From 2d277134c4b5c56d1c2912330aa44160af52aadf Mon Sep 17 00:00:00 2001 From: graysky Date: Thu, 7 Aug 2025 02:35:01 -0400 Subject: [PATCH] stacktrace_libgcc-inl.h: fix build for some ARM toolchains On OpenWrt when bulding for arm_cortex-a15_neon-vpfv4 or arm_cortex-a9_vfpv3-d16, the build errors out due to an undefined symbol _URC_NORMAL_STOP. This usually happens when the required header (typically ) is not included, or the toolchain's unwind implementation does not provide this definition. Error: src/stacktrace_libgcc-inl.h: In function '_Unwind_Reason_Code libgcc_backtrace_helper(_Unwind_Context*, void*)': src/stacktrace_libgcc-inl.h:69:12: error: '_URC_NORMAL_STOP' was not declared in this scope 69 | return _URC_NORMAL_STOP; | A work-around is to use URC_END_OF_STACK. Signed-off-by: graysky --- src/stacktrace_libgcc-inl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/src/stacktrace_libgcc-inl.h +++ b/src/stacktrace_libgcc-inl.h @@ -66,7 +66,7 @@ static _Unwind_Reason_Code libgcc_backtr } if (data->pos >= data->limit) { - return _URC_NORMAL_STOP; + return _URC_END_OF_STACK; } void *ip = reinterpret_cast(_Unwind_GetIP(ctx));;