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arch/x86_64:Resolve the issue of abnormal interrupt numbers triggered when KASAN is enabled

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When assembly code calls a C function, it needs to save the context. After enabling KASAN, the inserted __asan_load8_noabort function uses the rsi register, causing the value of rsi in the interrupt handler to be modified, which results in an incorrect interrupt number.

Signed-off-by: liwenxiang1 <liwenxiang1@xiaomi.com>
This commit is contained in:
liwenxiang1
2024-12-25 19:28:03 +08:00
committed by Mateusz Szafoni
parent 351db57e35
commit 2454c2b76d
1 changed files with 1 additions and 0 deletions
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arch/x86_64/src/intel64/intel64_handlers.c
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@@ -190,6 +190,7 @@ uint64_t *irq_handler(uint64_t *regs, uint64_t irq_no)
* *
****************************************************************************/ ****************************************************************************/
nosanitize_address
uint64_t *irq_xcp_regs(void) uint64_t *irq_xcp_regs(void)
{ {
/* This must be the simplest as possible, so we not use too much registers. /* This must be the simplest as possible, so we not use too much registers.