RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 20:47:45 +00:00
Code Issues Activity Actions

Kernel+LibC: Pass 64-bit integers in syscalls by value

Browse source 
Now that support for 32-bit x86 has been removed, we don't have to worry
about the top half of `off_t`/`u64` values being chopped off when we try
to pass them in registers. Therefore, we no longer need the workaround
of pointers to stack-allocated values to syscalls.

Note that this changes the system call ABI, so statically linked
programs will have to be re-linked.
This commit is contained in:
Daniel Bertalan 2023-08-11 10:47:31 +02:00
parent 87f4b0f1c2
commit 286984750e
12 changed files with 22 additions and 37 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Userland/Libraries/LibC/sys/uio.cpp
View file

@ -28,7 +28,7 @@ ssize_t pwritev(int fd, struct iovec const* iov, int iov_count, off_t offset)
{
__pthread_maybe_cancel();
int rc = syscall(SC_pwritev, fd, iov, iov_count, &offset);
int rc = syscall(SC_pwritev, fd, iov, iov_count, offset);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
}