diff options
Diffstat (limited to 'lib/builtins/enable_execute_stack.c')
| -rw-r--r-- | lib/builtins/enable_execute_stack.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/builtins/enable_execute_stack.c b/lib/builtins/enable_execute_stack.c index 63d836b31..23e494051 100644 --- a/lib/builtins/enable_execute_stack.c +++ b/lib/builtins/enable_execute_stack.c @@ -10,7 +10,9 @@ #include "int_lib.h" +#ifndef _WIN32 #include <sys/mman.h> +#endif /* #include "config.h" * FIXME: CMake - include when cmake system is ready. @@ -18,9 +20,14 @@ */ #define HAVE_SYSCONF 1 +#ifdef _WIN32 +#include <windef.h> +#include <winbase.h> +#else #ifndef __APPLE__ #include <unistd.h> #endif /* __APPLE__ */ +#endif /* _WIN32 */ #if __LP64__ #define TRAMPOLINE_SIZE 48 @@ -40,6 +47,12 @@ COMPILER_RT_ABI void __enable_execute_stack(void* addr) { +#if _WIN32 + MEMORY_BASIC_INFORMATION mbi; + if (!VirtualQuery (addr, &mbi, sizeof(mbi))) + return; /* We should probably assert here because there is no return value */ + VirtualProtect (mbi.BaseAddress, mbi.RegionSize, PAGE_EXECUTE_READWRITE, &mbi.Protect); +#else #if __APPLE__ /* On Darwin, pagesize is always 4096 bytes */ const uintptr_t pageSize = 4096; @@ -55,4 +68,5 @@ __enable_execute_stack(void* addr) unsigned char* endPage = (unsigned char*)((p+TRAMPOLINE_SIZE+pageSize) & pageAlignMask); size_t length = endPage - startPage; (void) mprotect((void *)startPage, length, PROT_READ | PROT_WRITE | PROT_EXEC); +#endif } |