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filesystem support for solarish.
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close rust-lang#3890
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@devnexen
devnexen committed Nov 12, 2024
1 parent 1576f64 commit ea9eafa
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Showing 4 changed files with 74 additions and 32 deletions.
8 changes: 4 additions & 4 deletions src/shims/unix/freebsd/foreign_items.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -53,25 +53,25 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
"stat" | "stat@FBSD_1.0" => {
let [path, buf] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_stat(path, buf)?;
let result = this.macos_fbsd_solaris_stat(path, buf)?;
this.write_scalar(result, dest)?;
}
"lstat" | "lstat@FBSD_1.0" => {
let [path, buf] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_lstat(path, buf)?;
let result = this.macos_fbsd_solaris_lstat(path, buf)?;
this.write_scalar(result, dest)?;
}
"fstat" | "fstat@FBSD_1.0" => {
let [fd, buf] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_fstat(fd, buf)?;
let result = this.macos_fbsd_solaris_fstat(fd, buf)?;
this.write_scalar(result, dest)?;
}
"readdir_r" | "readdir_r@FBSD_1.0" => {
let [dirp, entry, result] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_readdir_r(dirp, entry, result)?;
let result = this.macos_fbsd_solaris_readdir_r(dirp, entry, result)?;
this.write_scalar(result, dest)?;
}

Expand Down
64 changes: 40 additions & 24 deletions src/shims/unix/fs.rs
View file
Original file line number Diff line number Diff line change
Expand Up @@ -265,7 +265,7 @@ impl FileDescription for FileHandle {

impl<'tcx> EvalContextExtPrivate<'tcx> for crate::MiriInterpCx<'tcx> {}
trait EvalContextExtPrivate<'tcx>: crate::MiriInterpCxExt<'tcx> {
fn macos_stat_write_buf(
fn macos_fbsd_solaris_write_buf(
&mut self,
metadata: FileMetadata,
buf_op: &OpTy<'tcx>,
Expand All @@ -279,7 +279,6 @@ trait EvalContextExtPrivate<'tcx>: crate::MiriInterpCxExt<'tcx> {
let (modified_sec, modified_nsec) = metadata.modified.unwrap_or((0, 0));

let buf = this.deref_pointer_as(buf_op, this.libc_ty_layout("stat"))?;

this.write_int_fields_named(
&[
("st_dev", 0),
Expand All @@ -290,22 +289,30 @@ trait EvalContextExtPrivate<'tcx>: crate::MiriInterpCxExt<'tcx> {
("st_gid", 0),
("st_rdev", 0),
("st_atime", access_sec.into()),
("st_atime_nsec", access_nsec.into()),
("st_mtime", modified_sec.into()),
("st_mtime_nsec", modified_nsec.into()),
("st_ctime", 0),
("st_ctime_nsec", 0),
("st_birthtime", created_sec.into()),
("st_birthtime_nsec", created_nsec.into()),
("st_size", metadata.size.into()),
("st_blocks", 0),
("st_blksize", 0),
("st_flags", 0),
("st_gen", 0),
],
&buf,
)?;

if matches!(&*this.tcx.sess.target.os, "macos" | "freebsd") {
this.write_int_fields_named(
&[
("st_atime_nsec", access_nsec.into()),
("st_mtime_nsec", modified_nsec.into()),
("st_ctime_nsec", 0),
("st_birthtime", created_sec.into()),
("st_birthtime_nsec", created_nsec.into()),
("st_flags", 0),
("st_gen", 0),
],
&buf,
)?;
}

interp_ok(0)
}

Expand Down Expand Up @@ -648,15 +655,15 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
interp_ok(Scalar::from_i32(this.try_unwrap_io_result(result)?))
}

fn macos_fbsd_stat(
fn macos_fbsd_solaris_stat(
&mut self,
path_op: &OpTy<'tcx>,
buf_op: &OpTy<'tcx>,
) -> InterpResult<'tcx, Scalar> {
let this = self.eval_context_mut();

if !matches!(&*this.tcx.sess.target.os, "macos" | "freebsd") {
panic!("`macos_fbsd_stat` should not be called on {}", this.tcx.sess.target.os);
if !matches!(&*this.tcx.sess.target.os, "macos" | "freebsd" | "solaris" | "illumos") {
panic!("`macos_fbsd_solaris_stat` should not be called on {}", this.tcx.sess.target.os);
}

let path_scalar = this.read_pointer(path_op)?;
Expand All @@ -674,19 +681,22 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
Err(err) => return this.set_last_error_and_return_i32(err),
};

interp_ok(Scalar::from_i32(this.macos_stat_write_buf(metadata, buf_op)?))
interp_ok(Scalar::from_i32(this.macos_fbsd_solaris_write_buf(metadata, buf_op)?))
}

