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closes #5019
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part of #19063
This is a prerequisite for doing the same for Resinator.
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Thanks to @matklad for finding this additional NTSTATUS possibility when
calling GetFinalPathNameByHandle.
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see https://releases.llvm.org/17.0.1/tools/clang/docs/UsersManual.html#generating-a-pch-file
syntax examples:
`zig cc -x c-header test.h -o test.pch`
`zig cc -include-pch test.pch main.c`
`zig c++ -x c++-header test.h -o test.pch`
`zig c++ -include-pch test.pch main.cpp`
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Co-authored-by: Andrew Kelley <andrew@ziglang.org>
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Co-authored-by: Motiejus Jakštys <motiejus@jakstys.lt>
Co-authored-by: Jakub Konka <kubkon@jakubkonka.com>
Co-authored-by: Samuel Cantero <scanterog@gmail.com>
Co-authored-by: Giorgos Georgiou <giorgos.georgiou@datadoghq.com>
Co-authored-by: Carl Åstholm <carl@astholm.se>
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This branch introduced an arena allocator for temporary allocations in
Compilation.update. Almost every implementation of flush() inside the
linker code was already creating a local arena that had the lifetime of
the function call. This commit passes the update arena so that all those
local ones can be deleted, resulting in slightly more efficient memory
usage with every compilation update.
While at it, this commit also removes the Compilation parameter from the
linker flush function API since a reference to the Compilation is now
already stored in `link.File`.
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Now, link.File will always be null when -fno-emit-bin is specified, and
in the case that LLVM artifacts are still required, the Zcu instance has
an LlvmObject.
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So that they can be referenced by getAllErrorsAlloc(). Fixes missing
compile errors.
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since it's accessed by Compilation. fixes an invalid check of
bin_file==null
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This field is needed by Compilation regardless of whether a link file is
instantiated.
Fixes an invalid check for bin_file=null.
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* move wasi_emulated_libs into Compilation
- It needs to be accessed from Compilation, which needs to potentially
build those artifacts.
* Compilation: improve error reporting for two cases
- the setMiscFailure mechanism is handy - let's use it!
* fix one instance of incorrectly checking for emit_bin via
`comp.bin_file != null`. There are more instances of this that need to
be fixed in a future commit.
* fix renameTmpIntoCache not handling the case where it needs to make
the "o" directory in the zig-cache directory.
- while I'm at it, simplify the logic for handling the fact that
Windows returns error.AccessDenied rather than
error.PathAlreadyExists for failure to rename a directory over
another one.
* fix missing cache hash additions
- there are still more to add in a future commit -
addNonIncrementalStuffToCacheManifest is called when bin_file is
always null, and then it incorrectly checks if bin_file is non-null
and only then adds a bunch of stuff to the cache hash. It needs to
instead add to the cache hash based on lf_open_opts.
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This is necessary because on COFF, the entry symbol name is not known
until the linker has looked at the set of global symbol names to
determine which of the four possible main entry points is present.
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implement builtin.zig file population for all modules rather than
assuming there is only one global builtin.zig module.
move some fields from link.File to Compilation
move some fields from Module to Compilation
compute debug_format in global Compilation config resolution
wire up C compilation to the concept of owner modules
make whole cache mode call link.File.createEmpty() instead of
link.File.open()
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These options are only supposed to be provided to the initialization
functions, resolved, and then computed values stored in the appropriate
place (base struct or the object-format-specific structs).
Many more to go...
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Much of the logic from Compilation.create() is extracted into
Compilation.Config.resolve() which accepts many optional settings and
produces concrete settings. This separate step is needed by API users of
Compilation so that they can pass the resolved global settings to the
Module creation function, which itself needs to resolve per-Module
settings.
Since the target and other things are no longer global settings, I did
not want them stored in link.File (in the `options` field). That options
field was already a kludge; those options should be resolved into
concrete settings. This commit also starts to work on that, deleting
link.Options, moving the fields into Compilation and
ObjectFormat-specific structs instead. Some fields were ephemeral and
should not have been stored at all, such as symbol_size_hint.
