llvm19: fix getauxval symbol on aarch64

srcpkgs/llvm19/patches/compiler-rt-getauxval-aarch64.patch

@@ -0,0 +1,46 @@
+__getauxval is a private symbol in musl, use the public getauxval function
+
+From 3d36920a76e992c9a723ca4d3bccee8d0bef3251 Mon Sep 17 00:00:00 2001
+From: Daniel Kiss <daniel.kiss@arm.com>
+Date: Mon, 12 Aug 2024 23:05:50 +0200
+Subject: [PATCH] [compiler-rt][AArch64][Android] Use getauxval on Android.
+
+__getauxval is a libgcc function that doesn't exist on Android.
+---
+ compiler-rt/lib/builtins/aarch64/sme-abi-init.c | 13 +++++++++----
+ 1 file changed, 9 insertions(+), 4 deletions(-)
+
+diff --git a/compiler-rt/lib/builtins/aarch64/sme-abi-init.c b/compiler-rt/lib/builtins/aarch64/sme-abi-init.c
+index b6ee12170d56d..8b6715bd2254c 100644
+--- a/compiler-rt/lib/builtins/aarch64/sme-abi-init.c
++++ b/compiler-rt/lib/builtins/aarch64/sme-abi-init.c
+@@ -7,7 +7,8 @@ _Bool __aarch64_has_sme_and_tpidr2_el0;
+ 
+ // We have multiple ways to check that the function has SME, depending on our
+ // target.
+-// * For Linux we can use __getauxval().
++// * For Linux/glibc we can use __getauxval().
++// * For Android we can use getauxval().
+ // * For newlib we can use __aarch64_sme_accessible().
+ 
+ #if defined(__linux__)
+@@ -20,11 +21,15 @@ _Bool __aarch64_has_sme_and_tpidr2_el0;
+ #define HWCAP2_SME (1 << 23)
+ #endif
+ 
++#ifdef __ANDROID__
++extern unsigned long int getauxval(unsigned long int);
++#define GETAUXVAL(x) getauxval(x)
++#else
+ extern unsigned long int __getauxval (unsigned long int);
++#define GETAUXVAL(x) __getauxval(x)
++#endif
+ 
+-static _Bool has_sme(void) {
+-  return __getauxval(AT_HWCAP2) & HWCAP2_SME;
+-}
++static _Bool has_sme(void) { return GETAUXVAL(AT_HWCAP2) & HWCAP2_SME; }
+ 
+ #else  // defined(__linux__)
+ 
+

srcpkgs/llvm19/template

@@ -1,7 +1,7 @@
 # Template file for 'llvm19'
 pkgname=llvm19
 version=19.1.4
-revision=2
+revision=3
 build_wrksrc=llvm
 build_style=cmake
 _llvm_prefix=lib/llvm/19