[ros-diffs] [tkreuzer] 67729: [CRT] setjmp is a macro expanding to _setjmp or _setjmpex. In soviet russia and on ARM builds, the compiler will convert invocation of _setjmp back into a call to setjmp. The comp...

Author: tkreuzer
Date: Thu May 14 21:52:45 2015
New Revision: 67729

URL: http://svn.reactos.org/svn/reactos?rev=67729&view=rev
Log:
[CRT]
setjmp is a macro expanding to _setjmp or _setjmpex. In soviet russia and on ARM builds,
the compiler will convert invocation of _setjmp back into a call to setjmp. The compiler
handles _setjmp and _setjmpex in the same way, generating code where r0 points to the
jump_buf and r1 points to the current functions stack frame (sp on function entry). So
make setjmp and _setjmp aliases to _setjmpex and make the latter use r1.

Modified:
    trunk/reactos/lib/sdk/crt/setjmp/arm/setjmp.s

Modified: trunk/reactos/lib/sdk/crt/setjmp/arm/setjmp.s
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/sdk/crt/setjmp/arm/set…
==============================================================================
--- trunk/reactos/lib/sdk/crt/setjmp/arm/setjmp.s	[iso-8859-1] (original)
+++ trunk/reactos/lib/sdk/crt/setjmp/arm/setjmp.s	[iso-8859-1] Thu May 14 21:52:45 2015
@@ -12,14 +12,13 @@
 /* CODE **********************************************************************/
     TEXTAREA
 
-    LEAF_ENTRY _setjmp
-
-    mov r1, sp
+    LEAF_ENTRY _setjmpex
 
     /* Store r1 (->Frame) and r4 - r11 */
     stmia r0!, {r1,r4-r11}
 
-    /* Store r1 (->Sp), lr (->Pc), fp (->Fpscr) */
+    /* Store sp (->Sp), lr (->Pc), fp (->Fpscr) */
+    mov r1, sp
     stmia r0!, {r1,lr,fp}
 
     /* Store NEON registers */
@@ -35,7 +34,10 @@
     /* Return 0 */
     mov r0, #0
     bx lr
-    LEAF_END _setjmp
+    LEAF_END _setjmpex
+
+    IMPORT _setjmp, WEAK _setjmpex
+    IMPORT setjmp, WEAK _setjmpex
 
     LEAF_ENTRY longjmp