Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

1 files changed, 449 insertions, 0 deletions

diff --git a/vendor/portable-atomic/src/imp/mod.rs b/vendor/portable-atomic/src/imp/mod.rs
new file mode 100644
index 0000000..cea71eb
--- /dev/null
+++ b/vendor/portable-atomic/src/imp/mod.rs
@@ -0,0 +1,449 @@
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
+// -----------------------------------------------------------------------------
+// Lock-free implementations
+
+#[cfg(not(any(
+    all(
+        portable_atomic_no_atomic_load_store,
+        not(all(target_arch = "bpf", not(feature = "critical-section"))),
+    ),
+    portable_atomic_unsafe_assume_single_core,
+    target_arch = "avr",
+    target_arch = "msp430",
+)))]
+#[cfg_attr(
+    portable_atomic_no_cfg_target_has_atomic,
+    cfg(not(all(
+        any(target_arch = "riscv32", target_arch = "riscv64", feature = "critical-section"),
+        portable_atomic_no_atomic_cas,
+    )))
+)]
+#[cfg_attr(
+    not(portable_atomic_no_cfg_target_has_atomic),
+    cfg(not(all(
+        any(target_arch = "riscv32", target_arch = "riscv64", feature = "critical-section"),
+        not(target_has_atomic = "ptr"),
+    )))
+)]
+mod core_atomic;
+
+// aarch64 128-bit atomics
+#[cfg(all(
+    target_arch = "aarch64",
+    any(not(portable_atomic_no_asm), portable_atomic_unstable_asm),
+))]
+// Use intrinsics.rs on Miri and Sanitizer that do not support inline assembly.
+#[cfg_attr(
+    all(any(miri, portable_atomic_sanitize_thread), portable_atomic_new_atomic_intrinsics),
+    path = "atomic128/intrinsics.rs"
+)]
+#[cfg_attr(
+    not(all(any(miri, portable_atomic_sanitize_thread), portable_atomic_new_atomic_intrinsics)),
+    path = "atomic128/aarch64.rs"
+)]
+mod aarch64;
+
+// x86_64 128-bit atomics
+#[cfg(all(
+    target_arch = "x86_64",
+    any(not(portable_atomic_no_asm), portable_atomic_unstable_asm),
+    any(
+        target_feature = "cmpxchg16b",
+        portable_atomic_target_feature = "cmpxchg16b",
+        all(
+            feature = "fallback",
+            not(portable_atomic_no_cmpxchg16b_target_feature),
+            not(portable_atomic_no_outline_atomics),
+            not(any(target_env = "sgx", miri)),
+        ),
+    ),
+))]
+// Use intrinsics.rs on Miri and Sanitizer that do not support inline assembly.
+#[cfg_attr(any(miri, portable_atomic_sanitize_thread), path = "atomic128/intrinsics.rs")]
+#[cfg_attr(not(any(miri, portable_atomic_sanitize_thread)), path = "atomic128/x86_64.rs")]
+mod x86_64;
+
+// powerpc64 128-bit atomics
+#[cfg(all(
+    target_arch = "powerpc64",
+    portable_atomic_unstable_asm_experimental_arch,
+    any(
+        target_feature = "quadword-atomics",
+        portable_atomic_target_feature = "quadword-atomics",
+        all(
+            feature = "fallback",
+            not(portable_atomic_no_outline_atomics),
+            any(test, portable_atomic_outline_atomics), // TODO(powerpc64): currently disabled by default
+            any(
+                all(
+                    target_os = "linux",
+                    any(
+                        target_env = "gnu",
+                        all(
+                            any(target_env = "musl", target_env = "ohos"),
+                            not(target_feature = "crt-static"),
+                        ),
+                        portable_atomic_outline_atomics,
+                    ),
+                ),
+                target_os = "android",
+                target_os = "freebsd",
+            ),
+            not(any(miri, portable_atomic_sanitize_thread)),
+        ),
+    ),
+))]
+// Use intrinsics.rs on Miri and Sanitizer that do not support inline assembly.
