linamh/sys-libs/glibc/files/2.3.3/glibc-2.3.3-dl_execstack-PaX-support.patch

--- glibc-2.3.3/sysdeps/unix/sysv/linux/dl-execstack.c	2003-12-13 15:42:16.853396224 +0200
+++ glibc-2.3.3.PaX/sysdeps/unix/sysv/linux/dl-execstack.c	2003-12-13 15:42:25.290113648 +0200
@@ -47,11 +47,17 @@
 		      PROT_READ|PROT_WRITE|PROT_EXEC|PROT_GROWSDOWN) == 0)
 	goto return_success;
 #  if __ASSUME_PROT_GROWSUPDOWN == 0
-      if (errno == EINVAL)
+      if (errno == EINVAL) {
 	no_growsdown = true;
-      else
+      } else {
+#  endif
+	if (errno == EACCES)		/* PAX is enabled */
+	  return 0;
+	else
+	  return errno;
+#  if __ASSUME_PROT_GROWSUPDOWN == 0
+      }
 #  endif
-	return errno;
     }
 # endif
 
@@ -73,8 +79,11 @@
 	page -= size;
       else
 	{
-	  if (errno != ENOMEM)	/* Unexpected failure mode.  */
+	  if (errno == EACCES) {	/* PAX is enabled */
+	    return 0;
+	  } else if (errno != ENOMEM) {	/* Unexpected failure mode.  */
 	    return errno;
+	  }
 
 	  if (size == GL(dl_pagesize))
 	    /* We just tried to mprotect the top hole page and failed.
@@ -105,11 +114,17 @@
 		      PROT_READ|PROT_WRITE|PROT_EXEC|PROT_GROWSUP) == 0)
 	goto return_success;
 #  if __ASSUME_PROT_GROWSUPDOWN == 0
-      if (errno == EINVAL)
+      if (errno == EINVAL) {
 	no_growsup = true;
-      else
+      } else {
+#  endif
+	if (errno == EACCES)		/* PAX is enabled */
+	  return 0;
+	else
+	  return errno;
+#  if __ASSUME_PROT_GROWSUPDOWN == 0
+      }
 #  endif
-	return errno;
     }
 # endif
 
@@ -130,8 +145,11 @@
 	page += size;
       else
 	{
-	  if (errno != ENOMEM)	/* Unexpected failure mode.  */
+	  if (errno == EACCES) {	/* PAX is enabled */
+	    return 0;
+	  } else if (errno != ENOMEM) {	/* Unexpected failure mode.  */
 	    return errno;
+	  }
 
 	  if (size == GL(dl_pagesize))
 	    /* We just tried to mprotect the lowest hole page and failed.