https://github.com/python/cpython/commit/8458582736b69b1ac05eef65230c4806f92891cd commit: 8458582736b69b1ac05eef65230c4806f92891cd branch: main author: yzewei <[email protected]> committer: vstinner <[email protected]> date: 2026-06-29T11:48:05+02:00 summary:
gh-152240: Fix test_c_stack_unwind on Linux LoongArch builds (#152241) files: A Misc/NEWS.d/next/Build/2026-06-26-16-30-00.gh-issue-152240.loongarch.rst M Modules/_testinternalcapi.c diff --git a/Misc/NEWS.d/next/Build/2026-06-26-16-30-00.gh-issue-152240.loongarch.rst b/Misc/NEWS.d/next/Build/2026-06-26-16-30-00.gh-issue-152240.loongarch.rst new file mode 100644 index 000000000000000..ce9274a5c108377 --- /dev/null +++ b/Misc/NEWS.d/next/Build/2026-06-26-16-30-00.gh-issue-152240.loongarch.rst @@ -0,0 +1,2 @@ +Fix C stack unwinding tests on Linux LoongArch builds by teaching the manual +frame pointer unwinder to recognize the LoongArch frame layout. diff --git a/Modules/_testinternalcapi.c b/Modules/_testinternalcapi.c index e3de9006d5a427f..6506bd53b0377ad 100644 --- a/Modules/_testinternalcapi.c +++ b/Modules/_testinternalcapi.c @@ -98,6 +98,12 @@ static const uintptr_t min_frame_pointer_addr = 0x1000; // https://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi-1.9.html#STACK # define FRAME_POINTER_NEXT_OFFSET 0 # define FRAME_POINTER_RETURN_OFFSET 2 +#elif defined(__loongarch__) +// On LoongArch, the frame pointer is the caller's stack pointer. +// The saved frame pointer is stored at fp[-2], and the return +// address is stored at fp[-1]. +# define FRAME_POINTER_NEXT_OFFSET -2 +# define FRAME_POINTER_RETURN_OFFSET -1 #else # define FRAME_POINTER_NEXT_OFFSET 0 # define FRAME_POINTER_RETURN_OFFSET 1 _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3//lists/python-checkins.python.org Member address: [email protected]
