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0.3.0: converge relibc to upstream 0.6.0 + Red Bear patches

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This commit is contained in:
vasilito
2026-07-06 19:13:08 +03:00
parent 1a0edd8eeb
commit 4ef7e57571
1466 changed files with 75236 additions and 13644 deletions
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src/header/sys_mman/cbindgen.toml
+15 -8
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@@ -1,14 +1,21 @@
sys_includes = ["stdint.h", "sys/types.h"]
include_guard = "_SYS_MMAN_H"
trailer = "#include <bits/sys/mman.h>"
# POSIX header spec: https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/sys_mman.h.html
#
# Spec quotations relating to includes:
# - "The <sys/mman.h> header shall define the mode_t, off_t, and size_t types as described in <sys/types.h>."
# - "The <sys/mman.h> header shall define the following symbolic constants as described in <fcntl.h>"
# - "Inclusion of the <sys/mman.h> header may make visible all symbols from the <fcntl.h> header."
sys_includes = ["sys/types.h", "fcntl.h"]
include_guard = "_RELIBC_SYS_MMAN_H"
after_includes = """
#define MAP_FAILED ((void *) -1)
"""
language = "C"
style = "Tag"
no_includes = true
no_includes = false
cpp_compat = true
[defines]
"target_os=linux" = "__linux__"
"target_os=redox" = "__redox__"
# make size_t actually size_t instead of uintptr_t (which would require stdint.h)
usize_is_size_t = true
[enum]
prefix_with_name = true
src/header/sys_mman/linux.rs
+9 -1
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@@ -1,4 +1,4 @@
use crate::platform::types::*;
use crate::platform::types::c_int;
pub const PROT_READ: c_int = 0x0001;
pub const PROT_WRITE: c_int = 0x0002;
@@ -7,3 +7,11 @@ pub const PROT_NONE: c_int = 0x0000;
pub const MAP_FIXED: c_int = 0x0010;
pub const MAP_FIXED_NOREPLACE: c_int = 0x100000;
pub const MAP_POPULATE: c_int = 0x008000;
pub const MAP_HUGETLB: c_int = 0x40000;
pub const MAP_NORESERVE: c_int = 0x4000;
pub const MADV_HUGEPAGE: c_int = 14;
pub const MADV_NOHUGEPAGE: c_int = 15;
pub const MADV_DONTDUMP: c_int = 16;
pub const MADV_DODUMP: c_int = 17;
src/header/sys_mman/mod.rs
+116 -31
View File
@@ -1,7 +1,15 @@
//! `sys/mman.h` implementation.
//!
//! See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/sys_mman.h.html>.
use crate::{
c_str::{CStr, CString},
error::{Errno, ResultExt},
header::{fcntl, unistd},
platform::{types::*, Pal, Sys},
platform::{
ERRNO, Pal, Sys,
types::{c_char, c_int, c_void, mode_t, off_t, size_t},
},
};
pub use self::sys::*;
@@ -14,27 +22,62 @@ pub mod sys;
#[path = "redox.rs"]
pub mod sys;
pub const MADV_NORMAL: c_int = 0;
pub const MADV_RANDOM: c_int = 1;
pub const MADV_SEQUENTIAL: c_int = 2;
pub const MADV_WILLNEED: c_int = 3;
pub const MADV_DONTNEED: c_int = 4;
pub const MAP_SHARED: c_int = 0x0001;
pub const MAP_PRIVATE: c_int = 0x0002;
pub const MAP_TYPE: c_int = 0x000F;
pub const MAP_ANON: c_int = 0x0020;
pub const MAP_ANONYMOUS: c_int = MAP_ANON;
pub const MAP_STACK: c_int = 0x20000;
/// cbindgen:ignore
pub const MAP_FAILED: *mut c_void = usize::wrapping_neg(1) as *mut c_void;
pub const MREMAP_MAYMOVE: c_int = 1;
pub const MS_ASYNC: c_int = 0x0001;
pub const MS_INVALIDATE: c_int = 0x0002;
pub const MS_SYNC: c_int = 0x0004;
// #[no_mangle]
pub extern "C" fn mlock(addr: *const c_void, len: usize) -> c_int {
unimplemented!();
pub const MCL_CURRENT: c_int = 1;
pub const MCL_FUTURE: c_int = 2;
pub const POSIX_MADV_NORMAL: c_int = 0;
pub const POSIX_MADV_RANDOM: c_int = 1;
pub const POSIX_MADV_SEQUENTIAL: c_int = 2;
pub const POSIX_MADV_WILLNEED: c_int = 3;
pub const POSIX_MADV_WONTNEED: c_int = 4;
/// Non-POSIX, see <https://www.man7.org/linux/man-pages/man2/madvise.2.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn madvise(addr: *mut c_void, len: size_t, flags: c_int) -> c_int {
unsafe { Sys::madvise(addr, len, flags) }
.map(|()| 0)
.or_minus_one_errno()
}
// #[no_mangle]
pub extern "C" fn mlockall(flags: c_int) -> c_int {
unimplemented!();
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/mlock.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn mlock(addr: *const c_void, len: size_t) -> c_int {
unsafe { Sys::mlock(addr, len) }
.map(|()| 0)
.or_minus_one_errno()
}
#[no_mangle]
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/mlockall.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn mlockall(flags: c_int) -> c_int {
unsafe { Sys::mlockall(flags) }
.map(|()| 0)
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/mmap.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn mmap(
addr: *mut c_void,
len: size_t,
@@ -43,42 +86,82 @@ pub unsafe extern "C" fn mmap(
fildes: c_int,
off: off_t,
) -> *mut c_void {
Sys::mmap(addr, len, prot, flags, fildes, off)
match unsafe { Sys::mmap(addr, len, prot, flags, fildes, off) } {
Ok(ptr) => ptr,
Err(Errno(errno)) => {
ERRNO.set(errno);
MAP_FAILED
}
}
}
#[no_mangle]
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/mprotect.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn mprotect(addr: *mut c_void, len: size_t, prot: c_int) -> c_int {
Sys::mprotect(addr, len, prot)
unsafe { Sys::mprotect(addr, len, prot) }
.map(|()| 0)
.or_minus_one_errno()
}
#[no_mangle]
/// Non-POSIX, see <https://www.man7.org/linux/man-pages/man2/mremap.2.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn mremap(
old_address: *mut c_void,
old_size: size_t,
new_size: size_t,
flags: c_int,
mut __valist: ...
