16 changed files with 1120 additions and 261 deletions
--- a/.gitignore
+++ b/.gitignore
@ -1,2 +1,2 @@
-SOURCES/rustc-1.75.0-src.tar.xz
-SOURCES/wasi-libc-bd950eb128bff337153de217b11270f948d04bb4.tar.gz
+SOURCES/rustc-1.79.0-src.tar.xz
+SOURCES/wasi-libc-wasi-sdk-22.tar.gz
--- a/.rust.metadata
+++ b/.rust.metadata
@ -1,2 +1,2 @@
-9ad7bb54dc9572c103b855cdcc823addbb34d15d SOURCES/rustc-1.75.0-src.tar.xz
-55eaa32c99cc8ec970f2db2d340a605724589f9b SOURCES/wasi-libc-bd950eb128bff337153de217b11270f948d04bb4.tar.gz
+fdd94a3bdb321d18a0021d4dce9b8546a1db2eec SOURCES/rustc-1.79.0-src.tar.xz
+13451249ddb71e69f12565ef4803b71ce4092191 SOURCES/wasi-libc-wasi-sdk-22.tar.gz
--- a/SOURCES/0001-Disable-jump-threading-of-float-equality.patch
+++ b/SOURCES/0001-Disable-jump-threading-of-float-equality.patch
@ -0,0 +1,212 @@
+From 49166c7dd925244f631277b4aa9ae4233f300884 Mon Sep 17 00:00:00 2001
+From: Nilstrieb <48135649+Nilstrieb@users.noreply.github.com>
+Date: Sat, 27 Jul 2024 15:08:11 +0200
+Subject: [PATCH] Disable jump threading of float equality
+
+Jump threading stores values as `u128` (`ScalarInt`) and does its
+comparisons for equality as integer comparisons.
+This works great for integers. Sadly, not everything is an integer.
+
+Floats famously have wonky equality semantcs, with `NaN!=NaN` and
+`0.0 == -0.0`. This does not match our beautiful integer bitpattern
+equality and therefore causes things to go horribly wrong.
+
+While jump threading could be extended to support floats by remembering
+that they're floats in the value state and handling them properly,
+it's signficantly easier to just disable it for now.
+
+(cherry picked from commit eca0a7e72346ba123ace318a0f9c28c57d990aeb)
+---
+ .../rustc_mir_transform/src/jump_threading.rs |  7 +++
+ ...ding.floats.JumpThreading.panic-abort.diff | 59 +++++++++++++++++++
+ ...ing.floats.JumpThreading.panic-unwind.diff | 59 +++++++++++++++++++
+ tests/mir-opt/jump_threading.rs               | 12 ++++
+ 4 files changed, 137 insertions(+)
+ create mode 100644 tests/mir-opt/jump_threading.floats.JumpThreading.panic-abort.diff
+ create mode 100644 tests/mir-opt/jump_threading.floats.JumpThreading.panic-unwind.diff
+
+diff --git a/compiler/rustc_mir_transform/src/jump_threading.rs b/compiler/rustc_mir_transform/src/jump_threading.rs
+index a458297210db..e2d2864ad2a0 100644
+--- a/compiler/rustc_mir_transform/src/jump_threading.rs
+++ b/compiler/rustc_mir_transform/src/jump_threading.rs
+@@ -493,6 +493,13 @@ fn process_assign(
+                     BinOp::Ne => ScalarInt::FALSE,
+                     _ => return None,
+                 };
+                if value.const_.ty().is_floating_point() {
+                    // Floating point equality does not follow bit-patterns.
+                    // -0.0 and NaN both have special rules for equality,
+                    // and therefore we cannot use integer comparisons for them.
+                    // Avoid handling them, though this could be extended in the future.
+                    return None;
+                }
+                 let value = value.const_.normalize(self.tcx, self.param_env).try_to_scalar_int()?;
+                 let conds = conditions.map(self.arena, |c| Condition {
+                     value,
+diff --git a/tests/mir-opt/jump_threading.floats.JumpThreading.panic-abort.diff b/tests/mir-opt/jump_threading.floats.JumpThreading.panic-abort.diff
+new file mode 100644
+index 000000000000..6ca37e96d297
+--- /dev/null
+++ b/tests/mir-opt/jump_threading.floats.JumpThreading.panic-abort.diff
+@@ -0,0 +1,59 @@
+- // MIR for `floats` before JumpThreading
++ // MIR for `floats` after JumpThreading
+  
+  fn floats() -> u32 {
+      let mut _0: u32;
+      let _1: f64;
+      let mut _2: bool;
+      let mut _3: bool;
+      let mut _4: f64;
+      scope 1 {
+          debug x => _1;
+      }
+  
+      bb0: {
+          StorageLive(_1);
+          StorageLive(_2);
+          _2 = const true;
+-         switchInt(move _2) -> [0: bb2, otherwise: bb1];
++         goto -> bb1;
+      }
+  
+      bb1: {
+          _1 = const -0f64;
+          goto -> bb3;
+      }
+  
+      bb2: {
+          _1 = const 1f64;
+          goto -> bb3;
+      }
+  
+      bb3: {
+          StorageDead(_2);
+          StorageLive(_3);
+          StorageLive(_4);
+          _4 = _1;
+          _3 = Eq(move _4, const 0f64);
+          switchInt(move _3) -> [0: bb5, otherwise: bb4];
+      }
+  
+      bb4: {
+          StorageDead(_4);
+          _0 = const 0_u32;
+          goto -> bb6;
+      }
+  
+      bb5: {
+          StorageDead(_4);
+          _0 = const 1_u32;
+          goto -> bb6;
+      }
+  
+      bb6: {
+          StorageDead(_3);
+          StorageDead(_1);
+          return;
+      }
+  }
+  
+diff --git a/tests/mir-opt/jump_threading.floats.JumpThreading.panic-unwind.diff b/tests/mir-opt/jump_threading.floats.JumpThreading.panic-unwind.diff
+new file mode 100644
+index 000000000000..6ca37e96d297
+--- /dev/null
+++ b/tests/mir-opt/jump_threading.floats.JumpThreading.panic-unwind.diff
+@@ -0,0 +1,59 @@
+- // MIR for `floats` before JumpThreading
++ // MIR for `floats` after JumpThreading
+  
+  fn floats() -> u32 {
+      let mut _0: u32;
+      let _1: f64;
+      let mut _2: bool;
+      let mut _3: bool;
+      let mut _4: f64;
+      scope 1 {
+          debug x => _1;
+      }
+  
+      bb0: {
+          StorageLive(_1);
+          StorageLive(_2);
+          _2 = const true;
+-         switchInt(move _2) -> [0: bb2, otherwise: bb1];
++         goto -> bb1;
+      }
+  
+      bb1: {
+          _1 = const -0f64;
+          goto -> bb3;
+      }
+  
+      bb2: {
+          _1 = const 1f64;
+          goto -> bb3;
+      }
+  
+      bb3: {
+          StorageDead(_2);
+          StorageLive(_3);
+          StorageLive(_4);
+          _4 = _1;
+          _3 = Eq(move _4, const 0f64);
+          switchInt(move _3) -> [0: bb5, otherwise: bb4];
+      }
+  
+      bb4: {
+          StorageDead(_4);
+          _0 = const 0_u32;
+          goto -> bb6;
+      }
+  
+      bb5: {
+          StorageDead(_4);
+          _0 = const 1_u32;
+          goto -> bb6;
+      }
+  
+      bb6: {
+          StorageDead(_3);
+          StorageDead(_1);
+          return;
+      }
+  }
+  
+diff --git a/tests/mir-opt/jump_threading.rs b/tests/mir-opt/jump_threading.rs
+index 57f4e4a2654f..3e7e8995f1a3 100644
+--- a/tests/mir-opt/jump_threading.rs
+++ b/tests/mir-opt/jump_threading.rs
+@@ -514,6 +514,16 @@ fn assume(a: u8, b: bool) -> u8 {
+     )
+ }
+ 
+fn floats() -> u32 {
+    // CHECK-LABEL: fn floats(
+    // CHECK: switchInt(
+
+    // Test for issue #128243, where float equality was assumed to be bitwise.
+    // When adding float support, it must be ensured that this continues working properly.
+    let x = if true { -0.0 } else { 1.0 };
+    if x == 0.0 { 0 } else { 1 }
+}
+
+ fn main() {
+     // CHECK-LABEL: fn main(
+     too_complex(Ok(0));
+@@ -528,6 +538,7 @@ fn main() {
+     disappearing_bb(7);
+     aggregate(7);
+     assume(7, false);
+    floats();
+ }
+ 
+ // EMIT_MIR jump_threading.too_complex.JumpThreading.diff
+@@ -542,3 +553,4 @@ fn main() {
+ // EMIT_MIR jump_threading.disappearing_bb.JumpThreading.diff
+ // EMIT_MIR jump_threading.aggregate.JumpThreading.diff
+ // EMIT_MIR jump_threading.assume.JumpThreading.diff
+// EMIT_MIR jump_threading.floats.JumpThreading.diff
+-- 
+2.46.0
+
--- a/SOURCES/0001-Make-issue-122805.rs-big-endian-compatible.patch
+++ b/SOURCES/0001-Make-issue-122805.rs-big-endian-compatible.patch
@ -0,0 +1,49 @@
+From 26fa5c2c300f3c3a3ee3109c009bd4a6803a2a4c Mon Sep 17 00:00:00 2001
+From: Nikita Popov <npopov@redhat.com>
+Date: Tue, 11 Jun 2024 10:13:07 +0200
+Subject: [PATCH] Make issue-122805.rs big endian compatible
+
+Instead of not generating the function at all on big endian (which
+makes the CHECK lines fail), instead use to_le() on big endian,
+so that we essentially perform a bswap for both endiannesses.
+---
+ tests/codegen/issues/issue-122805.rs | 21 ++++++++++++---------
+ 1 file changed, 12 insertions(+), 9 deletions(-)
+
+diff --git a/tests/codegen/issues/issue-122805.rs b/tests/codegen/issues/issue-122805.rs
+index 6d108ada6dd..8e03c6c8884 100644
+--- a/tests/codegen/issues/issue-122805.rs
+++ b/tests/codegen/issues/issue-122805.rs
+@@ -39,17 +39,20 @@
+ // OPT3WINX64-NEXT: store <8 x i16>
+ // CHECK-NEXT: ret void
+ #[no_mangle]
+-#[cfg(target_endian = "little")]
+ pub fn convert(value: [u16; 8]) -> [u8; 16] {
+    #[cfg(target_endian = "little")]
+    let bswap = u16::to_be;
+    #[cfg(target_endian = "big")]
+    let bswap = u16::to_le;
+     let addr16 = [
+-        value[0].to_be(),
+-        value[1].to_be(),
+-        value[2].to_be(),
+-        value[3].to_be(),
+-        value[4].to_be(),
+-        value[5].to_be(),
+-        value[6].to_be(),
+-        value[7].to_be(),
+        bswap(value[0]),
+        bswap(value[1]),
+        bswap(value[2]),
+        bswap(value[3]),
+        bswap(value[4]),
+        bswap(value[5]),
+        bswap(value[6]),
+        bswap(value[7]),
+     ];
+     unsafe { core::mem::transmute::<_, [u8; 16]>(addr16) }
+ }
+-- 
+2.45.1
+
--- a/SOURCES/0001-Use-an-explicit-x86-64-cpu-in-tests-that-are-sensiti.patch
+++ b/SOURCES/0001-Use-an-explicit-x86-64-cpu-in-tests-that-are-sensiti.patch
@ -0,0 +1,264 @@
+From 706f06c39a9e08a4708a53722429d13ae4069c2f Mon Sep 17 00:00:00 2001
+From: Josh Stone <jistone@redhat.com>
+Date: Wed, 1 May 2024 15:25:26 -0700
+Subject: [PATCH] Use an explicit x86-64 cpu in tests that are sensitive to it
+
+There are a few tests that depend on some target features **not** being
+enabled by default, and usually they are correct with the default x86-64
+target CPU. However, in downstream builds we have modified the default
+to fit our distros -- `x86-64-v2` in RHEL 9 and `x86-64-v3` in RHEL 10
+-- and the latter especially trips tests that expect not to have AVX.
+
+These cases are few enough that we can just set them back explicitly.
+---
+ tests/assembly/simd-intrinsic-mask-reduce.rs  |  1 +
+ tests/assembly/x86_64-floating-point-clamp.rs |  2 +-
+ .../codegen/target-feature-inline-closure.rs  |  2 +-
+ tests/ui/asm/x86_64/target-feature-attr.rs    |  1 +
+ .../ui/asm/x86_64/target-feature-attr.stderr  |  8 +++---
+ .../const-eval/const_fn_target_feature.rs     |  2 +-
+ .../rfc-2396-target_feature-11/safe-calls.rs  |  1 +
+ .../safe-calls.stderr                         | 28 +++++++++----------
+ tests/ui/sse2.rs                              |  4 +--
+ 9 files changed, 26 insertions(+), 23 deletions(-)
+
+diff --git a/tests/assembly/simd-intrinsic-mask-reduce.rs b/tests/assembly/simd-intrinsic-mask-reduce.rs
+index 763401755fad..0d77fc410511 100644
+--- a/tests/assembly/simd-intrinsic-mask-reduce.rs
+++ b/tests/assembly/simd-intrinsic-mask-reduce.rs
+@@ -1,6 +1,7 @@
+ // verify that simd mask reductions do not introduce additional bit shift operations
+ //@ revisions: x86 aarch64
+ //@ [x86] compile-flags: --target=x86_64-unknown-linux-gnu -C llvm-args=-x86-asm-syntax=intel
+//@ [x86] compile-flags: -C target-cpu=x86-64
