diff mbox series

powerpc: vdso: drop unnecessary cc-ldoption

Message ID 20190423211116.261111-1-ndesaulniers@google.com
State Accepted
Commit 33dda8c32714c1a8f318450af4d1f9f123e2ed24
Headers show
Series powerpc: vdso: drop unnecessary cc-ldoption | expand

Commit Message

Nick Desaulniers April 23, 2019, 9:11 p.m. UTC
Towards the goal of removing cc-ldoption, it seems that --hash-style=
was added to binutils 2.17.50.0.2 in 2006. The minimal required version
of binutils for the kernel according to
Documentation/process/changes.rst is 2.20.

Link: https://gcc.gnu.org/ml/gcc/2007-01/msg01141.html
Cc: clang-built-linux@googlegroups.com
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>

---
 arch/powerpc/kernel/vdso32/Makefile | 5 ++---
 arch/powerpc/kernel/vdso64/Makefile | 5 ++---
 2 files changed, 4 insertions(+), 6 deletions(-)

-- 
2.21.0.593.g511ec345e18-goog

Comments

Nick Desaulniers April 30, 2019, 8:25 p.m. UTC | #1
On Tue, Apr 23, 2019 at 2:11 PM Nick Desaulniers
<ndesaulniers@google.com> wrote:
>

> Towards the goal of removing cc-ldoption, it seems that --hash-style=

> was added to binutils 2.17.50.0.2 in 2006. The minimal required version

> of binutils for the kernel according to

> Documentation/process/changes.rst is 2.20.

>

> Link: https://gcc.gnu.org/ml/gcc/2007-01/msg01141.html

> Cc: clang-built-linux@googlegroups.com

> Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>

> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>

> ---

>  arch/powerpc/kernel/vdso32/Makefile | 5 ++---

>  arch/powerpc/kernel/vdso64/Makefile | 5 ++---

>  2 files changed, 4 insertions(+), 6 deletions(-)

>

> diff --git a/arch/powerpc/kernel/vdso32/Makefile b/arch/powerpc/kernel/vdso32/Makefile

> index ce199f6e4256..06f54d947057 100644

> --- a/arch/powerpc/kernel/vdso32/Makefile

> +++ b/arch/powerpc/kernel/vdso32/Makefile

> @@ -26,9 +26,8 @@ GCOV_PROFILE := n

>  KCOV_INSTRUMENT := n

>  UBSAN_SANITIZE := n

>

> -ccflags-y := -shared -fno-common -fno-builtin

> -ccflags-y += -nostdlib -Wl,-soname=linux-vdso32.so.1 \

> -               $(call cc-ldoption, -Wl$(comma)--hash-style=both)

> +ccflags-y := -shared -fno-common -fno-builtin -nostdlib \

> +       -Wl,-soname=linux-vdso32.so.1 -Wl,--hash-style=both

>  asflags-y := -D__VDSO32__ -s

>

>  obj-y += vdso32_wrapper.o

> diff --git a/arch/powerpc/kernel/vdso64/Makefile b/arch/powerpc/kernel/vdso64/Makefile

> index 28e7d112aa2f..32ebb3522ea1 100644

> --- a/arch/powerpc/kernel/vdso64/Makefile

> +++ b/arch/powerpc/kernel/vdso64/Makefile

> @@ -12,9 +12,8 @@ GCOV_PROFILE := n

>  KCOV_INSTRUMENT := n

>  UBSAN_SANITIZE := n

>

> -ccflags-y := -shared -fno-common -fno-builtin

> -ccflags-y += -nostdlib -Wl,-soname=linux-vdso64.so.1 \

> -               $(call cc-ldoption, -Wl$(comma)--hash-style=both)

> +ccflags-y := -shared -fno-common -fno-builtin -nostdlib \

> +       -Wl,-soname=linux-vdso64.so.1 -Wl,--hash-style=both

>  asflags-y := -D__VDSO64__ -s

>

>  obj-y += vdso64_wrapper.o

> --

> 2.21.0.593.g511ec345e18-goog

>


bumping for review
-- 
Thanks,
~Nick Desaulniers
Nicholas Piggin April 30, 2019, 10:52 p.m. UTC | #2
Nick Desaulniers's on May 1, 2019 6:25 am:
> On Tue, Apr 23, 2019 at 2:11 PM Nick Desaulniers

> <ndesaulniers@google.com> wrote:

>>

>> Towards the goal of removing cc-ldoption, it seems that --hash-style=

>> was added to binutils 2.17.50.0.2 in 2006. The minimal required version

>> of binutils for the kernel according to

>> Documentation/process/changes.rst is 2.20.

