a1f286bdaf
don't drop uninitialised memory when pushing to stack
2015-08-26 20:42:33 +02:00
96a31d2443
remove stray import
2015-08-26 20:41:12 +02:00
878a6fefc3
simplify Valgrind wrapper
2015-08-26 00:51:19 +02:00
5411f10460
use Void to ensure closure diverges
2015-08-26 00:51:18 +02:00
c83143511e
core::atomic -> core::sync::atomic
2015-08-26 00:20:23 +02:00
e290a8bbaf
remove `extern crate core` and prelude imports
...
the latest Rust nightly makes this unnecessary
2015-08-26 00:19:53 +02:00
189edae3cf
add #![feature(core_prelude)]
2015-07-20 20:54:41 -04:00
6d1c5d0df1
it's fine to inline a simple FFI call
2015-04-27 17:19:13 +02:00
2736479db0
fix license header
2015-04-23 01:24:58 +02:00
3f0ec83bf3
remove valgrind_stack_change
...
This is a leftover from when we exposed these APIs to consumers, we
don't actually use this function.
2015-04-23 01:24:04 +02:00
d0ee592ba1
use the libc crate from cargo
2015-04-23 01:14:01 +02:00
418c53797e
x86 support
...
ref #1
2015-04-16 13:15:46 -04:00
52325b07c0
comment fix: it's 8ns *faster*
2015-04-16 12:21:39 -04:00
a1e4c2b745
add Syntastic ASM lint hints
2015-04-16 11:56:45 -04:00
0bebfae21d
more docs!
2015-04-16 10:15:00 -04:00
d627f0d725
big rename — we're libfringe now
2015-04-16 08:11:12 -04:00
af7e9ea67c
add FreeBSD + DragonFlyBSD MAP_STACK workaround
...
http://lists.freebsd.org/pipermail/freebsd-bugs/2011-July/044840.html
according to libgreen, DragonFlyBSD suffers from this too
2015-04-16 07:59:59 -04:00
68f70fb1c9
rename Context::destroy to Context::unwrap, in line with lang conventions
2015-04-16 07:49:13 -04:00
01e57ce9f5
let os::Stack's docs shine through the facade
2015-04-16 07:47:23 -04:00
2266da2f8d
rejig lib.rs a little
2015-04-16 07:45:14 -04:00
fe490275fa
move os::Stack behind the facade, to OsStack
2015-04-16 07:44:07 -04:00
ff25697444
remove StackSource
...
Nothing in this library took StackSources, and it's probably too
high-level a concept to include here. Maybe later.
2015-04-16 07:42:16 -04:00
bdb6e0bd8b
let StackSource::get_stack take &mut self
2015-04-16 07:35:29 -04:00
9bb0ce483d
derive Copy and Clone for os::StackSource
2015-04-16 07:33:27 -04:00
a389576d0f
document os
2015-04-16 07:30:53 -04:00
f3ee07416d
require Stack::Error to implement Debug + Display
2015-04-16 07:27:14 -04:00
cbfb62e62f
only expose context and stack through the facade
...
It's fairly pointless to have submodules when there are only three
items.
2015-04-16 07:25:05 -04:00
0dd6c8bc32
pass STACK_ALIGN through without exposing it
2015-04-16 07:24:15 -04:00
7adb9e7381
implement Debug for all components of Context
2015-04-16 07:24:07 -04:00
519d86ca4c
implement Send where applicable
2015-04-16 07:23:57 -04:00
7271fe1724
there is no point in Registers being Copy + Clone
2015-04-16 07:23:56 -04:00
222ab0eaa9
make Context::destroy inlineable
2015-04-16 06:43:09 -04:00
6f750ab484
move all OS-related code into src/os
2015-04-16 06:42:31 -04:00
f7ab28de4b
move all the common arch stuff into a module of its own
2015-04-16 06:34:03 -04:00
b7624aa49a
uintptr_t is pointless when usize is the same anyway
2015-04-16 06:20:46 -04:00
997a4a7765
move architecture specifics into arch directory
2015-04-16 06:17:03 -04:00
f24e8e7911
add license headers to every file
2015-04-16 06:08:44 -04:00
cbc10fd311
cache page_size
...
page_size is used in every nearly every pointer calculation in os.rs,
and the Stack methods are called fairly often. It's definitely not worth
spilling registers for to call out to a libc function.