+ //@ [x86] needs-llvm-components: x86
+ //@ [aarch64] compile-flags: --target=aarch64-unknown-linux-gnu
+ //@ [aarch64] needs-llvm-components: aarch64
+diff --git a/tests/assembly/x86_64-floating-point-clamp.rs b/tests/assembly/x86_64-floating-point-clamp.rs
+index 4a72a7f44fa0..b963aee35590 100644
+--- a/tests/assembly/x86_64-floating-point-clamp.rs
+++ b/tests/assembly/x86_64-floating-point-clamp.rs
+@@ -2,7 +2,7 @@
+ // so check to make sure that's what it's actually emitting.
+ 
+ //@ assembly-output: emit-asm
+-//@ compile-flags: --crate-type=lib -O -C llvm-args=-x86-asm-syntax=intel
+//@ compile-flags: --crate-type=lib -O -C llvm-args=-x86-asm-syntax=intel -C target-cpu=x86-64
+ //@ only-x86_64
+ //@ ignore-sgx
+ 
+diff --git a/tests/codegen/target-feature-inline-closure.rs b/tests/codegen/target-feature-inline-closure.rs
+index 88bd413a8707..20bb4e66ff21 100644
+--- a/tests/codegen/target-feature-inline-closure.rs
+++ b/tests/codegen/target-feature-inline-closure.rs
+@@ -1,5 +1,5 @@
+ //@ only-x86_64
+-//@ compile-flags: -Copt-level=3
+//@ compile-flags: -Copt-level=3 -Ctarget-cpu=x86-64
+ 
+ #![crate_type = "lib"]
+ #![feature(target_feature_11)]
+diff --git a/tests/ui/asm/x86_64/target-feature-attr.rs b/tests/ui/asm/x86_64/target-feature-attr.rs
+index 820be132ef79..51829be15065 100644
+--- a/tests/ui/asm/x86_64/target-feature-attr.rs
+++ b/tests/ui/asm/x86_64/target-feature-attr.rs
+@@ -1,4 +1,5 @@
+ //@ only-x86_64
+//@ compile-flags: -C target-cpu=x86-64
+ 
+ #![feature(avx512_target_feature)]
+ 
+diff --git a/tests/ui/asm/x86_64/target-feature-attr.stderr b/tests/ui/asm/x86_64/target-feature-attr.stderr
+index c852726ee7ff..1a9962732cfb 100644
+--- a/tests/ui/asm/x86_64/target-feature-attr.stderr
+++ b/tests/ui/asm/x86_64/target-feature-attr.stderr
+@@ -1,23 +1,23 @@
+ error: register class `ymm_reg` requires the `avx` target feature
+-  --> $DIR/target-feature-attr.rs:18:40
+  --> $DIR/target-feature-attr.rs:19:40
+    |
+ LL |     asm!("vaddps {2:y}, {0:y}, {1:y}", in(ymm_reg) x, in(ymm_reg) y, lateout(ymm_reg) x);
+    |                                        ^^^^^^^^^^^^^
+ 
+ error: register class `ymm_reg` requires the `avx` target feature
+-  --> $DIR/target-feature-attr.rs:18:55
+  --> $DIR/target-feature-attr.rs:19:55
+    |
+ LL |     asm!("vaddps {2:y}, {0:y}, {1:y}", in(ymm_reg) x, in(ymm_reg) y, lateout(ymm_reg) x);
+    |                                                       ^^^^^^^^^^^^^
+ 
+ error: register class `ymm_reg` requires the `avx` target feature
+-  --> $DIR/target-feature-attr.rs:18:70
+  --> $DIR/target-feature-attr.rs:19:70
+    |
+ LL |     asm!("vaddps {2:y}, {0:y}, {1:y}", in(ymm_reg) x, in(ymm_reg) y, lateout(ymm_reg) x);
+    |                                                                      ^^^^^^^^^^^^^^^^^^
+ 
+ error: register class `kreg` requires at least one of the following target features: avx512bw, avx512f
+-  --> $DIR/target-feature-attr.rs:33:23
+  --> $DIR/target-feature-attr.rs:34:23
+    |
+ LL |     asm!("/* {0} */", in(kreg) x);
+    |                       ^^^^^^^^^^
+diff --git a/tests/ui/consts/const-eval/const_fn_target_feature.rs b/tests/ui/consts/const-eval/const_fn_target_feature.rs
+index b56b68a57958..d0de9d8d7a34 100644
+--- a/tests/ui/consts/const-eval/const_fn_target_feature.rs
+++ b/tests/ui/consts/const-eval/const_fn_target_feature.rs
+@@ -1,5 +1,5 @@
+ //@ only-x86_64
+-//@ compile-flags:-C target-feature=+ssse3
+//@ compile-flags: -C target-cpu=x86-64 -C target-feature=+ssse3
+ 
+ #![crate_type = "lib"]
+ 
+diff --git a/tests/ui/rfcs/rfc-2396-target_feature-11/safe-calls.rs b/tests/ui/rfcs/rfc-2396-target_feature-11/safe-calls.rs
+index c73b8d7e4d29..6fb0688008e6 100644
+--- a/tests/ui/rfcs/rfc-2396-target_feature-11/safe-calls.rs
+++ b/tests/ui/rfcs/rfc-2396-target_feature-11/safe-calls.rs
+@@ -1,4 +1,5 @@
+ //@ only-x86_64
+//@ compile-flags: -C target-cpu=x86-64
+ 
+ #![feature(target_feature_11)]
+ 
+diff --git a/tests/ui/rfcs/rfc-2396-target_feature-11/safe-calls.stderr b/tests/ui/rfcs/rfc-2396-target_feature-11/safe-calls.stderr
+index d9d7e297f8e9..fed3da6594cb 100644
+--- a/tests/ui/rfcs/rfc-2396-target_feature-11/safe-calls.stderr
+++ b/tests/ui/rfcs/rfc-2396-target_feature-11/safe-calls.stderr
+@@ -1,5 +1,5 @@
+ error[E0133]: call to function `sse2` with `#[target_feature]` is unsafe and requires unsafe function or block
+-  --> $DIR/safe-calls.rs:25:5
+  --> $DIR/safe-calls.rs:26:5
+    |
+ LL |     sse2();
+    |     ^^^^^^ call to function with `#[target_feature]`
+@@ -8,7 +8,7 @@ LL |     sse2();
+    = note: the sse2 target feature being enabled in the build configuration does not remove the requirement to list it in `#[target_feature]`
+ 
+ error[E0133]: call to function `avx_bmi2` with `#[target_feature]` is unsafe and requires unsafe function or block
+-  --> $DIR/safe-calls.rs:27:5
+  --> $DIR/safe-calls.rs:28:5
+    |
+ LL |     avx_bmi2();
+    |     ^^^^^^^^^^ call to function with `#[target_feature]`
+@@ -16,7 +16,7 @@ LL |     avx_bmi2();
+    = help: in order for the call to be safe, the context requires the following additional target features: avx and bmi2
+ 
+ error[E0133]: call to function `Quux::avx_bmi2` with `#[target_feature]` is unsafe and requires unsafe function or block
+-  --> $DIR/safe-calls.rs:29:5
+  --> $DIR/safe-calls.rs:30:5
+    |
+ LL |     Quux.avx_bmi2();
+    |     ^^^^^^^^^^^^^^^ call to function with `#[target_feature]`
+@@ -24,7 +24,7 @@ LL |     Quux.avx_bmi2();
+    = help: in order for the call to be safe, the context requires the following additional target features: avx and bmi2
+ 
+ error[E0133]: call to function `avx_bmi2` with `#[target_feature]` is unsafe and requires unsafe function or block
+-  --> $DIR/safe-calls.rs:35:5
+  --> $DIR/safe-calls.rs:36:5
+    |
+ LL |     avx_bmi2();
+    |     ^^^^^^^^^^ call to function with `#[target_feature]`
+@@ -32,7 +32,7 @@ LL |     avx_bmi2();
+    = help: in order for the call to be safe, the context requires the following additional target features: avx and bmi2
+ 
+ error[E0133]: call to function `Quux::avx_bmi2` with `#[target_feature]` is unsafe and requires unsafe function or block
+-  --> $DIR/safe-calls.rs:37:5
+  --> $DIR/safe-calls.rs:38:5
+    |
+ LL |     Quux.avx_bmi2();
+    |     ^^^^^^^^^^^^^^^ call to function with `#[target_feature]`
+@@ -40,7 +40,7 @@ LL |     Quux.avx_bmi2();
+    = help: in order for the call to be safe, the context requires the following additional target features: avx and bmi2
+ 
+ error[E0133]: call to function `sse2` with `#[target_feature]` is unsafe and requires unsafe function or block
+-  --> $DIR/safe-calls.rs:43:5
+  --> $DIR/safe-calls.rs:44:5
+    |
+ LL |     sse2();
+    |     ^^^^^^ call to function with `#[target_feature]`
+@@ -49,7 +49,7 @@ LL |     sse2();
+    = note: the sse2 target feature being enabled in the build configuration does not remove the requirement to list it in `#[target_feature]`
+ 
+ error[E0133]: call to function `avx_bmi2` with `#[target_feature]` is unsafe and requires unsafe function or block
+-  --> $DIR/safe-calls.rs:45:5
+  --> $DIR/safe-calls.rs:46:5
+    |
+ LL |     avx_bmi2();
+    |     ^^^^^^^^^^ call to function with `#[target_feature]`
+@@ -57,7 +57,7 @@ LL |     avx_bmi2();
+    = help: in order for the call to be safe, the context requires the following additional target feature: bmi2
+ 
+ error[E0133]: call to function `Quux::avx_bmi2` with `#[target_feature]` is unsafe and requires unsafe function or block
+-  --> $DIR/safe-calls.rs:47:5
+  --> $DIR/safe-calls.rs:48:5
+    |
+ LL |     Quux.avx_bmi2();
+    |     ^^^^^^^^^^^^^^^ call to function with `#[target_feature]`
+@@ -65,7 +65,7 @@ LL |     Quux.avx_bmi2();
+    = help: in order for the call to be safe, the context requires the following additional target feature: bmi2
+ 
+ error[E0133]: call to function `sse2` with `#[target_feature]` is unsafe and requires unsafe function or block
+-  --> $DIR/safe-calls.rs:54:5
+  --> $DIR/safe-calls.rs:55:5
+    |
+ LL |     sse2();
+    |     ^^^^^^ call to function with `#[target_feature]`
+@@ -74,7 +74,7 @@ LL |     sse2();
+    = note: the sse2 target feature being enabled in the build configuration does not remove the requirement to list it in `#[target_feature]`
+ 
+ error[E0133]: call to function `sse2` with `#[target_feature]` is unsafe and requires unsafe function or block
+-  --> $DIR/safe-calls.rs:58:15
+  --> $DIR/safe-calls.rs:59:15
+    |
+ LL | const _: () = sse2();
+    |               ^^^^^^ call to function with `#[target_feature]`
+@@ -83,7 +83,7 @@ LL | const _: () = sse2();
+    = note: the sse2 target feature being enabled in the build configuration does not remove the requirement to list it in `#[target_feature]`
+ 
+ error[E0133]: call to function `sse2_and_fxsr` with `#[target_feature]` is unsafe and requires unsafe function or block
+-  --> $DIR/safe-calls.rs:61:15
+  --> $DIR/safe-calls.rs:62:15
+    |
+ LL | const _: () = sse2_and_fxsr();
+    |               ^^^^^^^^^^^^^^^ call to function with `#[target_feature]`
+@@ -92,7 +92,7 @@ LL | const _: () = sse2_and_fxsr();
+    = note: the fxsr and sse2 target features being enabled in the build configuration does not remove the requirement to list them in `#[target_feature]`
+ 
+ error: call to function `sse2` with `#[target_feature]` is unsafe and requires unsafe block (error E0133)
+-  --> $DIR/safe-calls.rs:68:5
+  --> $DIR/safe-calls.rs:69:5
+    |
+ LL |     sse2();
+    |     ^^^^^^ call to function with `#[target_feature]`
+@@ -101,12 +101,12 @@ LL |     sse2();
+    = help: in order for the call to be safe, the context requires the following additional target feature: sse2
+    = note: the sse2 target feature being enabled in the build configuration does not remove the requirement to list it in `#[target_feature]`
+ note: an unsafe function restricts its caller, but its body is safe by default
+-  --> $DIR/safe-calls.rs:67:1
+  --> $DIR/safe-calls.rs:68:1
+    |
+ LL | unsafe fn needs_unsafe_block() {
+    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ note: the lint level is defined here
+-  --> $DIR/safe-calls.rs:64:8
+  --> $DIR/safe-calls.rs:65:8
+    |
+ LL | #[deny(unsafe_op_in_unsafe_fn)]
+    |        ^^^^^^^^^^^^^^^^^^^^^^
+diff --git a/tests/ui/sse2.rs b/tests/ui/sse2.rs
+index fa6d79713b4b..c203ca2716ff 100644
+--- a/tests/ui/sse2.rs
+++ b/tests/ui/sse2.rs
+@@ -20,6 +20,6 @@ fn main() {
+                 "SSE2 was not detected as available on an x86 platform");
+     }
+     // check a negative case too -- allowed on x86, but not enabled by default
+-    assert!(cfg!(not(target_feature = "avx2")),
+-            "AVX2 shouldn't be detected as available by default on any platform");
+    assert!(cfg!(not(target_feature = "avx512f")),
+            "AVX512 shouldn't be detected as available by default on any platform");
+ }
+-- 
+2.44.0
+
--- a/SOURCES/0001-Use-lld-provided-by-system.patch
+++ b/SOURCES/0001-Use-lld-provided-by-system.patch
@ -48,6 +48,18 @@ index 5abfb8162f70..13cb43bda1a4 100644
 
