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diff --git a/Cargo.toml b/Cargo.toml
index 72ffe066caa54ae8579959d9f7a28d7a00aefdc7..8553391fba139e3dce92c1a7fa3b267b2a2e2cd9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -39,7 +39,7 @@ optional = true
sc = "0.2.2"
[target.'cfg(target_os = "redox")'.dependencies]
-redox_syscall = { git = "https://gitlab.redox-os.org/redox-os/syscall", rev = "0e1e7d5d" }
+redox_syscall = { git = "https://gitlab.redox-os.org/redox-os/syscall", rev = "a0ea09ceb3380b1d1e878bb18886e13742d34e8a" }
spin = "0.4.10"
[features]
diff --git a/redoxer.sh b/redoxer.sh
index 71dc5c6628930dfe06e8199c52000954cdcb2a71..fcb352c742b3f9740a918b134c503489215be81f 100755
--- a/redoxer.sh
+++ b/redoxer.sh
@@ -2,7 +2,7 @@
set -e
-if [[ "$(cargo install --list | grep '^redoxer ')" != "redoxer "* ]]
+if ! which redoxer
then
cargo install redoxer
fi
diff --git a/src/header/sys_mman/linux.rs b/src/header/sys_mman/linux.rs
index 43e04de579b1259f9ee7fa709bd1458c232cd727..1a8fb449692a3cbde3eb15b8cd33e48d048ab973 100644
--- a/src/header/sys_mman/linux.rs
+++ b/src/header/sys_mman/linux.rs
@@ -4,3 +4,6 @@ pub const PROT_READ: c_int = 0x0001;
pub const PROT_WRITE: c_int = 0x0002;
pub const PROT_EXEC: c_int = 0x0004;
pub const PROT_NONE: c_int = 0x0000;
+
+pub const MAP_FIXED: c_int = 0x0010;
+pub const MAP_FIXED_NOREPLACE: c_int = 0x100000;
diff --git a/src/header/sys_mman/mod.rs b/src/header/sys_mman/mod.rs
index 27b36e5b66b6b1380553812243f139c839d45f10..de9f15ebfa0c454bb7a9186377341864b1e3a4f4 100644
--- a/src/header/sys_mman/mod.rs
+++ b/src/header/sys_mman/mod.rs
@@ -17,7 +17,6 @@ pub mod sys;
pub const MAP_SHARED: c_int = 0x0001;
pub const MAP_PRIVATE: c_int = 0x0002;
pub const MAP_TYPE: c_int = 0x000F;
-pub const MAP_FIXED: c_int = 0x0010;
pub const MAP_ANON: c_int = 0x0020;
pub const MAP_ANONYMOUS: c_int = MAP_ANON;
diff --git a/src/header/sys_mman/redox.rs b/src/header/sys_mman/redox.rs
index c58f53fe830b7d42236e0e289eb3ac402cd7d98a..58a3aef0563ee0cd7eff905f670b6d8025d19257 100644
--- a/src/header/sys_mman/redox.rs
+++ b/src/header/sys_mman/redox.rs
@@ -4,3 +4,6 @@ pub const PROT_NONE: c_int = 0x0000;
pub const PROT_EXEC: c_int = 0x0001;
pub const PROT_WRITE: c_int = 0x0002;
pub const PROT_READ: c_int = 0x0004;
+
+pub const MAP_FIXED: c_int = 0x0004;
+pub const MAP_FIXED_NOREPLACE: c_int = 0x000C;
diff --git a/src/platform/redox/mod.rs b/src/platform/redox/mod.rs
index 58117dd3205a1c9c1bd012e2cbb109caa5ee4303..adc0152e272bf2fc1b3d85603a5f4422e997aeb5 100644
--- a/src/platform/redox/mod.rs
+++ b/src/platform/redox/mod.rs
@@ -1,7 +1,7 @@
use core::{mem, ptr, result::Result as CoreResult, slice};
use syscall::{
self,
- data::{Map, Stat as redox_stat, StatVfs as redox_statvfs, TimeSpec as redox_timespec},
+ data::{Map2, Stat as redox_stat, StatVfs as redox_statvfs, TimeSpec as redox_timespec},
PtraceEvent, Result,
};
@@ -658,19 +658,20 @@ impl Pal for Sys {
}
unsafe fn mmap(
- _addr: *mut c_void,
+ addr: *mut c_void,
len: usize,
prot: c_int,
flags: c_int,
fildes: c_int,
off: off_t,
) -> *mut c_void {
- let map = Map {
+ let map = Map2 {
offset: off as usize,
size: len,
flags: syscall::MapFlags::from_bits_truncate(
((prot as usize) << 16) | ((flags as usize) & 0xFFFF),
),
+ address: addr as usize,
};
if flags & MAP_ANON == MAP_ANON {
@@ -682,13 +683,13 @@ impl Pal for Sys {
return !0 as *mut c_void;