With this change, page_size becomes effectively free. It is cached in an
atomic usize, with relaxed ordering, so no actual atomic operations are
involved.
Benchmark:
```
test bench_page_size ... bench: 5 ns/iter (+/- 1)
test bench_page_size_cached ... bench: 0 ns/iter (+/- 0)
```
2015-04-16 05:52:56 -04:00
52c0c92cd8
move OS specifics into sys
2015-04-16 05:49:34 -04:00
2c3a203f57
rearrange the os::{Stack, StackSource} code a little
2015-04-16 05:34:09 -04:00
8dd3044da5
don't re-export os::unix internals
2015-04-16 05:34:09 -04:00
cf33440503
include valgrind.h, so we don't depend on Valgrind at build time
2015-04-16 04:32:56 -04:00
b8211689fa
return a Result from StackSource::get_stack with an associated Error
...
fix #7
2015-04-16 04:14:18 -04:00
42db0ee5b1
loosen the lifetime bounds on Context
...
fix #6
ref #3
2015-04-16 04:01:02 -04:00
195350863a
make Valgrind optional
2015-04-16 03:22:57 -04:00
2760a0a7aa
move Valgrind handling into Context
...
fix #3
This takes all Valgrind functionality private again.
Valgrind stack registrations are now associated with a Context, not with
a Stack. This makes sense, since it's only actually a stack when a
Context is running on it. Perhaps Valgrind will even be able to detect
early stack frees now.
2015-04-16 02:59:58 -04:00
a04117f955
use Display for displaying IoErrors
2015-04-16 02:16:08 -04:00
7e0b126f42
separate all the libc interaction out per OS
...
We're now handling more of this ourselves, and leaving less to libstd.
Hopefully, we'll eventually break free of libstd, leaving a
highly-focused low-level library that retains all its conveniences in
freestanding environments.
2015-04-16 02:16:08 -04:00
46b2a4007b
improve the assembly documentation
2015-04-16 00:22:50 -04:00
d25f43d4d5
add license headers to the assembly files
2015-04-16 00:16:23 -04:00
5c252bdef5
document Stack and StackSource
2015-04-15 23:38:07 -04:00
5b6aa23731
pass os::Stack addresses to Valgrind in the right order
2015-04-15 22:48:42 -04:00
04bbeb88f4
add valgrind_stack_change
...
Unlike valgrind_stack_register, this won't automatically swap
if `start > end`. It's probably wiser to pretend it doesn't swap at all.
2015-04-15 22:45:50 -04:00
476a63b817
move the Valgrind doc-comments to Rust-land, where they actually matter
2015-04-15 22:41:34 -04:00
14887b4dd0
Valgrind doesn't actually care about the order
2015-04-15 22:40:16 -04:00
9cbb2819ca
match the internal Valgrind function names to the macro names
2015-04-15 22:30:07 -04:00
db6a2ff89b
factor Valgrind support out and expose it
...
Now other Stack / StackSource implementations can use the same Valgrind
code. Ref #3 .
2015-04-15 22:25:52 -04:00
904da1a1c8
use Rust types for Valgrind, and use u32 for stack IDs
2015-04-15 22:22:02 -04:00
7167b0b570
add Context::destroy
2015-04-15 21:54:56 -04:00
31652d7b8f
limit compilation of arch to x86_64
...
the current code only supports x86_64 (#1 ), and we want to fail hard on
any other architecture for now.
