rust: Upgrade 1.75.0->1.76.0

* Drop "--doc" option for rust oe-selftest since
it is not supported on bootstrap builds for
cross-targets.

* Drop the following backported patches which are merged
with rust v1.76 upgrade.

- custom-target-cfg.patch
- rustc-bootstrap.patch
- rv32-missing-syscalls.patch
- target-build-value.patch

https://blog.rust-lang.org/2024/02/08/Rust-1.76.0.html
* Drop 'rust-rustdoc' and 'rust-dbg' from 'exclude_packages' list
to check for rust reproducibility.

(From OE-Core rev: 71d17ed3c7be029fc68e9dd3f5d6c4aa72ef861a)

Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 0 insertions, 90 deletions

diff --git a/meta/recipes-devtools/rust/files/custom-target-cfg.patch b/meta/recipes-devtools/rust/files/custom-target-cfg.patch
deleted file mode 100644
index 15a7f252cc..0000000000
--- a/meta/recipes-devtools/rust/files/custom-target-cfg.patch
+++ /dev/null
@@ -1,90 +0,0 @@
-Detect and fetch custom target configurations when rustc is
-bootstrapped in rust oe-selftest.
-
-Upstream-Status: Backport [https://github.com/rust-lang/rust/pull/119619/commits/26c71cbcf1a9bce6ceb962d753c467d098f63cf6]
-
-Signed-off-by: onur-ozkan <work@onurozkan.dev>
-Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
----
-diff --git a/src/tools/compiletest/src/common.rs b/src/tools/compiletest/src/common.rs
-index e85f6319936..c45c0b3c652 100644
---- a/src/tools/compiletest/src/common.rs
-+++ b/src/tools/compiletest/src/common.rs
-@@ -479,6 +479,7 @@ fn new(config: &Config) -> TargetCfgs {
-         let mut targets: HashMap<String, TargetCfg> = serde_json::from_str(&rustc_output(
-             config,
-             &["--print=all-target-specs-json", "-Zunstable-options"],
-+            Default::default(),
-         ))
-         .unwrap();
-
-@@ -491,16 +492,33 @@ fn new(config: &Config) -> TargetCfgs {
-         let mut all_families = HashSet::new();
-         let mut all_pointer_widths = HashSet::new();
-
--        // Handle custom target specs, which are not included in `--print=all-target-specs-json`.
--        if config.target.ends_with(".json") {
--            targets.insert(
--                config.target.clone(),
--                serde_json::from_str(&rustc_output(
--                    config,
--                    &["--print=target-spec-json", "-Zunstable-options", "--target", &config.target],
--                ))
--                .unwrap(),
--            );
-+        // If current target is not included in the `--print=all-target-specs-json` output,
-+        // we check whether it is a custom target from the user or a synthetic target from bootstrap.
-+        if !targets.contains_key(&config.target) {
-+            let mut envs: HashMap<String, String> = HashMap::new();
-+
-+            if let Ok(t) = std::env::var("RUST_TARGET_PATH") {
-+                envs.insert("RUST_TARGET_PATH".into(), t);
-+            }
-+
-+            // This returns false only when the target is neither a synthetic target
-+            // nor a custom target from the user, indicating it is most likely invalid.
-+            if config.target.ends_with(".json") || !envs.is_empty() {
-+                targets.insert(
-+                    config.target.clone(),
-+                    serde_json::from_str(&rustc_output(
-+                        config,
-+                        &[
-+                            "--print=target-spec-json",
-+                            "-Zunstable-options",
-+                            "--target",
-+                            &config.target,
-+                        ],
-+                        envs,
-+                    ))
-+                    .unwrap(),
-+                );
-+            }
-         }
-
-         for (target, cfg) in targets.iter() {
-@@ -545,7 +563,9 @@ fn get_current_target_config(
-         // code below extracts them from `--print=cfg`: make sure to only override fields that can
-         // actually be changed with `-C` flags.
-         for config in
--            rustc_output(config, &["--print=cfg", "--target", &config.target]).trim().lines()
-+            rustc_output(config, &["--print=cfg", "--target", &config.target], Default::default())
-+                .trim()
-+                .lines()
-         {
-             let (name, value) = config
-                 .split_once("=\"")
-@@ -624,11 +644,12 @@ pub enum Endian {
-     Big,
- }
-
--fn rustc_output(config: &Config, args: &[&str]) -> String {
-+fn rustc_output(config: &Config, args: &[&str], envs: HashMap<String, String>) -> String {
-     let mut command = Command::new(&config.rustc_path);
-     add_dylib_path(&mut command, iter::once(&config.compile_lib_path));
-     command.args(&config.target_rustcflags).args(args);
-     command.env("RUSTC_BOOTSTRAP", "1");
-+    command.envs(envs);
-
-     let output = match command.output() {
-         Ok(output) => output,
-