[pypy-commit] creflect default: tweak

[arigo]

Author: Armin Rigo <ar...@tunes.org>
Branch: 
Changeset: r117:8781274565f2
Date: 2014-11-29 12:19 +0100
http://bitbucket.org/cffi/creflect/changeset/8781274565f2/

Log:    tweak

diff --git a/creflect/src/creflect_check.c b/creflect/src/creflect_check.c
--- a/creflect/src/creflect_check.c
+++ b/creflect/src/creflect_check.c
@@ -9,7 +9,7 @@
 #include "creflect_print.h"
 
 
-void creflect_dump_information(const char *filename)
+void creflect_dump_information(const char *filename, const char *creflect_main)
 {
     char filename_ex[PATH_MAX];
 
@@ -24,7 +24,7 @@
         goto err;
 
     void (*crxmain)(crx_builder_t *);
-    crxmain = (void(*)(crx_builder_t *))dlsym(lib, "_creflect_main");
+    crxmain = (void(*)(crx_builder_t *))dlsym(lib, creflect_main);
     if (crxmain == NULL)
         goto err;
 
@@ -44,11 +44,14 @@
 
 int main(int argc, char *argv[])
 {
-    if (argc != 2) {
-        fprintf(stderr, "One argument needed: the name of the library file"
-                        " out of which the creflect information is dumped.\n");
+    if (argc != 2 && argc != 3) {
+        fprintf(stderr, 
+            "Usage: %s libfilename [entrypoint]\n\n"
+            "Dumps the creflect information out of the library by calling 
the\n"
+            "entry point.  It is named '_creflect_main' by default, but can\n"
+            "also be specified as second argument.\n", argv[0]);
         return 2;
     }
-    creflect_dump_information(argv[1]);
+    creflect_dump_information(argv[1], argc == 2 ? "_creflect_main" : argv[2]);
     return 0;
 }
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