2015-04-15 21:52:08 -04:00
6d56cc593e
feature-flag os, but leave it enabled by default
2015-04-15 21:51:37 -04:00
54b34383e3
parametrise Context on Stack
2015-04-15 21:51:37 -04:00
8dc53c3125
make Context::new take a stack, instead of creating one
2015-04-15 19:35:27 -04:00
27318bc271
rename platform to os
2015-04-15 19:35:27 -04:00
5ae54da9c2
make context public
2015-04-15 19:35:27 -04:00
9855084890
make stack public
2015-04-15 19:35:27 -04:00
7aa58f43f7
add StackSource and implement it for platform::Stack
2015-04-15 19:35:27 -04:00
f620005d0f
move the example to the examples dir
2015-04-15 19:35:27 -04:00
5c5f5095c3
move arch::{initialize_call_frame, swap} to inherent mthods of Registers
...
they're now Registers::{new, swap}, because they're
already effectively a constructor and a method.
2015-04-15 19:35:27 -04:00
ae00fa2346
document why we're not using a straigh `ret`
2015-04-15 02:06:52 -04:00
d06e7c7cdd
fix the copy impl for Registers
2015-04-15 01:23:33 -04:00
884496c6b9
document the assembly
2015-03-27 03:33:20 -04:00
a39493d740
rewrite platform.rs to use mmap directly
2015-03-27 02:52:25 -04:00
b0dcc65304
Rust updates
2015-03-03 01:53:04 -05:00
8515bf0fa1
closure syntax changed
2015-02-23 23:14:58 -05:00
e51cfa1b7b
no_std is a feature flag now
2015-02-23 23:13:25 -05:00
a54e573073
Rust updates
2015-02-02 14:17:23 -05:00
3f76c4baea
use std in test configurations
...
this makes `cargo test` and `cargo bench` work cleanly, for one.
2015-01-14 11:27:43 +01:00
40d0923704
add AVX registers to clobbers, do some formatting
...
cover ALL THE REGISTERS. also added rbp, rsp in a comment for
completeness.
2015-01-14 11:27:43 +01:00
299a0a5d98
complete rewrite!
...
featuring 7ns inlineable context switches, no more separately-built
assembly objects, and a vastly nicer interface.
incontext/outcontext are no more, context switch calls now take a single
context structure, which functions as both.
everything now also functions without any heap allocations -- for the
context setup, only an FnOnce() value is necessary.
2015-01-14 11:27:43 +01:00
0729ca8648
yay, Rust beta…
2015-01-13 08:38:52 +01:00
fec3f2eaef
Rust updates
2015-01-09 22:45:39 +01:00
c06c5ea7a0
typo
2014-12-25 12:25:11 +01:00
612e854acb
move {get,set}_sp_limit into Rust-land
2014-12-25 12:24:02 +01:00
b961956ea5
Rust updates (MapOption fixes)
2014-12-25 11:50:48 +01:00
59e723d099
free ourselves from the shackles of libstd
2014-12-24 07:28:21 +01:00
a94bc324fe
move stack creation / destruction into platform
2014-12-24 07:07:25 +01:00
3957ac99ae
use arch::uintptr_t instead of libc::uintptr_t
2014-12-24 06:53:36 +01:00
24b7aee96f
u64 -> uintptr_t
2014-12-24 06:52:52 +01:00
99db603d63
Stack.top returns a mutable pointer, so it should take &mut self
2014-12-24 06:51:46 +01:00
e0f2d48196
sneak an extra argument in by using rbx for the jump target
2014-12-24 06:48:49 +01:00
3d35f5280d
change the prefix from lwut_ to lwt_
...
we'll be using a lot of this code in kernelmode too, later.
2014-12-24 06:48:08 +01:00
c209eed3a6
top of stack is mutable
2014-12-24 06:44:03 +01:00
621bd9c9ab
don't deref in the macros
2014-12-24 06:44:03 +01:00
5a06b04a6a
factor macros out and generalise them
2014-12-24 06:44:03 +01:00
791173fd97
refactoring!
2014-12-24 06:44:03 +01:00
555a3d73c0
rename platform.s to arch.s
2014-12-24 04:16:57 +01:00
e9d6146b5b
initial commit
2014-12-23 04:27:28 +01:00
John Ericson
edef