make source & tests compile on osx

Makefile

@@ -19,8 +19,7 @@ endef
 
 CPPFLAGS := $(CPPFLAGS) -D_GNU_SOURCE -I include
 SHARED_FLAGS := -O3 -flto -fPIC -fvisibility=hidden -fno-plt \
-    $(call safe_flag,-fstack-clash-protection) -fstack-protector-strong -pipe -Wall -Wextra \
+    $(call safe_flag,-Wcast-align) -Wcast-qual -Wwrite-strings
-    $(call safe_flag,-Wcast-align=strict,-Wcast-align) -Wcast-qual -Wwrite-strings
 
 ifeq ($(CONFIG_WERROR),true)
     SHARED_FLAGS += -Werror
@@ -32,7 +31,8 @@ endif
 
 CFLAGS := $(CFLAGS) -std=c11 $(SHARED_FLAGS) -Wmissing-prototypes
 CXXFLAGS := $(CXXFLAGS) -std=c++17 $(SHARED_FLAGS)
-LDFLAGS := $(LDFLAGS) -Wl,--as-needed,-z,defs,-z,relro,-z,now,-z,nodlopen,-z,text
+
+LDFLAGS := $(LDFLAGS) -Wl
 
 SOURCES := chacha.c h_malloc.c memory.c pages.c random.c util.c
 OBJECTS := $(SOURCES:.c=.o)
@@ -40,7 +40,7 @@ OBJECTS := $(SOURCES:.c=.o)
 ifeq ($(CONFIG_CXX_ALLOCATOR),true)
     # make sure LTO is compatible in case CC and CXX don't match (such as clang and g++)
     CXX := $(CC)
-    LDLIBS += -lstdc++ -lgcc_s
+    LDLIBS += -lstdc++
 
     SOURCES += new.cc
     OBJECTS += new.o

config/default.mk

@@ -1,5 +1,5 @@
 CONFIG_WERROR := true
-CONFIG_NATIVE := true
+CONFIG_NATIVE := false
 CONFIG_CXX_ALLOCATOR := true
 CONFIG_UBSAN := false
 CONFIG_SEAL_METADATA := false

h_malloc.c

@@ -6,10 +6,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <threads.h>
 
-#include <malloc.h>
 #include <pthread.h>
+
 #include <unistd.h>
 
 #include "third_party/libdivide.h"
@@ -61,8 +60,9 @@ static_assert(N_ARENA <= 256, "maximum number of arenas is currently 256");
 #define CACHELINE_SIZE 64
 
 #if N_ARENA > 1
-__attribute__((tls_model("initial-exec")))
+// use -ftls-model flag for now
-static thread_local unsigned thread_arena = N_ARENA;
+//__attribute__((tls_model("initial-exec"))) 
+static __thread unsigned thread_arena = N_ARENA;
 static atomic_uint thread_arena_counter = 0;
 #else
 static const unsigned thread_arena = 0;

include/h_malloc.h

@@ -3,8 +3,6 @@
 
 #include <stdio.h>
 
-#include <malloc.h>
-
 #ifdef __cplusplus
 extern "C" {
 #endif

memory.c

@@ -1,7 +1,6 @@
 #include <errno.h>
 
 #include <sys/mman.h>
-#include <sys/prctl.h>
 
 #ifndef PR_SET_VMA
 #define PR_SET_VMA 0x53564d41

new.cc

@@ -1,4 +1,3 @@
-#include <bits/functexcept.h>
 #include <new>
 
 #include "h_malloc.h"

random.c

@@ -12,7 +12,11 @@ static void get_random_seed(void *buf, size_t size) {
         ssize_t r;
 
         do {
-            r = getrandom(buf, size, 0);
+            #ifdef __APPLE__ 
+                r = getentropy(buf, size);
+            #else
+                r = getrandom(buf, size, 0);
+            #endif
         } while (r == -1 && errno == EINTR);
 
         if (r <= 0) {

test/Makefile

@@ -9,8 +9,6 @@ ifeq (,$(filter $(CONFIG_SLAB_CANARY),true false))
     $(error CONFIG_SLAB_CANARY must be true or false)
 endif
 
-LDLIBS := -lpthread
-
 CPPFLAGS += \
     -DSLAB_CANARY=$(CONFIG_SLAB_CANARY) \
     -DCONFIG_EXTENDED_SIZE_CLASSES=$(CONFIG_EXTENDED_SIZE_CLASSES)

test/mallinfo.c

@@ -1,6 +1,5 @@
 #include <stdio.h>
-
+#include <stdlib.h>
-#include <malloc.h>
 
 #include "test_util.h"
 

test/mallinfo2.c

@@ -1,6 +1,5 @@
 #include <stdio.h>
-
+#include <stdlib.h>
-#include <malloc.h>
 
 #include "test_util.h"
 

test/malloc_info.c

@@ -1,7 +1,6 @@
 #include <pthread.h>
 #include <stdio.h>
-
+#include <stdlib.h>
-#include <malloc.h>
 
 #include "test_util.h"
 #include "../util.h"

test/simple-memory-corruption/impossibly_large_malloc.c

@@ -1,4 +1,4 @@
-#include <malloc.h>
+#include <stdlib.h>
 #include <stddef.h>
 
 #include "../test_util.h"

test/simple-memory-corruption/invalid_malloc_object_size_small.c

@@ -1,4 +1,4 @@
-#include <malloc.h>
+#include <stdlib.h>
 
 #include "../test_util.h"
 

test/simple-memory-corruption/invalid_malloc_object_size_small_quarantine.c

@@ -1,4 +1,4 @@
-#include <malloc.h>
+#include <stdlib.h>
 
 #include "../test_util.h"
 

test/simple-memory-corruption/invalid_malloc_usable_size_small.c

@@ -1,4 +1,5 @@
-#include <malloc.h>
+#include <malloc/malloc.h>
+#include <stdlib.h>
 
