linux-kernel - [PATCH 2/8] selftests: x86: check_initial_reg_state: remove -no-pie while using -static

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Message-Id: <20240501122918.3831734-3-usama.anjum@collabora.com>
Date: Wed,  1 May 2024 17:29:12 +0500
From: Muhammad Usama Anjum <usama.anjum@...labora.com>
To: Shuah Khan <shuah@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nick Desaulniers <ndesaulniers@...gle.com>,
	Bill Wendling <morbo@...gle.com>,
	Justin Stitt <justinstitt@...gle.com>,
	Muhammad Usama Anjum <usama.anjum@...labora.com>,
	Rick Edgecombe <rick.p.edgecombe@...el.com>,
	"Mike Rapoport (IBM)" <rppt@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Binbin Wu <binbin.wu@...ux.intel.com>,
	"Chang S. Bae" <chang.seok.bae@...el.com>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	llvm@...ts.linux.dev
Cc: kernel@...labora.com
Subject: [PATCH 2/8] selftests: x86: check_initial_reg_state: remove -no-pie while using -static

The -static clang flag ignores -no-pie flag. Hence following warning is
generated. Fix the warning by removing the -no-pie flag before
specifying -static flag.

clang: warning: argument unused during compilation: '-no-pie' [-Wunused-command-line-argument]

Signed-off-by: Muhammad Usama Anjum <usama.anjum@...labora.com>
---
 tools/testing/selftests/x86/Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile
index 671b1819694ff..b0f5b5ff79b8d 100644
--- a/tools/testing/selftests/x86/Makefile
+++ b/tools/testing/selftests/x86/Makefile
@@ -108,8 +108,9 @@ $(OUTPUT)/test_syscall_vdso_32: thunks_32.S
 # check_initial_reg_state is special: it needs a custom entry, and it
 # needs to be static so that its interpreter doesn't destroy its initial
 # state.
-$(OUTPUT)/check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static
-$(OUTPUT)/check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static
+CFLAGS2:=$(filter-out -no-pie,$(CFLAGS))
+$(OUTPUT)/check_initial_reg_state_32: CFLAGS2 += -Wl,-ereal_start -static
+$(OUTPUT)/check_initial_reg_state_64: CFLAGS2 += -Wl,-ereal_start -static
 
 $(OUTPUT)/nx_stack_32: CFLAGS += -Wl,-z,noexecstack
 $(OUTPUT)/nx_stack_64: CFLAGS += -Wl,-z,noexecstack
-- 
2.39.2