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[CRT]

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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.

svn path=/trunk/; revision=67729
This commit is contained in:
Timo Kreuzer 2015-05-14 21:52:45 +00:00
parent 2f20d0b140
commit febee0a7a2
1 changed files with 7 additions and 5 deletions
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12
reactos/lib/sdk/crt/setjmp/arm/setjmp.s
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@ -12,14 +12,13 @@
/* CODE **********************************************************************/ /* CODE **********************************************************************/
TEXTAREA TEXTAREA
LEAF_ENTRY _setjmp LEAF_ENTRY _setjmpex
mov r1, sp
/* Store r1 (->Frame) and r4 - r11 */ /* Store r1 (->Frame) and r4 - r11 */
stmia r0!, {r1,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} stmia r0!, {r1,lr,fp}
/* Store NEON registers */ /* Store NEON registers */
@ -35,7 +34,10 @@
/* Return 0 */ /* Return 0 */
mov r0, #0 mov r0, #0
bx lr bx lr
LEAF_END _setjmp LEAF_END _setjmpex
IMPORT _setjmp, WEAK _setjmpex
IMPORT setjmp, WEAK _setjmpex
LEAF_ENTRY longjmp LEAF_ENTRY longjmp