execvpe backport

[Andrew John Hughes]

This patch backports the execvpe patch provided by Martin
Buchholz:

http://mail.openjdk.java.net/pipermail/core-libs-dev/2009-July/002047.html

This is needed with newer versions of glibc (e.g. that in F12).
Discussed on core-libs-dev list and approved on IRC by Lillian.

ChangeLog:

2009-07-30  Andrew John Hughes  <ahughes at redhat.com>

	* Makefile.am:
	Add new patch.
	* patches/openjdk/rename-execvpe.patch,
	Backport execvpe patch from Martin Buchholz.
	http://mail.openjdk.java.net/pipermail/core-libs-dev/2009-July/002047.html

-- 
Andrew :)

Free Java Software Engineer
Red Hat, Inc. (http://www.redhat.com)

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-------------- next part --------------
diff -r 051ca564791d Makefile.am
--- a/Makefile.am	Thu Jul 30 04:51:32 2009 -0400
+++ b/Makefile.am	Thu Jul 30 22:41:12 2009 +0100
@@ -587,7 +587,8 @@
 	patches/icedtea-pr261.patch \
 	patches/icedtea-doc-headers.patch \
 	patches/openjdk/bidi-tests.patch \
-	patches/openjdk/annotation-tests.patch
+	patches/openjdk/annotation-tests.patch \
+	patches/openjdk/rename-execvpe.patch
 
 if WITH_ALT_HSBUILD
 ICEDTEA_PATCHES += \
diff -r 051ca564791d patches/openjdk/rename-execvpe.patch
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/patches/openjdk/rename-execvpe.patch	Thu Jul 30 22:41:12 2009 +0100
@@ -0,0 +1,42 @@
+# HG changeset patch
+# User martin
+# Date 1248923453 25200
+# Node ID 0f6e8cdc0cbab5221e81b7d25f1b869bd6ecf34a
+# Parent  ac4f0c58f4c771267f1b5c65a8cf5bf2722a881b
+[mq]: rename-execvpe
+
+diff --git a/src/solaris/native/java/lang/UNIXProcess_md.c b/src/solaris/native/java/lang/UNIXProcess_md.c
+--- openjdk/jdk/src/solaris/native/java/lang/UNIXProcess_md.c
++++ openjdk/jdk/src/solaris/native/java/lang/UNIXProcess_md.c
+@@ -423,9 +423,20 @@
+     return -1;
+ }
+ 
+-/* execvpe should have been included in the Unix standards. */
++/**
++ * 'execvpe' should have been included in the Unix standards,
++ * and is a GNU extension in glibc 2.10.
++ *
++ * JDK_execvpe is identical to execvp, except that the child environment is
++ * specified via the 3rd argument instead of being inherited from environ.
++ *
++ * This implementation of JDK_execvpe does not work if memory is shared
++ * with the parent, when using vfork(2), or clone(2) with CLONE_VM.
++ */
+ static int
+-execvpe(const char *file, const char *const argv[], const char *const envp[])
++JDK_execvpe(const char *file,
++            const char *const argv[],
++            const char *const envp[])
+ {
+     /* This is one of the rare times it's more portable to declare an
+      * external symbol explicitly, rather than via a system header.
+@@ -601,7 +612,7 @@
+         if (fcntl(FAIL_FILENO, F_SETFD, FD_CLOEXEC) == -1)
+             goto WhyCantJohnnyExec;
+ 
+-        execvpe(argv[0], argv, envv);
++        JDK_execvpe(argv[0], argv, envv);
+ 
+     WhyCantJohnnyExec:
+         /* We used to go to an awful lot of trouble to predict whether the