sigh...I ran a broken script to send the series which doesn't cc folks properly. + lkml, linux-kbuild (Might just resend, properly) On Thu, Dec 3, 2020 at 5:11 PM Nick Desaulniers <ndesaulniers@xxxxxxxxxx> wrote: > > DWARF v5 is the latest standard of the DWARF debug info format. > > DWARF5 wins significantly in terms of size when mixed with compression > (CONFIG_DEBUG_INFO_COMPRESSED). > > Link: http://www.dwarfstd.org/doc/DWARF5.pdf > > Patch 1 is a cleanup that lays the ground work and isn't DWARF > v5 specific. > Patch 2 implements Kconfig and Kbuild support for DWARFv5. > > Changes from v2: > * Drop two of the earlier patches that have been accepted already. > * Add measurements with GCC 10.2 to commit message. > * Update help text as per Arvind with help from Caroline. > * Improve case/wording between DWARF Versions as per Masahiro. > > Changes from the RFC: > * split patch in 3 patch series, include Fangrui's patch, too. > * prefer `DWARF vX` format, as per Fangrui. > * use spaces between assignment in Makefile as per Masahiro. > * simplify setting dwarf-version-y as per Masahiro. > * indent `prompt` in Kconfig change as per Masahiro. > * remove explicit default in Kconfig as per Masahiro. > * add comments to test_dwarf5_support.sh. > * change echo in test_dwarf5_support.sh as per Masahiro. > * remove -u from test_dwarf5_support.sh as per Masahiro. > * add a -gdwarf-5 cc-option check to Kconfig as per Jakub. > > Nick Desaulniers (2): > Kbuild: make DWARF version a choice > Kbuild: implement support for DWARF v5 > > Makefile | 15 +++++++------ > include/asm-generic/vmlinux.lds.h | 6 +++++- > lib/Kconfig.debug | 35 ++++++++++++++++++++++++++----- > scripts/test_dwarf5_support.sh | 9 ++++++++ > 4 files changed, 53 insertions(+), 12 deletions(-) > create mode 100755 scripts/test_dwarf5_support.sh > > -- > 2.29.2.576.ga3fc446d84-goog > -- Thanks, ~Nick Desaulniers
