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Avoids a compile error from start.zig:
/home/kivikakk/zig/build/lib/zig/std/start.zig:265:28: error:
expected type 'u8', found 'i8'
return result;
^
/home/kivikakk/zig/build/lib/zig/std/start.zig:265:28: note:
unsigned 8-bit int cannot represent all possible signed 8-bit
values
return result;
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add SPDX license identifier
copyright ownership is zig contributors
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5002-fix-entrypoint-with-winmain
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This is a bit hacky since we end up doing more than just grabbing
the stack pointer in the inline assembly block. Ideally _start would
be implemented in pure asm for powerpc64le, but this will do for now.
Still to be implemented is powerpc, powerpc64, and powerpc64 (ELFv2)
support. The latter will just require correctly determing target ABI
for powerpc64 and enabling the existing powerpc64le implementation for
it.
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* Always allocate an info block per-thread so that libc can store
important stuff there.
* Respect ABI-mandated alignment in more places.
* Nicer code, use slices/pointers instead of raw addresses whenever
possible.
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This reverts commit ee6fda2297bf75432b8d7115ec4c60c213535bbe, reversing
changes made to f313ab18aecea1ade0b6a90d671352a641ad351a.
This caused a test failure:
```
behavior.misc.test "behavior-arm-linux-none-Debug-bare-multi thread local variable"...test failure
/home/vsts/work/1/s/lib/std/testing.zig:191:14: 0x4608f in std.testing.expect (test)
if (!ok) @panic("test failure");
^
/home/vsts/work/1/s/test/stage1/behavior/misc.zig:616:11: 0x53e93 in behavior.misc.test "behavior-arm-linux-none-Debug-bare-multi thread local variable" (test)
expect(S.t == 1235);
^
```
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* Always allocate an info block per-thread so that libc can store
important stuff there.
* Respect ABI-mandated alignment in more places.
* Nicer code, use slices/pointers instead of raw addresses whenever
possible.
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* re-introduce `std.build.Target` which is distinct from `std.Target`.
`std.build.Target` wraps `std.Target` so that it can be annotated as
"the native target" or an explicitly specified target.
* `std.Target.Os` is moved to `std.Target.Os.Tag`. The former is now a
struct which has the tag as well as version range information.
* `std.elf` gains some more ELF header constants.
* `std.Target.parse` gains the ability to parse operating system
version ranges as well as glibc version.
* Added `std.Target.isGnuLibC()`.
* self-hosted dynamic linker detection and glibc version detection.
This also adds the improved logic using `/usr/bin/env` rather than
invoking the system C compiler to find the dynamic linker when zig
is statically linked. Related: #2084
Note: this `/usr/bin/env` code is work-in-progress.
* `-target-glibc` CLI option is removed in favor of the new `-target`
syntax. Example: `-target x86_64-linux-gnu.2.27`
closes #1907
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closes #3511
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Pointer arithmetic affects the alignment factor
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Use a struct as second parameter to be future proof (and also allows to
specify default values for the parameters)
Closes #2679 as it was just a matter of a few lines of code.
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Closes #1528
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Previously, the compiler had special logic to determine whether to
include the startup code, which was in `std/special/start.zig`. Now,
the file is moved to `std/start.zig`, and there is no special logic
in the compiler. Instead, the standard library unconditionally imports
the `start.zig` file, which then has a `comptime` block that does the
logic of determining what, if any, start symbols to export. Instead of
`start.zig` being in its own special package, it is just another normal
file that is part of the standard library.
`std.builtin.TestFn` is now part of the standard library rather than
specially generated by the compiler.
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