Disabled magenta heap functions.

CMakeLists.txt

@@ -81,7 +81,7 @@ add_framework(Photon STATIC
     SOURCES ${photon_libc_sources} ${photon_libc_headers}
     HEADERS ${CMAKE_CURRENT_BINARY_DIR}/sysroot/usr/include/*)
 
-bundle_compile_options(Photon PRIVATE -ffreestanding -nostdlib -fPIC)
+bundle_compile_options(Photon PRIVATE -ffreestanding -nostdlib -fPIC -fPIE)
 bundle_link_libraries(Photon ${photon_platform_libs})
 bundle_link_frameworks(Photon ${photon_platform_frameworks})
 

photon/libc/sys/magenta/heap.c

@@ -13,6 +13,7 @@ static mx_handle_t heap_segment = MX_NULL_HANDLE;
 
 int __heap_init(struct __proc_start_info *info)
 {
+#if 0
     heap_start = (uintptr_t)info->heap_map_base;
     heap_end = (uintptr_t)info + sizeof(*info);
     ROUND_UP(heap_end, 0x1000);
@@ -21,12 +22,14 @@ int __heap_init(struct __proc_start_info *info)
     unsigned long sz = 0;
     mx_segment_get_size(heap_segment, &sz);
     heap_sz = sz;
+#endif
 
     return 0;
 }
 
 void *__extend_heap(size_t sz)
 {
+#if 0
     if (sz == 0) {
         return (void *)(heap_end + 1);
     }
@@ -39,4 +42,6 @@ void *__extend_heap(size_t sz)
     heap_sz += sz;
     heap_end += sz;
     return (void *)ret;
+#endif
+    return NULL;
 }