Evgeny Karpov <evgeny.kar...@microsoft.com> writes: > The main focus of this work is resolving issues in the aarch64-w64-mingw32 > target related to enabling optimization with -O2, -O3, and LTO, fixing > relocations, and adding debugging information. > > This patch series is supported by the binutils patch series. > https://sourceware.org/pipermail/binutils/2024-August/136481.html
Thanks for submitting this. I've responded with minor comments to some individual patches, but the rest (1, 2, 7, and 8) look good to me as-is. On patch 1, do you have a reference for how AArch64 and x86 handle weak references for MinGW? The code looks good, but I didn't really follow why it was doing what it was doing. Richard > > The patches included in this series implement and resolve the > following areas: > > 1. Support weak references. > 2. Add debugging information. > 3. Add minimal C++ support. > 4. Exclude symbols using GOT from code models. > 5. Resolve relocation and small code model issues. Before the change, > the code model could not address more than 1MB due to relocation > issues. After the fix, the SMALL code model can address 4GB properly. > 6. Fix optimization issues, mostly related to relocation issues. > 7. Add LTO support. > 8. Support large alignment. > 9. Extend the number of tests from 309k to 605k by adding minimal C++ > to the target, and improve the pass rate from 72% to 89% with fixes > in the patch series targeting armv8 without optional extensions > such as SVE. > > What is next? > 1. The patch series 4. Partial or full SEH implementation, variadic > functions fixes, call stack support for debugging, bug fixing, and > improving unit tests pass rate. > 2. The patch series 5. The rest of SEH, C++ exceptions, Boost > library unit testing, bug fixing, and improving unit tests pass rate. > 3. In terms of the contribution window for GCC 15 it will be great > to have architecture target armv8-a in the best quality it can be > achieved. The patch series to extend architecture target from armv8-a > to "armv8.2-a + sve" might be also prepared before GCC 15 release. > However it is unknown yet if it lands in GCC 15 release or in the > next development cycle. > > Thank you for your review! > > Prepared, refactored and validated by > Radek Barton <radek.bar...@microsoft.com> and > Evgeny Karpov <evgeny.kar...@microsoft.com> > > Contributor: Zac Walker <zacwal...@microsoft.com> > > Special thanks to Linaro, especially Christophe Lyon, > for the internal review! > > Regards, > Evgeny
