Commit-ID: 901bb0280b60782603e999a6c1e30ddfe1c7b0fb
Gitweb: https://git.kernel.org/tip/901bb0280b60782603e999a6c1e30ddfe1c7b0fb
Author: Hendrik Brueckner <brueckner@xxxxxxxxxxxxxxxxxx>
AuthorDate: Thu, 7 Dec 2017 09:27:59 +0100
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 27 Dec 2017 12:15:50 -0300
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 <brueckner@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Thomas Richter <tmricht@xxxxxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Michael Petlan <mpetlan@xxxxxxxxxx>
Cc: linux-s390@xxxxxxxxxxxxxxx
LPU-Reference: 1512635281-20733-2-git-send-email-brueckner@xxxxxxxxxxxxxxxxxx
Link: https://lkml.kernel.org/n/tip-htplh3nbrivi7g3cffbh4fsu@xxxxxxxxxxxxxx
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
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 79b117a..6f73c23 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 6eea7cf..303bdb8 100644
--- a/tools/perf/util/syscalltbl.c
+++ b/tools/perf/util/syscalltbl.c
@@ -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 {
--
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