[compiler-rt] [compiler-rt][AArch64][Android] Use getauxval on Android. (PR #102979)
Saleem Abdulrasool via llvm-commits
llvm-commits at lists.llvm.org
Tue Aug 13 07:50:02 PDT 2024
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@@ -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; }
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compnerd wrote:
It avoids the macros and allows us to have a single platform agnostic implementation. Over time, we would drop the use of the underscore variant of the function.
https://github.com/llvm/llvm-project/pull/102979
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