[llvm] [Support] Adjust .note.GNU-stack guard in Support/BLAKE3/blake3_*_x86… (PR #76229)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-support

Author: Rainer Orth (rorth)

<details>
<summary>Changes</summary>

…-64_unix.S

When using GNU ld 2.41 on FreeBSD 14.0/amd64, there are linker warnings like
```
/vol/gcc/bin/gld-2.41: warning: blake3_avx512_x86-64_unix.S.o: missing .note.GNU-stack section implies executable stack
/vol/gcc/bin/gld-2.41: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
```
This can be fixed by adjusting the guard of the `.note.GNU-stack` sections in `blake3_*_x86-64_unix.S` to match other instances.

Tested on `amd64-pc-freebsd14.0`.

---
Full diff: https://github.com/llvm/llvm-project/pull/76229.diff


4 Files Affected:

- (modified) llvm/lib/Support/BLAKE3/blake3_avx2_x86-64_unix.S (+1-1) 
- (modified) llvm/lib/Support/BLAKE3/blake3_avx512_x86-64_unix.S (+1-1) 
- (modified) llvm/lib/Support/BLAKE3/blake3_sse2_x86-64_unix.S (+1-1) 
- (modified) llvm/lib/Support/BLAKE3/blake3_sse41_x86-64_unix.S (+1-1) 


``````````diff
diff --git a/llvm/lib/Support/BLAKE3/blake3_avx2_x86-64_unix.S b/llvm/lib/Support/BLAKE3/blake3_avx2_x86-64_unix.S
index 69fc0936d73c56..a1210f98d5fa99 100644
--- a/llvm/lib/Support/BLAKE3/blake3_avx2_x86-64_unix.S
+++ b/llvm/lib/Support/BLAKE3/blake3_avx2_x86-64_unix.S
@@ -2,7 +2,7 @@
 
 #include "llvm_blake3_prefix.h"
 
-#if defined(__ELF__) && defined(__linux__)
+#if defined(__ELF__) && (defined(__linux__) || defined(__FreeBSD__) || defined(__Fuchsia__))
 .section .note.GNU-stack,"",%progbits
 #endif
 
diff --git a/llvm/lib/Support/BLAKE3/blake3_avx512_x86-64_unix.S b/llvm/lib/Support/BLAKE3/blake3_avx512_x86-64_unix.S
index f04a135dd1bc48..877359de93c085 100644
--- a/llvm/lib/Support/BLAKE3/blake3_avx512_x86-64_unix.S
+++ b/llvm/lib/Support/BLAKE3/blake3_avx512_x86-64_unix.S
@@ -2,7 +2,7 @@
 
 #include "llvm_blake3_prefix.h"
 
-#if defined(__ELF__) && defined(__linux__)
+#if defined(__ELF__) && (defined(__linux__) || defined(__FreeBSD__) || defined(__Fuchsia__))
 .section .note.GNU-stack,"",%progbits
 #endif
 
diff --git a/llvm/lib/Support/BLAKE3/blake3_sse2_x86-64_unix.S b/llvm/lib/Support/BLAKE3/blake3_sse2_x86-64_unix.S
index 9a4f5eb7318bf9..bd8cb8e888e6fe 100644
--- a/llvm/lib/Support/BLAKE3/blake3_sse2_x86-64_unix.S
+++ b/llvm/lib/Support/BLAKE3/blake3_sse2_x86-64_unix.S
@@ -2,7 +2,7 @@
 
 #include "llvm_blake3_prefix.h"
 
-#if defined(__ELF__) && defined(__linux__)
+#if defined(__ELF__) && (defined(__linux__) || defined(__FreeBSD__) || defined(__Fuchsia__))
 .section .note.GNU-stack,"",%progbits
 #endif
 
diff --git a/llvm/lib/Support/BLAKE3/blake3_sse41_x86-64_unix.S b/llvm/lib/Support/BLAKE3/blake3_sse41_x86-64_unix.S
index 1be4ed744426b0..b273047630883a 100644
--- a/llvm/lib/Support/BLAKE3/blake3_sse41_x86-64_unix.S
+++ b/llvm/lib/Support/BLAKE3/blake3_sse41_x86-64_unix.S
@@ -2,7 +2,7 @@
 
 #include "llvm_blake3_prefix.h"
 
-#if defined(__ELF__) && defined(__linux__)
+#if defined(__ELF__) && (defined(__linux__) || defined(__FreeBSD__) || defined(__Fuchsia__))
 .section .note.GNU-stack,"",%progbits
 #endif
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/76229