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`std.Io.tty.Config.detect` may be an expensive check (e.g. involving
syscalls), and doing it every time we need to print isn't really
necessary; under normal usage, we can compute the value once and cache
it for the whole program's execution. Since anyone outputting to stderr
may reasonably want this information (in fact they are very likely to),
it makes sense to cache it and return it from `lockStderrWriter`. Call
sites who do not need it will experience no significant overhead, and
can just ignore the TTY config with a `const w, _` destructure.
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* Accept -fsanitize-c=trap|full in addition to the existing form.
* Accept -f(no-)sanitize-trap=undefined in zig cc.
* Change type of std.Build.Module.sanitize_c to std.zig.SanitizeC.
* Add some missing Compilation.Config fields to the cache.
Closes #23216.
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Before:
❯ zig cc main.c -target x86_64-linux-musl && musl-ldd ./a.out
musl-ldd: ./a.out: Not a valid dynamic program
❯ zig cc main.c -target x86_64-linux-musl -static && musl-ldd ./a.out
musl-ldd: ./a.out: Not a valid dynamic program
❯ zig cc main.c -target x86_64-linux-musl -dynamic && musl-ldd ./a.out
musl-ldd: ./a.out: Not a valid dynamic program
After:
❯ zig cc main.c -target x86_64-linux-musl && musl-ldd ./a.out
musl-ldd: ./a.out: Not a valid dynamic program
❯ zig cc main.c -target x86_64-linux-musl -static && musl-ldd ./a.out
musl-ldd: ./a.out: Not a valid dynamic program
❯ zig cc main.c -target x86_64-linux-musl -dynamic && musl-ldd ./a.out
/lib/ld-musl-x86_64.so.1 (0x72c10019e000)
libc.so => /lib/ld-musl-x86_64.so.1 (0x72c10019e000)
Closes #11909.
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The goal here is to support both levels of unwind tables (sync and async) in
zig cc and zig build. Previously, the LLVM backend always used async tables
while zig cc was partially influenced by whatever was Clang's default.
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This was an inconsistency left over from c825b567b26c475e058e074e5d22af006854fab6.
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The compiler actually doesn't need any functional changes for this: Sema
does reification based on the tag indices of `std.builtin.Type` already!
So, no zig1.wasm update is necessary.
This change is necessary to disallow name clashes between fields and
decls on a type, which is a prerequisite of #9938.
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* Add -f(no-)sanitize-coverage-trace-pc-guard CLI flag which defaults to
off. This value lowers to TracePCGuard = true (LLVM backend) and -Xclang
-fsanitize-coverage-trace-pc-guard. These settings are not
automatically included with -ffuzz.
* Add `Build.Step.Compile` flag for sanitize_coverage_trace_pc_guard
with appropriate documentation.
* Add `zig cc` integration for the respective flags.
* Avoid crashing in ELF linker code when -ffuzz -femit-llvm-ir used
together.
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release/18.x branch, commit 78b99c73ee4b96fe9ce0e294d4632326afb2db42
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Justification: exec, execv etc are unix concepts and portable version
should be called differently.
Do no touch non-Zig code. Adjust error names as well, if associated.
Closes #5853.
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Most of this migration was performed automatically with `zig fmt`. There
were a few exceptions which I had to manually fix:
* `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten
* `@truncate`'s fixup is incorrect for vectors
* Test cases are not formatted, and their error locations change
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Signed-off-by: Eric Joldasov <bratishkaerik@getgoogleoff.me>
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json.parse* (#15705)
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* CompileStep: Avoid calling producesPdbFile() to determine whether the
option should be respected. If the user asks for it, put it on the
command line and let the Zig CLI deal with it appropriately.
* Make the namespace of `std.dwarf.Format.dwarf32` no longer have a
redundant "dwarf" in it.
* Add `zig cc` integration for `-gdwarf32` and `-gdwarf64`.
* Toss in a bonus bug fix for `-gdwarf-2`, `-gdwarf-3`, etc.
* Avoid using default init values for struct fields unnecessarily.
* Add missing cache hash addition for the new option.
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This makes -r treated the same as -c which is to output an object file.
Zig's ELF linker code already handles multiple object files into an
object file with the -r flag to LLD.
closes #11683
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Also clean up parsing of linker args - reuse `ArgsIterator`.
In MachO, ensure we add every symbol marked with `-u` as undefined
before proceeding with symbol resolution. Additionally, ensure those
symbols are never garbage collected.
MachO entry_in_dylib test: pass `-u _my_main` when linking executable
so that it is not incorrectly garbage collected by the linker.
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This commit adds support for "-x language" for a couple of hand-picked
supported languages. There is no reason the list of supported languages
to not grow (e.g. add "c-header"), but I'd like to keep it small at the
start.
Alternative 1
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I first tried to add a new type "Language", and then add that to the
`CSourceFile`. But oh boy what a change it turns out to be. So I am
keeping myself tied to FileExt and see what you folks think.
Alternative 2
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I tried adding `Language: ?[]const u8` to `CSourceFile`. However, the
language/ext, whatever we want to call it, still needs to be interpreted
in the main loop: one kind of handling for source files, other kind of
handling for everything else.
Test case
---------
*standalone.c*
#include <iostream>
int main() {
std::cout << "elho\n";
}
Compile and run:
$ ./zig run -x c++ -lc++ standalone.c
elho
$ ./zig c++ -x c++ standalone.c -o standalone && ./standalone
elho
Fixes #10915
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enums so that we can branch to set `link_mode` properly when we iterate
over the clang arguments. also replaced `dynamic` flag in
clang_options_data.zig with proper definition similarly to `static`."
This reverts commit 6af0eeb58d1d220d407ce4c463eaeb25b35f2761.
This change needs more careful consideration. It regressed
zig-bootstrap due to cmake passing `-static -lkernel32` and zig failing
with error.UnableToStaticLink.
See https://github.com/ziglang/zig-bootstrap/issues/134
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set `link_mode` properly when we iterate over the clang arguments. also replaced `dynamic` flag in clang_options_data.zig with proper definition similarly to `static`.
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This is one of the final remaining TODOs for the LLVM backend.
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* make the setting in the linker backend be non-optional; by this time
all defaults are supposed to be resolved.
* integrate with `zig cc`
* change the CLI parsing to match C compiler parsing, allowing
`--compress-debug-sections` alone to choose a default encoding of
zlib.
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Clang accepts `-weak-lx`, `-weak_library x` and `-weak_framework x`.
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* rename `entry` to `entry_symbol_name` for the zig build API
* integrate with `zig cc` command line options
* integrate with COFF linking with LLD
* integrate with self-hosted ELF linker
* don't put it in the hash for MachO since it is ignored
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Prior to this change, even if the use specified the sysroot on the
compiler line like so
```
zig cc --sysroot=/path/to/sdk
```
it would only be used as a prefix to include paths and not as a prefix
for `zig ld` linker.
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