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3f3614b4dd
kernel_optimize_test/arch
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Nathan Chancellor 3f3614b4dd MIPS: VDSO: Use CLANG_FLAGS instead of filtering out '--target=' 
commit 76d7fff22be3e4185ee5f9da2eecbd8188e76b2c upstream.

Commit ee67855ecd ("MIPS: vdso: Allow clang's --target flag in VDSO
cflags") allowed the '--target=' flag from the main Makefile to filter
through to the vDSO. However, it did not bring any of the other clang
specific flags for controlling the integrated assembler and the GNU
tools locations (--prefix=, --gcc-toolchain=, and -no-integrated-as).
Without these, we will get a warning (visible with tinyconfig):

arch/mips/vdso/elf.S:14:1: warning: DWARF2 only supports one section per
compilation unit
.pushsection .note.Linux, "a",@note ; .balign 4 ; .long 2f - 1f ; .long
4484f - 3f ; .long 0 ; 1:.asciz "Linux" ; 2:.balign 4 ; 3:
^
arch/mips/vdso/elf.S:34:2: warning: DWARF2 only supports one section per
compilation unit
 .section .mips_abiflags, "a"
 ^

All of these flags are bundled up under CLANG_FLAGS in the main Makefile
and exported so that they can be added to Makefiles that set their own
CFLAGS. Use this value instead of filtering out '--target=' so there is
no warning and all of the tools are properly used.

Cc: stable@vger.kernel.org
Fixes: ee67855ecd ("MIPS: vdso: Allow clang's --target flag in VDSO cflags")
Link: https://github.com/ClangBuiltLinux/linux/issues/1256
Reported-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 11:38:26 +01:00
..
alpha
arc arch/arc: add copy_user_page() to <asm/page.h> to fix build error on ARC 2021-01-19 18:27:26 +01:00
arm ARM: 9065/1: OABI compat: fix build when EPOLL is not enabled 2021-03-04 11:38:10 +01:00
arm64 arm64: Add missing ISB after invalidating TLB in __primary_switch 2021-03-04 11:38:20 +01:00
c6x
csky csky: Fix a size determination in gpr_get() 2021-03-04 11:38:21 +01:00
h8300 h8300: fix PREEMPTION build, TI_PRE_COUNT undefined 2021-02-17 11:02:28 +01:00
hexagon
ia64
m68k
microblaze
mips MIPS: VDSO: Use CLANG_FLAGS instead of filtering out '--target=' 2021-03-04 11:38:26 +01:00
nds32
nios2 nios2: fixed broken sys_clone syscall 2021-03-04 11:38:16 +01:00
openrisc
parisc parisc: Enable -mlong-calls gcc option by default when !CONFIG_MODULES 2021-02-03 23:28:37 +01:00
powerpc powerpc/kuap: Restore AMR after replaying soft interrupts 2021-03-04 11:38:06 +01:00
riscv riscv: virt_addr_valid must check the address belongs to linear mapping 2021-02-17 11:02:23 +01:00
s390 s390: uv: Fix sysfs max number of VCPUs reporting 2021-02-03 23:28:39 +01:00
sh sh: Remove unused HAVE_COPY_THREAD_TLS macro 2021-01-27 11:55:20 +01:00
sparc sparc: fix led.c driver when PROC_FS is not enabled 2021-03-04 11:38:10 +01:00
um um: virtio: free vu_dev only with the contained struct device 2021-02-10 09:29:12 +01:00
x86 KVM: x86/mmu: Expand collapsible SPTE zap for TDP MMU to ZONE_DEVICE and HugeTLB pages 2021-03-04 11:38:20 +01:00
xtensa
.gitignore
Kconfig