     // We disable MMX and SSE for now, even though UEFI allows using them. Problem is, you have to
     // enable these CPU features explicitly before their first use, otherwise their instructions
+diff -Naur a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs
+--- a/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs	2024-03-17 12:03:00.000000000 -0700
+++ b/compiler/rustc_target/src/spec/targets/aarch64_unknown_none_softfloat.rs	2024-03-22 10:02:17.742806274 -0700
+@@ -14,7 +14,7 @@
+     let opts = TargetOptions {
+         abi: "softfloat".into(),
+         linker_flavor: LinkerFlavor::Gnu(Cc::No, Lld::Yes),
+-        linker: Some("rust-lld".into()),
+        linker: Some("lld".into()),
+         features: "+v8a,+strict-align,-neon,-fp-armv8".into(),
+         relocation_model: RelocModel::Static,
+         disable_redzone: true,
 -- 
 2.41.0

--- a/SOURCES/0001-bootstrap-allow-disabling-target-self-contained.patch
+++ b/SOURCES/0001-bootstrap-allow-disabling-target-self-contained.patch
@ -1,4 +1,4 @@
-From df0d6f1d8b46db82d7599ca8eff6e8f844cf52f2 Mon Sep 17 00:00:00 2001
+From 2b99134e2884fa56bcab6d360885ec5421048e66 Mon Sep 17 00:00:00 2001
 From: Josh Stone <jistone@redhat.com>
 Date: Thu, 28 Sep 2023 18:14:28 -0700
 Subject: [PATCH 1/2] bootstrap: allow disabling target self-contained
@ -11,12 +11,12 @@ Subject: [PATCH 1/2] bootstrap: allow disabling target self-contained
 4 files changed, 22 insertions(+)

 diff --git a/config.example.toml b/config.example.toml
-index e5df28a49af6..2fcd8b8cb057 100644
+index f94553dd63f7..5ec969c80a37 100644
 --- a/config.example.toml
 +++ b/config.example.toml
-@@ -807,6 +807,11 @@ change-id = 116881
- # target triples containing `-none`, `nvptx`, `switch`, or `-uefi`.
- #no-std = <platform-specific> (bool)
+@@ -869,6 +869,11 @@
+ # argument as the test binary.
+ #runner = <none> (string)
 
 +# Copy libc and CRT objects into the target lib/self-contained/ directory.
 +# Enabled by default on `musl`, `wasi`, and `windows-gnu` targets. Other
@ -27,10 +27,10 @@ index e5df28a49af6..2fcd8b8cb057 100644
 # Distribution options
 #
 diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs
-index 7021a9543582..11555c65ca87 100644
+index e927b491c71e..69a80d01d6b9 100644
 --- a/src/bootstrap/src/core/build_steps/compile.rs
 +++ b/src/bootstrap/src/core/build_steps/compile.rs
-@@ -302,6 +302,10 @@ fn copy_self_contained_objects(
+@@ -356,6 +356,10 @@ fn copy_self_contained_objects(
     compiler: &Compiler,
     target: TargetSelection,
 ) -> Vec<(PathBuf, DependencyType)> {
@ -42,18 +42,18 @@ index 7021a9543582..11555c65ca87 100644
     t!(fs::create_dir_all(&libdir_self_contained));
     let mut target_deps = vec![];
 diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs
-index 0a9175aa3ea5..a2e028b25036 100644
+index 3e1bc9a9acdd..5e24a9cc4f60 100644
 --- a/src/bootstrap/src/core/config/config.rs
 +++ b/src/bootstrap/src/core/config/config.rs
-@@ -533,6 +533,7 @@ pub struct Target {
-     pub wasi_root: Option<PathBuf>,
-     pub qemu_rootfs: Option<PathBuf>,
+@@ -586,6 +586,7 @@ pub struct Target {
+     pub runner: Option<String>,
     pub no_std: bool,
+     pub codegen_backends: Option<Vec<String>>,
 +    pub self_contained: bool,
 }
 
 impl Target {
-@@ -541,6 +542,9 @@ pub fn from_triple(triple: &str) -> Self {
+@@ -594,6 +595,9 @@ pub fn from_triple(triple: &str) -> Self {
         if triple.contains("-none") || triple.contains("nvptx") || triple.contains("switch") {
             target.no_std = true;
         }
@ -63,15 +63,15 @@ index 0a9175aa3ea5..a2e028b25036 100644
         target
     }
 }
-@@ -1051,6 +1055,7 @@ struct TomlTarget {
-         wasi_root: Option<String> = "wasi-root",
-         qemu_rootfs: Option<String> = "qemu-rootfs",
+@@ -1150,6 +1154,7 @@ struct TomlTarget {
         no_std: Option<bool> = "no-std",
+         codegen_backends: Option<Vec<String>> = "codegen-backends",
+         runner: Option<String> = "runner",
 +        self_contained: Option<bool> = "self-contained",
     }
 }
 
-@@ -1600,6 +1605,9 @@ fn get_table(option: &str) -> Result<TomlConfig, toml::de::Error> {
+@@ -1870,6 +1875,9 @@ fn get_table(option: &str) -> Result<TomlConfig, toml::de::Error> {
                 if let Some(s) = cfg.no_std {
                     target.no_std = s;
                 }
@ -82,10 +82,10 @@ index 0a9175aa3ea5..a2e028b25036 100644
                 target.cxx = cfg.cxx.map(PathBuf::from);
                 target.ar = cfg.ar.map(PathBuf::from);
 diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs
-index 33b8f1a7ce72..f36e53187576 100644
+index 5ed6b357e20a..c23b21d65713 100644
 --- a/src/bootstrap/src/lib.rs
 +++ b/src/bootstrap/src/lib.rs
-@@ -1335,6 +1335,11 @@ fn no_std(&self, target: TargetSelection) -> Option<bool> {
+@@ -1348,6 +1348,11 @@ fn no_std(&self, target: TargetSelection) -> Option<bool> {
         self.config.target_config.get(&target).map(|t| t.no_std)
     }
 
@ -98,5 +98,5 @@ index 33b8f1a7ce72..f36e53187576 100644
     /// and `remote-test-server` binaries.
     fn remote_tested(&self, target: TargetSelection) -> bool {
 -- 
-2.41.0
+2.44.0

