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Commit 901bb028 authored by Hendrik Brueckner's avatar Hendrik Brueckner Committed by Arnaldo Carvalho de Melo
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perf trace: Use generated syscall table on s390 too 



This should speed up accessing new system calls introduced with the
kernel rather than waiting for libaudit updates to include them.

It also enables users to specify wildcards, for example, perf trace -e
'open*', just like was already possible on x86.

Signed-off-by: default avatarHendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: default avatarThomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: linux-s390@vger.kernel.org
LPU-Reference: 1512635281-20733-2-git-send-email-brueckner@linux.vnet.ibm.com
Link: https://lkml.kernel.org/n/tip-htplh3nbrivi7g3cffbh4fsu@git.kernel.org


[ split from a larger patch ]
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 164a747f

tools/perf/Makefile.config

+9 −1
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ include $(srctree)/tools/scripts/Makefile.arch 
$(call detected_var,SRCARCH)



NO_PERF_REGS := 1

NO_SYSCALL_TABLE := 1



# Additional ARCH settings for ppc

ifeq ($(SRCARCH),powerpc)
@@ -33,7 +34,8 @@ endif 
ifeq ($(SRCARCH),x86)

  $(call detected,CONFIG_X86)

  ifeq (${IS_64_BIT}, 1)

    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -DHAVE_SYSCALL_TABLE -I$(OUTPUT)arch/x86/include/generated

    NO_SYSCALL_TABLE := 0

    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated

    ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S

    LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma

    $(call detected,CONFIG_X86_64)
@@ -56,12 +58,18 @@ endif 


ifeq ($(ARCH),s390)

  NO_PERF_REGS := 0

  NO_SYSCALL_TABLE := 0

  CFLAGS += -I$(OUTPUT)arch/s390/include/generated

endif



ifeq ($(NO_PERF_REGS),0)

  $(call detected,CONFIG_PERF_REGS)

endif



ifneq ($(NO_SYSCALL_TABLE),1)

  CFLAGS += -DHAVE_SYSCALL_TABLE

endif



# So far there's only x86 and arm libdw unwind support merged in perf.

# Disable it on all other architectures in case libdw unwind

# support is detected in system. Add supported architectures

tools/perf/util/syscalltbl.c

+4 −0
Original line number Diff line number Diff line
@@ -26,6 +26,10 @@ 
#include <asm/syscalls_64.c>

const int syscalltbl_native_max_id = SYSCALLTBL_x86_64_MAX_ID;

static const char **syscalltbl_native = syscalltbl_x86_64;

#elif defined(__s390x__)

#include <asm/syscalls_64.c>

const int syscalltbl_native_max_id = SYSCALLTBL_S390_64_MAX_ID;

static const char **syscalltbl_native = syscalltbl_s390_64;

#endif



struct syscall {