87 Commits

Author SHA1 Message Date
Andrew Kelley
cf4bccf765
improvements targeted at improving async functions
* Reuse bytes of async function frames when non-async functions
   make `noasync` calls. This prevents explosive stack growth.
 * Zig now passes a stack size argument to the linker when linking ELF
   binaries. Linux ignores this value, but it is available as a program
   header called GNU_STACK. I prototyped some code that memory maps
   extra space to the stack using this program header, but there was
   still a problem when accessing stack memory very far down. Stack
   probing is needed or not working or something. I also prototyped
   using `@newStackCall` to call main and that does work around the
   issue but it also brings its own issues. That code is commented out
   for now in std/special/start.zig. I'm on a plane with no Internet,
   but I plan to consult with the musl community for advice when I get a
   chance.
 * Added `noasync` to a bunch of function calls in std.debug. It's very
   messy but it's a workaround that makes stack traces functional with
   evented I/O enabled. Eventually these will be cleaned up as the root
   bugs are found and fixed. Programs built in blocking mode are
   unaffected.
 * Lowered the default stack size of std.io.InStream (for the async
   version) to 1 MiB instead of 4. Until we figure out how to get
   choosing a stack size working (see 2nd bullet point above), 4 MiB
   tends to cause segfaults due to stack size running out, or usage of
   stack memory too far apart, or something like that.
 * Default thread stack size is bumped from 8 MiB to 16 to match the
   size we give for the main thread. It's planned to eventually remove
   this hard coded value and have Zig able to determine this value
   during semantic analysis, with call graph analysis and function
   pointer annotations and extern function annotations.
2019-09-12 01:40:58 -04:00
LemonBoy
e4c3067617 Fix typo in TLS initialization code 2019-09-09 13:54:31 -04:00
Andrew Kelley
a7fd14096c
fix typo with tls initialization
I tested that hello world cross compiles to armv7 now.

closes #3167
2019-09-04 14:44:16 -04:00
Robin Voetter
df06976e73 Only check for TLS support on arm if TLS segment exists 2019-09-04 17:48:01 +02:00
Robin Voetter
77d04c03e3 Implement remaining requested changes
- Replace @intCast with a checked version (std/debug.zig)
- Replace @intCast with i64() when casting from a smaller type (std/fs/file.zig)
- Replace `nakedcc` with appropriate calling convention for linking with c (std/os/linux/arm-eabi.zig)
- Only check if hwcap contains TLS when the hwcap field actually exists (std/os/linux/tls.zig)
2019-09-04 16:23:25 +02:00
Robin Voetter
6a76298740 Add missing clobbers on arm-eabi and arm64 syscall conventions 2019-09-04 15:59:51 +02:00
Robin Voetter
4b8325f381 Remove unneeded os check 2019-08-30 13:02:15 +02:00
Robin Voetter
c1f8b201a1 Improve comments near un-implemented functionality 2019-08-30 12:58:44 +02:00
Robin Voetter
2323da3a68 add __aeabi_read_tp 2019-08-29 18:12:58 +02:00
Robin Voetter
b3ac323a44 TLS initialization, clone definition and _start functionality 2019-08-29 01:14:43 +02:00
Robin Voetter
50c37c75d1 add arm32 syscall conventions 2019-08-28 17:41:49 +02:00
Andrew Kelley
b735764898
different array literal syntax when inferring the size
old syntax:  []i32{1, 2, 3}
new syntax: [_]i32{1, 2, 3}

