edef
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
edef
68f70fb1c9
rename Context::destroy to Context::unwrap, in line with lang conventions
2015-04-16 07:49:13 -04:00
edef
01e57ce9f5
let os::Stack's docs shine through the facade
2015-04-16 07:47:23 -04:00
edef
2266da2f8d
rejig lib.rs a little
2015-04-16 07:45:14 -04:00
edef
fe490275fa
move os::Stack behind the facade, to OsStack
2015-04-16 07:44:07 -04:00
edef
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
edef
bdb6e0bd8b
let StackSource::get_stack take &mut self
2015-04-16 07:35:29 -04:00
edef
9bb0ce483d
derive Copy and Clone for os::StackSource
2015-04-16 07:33:27 -04:00
edef
a389576d0f
document os
2015-04-16 07:30:53 -04:00
edef
f3ee07416d
require Stack::Error to implement Debug + Display
2015-04-16 07:27:14 -04:00
edef
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
edef
0dd6c8bc32
pass STACK_ALIGN through without exposing it
2015-04-16 07:24:15 -04:00
edef
7adb9e7381
implement Debug for all components of Context
2015-04-16 07:24:07 -04:00
edef
519d86ca4c
implement Send where applicable
2015-04-16 07:23:57 -04:00
edef
7271fe1724
there is no point in Registers being Copy + Clone
2015-04-16 07:23:56 -04:00
edef
222ab0eaa9
make Context::destroy inlineable
2015-04-16 06:43:09 -04:00
edef
6f750ab484
move all OS-related code into src/os
2015-04-16 06:42:31 -04:00
edef
f7ab28de4b
move all the common arch stuff into a module of its own
2015-04-16 06:34:03 -04:00
edef
b7624aa49a
uintptr_t is pointless when usize is the same anyway
2015-04-16 06:20:46 -04:00
edef
997a4a7765
move architecture specifics into arch directory
2015-04-16 06:17:03 -04:00
edef
f24e8e7911
add license headers to every file
2015-04-16 06:08:44 -04:00
edef
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
edef
52c0c92cd8
move OS specifics into sys
2015-04-16 05:49:34 -04:00
edef
2c3a203f57
rearrange the os::{Stack, StackSource} code a little
2015-04-16 05:34:09 -04:00
edef
8dd3044da5
don't re-export os::unix internals
2015-04-16 05:34:09 -04:00
edef
cf33440503
include valgrind.h, so we don't depend on Valgrind at build time
2015-04-16 04:32:56 -04:00
edef
b8211689fa
return a Result from StackSource::get_stack with an associated Error
...
fix #7
2015-04-16 04:14:18 -04:00
edef
42db0ee5b1
loosen the lifetime bounds on Context
...
fix #6
ref #3
2015-04-16 04:01:02 -04:00
edef
195350863a
make Valgrind optional
2015-04-16 03:22:57 -04:00
edef
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
edef
a04117f955
use Display for displaying IoErrors
2015-04-16 02:16:08 -04:00
edef
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
edef
46b2a4007b
improve the assembly documentation
2015-04-16 00:22:50 -04:00
edef
d25f43d4d5
add license headers to the assembly files
2015-04-16 00:16:23 -04:00
edef
5c252bdef5
document Stack and StackSource
2015-04-15 23:38:07 -04:00
edef
5b6aa23731
pass os::Stack addresses to Valgrind in the right order
2015-04-15 22:48:42 -04:00
edef
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
edef
476a63b817
move the Valgrind doc-comments to Rust-land, where they actually matter
2015-04-15 22:41:34 -04:00
edef
14887b4dd0
Valgrind doesn't actually care about the order
2015-04-15 22:40:16 -04:00
edef
9cbb2819ca
match the internal Valgrind function names to the macro names
2015-04-15 22:30:07 -04:00
edef
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
edef
904da1a1c8
use Rust types for Valgrind, and use u32 for stack IDs
2015-04-15 22:22:02 -04:00
edef
7167b0b570
add Context::destroy
2015-04-15 21:54:56 -04:00
edef
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
edef
6d56cc593e
feature-flag os, but leave it enabled by default
2015-04-15 21:51:37 -04:00
edef
54b34383e3
parametrise Context on Stack
2015-04-15 21:51:37 -04:00
edef
8dc53c3125
make Context::new take a stack, instead of creating one
2015-04-15 19:35:27 -04:00
edef
27318bc271
rename platform to os
2015-04-15 19:35:27 -04:00
edef
5ae54da9c2
make context public
2015-04-15 19:35:27 -04:00
edef
9855084890
make stack public
2015-04-15 19:35:27 -04:00
edef
7aa58f43f7
add StackSource and implement it for platform::Stack
2015-04-15 19:35:27 -04:00
edef
f620005d0f
move the example to the examples dir
2015-04-15 19:35:27 -04:00
edef
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
edef
ae00fa2346
document why we're not using a straigh ret
2015-04-15 02:06:52 -04:00
edef
d06e7c7cdd
fix the copy impl for Registers
2015-04-15 01:23:33 -04:00
edef
884496c6b9
document the assembly
2015-03-27 03:33:20 -04:00
edef
a39493d740
rewrite platform.rs to use mmap directly
2015-03-27 02:52:25 -04:00
edef
b0dcc65304
Rust updates
2015-03-03 01:53:04 -05:00
edef
8515bf0fa1
closure syntax changed
2015-02-23 23:14:58 -05:00
edef
e51cfa1b7b
no_std is a feature flag now
2015-02-23 23:13:25 -05:00
edef
a54e573073
Rust updates
2015-02-02 14:17:23 -05:00
edef
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
edef
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
edef
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
edef
0729ca8648
yay, Rust beta…
2015-01-13 08:38:52 +01:00
edef
fec3f2eaef
Rust updates
2015-01-09 22:45:39 +01:00
edef
c06c5ea7a0
typo
2014-12-25 12:25:11 +01:00
edef
612e854acb
move {get,set}_sp_limit into Rust-land
2014-12-25 12:24:02 +01:00
edef
b961956ea5
Rust updates (MapOption fixes)
2014-12-25 11:50:48 +01:00
edef
59e723d099
free ourselves from the shackles of libstd
2014-12-24 07:28:21 +01:00
edef
a94bc324fe
move stack creation / destruction into platform
2014-12-24 07:07:25 +01:00
edef
3957ac99ae
use arch::uintptr_t instead of libc::uintptr_t
2014-12-24 06:53:36 +01:00
edef
24b7aee96f
u64 -> uintptr_t
2014-12-24 06:52:52 +01:00
edef
99db603d63
Stack.top returns a mutable pointer, so it should take &mut self
2014-12-24 06:51:46 +01:00
edef
e0f2d48196
sneak an extra argument in by using rbx for the jump target
2014-12-24 06:48:49 +01:00
edef
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
edef
c209eed3a6
top of stack is mutable
2014-12-24 06:44:03 +01:00
edef
621bd9c9ab
don't deref in the macros
2014-12-24 06:44:03 +01:00
edef
5a06b04a6a
factor macros out and generalise them
2014-12-24 06:44:03 +01:00
edef
791173fd97
refactoring!
2014-12-24 06:44:03 +01:00
edef
555a3d73c0
rename platform.s to arch.s
2014-12-24 04:16:57 +01:00
edef
e9d6146b5b
initial commit
2014-12-23 04:27:28 +01:00
