add nto80 x86-64 and aarch64 target

Signed-off-by: Florian Bartels <Florian.Bartels@elektrobit.com>

compiler/rustc_target/src/spec/mod.rs

@@ -1964,8 +1964,10 @@ supported_targets! {
     ("aarch64-unknown-nto-qnx700", aarch64_unknown_nto_qnx700),
     ("aarch64-unknown-nto-qnx710", aarch64_unknown_nto_qnx710),
     ("aarch64-unknown-nto-qnx710_iosock", aarch64_unknown_nto_qnx710_iosock),
+    ("aarch64-unknown-nto-qnx800", aarch64_unknown_nto_qnx800),
     ("x86_64-pc-nto-qnx710", x86_64_pc_nto_qnx710),
     ("x86_64-pc-nto-qnx710_iosock", x86_64_pc_nto_qnx710_iosock),
+    ("x86_64-pc-nto-qnx800", x86_64_pc_nto_qnx800),
     ("i586-pc-nto-qnx700", i586_pc_nto_qnx700),
 
     ("aarch64-unknown-linux-ohos", aarch64_unknown_linux_ohos),

compiler/rustc_target/src/spec/targets/aarch64_unknown_nto_qnx800.rs

@@ -0,0 +1,11 @@
+use crate::spec::Target;
+use crate::spec::base::nto_qnx;
+
+pub(crate) fn target() -> Target {
+    let mut target = nto_qnx::aarch64();
+    target.metadata.description = Some("ARM64 QNX Neutrino 8.0 RTOS".into());
+    target.options.pre_link_args =
+        nto_qnx::pre_link_args(nto_qnx::ApiVariant::Default, nto_qnx::Arch::Aarch64);
+    target.options.env = "nto80".into();
+    target
+}

compiler/rustc_target/src/spec/targets/x86_64_pc_nto_qnx800.rs

@@ -0,0 +1,11 @@
+use crate::spec::Target;
+use crate::spec::base::nto_qnx;
+
+pub(crate) fn target() -> Target {
+    let mut target = nto_qnx::x86_64();
+    target.metadata.description = Some("x86 64-bit QNX Neutrino 8.0 RTOS".into());
+    target.options.pre_link_args =
+        nto_qnx::pre_link_args(nto_qnx::ApiVariant::Default, nto_qnx::Arch::X86_64);
+    target.options.env = "nto80".into();
+    target
+}

library/std/Cargo.toml

@@ -139,8 +139,8 @@ test = true
 level = "warn"
 check-cfg = [
     'cfg(bootstrap)',
-    'cfg(target_arch, values("xtensa", "aarch64-unknown-nto-qnx710_iosock", "x86_64-pc-nto-qnx710_iosock"))',
-    'cfg(target_env, values("nto71_iosock"))',
+    'cfg(target_arch, values("xtensa", "aarch64-unknown-nto-qnx710_iosock", "x86_64-pc-nto-qnx710_iosock", "x86_64-pc-nto-qnx800","aarch64-unknown-nto-qnx800"))',
+    'cfg(target_env, values("nto71_iosock", "nto80"))',
     # std use #[path] imports to portable-simd `std_float` crate
     # and to the `backtrace` crate which messes-up with Cargo list
     # of declared features, we therefor expect any feature cfg

library/std/src/sys/pal/unix/process/process_unix.rs

@@ -19,8 +19,7 @@ use crate::sys::process::process_common::*;
 use crate::{fmt, mem, sys};
 
 cfg_if::cfg_if! {
-    // This workaround is only needed for QNX 7.0 and 7.1. The bug should have been fixed in 8.0
-    if #[cfg(any(target_env = "nto70", target_env = "nto71", target_env = "nto71_iosock"))] {
+    if #[cfg(target_os = "nto")] {
         use crate::thread;
         use libc::{c_char, posix_spawn_file_actions_t, posix_spawnattr_t};
         use crate::time::Duration;
@@ -187,13 +186,7 @@ impl Command {
 