--- a/SOURCES/0001-bootstrap-only-show-PGO-warnings-when-verbose.patch
+++ b/SOURCES/0001-bootstrap-only-show-PGO-warnings-when-verbose.patch
@ -1,33 +0,0 @@
-From 776146e9ebb6bbe17a37bfad955f3dac95317275 Mon Sep 17 00:00:00 2001
-From: Josh Stone <jistone@redhat.com>
-Date: Thu, 16 Nov 2023 10:42:23 -0800
-Subject: [PATCH] bootstrap: only show PGO warnings when verbose
-
-Building rustc with `--rust-profile-use` is currently dumping a lot of
-warnings of "no profile data available for function" from `rustc_smir`
-and `stable_mir`. These simply aren't exercised by the current profile-
-gathering steps, but that's to be expected for new or experimental
-functionality. I think for most people, these warnings will be just
-noise, so it makes sense to only have them in verbose builds.
---
- src/bootstrap/src/core/build_steps/compile.rs | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
-
-diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs
-index af69860df1c5..51e4195827fc 100644
--- a/src/bootstrap/src/core/build_steps/compile.rs
-+++ b/src/bootstrap/src/core/build_steps/compile.rs
-@@ -887,7 +887,9 @@ fn run(self, builder: &Builder<'_>) {
-         } else if let Some(path) = &builder.config.rust_profile_use {
-             if compiler.stage == 1 {
-                 cargo.rustflag(&format!("-Cprofile-use={path}"));
-                cargo.rustflag("-Cllvm-args=-pgo-warn-missing-function");
-+                if builder.is_verbose() {
-+                    cargo.rustflag("-Cllvm-args=-pgo-warn-missing-function");
-+                }
-                 true
-             } else {
-                 false
-- 
-2.43.0
-
--- a/SOURCES/0002-set-an-external-library-path-for-wasm32-wasi.patch
+++ b/SOURCES/0002-set-an-external-library-path-for-wasm32-wasi.patch
@ -1,19 +1,19 @@
-From 79bb610c8fc5d9df7dd4720ae847b8f17e7b1ad4 Mon Sep 17 00:00:00 2001
+From e3b7d2e3d3b4fcbc6591de606957c0fd59b5e547 Mon Sep 17 00:00:00 2001
 From: Josh Stone <jistone@redhat.com>
 Date: Thu, 28 Sep 2023 18:18:16 -0700
 Subject: [PATCH 2/2] set an external library path for wasm32-wasi

 ---
- compiler/rustc_codegen_ssa/src/back/link.rs           | 9 +++++++++
- compiler/rustc_target/src/spec/mod.rs                 | 2 ++
- compiler/rustc_target/src/spec/targets/wasm32_wasi.rs | 6 +++++-
- 3 files changed, 16 insertions(+), 1 deletion(-)
+ compiler/rustc_codegen_ssa/src/back/link.rs             | 9 +++++++++
+ compiler/rustc_target/src/spec/mod.rs                   | 4 ++++
+ compiler/rustc_target/src/spec/targets/wasm32_wasip1.rs | 7 ++++---
+ 3 files changed, 17 insertions(+), 3 deletions(-)

 diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs
-index dd9d277fb775..3d0f0502f255 100644
+index f5e8d5fc92a9..f4ad3f725427 100644
 --- a/compiler/rustc_codegen_ssa/src/back/link.rs
 +++ b/compiler/rustc_codegen_ssa/src/back/link.rs
-@@ -1496,6 +1496,12 @@ fn get_object_file_path(sess: &Session, name: &str, self_contained: bool) -> Pat
+@@ -1563,6 +1563,12 @@ fn get_object_file_path(sess: &Session, name: &str, self_contained: bool) -> Pat
             return file_path;
         }
     }
@ -26,7 +26,7 @@ index dd9d277fb775..3d0f0502f255 100644
     for search_path in fs.search_paths() {
         let file_path = search_path.dir.join(name);
         if file_path.exists() {
-@@ -1982,6 +1988,9 @@ fn add_library_search_dirs(cmd: &mut dyn Linker, sess: &Session, self_contained:
+@@ -2049,6 +2055,9 @@ fn add_library_search_dirs(cmd: &mut dyn Linker, sess: &Session, self_contained:
         let lib_path = sess.target_filesearch(PathKind::All).get_self_contained_lib_path();
         cmd.include_path(&fix_windows_verbatim_for_gcc(&lib_path));
     }
@ -37,10 +37,10 @@ index dd9d277fb775..3d0f0502f255 100644
 
 /// Add options making relocation sections in the produced ELF files read-only
 diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
-index f04799482c83..25410b37ba24 100644
+index 941d767b850d..cd0a2ce51989 100644
 --- a/compiler/rustc_target/src/spec/mod.rs
 +++ b/compiler/rustc_target/src/spec/mod.rs
-@@ -1874,6 +1874,7 @@ pub struct TargetOptions {
+@@ -1881,6 +1881,7 @@ pub struct TargetOptions {
     /// Objects to link before and after all other object code.
     pub pre_link_objects: CrtObjects,
     pub post_link_objects: CrtObjects,
@ -48,7 +48,7 @@ index f04799482c83..25410b37ba24 100644
     /// Same as `(pre|post)_link_objects`, but when self-contained linking mode is enabled.
     pub pre_link_objects_self_contained: CrtObjects,
     pub post_link_objects_self_contained: CrtObjects,
-@@ -2352,6 +2353,7 @@ fn default() -> TargetOptions {
+@@ -2368,6 +2369,7 @@ fn default() -> TargetOptions {
             relro_level: RelroLevel::None,
             pre_link_objects: Default::default(),
             post_link_objects: Default::default(),
@ -56,23 +56,42 @@ index f04799482c83..25410b37ba24 100644
             pre_link_objects_self_contained: Default::default(),
             post_link_objects_self_contained: Default::default(),
             link_self_contained: LinkSelfContainedDefault::False,
-diff --git a/compiler/rustc_target/src/spec/targets/wasm32_wasi.rs b/compiler/rustc_target/src/spec/targets/wasm32_wasi.rs
-index 6dbcb01ea436..2151f86d0648 100644
--- a/compiler/rustc_target/src/spec/targets/wasm32_wasi.rs
-+++ b/compiler/rustc_target/src/spec/targets/wasm32_wasi.rs
-@@ -86,7 +86,11 @@ pub fn target() -> Target {
-     options.post_link_objects_self_contained = crt_objects::post_wasi_self_contained();
+@@ -3064,6 +3066,7 @@ macro_rules! key {
+         key!(linker_is_gnu_json = "linker-is-gnu", bool);
+         key!(pre_link_objects = "pre-link-objects", link_objects);
+         key!(post_link_objects = "post-link-objects", link_objects);
+        key!(external_lib_path, optional);
+         key!(pre_link_objects_self_contained = "pre-link-objects-fallback", link_objects);
+         key!(post_link_objects_self_contained = "post-link-objects-fallback", link_objects);
+         // Deserializes the backwards-compatible variants of `-Clink-self-contained`
+@@ -3327,6 +3330,7 @@ macro_rules! target_option_val {
+         target_option_val!(linker_is_gnu_json, "linker-is-gnu");
+         target_option_val!(pre_link_objects);
+         target_option_val!(post_link_objects);
+        target_option_val!(external_lib_path);
+         target_option_val!(pre_link_objects_self_contained, "pre-link-objects-fallback");
+         target_option_val!(post_link_objects_self_contained, "post-link-objects-fallback");
+         target_option_val!(link_args - pre_link_args_json, "pre-link-args");
+diff --git a/compiler/rustc_target/src/spec/targets/wasm32_wasip1.rs b/compiler/rustc_target/src/spec/targets/wasm32_wasip1.rs
+index 7cbe9f09e6ca..b524890c2ec5 100644
+--- a/compiler/rustc_target/src/spec/targets/wasm32_wasip1.rs
+++ b/compiler/rustc_target/src/spec/targets/wasm32_wasip1.rs
+@@ -20,11 +20,12 @@ pub fn target() -> Target {
+     options.os = "wasi".into();
+     options.add_pre_link_args(LinkerFlavor::WasmLld(Cc::Yes), &["--target=wasm32-wasi"]);
+ 
+-    options.pre_link_objects_self_contained = crt_objects::pre_wasi_self_contained();
+-    options.post_link_objects_self_contained = crt_objects::post_wasi_self_contained();
+    options.pre_link_objects = crt_objects::pre_wasi_self_contained();
+    options.post_link_objects = crt_objects::post_wasi_self_contained();
 
     // FIXME: Figure out cases in which WASM needs to link with a native toolchain.
 -    options.link_self_contained = LinkSelfContainedDefault::True;
 +    options.link_self_contained = LinkSelfContainedDefault::False;
-+
-+    options.pre_link_objects = options.pre_link_objects_self_contained.clone();
-+    options.post_link_objects = options.post_link_objects_self_contained.clone();
 +    options.external_lib_path = Some("/usr/wasm32-wasi/lib/wasm32-wasi".into());
 
     // Right now this is a bit of a workaround but we're currently saying that
     // the target by default has a static crt which we're taking as a signal
 -- 
-2.41.0
+2.44.0

--- a/SOURCES/cargo_vendor.attr
+++ b/SOURCES/cargo_vendor.attr
@ -0,0 +1,2 @@
+%__cargo_vendor_path     ^%{_defaultlicensedir}(/[^/]+)+/cargo-vendor.txt$
+%__cargo_vendor_provides %{_rpmconfigdir}/cargo_vendor.prov
--- a/SOURCES/cargo_vendor.prov
+++ b/SOURCES/cargo_vendor.prov
@ -0,0 +1,127 @@
+#! /usr/bin/python3 -s
+# Stripped down replacement for cargo2rpm parse-vendor-manifest
+
+import re
+import subprocess
+import sys
+from typing import Optional
+
+
+VERSION_REGEX = re.compile(
+    r"""
+    ^
+    (?P<major>0|[1-9]\d*)
+    \.(?P<minor>0|[1-9]\d*)
+    \.(?P<patch>0|[1-9]\d*)
+    (?:-(?P<pre>(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?
+    (?:\+(?P<build>[0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$
+    """,
+    re.VERBOSE,
+)
+
+
+class Version:
+    """
+    Version that adheres to the "semantic versioning" format.
+    """
+
+    def __init__(self, major: int, minor: int, patch: int, pre: Optional[str] = None, build: Optional[str] = None):
+        self.major: int = major
+        self.minor: int = minor
+        self.patch: int = patch
+        self.pre: Optional[str] = pre
+        self.build: Optional[str] = build
+
+    @staticmethod
+    def parse(version: str) -> "Version":
+        """
+        Parses a version string and return a `Version` object.
+        Raises a `ValueError` if the string does not match the expected format.
+        """
+
+        match = VERSION_REGEX.match(version)
+        if not match:
+            raise ValueError(f"Invalid version: {version!r}")
+
+        matches = match.groupdict()
+
+        major_str = matches["major"]
+        minor_str = matches["minor"]
+        patch_str = matches["patch"]
+        pre = matches["pre"]
+        build = matches["build"]
+
+        major = int(major_str)
+        minor = int(minor_str)
+        patch = int(patch_str)
+
+        return Version(major, minor, patch, pre, build)
+
+    def to_rpm(self) -> str:
+        """
+        Formats the `Version` object as an equivalent RPM version string.
+        Characters that are invalid in RPM versions are replaced ("-" -> "_")
+
+        Build metadata (the optional `Version.build` attribute) is dropped, so
+        the conversion is not lossless for versions where this attribute is not
+        `None`. However, build metadata is not intended to be part of the
+        version (and is not even considered when doing version comparison), so
+        dropping it when converting to the RPM version format is correct.
+        """
+
+        s = f"{self.major}.{self.minor}.{self.patch}"
+        if self.pre:
+            s += f"~{self.pre.replace('-', '_')}"
+        return s
+
+
+def break_the_build(error: str):
+    """
+    This function writes a string that is an invalid RPM dependency specifier,
+    which causes dependency generators to fail and break the build. The
+    additional error message is printed to stderr.
+    """
+
+    print("*** FATAL ERROR ***")
+    print(error, file=sys.stderr)
+
+ 
+def get_cargo_vendor_txt_paths_from_stdin() -> set[str]:  # pragma nocover
+    """
+    Read lines from standard input and filter out lines that look like paths
+    to `cargo-vendor.txt` files. This is how RPM generators pass lists of files.
+    """
+
+    lines = {line.rstrip("\n") for line in sys.stdin.readlines()}
+    return {line for line in lines if line.endswith("/cargo-vendor.txt")}
+
+
+def action_parse_vendor_manifest():
+    paths = get_cargo_vendor_txt_paths_from_stdin()
+
+    for path in paths:
+        with open(path) as file:
+            manifest = file.read()
+
+        for line in manifest.strip().splitlines():
+            crate, version = line.split(" v")
+            print(f"bundled(crate({crate})) = {Version.parse(version).to_rpm()}")
+
+
+def main():
+    try:
+        action_parse_vendor_manifest()
+        exit(0)
+
+    # print an error message that is not a valid RPM dependency
+    # to cause the generator to break the build
+    except (IOError, ValueError) as exc:
+        break_the_build(str(exc))
+        exit(1)
+
+    break_the_build("Uncaught exception: This should not happen, please report a bug.")
+    exit(1)
+
+
+if __name__ == "__main__":
+    main()
--- a/SOURCES/macros.rust-toolset
+++ b/SOURCES/macros.rust-toolset
@ -1,12 +1,7 @@
-# Explicitly use bindir tools, in case others are in the PATH,
-# like the rustup shims in a user's ~/.cargo/bin/.
-#
-# Since cargo 1.31, install only uses $CARGO_HOME/config, ignoring $PWD.
-#   https://github.com/rust-lang/cargo/issues/6397
-# But we can set CARGO_HOME locally, which is a good idea anyway to make sure
-# it never writes to ~/.cargo during rpmbuild.
-%__cargo /usr/bin/env CARGO_HOME=.cargo RUSTFLAGS='%{build_rustflags}' /usr/bin/cargo
+# __rustc: path to the default rustc executable
 %__rustc /usr/bin/rustc
+
+# __rustdoc: path to the default rustdoc executable
 %__rustdoc /usr/bin/rustdoc

