diff options
Diffstat (limited to 'vendor/rustix/src/backend/linux_raw/runtime/syscalls.rs')
| -rw-r--r-- | vendor/rustix/src/backend/linux_raw/runtime/syscalls.rs | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/vendor/rustix/src/backend/linux_raw/runtime/syscalls.rs b/vendor/rustix/src/backend/linux_raw/runtime/syscalls.rs index c1ff3d239..1bc461c04 100644 --- a/vendor/rustix/src/backend/linux_raw/runtime/syscalls.rs +++ b/vendor/rustix/src/backend/linux_raw/runtime/syscalls.rs @@ -9,7 +9,8 @@ use crate::backend::c; #[cfg(target_arch = "x86")] use crate::backend::conv::by_mut; use crate::backend::conv::{ - by_ref, c_int, c_uint, ret, ret_c_int, ret_c_int_infallible, ret_error, size_of, zero, + by_ref, c_int, c_uint, ret, ret_c_int, ret_c_int_infallible, ret_error, ret_void_star, size_of, + zero, }; #[cfg(feature = "fs")] use crate::fd::BorrowedFd; @@ -22,6 +23,7 @@ use crate::runtime::{How, Sigaction, Siginfo, Sigset, Stack}; use crate::signal::Signal; use crate::timespec::Timespec; use crate::utils::option_as_ptr; +use core::ffi::c_void; use core::mem::MaybeUninit; #[cfg(target_pointer_width = "32")] use linux_raw_sys::general::__kernel_old_timespec; @@ -263,3 +265,9 @@ unsafe fn sigtimedwait_old( pub(crate) fn exit_group(code: c::c_int) -> ! { unsafe { syscall_noreturn!(__NR_exit_group, c_int(code)) } } + +#[inline] +pub(crate) unsafe fn brk(addr: *mut c::c_void) -> io::Result<*mut c_void> { + // Don't mark this `readonly`, so that loads don't get reordered past it. + ret_void_star(syscall!(__NR_brk, addr)) +} |