Messages in this thread | | | Date | Fri, 16 Apr 2021 10:12:58 -0500 | From | Josh Poimboeuf <> | Subject | Re: [PATCH v2] X86: Makefile: Replace -pg with CC_FLAGS_FTRACE |
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Adding Steven Rostedt (ftrace maintainer).
On Fri, Apr 16, 2021 at 01:39:28PM +0800, zhaoxiao wrote: > In preparation for x86 supporting ftrace built on other compiler > options, let's have the x86 Makefiles remove the $(CC_FLAGS_FTRACE) > flags, whatever these may be, rather than assuming '-pg'. > > There should be no functional change as a result of this patch. > > Signed-off-by: zhaoxiao <zhaoxiao@uniontech.com> > --- > v2: add the same change for the other Makefile in arch/x86 directory. > arch/x86/entry/vdso/Makefile | 8 ++++---- > arch/x86/kernel/Makefile | 16 ++++++++-------- > arch/x86/kernel/cpu/Makefile | 4 ++-- > arch/x86/lib/Makefile | 2 +- > arch/x86/mm/Makefile | 4 ++-- > arch/x86/xen/Makefile | 6 +++--- > 6 files changed, 20 insertions(+), 20 deletions(-) > > diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile > index 05c4abc2fdfd..c5bd91bf9f93 100644 > --- a/arch/x86/entry/vdso/Makefile > +++ b/arch/x86/entry/vdso/Makefile > @@ -96,10 +96,10 @@ $(vobjs): KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_LTO) $(GCC_PLUGINS_CFLAGS) $( > # > # vDSO code runs in userspace and -pg doesn't help with profiling anyway. > # > -CFLAGS_REMOVE_vclock_gettime.o = -pg > -CFLAGS_REMOVE_vdso32/vclock_gettime.o = -pg > -CFLAGS_REMOVE_vgetcpu.o = -pg > -CFLAGS_REMOVE_vsgx.o = -pg > +CFLAGS_REMOVE_vclock_gettime.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_vdso32/vclock_gettime.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_vgetcpu.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_vsgx.o = $(CC_FLAGS_FTRACE) > > # > # X32 processes use x32 vDSO to access 64bit kernel data. > diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile > index 2ddf08351f0b..2811fc6a17ba 100644 > --- a/arch/x86/kernel/Makefile > +++ b/arch/x86/kernel/Makefile > @@ -13,14 +13,14 @@ CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE) > > ifdef CONFIG_FUNCTION_TRACER > # Do not profile debug and lowlevel utilities > -CFLAGS_REMOVE_tsc.o = -pg > -CFLAGS_REMOVE_paravirt-spinlocks.o = -pg > -CFLAGS_REMOVE_pvclock.o = -pg > -CFLAGS_REMOVE_kvmclock.o = -pg > -CFLAGS_REMOVE_ftrace.o = -pg > -CFLAGS_REMOVE_early_printk.o = -pg > -CFLAGS_REMOVE_head64.o = -pg > -CFLAGS_REMOVE_sev-es.o = -pg > +CFLAGS_REMOVE_tsc.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_paravirt-spinlocks.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_pvclock.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_kvmclock.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_early_printk.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_head64.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_sev-es.o = $(CC_FLAGS_FTRACE) > endif > > KASAN_SANITIZE_head$(BITS).o := n > diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile > index 637b499450d1..4435c6de9145 100644 > --- a/arch/x86/kernel/cpu/Makefile > +++ b/arch/x86/kernel/cpu/Makefile > @@ -5,8 +5,8 @@ > > # Don't trace early stages of a secondary CPU boot > ifdef CONFIG_FUNCTION_TRACER > -CFLAGS_REMOVE_common.o = -pg > -CFLAGS_REMOVE_perf_event.o = -pg > +CFLAGS_REMOVE_common.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_perf_event.o = $(CC_FLAGS_FTRACE) > endif > > # If these files are instrumented, boot hangs during the first second. > diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile > index bad4dee4f0e4..0aa71b8a5bc1 100644 > --- a/arch/x86/lib/Makefile > +++ b/arch/x86/lib/Makefile > @@ -21,7 +21,7 @@ KASAN_SANITIZE_cmdline.o := n > KCSAN_SANITIZE_cmdline.o := n > > ifdef CONFIG_FUNCTION_TRACER > -CFLAGS_REMOVE_cmdline.o = -pg > +CFLAGS_REMOVE_cmdline.o = $(CC_FLAGS_FTRACE) > endif > > CFLAGS_cmdline.o := -fno-stack-protector -fno-jump-tables > diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile > index 5864219221ca..91883d5a0293 100644 > --- a/arch/x86/mm/Makefile > +++ b/arch/x86/mm/Makefile > @@ -12,8 +12,8 @@ KASAN_SANITIZE_mem_encrypt_identity.o := n > KCSAN_SANITIZE := n > > ifdef CONFIG_FUNCTION_TRACER > -CFLAGS_REMOVE_mem_encrypt.o = -pg > -CFLAGS_REMOVE_mem_encrypt_identity.o = -pg > +CFLAGS_REMOVE_mem_encrypt.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_mem_encrypt_identity.o = $(CC_FLAGS_FTRACE) > endif > > obj-y := init.o init_$(BITS).o fault.o ioremap.o extable.o mmap.o \ > diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile > index 40b5779fce21..179dfc124c94 100644 > --- a/arch/x86/xen/Makefile > +++ b/arch/x86/xen/Makefile > @@ -2,9 +2,9 @@ > > ifdef CONFIG_FUNCTION_TRACER > # Do not profile debug and lowlevel utilities > -CFLAGS_REMOVE_spinlock.o = -pg > -CFLAGS_REMOVE_time.o = -pg > -CFLAGS_REMOVE_irq.o = -pg > +CFLAGS_REMOVE_spinlock.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_time.o = $(CC_FLAGS_FTRACE) > +CFLAGS_REMOVE_irq.o = $(CC_FLAGS_FTRACE) > endif > > # Make sure early boot has no stackprotector > -- > 2.20.1 > > >
-- Josh
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