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riscv: support dumping privilege stack during coredump

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Adds some bits to enable dumping privilege stack during
coredump.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2024-09-18 09:32:49 -07:00 committed by Henrik Brix Andersen
parent 4c5e33b2c2
commit 2c551554e2
2 changed files with 20 additions and 0 deletions
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1
arch/Kconfig
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@ -115,6 +115,7 @@ config RISCV
bool
select ARCH_IS_SET
select ARCH_SUPPORTS_COREDUMP
select ARCH_SUPPORTS_COREDUMP_PRIV_STACKS
select ARCH_SUPPORTS_ROM_START if !SOC_FAMILY_ESPRESSIF_ESP32
select ARCH_SUPPORTS_EMPTY_IRQ_SPURIOUS
select ARCH_HAS_CODE_DATA_RELOCATION

19
arch/riscv/core/coredump.c
View file

@ -5,6 +5,7 @@
*/
#include <string.h>
#include <zephyr/kernel.h>
#include <zephyr/debug/coredump.h>
#ifndef CONFIG_64BIT
@ -116,3 +117,21 @@ uint16_t arch_coredump_tgt_code_get(void)
{
return COREDUMP_TGT_RISC_V;
}
#if defined(CONFIG_DEBUG_COREDUMP_DUMP_THREAD_PRIV_STACK)
void arch_coredump_priv_stack_dump(struct k_thread *thread)
{
uintptr_t start_addr, end_addr;
/* See: zephyr/include/zephyr/arch/riscv/arch.h */
if (IS_ENABLED(CONFIG_PMP_POWER_OF_TWO_ALIGNMENT)) {
start_addr = thread->arch.priv_stack_start + Z_RISCV_STACK_GUARD_SIZE;
} else {
start_addr = thread->stack_info.start - CONFIG_PRIVILEGED_STACK_SIZE;
}
end_addr = Z_STACK_PTR_ALIGN(thread->arch.priv_stack_start + K_KERNEL_STACK_RESERVED +
CONFIG_PRIVILEGED_STACK_SIZE);
coredump_memory_dump(start_addr, end_addr);
}
#endif /* CONFIG_DEBUG_COREDUMP_DUMP_THREAD_PRIV_STACK */