 # rustflags_opt_level: default optimization level
@ -40,20 +35,54 @@
  -Copt-level=%rustflags_opt_level
  -Cdebuginfo=%rustflags_debuginfo
  -Ccodegen-units=%rustflags_codegen_units
+  -Cstrip=none
 }

+# __cargo: cargo command with environment variables
+#
+# CARGO_HOME: This ensures cargo reads configuration file from .cargo/config.toml,
+#       and prevents writing any files to $HOME during RPM builds.
+%__cargo /usr/bin/env CARGO_HOME=.cargo RUSTFLAGS='%{build_rustflags}' /usr/bin/cargo
+
 # __cargo_common_opts: common command line flags for cargo
 #
 # _smp_mflags: run builds and tests in parallel
 %__cargo_common_opts %{?_smp_mflags}

-%cargo_prep(V:) (\
-%{__mkdir} -p .cargo \
-cat > .cargo/config << EOF \
+# cargo_prep: macro to set up build environment for cargo projects
+#
+# This involves four steps:
+# - create the ".cargo" directory if it doesn't exist yet
+# - dump custom cargo configuration into ".cargo/config.toml"
+# - remove "Cargo.lock" if it exists (it breaks builds with custom cargo config)
+# - remove "Cargo.toml.orig" if it exists (it breaks running "cargo package")
+#
+# Options:
+#   -V <number>    - unpack and use vendored sources from Source<number> tarball
+#                    (deprecated; use -v instead)
+#   -v <directory> - use vendored sources from <directory>
+#   -N             - Don't set up any registry. Only set up the build configuration.
+%cargo_prep(V:v:N)\
+%{-v:%{-V:%{error:-v and -V are mutually exclusive!}}}\
+%{-v:%{-N:%{error:-v and -N are mutually exclusive!}}}\
+(\
+set -euo pipefail\
+%{__mkdir} -p target/rpm\
+/usr/bin/ln -s rpm target/release\
+%{__rm} -rf .cargo/\
+%{__mkdir} -p .cargo\
+cat > .cargo/config.toml << EOF\
 [build]\
 rustc = "%{__rustc}"\
 rustdoc = "%{__rustdoc}"\
 \
+[profile.rpm]\
+inherits = "release"\
+opt-level = %{rustflags_opt_level}\
+codegen-units = %{rustflags_codegen_units}\
+debug = %{rustflags_debuginfo}\
+strip = "none"\
+\
 [env]\
 CFLAGS = "%{build_cflags}"\
 CXXFLAGS = "%{build_cxxflags}"\
@ -65,27 +94,28 @@ root = "%{buildroot}%{_prefix}"\
 [term]\
 verbose = true\
 EOF\
-%if 0%{-V:1}\
-%{__tar} -xoaf %{S:%{-V*}}\
-cat >> .cargo/config << EOF \
+%{-V:%{__tar} -xoaf %{S:%{-V*}}}\
+%{!?-N:\
+cat >> .cargo/config.toml << EOF\
+[source.vendored-sources]\
+directory = "%{-v*}%{-V:./vendor}"\
 \
 [source.crates-io]\
+registry = "https://crates.io"\
 replace-with = "vendored-sources"\
-\
-[source.vendored-sources]\
-directory = "./vendor"\
-EOF\
-%endif\
+EOF}\
+%{__rm} -f Cargo.toml.orig\
 )

 # __cargo_parse_opts: function-like macro which parses common flags into the
 #       equivalent command-line flags for cargo
 %__cargo_parse_opts(naf:) %{shrink:\
-%{-f:%{-a:%{error:Can't specify both -f(%{-f*}) and -a}}} \
-  %{-n:--no-default-features}                             \
-  %{-a:--all-features}                                    \
-  %{-f:--features %{-f*}}                                 \
-  %{nil}
+    %{-n:%{-a:%{error:Can't specify both -n and -a}}}           \
+    %{-f:%{-a:%{error:Can't specify both -f(%{-f*}) and -a}}}   \
+    %{-n:--no-default-features}                                 \
+    %{-a:--all-features}                                        \
+    %{-f:--features %{-f*}}                                     \
+    %{nil}                                                      \
 }

 # NB: cargo_build/test/install do not use the -n/-a/-f argument parsing like
@ -94,11 +124,11 @@ EOF\
 # explicitly use --no-default-features, --all-features, or --features XYZ.

 # cargo_build: builds the crate with cargo
-%cargo_build \
-%{shrink:\
-  %{__cargo} build                                   \
-    %{__cargo_common_opts}                           \
-    --release                                        \
+%cargo_build\
+%{shrink:                                               \
+    %{__cargo} build                                    \
+    %{__cargo_common_opts}                              \
+    --profile rpm                                       \
 }

 # cargo_test: runs the test suite with cargo
@ -108,12 +138,12 @@ EOF\
 # "cargo test" argument parsing need to be bypassed,
 # i.e. "%%cargo_test -- --skip foo" for skipping all tests with names that
 # match "foo".
-%cargo_test \
-%{shrink:\
-  %{__cargo} test                                    \
-    %{__cargo_common_opts}                           \
-    --release                                        \
-    --no-fail-fast                                   \
+%cargo_test\
+%{shrink:                                               \
+    %{__cargo} test                                     \
+    %{__cargo_common_opts}                              \
+    --profile rpm                                       \
+    --no-fail-fast                                      \
 }

 # cargo_install: install files into the buildroot
@ -123,13 +153,17 @@ EOF\
 # "$CARGO_HOME/.crates.toml" file, which is used to keep track of which version
 # of a specific binary has been installed, but which conflicts between builds
 # of different Rust applications and is not needed when building RPM packages.
-%cargo_install \
-%{shrink:                                                         \
-  %{__cargo} install                                              \
-    %{__cargo_common_opts}                                        \
-    --no-track                                                    \
-    --path .                                                      \
-}                                                                 \
+%cargo_install\
+(\
+set -euo pipefail                                                   \
+  %{shrink:                                                         \
+    %{__cargo} install                                              \
+      %{__cargo_common_opts}                                        \
+      --profile rpm                                                 \
+      --no-track                                                    \
+      --path .                                                      \
+  }                                                                 \
+)

 # cargo_license: print license information for all crate dependencies
 #
@ -145,19 +179,21 @@ EOF\
 # The "cargo tree" command called by this macro will fail if there are missing
 # (optional) dependencies.
 %cargo_license(naf:)\
-%{shrink:\
+(\
+set -euo pipefail\
+%{shrink:                                                           \
    %{__cargo} tree                                                 \
    --workspace                                                     \
    --offline                                                       \
    --edges no-build,no-dev,no-proc-macro                           \
    --no-dedupe                                                     \
-    --target all                                                    \
    %{__cargo_parse_opts %{-n} %{-a} %{-f:-f%{-f*}}}                \
    --prefix none                                                   \
    --format "{l}: {p}"                                             \
    | sed -e "s: ($(pwd)[^)]*)::g" -e "s: / :/:g" -e "s:/: OR :g"   \
-    | sort -u
-}
+    | sort -u                                                       \
+}\
+)