The link.File object of Compilation is now a `?*link.File` and `null`
when -fno-emit-bin is passed. It is now arena-allocated along with
Compilation itself, avoiding some messy cleanup code that was there
before.
On the command line, it is now possible to configure the standard
library itself by using `--mod std` just like any other module. This
meant that the CLI needed to create the standard library module rather
than having Compilation create it.
There are a lot of changes in this commit and it's still not done. I
didn't realize how quickly this changeset was going to balloon out of
control, and there are still many lines that need to be changed before
it even compiles successfully.
* introduce std.Build.Cache.HashHelper.oneShot
* add error_tracing to std.Build.Module
* extract build.zig file generation into src/Builtin.zig
* each CSourceFile and RcSourceFile now has a Module owner, which
determines some of the C compiler flags.
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instead of passing it to Compilation separately and storing it
separately in the linker options.
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Introduce the concept of "target query" and "resolved target". A target
query is what the user specifies, with some things left to default. A
resolved target has the default things discovered and populated.
In the future, std.zig.CrossTarget will be rename to std.Target.Query.
Introduces `std.Build.resolveTargetQuery` to get from one to the other.
The concept of `main_mod_path` is gone, no longer supported. You have to
put the root source file at the module root now.
* remove deprecated API
* update build.zig for the breaking API changes in this branch
* move std.Build.Step.Compile.BuildId to std.zig.BuildId
* add more options to std.Build.ExecutableOptions, std.Build.ObjectOptions,
std.Build.SharedLibraryOptions, std.Build.StaticLibraryOptions, and
std.Build.TestOptions.
* remove `std.Build.constructCMacro`. There is no use for this API.
* deprecate `std.Build.Step.Compile.defineCMacro`. Instead,
`std.Build.Module.addCMacro` is provided.
- remove `std.Build.Step.Compile.defineCMacroRaw`.
* deprecate `std.Build.Step.Compile.linkFrameworkNeeded`
- use `std.Build.Module.linkFramework`
* deprecate `std.Build.Step.Compile.linkFrameworkWeak`
- use `std.Build.Module.linkFramework`
* move more logic into `std.Build.Module`
* allow `target` and `optimize` to be `null` when creating a Module.
Along with other fields, those unspecified options will be inherited
from parent `Module` when inserted into an import table.
* the `target` field of `addExecutable` is now required. pass `b.host`
to get the host target.
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This option is not needed since the link_libc flag can be set directly
when creating compiler_rt.
This fixes a problem where an immutable flag was being mutated in Sema.
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reads on eg. connected TCP sockets can fail with ETIMEDOUT, and ENOTCONN
happens eg. if you try to read a TCP socket that has not been connected
yet.
interestingly read() was already handling CONNRESET & TIMEDOUT, but
readv(), pread(), and preadv() were somewhat inconsistent.
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This enables the compiler to generate a structured cfg even in opencl,
even if it is not strictly required by the SPIR-V Kernel specification.
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The main motivating change here is to prevent the creation of a fake
Decl object by the frontend in order to `@export()` a value.
Instead, `link.updateDeclExports` is renamed to `link.updateExports` and
accepts a tagged union which can be either a Decl.Index or a
InternPool.Index.
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Implement the stub for Elf.
I believe that separating the concerns, namely, having an interface
function that is responsible for signalling the linker to lower
the anon decl only, and a separate function to obtain the decl's
vaddr is preferable since it allows us to handle codegen errors
in a simpler way.
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elf: link against musl libc, add ELF test harness, dynamically allocate misc SHF_ALLOC sections
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- make vendored settings failure unreachable
- rename field `darwinSdkLayout` → `darwin_sdk_layout`
- make `darwin_sdk_layout` optional
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general:
- rename `DarwinSdkLayout` → `DarwinSdkLayout`
- drop `DarwinSdkLayout.installation` (not needed for darwin)
- document struct
inferSdkVersion:
- use explicit allocator
- avoid trying to infer SDK ver from vendored path
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