 #include "../test_util.h"
 
@@ -8,6 +9,6 @@ OPTNONE int main(void) {
         return 1;
     }
     char *q = p + 4096 * 4;
-    malloc_usable_size(q);
+    malloc_size(q);
     return 0;
 }

test/simple-memory-corruption/invalid_malloc_usable_size_small_quarantine.c

@@ -1,4 +1,5 @@
-#include <malloc.h>
+#include <malloc/malloc.h>
+#include <stdlib.h>
 
 #include "../test_util.h"
 
@@ -8,6 +9,6 @@ OPTNONE int main(void) {
         return 1;
     }
     free(p);
-    malloc_usable_size(p);
+    malloc_size(p);
     return 0;
 }

test/simple-memory-corruption/malloc_object_size.c

@@ -1,5 +1,5 @@
 #include <stdbool.h>
-#include <malloc.h>
+#include <stdlib.h>
 
 #include "../test_util.h"
 

test/simple-memory-corruption/malloc_object_size_offset.c

@@ -1,5 +1,5 @@
 #include <stdbool.h>
-#include <malloc.h>
+#include <stdlib.h>
 
 #include "../test_util.h"
 

test/simple-memory-corruption/overflow_large_1_byte.c

@@ -1,4 +1,3 @@
-#include <malloc.h>
 #include <stdlib.h>
 
 #include "../test_util.h"
@@ -8,7 +7,7 @@ OPTNONE int main(void) {
     if (!p) {
         return 1;
     }
-    size_t size = malloc_usable_size(p);
+    size_t size = malloc_size(p);
     *(p + size) = 0;
     free(p);
     return 0;

test/simple-memory-corruption/overflow_large_8_byte.c

@@ -1,4 +1,4 @@
-#include <malloc.h>
+#include <malloc/malloc.h>
 #include <stdlib.h>
 
 #include "../test_util.h"
@@ -8,7 +8,7 @@ OPTNONE int main(void) {
     if (!p) {
         return 1;
     }
-    size_t size = malloc_usable_size(p);
+    size_t size = malloc_size(p);
     *(p + size + 7) = 0;
     free(p);
     return 0;

test/simple-memory-corruption/overflow_small_1_byte.c

@@ -1,4 +1,4 @@
-#include <malloc.h>
+#include <malloc/malloc.h>
 #include <stdlib.h>
 
 #include "../test_util.h"
@@ -8,7 +8,7 @@ OPTNONE int main(void) {
     if (!p) {
         return 1;
     }
-    size_t size = malloc_usable_size(p);
+    size_t size = malloc_size(p);
     *(p + size) = 1;
     free(p);
     return 0;

test/simple-memory-corruption/overflow_small_8_byte.c

@@ -1,4 +1,4 @@
-#include <malloc.h>
+#include <malloc/malloc.h>
 #include <stdlib.h>
 
 #include "../test_util.h"
@@ -8,7 +8,7 @@ OPTNONE int main(void) {
     if (!p) {
         return 1;
     }
-    size_t size = malloc_usable_size(p);
+    size_t size = malloc_size(p);
     // XOR is used to avoid the test having a 1/256 chance to fail
     *(p + size + 7) ^= 1;
     free(p);

test/simple-memory-corruption/string_overflow.c

@@ -2,7 +2,7 @@
 #include <stdio.h>
 #include <string.h>
 
-#include <malloc.h>
+#include <malloc/malloc.h>
 
 #include "../test_util.h"
 
@@ -12,7 +12,7 @@ OPTNONE int main(void) {
         return 1;
     }
 
-    size_t size = malloc_usable_size(p);
+    size_t size = malloc_size(p);
     memset(p, 'a', size);
     printf("overflow by %zu bytes\n", strlen(p) - size);
 

test/simple-memory-corruption/unaligned_malloc_usable_size_small.c

@@ -1,4 +1,5 @@
-#include <malloc.h>
+#include <malloc/malloc.h>
+#include <stdlib.h>
 
 #include "../test_util.h"
 
@@ -7,6 +8,6 @@ OPTNONE int main(void) {
     if (!p) {
         return 1;
     }
-    malloc_usable_size(p + 1);
+    malloc_size(p + 1);
     return 0;
 }

test/simple-memory-corruption/uninitialized_malloc_usable_size.c

@@ -1,8 +1,8 @@
-#include <malloc.h>
 
 #include "../test_util.h"
+#include <malloc/malloc.h>
 
 OPTNONE int main(void) {
-    malloc_usable_size((void *)1);
+    malloc_size((void *)1);
     return 0;
 }

util.h

@@ -25,8 +25,13 @@
 #define UNUSED __attribute__((unused))
 #define EXPORT __attribute__((visibility("default")))
 
+#define ALIAS(f) 
+
+#ifndef __APPLE__
 #define STRINGIFY(s) #s
 #define ALIAS(f) __attribute__((alias(STRINGIFY(f))))
+#endif
+
 
 static inline int ffzl(unsigned long x) {
     return __builtin_ffsl(~x);