Add more info to debug messages

[skip ci]

3 files changed, 7 insertions, 5 deletions

diff --git a/src/nvim/event/libuv_process.c b/src/nvim/event/libuv_process.c
index 0b1ecb12e2..c02f730431 100644
--- a/src/nvim/event/libuv_process.c
+++ b/src/nvim/event/libuv_process.c
@@ -82,7 +82,7 @@ int libuv_process_spawn(LibuvProcess *uvproc)
 
   int status;
   if ((status = uv_spawn(&proc->loop->uv, &uvproc->uv, &uvproc->uvopts))) {
-    ELOG("uv_spawn failed: %s", uv_strerror(status));
+    ELOG("uv_spawn(%s) failed: %s", uvproc->uvopts.file, uv_strerror(status));
     if (uvproc->uvopts.env) {
       os_free_fullenv(uvproc->uvopts.env);
     }
diff --git a/src/nvim/os/pty_process_unix.c b/src/nvim/os/pty_process_unix.c
index d794969ab5..36d6dbe2db 100644
--- a/src/nvim/os/pty_process_unix.c
+++ b/src/nvim/os/pty_process_unix.c
@@ -175,7 +175,7 @@ static void init_child(PtyProcess *ptyproc)
 
   Process *proc = (Process *)ptyproc;
   if (proc->cwd && os_chdir(proc->cwd) != 0) {
-    ELOG("chdir failed: %s", strerror(errno));
+    ELOG("chdir(%s) failed: %s", proc->cwd, strerror(errno));
     return;
   }
 
@@ -184,7 +184,7 @@ static void init_child(PtyProcess *ptyproc)
   assert(proc->env);
   environ = tv_dict_to_env(proc->env);
   execvp(prog, proc->argv);
-  ELOG("execvp failed: %s: %s", strerror(errno), prog);
+  ELOG("execvp(%s) failed: %s", prog, strerror(errno));
 
   _exit(122);  // 122 is EXEC_FAILED in the Vim source.
 }
diff --git a/src/nvim/os/pty_process_win.c b/src/nvim/os/pty_process_win.c
index 94444e4d23..2bf73d08e6 100644
--- a/src/nvim/os/pty_process_win.c
+++ b/src/nvim/os/pty_process_win.c
@@ -203,11 +203,13 @@ int pty_process_spawn(PtyProcess *ptyproc)
 cleanup:
   if (status) {
     // In the case of an error of MultiByteToWideChar or CreateProcessW.
-    ELOG("pty_process_spawn: %s: error code: %d", emsg, status);
+    ELOG("pty_process_spawn(%s): %s: error code: %d",
+         proc->argv[0], emsg, status);
     status = os_translate_sys_error(status);
   } else if (err != NULL) {
     status = (int)winpty_error_code(err);
-    ELOG("pty_process_spawn: %s: error code: %d", emsg, status);
+    ELOG("pty_process_spawn(%s): %s: error code: %d",
+         proc->argv[0], emsg, status);
     status = translate_winpty_error(status);
   }
   winpty_error_free(err);