diff options
-rwxr-xr-x | src/tools/miri/ci/ci.sh | 8 | ||||
-rw-r--r-- | src/tools/miri/src/shims/unix/foreign_items.rs | 14 | ||||
-rw-r--r-- | src/tools/miri/tests/pass-dep/libc/libc-random.rs | 13 |
3 files changed, 31 insertions, 4 deletions
diff --git a/src/tools/miri/ci/ci.sh b/src/tools/miri/ci/ci.sh index 97f06dd9330..5725d6609cc 100755 --- a/src/tools/miri/ci/ci.sh +++ b/src/tools/miri/ci/ci.sh @@ -150,10 +150,10 @@ case $HOST_TARGET in # Partially supported targets (tier 2) BASIC="empty_main integer heap_alloc libc-mem vec string btreemap" # ensures we have the basics: pre-main code, system allocator UNIX="hello panic/panic panic/unwind concurrency/simple atomic libc-mem libc-misc libc-random env num_cpus" # the things that are very similar across all Unixes, and hence easily supported there - TEST_TARGET=x86_64-unknown-freebsd run_tests_minimal $BASIC $UNIX threadname pthread time fs - TEST_TARGET=i686-unknown-freebsd run_tests_minimal $BASIC $UNIX threadname pthread time fs - TEST_TARGET=x86_64-unknown-illumos run_tests_minimal $BASIC $UNIX thread sync available-parallelism time tls - TEST_TARGET=x86_64-pc-solaris run_tests_minimal $BASIC $UNIX thread sync available-parallelism time tls + TEST_TARGET=x86_64-unknown-freebsd run_tests_minimal $BASIC $UNIX hashmap random threadname pthread time fs + TEST_TARGET=i686-unknown-freebsd run_tests_minimal $BASIC $UNIX hashmap random threadname pthread time fs + TEST_TARGET=x86_64-unknown-illumos run_tests_minimal $BASIC $UNIX hashmap thread sync available-parallelism time tls + TEST_TARGET=x86_64-pc-solaris run_tests_minimal $BASIC $UNIX hashmap thread sync available-parallelism time tls TEST_TARGET=aarch64-linux-android run_tests_minimal $BASIC $UNIX hashmap pthread time --skip threadname TEST_TARGET=wasm32-wasip2 run_tests_minimal $BASIC wasm TEST_TARGET=wasm32-unknown-unknown run_tests_minimal no_std empty_main wasm # this target doesn't really have std diff --git a/src/tools/miri/src/shims/unix/foreign_items.rs b/src/tools/miri/src/shims/unix/foreign_items.rs index c06ce57e610..470f13442f9 100644 --- a/src/tools/miri/src/shims/unix/foreign_items.rs +++ b/src/tools/miri/src/shims/unix/foreign_items.rs @@ -792,6 +792,20 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { this.gen_random(ptr, len)?; this.write_scalar(Scalar::from_target_usize(len, this), dest)?; } + "arc4random_buf" => { + // This function is non-standard but exists with the same signature and + // same behavior (eg never fails) on FreeBSD and Solaris/Illumos. + if !matches!(&*this.tcx.sess.target.os, "freebsd" | "illumos" | "solaris") { + throw_unsup_format!( + "`arc4random_buf` is not supported on {}", + this.tcx.sess.target.os + ); + } + let [ptr, len] = this.check_shim(abi, Abi::C { unwind: false}, link_name, args)?; + let ptr = this.read_pointer(ptr)?; + let len = this.read_target_usize(len)?; + this.gen_random(ptr, len)?; + } "_Unwind_RaiseException" => { // This is not formally part of POSIX, but it is very wide-spread on POSIX systems. // It was originally specified as part of the Itanium C++ ABI: diff --git a/src/tools/miri/tests/pass-dep/libc/libc-random.rs b/src/tools/miri/tests/pass-dep/libc/libc-random.rs index e951603639c..8f4398cbd8f 100644 --- a/src/tools/miri/tests/pass-dep/libc/libc-random.rs +++ b/src/tools/miri/tests/pass-dep/libc/libc-random.rs @@ -6,6 +6,8 @@ fn main() { test_getentropy(); #[cfg(not(target_os = "macos"))] test_getrandom(); + #[cfg(any(target_os = "freebsd", target_os = "illumos", target_os = "solaris"))] + test_arc4random_buf(); } fn test_getentropy() { @@ -61,3 +63,14 @@ fn test_getrandom() { ); } } + +#[cfg(any(target_os = "freebsd", target_os = "illumos", target_os = "solaris"))] +fn test_arc4random_buf() { + // FIXME: Use declaration from libc once <https://github.com/rust-lang/libc/pull/3944> lands. + extern "C" { + fn arc4random_buf(buf: *mut libc::c_void, size: libc::size_t); + } + let mut buf = [0u8; 5]; + unsafe { arc4random_buf(buf.as_mut_ptr() as _, buf.len()) }; + assert!(buf != [0u8; 5]); +} |