* add CLI support for verbose debugging options
* implement building compiler_rt and libc static archive using stage1
C++ backend
* add function_sections and link_libcpp to root cache hash.
* cleanups to use the new Directory.join method.
* Package supports being initialized directly and cleaned up create()
method.
* fix classifyFileExt incorrectly saying .zir is .zig. Thanks
@Rocknest!
* unify updateSubCompilation implementations
* move stage2.cpp code into zig0.cpp for simplicity
* add -ftime-report and some more CLI options to stage2
* stage2 compites the llvm cpu features string
* classifyFileExt understands more file extensions
* correction to generateBuiltinZigSource using the wrong allocator
(thanks dbandstra!)
* stage2 is now able to build hello.zig into hello.o using stage1 as a
library however it fails linking due to missing compiler-rt
* remove dead code
* simplify zig0 builtin.zig source
* fix not resolving builtin.zig source path causing duplicate imports
* fix stage1.h not being valid C code
* fix stage2.h not being valid C code
This takes the place of `zig builtin`. This is an improvement over the
command because now the generated source will correctly show LinkMode
and OutputMode, whereas before it was always stuck as Static and Obj,
respectively.
Deleted 16,000+ lines of c++ code, including:
* an implementation of blake hashing
* the cache hash system
* compiler.cpp
* all the linking code, and everything having to do with building
glibc, musl, and mingw-w64
* much of the stage1 compiler internals got slimmed down since it
now assumes it is always outputting an object file.
More stuff:
* stage1 is now built with a different strategy: we have a tiny
zig0.cpp which is a slimmed down version of what stage1 main.cpp used
to be. Its only purpose is to build stage2 zig code into an object
file, which is then linked by the host build system (cmake) into
stage1. zig0.cpp uses the same C API that stage2 now has access to,
so that stage2 zig code can call into stage1 c++ code.
- stage1.h is
- stage2.h is
- stage1.zig is the main entry point for the Zig/C++
hybrid compiler. It has the functions exported from Zig, called
in C++, and bindings for the functions exported from C++, called
from Zig.
* removed the memory profiling instrumentation from stage1.
Abandon ship!
* Re-added the sections to the README about how to build stage2 and
stage3.
* stage2 now knows as a comptime boolean whether it is being compiled
as part of stage1 or as stage2.
- TODO use this flag to call into stage1 for compiling zig code.
* introduce -fdll-export-fns and -fno-dll-export-fns and clarify
its relationship to link_mode (static/dynamic)
* implement depending on LLVM to detect native target cpu features when
LLVM extensions are enabled and zig lacks CPU feature detection for
that target architecture.
* C importing is broken, will need some stage2 support to function
again.
Here's the doc comment from the commit:
For one example of why this is handy, consider the case of building musl libc.
We keep a lock open for each of the object files in the form of a file descriptor
until they are finally put into an archive file. This is to allow a zig-cache
garbage collector to run concurrently to zig processes, and to allow multiple
zig processes to run concurrently with each other, without clobbering each other.
This code is disabled until #6361 is implemented (getrlimit/setrlimit
are not yet added to the standard library).
* caching system: use 16 bytes siphash final(), there was a bug in the
std lib that wasn't catching undefined values for 18 bytes. fixed in
master branch.
* fix caching system unit test logic to not cause error.TextBusy on windows
* port the logic from stage1 for building glibc shared objects
* add is_native_os to the base cache hash
* fix incorrectly freeing crt_files key (which is always a reference to
global static constant data)
* fix 2 use-after-free in loading glibc metadata
* fix memory leak in buildCRTFile (errdefer instead of defer on arena)
This reverts commit 40cb712d13aff4bfe83256858ad6b18d82e70211.
Thanks to Ava & Luna of Lavatech, we don't need to resort to this, they
have graciously given zig a SourceHut instance to use that gives us 8GB
RAM.
