[libc] Only include getauxval on AARCH64 targets

[jhuber6]

Summary:
Not all platforms support this function or header, but it was being
included by every test. Move it inside of the ifdef for the only user,
which is aarch64.

[llvmbot]

@llvm/pr-subscribers-libc

Author: Joseph Huber (jhuber6)

Changes

Summary:
Not all platforms support this function or header, but it was being
included by every test. Move it inside of the ifdef for the only user,
which is aarch64.

---

Full diff: https://github.com/llvm/llvm-project/pull/95844.diff

2 Files Affected:

• (modified) libc/test/IntegrationTest/test.cpp (+2-1)
• (modified) libc/test/UnitTest/HermeticTestUtils.cpp (+2-1)

diff --git a/libc/test/IntegrationTest/test.cpp b/libc/test/IntegrationTest/test.cpp
index a8b2f2911fd8e..0c961dbafb840 100644
--- a/libc/test/IntegrationTest/test.cpp
+++ b/libc/test/IntegrationTest/test.cpp
@@ -7,7 +7,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "src/__support/common.h"
-#include "src/sys/auxv/getauxval.h"
 #include <stddef.h>
 #include <stdint.h>
 
@@ -83,6 +82,8 @@ void *realloc(void *ptr, size_t s) {
 void *__dso_handle = nullptr;
 
 #ifdef LIBC_TARGET_ARCH_IS_AARCH64
+#include "src/sys/auxv/getauxval.h"
+
 // Due to historical reasons, libgcc on aarch64 may expect __getauxval to be
 // defined. See also https://gcc.gnu.org/pipermail/gcc-cvs/2020-June/300635.html
 unsigned long __getauxval(unsigned long id) {
diff --git a/libc/test/UnitTest/HermeticTestUtils.cpp b/libc/test/UnitTest/HermeticTestUtils.cpp
index 6e815e6c8aab0..191e54b7344a6 100644
--- a/libc/test/UnitTest/HermeticTestUtils.cpp
+++ b/libc/test/UnitTest/HermeticTestUtils.cpp
@@ -7,7 +7,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "src/__support/common.h"
-#include "src/sys/auxv/getauxval.h"
 #include <stddef.h>
 #include <stdint.h>
 
@@ -111,6 +110,8 @@ void __cxa_pure_virtual() {
 void *__dso_handle = nullptr;
 
 #ifdef LIBC_TARGET_ARCH_IS_AARCH64
+#include "src/sys/auxv/getauxval.h"
+
 // Due to historical reasons, libgcc on aarch64 may expect __getauxval to be
 // defined. See also https://gcc.gnu.org/pipermail/gcc-cvs/2020-June/300635.html
 unsigned long __getauxval(unsigned long id) {