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arch: riscv: only use z_riscv_fatal_error_csf if CONFIG_EXCEPTION_DEBUG

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Use `z_riscv_fatal_error_csf` that expects the
callee-saved-registers pointer only if `CONFIG_EXCEPTION_DEBUG`
is enabled, otherwise use `z_riscv_fatal_error`, as there can
be garbage in the `a2`.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>
This commit is contained in:
Yong Cong Sin 2024-05-02 22:18:58 +08:00 committed by Alberto Escolar
parent 6a0cdb4eaa
commit b32c5e2a60
1 changed files with 8 additions and 1 deletions
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9
arch/riscv/core/isr.S
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@ -78,7 +78,12 @@ GTEXT(__soc_save_context)
GTEXT(__soc_restore_context)
#endif /* CONFIG_RISCV_SOC_CONTEXT_SAVE */
#ifdef CONFIG_EXCEPTION_DEBUG
GTEXT(z_riscv_fatal_error_csf)
#else
GTEXT(z_riscv_fatal_error)
#endif /* CONFIG_EXCEPTION_DEBUG */
GTEXT(z_get_next_switch_handle)
GTEXT(z_riscv_switch)
GTEXT(z_riscv_thread_start)
@ -411,9 +416,11 @@ do_fault:
/* Save callee-saved registers to be passed as 3rd arg */
STORE_CALLEE_SAVED() ;
mv a2, sp
#endif
tail z_riscv_fatal_error_csf
#else
tail z_riscv_fatal_error
#endif
#if defined(CONFIG_IRQ_OFFLOAD)
do_irq_offload: