use rustc_middle::mir;
use crate::*;
-use helpers::check_arg_count;
+use shims::posix::dlsym as posix;
+use shims::windows::dlsym as windows;
#[derive(Debug, Copy, Clone)]
+#[allow(non_camel_case_types)]
pub enum Dlsym {
- GetEntropy,
+ Posix(posix::Dlsym),
+ Windows(windows::Dlsym),
}
impl Dlsym {
// Returns an error for unsupported symbols, and None if this symbol
// should become a NULL pointer (pretend it does not exist).
pub fn from_str(name: &[u8], target_os: &str) -> InterpResult<'static, Option<Dlsym>> {
- use self::Dlsym::*;
- let name = String::from_utf8_lossy(name);
+ let name = &*String::from_utf8_lossy(name);
Ok(match target_os {
- "linux" => match &*name {
- "__pthread_get_minstack" => None,
- _ => throw_unsup_format!("unsupported Linux dlsym: {}", name),
- }
- "macos" => match &*name {
- "getentropy" => Some(GetEntropy),
- _ => throw_unsup_format!("unsupported macOS dlsym: {}", name),
- }
- "windows" => match &*name {
- "SetThreadStackGuarantee" => None,
- "AcquireSRWLockExclusive" => None,
- "GetSystemTimePreciseAsFileTime" => None,
- _ => throw_unsup_format!("unsupported Windows dlsym: {}", name),
- }
+ "linux" | "macos" => posix::Dlsym::from_str(name, target_os)?.map(Dlsym::Posix),
+ "windows" => windows::Dlsym::from_str(name)?.map(Dlsym::Windows),
os => bug!("dlsym not implemented for target_os {}", os),
})
}
args: &[OpTy<'tcx, Tag>],
ret: Option<(PlaceTy<'tcx, Tag>, mir::BasicBlock)>,
) -> InterpResult<'tcx> {
- use self::Dlsym::*;
-
let this = self.eval_context_mut();
- let (dest, ret) = ret.expect("we don't support any diverging dlsym");
-
match dlsym {
- GetEntropy => {
- let &[ptr, len] = check_arg_count(args)?;
- let ptr = this.read_scalar(ptr)?.not_undef()?;
- let len = this.read_scalar(len)?.to_machine_usize(this)?;
- this.gen_random(ptr, len)?;
- this.write_null(dest)?;
- }
+ Dlsym::Posix(dlsym) => posix::EvalContextExt::call_dlsym(this, dlsym, args, ret),
+ Dlsym::Windows(dlsym) => windows::EvalContextExt::call_dlsym(this, dlsym, args, ret),
}
-
- this.dump_place(*dest);
- this.go_to_block(ret);
- Ok(())
}
}
--- /dev/null
+use rustc_middle::mir;
+
+use crate::*;
+use shims::posix::linux::dlsym as linux;
+use shims::posix::macos::dlsym as macos;
+
+#[derive(Debug, Copy, Clone)]
+pub enum Dlsym {
+ Linux(linux::Dlsym),
+ MacOs(macos::Dlsym),
+}
+
+impl Dlsym {
+ // Returns an error for unsupported symbols, and None if this symbol
+ // should become a NULL pointer (pretend it does not exist).
+ pub fn from_str(name: &str, target_os: &str) -> InterpResult<'static, Option<Dlsym>> {
+ Ok(match target_os {
+ "linux" => linux::Dlsym::from_str(name)?.map(Dlsym::Linux),
+ "macos" => macos::Dlsym::from_str(name)?.map(Dlsym::MacOs),
+ _ => unreachable!(),
+ })
+ }
+}
+
+impl<'mir, 'tcx: 'mir> EvalContextExt<'mir, 'tcx> for crate::MiriEvalContext<'mir, 'tcx> {}
+pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx> {
+ fn call_dlsym(
+ &mut self,
+ dlsym: Dlsym,
+ args: &[OpTy<'tcx, Tag>],
+ ret: Option<(PlaceTy<'tcx, Tag>, mir::BasicBlock)>,
+ ) -> InterpResult<'tcx> {
+ let this = self.eval_context_mut();
+ match dlsym {
+ Dlsym::Linux(dlsym) => linux::EvalContextExt::call_dlsym(this, dlsym, args, ret),
+ Dlsym::MacOs(dlsym) => macos::EvalContextExt::call_dlsym(this, dlsym, args, ret),
+ }
+ }
+}
--- /dev/null
+use rustc_middle::mir;
+
+use crate::*;
+
+#[derive(Debug, Copy, Clone)]
+pub enum Dlsym {
+}
+
+impl Dlsym {
+ // Returns an error for unsupported symbols, and None if this symbol
+ // should become a NULL pointer (pretend it does not exist).
+ pub fn from_str(name: &str) -> InterpResult<'static, Option<Dlsym>> {
+ Ok(match &*name {
+ "__pthread_get_minstack" => None,
+ _ => throw_unsup_format!("unsupported Linux dlsym: {}", name),
+ })
+ }
+}
+
+impl<'mir, 'tcx: 'mir> EvalContextExt<'mir, 'tcx> for crate::MiriEvalContext<'mir, 'tcx> {}
+pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx> {
+ fn call_dlsym(
+ &mut self,
+ dlsym: Dlsym,
+ _args: &[OpTy<'tcx, Tag>],
+ ret: Option<(PlaceTy<'tcx, Tag>, mir::BasicBlock)>,
+ ) -> InterpResult<'tcx> {
+ let this = self.eval_context_mut();
+ let (_dest, _ret) = ret.expect("we don't support any diverging dlsym");
+ assert!(this.tcx.sess.target.target.target_os == "linux");
+
+ match dlsym {}
+ }
+}
pub mod foreign_items;
+pub mod dlsym;
--- /dev/null
+use rustc_middle::mir;
+
+use crate::*;
+use helpers::check_arg_count;
+
+#[derive(Debug, Copy, Clone)]
+#[allow(non_camel_case_types)]
+pub enum Dlsym {
+ getentropy,
+}
+
+impl Dlsym {
+ // Returns an error for unsupported symbols, and None if this symbol
+ // should become a NULL pointer (pretend it does not exist).
+ pub fn from_str(name: &str) -> InterpResult<'static, Option<Dlsym>> {
+ Ok(match name {
+ "getentropy" => Some(Dlsym::getentropy),
+ _ => throw_unsup_format!("unsupported macOS dlsym: {}", name),
+ })
+ }
+}
+
+impl<'mir, 'tcx: 'mir> EvalContextExt<'mir, 'tcx> for crate::MiriEvalContext<'mir, 'tcx> {}
+pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx> {
+ fn call_dlsym(
+ &mut self,
+ dlsym: Dlsym,
+ args: &[OpTy<'tcx, Tag>],
+ ret: Option<(PlaceTy<'tcx, Tag>, mir::BasicBlock)>,
+ ) -> InterpResult<'tcx> {
+ let this = self.eval_context_mut();
+ let (dest, ret) = ret.expect("we don't support any diverging dlsym");
+ assert!(this.tcx.sess.target.target.target_os == "macos");
+
+ match dlsym {
+ Dlsym::getentropy => {
+ let &[ptr, len] = check_arg_count(args)?;
+ let ptr = this.read_scalar(ptr)?.not_undef()?;
+ let len = this.read_scalar(len)?.to_machine_usize(this)?;
+ this.gen_random(ptr, len)?;
+ this.write_null(dest)?;
+ }
+ }
+
+ this.dump_place(*dest);
+ this.go_to_block(ret);
+ Ok(())
+ }
+}
pub mod foreign_items;
+pub mod dlsym;
pub mod foreign_items;
+pub mod dlsym;
mod fs;
mod sync;
--- /dev/null
+use rustc_middle::mir;
+
+use crate::*;
+use helpers::check_arg_count;
+
+#[derive(Debug, Copy, Clone)]
+pub enum Dlsym {
+ AcquireSRWLockExclusive,
+ AcquireSRWLockShared,
+}
+
+impl Dlsym {
+ // Returns an error for unsupported symbols, and None if this symbol
+ // should become a NULL pointer (pretend it does not exist).
+ pub fn from_str(name: &str) -> InterpResult<'static, Option<Dlsym>> {
+ Ok(match name {
+ "AcquireSRWLockExclusive" => Some(Dlsym::AcquireSRWLockExclusive),
+ "AcquireSRWLockShared" => Some(Dlsym::AcquireSRWLockShared),
+ "SetThreadStackGuarantee" => None,
+ "GetSystemTimePreciseAsFileTime" => None,
+ _ => throw_unsup_format!("unsupported Windows dlsym: {}", name),
+ })
+ }
+}
+
+impl<'mir, 'tcx: 'mir> EvalContextExt<'mir, 'tcx> for crate::MiriEvalContext<'mir, 'tcx> {}
+pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx> {
+ fn call_dlsym(
+ &mut self,
+ dlsym: Dlsym,
+ args: &[OpTy<'tcx, Tag>],
+ ret: Option<(PlaceTy<'tcx, Tag>, mir::BasicBlock)>,
+ ) -> InterpResult<'tcx> {
+ let this = self.eval_context_mut();
+ let (dest, ret) = ret.expect("we don't support any diverging dlsym");
+ assert!(this.tcx.sess.target.target.target_os == "windows");
+
+ match dlsym {
+ Dlsym::AcquireSRWLockExclusive => {
+ let &[ptr] = check_arg_count(args)?;
+ let lock = this.deref_operand(ptr)?; // points to ptr-sized data
+ throw_unsup_format!("AcquireSRWLockExclusive is not actually implemented");
+ }
+ Dlsym::AcquireSRWLockShared => {
+ let &[ptr] = check_arg_count(args)?;
+ let lock = this.deref_operand(ptr)?; // points to ptr-sized data
+ throw_unsup_format!("AcquireSRWLockExclusive is not actually implemented");
+ }
+ }
+
+ this.dump_place(*dest);
+ this.go_to_block(ret);
+ Ok(())
+ }
+}
pub mod foreign_items;
+pub mod dlsym;
+
+mod sync;
fn main() {
test_mutex_stdlib();
- #[cfg(not(target_os = "windows"))] // TODO: implement RwLock on Windows
- {
- test_rwlock_stdlib();
- }
+ test_rwlock_stdlib();
test_spin_loop_hint();
test_thread_yield_now();
}
drop(m);
}
-#[cfg(not(target_os = "windows"))]
fn test_rwlock_stdlib() {
use std::sync::RwLock;
let rw = RwLock::new(0);