}
- let addr = e(syscall::fmap(fd, &map)) as *mut c_void;
+ let addr = e(syscall::fmap2(fd, &map)) as *mut c_void;
let _ = syscall::close(fd);
addr
} else {
- e(syscall::fmap(fildes as usize, &map)) as *mut c_void
+ e(syscall::fmap2(fildes as usize, &map)) as *mut c_void
}
}
@@ -713,8 +714,8 @@ impl Pal for Sys {
*/
}
- unsafe fn munmap(addr: *mut c_void, _len: usize) -> c_int {
- if e(syscall::funmap(addr as usize)) == !0 {
+ unsafe fn munmap(addr: *mut c_void, len: usize) -> c_int {
+ if e(syscall::funmap2(addr as usize, len)) == !0 {
return !0;
}
0
@@ -995,7 +996,6 @@ impl Pal for Sys {
let mut sessions = state.sessions.lock();
if let Ok(session) = ptrace::get_session(&mut sessions, pid) {
if options & sys_wait::WNOHANG != sys_wait::WNOHANG {
- let _ = (&mut &session.tracer).write(&syscall::PTRACE_FLAG_WAIT);
let mut _event = PtraceEvent::default();
let _ = (&mut &session.tracer).read(&mut _event);
diff --git a/src/platform/redox/ptrace.rs b/src/platform/redox/ptrace.rs
index 665f5dcd002580614ddae309ca34d6848ae38958..508d98fe44b11d45e71bc8aebd2b138a52c20535 100644
--- a/src/platform/redox/ptrace.rs
+++ b/src/platform/redox/ptrace.rs
@@ -64,7 +64,7 @@ pub fn get_session(
first: true,
tracer: File::open(
&CString::new(format!("proc:{}/trace", pid)).unwrap(),
- NEW_FLAGS | fcntl::O_NONBLOCK,
+ NEW_FLAGS,
)?,
mem: File::open(
&CString::new(format!("proc:{}/mem", pid)).unwrap(),
diff --git a/tests/Makefile b/tests/Makefile
index a1f07bb9a2e11141e64e18a217e716132b0cd32f..e5de5e3aaec8cd1996820f1c73b2825815f2b017 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -19,7 +19,7 @@ EXPECT_NAMES=\
math \
netdb/getaddrinfo \
netdb/netdb \
- ptrace \
+ ptrace \
regex \
select \
setjmp \
@@ -76,6 +76,7 @@ EXPECT_NAMES=\
string/strtok_r \
string/strsignal \
strings \
+ sys_mman \
time/asctime \
time/gmtime \
time/localtime \
diff --git a/tests/sys_mman.c b/tests/sys_mman.c
new file mode 100644
index 0000000000000000000000000000000000000000..2e3ddaa68eae8ab8ddfe293e211f9bf5f0ea67c9
--- /dev/null
+++ b/tests/sys_mman.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#include "test_helpers.h"
+
+int main() {
+ int page_size = getpagesize();
+ printf("Page size: %d\n", page_size);
+
+ puts("Mapping 1 page of memory...");
+ char *map1 = mmap((void *) 0x200000000, (size_t) page_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE, -1, 0);
+ puts("Mapping 3 pages of memory...");
+ char *map2 = mmap(map1 + page_size, (size_t) page_size * 3, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE, -1, 0);
+
+ ERROR_IF(mmap, map1, == MAP_FAILED);
+ ERROR_IF(mmap, map2, == MAP_FAILED);
+
+ puts("Randomizing mapping #1");
+ for (int i = 0; i < page_size; ++i) {
+ map1[i] = (char) (rand() & 0xFF);
+ }
+ puts("Randomizing mapping #2");
+ for (int i = 0; i < page_size * 3; ++i) {
+ map2[i] = (char) (rand() & 0xFF);
+ }
+
+ puts("Unmapping page 2 of map2");
+ munmap(map2 + page_size, page_size);
+
+ puts("Randomizing page 1 of mapping #2");
+ for (int i = 0; i < page_size; ++i) {
+ map2[i] = (char) (rand() % 256);
+ }
+
+ puts("Randomizing page 3 of mapping #2");
+ for (int i = 0; i < page_size; ++i) {
+ map2[page_size * 2 + i] = (char) (rand() % 256);
+ }
+
+ // Page fault:
+ // map2[page_size] = 0;
+
+ puts("Unmapping it all at once!");
+ munmap(map1, (size_t) page_size * 4);
+
+ // Page fault:
+ // *map2 = 0;
+}