 # cargo_license_summary: print license summary for all crate dependencies
 #
@ -166,16 +202,46 @@ EOF\
 # in the dependency tree. This is useful for determining the correct License
 # tag for packages that contain compiled Rust binaries.
 %cargo_license_summary(naf:)\
-%{shrink:\
+(\
+set -euo pipefail\
+%{shrink:                                                           \
    %{__cargo} tree                                                 \
    --workspace                                                     \
    --offline                                                       \
    --edges no-build,no-dev,no-proc-macro                           \
    --no-dedupe                                                     \
-    --target all                                                    \
    %{__cargo_parse_opts %{-n} %{-a} %{-f:-f%{-f*}}}                \
    --prefix none                                                   \
    --format "# {l}"                                                \
    | sed -e "s: / :/:g" -e "s:/: OR :g"                            \
    | sort -u                                                       \
-}
+}\
+)
+
+# cargo_vendor_manifest: write list of vendored crates and their versions
+#
+# The arguments for the internal "cargo tree" call emulate the logic
+# that determines which crates are included when running "cargo vendor".
+# The results are written to "cargo-vendor.txt".
+#
+# TODO: --all-features may be overly broad; this should be modified to
+# use %%__cargo_parse_opts to handle feature flags.
+%cargo_vendor_manifest()\
+(\
+set -euo pipefail\
+%{shrink:                                                           \
+    %{__cargo} tree                                                 \
+    --workspace                                                     \
+    --offline                                                       \
+    --edges normal,build                                            \
+    --no-dedupe                                                     \
+    --all-features                                                  \
+    --prefix none                                                   \
+    --format "{p}"                                                  \
+    | grep -v "$(pwd)"                                              \
+    | sed -e "s: (proc-macro)::"                                    \
+    | sort -u                                                       \
+    > cargo-vendor.txt                                              \
+}\
+)
+
--- a/SOURCES/rustc-1.75.0-disable-libssh2.patch
+++ b/SOURCES/rustc-1.75.0-disable-libssh2.patch
@ -1,42 +0,0 @@
--- ./rustc-beta-src/src/tools/cargo/Cargo.lock.orig	2023-11-12 12:24:35.000000000 -0800
-+++ rustc-beta-src/src/tools/cargo/Cargo.lock	2023-11-14 17:01:32.010125953 -0800
-@@ -2027,7 +2027,6 @@
- dependencies = [
-  "cc",
-  "libc",
- "libssh2-sys",
-  "libz-sys",
-  "openssl-sys",
-  "pkg-config",
-@@ -2060,20 +2059,6 @@
- ]
- 
- [[package]]
-name = "libssh2-sys"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dc8a030b787e2119a731f1951d6a773e2280c660f8ec4b0f5e1505a386e71ee"
-dependencies = [
- "cc",
- "libc",
- "libz-sys",
- "openssl-sys",
- "pkg-config",
- "vcpkg",
-]
-
-[[package]]
- name = "libz-sys"
- version = "1.1.9"
- source = "registry+https://github.com/rust-lang/crates.io-index"
--- ./rustc-beta-src/src/tools/cargo/Cargo.toml.orig	2023-11-14 17:01:32.010125953 -0800
-+++ rustc-beta-src/src/tools/cargo/Cargo.toml	2023-11-14 17:02:44.645097701 -0800
-@@ -40,7 +40,7 @@
- curl-sys = "0.4.68"
- filetime = "0.2.22"
- flate2 = { version = "1.0.28", default-features = false, features = ["zlib"] }
-git2 = "0.18.1"
-+git2 = { version = "0.18.1", default-features = false, features = ["https"] }
- git2-curl = "0.19.0"
- gix = { version = "0.55.2", default-features = false, features = ["blocking-http-transport-curl", "progress-tree", "revision"] }
- gix-features-for-configuration-only = { version = "0.35.0", package = "gix-features", features = [ "parallel" ] }
--- a/SOURCES/rustc-1.79.0-disable-libssh2.patch
+++ b/SOURCES/rustc-1.79.0-disable-libssh2.patch
@ -0,0 +1,44 @@
+diff -up rustc-1.79.0-src/src/tools/cargo/Cargo.lock.orig rustc-1.79.0-src/src/tools/cargo/Cargo.lock
+--- rustc-1.79.0-src/src/tools/cargo/Cargo.lock.orig	2024-06-13 16:37:16.640599290 -0700
+++ rustc-1.79.0-src/src/tools/cargo/Cargo.lock	2024-06-13 16:37:16.646599231 -0700
+@@ -2150,7 +2150,6 @@ checksum = "ee4126d8b4ee5c9d9ea891dd875c
+ dependencies = [
+  "cc",
+  "libc",
+- "libssh2-sys",
+  "libz-sys",
+  "openssl-sys",
+  "pkg-config",
+@@ -2191,20 +2190,6 @@ dependencies = [
+  "pkg-config",
+  "vcpkg",
+ ]
+-
+-[[package]]
+-name = "libssh2-sys"
+-version = "0.3.0"
+-source = "registry+https://github.com/rust-lang/crates.io-index"
+-checksum = "2dc8a030b787e2119a731f1951d6a773e2280c660f8ec4b0f5e1505a386e71ee"
+-dependencies = [
+- "cc",
+- "libc",
+- "libz-sys",
+- "openssl-sys",
+- "pkg-config",
+- "vcpkg",
+-]
+ 
+ [[package]]
+ name = "libz-sys"
+diff -up rustc-1.79.0-src/src/tools/cargo/Cargo.toml.orig rustc-1.79.0-src/src/tools/cargo/Cargo.toml
+--- rustc-1.79.0-src/src/tools/cargo/Cargo.toml.orig	2024-06-13 16:37:16.646599231 -0700
+++ rustc-1.79.0-src/src/tools/cargo/Cargo.toml	2024-06-13 16:39:06.040526596 -0700
+@@ -44,7 +44,7 @@ curl = "0.4.46"
+ curl-sys = "0.4.72"
+ filetime = "0.2.23"
+ flate2 = { version = "1.0.28", default-features = false, features = ["zlib"] }
+-git2 = "0.18.3"
+git2 = { version = "0.18.3", default-features = false, features = ["https"] }
+ git2-curl = "0.19.0"
+ gix = { version = "0.63.0", default-features = false, features = ["blocking-http-transport-curl", "progress-tree", "revision", "parallel", "dirwalk"] }
+ glob = "0.3.1"
--- a/SOURCES/rustc-1.79.0-unbundle-sqlite.patch
+++ b/SOURCES/rustc-1.79.0-unbundle-sqlite.patch
@ -0,0 +1,23 @@
+diff -up rustc-beta-src/src/tools/cargo/Cargo.lock.orig rustc-beta-src/src/tools/cargo/Cargo.lock
+--- rustc-beta-src/src/tools/cargo/Cargo.lock.orig	2006-07-24 10:21:28.000000000 +0900
+++ rustc-beta-src/src/tools/cargo/Cargo.lock	2024-05-06 14:13:00.172595245 +0900
+@@ -2191,7 +2191,6 @@ version = "0.28.0"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
+ checksum = "0c10584274047cb335c23d3e61bcef8e323adae7c5c8c760540f73610177fc3f"
+ dependencies = [
+- "cc",
+  "pkg-config",
+  "vcpkg",
+ ]
+diff -up rustc-beta-src/src/tools/cargo/Cargo.toml.orig rustc-beta-src/src/tools/cargo/Cargo.toml
+--- rustc-beta-src/src/tools/cargo/Cargo.toml.orig	2024-05-06 14:13:00.173595257 +0900
+++ rustc-beta-src/src/tools/cargo/Cargo.toml	2024-05-06 14:13:54.089275003 +0900
+@@ -77,7 +77,7 @@ proptest = "1.4.0"
+ pulldown-cmark = { version = "0.10.2", default-features = false, features = ["html"] }
+ rand = "0.8.5"
+ regex = "1.10.4"
+-rusqlite = { version = "0.31.0", features = ["bundled"] }
+rusqlite = { version = "0.31.0", features = [] }
+ rustfix = { version = "0.8.2", path = "crates/rustfix" }
+ same-file = "1.0.6"
+ security-framework = "2.10.0"
--- a/SPECS/rust.spec
+++ b/SPECS/rust.spec
@ -1,6 +1,6 @@
 Name:           rust
-Version:        1.75.0
-Release:        1%{?dist}
+Version:        1.79.0
+Release:        2%{?dist}
 Summary:        The Rust Programming Language
 License:        (Apache-2.0 OR MIT) AND (Artistic-2.0 AND BSD-3-Clause AND ISC AND MIT AND MPL-2.0 AND Unicode-DFS-2016)
 # ^ written as: (rust itself) and (bundled libraries)
@ -14,9 +14,9 @@ ExclusiveArch:  %{rust_arches}
 # To bootstrap from scratch, set the channel and date from src/stage0.json
 # e.g. 1.59.0 wants rustc: 1.58.0-2022-01-13
 # or nightly wants some beta-YYYY-MM-DD
-%global bootstrap_version 1.74.0
-%global bootstrap_channel 1.74.0
-%global bootstrap_date 2023-11-16
+%global bootstrap_version 1.78.0
+%global bootstrap_channel 1.78.0
+%global bootstrap_date 2024-05-02

 # Only the specified arches will use bootstrap binaries.
 # NOTE: Those binaries used to be uploaded with every new release, but that was
@ -28,19 +28,22 @@ ExclusiveArch:  %{rust_arches}
 # Define a space-separated list of targets to ship rust-std-static-$triple for
 # cross-compilation. The packages are noarch, but they're not fully
 # reproducible between hosts, so only x86_64 actually builds it.
-#ifarch x86_64
-# FIX: Except on RHEL8 modules, we can't filter a noarch package from shipping
-# on certain arches, namely s390x for its lack of lld. So we need to make it an
-# arch-specific package only for the supported arches.
-%ifnarch s390x
+%ifarch x86_64
 %if 0%{?fedora}
 %global mingw_targets i686-pc-windows-gnu x86_64-pc-windows-gnu
 %endif
-%global wasm_targets wasm32-unknown-unknown wasm32-wasi
+# NB: wasm32-wasi is being gradually replaced by wasm32-wasip1
+# https://blog.rust-lang.org/2024/04/09/updates-to-rusts-wasi-targets.html
+%global wasm_targets wasm32-unknown-unknown wasm32-wasi wasm32-wasip1
 %if 0%{?fedora} || 0%{?rhel} >= 10
 %global extra_targets x86_64-unknown-none x86_64-unknown-uefi
 %endif
 %endif
+%ifarch aarch64
+%if 0%{?fedora} || 0%{?rhel} >= 10
+%global extra_targets aarch64-unknown-none-softfloat
+%endif
+%endif
 %global all_targets %{?mingw_targets} %{?wasm_targets} %{?extra_targets}
 %define target_enabled() %{lua:
  print(string.find(rpm.expand(" %{all_targets} "), rpm.expand(" %1 "), 1, true) or 0)
@ -48,10 +51,8 @@ ExclusiveArch:  %{rust_arches}

 # We need CRT files for *-wasi targets, at least as new as the commit in
 # src/ci/docker/host-x86_64/dist-various-2/build-wasi-toolchain.sh
-# (updated per https://github.com/rust-lang/rust/pull/96907)
 %global wasi_libc_url https://github.com/WebAssembly/wasi-libc
-#global wasi_libc_ref wasi-sdk-20
-%global wasi_libc_ref bd950eb128bff337153de217b11270f948d04bb4
+%global wasi_libc_ref wasi-sdk-22
 %global wasi_libc_name wasi-libc-%{wasi_libc_ref}
 %global wasi_libc_source %{wasi_libc_url}/archive/%{wasi_libc_ref}/%{wasi_libc_name}.tar.gz
 %global wasi_libc_dir %{_builddir}/%{wasi_libc_name}
@ -65,22 +66,33 @@ ExclusiveArch:  %{rust_arches}
 %bcond_with llvm_static

 # We can also choose to just use Rust's bundled LLVM, in case the system LLVM
-# is insufficient.  Rust currently requires LLVM 15.0+.
-%global min_llvm_version 15.0.0
-%global bundled_llvm_version 17.0.5
+# is insufficient.  Rust currently requires LLVM 17.0+.
+%global min_llvm_version 17.0.0
+%global bundled_llvm_version 18.1.7
+#global llvm_compat_version 17
+%global llvm llvm%{?llvm_compat_version}
 %bcond_with bundled_llvm

 # Requires stable libgit2 1.7, and not the next minor soname change.
 # This needs to be consistent with the bindings in vendor/libgit2-sys.
-%global min_libgit2_version 1.7.1
+%global min_libgit2_version 1.7.2
 %global next_libgit2_version 1.8.0~
-%global bundled_libgit2_version 1.7.1
+%global bundled_libgit2_version 1.7.2
 %if 0%{?fedora} >= 39
 %bcond_with bundled_libgit2
 %else
 %bcond_without bundled_libgit2
 %endif

+# Cargo uses UPSERTs with omitted conflict targets
+%global min_sqlite3_version 3.35
+%global bundled_sqlite3_version 3.45.0
+%if 0%{?rhel} && 0%{?rhel} < 10
+%bcond_without bundled_sqlite3
+%else
+%bcond_with bundled_sqlite3
+%endif
+
 %if 0%{?rhel}
 # Disable cargo->libgit2->libssh2 on RHEL, as it's not approved for FIPS (rhbz1732949)
 %bcond_without disabled_libssh2
@ -88,10 +100,27 @@ ExclusiveArch:  %{rust_arches}
 %bcond_with disabled_libssh2
 %endif

