Fix profile feedback with -jN and add profile-fast

diff --git a/git-compat-util.h b/git-compat-util.h
index b6f03b36dc762b891e77a5ca44e7ca5f270c5af9..01e8695a2db88cb6fa1c80bde7a9740e6996c4c5 100644 (file)
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -291,10 +291,12 @@ extern char *gitbasename(char *);
 #else
 #define NORETURN
 #define NORETURN_PTR
+#ifndef __GNUC__
 #ifndef __attribute__
 #define __attribute__(x)
 #endif
 #endif
+#endif
 
 /* The sentinel attribute is valid from gcc version 4.0 */
 #if defined(__GNUC__) && (__GNUC__ >= 4)
@@ -685,6 +687,17 @@ void git_qsort(void *base, size_t nmemb, size_t size,
 #endif
 #endif
 
+#if defined(__GNUC__) && defined(__x86_64__)
+#include <emmintrin.h>
+/*
+ * This is the system memory page size; it's used so that we can read
+ * outside the bounds of an allocation without segfaulting.
+ */
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096
+#endif
+#endif
+
 #ifdef UNRELIABLE_FSTAT
 #define fstat_is_reliable() 0
 #else