diff --git a/Cargo.lock b/Cargo.lock
index 56d21d541b06e2056ebcf76c682187e8641065d4..3ee7bf6ffcf2955f2493168f216236646a167407 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -11,7 +11,7 @@ name = "ansi_term"
version = "0.11.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -21,7 +21,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "backtrace"
-version = "0.3.14"
+version = "0.3.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -29,7 +29,7 @@ dependencies = [
"cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-demangle 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -37,7 +37,7 @@ name = "backtrace-sys"
version = "0.1.28"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
- "cc 1.0.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
]
@@ -63,14 +63,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
"semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "cc"
-version = "1.0.32"
+version = "1.0.34"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
@@ -85,7 +85,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
"clippy_lints 0.0.209 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
"semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
@@ -104,8 +104,8 @@ dependencies = [
"quine-mc_cluskey 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
"regex-syntax 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
"semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
"toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-normalization 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
"url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -113,7 +113,7 @@ dependencies = [
[[package]]
name = "either"
-version = "1.5.1"
+version = "1.5.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
@@ -121,7 +121,7 @@ name = "error-chain"
version = "0.11.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
- "backtrace 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -161,7 +161,7 @@ name = "itertools"
version = "0.7.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
- "either 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "either 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -171,14 +171,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "kernel"
-version = "0.1.52"
+version = "0.1.53"
dependencies = [
"bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
"clippy 0.0.209 (registry+https://github.com/rust-lang/crates.io-index)",
"goblin 0.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "linked_list_allocator 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "linked_list_allocator 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
"raw-cpuid 4.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.52",
+ "redox_syscall 0.1.53",
"rustc-demangle 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
"slab_allocator 0.3.1",
"spin 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -197,10 +197,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "linked_list_allocator"
-version = "0.6.3"
+version = "0.6.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
- "spin 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "spin 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -267,19 +267,19 @@ version = "4.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "redox_syscall"
-version = "0.1.52"
+version = "0.1.53"
[[package]]
name = "regex"
-version = "1.1.4"
+version = "1.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"aho-corasick 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -329,7 +329,7 @@ version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -339,17 +339,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "serde"
-version = "1.0.89"
+version = "1.0.90"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "serde_derive"
-version = "1.0.89"
+version = "1.0.90"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.30 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -359,14 +359,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
"ryu 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "slab_allocator"
version = "0.3.1"
dependencies = [
- "linked_list_allocator 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "linked_list_allocator 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
"spin 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
]
@@ -380,9 +380,14 @@ name = "spin"
