Changeset 6d123b3 in mainline for uspace/lib/c/arch/mips64/src/entryjmp.S

Timestamp:

2012-03-13T15:23:11Z (12 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

145d16f

Parents:

df366b5e

Message:

respect the o32 ABI when calling C functions from assembler and creating contexts
(thx Adam Hraska)

File:

• uspace/lib/c/arch/mips64/src/entryjmp.S (moved) (moved from uspace/lib/c/arch/mips32/src/entryjmp.s ) (3 diffs)

uspace/lib/c/arch/mips64/src/entryjmp.S

@@ -27 +27 @@
 #
 
+#include <libarch/stack.h>
+
 .text
 .section .text
@@ -34 +36 @@
 ## void entry_point_jmp(void *entry_point, void *pcb);
 #
-# $a0 (=$4)     contains entry_point
-# $a1 (=$5)     contains pcb
+# $a0 (=$4) contains entry_point
+# $a1 (=$5) contains pcb
 #
 # Jump to program entry point
@@ -41 +43 @@
 entry_point_jmp:
         # tmp := entry_point
-        move $25, $a0
-
+        move $t9, $a0
+        
         # Pass pcb to the entry point in $a0
         move $a0, $a1
-        jr $25
-        nop
-.end
+        
+        jr $t9
+        addiu $sp, -ABI_STACK_FRAME
+        addiu $sp, ABI_STACK_FRAME
+.end entry_point_jmp