Messages in this thread | | | From | Sami Tolvanen <> | Date | Mon, 14 Aug 2023 13:18:30 -0700 | Subject | Re: [PATCH 0/5] riscv: SCS support |
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On Mon, Aug 14, 2023 at 11:57 AM Sami Tolvanen <samitolvanen@google.com> wrote: > Looks like __builtin_frame_address behaves differently on RISC-V. > After staring at the disassembly a bit, using > __builtin_frame_address(0) - 1 instead of + 1 seems to yield correct > results.
Elliott was kind enough to point out to me off-list that this behavior has been documented here:
https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-cc.adoc#frame-pointer-convention
I'll include a patch to fix the test on RISC-V in the next version.
Sami
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