feat(build): add RISC-V ZCMP post-link workaround check

Validate linked RISC-V executables when
CONFIG_COMPILER_ENABLE_RISCV_ZCMP is enabled on affected chips.
Disassemble each function and reject mstatus.MIE clears that lack an
earlier mintthresh write of 0xff.

Handle csrrci, csrrw, and register-mask csrrc patterns while ignoring
csrrs. Add build-only coverage for valid and invalid sequences with
CMake v1 and v2.

Stop the hardware stack guard before switching stacks during restart,
and keep ZCMP disabled for TEE test apps that still require the
workaround.
This commit is contained in:
Alexey Lapshin
2026-08-03 14:10:00 +08:00
committed by BOT
parent 6a9c44fe7e
commit a494009a0c
20 changed files with 380 additions and 23 deletions
@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -70,20 +70,6 @@ FORCE_INLINE_ATTR void restore_csr_enable_global_int(uint32_t mstatus_val, uint3
#endif
}
#if __riscv_zcmp && SOC_CPU_ZCMP_WORKAROUND
FORCE_INLINE_ATTR uint32_t save_mintthresh_and_disable_global_int(void)
{
/* Due to the reason described in IDF-14279, when mie is set to 0, mintthresh needs to be set to 0xff. */
// TODO: IDF-14279 DIG-661
return RV_READ_MINTTHRESH_AND_DISABLE_INTR();
}
FORCE_INLINE_ATTR void restore_mintthresh(uint32_t mintthresh_val)
{
RV_RESTORE_MINTTHRESH(mintthresh_val);
}
#endif
static IRAM_ATTR RvCoreNonCriticalSleepFrame * rv_core_noncritical_regs_save(void)
{
assert(s_cpu_retention.retent.non_critical_frame);