+#[cfg_attr(
+    all(any(miri, portable_atomic_sanitize_thread), portable_atomic_llvm_15),
+    path = "atomic128/intrinsics.rs"
+)]
+#[cfg_attr(
+    not(all(any(miri, portable_atomic_sanitize_thread), portable_atomic_llvm_15)),
+    path = "atomic128/powerpc64.rs"
+)]
+mod powerpc64;
+
+// s390x 128-bit atomics
+#[cfg(all(target_arch = "s390x", portable_atomic_unstable_asm_experimental_arch))]
+// Use intrinsics.rs on Miri and Sanitizer that do not support inline assembly.
+#[cfg_attr(any(miri, portable_atomic_sanitize_thread), path = "atomic128/intrinsics.rs")]
+#[cfg_attr(not(any(miri, portable_atomic_sanitize_thread)), path = "atomic128/s390x.rs")]
+mod s390x;
+
+// pre-v6 ARM Linux 64-bit atomics
+#[cfg(feature = "fallback")]
+// Miri and Sanitizer do not support inline assembly.
+#[cfg(all(
+    target_arch = "arm",
+    not(any(miri, portable_atomic_sanitize_thread)),
+    not(portable_atomic_no_asm),
+    any(target_os = "linux", target_os = "android"),
+    not(any(target_feature = "v6", portable_atomic_target_feature = "v6")),
+    not(portable_atomic_no_outline_atomics),
+))]
+#[cfg_attr(portable_atomic_no_cfg_target_has_atomic, cfg(portable_atomic_no_atomic_64))]
+#[cfg_attr(not(portable_atomic_no_cfg_target_has_atomic), cfg(not(target_has_atomic = "64")))]
+mod arm_linux;
+
+// MSP430 atomics
+#[cfg(target_arch = "msp430")]
+pub(crate) mod msp430;
+
+// atomic load/store for RISC-V without A-extension
+#[cfg(any(test, not(feature = "critical-section")))]
+#[cfg_attr(portable_atomic_no_cfg_target_has_atomic, cfg(any(test, portable_atomic_no_atomic_cas)))]
+#[cfg_attr(
+    not(portable_atomic_no_cfg_target_has_atomic),
+    cfg(any(test, not(target_has_atomic = "ptr")))
+)]
+#[cfg(any(target_arch = "riscv32", target_arch = "riscv64"))]
+mod riscv;
+
+// x86-specific optimizations
+// Miri and Sanitizer do not support inline assembly.
+#[cfg(all(
+    any(target_arch = "x86", target_arch = "x86_64"),
+    not(any(miri, portable_atomic_sanitize_thread)),
+    not(portable_atomic_no_asm),
+))]
+mod x86;
+
+// -----------------------------------------------------------------------------
+// Lock-based fallback implementations
+
+#[cfg(feature = "fallback")]
+#[cfg_attr(portable_atomic_no_cfg_target_has_atomic, cfg(not(portable_atomic_no_atomic_cas)))]
+#[cfg_attr(not(portable_atomic_no_cfg_target_has_atomic), cfg(target_has_atomic = "ptr"))]
+#[cfg(any(
+    test,
+    not(any(
+        all(
+            target_arch = "aarch64",
+            any(not(portable_atomic_no_asm), portable_atomic_unstable_asm),
+        ),
+        all(
+            target_arch = "x86_64",
+            any(not(portable_atomic_no_asm), portable_atomic_unstable_asm),
+            any(target_feature = "cmpxchg16b", portable_atomic_target_feature = "cmpxchg16b"),
+        ),
+        all(
+            target_arch = "powerpc64",
+            portable_atomic_unstable_asm_experimental_arch,
+            any(
+                target_feature = "quadword-atomics",
+                portable_atomic_target_feature = "quadword-atomics",
+            ),
+        ),
+        all(target_arch = "s390x", portable_atomic_unstable_asm_experimental_arch),
+    ))
+))]
+mod fallback;
+
+// -----------------------------------------------------------------------------
+// Critical section based fallback implementations
+
+// On AVR, we always use critical section based fallback implementation.