version = "0.4.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
+[[package]]
+name = "spin"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
[[package]]
name = "syn"
-version = "0.15.29"
+version = "0.15.30"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -403,7 +408,7 @@ name = "toml"
version = "0.4.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -454,7 +459,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "winapi"
-version = "0.3.6"
+version = "0.3.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -484,17 +489,17 @@ dependencies = [
"checksum aho-corasick 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "e6f484ae0c99fec2e858eb6134949117399f222608d84cadb3f58c1f97c2364c"
"checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
"checksum autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a6d640bee2da49f60a4068a7fae53acde8982514ab7bae8b8cea9e88cbcfd799"
-"checksum backtrace 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "cd5a90e2b463010cd0e0ce9a11d4a9d5d58d9f41d4a6ba3dcaf9e68b466e88b4"
+"checksum backtrace 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "f106c02a3604afcdc0df5d36cc47b44b55917dbaf3d808f71c163a0ddba64637"
"checksum backtrace-sys 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)" = "797c830ac25ccc92a7f8a7b9862bde440715531514594a6154e3d4a54dd769b6"
"checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
"checksum bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4efd02e230a02e18f92fc2735f44597385ed02ad8f831e7c1c1156ee5e1ab3a5"
"checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"
"checksum cargo_metadata 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)" = "1efca0b863ca03ed4c109fb1c55e0bc4bbeb221d3e103d86251046b06a526bd0"
-"checksum cc 1.0.32 (registry+https://github.com/rust-lang/crates.io-index)" = "ad0daef304fa0b4238f5f7ed7178774b43b06f6a9b6509f6642bef4ff1f7b9b2"
+"checksum cc 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)" = "30f813bf45048a18eda9190fd3c6b78644146056740c43172a5a3699118588fd"
"checksum cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "11d43355396e872eefb45ce6342e4374ed7bc2b3a502d1b28e36d6e23c05d1f4"
"checksum clippy 0.0.209 (registry+https://github.com/rust-lang/crates.io-index)" = "fe56cba96f8d67cd3af996bd2c61fbfea263cc555db9180dc1f7413418454c7d"
"checksum clippy_lints 0.0.209 (registry+https://github.com/rust-lang/crates.io-index)" = "891679ac4d0890425ce9aa4db6ab7c05a60506048fb5e0fc2ae2eeaeb02626e8"
-"checksum either 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c67353c641dc847124ea1902d69bd753dee9bb3beff9aa3662ecf86c971d1fac"
+"checksum either 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "5527cfe0d098f36e3f8839852688e63c8fff1c90b2b405aef730615f9a7bcf7b"
"checksum error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ff511d5dc435d703f4971bc399647c9bc38e20cb41452e3b9feb4765419ed3f3"
"checksum getopts 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)" = "0a7292d30132fb5424b354f5dc02512a86e4c516fe544bb7a25e7f266951b797"
"checksum goblin 0.0.15 (registry+https://github.com/rust-lang/crates.io-index)" = "5e3ba9fec4dc9a09553388bff2724d3bf06bd64013539f2d3e1e3838eefb310a"
@@ -504,7 +509,7 @@ dependencies = [
"checksum itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1306f3464951f30e30d12373d31c79fbd52d236e5e896fd92f96ec7babbbe60b"
"checksum lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bc5729f27f159ddd61f4df6228e827e86643d4d3e7c32183cb30a1c08f604a14"
"checksum libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)" = "bedcc7a809076656486ffe045abeeac163da1b558e963a31e29fbfbeba916917"
-"checksum linked_list_allocator 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "655d57c71827fe0891ce72231b6aa5e14033dae3f604609e6a6f807267c1678d"
+"checksum linked_list_allocator 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "47314ec1d29aa869ee7cb5a5be57be9b1055c56567d59c3fb6689926743e0bea"
"checksum matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
"checksum memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2efc7bc57c883d4a4d6e3246905283d8dae951bb3bd32f49d6ef297f546e1c39"
"checksum percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "31010dd2e1ac33d5b46a5b413495239882813e0369f8ed8a5e266f173602f831"
@@ -515,7 +520,7 @@ dependencies = [
"checksum quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)" = "cdd8e04bd9c52e0342b406469d494fcb033be4bdbe5c606016defbb1681411e1"