// `lstat` is used to get symlink metadata.
fn macos_fbsd_lstat(
fn macos_fbsd_solaris_lstat(
&mut self,
path_op: &OpTy<'tcx>,
buf_op: &OpTy<'tcx>,
) -> InterpResult<'tcx, Scalar> {
let this = self.eval_context_mut();

if !matches!(&*this.tcx.sess.target.os, "macos" | "freebsd") {
panic!("`macos_fbsd_lstat` should not be called on {}", this.tcx.sess.target.os);
if !matches!(&*this.tcx.sess.target.os, "macos" | "freebsd" | "solaris" | "illumos") {
panic!(
"`macos_fbsd_solaris_lstat` should not be called on {}",
this.tcx.sess.target.os
);
}

let path_scalar = this.read_pointer(path_op)?;
Expand All @@ -703,18 +713,21 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
Err(err) => return this.set_last_error_and_return_i32(err),
};

interp_ok(Scalar::from_i32(this.macos_stat_write_buf(metadata, buf_op)?))
interp_ok(Scalar::from_i32(this.macos_fbsd_solaris_write_buf(metadata, buf_op)?))
}

fn macos_fbsd_fstat(
fn macos_fbsd_solaris_fstat(
&mut self,
fd_op: &OpTy<'tcx>,
buf_op: &OpTy<'tcx>,
) -> InterpResult<'tcx, Scalar> {
let this = self.eval_context_mut();

if !matches!(&*this.tcx.sess.target.os, "macos" | "freebsd") {
panic!("`macos_fbsd_fstat` should not be called on {}", this.tcx.sess.target.os);
if !matches!(&*this.tcx.sess.target.os, "macos" | "freebsd" | "solaris" | "illumos") {
panic!(
"`macos_fbsd_solaris_fstat` should not be called on {}",
this.tcx.sess.target.os
);
}

let fd = this.read_scalar(fd_op)?.to_i32()?;
Expand All @@ -730,7 +743,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
Ok(metadata) => metadata,
Err(err) => return this.set_last_error_and_return_i32(err),
};
interp_ok(Scalar::from_i32(this.macos_stat_write_buf(metadata, buf_op)?))
interp_ok(Scalar::from_i32(this.macos_fbsd_solaris_write_buf(metadata, buf_op)?))
}

fn linux_statx(
Expand Down Expand Up @@ -1112,16 +1125,19 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
interp_ok(Scalar::from_maybe_pointer(entry.unwrap_or_else(Pointer::null), this))
}

fn macos_fbsd_readdir_r(
fn macos_fbsd_solaris_readdir_r(
&mut self,
dirp_op: &OpTy<'tcx>,
entry_op: &OpTy<'tcx>,
result_op: &OpTy<'tcx>,
) -> InterpResult<'tcx, Scalar> {
let this = self.eval_context_mut();

if !matches!(&*this.tcx.sess.target.os, "macos" | "freebsd") {
panic!("`macos_fbsd_readdir_r` should not be called on {}", this.tcx.sess.target.os);
if !matches!(&*this.tcx.sess.target.os, "macos" | "freebsd" | "solaris" | "illumos") {
panic!(
"`macos_fbsd_solaris_readdir_r` should not be called on {}",
this.tcx.sess.target.os
);
}

let dirp = this.read_target_usize(dirp_op)?;
Expand Down
8 changes: 4 additions & 4 deletions src/shims/unix/macos/foreign_items.rs
View file
Original file line number Diff line number Diff line change
Expand Up @@ -40,19 +40,19 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
"stat" | "stat64" | "stat$INODE64" => {
let [path, buf] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_stat(path, buf)?;
let result = this.macos_fbsd_solaris_stat(path, buf)?;
this.write_scalar(result, dest)?;
}
"lstat" | "lstat64" | "lstat$INODE64" => {
let [path, buf] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_lstat(path, buf)?;
let result = this.macos_fbsd_solaris_lstat(path, buf)?;
this.write_scalar(result, dest)?;
}
"fstat" | "fstat64" | "fstat$INODE64" => {
let [fd, buf] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_fstat(fd, buf)?;
let result = this.macos_fbsd_solaris_fstat(fd, buf)?;
this.write_scalar(result, dest)?;
}
"opendir$INODE64" => {
Expand All @@ -64,7 +64,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
"readdir_r" | "readdir_r$INODE64" => {
let [dirp, entry, result] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_readdir_r(dirp, entry, result)?;
let result = this.macos_fbsd_solaris_readdir_r(dirp, entry, result)?;
this.write_scalar(result, dest)?;
}
"realpath$DARWIN_EXTSN" => {
Expand Down
26 changes: 26 additions & 0 deletions src/shims/unix/solarish/foreign_items.rs
View file
Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,32 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
this.write_scalar(res, dest)?;
}

// File related shims
"stat" | "stat64" => {
let [path, buf] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_solaris_stat(path, buf)?;
this.write_scalar(result, dest)?;
}
"lstat" | "lstat64" => {
let [path, buf] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_solaris_lstat(path, buf)?;
this.write_scalar(result, dest)?;
}
"fstat" | "fstat64" => {
let [fd, buf] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_solaris_fstat(fd, buf)?;
this.write_scalar(result, dest)?;
}
"readdir_r" => {
let [dirp, entry, result] =
this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
let result = this.macos_fbsd_solaris_readdir_r(dirp, entry, result)?;
this.write_scalar(result, dest)?;
}

// Miscellaneous
"___errno" => {
let [] = this.check_shim(abi, ExternAbi::C { unwind: false }, link_name, args)?;
Expand Down

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