Changeset 2920 for trunk/src/kWorker/kWorker.c

Timestamp:

Sep 15, 2016, 4:15:21 PM (9 years ago)

Author:

bird

Message:

kWorker: small executable

File:

• trunk/src/kWorker/kWorker.c (modified) (2 diffs)

trunk/src/kWorker/kWorker.c

@@ -787 +787 @@
 
 /** Create a larget BSS blob that with help of /IMAGEBASE:0x10000 should
- * cover the default executable link address of 0x400000. */
-#pragma section("DefLdBuf", write, execute, read)
-__declspec(allocate("DefLdBuf"))
+ * cover the default executable link address of 0x400000.
+ * @remarks Early main() makes it read+write+executable.  Attempts as having
+ *          it as a separate section failed because the linker insists on
+ *          writing out every zero in the uninitialized section, resulting in
+ *          really big binaries. */
+__declspec(align(0x1000))
 static KU8          g_abDefLdBuf[16*1024*1024];
 
@@ -8783 +8786 @@
         kFsCacheSetupCustomRevisionForTree(g_pFsCache, kFsCacheLookupA(g_pFsCache, pszTmp, &enmIgnored));
 
+    /*
+     * Make g_abDefLdBuf executable.
+     */
+    if (!VirtualProtect(g_abDefLdBuf, sizeof(g_abDefLdBuf), PAGE_EXECUTE_READWRITE, &dwType))
+        return kwErrPrintfRc(3, "VirtualProtect(%p, %#x, PAGE_EXECUTE_READWRITE,NULL) failed: %u\n",
+                             g_abDefLdBuf, sizeof(g_abDefLdBuf), GetLastError());
+
 #ifdef WITH_CONSOLE_OUTPUT_BUFFERING
     /*