Attachment 468 Details for Bug 900 – Outline of the fix for lib_vinegret

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[patch] Outline of the fix for lib_vinegret

lib_vinegret_fix.diff (text/plain), 1.58 KB, created by Aleksey Midenkov on 2012-03-08 03:06:47 CST

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Creator: Aleksey Midenkov

Created: 2012-03-08 03:06:47 CST

Size: 1.58 KB

patch

obsolete

>diff -Nuarpd lib_vinegret/executable.c lib_vinegret_fix/executable.c
>--- lib_vinegret/executable.c	2012-03-08 12:38:46.222531823 +0400
>+++ lib_vinegret_fix/executable.c	2012-03-08 12:26:36.051460880 +0400
>@@ -5,5 +5,7 @@ int main()
> {
>     libv1_user_func();
>     libv2_user_func();
>+    libv1_user_func();
>+    libv2_user_func();
>     return 0;
> }
>diff -Nuarpd lib_vinegret/lib_v2_user_scoper.c lib_vinegret_fix/lib_v2_user_scoper.c
>--- lib_vinegret/lib_v2_user_scoper.c	1970-01-01 03:00:00.000000000 +0300
>+++ lib_vinegret_fix/lib_v2_user_scoper.c	2012-03-08 12:45:07.113090460 +0400
>@@ -0,0 +1,20 @@
>+#include <stdio.h>
>+#include <dlfcn.h>
>+
>+void *lib_v2_user;
>+void (*libv2_user_orig)();
>+
>+void __init()
>+{
>+    lib_v2_user = dlopen("./lib_v2_user.so", RTLD_LAZY|RTLD_DEEPBIND);
>+    if (lib_v2_user) {
>+        *(void **)(&libv2_user_orig) = dlsym(lib_v2_user, "libv2_user_func");
>+    } else {
>+        fprintf(stderr, "%s\n", dlerror());
>+    }
>+}
>+
>+void libv2_user_func()
>+{
>+    (*libv2_user_orig)();
>+}
>diff -Nuarpd lib_vinegret/Makefile lib_vinegret_fix/Makefile
>--- lib_vinegret/Makefile	2012-03-08 12:47:56.633339100 +0400
>+++ lib_vinegret_fix/Makefile	2012-03-08 12:47:35.933308729 +0400
>@@ -15,7 +15,10 @@ lib_v1_user.so: lib_v1_user.c lib_v1.so
> lib_v2_user.so: lib_v2_user.c lib_v2.so
> 	gcc $(shared) $(rpath) $^ -o $@
> 
>-executable: executable.c lib_v1_user.so lib_v2_user.so
>+lib_v2_user_scoper.so: lib_v2_user_scoper.c lib_v2_user.so
>+	gcc $(shared) $(rpath) -Xlinker -init=__init $< -ldl -o $@
>+
>+executable: executable.c lib_v1_user.so lib_v2_user_scoper.so
> 	gcc $(rpath) $^ -o $@
> 
> clean:

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