"checksum raw-cpuid 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "13b844e4049605ff38fed943f5c7b2c691fad68d9d5bf074d2720554c4e48246"
"checksum raw-cpuid 4.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "90e0d3209fac374e168cef2d8806dde7b31ef0ee82a965bcc0bec562c078a6f5"
-"checksum regex 1.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "2cf47563eeec4ae0b6f5b0e0306024ccef91e779342705bbaa4b6ffc75ad825d"
+"checksum regex 1.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "559008764a17de49a3146b234641644ed37d118d1ef641a0bb573d146edc6ce0"
"checksum regex-syntax 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "dcfd8681eebe297b81d98498869d4aae052137651ad7b96822f09ceb690d0a96"
"checksum rustc-demangle 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "adacaae16d02b6ec37fdc7acfcddf365978de76d1983d3ee22afc260e1ca9619"
"checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
@@ -523,12 +528,13 @@ dependencies = [
"checksum scroll 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2f84d114ef17fd144153d608fba7c446b0145d038985e7a8cc5d08bb0ce20383"
"checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
"checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
-"checksum serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)" = "92514fb95f900c9b5126e32d020f5c6d40564c27a5ea6d1d7d9f157a96623560"
-"checksum serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)" = "bb6eabf4b5914e88e24eea240bb7c9f9a2cbc1bbbe8d961d381975ec3c6b806c"
+"checksum serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)" = "aa5f7c20820475babd2c077c3ab5f8c77a31c15e16ea38687b4c02d3e48680f4"
+"checksum serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)" = "58fc82bec244f168b23d1963b45c8bf5726e9a15a9d146a067f9081aeed2de79"
"checksum serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)" = "5a23aa71d4a4d43fdbfaac00eff68ba8a06a51759a89ac3304323e800c4dd40d"
"checksum smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)" = "c4488ae950c49d403731982257768f48fada354a5203fe81f9bb6f43ca9002be"
"checksum spin 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "ceac490aa12c567115b40b7b7fceca03a6c9d53d5defea066123debc83c5dc1f"
-"checksum syn 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)" = "1825685f977249735d510a242a6727b46efe914bb67e38d30c071b1b72b1d5c2"
+"checksum spin 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "44363f6f51401c34e7be73db0db371c04705d35efbe9f7d6082e03a921a32c55"
+"checksum syn 0.15.30 (registry+https://github.com/rust-lang/crates.io-index)" = "66c8865bf5a7cbb662d8b011950060b3c8743dca141b054bf7195b20d314d8e2"
"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
"checksum toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "758664fc71a3a69038656bee8b6be6477d2a6c315a6b81f7081f591bffa4111f"
"checksum ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "535c204ee4d8434478593480b8f86ab45ec9aae0e83c568ca81abf0fd0e88f86"
@@ -538,7 +544,7 @@ dependencies = [
"checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
"checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
"checksum utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "796f7e48bef87609f7ade7e06495a87d5cd06c7866e6a5cbfceffc558a243737"
-"checksum winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "92c1eb33641e276cfa214a0522acad57be5c56b10cb348b3c5117db75f3ac4b0"
+"checksum winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "f10e386af2b13e47c89e7236a7a14a086791a2b88ebad6df9bf42040195cf770"
"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
"checksum x86 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "178718d3f2c7dd98d44f8e353b0ccc8c89b2e81e31e5eed93e7fdf5f36db7a13"
diff --git a/Cargo.toml b/Cargo.toml
index a6318650a0387004659154f4894731e46726e7ba..0ef936c4b3bffce8d694b722e757a39b10563d0a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
[package]
name = "kernel"
-version = "0.1.52"
+version = "0.1.53"
build = "build.rs"
[lib]
diff --git a/src/context/memory.rs b/src/context/memory.rs
index 3aa5899a540f53d3bc979c72578743eda403c829..c3272e25aedfdba5f5edd9ddbe2b2ceb3687c95f 100644
--- a/src/context/memory.rs
+++ b/src/context/memory.rs
@@ -19,7 +19,7 @@ pub struct Grant {
flags: EntryFlags,
mapped: bool,
//TODO: This is probably a very heavy way to keep track of fmap'd files, perhaps move to the context?