closes #1797
2019-06-09 19:26:32 -04:00
LemonBoy
46cbed621b Move dl_iterate_phdr to os.zig 2019-05-31 11:59:53 +02:00
Andrew Kelley
bfc86776d5
run zig fmt to update use to usingnamespace 2019-05-29 19:09:58 -04:00
Andrew Kelley
0c6ab61b22
tests passing on linux 2019-05-26 23:35:26 -04:00
Andrew Kelley
2b42e910bf
behavior tests passing on Linux 2019-05-26 19:56:37 -04:00
Andrew Kelley
2f040a23c8
clean up references to os 2019-05-26 18:32:44 -04:00
Andrew Kelley
7cb6279ac0
clean up references to posix 2019-05-26 18:32:44 -04:00
Andrew Kelley
3d61e42282
rename "posix" to "bits" 2019-05-26 18:32:44 -04:00
Andrew Kelley
17b0166e00
do Jay's suggestion with posix/os API naming & layout 2019-05-26 18:32:44 -04:00
Andrew Kelley
2def23063f
more progress. moving windows API layer to its own file 2019-05-26 18:32:44 -04:00
Andrew Kelley
daae7e1f5a
more progress on posix API layer
see #2380
2019-05-26 18:32:43 -04:00
Andrew Kelley
67726e36b0
extract posix functions from std/os.zig to std/os/posix.zig
See #2380
2019-05-26 18:32:40 -04:00
emekoi
1c73c08298 ran zig fmt on stdlib 2019-05-19 16:33:31 -04:00
daurnimator
e30cd800e2 std: update linux syscalls to 5.1 2019-05-16 12:38:40 -04:00
Andrew Kelley
c1793d6106
zig fmt on the standard library 2019-05-12 12:56:01 -04:00
LemonBoy
043bd71621 Add ARCH_SET_* definitions for x86_64 2019-05-07 13:19:38 +02:00
LemonBoy
b1db696c10 Less error messages
Decrease the overall size of the binary, programming errors are caught
with unreachable.
2019-05-07 13:09:20 +02:00
LemonBoy
cfcf02489d std: Implement on-demand TLS allocation 2019-05-07 13:09:19 +02:00
LemonBoy
d8ab301aa8 std: Implement TLS support for Linux
Tested on x86_64, i386, ARM, AARCH64
2019-05-07 13:09:18 +02:00
Andrew Kelley
7432fb04d6
Merge pull request #2354 from LemonBoy/iterate_phdr_impl
dl_iterate_phdr implementation
2019-05-06 15:48:37 -04:00
LemonBoy
a095db0df7 Add a test case 2019-05-06 18:30:49 +02:00
daurnimator
217b95da31
std: add msghdr_const
As `iovec_const` is to `iovec`, `msghdr_const` is to `msghdr`
2019-04-21 21:53:24 +10:00
daurnimator
9babcac7a6
std: improve msghdr definition 2019-04-21 21:50:48 +10:00
Andrew Kelley
e402455704
rename std lib files to new convention 2019-03-02 16:46:04 -05:00
Andrew Kelley
76b4e49178
add mprotect syscall 2019-02-28 20:11:36 -05:00
Andrew Kelley
ade10387a5
breaking changes to the way targets work in zig
* CLI: `-target [name]` instead of `--target-*` args.
   This matches clang's API.
 * `builtin.Environ` renamed to `builtin.Abi`
   - likewise `builtin.environ` renamed to `builtin.abi`
 * stop hiding the concept of sub-arch. closes #1526
 * `zig targets` only shows available targets. closes #438
 * include all targets in readme, even those that don't
   print with `zig targets` but note they are Tier 4
 * refactor target.cpp and make the naming conventions
   more consistent
 * introduce the concept of a "default C ABI" for a given
   OS/Arch combo. As a rule of thumb, if the system compiler
   is clang or gcc then the default C ABI is the gnu ABI.
2019-02-26 15:58:10 -05:00
Andrew Kelley
c2db077574
std.debug.assert: remove special case for test builds
Previously, std.debug.assert would `@panic` in test builds,
if the assertion failed. Now, it's always `unreachable`.

This makes release mode test builds more accurately test
the actual code that will be run.

However this requires tests to call `std.testing.expect`
rather than `std.debug.assert` to make sure output is correct.

Here is the explanation of when to use either one, copied from
the assert doc comments:

Inside a test block, it is best to use the `std.testing` module
rather than assert, because assert may not detect a test failure
in ReleaseFast and ReleaseSafe mode. Outside of a test block, assert
is the correct function to use.

closes #1304
2019-02-08 18:23:38 -05:00
Andrew Kelley
56a8f2b018
fix @intCast not catching negative numbers to unsigned 2018-11-24 14:36:16 -05:00
Duncan
e9b47d960b Fix setsockopt syscall on linux 2018-11-18 10:45:38 -05:00
Jimmi Holst Christensen
8139c5a516
New Zig formal grammar (#1685)
Reverted #1628 and changed the grammar+parser of the language to not allow certain expr where types are expected
2018-11-13 05:08:37 -08:00
Andrew Kelley
2b395d4ede
remove @minValue,@maxValue; add std.math.minInt,maxInt
closes #1466
closes #1476
2018-10-26 15:01:51 -04:00
Jimmi Holst Christensen
378d3e4403
Solve the return type ambiguity (#1628)
Changed container and initializer syntax
* <container> { ... } -> <container> . { ... }
* <exrp> { ... } -> <expr> . { ...}
2018-10-15 09:51:15 -04:00
Andrew Kelley
d40c4e7c89
Merge pull request #1429 from shawnl/arm64
initial arm64 support
2018-10-06 00:11:39 -04:00
Shawn Landden
2d27341724 arm64: respond to code review 2018-10-06 03:31:52 +00:00
Andrew Kelley
66cb75d114
std.Mutex: implement blocking mutexes on linux
closes #1463

Thanks to Shawn Landden for the original pull request.
This commit is based on that code.
2018-10-03 13:19:10 -04:00
Andrew Kelley
acefcdbca5
add std.os.linux.vfork and std.os.linux.exit_group 2018-10-02 14:08:32 -04:00
Andrew Kelley
9d4eaf1e07
update std lib API for I/O
std.io.FileInStream -> std.os.File.InStream
std.io.FileInStream.init(file) -> file.inStream()
std.io.FileOutStream -> std.os.File.OutStream
std.io.FileOutStream.init(file) -> file.outStream()

remove a lot of error code possibilities from os functions

std.event.net.socketRead -> std.event.net.read
std.event.net.socketWrite -> std.event.net.write
add std.event.net.readv
add std.event.net.writev
add std.event.net.readvPosix
add std.event.net.writevPosix
add std.event.net.OutStream
add std.event.net.InStream

add std.event.io.InStream
add std.event.io.OutStream
2018-09-30 17:28:35 -04:00
Andrew Kelley
9485043b3c
fix implicit casting to *c_void
closes #1588

also some small std lib changes regarding posix sockets
and one doc typo fix
2018-09-26 11:06:09 -04:00
Shawn Landden
17cb69cebc fix elf auxv handling
Auxillery vectors are not guaranteed to be in any order, this
just happens to work on x86_64.
2018-09-08 14:47:21 +00:00