From 6c4b9133f14d4488dc1b86411568b49e99fbe629 Mon Sep 17 00:00:00 2001
From: Jonah Petri <jonah@petri.us>
Date: Tue, 7 Dec 2021 16:57:52 -0500
Subject: uclibc support

---
 src/sys/uio.rs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'src/sys/uio.rs')

diff --git a/src/sys/uio.rs b/src/sys/uio.rs
index 125c2e6c..a1fc8e5f 100644
--- a/src/sys/uio.rs
+++ b/src/sys/uio.rs
@@ -34,6 +34,8 @@ pub fn readv(fd: RawFd, iov: &mut [IoVec<&mut [u8]>]) -> Result<usize> {
 #[cfg_attr(docsrs, doc(cfg(all())))]
 pub fn pwritev(fd: RawFd, iov: &[IoVec<&[u8]>],
                offset: off_t) -> Result<usize> {
+    #[cfg(target_env = "uclibc")]
+    let offset = offset as libc::off64_t; // uclibc doesn't use off_t
     let res = unsafe {
         libc::pwritev(fd, iov.as_ptr() as *const libc::iovec, iov.len() as c_int, offset)
     };
@@ -52,6 +54,8 @@ pub fn pwritev(fd: RawFd, iov: &[IoVec<&[u8]>],
 #[cfg_attr(docsrs, doc(cfg(all())))]
 pub fn preadv(fd: RawFd, iov: &[IoVec<&mut [u8]>],
               offset: off_t) -> Result<usize> {
+    #[cfg(target_env = "uclibc")]
+    let offset = offset as libc::off64_t; // uclibc doesn't use off_t
     let res = unsafe {
         libc::preadv(fd, iov.as_ptr() as *const libc::iovec, iov.len() as c_int, offset)
     };
@@ -127,7 +131,7 @@ feature! {
 /// [ptrace]: ../ptrace/index.html
 /// [`IoVec`]: struct.IoVec.html
 /// [`RemoteIoVec`]: struct.RemoteIoVec.html
-#[cfg(target_os = "linux")]
+#[cfg(all(target_os = "linux", not(target_env = "uclibc")))]
 pub fn process_vm_writev(
     pid: crate::unistd::Pid,
     local_iov: &[IoVec<&[u8]>],
@@ -162,7 +166,7 @@ pub fn process_vm_writev(
 /// [`ptrace`]: ../ptrace/index.html
 /// [`IoVec`]: struct.IoVec.html
 /// [`RemoteIoVec`]: struct.RemoteIoVec.html
-#[cfg(any(target_os = "linux"))]
+#[cfg(all(target_os = "linux", not(target_env = "uclibc")))]
 pub fn process_vm_readv(
     pid: crate::unistd::Pid,
     local_iov: &[IoVec<&mut [u8]>],
-- 
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