     // Attempts to fork the process. If successful, returns Ok((0, -1))
     // in the child, and Ok((child_pid, -1)) in the parent.
-    #[cfg(not(any(
-        target_os = "watchos",
-        target_os = "tvos",
-        target_env = "nto70",
-        target_env = "nto71",
-        target_env = "nto71_iosock",
-    )))]
+    #[cfg(not(any(target_os = "watchos", target_os = "tvos", target_os = "nto")))]
     unsafe fn do_fork(&mut self) -> Result<pid_t, io::Error> {
         cvt(libc::fork())
     }
@@ -202,8 +195,7 @@ impl Command {
     // or closed a file descriptor while the fork() was occurring".
     // Documentation says "... or try calling fork() again". This is what we do here.
     // See also https://www.qnx.com/developers/docs/7.1/#com.qnx.doc.neutrino.lib_ref/topic/f/fork.html
-    // This workaround is only needed for QNX 7.0 and 7.1. The bug should have been fixed in 8.0
-    #[cfg(any(target_env = "nto70", target_env = "nto71", target_env = "nto71_iosock"))]
+    #[cfg(target_os = "nto")]
     unsafe fn do_fork(&mut self) -> Result<pid_t, io::Error> {
         use crate::sys::os::errno;
 

src/bootstrap/src/core/sanity.rs

@@ -36,6 +36,8 @@ const STAGE0_MISSING_TARGETS: &[&str] = &[
     // just a dummy comment so the list doesn't get onelined
     "aarch64-unknown-nto-qnx710_iosock",
     "x86_64-pc-nto-qnx710_iosock",
+    "x86_64-pc-nto-qnx800",
+    "aarch64-unknown-nto-qnx800",
 ];
 
 /// Minimum version threshold for libstdc++ required when using prebuilt LLVM

src/doc/rustc/src/platform-support/nto-qnx.md

@@ -115,6 +115,7 @@ For conditional compilation, following QNX Neutrino specific attributes are defi
 - `target_env` = `"nto71"` (for QNX Neutrino 7.1 with "classic" network stack "io_pkt")
 - `target_env` = `"nto71_iosock"` (for QNX Neutrino 7.1 with network stack "io_sock")
 - `target_env` = `"nto70"` (for QNX Neutrino 7.0)
+- `target_env` = `"nto80"` (for QNX Neutrino 8.0)
 
 ## Building the target
 

tests/assembly/targets/targets-elf.rs

@@ -60,6 +60,9 @@
 //@ revisions: aarch64_unknown_nto_qnx710_iosock
 //@ [aarch64_unknown_nto_qnx710_iosock] compile-flags: --target aarch64-unknown-nto-qnx710_iosock
 //@ [aarch64_unknown_nto_qnx710_iosock] needs-llvm-components: aarch64
+//@ revisions: aarch64_unknown_nto_qnx800
+//@ [aarch64_unknown_nto_qnx800] compile-flags: --target aarch64-unknown-nto-qnx800
+//@ [aarch64_unknown_nto_qnx800] needs-llvm-components: aarch64
 //@ revisions: aarch64_unknown_openbsd
 //@ [aarch64_unknown_openbsd] compile-flags: --target aarch64-unknown-openbsd
 //@ [aarch64_unknown_openbsd] needs-llvm-components: aarch64
@@ -570,6 +573,9 @@
 //@ revisions: x86_64_pc_nto_qnx710_iosock
 //@ [x86_64_pc_nto_qnx710_iosock] compile-flags: --target x86_64-pc-nto-qnx710_iosock
 //@ [x86_64_pc_nto_qnx710_iosock] needs-llvm-components: x86
+//@ revisions: x86_64_pc_nto_qnx800
+//@ [x86_64_pc_nto_qnx800] compile-flags: --target x86_64-pc-nto-qnx800
+//@ [x86_64_pc_nto_qnx800] needs-llvm-components: x86
 //@ revisions: x86_64_pc_solaris
 //@ [x86_64_pc_solaris] compile-flags: --target x86_64-pc-solaris
 //@ [x86_64_pc_solaris] needs-llvm-components: x86

tests/ui/check-cfg/well-known-values.stderr

@@ -156,7 +156,7 @@ warning: unexpected `cfg` condition value: `_UNEXPECTED_VALUE`
 LL |     target_env = "_UNEXPECTED_VALUE",
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
-   = note: expected values for `target_env` are: ``, `gnu`, `msvc`, `musl`, `newlib`, `nto70`, `nto71`, `nto71_iosock`, `ohos`, `p1`, `p2`, `relibc`, `sgx`, and `uclibc`
+   = note: expected values for `target_env` are: ``, `gnu`, `msvc`, `musl`, `newlib`, `nto70`, `nto71`, `nto71_iosock`, `nto80`, `ohos`, `p1`, `p2`, `relibc`, `sgx`, and `uclibc`
    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg.html> for more information about checking conditional configuration
 
 warning: unexpected `cfg` condition value: `_UNEXPECTED_VALUE`