From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- .../libwebrtc/build/toolchain/win/rc/README.md | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 third_party/libwebrtc/build/toolchain/win/rc/README.md (limited to 'third_party/libwebrtc/build/toolchain/win/rc/README.md') diff --git a/third_party/libwebrtc/build/toolchain/win/rc/README.md b/third_party/libwebrtc/build/toolchain/win/rc/README.md new file mode 100644 index 0000000000..e6d38f9709 --- /dev/null +++ b/third_party/libwebrtc/build/toolchain/win/rc/README.md @@ -0,0 +1,30 @@ +# rc + +This contains a cross-platform reimplementation of rc.exe. + +This exists mainly to compile .rc files on non-Windows hosts for cross builds. +However, it also runs on Windows for two reasons: + +1. To compare the output of Microsoft's rc.exe and the reimplementation and to + check that they produce bitwise identical output. +2. The reimplementation supports printing resource files in /showIncludes + output, which helps getting build dependencies right. + +The resource compiler consists of two parts: + +1. A python script rc.py that serves as the driver. It does unicode + conversions, runs the input through the preprocessor, and then calls the + actual resource compiler. +2. The resource compiler, a C++ binary obtained via sha1 files from Google + Storage. The binary's code currenty lives at + https://github.com/nico/hack/tree/master/res, even though work is (slowly) + underway to upstream it into LLVM. + +To update the rc binary, run `upload_rc_binaries.sh` in this directory, on a +Mac. + +rc isn't built from source as part of the regular chrome build because +it's needed in a gn toolchain tool, and these currently cannot have deps. +Alternatively, gn could be taught about deps on tools, or rc invocations could +be not a tool but a template like e.g. yasm invocations (which can have deps), +then the prebuilt binaries wouldn't be needed. -- cgit v1.2.3