On Darwin, according to the man pages for setrlimit(), when adjusting
max number of open fds, the reported hard max by getrlimit() is only
theoretical, while the actual maximum, set in the kernel, is hardcoded
in the header file. Therefore, the reported max has to be adjusted
as `min(OPEN_MAX, lim.max)`.
Signed-off-by: Jakub Konka <kubkon@jakubkonka.com>
* extract logic into a `os_can_execve` and use it in the other place
that we execve
* outdent some code by introducing `run_or_test` variable
* delete unnecessary and wasteful memory management logic
* better error message for when execve fails
* add comment to explain why we do not execve for `zig test`
* std.fs.File.copyRange and copyRangeAll return u64 instead of usize -
the returned value is how much of the `len` is transferred, so the
types should match. This removes the need for an `@intCast`.
* fix typo that removed a subtraction
* Fix the size of codegen.AnyMCValue which gave me a compile error when
I tried to build self-hosted for i386-linux.
* restore the coercion to u64 of syms_sect.sh_info. We want to make
sure the multiplication happens with 64 bits and not the smaller type
used by the ELF format.
* fix another offset parameter in link/Elf.zig to be u64 instead of usize
* add a nice little TODO note to help out Jakub
* FmtError already has FileTooBig in it; we just need to return it.
It was regressed in 2 ways from the merge of #6250:
* it was not being enabled by default when the target OS is native.
* we were testing the libfoo.so file path existence with bogus format
string ('{}' instead of '{s}') and so it ended up being something
like "libstd.HashMap(K,V,...).Entry.so" instead of "libfoo.so". Using
{} rather than {s} is a footgun, be careful!
Previous functionality is now restored.
closes#6523
* change some {} to be {s} to gain type safety
* fix libraries being libfoo.lib instead of foo.lib for COFF
* when linking mingw-w64, add the "always link" libs so that we
generate DLL import .lib files for them as the linker code relies on.
* COFF LLD linker does not support -r so we do a file copy as an
alternative to the -r thing that ELF linking does.
I will file an issue for the corresponding TODO upon merging this
branch, to look into an optimization that possibly elides this copy
when the source and destination are both cache directories.
* add a CLI error message when trying to link multiple objects into one
and using COFF object format.
* 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.
These CLI options are now forwarded to the stage1 backend.
We're not going to support the -mllvm CLI option any longer. As a
compromise, we unconditionally tell LLVM to output intel x86 syntax when
using -femit-asm.
Simplify stage1 logic; it no longer has the concept of an output
directory. --output-dir is no longer a valid CLI option. cmake uses
the `-femit-bin=[path]` option.
Note the changes to test/cli.zig. This breaks the CLI API that Godbolt
is using so we're going to want to open a PR to help them upgrade to the
new CLI for the upcoming Zig 0.7.0 release.
This cleans up how the CLI parses and handles -E, -S, and -c.
Compilation explicitly acknowledges when it is being used to do C
preprocessing.
-S is properly translated to -fno-emit-bin -femit-asm but Compilation
does not yet handle -femit-asm.
There is not yet a mechanism for skipping the linking step when there is
only a single object file, and so to make this work we have to do a file
copy in link.flush() to copy the file from zig-cache into the output
directory.
Normally when using LLD to link, Zig uses a file named "lld.id" in the
same directory as the output binary which contains the hash of the link
operation, allowing Zig to skip linking when the hash would be unchanged.
In the case that the output binary is being emitted into a directory which
is externally modified - essentially anything other than zig-cache - then
this flag would be set to disable this machinery to avoid false positives.
* Better defaults when using -fno-LLVM
* Fix compiler_rt and libc static libraries were getting a .zig
extension instead of .a extension.
* when using the stage1 backend, put the object file next to the
stage1.id file in the cache directory. this prevents an object file
from polluting the cwd when using zig from the CLI.
* Don't try to generate C header files yet since it will only cause a
crash saying the feature is unimplemented.
* Rename the CLI options for release modes to use the `-O` prefix to
match C compiler precedent. Options are now `-ODebug`,
`-OReleaseFast`, `-OReleaseSafe`, `-OReleaseSmall`. The optimization
mode matches the enum tags of std.builtin.Mode. It is planned to, at
some point, rename std.builtin.Mode to std.builtin.OptimizationMode
and modify the tags to be lower case to match the style convention.
- Update build.zig code to support this new CLI.
* update std.zig.binNameAlloc to support an optional Version and update
the implementation to correctly deal with dynamic library version
suffixes.
