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Clang has a completely inconsistent CLI for its integrated assembler for
each target architecture. For x86_64, for example, it does not accept
an -mcpu parameter, and emits "warning: unused parameter". However, for
ARM, -mcpu is needed in order to properly lower assembly to machine code
instructions (see new standalone test case provided thanks to @g-w1).
This is a compromise between
b8f85a805bf61ae11d6ee2bd6d8356fbc98ee3ba and
afb9f695b1bdbf81185e7d55d5783bcbab880989.
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- more support for linux, android, freebsd, netbsd, openbsd, dragonfly
- centralize musl utils; musl logic is no longer intertwined with csu
- fix musl compilation to build crti/crtn for full archs list
- fix openbsd to support `zig build-lib -dynamic`
- initial dragonfly linking success (with a warning)
ancillary:
- fix emutls (openbsd) tests to use `try`
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The other libc components are not available on android.
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This matches the behaviour of other languages and leaves us
the ability to create actual static Wasm archives with
```
zig build-lib -static some.zig
```
which can then be combined with other Wasm object files and linked
into either a Wasm lib or executable using `wasm-ld`.
Update langref to reflect the fact we now ship WASI libc.
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Rename include dir to match the convention:
from `wasm32-wasi` to `wasm-wasi-musl`
Add building stubs which will be used to build and cache WASI
libc sysroot.
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make it clear that the logic is only there to lower the amount of
noise on the clang command line.
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Apparently these systems do not provide libdl or librt.
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Conflicts:
* src/clang.zig
* src/llvm.zig
- this file got moved to src/llvm/bindings.zig in master branch so I
had to put the new LLVM arch/os enum tags into it.
* lib/std/target.zig, src/stage1/target.cpp
- haiku had an inconsistency with its default target ABI, gnu vs
eabi. In this commit we make it gnu in both places to match the
latest changes by @hoanga.
* src/translate_c.zig
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Stage 2: SPIR-V setup
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* CLI: change to -mred-zone and -mno-red-zone to match gcc/clang.
* build.zig: remove the double negative and make it an optional bool.
This follows precedent from other flags, allowing the compiler CLI to
be the decider of what is default instead of duplicating the default
value into the build system code.
* Compilation: make it an optional `want_red_zone` instead of a
`no_red_zone` bool. The default is decided by a call to
`target_util.hasRedZone`.
* When creating a Clang command line, put -mred-zone on the command
line if we are forcing it to be enabled.
* Update update_clang_options.zig with respect to the recent {s}/{} format changes.
* `zig cc` integration with red zone preference.
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Make osRequiresLibC call Os.requiresLibC, let's keep a single list of OS
that require the libc to be linked in.
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Putting functions in this file will create functions like
`llvm.function`, and the compiler thinks these are llvm intrinsics.
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Previously Zig would need to recompile runtime libs if you changed the
values of --strip or -O. Now, unless the `debug_compiler_runtime_libs`
flag is set (which is currently not exposed to the CLI), Zig will always
choose ReleaseFast or ReleaseSmall for compiler runtime libraries.
When the main application chooses ReleaseFast or ReleaseSmall, that
value is propagated to compiler runtime libraries. Otherwise a decision
is made based on the target, which is currently ReleaseSmall for
freestanding WebAssembly and ReleaseFast for everything else.
Ultimately the purpose of this commit is to have Debug and ReleaseSafe
builds of applications still get optimized builds of, e.g. libcxx and
libunwind, as well as to spend less time unnecessarily rebuilding compiler
runtime libraries.
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llvm commit b2851aea80e5a8f0cfd6c3c5a56a6b00fb28c6b6
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Include updates to corresponding zig sources
llvm commit b2851aea80e5a8f0cfd6c3c5a56a6b00fb28c6b6
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also remove redundant "util" string matching.
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See #5854
Some tiny tweaks too:
* Use `wasm-freestanding-musl` instead of `wasm32-freestanding-musl`,
making it pointer-size-agnostic.
* Fix trying to build non-existent wasm musl start files.
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This is an alternate fix for #6773. Reverts
872bc787b56f71e53c80f4681523bc8356915b71.
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Signed-off-by: Jakub Konka <kubkon@jakubkonka.com>
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* in selfExePath, return errors instead of defaulting to bogus data
* less invasive edits to the logic of link/Elf.zig
* less indentation
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Closes #6497
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* std.log: still print error messages in ReleaseSmall builds.
- when start code gets an error code from main, it uses std.log.err
to report the error. this resulted in a test failure because
ReleaseSmall wasn't printing `error: TheErrorCode` when an error
was returned from main. But that seems like it should keep working.
So I changed the std.log defaults. I plan to follow this up with a
proposal to change the names of and reduce the quantity of the
log levels.
* warning emitted when using -femit-h when using stage1 backend; fatal
log message when using -femit-h with self-hosted backend (because the
feature is not yet available)
* fix double `test-cli` build steps in zig's build.zig
* update docgen to use new CLI
* translate-c uses `-x c` and generates a temporary basename with a
`.h` extension. Otherwise clang reports an error.
* --show-builtin implies -fno-emit-bin
* restore the compile error for using an extern "c" function without
putting -lc on the build line. we have to know about the libc
dependency up front.
* Fix ReleaseFast and ReleaseSmall getting swapped when passing the
value to the stage1 backend.
* correct the zig0 CLI usage text.
* update test harness code to the new CLI.
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