[llvm-commits] [compiler-rt] r148048 - in /compiler-rt/trunk: lib/int_endianness.h test/Unit/clear_cache_test.c test/Unit/enable_execute_stack_test.c

[Anton Korobeynikov]

Author: asl
Date: Thu Jan 12 15:13:48 2012
New Revision: 148048

URL: http://llvm.org/viewvc/llvm-project?rev=148048&view=rev
Log:
Add some basic mingw support.

Patch by Ruben Van Boxem! 

Modified:
    compiler-rt/trunk/lib/int_endianness.h
    compiler-rt/trunk/test/Unit/clear_cache_test.c
    compiler-rt/trunk/test/Unit/enable_execute_stack_test.c

Modified: compiler-rt/trunk/lib/int_endianness.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/int_endianness.h?rev=148048&r1=148047&r2=148048&view=diff
==============================================================================
--- compiler-rt/trunk/lib/int_endianness.h (original)
+++ compiler-rt/trunk/lib/int_endianness.h Thu Jan 12 15:13:48 2012
@@ -80,6 +80,13 @@
 
 #endif /* GNU/Linux */
 
+#if defined(_WIN32)
+
+#define _YUGA_LITTLE_ENDIAN 1
+#define _YUGA_BIG_ENDIAN    0
+
+#endif /* Windows */
+
 /* . */
 
 #if !defined(_YUGA_LITTLE_ENDIAN) || !defined(_YUGA_BIG_ENDIAN)

Modified: compiler-rt/trunk/test/Unit/clear_cache_test.c
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/Unit/clear_cache_test.c?rev=148048&r1=148047&r2=148048&view=diff
==============================================================================
--- compiler-rt/trunk/test/Unit/clear_cache_test.c (original)
+++ compiler-rt/trunk/test/Unit/clear_cache_test.c Thu Jan 12 15:13:48 2012
@@ -11,11 +11,20 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdint.h>
+#if defined(_WIN32)
+#include <windows.h>
+void __clear_cache(void* start, void* end)
+{
+    if (!FlushInstructionCache(GetCurrentProcess(), start, end-start))
+        exit(1);
+}
+#else
 #include <sys/mman.h>
+extern void __clear_cache(void* start, void* end);
+#endif
 
 
 
-extern void __clear_cache(void* start, void* end);
 
 typedef int (*pfunc)(void);
 
@@ -38,21 +47,29 @@
     // make executable the page containing execution_buffer 
     char* start = (char*)((uintptr_t)execution_buffer & (-4095));
     char* end = (char*)((uintptr_t)(&execution_buffer[128+4096]) & (-4095));
-    if ( mprotect(start, end-start, PROT_READ|PROT_WRITE|PROT_EXEC) != 0 )
+#if defined(_WIN32)
+    DWORD dummy_oldProt;
+    MEMORY_BASIC_INFORMATION b;
+    if (!VirtualQuery(start, &b, sizeof(b)))
+        return 1;
+    if (!VirtualProtect(b.BaseAddress, b.RegionSize, PAGE_EXECUTE_READWRITE, &b.Protect))
+#else
+    if (mprotect(start, end-start, PROT_READ|PROT_WRITE|PROT_EXEC) != 0)
+#endif
         return 1;
 
     // verify you can copy and execute a function
     memcpy(execution_buffer, (void *)(uintptr_t)&func1, 128);
     __clear_cache(execution_buffer, &execution_buffer[128]);
     pfunc f1 = (pfunc)(uintptr_t)execution_buffer;
-    if ( (*f1)() != 1 )
+    if ((*f1)() != 1)
         return 1;
 
     // verify you can overwrite a function with another
     memcpy(execution_buffer, (void *)(uintptr_t)&func2, 128);
     __clear_cache(execution_buffer, &execution_buffer[128]);
     pfunc f2 = (pfunc)(uintptr_t)execution_buffer;
-    if ( (*f2)() != 2 )
+    if ((*f2)() != 2)
         return 1;
 
     return 0;

Modified: compiler-rt/trunk/test/Unit/enable_execute_stack_test.c
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/Unit/enable_execute_stack_test.c?rev=148048&r1=148047&r2=148048&view=diff
==============================================================================
--- compiler-rt/trunk/test/Unit/enable_execute_stack_test.c (original)
+++ compiler-rt/trunk/test/Unit/enable_execute_stack_test.c Thu Jan 12 15:13:48 2012
@@ -11,12 +11,27 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdint.h>
-#include <sys/mman.h>
-
-
+#if defined(_WIN32)
+#include <windows.h>
+void __clear_cache(void* start, void* end)
+{
+    if (!FlushInstructionCache(GetCurrentProcess(), start, end-start))
+        exit(1);
+}
+void __enable_execute_stack(void *addr)
+{
+    MEMORY_BASIC_INFORMATION b;
 
+    if (!VirtualQuery(addr, &b, sizeof(b)))
+        exit(1);
+    if (!VirtualProtect(b.BaseAddress, b.RegionSize, PAGE_EXECUTE_READWRITE, &b.Protect))
+        exit(1);
+}
+#else
+#include <sys/mman.h>
 extern void __clear_cache(void* start, void* end);
 extern void __enable_execute_stack(void* addr);
+#endif
 
 typedef int (*pfunc)(void);
 
@@ -43,14 +58,14 @@
     memcpy(execution_buffer, (void *)(uintptr_t)&func1, 128);
     __clear_cache(execution_buffer, &execution_buffer[128]);
     pfunc f1 = (pfunc)(uintptr_t)execution_buffer;
-    if ( (*f1)() != 1 )
+    if ((*f1)() != 1)
         return 1;
 
     // verify you can overwrite a function with another
     memcpy(execution_buffer, (void *)(uintptr_t)&func2, 128);
     __clear_cache(execution_buffer, &execution_buffer[128]);
     pfunc f2 = (pfunc)(uintptr_t)execution_buffer;
-    if ( (*f2)() != 2 )
+    if ((*f2)() != 2)
         return 1;
 
     return 0;