libunwind: update to 1.3.1.

srcpkgs/libunwind/patches/x86_64-mincore.patch

@@ -1,71 +0,0 @@
-From bc8698fd7ed13a629a8ec3cb2a89bd74f9d8b5c0 Mon Sep 17 00:00:00 2001
-From: Giuseppe Ottaviano <ott@fb.com>
-Date: Sun, 20 Mar 2016 00:28:03 +0000
-Subject: [PATCH] x86_64: fix mincore_validate
-
-The detection logic introduced in 28f33c8ce0b654cf31d6beda9a612870662f3c56 is
-broken, because it tests mincore using an address that is almost certainly not
-page-aligned. straces confirms that msync is used all the time.
-
-This patch fixes the logic by page-aligning the test pointer. strace now shows
-that mincore is actually used. Furthermore, the return value of mincore is not
-sufficient to assess whether the address can be safely dereferenced: we should
-also check that the pages are mapped, through the passed mvec array. This patch
-also adds this verification.
-
-Tested on a system where unwinding a stack across a JNI boundary would cause
-sporadic segfaults; no more crashes were observed after the patch.
----
- src/x86_64/Ginit.c | 24 ++++++++++++++++++++++--
- 1 file changed, 22 insertions(+), 2 deletions(-)
-
---- src/x86_64/Ginit.c
-+++ src/x86_64/Ginit.c
-@@ -30,6 +30,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
- #include <config.h>
- #endif
- 
-+#include <errno.h>
- #include <stdlib.h>
- #include <string.h>
- #include <sys/mman.h>
-@@ -81,7 +82,21 @@ static int msync_validate (void *addr, size_t len)
- static int mincore_validate (void *addr, size_t len)
- {
-   unsigned char mvec[2]; /* Unaligned access may cross page boundary */
--  return mincore (addr, len, mvec);
-+  size_t i;
-+
-+  /* mincore could fail with EAGAIN but we conservatively return -1
-+     instead of looping. */
-+  if (mincore (addr, len, mvec) != 0)
-+    {
-+      return -1;
-+    }
-+
-+  for (i = 0; i < (len + PAGE_SIZE - 1) / PAGE_SIZE; i++)
-+    {
-+      if (!(mvec[i] & 1)) return -1;
-+    }
-+
-+  return 0;
- }
- #endif
- 
-@@ -94,7 +109,12 @@ tdep_init_mem_validate (void)
- {
- #ifdef HAVE_MINCORE
-   unsigned char present = 1;
--  if (mincore (&present, 1, &present) == 0)
-+  unw_word_t addr = PAGE_START((unw_word_t)&present);
-+  unsigned char mvec[1];
-+  int ret;
-+  while ((ret = mincore ((void*)addr, PAGE_SIZE, mvec)) == -1 &&
-+         errno == EAGAIN) {}
-+  if (ret == 0 && (mvec[0] & 1))
-     {
-       Debug(1, "using mincore to validate memory\n");
-       mem_validate_func = mincore_validate;
--- 
-cgit v1.0
-

srcpkgs/libunwind/template

@@ -1,6 +1,6 @@
 # Template file for 'libunwind'
 pkgname=libunwind
-version=1.2.1
+version=1.3.1
 revision=1
 build_style=gnu-configure
 hostmakedepends="libtool automake"
@@ -8,9 +8,9 @@ makedepends="liblzma-devel"
 short_desc="Library to determine the call-chain of a program"
 maintainer="Juan RP <xtraeme@voidlinux.org>"
 license="MIT"
-homepage="http://www.nongnu.org/libunwind/"
-distfiles="http://download.savannah.gnu.org/releases/$pkgname/$pkgname-${version/rc/-rc}.tar.gz"
-checksum=3f3ecb90e28cbe53fba7a4a27ccce7aad188d3210bb1964a923a731a27a75acb
+homepage="https://www.nongnu.org/libunwind/"
+distfiles="${NONGNU_SITE}/${pkgname}/${pkgname}-${version/rc/-rc}.tar.gz"
+checksum=43997a3939b6ccdf2f669b50fdb8a4d3205374728c2923ddc2354c65260214f8
 
 pre_configure() {
 	sed -i /SUBDIRS/s/tests// Makefile.am