This test was originally introduced in 5f38d6e2e9, where it looked like this:
test "cast *[1][*]const u8 to [*]const ?[*]const u8" {
const window_name = [1][*]const u8{c"window name"};
const x: [*]const ?[*]const u8 = &window_name;
assert(mem.eql(u8, std.cstr.toSliceConst(x[0].?), "window name"));
}
Over the years, this has become more and more obfuscated, to the point that the verbosity of the `expect` call overshadows the point of the example. This commit intends to update this test to match the spirit of the original version of the test, while shedding the obfuscation.
In https://github.com/ziglang/zig/pull/19641, this binding changed from `[*]u16` to `LPWSTR` which made it a sentinel-terminated pointer. This introduced a compiler error in the `std.os.windows.GetModuleFileNameW` wrapper since it takes a `[*]u16` pointer. This commit changes the binding back to what it was before instead of introducing a breaking change to `std.os.windows.GetModuleFileNameW`
Related: https://github.com/ziglang/zig/issues/20858
We advertise reproducible builds for release modes, so let's help users achieve
that in C/C++ code. Users can still override this manually if they really want.
This does not completely ignore static asserts - they are validated by aro
during parsing; any failures will render an error and non-zero exit code.
Emit a warning comment that _Static_asserts are not translated - this
matches the behavior of the existing clang-based translate-c.
Aro currently does not store source locations for _Static_assert
declarations so I've hard-coded token index 0 for now.
Accesses to this global variable can require relocations on some platforms (e.g.
MIPS). If we do it before PIE relocations have been applied, we'll crash.
It's actually important for the ABI that r25 (t9) contains the address of the
called function, so that this standard prologue sequence works:
lui $2, %hi(_gp_disp)
addiu $2, $2, %lo(_gp_disp)
addu $gp, $2, $t9
(This is a bit similar to the ToC situation on powerpc that was fixed in
7bc78967b400322a0fc5651f37a1b0428c37fb9d.)
statx() is strictly superior to stat() and friends. We can do this because the
standard library declares Linux 4.19 to be the minimum version supported in
std.Target. This is also necessary on riscv32 where there is only statx().
While here, I improved std.fs.File.metadata() to gather as much information as
possible when calling statx() since that is the expectation from this particular
API.
This is kind of a hack because the timespec in UAPI headers is actually still
32-bit while __kernel_timespec is 64-bit. But, importantly, all the syscalls
take __kernel_timespec from the get-go (because riscv32 support is so recent).
Defining our timespec this way will allow all the syscall wrappers in
std.os.linux to do the right thing for riscv32. For other 32-bit architectures,
we have to use the 64-bit time syscalls explicitly to solve the Y2038 problem.
loongarch64 syscalls not updated because it seems like that kernel port hasn't
been working for a year or so:
In file included from arch/loongarch/include/uapi/asm/unistd.h:5:
include/uapi/asm-generic/unistd.h:2:10: fatal error: 'asm/bitsperlong.h' file not found
That file is just missing from the tree. 🤷
If we're going to abuse the preprocessor, we may as well go all the way and have
it generate a convenient format for us. This achieves two things:
1. We no longer need hacks for the arch-specific syscalls.
2. We now generate the correct syscall names for 32-bit platforms.
The latter is because we now resolve __SC_3264, etc.
