Just like for QEMU_LOG_FILENAME, replace %d with PID in the GDB socket
path. This allows running multi-process applications with, e.g.,
export QEMU_GDB=/tmp/qemu-%d.sock. Currently this is not possible,
since the first process will cause the subsequent ones to fail due to
not being able to bind() the GDB socket.
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Reviewed-by: Warner Losh <i...@bsdimp.com>
Signed-off-by: Ilya Leoshkevich <i...@linux.ibm.com>
---
gdbstub/user.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/gdbstub/user.c b/gdbstub/user.c
index 0b4bfa9c488..ef52f249ce9 100644
--- a/gdbstub/user.c
+++ b/gdbstub/user.c
@@ -316,9 +316,19 @@ static bool gdb_accept_socket(int gdb_fd)
static int gdbserver_open_socket(const char *path)
{
+ g_autoptr(GString) buf = g_string_new("");
struct sockaddr_un sockaddr = {};
+ char *pid_placeholder;
int fd, ret;
+ pid_placeholder = strstr(path, "%d");
+ if (pid_placeholder != NULL) {
+ g_string_append_len(buf, path, pid_placeholder - path);
+ g_string_append_printf(buf, "%d", qemu_get_thread_id());
+ g_string_append(buf, pid_placeholder + 2);
+ path = buf->str;
+ }
+
fd = socket(AF_UNIX, SOCK_STREAM, 0);
if (fd < 0) {
perror("create socket");
--
2.47.0
