1 files changed, 0 insertions, 79 deletions
diff --git a/dev-python/cffi/files/issue177_prot_exec.patch b/dev-python/cffi/files/issue177_prot_exec.patch
deleted file mode 100644
index 8dbcf07c0052..000000000000
--- a/dev-python/cffi/files/issue177_prot_exec.patch
+++ /dev/null
@@ -1,79 +0,0 @@
-# HG changeset patch
-# User Armin Rigo <arigo@tunes.org>
-# Date 1424942568 -3600
-# Node ID c7edb1e84eb3c29cac0674790cb4efcbcf1683b2
-# Parent  95e0563201602a2e1a8d83cc95a6a70048dfeece
-issue #177: workaround for some Linux kernels
-
-diff --git a/c/malloc_closure.h b/c/malloc_closure.h
---- a/c/malloc_closure.h
-+++ b/c/malloc_closure.h
-@@ -14,6 +14,54 @@
- # endif
- #endif
- 
-+/* On PaX enable kernels that have MPROTECT enable we can't use PROT_EXEC.
-+
-+   This is, apparently, an undocumented change to ffi_prep_closure():
-+   depending on the Linux kernel we're running on, we must give it a
-+   mmap that is either PROT_READ|PROT_WRITE|PROT_EXEC or only
-+   PROT_READ|PROT_WRITE.  In the latter case, just trying to obtain a
-+   mmap with PROT_READ|PROT_WRITE|PROT_EXEC would kill our process(!),
-+   but in that situation libffi is fine with only PROT_READ|PROT_WRITE.
-+   There is nothing in the libffi API to know that, though, so we have
-+   to guess by parsing /proc/self/status.  "Meh."
-+ */
-+#ifdef __linux__
-+#include <stdlib.h>
-+
-+static int emutramp_enabled = -1;
-+
-+static int
-+emutramp_enabled_check (void)
-+{
-+    char *buf = NULL;
-+    size_t len = 0;
-+    FILE *f;
-+    int ret;
-+    f = fopen ("/proc/self/status", "r");
-+    if (f == NULL)
-+        return 0;
-+    ret = 0;
-+
-+    while (getline (&buf, &len, f) != -1)
-+        if (!strncmp (buf, "PaX:", 4))
-+            {
-+                char emutramp;
-+                if (sscanf (buf, "%*s %*c%c", &emutramp) == 1)
-+                    ret = (emutramp == 'E');
-+                break;
-+            }
-+    free (buf);
-+    fclose (f);
-+    return ret;
-+}
-+
-+#define is_emutramp_enabled() (emutramp_enabled >= 0 ? emutramp_enabled \
-+        : (emutramp_enabled = emutramp_enabled_check ()))
-+#else
-+#define is_emutramp_enabled() 0
-+#endif
-+
-+
- /* 'allocate_num_pages' is dynamically adjusted starting from one
-    page.  It grows by a factor of PAGE_ALLOCATION_GROWTH_RATE.  This is
-    meant to handle both the common case of not needing a lot of pages,
-@@ -77,9 +125,12 @@
-     if (item == NULL)
-         return;
- #else
-+    int prot = PROT_READ | PROT_WRITE | PROT_EXEC;
-+    if (is_emutramp_enabled ())
-+        prot &= ~PROT_EXEC;
-     item = (union mmaped_block *)mmap(NULL,
-                         allocate_num_pages * _pagesize,
--                        PROT_READ | PROT_WRITE | PROT_EXEC,
-+                        prot,
-                         MAP_PRIVATE | MAP_ANONYMOUS,
-                         -1,
-                         0);