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libc:xtensa: move syscall to swint call

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Signed-off-by: zhuyanlin <zhuyanlin1@xiaomi.com>
This commit is contained in:
zhuyanlin 2022-03-14 11:50:23 +08:00 committed by Abdelatif Guettouche
parent b99ba04a8c
commit 38f8032e31
1 changed files with 6 additions and 2 deletions
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8
libs/libc/machine/xtensa/arch_setjmp.S
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@ -26,6 +26,8 @@
#include <arch/chip/core-isa.h>
#include <arch/xtensa/xtensa_abi.h>
#include <arch/syscall.h>
/****************************************************************************
* Public Functions
****************************************************************************/
@ -127,8 +129,10 @@ setjmp:
/* Flush registers. */
mov a4, a2 # save a2 (jmp_buf)
movi a2, 0
syscall
movi a2, SYS_flush_context
movi a3, XCHAL_SWINT_CALL
wsr a3, intset
isync
mov a2, a4 # restore a2
/* Copy the register save area at (sp - 16). */