+// AVR can be safely assumed to be single-core, so this is sound.
+// https://github.com/llvm/llvm-project/blob/llvmorg-17.0.0-rc2/llvm/lib/Target/AVR/AVRExpandPseudoInsts.cpp#L1074
+// MSP430 as well.
+#[cfg(any(
+    all(test, target_os = "none"),
+    portable_atomic_unsafe_assume_single_core,
+    feature = "critical-section",
+    target_arch = "avr",
+    target_arch = "msp430",
+))]
+#[cfg_attr(portable_atomic_no_cfg_target_has_atomic, cfg(any(test, portable_atomic_no_atomic_cas)))]
+#[cfg_attr(
+    not(portable_atomic_no_cfg_target_has_atomic),
+    cfg(any(test, not(target_has_atomic = "ptr")))
+)]
+#[cfg(any(
+    target_arch = "arm",
+    target_arch = "avr",
+    target_arch = "msp430",
+    target_arch = "riscv32",
+    target_arch = "riscv64",
+    target_arch = "xtensa",
+    feature = "critical-section",
+))]
+mod interrupt;
+
+// -----------------------------------------------------------------------------
+// Atomic float implementations
+
+#[cfg(feature = "float")]
+pub(crate) mod float;
+
+// -----------------------------------------------------------------------------
+
+#[cfg(not(any(
+    portable_atomic_no_atomic_load_store,
+    portable_atomic_unsafe_assume_single_core,
+    target_arch = "avr",
+    target_arch = "msp430",
+)))]
+#[cfg_attr(
+    portable_atomic_no_cfg_target_has_atomic,
+    cfg(not(all(
+        any(target_arch = "riscv32", target_arch = "riscv64", feature = "critical-section"),
+        portable_atomic_no_atomic_cas,
+    )))
+)]
+#[cfg_attr(
+    not(portable_atomic_no_cfg_target_has_atomic),
+    cfg(not(all(
+        any(target_arch = "riscv32", target_arch = "riscv64", feature = "critical-section"),
+        not(target_has_atomic = "ptr"),
+    )))
+)]
+items! {
+    pub(crate) use self::core_atomic::{
+        AtomicI16, AtomicI32, AtomicI8, AtomicIsize, AtomicPtr, AtomicU16, AtomicU32, AtomicU8,
+        AtomicUsize,
+    };
+    #[cfg_attr(
+        portable_atomic_no_cfg_target_has_atomic,
+        cfg(any(
+            not(portable_atomic_no_atomic_64),
+            not(any(target_pointer_width = "16", target_pointer_width = "32")),
+        ))
+    )]
+    #[cfg_attr(
+        not(portable_atomic_no_cfg_target_has_atomic),
+        cfg(any(
+            target_has_atomic = "64",
+            not(any(target_pointer_width = "16", target_pointer_width = "32")),
+        ))
+    )]
+    pub(crate) use self::core_atomic::{AtomicI64, AtomicU64};
+}
+// bpf
+#[cfg(all(
+    target_arch = "bpf",
+    portable_atomic_no_atomic_load_store,
+    not(feature = "critical-section"),
+))]
+pub(crate) use self::core_atomic::{AtomicI64, AtomicIsize, AtomicPtr, AtomicU64, AtomicUsize};
+
+// RISC-V without A-extension & !(assume single core | critical section)
+#[cfg(not(any(portable_atomic_unsafe_assume_single_core, feature = "critical-section")))]
+#[cfg_attr(portable_atomic_no_cfg_target_has_atomic, cfg(portable_atomic_no_atomic_cas))]
+#[cfg_attr(not(portable_atomic_no_cfg_target_has_atomic), cfg(not(target_has_atomic = "ptr")))]
+#[cfg(any(target_arch = "riscv32", target_arch = "riscv64"))]
+items! {
+    pub(crate) use self::riscv::{
+        AtomicI16, AtomicI32, AtomicI8, AtomicIsize, AtomicPtr, AtomicU16, AtomicU32, AtomicU8,
+        AtomicUsize,
+    };
+    #[cfg(target_arch = "riscv64")]
+    pub(crate) use self::riscv::{AtomicI64, AtomicU64};
+}
+