>>

>> Link: https://gcc.gnu.org/ml/gcc/2007-01/msg01141.html

>> Cc: clang-built-linux@googlegroups.com

>> Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>

>> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>

>> ---

>>  arch/powerpc/kernel/vdso32/Makefile | 5 ++---

>>  arch/powerpc/kernel/vdso64/Makefile | 5 ++---

>>  2 files changed, 4 insertions(+), 6 deletions(-)

>>

>> diff --git a/arch/powerpc/kernel/vdso32/Makefile b/arch/powerpc/kernel/vdso32/Makefile

>> index ce199f6e4256..06f54d947057 100644

>> --- a/arch/powerpc/kernel/vdso32/Makefile

>> +++ b/arch/powerpc/kernel/vdso32/Makefile

>> @@ -26,9 +26,8 @@ GCOV_PROFILE := n

>>  KCOV_INSTRUMENT := n

>>  UBSAN_SANITIZE := n

>>

>> -ccflags-y := -shared -fno-common -fno-builtin

>> -ccflags-y += -nostdlib -Wl,-soname=linux-vdso32.so.1 \

>> -               $(call cc-ldoption, -Wl$(comma)--hash-style=both)

>> +ccflags-y := -shared -fno-common -fno-builtin -nostdlib \

>> +       -Wl,-soname=linux-vdso32.so.1 -Wl,--hash-style=both

>>  asflags-y := -D__VDSO32__ -s

>>

>>  obj-y += vdso32_wrapper.o

>> diff --git a/arch/powerpc/kernel/vdso64/Makefile b/arch/powerpc/kernel/vdso64/Makefile

>> index 28e7d112aa2f..32ebb3522ea1 100644

>> --- a/arch/powerpc/kernel/vdso64/Makefile

>> +++ b/arch/powerpc/kernel/vdso64/Makefile

>> @@ -12,9 +12,8 @@ GCOV_PROFILE := n

>>  KCOV_INSTRUMENT := n

>>  UBSAN_SANITIZE := n

>>

>> -ccflags-y := -shared -fno-common -fno-builtin

>> -ccflags-y += -nostdlib -Wl,-soname=linux-vdso64.so.1 \

>> -               $(call cc-ldoption, -Wl$(comma)--hash-style=both)

>> +ccflags-y := -shared -fno-common -fno-builtin -nostdlib \

>> +       -Wl,-soname=linux-vdso64.so.1 -Wl,--hash-style=both

>>  asflags-y := -D__VDSO64__ -s

>>

>>  obj-y += vdso64_wrapper.o

>> --

>> 2.21.0.593.g511ec345e18-goog

>>

> 

> bumping for review


This looks like a good cleanup.

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
diff mbox series

Patch

diff --git a/arch/powerpc/kernel/vdso32/Makefile b/arch/powerpc/kernel/vdso32/Makefile
index ce199f6e4256..06f54d947057 100644
--- a/arch/powerpc/kernel/vdso32/Makefile
+++ b/arch/powerpc/kernel/vdso32/Makefile
@@ -26,9 +26,8 @@  GCOV_PROFILE := n
 KCOV_INSTRUMENT := n
 UBSAN_SANITIZE := n
 
-ccflags-y := -shared -fno-common -fno-builtin
-ccflags-y += -nostdlib -Wl,-soname=linux-vdso32.so.1 \
-		$(call cc-ldoption, -Wl$(comma)--hash-style=both)
+ccflags-y := -shared -fno-common -fno-builtin -nostdlib \
+	-Wl,-soname=linux-vdso32.so.1 -Wl,--hash-style=both
 asflags-y := -D__VDSO32__ -s
 
 obj-y += vdso32_wrapper.o
diff --git a/arch/powerpc/kernel/vdso64/Makefile b/arch/powerpc/kernel/vdso64/Makefile
index 28e7d112aa2f..32ebb3522ea1 100644
--- a/arch/powerpc/kernel/vdso64/Makefile
+++ b/arch/powerpc/kernel/vdso64/Makefile
@@ -12,9 +12,8 @@  GCOV_PROFILE := n
 KCOV_INSTRUMENT := n
 UBSAN_SANITIZE := n
 
-ccflags-y := -shared -fno-common -fno-builtin
-ccflags-y += -nostdlib -Wl,-soname=linux-vdso64.so.1 \
-		$(call cc-ldoption, -Wl$(comma)--hash-style=both)
+ccflags-y := -shared -fno-common -fno-builtin -nostdlib \
+	-Wl,-soname=linux-vdso64.so.1 -Wl,--hash-style=both
 asflags-y := -D__VDSO64__ -s
 
 obj-y += vdso64_wrapper.o