+# Reduce rustc's own debuginfo and optimizations to conserve 32-bit memory.
+# e.g. https://github.com/rust-lang/rust/issues/45854
+%global reduced_debuginfo 0
 %if 0%{?__isa_bits} == 32
-# Disable PGO on 32-bit to reduce build memory
+%global reduced_debuginfo 1
+%endif
+# Also on current riscv64 hardware, although future hardware will be
+# able to handle it.
+# e.g. http://fedora.riscv.rocks/koji/buildinfo?buildID=249870
+%ifarch riscv64
+%global reduced_debuginfo 1
+%endif
+
+%if 0%{?reduced_debuginfo}
+%global enable_debuginfo --debuginfo-level=0 --debuginfo-level-std=2
+%global enable_rust_opts --set rust.codegen-units-std=1
 %bcond_with rustc_pgo
 %else
+# Build rustc with full debuginfo, CGU=1, ThinLTO, and PGO.
+%global enable_debuginfo --debuginfo-level=2
+%global enable_rust_opts --set rust.codegen-units=1 --set rust.lto=thin
 %bcond_without rustc_pgo
 %endif

@ -122,16 +151,27 @@ Patch3:         0001-Let-environment-variables-override-some-default-CPUs.patch
 Patch4:         0001-bootstrap-allow-disabling-target-self-contained.patch
 Patch5:         0002-set-an-external-library-path-for-wasm32-wasi.patch

-# https://github.com/rust-lang/rust/pull/117982
-Patch6:         0001-bootstrap-only-show-PGO-warnings-when-verbose.patch
+# We don't want to use the bundled library in libsqlite3-sys
+Patch6:         rustc-1.79.0-unbundle-sqlite.patch
+
+# https://github.com/rust-lang/rust/pull/124597
+Patch7:         0001-Use-an-explicit-x86-64-cpu-in-tests-that-are-sensiti.patch
+
+# Fix codegen test failure on big endian: https://github.com/rust-lang/rust/pull/126263
+Patch8:         0001-Make-issue-122805.rs-big-endian-compatible.patch
+
+# https://github.com/rust-lang/rust/pull/128271
+Patch9:         0001-Disable-jump-threading-of-float-equality.patch

 ### RHEL-specific patches below ###

 # Simple rpm macros for rust-toolset (as opposed to full rust-packaging)
 Source100:      macros.rust-toolset
+Source101:      cargo_vendor.attr
+Source102:      cargo_vendor.prov

 # Disable cargo->libgit2->libssh2 on RHEL, as it's not approved for FIPS (rhbz1732949)
-Patch100:       rustc-1.75.0-disable-libssh2.patch
+Patch100:       rustc-1.79.0-disable-libssh2.patch

 # Get the Rust triple for any arch.
 %{lua: function rust_triple(arch)
@ -207,6 +247,10 @@ BuildRequires:  pkgconfig(zlib)
 BuildRequires:  (pkgconfig(libgit2) >= %{min_libgit2_version} with pkgconfig(libgit2) < %{next_libgit2_version})
 %endif

+%if %{without bundled_sqlite3}
+BuildRequires:  pkgconfig(sqlite3) >= %{min_sqlite3_version}
+%endif
+
 %if %{without disabled_libssh2}
 BuildRequires:  pkgconfig(libssh2)
 %endif
@ -224,10 +268,9 @@ BuildRequires:  ninja-build
 Provides:       bundled(llvm) = %{bundled_llvm_version}
 %else
 BuildRequires:  cmake >= 3.5.1
-%if %defined llvm
+%if %defined llvm_compat_version
 %global llvm_root %{_libdir}/%{llvm}
 %else
-%global llvm llvm
 %global llvm_root %{_prefix}
 %endif
 BuildRequires:  %{llvm}-devel >= %{min_llvm_version}
@ -272,6 +315,14 @@ Requires:       /usr/bin/cc
 # support custom-derive plugins like #[proc_macro_derive(Foo)].
 %global _find_debuginfo_opts --keep-section .rustc

+# The standard library rlibs are essentially static archives, but we don't want
+# to strip them because that impairs the debuginfo of all Rust programs.
+# It also had a tendency to break the cross-compiled libraries:
+# - wasm targets lost the archive index, which we were repairing with llvm-ranlib
+# - uefi targets couldn't link builtins like memcpy, possibly due to lost COMDAT flags
+%global __brp_strip_static_archive %{nil}
+%global __brp_strip_lto %{nil}
+
 %if %{without bundled_llvm}
 %if "%{llvm_root}" == "%{_prefix}" || 0%{?scl:1}
 %global llvm_has_filecheck 1
@ -301,15 +352,10 @@ BuildRequires:  clang
 BuildRequires:  wasi-libc-static
 %endif
 BuildRequires:  lld
-# brp-strip-static-archive breaks the archive index for wasm
-%global __os_install_post \
-%__os_install_post \
-find '%{buildroot}%{rustlibdir}'/wasm*/lib -type f -regex '.*\\.\\(a\\|rlib\\)' -print -exec '%{llvm_root}/bin/llvm-ranlib' '{}' ';' \
-%{nil}
 %endif

 # For profiler_builtins
-BuildRequires:  compiler-rt
+BuildRequires:  compiler-rt%{?llvm_compat_version}

 # This component was removed as of Rust 1.69.0.
 # https://github.com/rust-lang/rust/pull/101841
@ -367,8 +413,7 @@ BuildArch:      noarch
 %if %target_enabled wasm32-unknown-unknown
 %target_package wasm32-unknown-unknown
 Requires:       lld >= 8.0
-# FIX: we can't be noarch while excluding s390x for lack of lld
-# BuildArch:      noarch
+BuildArch:      noarch
 %target_description wasm32-unknown-unknown WebAssembly
 %endif

@ -380,11 +425,22 @@ Provides:       bundled(wasi-libc)
 %else
 Requires:       wasi-libc-static
 %endif
-# FIX: we can't be noarch while excluding s390x for lack of lld
-# BuildArch:      noarch
+BuildArch:      noarch
 %target_description wasm32-wasi WebAssembly
 %endif

+%if %target_enabled wasm32-wasip1
+%target_package wasm32-wasip1
+Requires:       lld >= 8.0
+%if %with bundled_wasi_libc
+Provides:       bundled(wasi-libc)
+%else
+Requires:       wasi-libc-static
+%endif
+BuildArch:      noarch
+%target_description wasm32-wasip1 WebAssembly
+%endif
+
 %if %target_enabled x86_64-unknown-none
 %target_package x86_64-unknown-none
 Requires:       lld
@ -397,6 +453,12 @@ Requires:       lld
 %target_description x86_64-unknown-uefi embedded
 %endif

+%if %target_enabled aarch64-unknown-none-softfloat
+%target_package aarch64-unknown-none-softfloat
+Requires:       lld
+%target_description aarch64-unknown-none-softfloat embedded
+%endif
+

 %package debugger-common
 Summary:        Common debugger pretty printers for Rust
@ -452,6 +514,9 @@ Summary:        Rust's package manager and build tool
 %if %with bundled_libgit2
 Provides:       bundled(libgit2) = %{bundled_libgit2_version}
 %endif
+%if %with bundled_sqlite3
+Provides:       bundled(sqlite) = %{bundled_sqlite3_version}
+%endif
 # For tests:
 BuildRequires:  git-core
 # Cargo is not much use without Rust
@ -567,7 +632,12 @@ rm -rf %{wasi_libc_dir}/dlmalloc/
 %if %without bundled_wasi_libc
 %patch -P5 -p1
 %endif
+%if %without bundled_sqlite3
 %patch -P6 -p1
+%endif
+%patch -P7 -p1
+%patch -P8 -p1
+%patch -P9 -p1

 %if %with disabled_libssh2
 %patch -P100 -p1
@ -592,6 +662,7 @@ mkdir -p src/llvm-project/libunwind/
 %clear_dir vendor/*jemalloc-sys*/jemalloc/
 %clear_dir vendor/libffi-sys*/libffi/
 %clear_dir vendor/libmimalloc-sys*/c_src/mimalloc/
+%clear_dir vendor/libsqlite3-sys*/sqlcipher/
 %clear_dir vendor/libssh2-sys*/libssh2/
 %clear_dir vendor/libz-sys*/src/zlib{,-ng}/
 %clear_dir vendor/lzma-sys*/xz-*/
@ -601,6 +672,10 @@ mkdir -p src/llvm-project/libunwind/
 %clear_dir vendor/libgit2-sys*/libgit2/
 %endif

+%if %without bundled_sqlite3
+%clear_dir vendor/libsqlite3-sys*/sqlite3/
+%endif
+
 %if %with disabled_libssh2
 rm -rf vendor/libssh2-sys*/
 %endif
@ -644,27 +719,19 @@ find -name '*.rs' -type f -perm /111 -exec chmod -v -x '{}' '+'
  print(env)
 end}

-# Set up shared environment variables for build/install/check
-%global rust_env %{?rustflags:RUSTFLAGS="%{rustflags}"} %{rustc_target_cpus}
-%if %without disabled_libssh2
-# convince libssh2-sys to use the distro libssh2
-%global rust_env %{?rust_env} LIBSSH2_SYS_USE_PKG_CONFIG=1
-%endif
-%global export_rust_env %{?rust_env:export %{rust_env}}
+# Set up shared environment variables for build/install/check.
+# *_USE_PKG_CONFIG=1 convinces *-sys crates to use the system library.
+%global rust_env %{shrink:
+  %{?rustflags:RUSTFLAGS="%{rustflags}"}
+  %{rustc_target_cpus}
+  %{!?with_bundled_sqlite3:LIBSQLITE3_SYS_USE_PKG_CONFIG=1}
+  %{!?with_disabled_libssh2:LIBSSH2_SYS_USE_PKG_CONFIG=1}
+}
+%global export_rust_env export %{rust_env}

 %build
 %{export_rust_env}

-%ifarch %{arm} %{ix86}
-# full debuginfo and compiler opts are exhausting memory; just do libstd for now
-# https://github.com/rust-lang/rust/issues/45854
-%define enable_debuginfo --debuginfo-level=0 --debuginfo-level-std=2
-%define enable_rust_opts --set rust.codegen-units-std=1
-%else
-%define enable_debuginfo --debuginfo-level=2
-%define enable_rust_opts --set rust.codegen-units=1 --set rust.lto=thin
-%endif
-
 # Some builders have relatively little memory for their CPU count.
 # At least 2GB per CPU is a good rule of thumb for building rustc.
 ncpus=$(/usr/bin/getconf _NPROCESSORS_ONLN)
@ -690,26 +757,39 @@ fi

 %if %defined wasm_targets
 %if %with bundled_wasi_libc
-%make_build --quiet -C %{wasi_libc_dir} MALLOC_IMPL=emmalloc CC=clang AR=llvm-ar NM=llvm-nm
-%define wasm_target_config --set target.wasm32-wasi.wasi-root=%{wasi_libc_dir}/sysroot
+%define wasi_libc_flags MALLOC_IMPL=emmalloc CC=clang AR=llvm-ar NM=llvm-nm
+%make_build --quiet -C %{wasi_libc_dir} %{wasi_libc_flags} TARGET_TRIPLE=wasm32-wasi
+%make_build --quiet -C %{wasi_libc_dir} %{wasi_libc_flags} TARGET_TRIPLE=wasm32-wasip1
+%define wasm_target_config %{shrink:
+  --set target.wasm32-wasi.wasi-root=%{wasi_libc_dir}/sysroot
+  --set target.wasm32-wasip1.wasi-root=%{wasi_libc_dir}/sysroot
+}
 %else
 %define wasm_target_config %{shrink:
  --set target.wasm32-wasi.wasi-root=%{_prefix}/wasm32-wasi
  --set target.wasm32-wasi.self-contained=false
+  --set target.wasm32-wasip1.wasi-root=%{_prefix}/wasm32-wasi
+  --set target.wasm32-wasip1.self-contained=false
 }
 %endif
 %endif

