patches for 128ESR

[classilla]

Apply in order. Includes LTO-PGO and webrtc patches, plus a provisional fix for bug 1912623. Does not yet support Ion or Wasm (Baseline Compiler and Baseline Interpreter only).

.mozconfig for browser:

export CC=/usr/bin/gcc
export CXX=/usr/bin/g++

mk_add_options MOZ_MAKE_FLAGS="-j24"
ac_add_options --enable-application=browser
ac_add_options --enable-optimize="-O3 -mcpu=power9 -fpermissive"
ac_add_options --enable-release
ac_add_options --enable-linker=bfd
ac_add_options --enable-lto=full
ac_add_options --enable-jit
ac_add_options --without-wasm-sandboxed-libraries
ac_add_options --with-libclang-path=/usr/lib64
ac_add_options MOZ_PGO=1

export GN=/home/censored/bin/gn # if you haz
export RUSTC_OPT_LEVEL=2

.mozconfig for JS shell only (this builds a debug shell for development purposes):

export CC=/usr/bin/gcc
export CXX=/usr/bin/g++

mk_add_options MOZ_MAKE_FLAGS="-j24"
ac_add_options --enable-optimize="-Og -mcpu=power9 -fpermissive -DXXH_NO_INLINE_HINTS=1"
ac_add_options --enable-debug
ac_add_options --enable-application=js
ac_add_options --enable-jit
ac_add_options --enable-linker=bfd
ac_add_options --with-libclang-path="/usr/lib64/"

mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/obj

esrpatches.zip

[kth5]

These do not seem to apply to >=128.3.0esr anymore. :(

[classilla]

It rebased fine for me (it had to merge one file). If you're not using the rebase extension, you'll find it a lot more helpful. These should apply against tip.
patches.zip

[atomicdog]

How do you use rebase to get the patches to apply?
I've never used mercurial before.

[classilla]

Apply the patches in order to the tree. When you hg pull next to get Mozilla's changes, follow it with an hg rebase so that the JIT patches get moved back on top as if you were applying them to a fresh tree.

[atomicdog]

Should I be using hg patch or just the plan old patch command?

[classilla]

hg import them in numerical order. This will import the patch and do each commit in one step.