[compiler-rt] r242539 - compiler-rt: add support for mingw-w64 in builtins
Reid Kleckner
reid at kleckner.net
Fri Jul 17 09:23:05 PDT 2015
Author: rnk
Date: Fri Jul 17 11:23:05 2015
New Revision: 242539
URL: http://llvm.org/viewvc/llvm-project?rev=242539&view=rev
Log:
compiler-rt: add support for mingw-w64 in builtins
The is so that we can avoid using libgcc and use compiler-rt with
mingw-w64.
Related driver patch
http://reviews.llvm.org/D11077
I have tested this with mingw-w64 and everything seems to be in order.
I also sent this patch to the mingw-w64 mailing list for them to look at.
Patch by Martell Malone.
Differential Revision: http://reviews.llvm.org/D11085
Modified:
compiler-rt/trunk/CMakeLists.txt
compiler-rt/trunk/lib/builtins/CMakeLists.txt
compiler-rt/trunk/lib/builtins/enable_execute_stack.c
Modified: compiler-rt/trunk/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/CMakeLists.txt?rev=242539&r1=242538&r2=242539&view=diff
==============================================================================
--- compiler-rt/trunk/CMakeLists.txt (original)
+++ compiler-rt/trunk/CMakeLists.txt Fri Jul 17 11:23:05 2015
@@ -164,7 +164,7 @@ set(COMPILER_RT_BINARY_DIR ${CMAKE_CURRE
# We support running instrumented tests when we're not cross compiling
# and target a UNIX-like system or Windows.
# We can run tests on Android even when we are cross-compiling.
-if(("${CMAKE_HOST_SYSTEM}" STREQUAL "${CMAKE_SYSTEM}" AND (UNIX OR MSVC)) OR ANDROID
+if(("${CMAKE_HOST_SYSTEM}" STREQUAL "${CMAKE_SYSTEM}" AND (UNIX OR WIN32)) OR ANDROID
OR COMPILER_RT_EMULATOR)
option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" ON)
else()
Modified: compiler-rt/trunk/lib/builtins/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/builtins/CMakeLists.txt?rev=242539&r1=242538&r2=242539&view=diff
==============================================================================
--- compiler-rt/trunk/lib/builtins/CMakeLists.txt (original)
+++ compiler-rt/trunk/lib/builtins/CMakeLists.txt Fri Jul 17 11:23:05 2015
@@ -154,6 +154,12 @@ set(x86_64_SOURCES
x86_64/floatundixf.S
${GENERIC_SOURCES})
+if(WIN32)
+ set(x86_64_SOURCES
+ ${x86_64_SOURCES}
+ x86_64/chkstk.S)
+endif()
+
set(i386_SOURCES
i386/ashldi3.S
i386/ashrdi3.S
@@ -171,6 +177,12 @@ set(i386_SOURCES
i386/umoddi3.S
${GENERIC_SOURCES})
+if(WIN32)
+ set(i386_SOURCES
+ ${i386_SOURCES}
+ i386/chkstk.S)
+endif()
+
set(i686_SOURCES
${i386_SOURCES})
@@ -260,7 +272,7 @@ set(arm_SOURCES
add_custom_target(builtins)
-if (NOT WIN32)
+if (NOT WIN32 OR MINGW)
foreach (arch x86_64 i386 i686 arm)
if (CAN_TARGET_${arch})
# Filter out generic versions of routines that are re-implemented in
Modified: compiler-rt/trunk/lib/builtins/enable_execute_stack.c
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/builtins/enable_execute_stack.c?rev=242539&r1=242538&r2=242539&view=diff
==============================================================================
--- compiler-rt/trunk/lib/builtins/enable_execute_stack.c (original)
+++ compiler-rt/trunk/lib/builtins/enable_execute_stack.c Fri Jul 17 11:23:05 2015
@@ -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
}
More information about the llvm-commits
mailing list