+// no core atomic CAS & (assume single core | critical section) => critical section based fallback
+#[cfg(any(
+    portable_atomic_unsafe_assume_single_core,
+    feature = "critical-section",
+    target_arch = "avr",
+    target_arch = "msp430",
+))]
+#[cfg_attr(portable_atomic_no_cfg_target_has_atomic, cfg(portable_atomic_no_atomic_cas))]
+#[cfg_attr(not(portable_atomic_no_cfg_target_has_atomic), cfg(not(target_has_atomic = "ptr")))]
+items! {
+    pub(crate) use self::interrupt::{
+        AtomicI16, AtomicI8, AtomicIsize, AtomicPtr, AtomicU16, AtomicU8, AtomicUsize,
+    };
+    #[cfg(any(not(target_pointer_width = "16"), feature = "fallback"))]
+    pub(crate) use self::interrupt::{AtomicI32, AtomicU32};
+    #[cfg(any(
+        not(any(target_pointer_width = "16", target_pointer_width = "32")),
+        feature = "fallback",
+    ))]
+    pub(crate) use self::interrupt::{AtomicI64, AtomicU64};
+    #[cfg(feature = "fallback")]
+    pub(crate) use self::interrupt::{AtomicI128, AtomicU128};
+}
+
+// no core (64-bit | 128-bit) atomic & has CAS => use lock-base fallback
+#[cfg(feature = "fallback")]
+#[cfg_attr(portable_atomic_no_cfg_target_has_atomic, cfg(not(portable_atomic_no_atomic_cas)))]
+#[cfg_attr(not(portable_atomic_no_cfg_target_has_atomic), cfg(target_has_atomic = "ptr"))]
+items! {
+    #[cfg(not(all(
+        target_arch = "arm",
+        not(any(miri, portable_atomic_sanitize_thread)),
+        not(portable_atomic_no_asm),
+        any(target_os = "linux", target_os = "android"),
+        not(any(target_feature = "v6", portable_atomic_target_feature = "v6")),
+        not(portable_atomic_no_outline_atomics),
+    )))]
+    #[cfg_attr(portable_atomic_no_cfg_target_has_atomic, cfg(portable_atomic_no_atomic_64))]
+    #[cfg_attr(not(portable_atomic_no_cfg_target_has_atomic), cfg(not(target_has_atomic = "64")))]
+    pub(crate) use self::fallback::{AtomicI64, AtomicU64};
+    #[cfg(not(any(
+        all(
+            target_arch = "aarch64",
+            any(not(portable_atomic_no_asm), portable_atomic_unstable_asm),
+        ),
+        all(
+            target_arch = "x86_64",
+            any(not(portable_atomic_no_asm), portable_atomic_unstable_asm),
+            any(
+                target_feature = "cmpxchg16b",
+                portable_atomic_target_feature = "cmpxchg16b",
+                all(
+                    feature = "fallback",
+                    not(portable_atomic_no_cmpxchg16b_target_feature),
+                    not(portable_atomic_no_outline_atomics),
+                    not(any(target_env = "sgx", miri)),
+                ),
+            ),
+        ),
+        all(
+            target_arch = "powerpc64",
+            portable_atomic_unstable_asm_experimental_arch,
+            any(
+                target_feature = "quadword-atomics",
+                portable_atomic_target_feature = "quadword-atomics",
+                all(
+                    feature = "fallback",
+                    not(portable_atomic_no_outline_atomics),
+                    portable_atomic_outline_atomics, // TODO(powerpc64): currently disabled by default
+                    any(
+                        all(
+                            target_os = "linux",
+                            any(
+                                target_env = "gnu",
+                                all(
+                                    any(target_env = "musl", target_env = "ohos"),