) -> *mut c_void {
let new_address = unsafe { __valist.next_arg::<*mut c_void>() };
match unsafe { Sys::mremap(old_address, old_size, new_size, flags, new_address) } {
Ok(ptr) => ptr,
Err(Errno(errno)) => {
ERRNO.set(errno);
MAP_FAILED
}
}
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/msync.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn msync(addr: *mut c_void, len: size_t, flags: c_int) -> c_int {
Sys::msync(addr, len, flags)
unsafe { Sys::msync(addr, len, flags) }
.map(|()| 0)
.or_minus_one_errno()
}
// #[no_mangle]
pub extern "C" fn munlock(addr: *const c_void, len: usize) -> c_int {
unimplemented!();
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/mlock.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn munlock(addr: *const c_void, len: size_t) -> c_int {
unsafe { Sys::munlock(addr, len) }
.map(|()| 0)
.or_minus_one_errno()
}
// #[no_mangle]
pub extern "C" fn munlockall() -> c_int {
unimplemented!();
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/mlockall.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn munlockall() -> c_int {
unsafe { Sys::munlockall() }
.map(|()| 0)
.or_minus_one_errno()
}
#[no_mangle]
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/munmap.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn munmap(addr: *mut c_void, len: size_t) -> c_int {
Sys::munmap(addr, len)
unsafe { Sys::munmap(addr, len) }
.map(|()| 0)
.or_minus_one_errno()
}
#[cfg(target_os = "linux")]
static SHM_PATH: &'static [u8] = b"/dev/shm/";
static SHM_PATH: &[u8] = b"/dev/shm/";
#[cfg(target_os = "redox")]
static SHM_PATH: &'static [u8] = b"shm:";
static SHM_PATH: &[u8] = b"/scheme/shm/";
unsafe fn shm_path(name: *const c_char) -> CString {
let name_c = CStr::from_ptr(name);
let name_c = unsafe { CStr::from_ptr(name) };
let mut path = SHM_PATH.to_vec();
@@ -94,17 +177,19 @@ unsafe fn shm_path(name: *const c_char) -> CString {
path.push(b);
}
CString::from_vec_unchecked(path)
unsafe { CString::from_vec_unchecked(path) }
}
#[no_mangle]
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/shm_open.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn shm_open(name: *const c_char, oflag: c_int, mode: mode_t) -> c_int {
let path = shm_path(name);
fcntl::sys_open(path.as_ptr(), oflag, mode)
let path = unsafe { shm_path(name) };
unsafe { fcntl::open(path.as_ptr(), oflag, mode) }
}
#[no_mangle]
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/shm_unlink.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn shm_unlink(name: *const c_char) -> c_int {
let path = shm_path(name);
unistd::unlink(path.as_ptr())
let path = unsafe { shm_path(name) };
unsafe { unistd::unlink(path.as_ptr()) }
}
src/header/sys_mman/redox.rs
+6 -1
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@@ -1,4 +1,4 @@
use crate::platform::types::*;
use crate::platform::types::c_int;
pub const PROT_NONE: c_int = 0x0000;
pub const PROT_EXEC: c_int = 0x0001;
@@ -7,3 +7,8 @@ pub const PROT_READ: c_int = 0x0004;
pub const MAP_FIXED: c_int = 0x0004;
pub const MAP_FIXED_NOREPLACE: c_int = 0x000C;
pub const MAP_POPULATE: c_int = 0x0001F;
pub const MAP_HUGETLB: c_int = 0x2E;
pub const MADV_DONTDUMP: c_int = 5;
pub const MADV_DODUMP: c_int = 6;