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- add `_SC_GETPW_R_SIZE_MAX` constant
- declare `struct passwd`
- convert `load_self` to `current_exe`
Note: OpenBSD don't provide system function to return a valuable Path
for `env::current_exe`. The implementation is currently based on the
value of `argv[0]`, which couldn't be used when executable is called via
PATH.
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- add `_SC_GETPW_R_SIZE_MAX` constant
- declare `struct passwd`
- convert `load_self` to `current_exe`
Note: OpenBSD don't provide system function to return a valuable Path
for `env::current_exe`. The implementation is currently based on the
value of `argv[0]`, which couldn't be used when executable is called via
PATH.
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- consolidate target_record_sp_limit and target_get_sp_limit functions
for aarch64, powerpc, arm-ios and openbsd as there are all without
segmented stacks (no need to duplicate functions).
- rename __load_self function to rust_load_self
- use a mutex inner load_self() as underline implementation is not thread-safe
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They are unused since libtime is gone.
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Originally, this was going to be discussed and revisted, however I've been working on this for months, and a rebase on top of master was about 1 flight's worth of work so I just went ahead and did it.
This gets you as far as being able to target powerpc with, eg:
LD_LIBRARY_PATH=./x86_64-unknown-linux-gnu/stage2/lib/ x86_64-unknown-linux-gnu/stage2/bin/rustc -C linker=powerpc-linux-gnu-gcc --target powerpc-unknown-linux-gnu hello.rs
Would really love to get this out before 1.0. r? @alexcrichton
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Adds AArch64 knowledge to:
* configure,
* make files,
* sources,
* tests, and
* documentation.
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This commit merges the `rustrt` crate into `std`, undoing part of the
facade. This merger continues the paring down of the runtime system.
Code relying on the public API of `rustrt` will break; some of this API
is now available through `std::rt`, but is likely to change and/or be
removed very soon.
[breaking-change]
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Fixes #15279
Signed-off-by: Peter Atashian <retep998@gmail.com>
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This allows rustc to be build under msys2's mingw64 gcc
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The original trick used to trigger unwinds would not work with GCC's implementation of SEH, so I had to invent a new one: rust_try now consists of two routines: the outer one, whose handler triggers unwinds, and the inner one, that stops unwinds by having a landing pad that swallows exceptions and passes them on to the outer routine via a normal return.
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_WIN32 is defined for 64-bit builds as well, so test for _WIN64 first.
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Not included are two required patches:
* LLVM: segmented stack support for DragonFly [1]
* jemalloc: simple configure patches
[1]: http://reviews.llvm.org/D4705
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The aim of these changes is not working out a generic bi-endianness architectures support but to allow people develop for little endian MIPS machines (issue #7190).
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When calling a foreign function, some arguments and/or return value
attributes are required to conform to the foreign ABI. Currently those
attributes are only added to the declaration of foreign functions. With
direct calls, this is no problem, because LLVM can see that those
attributes apply to the call. But with an indirect call, LLVM cannot do
that and the attribute is missing.
To fix that, we have to add those attribute to the calls to foreign
functions as well.
This also allows to remove the special handling of the SRet attribute,
which is ABI-dependent and will be set via the `attr` field of the
return type's `ArgType`.
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It depends on `~str`.
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This requires pointing it at the valgrind headers we carry in-tree.
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This primary fix brought on by this upgrade is the proper matching of the ```
and ~~~ doc blocks. This also moves hoedown to a git submodule rather than a
bundled repository.
Additionally, hoedown is stricter about code blocks, so this ended up fixing a
lot of invalid code blocks (ending with " ```" instead of "```", or ending with
"~~~~" instead of "~~~").
Closes #12776
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This update brings a few months of changes, but primarily a fix for the
following situation.
When creating a handle to stdin, libuv used to set the stdin handle to
nonblocking mode. This would end up affect this stdin handle across all
processes that shared it, which mean that stdin become nonblocking for everyone
using the same stdin. On linux, this also affected *stdout* because stdin/stdout
roughly point at the same thing.
This problem became apparent when running the test suite manually on a local
computer. The stdtest suite (running with libgreen) would set stdout to
nonblocking mode (as described above), and then the next test suite would always
fail for a printing failure (because stdout was returning EAGAIN).
This has been fixed upstream, joyent/libuv@342e8c, and this update pulls in this
fix. This also brings us in line with a recently upstreamed libuv patch.
Closes #13336
Closes #13355
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The libuv fs wrappers are very thin wrappers around the syscalls they correspond
to, and a notable worrisome case is the write syscall. This syscall is not
guaranteed to write the entire buffer provided, so we may have to continue
calling uv_fs_write if a short write occurs.
Closes #13130
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This removes even more rust_builtin.c code, and allows us to more gracefully
handle errors (not a process panic, but a task failure).
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I ignored AtomicU64 methods on MIPS target
because libgcc doesn't implement MIPS32 64-bit atomic operations.
Otherwise it would cause link failure.
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This functionality is not super-core and so doesn't need to be included
in std. It's possible that std may need rand (it does a little bit now,
for io::test) in which case the functionality required could be moved to
a secret hidden module and reexposed by librand.
Unfortunately, using #[deprecated] here is hard: there's too much to
mock to make it feasible, since we have to ensure that programs still
typecheck to reach the linting phase.
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This function is not threadsafe, and is deprecated in favor of the threadsafe
readdir_r variant.
Closes #12692
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This notably includes joyent/libuv@6f62d62c in order to fix when processes fail
to spawn on windows
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Two unfortunate allocations were wrapping a proc() in a proc() with
GreenTask::build_start_wrapper, and then boxing this proc in a ~proc() inside of
Context::new(). Both of these allocations were a direct result from two
conditions:
1. The Context::new() function has a nice api of taking a procedure argument to
start up a new context with. This inherently required an allocation by
build_start_wrapper because extra code needed to be run around the edges of a
user-provided proc() for a new task.
2. The initial bootstrap code only understood how to pass one argument to the
next function. By modifying the assembly and entry points to understand more
than one argument, more information is passed through in registers instead of
allocating a pointer-sized context.
This is sadly where I end up throwing mips under a bus because I have no idea
what's going on in the mips context switching code and don't know how to modify
it.
Closes #7767
cc #11389
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This allows for easier static initialization of a pthread mutex, although the
windows mutexes still sadly suffer.
Note that this commit removes the clone() method from a mutex because it no
longer makes sense for pthreads mutexes. This also removes the Once type for
now, but it'll get added back shortly.
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This means we can purge even more C from src/rt!
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LLVM appears to generate calls to exp10 on ARM and bionic does not
define it.
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Right now on linux, an empty executable with LTO still depends on librt becaues
of the clock_gettime function in rust_builtin.o, but this commit moves this
dependency into a rust function which is subject to elimination via LTO.
At the same time, this also drops libstd's dependency on librt on unices that
are not OSX because the library is only used by extra::time (and now the
dependency is listed in that module instead).
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