+                                    not(target_feature = "crt-static"),
+                                ),
+                                portable_atomic_outline_atomics,
+                            ),
+                        ),
+                        target_os = "android",
+                        target_os = "freebsd",
+                    ),
+                    not(any(miri, portable_atomic_sanitize_thread)),
+                ),
+            ),
+        ),
+        all(target_arch = "s390x", portable_atomic_unstable_asm_experimental_arch),
+    )))]
+    pub(crate) use self::fallback::{AtomicI128, AtomicU128};
+}
+
+// 64-bit atomics (platform-specific)
+// pre-v6 ARM Linux
+#[cfg(feature = "fallback")]
+#[cfg(all(
+    target_arch = "arm",
+    not(any(miri, portable_atomic_sanitize_thread)),
+    not(portable_atomic_no_asm),
+    any(target_os = "linux", target_os = "android"),
+    not(any(target_feature = "v6", portable_atomic_target_feature = "v6")),
+    not(portable_atomic_no_outline_atomics),
+))]
+#[cfg_attr(portable_atomic_no_cfg_target_has_atomic, cfg(portable_atomic_no_atomic_64))]
+#[cfg_attr(not(portable_atomic_no_cfg_target_has_atomic), cfg(not(target_has_atomic = "64")))]
+pub(crate) use self::arm_linux::{AtomicI64, AtomicU64};
+
+// 128-bit atomics (platform-specific)
+// aarch64
+#[cfg(all(
+    target_arch = "aarch64",
+    any(not(portable_atomic_no_asm), portable_atomic_unstable_asm),
+))]
+pub(crate) use self::aarch64::{AtomicI128, AtomicU128};
+// x86_64 & (cmpxchg16b | outline-atomics)
+#[cfg(all(
+    target_arch = "x86_64",
+    any(not(portable_atomic_no_asm), portable_atomic_unstable_asm),
+    any(
+        target_feature = "cmpxchg16b",
+        portable_atomic_target_feature = "cmpxchg16b",
+        all(
+            feature = "fallback",
+            not(portable_atomic_no_cmpxchg16b_target_feature),
+            not(portable_atomic_no_outline_atomics),
+            not(any(target_env = "sgx", miri)),
+        ),
+    ),
+))]
+pub(crate) use self::x86_64::{AtomicI128, AtomicU128};
+// powerpc64 & (pwr8 | outline-atomics)
+#[cfg(all(
+    target_arch = "powerpc64",
+    portable_atomic_unstable_asm_experimental_arch,
+    any(
+        target_feature = "quadword-atomics",
+        portable_atomic_target_feature = "quadword-atomics",
+        all(
+            feature = "fallback",
+            not(portable_atomic_no_outline_atomics),
+            portable_atomic_outline_atomics, // TODO(powerpc64): currently disabled by default
+            any(
+                all(
+                    target_os = "linux",
+                    any(
+                        target_env = "gnu",
+                        all(
+                            any(target_env = "musl", target_env = "ohos"),
+                            not(target_feature = "crt-static"),
+                        ),
+                        portable_atomic_outline_atomics,
+                    ),
+                ),
+                target_os = "android",
+                target_os = "freebsd",
+            ),
+            not(any(miri, portable_atomic_sanitize_thread)),
+        ),
+    ),
+))]
+pub(crate) use self::powerpc64::{AtomicI128, AtomicU128};
+// s390x
+#[cfg(all(target_arch = "s390x", portable_atomic_unstable_asm_experimental_arch))]
+pub(crate) use self::s390x::{AtomicI128, AtomicU128};