Changeset 3900 for branches/libc-0.6

Timestamp:

Oct 22, 2014, 10:26:07 PM (11 years ago)

Author:

bird

Message:

trunk+0.6: Load default FPU.CW value in crt0 to avoid getting bitten by DLLs messing it up during static DLL initialization.

File:

• branches/libc-0.6/src/emx/src/lib/startup/386/crt0.s (modified) (2 diffs)

branches/libc-0.6/src/emx/src/lib/startup/386/crt0.s

@@ -53 +53 @@
 __text:
 
+    /*
+     * Fix the FPU control word since it may have been perverted by
+     * statically imported DLLs.
+     */
+    fldcw   __crt0_fpucw
+
 #if !defined(NOFORK) && !defined(NOUNIX)
     /* Registering the fork module. If we're forking this call will not return. */
@@ -88 +94 @@
 1:  jmp     1b      /* Just in case exit() returns :-) */
 
+/** Initial FPU CW value. */
+    .align  2, 0xcc
+__crt0_fpucw:
+    .long   0x37f
 
     .data