| Message ID | 20231219033217.181779-1-wxjstz@126.com |
|---|---|
| State | Changes Requested |
| Headers | show |
| Series | Makefile: Remove unused code and data | expand |
On Tue, Dec 19, 2023 at 9:02 AM Xiang W <wxjstz@126.com> wrote: > > Add compiler options to create separate sections for functions and > static variables. And add options to the linker to remove unused > sections. > > Signed-off-by: Xiang W <wxjstz@126.com> This patch breaks OpenSBI with LLVM. Regards, Anup > --- > Makefile | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/Makefile b/Makefile > index de4e73a..fbb64f2 100644 > --- a/Makefile > +++ b/Makefile > @@ -331,7 +331,7 @@ GENFLAGS += $(libsbiutils-genflags-y) > GENFLAGS += $(platform-genflags-y) > GENFLAGS += $(firmware-genflags-y) > > -CFLAGS = -g -Wall -Werror -ffreestanding -nostdlib -fno-stack-protector -fno-strict-aliasing > +CFLAGS = -g -Wall -Werror -ffreestanding -nostdlib -fno-stack-protector -fno-strict-aliasing -ffunction-sections -fdata-sections > ifneq ($(DEBUG),) > CFLAGS += -O0 > else > @@ -377,6 +377,7 @@ ARFLAGS = rcs > ELFFLAGS += $(USE_LD_FLAG) > ELFFLAGS += -Wl,--exclude-libs,ALL > ELFFLAGS += -Wl,--build-id=none > +ELFFLAGS += -Wl,--gc-sections > ELFFLAGS += $(platform-ldflags-y) > ELFFLAGS += $(firmware-ldflags-y) > > -- > 2.43.0 > > > -- > opensbi mailing list > opensbi@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/opensbi
diff --git a/Makefile b/Makefile index de4e73a..fbb64f2 100644 --- a/Makefile +++ b/Makefile @@ -331,7 +331,7 @@ GENFLAGS += $(libsbiutils-genflags-y) GENFLAGS += $(platform-genflags-y) GENFLAGS += $(firmware-genflags-y) -CFLAGS = -g -Wall -Werror -ffreestanding -nostdlib -fno-stack-protector -fno-strict-aliasing +CFLAGS = -g -Wall -Werror -ffreestanding -nostdlib -fno-stack-protector -fno-strict-aliasing -ffunction-sections -fdata-sections ifneq ($(DEBUG),) CFLAGS += -O0 else @@ -377,6 +377,7 @@ ARFLAGS = rcs ELFFLAGS += $(USE_LD_FLAG) ELFFLAGS += -Wl,--exclude-libs,ALL ELFFLAGS += -Wl,--build-id=none +ELFFLAGS += -Wl,--gc-sections ELFFLAGS += $(platform-ldflags-y) ELFFLAGS += $(firmware-ldflags-y)
Add compiler options to create separate sections for functions and static variables. And add options to the linker to remove unused sections. Signed-off-by: Xiang W <wxjstz@126.com> --- Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)