From 7c980f5e9c2c9c6bc58a5bdbe4009458a38d9e84 Mon Sep 17 00:00:00 2001
From: Periklis Tsirakidis <periklis.tsirakidis@mayflower.de>
Date: Thu, 2 Mar 2017 15:19:45 +0100
Subject: [PATCH] valgrind: enable darwin build

---
 .../tools/analysis/valgrind/default.nix       | 27 ++++++++++++--
 .../analysis/valgrind/valgrind-bzero.patch    | 37 +++++++++++++++++++
 pkgs/top-level/all-packages.nix               |  5 ++-
 3 files changed, 64 insertions(+), 5 deletions(-)
 create mode 100644 pkgs/development/tools/analysis/valgrind/valgrind-bzero.patch

diff --git a/pkgs/development/tools/analysis/valgrind/default.nix b/pkgs/development/tools/analysis/valgrind/default.nix
index 2ecb5eaa132..80e3fdfc807 100644
--- a/pkgs/development/tools/analysis/valgrind/default.nix
+++ b/pkgs/development/tools/analysis/valgrind/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchpatch, perl, gdb }:
+{ stdenv, fetchurl, fetchpatch, perl, gdb, llvm, cctools, xnu, bootstrap_cmds }:
 
 stdenv.mkDerivation rec {
   name = "valgrind-3.12.0";
@@ -14,11 +14,13 @@ stdenv.mkDerivation rec {
 
   # Perl is needed for `cg_annotate'.
   # GDB is needed to provide a sane default for `--db-command'.
-  buildInputs = [ perl ] ++ stdenv.lib.optional (!stdenv.isDarwin) gdb;
+  buildInputs = [ perl gdb ]  ++ stdenv.lib.optionals (stdenv.isDarwin) [ bootstrap_cmds xnu ];
 
   enableParallelBuilding = true;
 
-  postPatch =
+  patches = stdenv.lib.optionals (stdenv.isDarwin) [ ./valgrind-bzero.patch ];
+
+  postPatch = stdenv.lib.optionalString (stdenv.isDarwin)
     # Apple's GCC doesn't recognize `-arch' (as of version 4.2.1, build 5666).
     ''
       echo "getting rid of the \`-arch' GCC option..."
@@ -27,6 +29,23 @@ stdenv.mkDerivation rec {
 
       sed -i coregrind/link_tool_exe_darwin.in \
           -e 's/^my \$archstr = .*/my $archstr = "x86_64";/g'
+
+      echo "substitute hardcoded /usr/include/mach with ${xnu}/include/mach"
+      substituteInPlace coregrind/Makefile.in \
+         --replace /usr/include/mach ${xnu}/include/mach
+
+      echo "substitute hardcoded dsymutil with ${llvm}/bin/llvm-dsymutil"
+      find -name "Makefile.in" | while read file; do
+         substituteInPlace "$file" \
+           --replace dsymutil ${llvm}/bin/llvm-dsymutil
+      done
+
+      substituteInPlace coregrind/m_debuginfo/readmacho.c \
+         --replace /usr/bin/dsymutil ${llvm}/bin/llvm-dsymutil
+
+      echo "substitute hardcoded /usr/bin/ld with ${cctools}/bin/ld"
+      substituteInPlace coregrind/link_tool_exe_darwin.in \
+        --replace /usr/bin/ld ${cctools}/bin/ld
     '';
 
   configureFlags =
@@ -58,6 +77,6 @@ stdenv.mkDerivation rec {
     license = stdenv.lib.licenses.gpl2Plus;
 
     maintainers = [ stdenv.lib.maintainers.eelco ];
-    platforms = stdenv.lib.platforms.linux;
+    platforms = stdenv.lib.platforms.unix;
   };
 }
diff --git a/pkgs/development/tools/analysis/valgrind/valgrind-bzero.patch b/pkgs/development/tools/analysis/valgrind/valgrind-bzero.patch
new file mode 100644
index 00000000000..f56a277ad71
--- /dev/null
+++ b/pkgs/development/tools/analysis/valgrind/valgrind-bzero.patch
@@ -0,0 +1,37 @@
+Index: coregrind/m_main.c
+===================================================================
+--- a/coregrind/m_main.c (revision 16102)
++++ b/coregrind/m_main.c (revision 16103)
+@@ -3489,6 +3489,10 @@
+     // skip check
+   return VG_(memset)(s,c,n);
+ }
++void __bzero(void* s, UWord n);
++void __bzero(void* s, UWord n) {
++    (void)VG_(memset)(s,0,n);
++}
+ void bzero(void *s, SizeT n);
+ void bzero(void *s, SizeT n) {
+     VG_(memset)(s,0,n);
+@@ -4058,20 +4062,7 @@
+ 
+ #endif
+ 
+-#if defined(VGO_darwin) && DARWIN_VERS == DARWIN_10_10
+ 
+-/* This might also be needed for > DARWIN_10_10, but I have no way
+-   to test for that.  Hence '==' rather than '>=' in the version
+-   test above. */
+-void __bzero ( void* s, UWord n );
+-void __bzero ( void* s, UWord n )
+-{
+-   (void) VG_(memset)( s, 0, n );
+-}
+-
+-#endif
+-
+-
+ /*--------------------------------------------------------------------*/
+ /*--- end                                                          ---*/
+ /*--------------------------------------------------------------------*/
+
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d98ce26aff4..dc3924c5829 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6862,7 +6862,10 @@ with pkgs;
 
   gdb-multitarget = lowPrio (gdb.override { multitarget = true; });
 
-  valgrind = callPackage ../development/tools/analysis/valgrind { };
+  valgrind = callPackage ../development/tools/analysis/valgrind {
+    inherit (darwin) xnu bootstrap_cmds cctools;
+    llvm = llvm_39;
+   };
 
   valkyrie = callPackage ../development/tools/analysis/valkyrie { };