 # Find the compiler-rt library for the Rust profiler_builtins crate.
+%if %defined llvm_compat_version
+# clang_resource_dir is not defined for compat builds.
+%define profiler /usr/lib/clang/%{llvm_compat_version}/lib/%{_arch}-redhat-linux-gnu/libclang_rt.profile.a
+%else
 %if 0%{?clang_major_version} >= 17
 %define profiler %{clang_resource_dir}/lib/%{_arch}-redhat-linux-gnu/libclang_rt.profile.a
 %else
 # The exact profiler path is version dependent..
 %define profiler %(echo %{_libdir}/clang/??/lib/libclang_rt.profile-*.a)
 %endif
+%endif
 test -r "%{profiler}"

 %configure --disable-option-checking \
+  --docdir=%{_pkgdocdir} \
  --libdir=%{common_libdir} \
  --build=%{rust_triple} --host=%{rust_triple} --target=%{rust_triple} \
  --set target.%{rust_triple}.linker=%{__cc} \
@ -734,40 +814,41 @@ test -r "%{profiler}"
  --set build.doc-stage=2 \
  --set build.install-stage=2 \
  --set build.test-stage=2 \
+  --set build.optimized-compiler-builtins=false \
  --enable-extended \
  --tools=cargo,clippy,rls,rust-analyzer,rustfmt,src \
  --enable-vendor \
  --enable-verbose-tests \
-  --dist-compression-formats=gz \
  --release-channel=%{channel} \
  --release-description="%{?fedora:Fedora }%{?rhel:Red Hat }%{version}-%{release}"

 %global __x %{__python3} ./x.py
-%global __xk %{__x} --keep-stage=0 --keep-stage=1

 %if %with rustc_pgo
 # Build the compiler with profile instrumentation
-PROFRAW="$PWD/build/profiles"
-PROFDATA="$PWD/build/rustc.profdata"
-mkdir -p "$PROFRAW"
-%{__x} build -j "$ncpus" sysroot --rust-profile-generate="$PROFRAW"
+%define profraw $PWD/build/profiles
+%define profdata $PWD/build/rustc.profdata
+mkdir -p "%{profraw}"
+%{__x} build -j "$ncpus" sysroot --rust-profile-generate="%{profraw}"
 # Build cargo as a workload to generate compiler profiles
-env LLVM_PROFILE_FILE="$PROFRAW/default_%%m_%%p.profraw" %{__xk} build cargo
-llvm-profdata merge -o "$PROFDATA" "$PROFRAW"
-rm -r "$PROFRAW" build/%{rust_triple}/stage2*/
-# Rebuild the compiler using the profile data
-%{__x} build -j "$ncpus" sysroot --rust-profile-use="$PROFDATA"
-%else
-# Build the compiler without PGO
-%{__x} build -j "$ncpus" sysroot
+env LLVM_PROFILE_FILE="%{profraw}/default_%%m_%%p.profraw" \
+  %{__x} --keep-stage=0 --keep-stage=1 build cargo
+# Finalize the profile data and clean up the raw files
+%{llvm_root}/bin/llvm-profdata merge -o "%{profdata}" "%{profraw}"
+rm -r "%{profraw}" build/%{rust_triple}/stage2*/
+# Redefine the macro to use that profile data from now on
+%global __x %{__x} --rust-profile-use="%{profdata}"
 %endif

+# Build the compiler normally (with or without PGO)
+%{__x} build -j "$ncpus" sysroot
+
 # Build everything else normally
-%{__xk} build
-%{__xk} doc
+%{__x} build
+%{__x} doc

 for triple in %{?all_targets} ; do
-  %{__xk} build --target=$triple std
+  %{__x} build --target=$triple std
 done

 %install
@ -776,10 +857,10 @@ done
 %endif
 %{export_rust_env}

-DESTDIR=%{buildroot} %{__xk} install
+DESTDIR=%{buildroot} %{__x} install

 for triple in %{?all_targets} ; do
-  DESTDIR=%{buildroot} %{__xk} install --target=$triple std
+  DESTDIR=%{buildroot} %{__x} install --target=$triple std
 done

 # The rls stub doesn't have an install target, but we can just copy it.
@ -825,21 +906,18 @@ find %{buildroot}%{rustlibdir} -type f -name '*.orig' -exec rm -v '{}' '+'
 # We don't actually need to ship any of those python scripts in rust-src anyway.
 find %{buildroot}%{rustlibdir}/src -type f -name '*.py' -exec rm -v '{}' '+'

-# FIXME: __os_install_post will strip the rlibs
-# -- should we find a way to preserve debuginfo?
-
 # Remove unwanted documentation files (we already package them)
-rm -f %{buildroot}%{_docdir}/%{name}/README.md
-rm -f %{buildroot}%{_docdir}/%{name}/COPYRIGHT
-rm -f %{buildroot}%{_docdir}/%{name}/LICENSE
-rm -f %{buildroot}%{_docdir}/%{name}/LICENSE-APACHE
-rm -f %{buildroot}%{_docdir}/%{name}/LICENSE-MIT
-rm -f %{buildroot}%{_docdir}/%{name}/LICENSE-THIRD-PARTY
-rm -f %{buildroot}%{_docdir}/%{name}/*.old
+rm -f %{buildroot}%{_pkgdocdir}/README.md
+rm -f %{buildroot}%{_pkgdocdir}/COPYRIGHT
+rm -f %{buildroot}%{_pkgdocdir}/LICENSE
+rm -f %{buildroot}%{_pkgdocdir}/LICENSE-APACHE
+rm -f %{buildroot}%{_pkgdocdir}/LICENSE-MIT
+rm -f %{buildroot}%{_pkgdocdir}/LICENSE-THIRD-PARTY
+rm -f %{buildroot}%{_pkgdocdir}/*.old

 # Sanitize the HTML documentation
-find %{buildroot}%{_docdir}/%{name}/html -empty -delete
-find %{buildroot}%{_docdir}/%{name}/html -type f -exec chmod -x '{}' '+'
+find %{buildroot}%{_pkgdocdir}/html -empty -delete
+find %{buildroot}%{_pkgdocdir}/html -type f -exec chmod -x '{}' '+'

 # Create the path for crate-devel packages
 mkdir -p %{buildroot}%{_datadir}/cargo/registry
@ -855,6 +933,8 @@ rm -f %{buildroot}%{rustlibdir}/%{rust_triple}/bin/rust-ll*
 %if 0%{?rhel}
 # This allows users to build packages using Rust Toolset.
 %{__install} -D -m 644 %{S:100} %{buildroot}%{rpmmacrodir}/macros.rust-toolset
+%{__install} -D -m 644 %{S:101} %{buildroot}%{_fileattrsdir}/cargo_vendor.attr
+%{__install} -D -m 755 %{S:102} %{buildroot}%{_rpmconfigdir}/cargo_vendor.prov
 %endif


@ -889,17 +969,21 @@ rm -rf "$TMP_HELLO"

 # Bootstrap is excluded because it's not something we ship, and a lot of its
 # tests are geared toward the upstream CI environment.
-timeout -v 90m %{__xk} test --no-fail-fast --skip src/bootstrap || :
+timeout -v 90m %{__x} test --no-fail-fast --skip src/bootstrap || :
 rm -rf "./build/%{rust_triple}/test/"

-timeout -v 30m %{__xk} test --no-fail-fast cargo || :
+%ifarch aarch64
+# https://github.com/rust-lang/rust/issues/123733
+%define cargo_test_skip --test-args "--skip panic_abort_doc_tests"
+%endif
+timeout -v 30m %{__x} test --no-fail-fast cargo %{?cargo_test_skip} || :
 rm -rf "./build/%{rust_triple}/stage2-tools/%{rust_triple}/cit/"

-timeout -v 30m %{__xk} test --no-fail-fast clippy || :
+timeout -v 30m %{__x} test --no-fail-fast clippy || :

-timeout -v 30m %{__xk} test --no-fail-fast rust-analyzer || :
+timeout -v 30m %{__x} test --no-fail-fast rust-analyzer || :

-timeout -v 30m %{__xk} test --no-fail-fast rustfmt || :
+timeout -v 30m %{__x} test --no-fail-fast rustfmt || :


 %ldconfig_scriptlets
@ -960,6 +1044,15 @@ timeout -v 30m %{__xk} test --no-fail-fast rustfmt || :
 %endif
 %endif

+%if %target_enabled wasm32-wasip1
+%target_files wasm32-wasip1
+%if %with bundled_wasi_libc
+%dir %{rustlibdir}/wasm32-wasip1/lib/self-contained
+%{rustlibdir}/wasm32-wasip1/lib/self-contained/crt*.o
+%{rustlibdir}/wasm32-wasip1/lib/self-contained/libc.a
+%endif
+%endif
+
 %if %target_enabled x86_64-unknown-none
 %target_files x86_64-unknown-none
 %endif
@ -968,6 +1061,10 @@ timeout -v 30m %{__xk} test --no-fail-fast rustfmt || :
 %target_files x86_64-unknown-uefi
 %endif

+%if %target_enabled aarch64-unknown-none-softfloat
+%target_files aarch64-unknown-none-softfloat
+%endif
+

 %files debugger-common
 %dir %{rustlibdir}
@ -987,9 +1084,9 @@ timeout -v 30m %{__xk} test --no-fail-fast rustfmt || :


 %files doc
-%docdir %{_docdir}/%{name}
-%dir %{_docdir}/%{name}
-%{_docdir}/%{name}/html
+%docdir %{_pkgdocdir}
+%dir %{_pkgdocdir}
+%{_pkgdocdir}/html
 # former cargo-doc
 %docdir %{_docdir}/cargo
 %dir %{_docdir}/cargo
@ -1036,10 +1133,29 @@ timeout -v 30m %{__xk} test --no-fail-fast rustfmt || :
 %if 0%{?rhel}
 %files toolset
 %{rpmmacrodir}/macros.rust-toolset
+%{_fileattrsdir}/cargo_vendor.attr
+%{_rpmconfigdir}/cargo_vendor.prov
 %endif


 %changelog
+* Tue Aug 13 2024 Josh Stone <jistone@redhat.com> - 1.79.0-2
+- Disable jump threading of float equality
+
+* Fri Jun 21 2024 Josh Stone <jistone@redhat.com> - 1.79.0-1
+- Update to 1.79.0
+
+* Fri Jun 21 2024 Josh Stone <jistone@redhat.com> - 1.78.0-1
+- Update to 1.78.0
+- Make std-static-wasm* noarch again
+
+* Thu May 09 2024 Josh Stone <jistone@redhat.com> - 1.77.2-1
+- Update to 1.77.2.
+
+* Wed Apr 17 2024 Josh Stone <jistone@redhat.com> - 1.76.0-1
+- Update to 1.76.0.
+- Sync rust-toolset macros to rust-packaging v25.2
+
 * Fri Jan 05 2024 Josh Stone <jistone@redhat.com> - 1.75.0-1
 - Update to 1.75.0.