From 901bb0280b60782603e999a6c1e30ddfe1c7b0fb Mon Sep 17 00:00:00 2001 From: Hendrik Brueckner Date: Thu, 7 Dec 2017 09:27:59 +0100 Subject: [PATCH] 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: Hendrik Brueckner Reviewed-by: Thomas Richter Cc: Jiri Olsa Cc: Michael Petlan 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: Arnaldo Carvalho de Melo --- tools/perf/Makefile.config | 10 +++++++++- tools/perf/util/syscalltbl.c | 4 ++++ 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 79b117a03fd7..6f73c2316740 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -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 diff --git a/tools/perf/util/syscalltbl.c b/tools/perf/util/syscalltbl.c index 6eea7cff3d4e..303bdb84ab5a 100644 --- a/tools/perf/util/syscalltbl.c +++ b/tools/perf/util/syscalltbl.c @@ -26,6 +26,10 @@ #include const int syscalltbl_native_max_id = SYSCALLTBL_x86_64_MAX_ID; static const char **syscalltbl_native = syscalltbl_x86_64; +#elif defined(__s390x__) +#include +const int syscalltbl_native_max_id = SYSCALLTBL_S390_64_MAX_ID; +static const char **syscalltbl_native = syscalltbl_s390_64; #endif struct syscall {