- desc_opt: Option<FileDescriptor>,
+ pub desc_opt: Option<FileDescriptor>,
}
impl Grant {
@@ -133,6 +133,11 @@ impl Grant {
flush_all.flush(&mut active_table);
+ if let Some(desc) = self.desc_opt.take() {
+ //TODO: This imposes a large cost on unmapping, but that cost cannot be avoided without modifying fmap and funmap
+ let _ = desc.close();
+ }
+
self.mapped = false;
}
diff --git a/src/scheme/user.rs b/src/scheme/user.rs
index 65a0dd50a5e3c4640df8c2a4e20654b11cbf5ee2..b3a9e8b7ce53913b148f9c5d09df2ce2562db793 100644
--- a/src/scheme/user.rs
+++ b/src/scheme/user.rs
@@ -30,6 +30,7 @@ pub struct UserInner {
context: Weak<RwLock<Context>>,
todo: WaitQueue<Packet>,
fmap: Mutex<BTreeMap<u64, (Weak<RwLock<Context>>, FileDescriptor, Map)>>,
+ funmap: Mutex<BTreeMap<usize, usize>>,
done: WaitMap<u64, usize>
}
@@ -45,6 +46,7 @@ impl UserInner {
context: context,
todo: WaitQueue::new(),
fmap: Mutex::new(BTreeMap::new()),
+ funmap: Mutex::new(BTreeMap::new()),
done: WaitMap::new()
}
}
@@ -192,7 +194,11 @@ impl UserInner {
if let Some((context_weak, desc, map)) = self.fmap.lock().remove(&packet.id) {
if let Ok(address) = Error::demux(packet.a) {
//TODO: Protect against sharing addresses that are not page aligned
- packet.a = Error::mux(UserInner::capture_inner(&context_weak, address, map.size, map.flags, Some(desc)));
+ let res = UserInner::capture_inner(&context_weak, address, map.size, map.flags, Some(desc));
+ if let Ok(new_address) = res {
+ self.funmap.lock().insert(new_address, address);
+ }
+ packet.a = Error::mux(res);
} else {
let _ = desc.close();
}
@@ -358,6 +364,19 @@ impl Scheme for UserScheme {
result
}
+ fn funmap(&self, new_address: usize) -> Result<usize> {
+ let inner = self.inner.upgrade().ok_or(Error::new(ENODEV))?;
+ let address_opt = {
+ let mut funmap = inner.funmap.lock();
+ funmap.remove(&new_address)
+ };
+ if let Some(address) = address_opt {
+ inner.call(SYS_FUNMAP, address, 0, 0)
+ } else {
+ Err(Error::new(EINVAL))
+ }
+ }
+
fn fpath(&self, file: usize, buf: &mut [u8]) -> Result<usize> {
let inner = self.inner.upgrade().ok_or(Error::new(ENODEV))?;
let address = inner.capture_mut(buf)?;
diff --git a/src/syscall/fs.rs b/src/syscall/fs.rs
index 77a0cb98cfe858aa24dce980368f0cc25e6a0eca..d4ef7f70d4f3f5cab4135b92a15399971970df93 100644
--- a/src/syscall/fs.rs
+++ b/src/syscall/fs.rs
@@ -413,22 +413,47 @@ pub fn funmap(virtual_address: usize) -> Result<usize> {
if virtual_address == 0 {
Ok(0)
} else {
- let contexts = context::contexts();
- let context_lock = contexts.current().ok_or(Error::new(ESRCH))?;
- let context = context_lock.read();
+ let mut desc_opt = None;
- let mut grants = context.grants.lock();
-
- for i in 0 .. grants.len() {
- let start = grants[i].start_address().get();
- let end = start + grants[i].size();
- if virtual_address >= start && virtual_address < end {
- grants.remove(i).unmap();
+ {
+ let contexts = context::contexts();
+ let context_lock = contexts.current().ok_or(Error::new(ESRCH))?;
+ let context = context_lock.read();
- return Ok(0);
+ let mut grants = context.grants.lock();
+
+ for i in 0 .. grants.len() {
+ let start = grants[i].start_address().get();
+ let end = start + grants[i].size();
+ if virtual_address >= start && virtual_address < end {
+ let mut grant = grants.remove(i);
+ if grant.desc_opt.is_some() {
+ desc_opt = grant.desc_opt.take();
+ grant.unmap();
+ break;
+ }
+ }
}
}
- Err(Error::new(EFAULT))
+ if let Some(desc) = desc_opt {
+ let scheme_id = {
+ let description = desc.description.read();
+ description.scheme
+ };
+
+ let scheme = {
+ let schemes = scheme::schemes();
+ let scheme = schemes.get(scheme_id).ok_or(Error::new(EBADF))?;
+ scheme.clone()
+ };
+ let res = scheme.funmap(virtual_address);
+
+ let _ = desc.close();
+
+ res
+ } else {
+ Err(Error::new(EFAULT))
+ }
}
}