--- a/configure
+++ b/configure
@@ -15689,6 +15689,7 @@
+
for ac_func in \
_pclose \
_popen \
@@ -15746,6 +15747,7 @@
strncasecmp \
strtold \
tcgetattr \
+ thr_kill2 \
timegm \
usleep \
vsnprintf \
diff --git a/configure.ac b/configure.ac
index 6b90cd2..64be416 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1287,6 +1287,7 @@
strncasecmp \
strtold \
tcgetattr \
+ thr_kill2 \
timegm \
usleep \
vsnprintf \
diff --git a/include/config.h.in b/include/config.h.in
index 0c4935c..df65adb 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -849,6 +849,9 @@
/* Define to 1 if you have the <termios.h> header file. */
#undef HAVE_TERMIOS_H
+/* Define to 1 if you have the `thr_kill2' function. */
+#undef HAVE_THR_KILL2
+
/* Define to 1 if you have the `timegm' function. */
#undef HAVE_TIMEGM
diff --git a/server/ptrace.c b/server/ptrace.c
index f1a9afb..343e38e 100644
--- a/server/ptrace.c
+++ b/server/ptrace.c
@@ -35,6 +35,10 @@
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
+#ifdef HAVE_SYS_THR_H
+# include <sys/ucontext.h>
+# include <sys/thr.h>
+#endif
#include <unistd.h>
#include "ntstatus.h"
@@ -206,9 +210,8 @@
/* send a signal to a specific thread */
static inline int tkill( int tgid, int pid, int sig )
{
- int ret = -ENOSYS;
-
#ifdef __linux__
+ int ret = -ENOSYS;
# ifdef __i386__
__asm__( "pushl %%ebx\n\t"
"movl %2,%%ebx\n\t"
@@ -227,11 +230,15 @@
__asm__( "syscall" : "=a" (ret)
: "0" (200) /*SYS_tkill*/, "D" (pid), "S" (sig) );
# endif
-#endif /* __linux__ */
-
if (ret >= 0) return ret;
errno = -ret;
return -1;
+#elif defined(__FreeBSD__) && defined(HAVE_THR_KILL2)
+ return thr_kill2( tgid, pid, sig );
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
}
/* initialize the process tracing mechanism */
