diff options
Diffstat (limited to 'gdb/gdbserver/linux-low.c')
| -rw-r--r-- | gdb/gdbserver/linux-low.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c index 8b7d9e8..8e91d2b 100644 --- a/gdb/gdbserver/linux-low.c +++ b/gdb/gdbserver/linux-low.c @@ -1572,25 +1572,29 @@ linux_wait (ptid_t ptid, return event_ptid; } -/* Send a signal to an LWP. For LinuxThreads, kill is enough; however, if - thread groups are in use, we need to use tkill. */ +/* Send a signal to an LWP. */ static int kill_lwp (unsigned long lwpid, int signo) { - static int tkill_failed; + /* Use tkill, if possible, in case we are using nptl threads. If tkill + fails, then we are not using nptl threads and we should be using kill. */ - errno = 0; +#ifdef __NR_tkill + { + static int tkill_failed; -#ifdef SYS_tkill - if (!tkill_failed) - { - int ret = syscall (SYS_tkill, lwpid, signo); - if (errno != ENOSYS) - return ret; - errno = 0; - tkill_failed = 1; - } + if (!tkill_failed) + { + int ret; + + errno = 0; + ret = syscall (__NR_tkill, lwpid, signo); + if (errno != ENOSYS) + return ret; + tkill_failed = 1; + } + } #endif return kill (lwpid, signo); |