libxl: Enable -Wshadow.

It was convenient to invent $(CFLAGS_LIBXL) to do this.

Various renamings to avoid shadowing standard functions:
  - index(3)
  - listen(2)
  - link(2)
  - abort(3)
  - abs(3)

Reduced the scope of some variables to avoid conflicts.

Change to libxc is due to the nested hypercall buf macros in
set_xen_guest_handle (used in libxl) using the same local private vars.

Build tested only.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/tools/libxl/libxl_exec.c b/tools/libxl/libxl_exec.c
index 04773866e4..98bfd716ac 100644
--- a/tools/libxl/libxl_exec.c
+++ b/tools/libxl/libxl_exec.c
@@ -35,7 +35,7 @@ static void check_open_fds(const char *what)
 #ifdef __linux__
         size_t len;
         char path[PATH_MAX];
-        char link[PATH_MAX+1];
+        char linkpath[PATH_MAX+1];
 #endif
         flags = fcntl(i, F_GETFD);
         if ( flags == -1 ) {
@@ -52,11 +52,11 @@ static void check_open_fds(const char *what)
 
 #ifdef __linux__
         snprintf(path, PATH_MAX, "/proc/%d/fd/%d", getpid(), i);
-        len = readlink(path, link, PATH_MAX);
+        len = readlink(path, linkpath, PATH_MAX);
         if (len > 0) {
-            link[len] = '\0';
+            linkpath[len] = '\0';
             fprintf(stderr, "libxl: execing %s: fd %d is open to %s with flags %#x\n",
-                    what, i, link, flags);
+                    what, i, linkpath, flags);
         } else
 #endif
             fprintf(stderr, "libxl: execing %s: fd %d is open with flags %#x\n",