[tip:perf/urgent] perf s390: Rework system call table creation by using syscall.tbl

2018-02-16 Thread tip-bot for Hendrik Brueckner 
Commit-ID:  690d22d9d4423b4522fb44a71145403eef2df834
Gitweb: https://git.kernel.org/tip/690d22d9d4423b4522fb44a71145403eef2df834
Author: Hendrik Brueckner 
AuthorDate: Thu, 8 Feb 2018 12:47:50 +0100
Committer:  Arnaldo Carvalho de Melo 
CommitDate: Thu, 15 Feb 2018 10:06:08 -0300

perf s390: Rework system call table creation by using syscall.tbl

Recently, s390 uses a syscall.tbl input file to generate its system call
table and unistd uapi header files.  Hence, update mksyscalltbl to use
it as input to create the system table for perf.

Signed-off-by: Hendrik Brueckner 
Cc: Jiri Olsa 
Cc: Michael Petlan 
Cc: Thomas Richter 
Cc: linux-s...@vger.kernel.org
LPU-Reference: 1518090470-2899-4-git-send-email-brueck...@linux.vnet.ibm.com
Link: https://lkml.kernel.org/n/tip-bdyhllhsq1zgxv2qx4m37...@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo 
---
 tools/perf/arch/s390/Makefile| 10 +++---
 tools/perf/arch/s390/entry/syscalls/mksyscalltbl | 18 +++---
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/tools/perf/arch/s390/Makefile b/tools/perf/arch/s390/Makefile
index 48228de..dfa6e31 100644
--- a/tools/perf/arch/s390/Makefile
+++ b/tools/perf/arch/s390/Makefile
@@ -10,15 +10,19 @@ PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
 
 out:= $(OUTPUT)arch/s390/include/generated/asm
 header := $(out)/syscalls_64.c
-sysdef := $(srctree)/tools/arch/s390/include/uapi/asm/unistd.h
-sysprf := $(srctree)/tools/perf/arch/s390/entry/syscalls/
+syskrn := $(srctree)/arch/s390/kernel/syscalls/syscall.tbl
+sysprf := $(srctree)/tools/perf/arch/s390/entry/syscalls
+sysdef := $(sysprf)/syscall.tbl
 systbl := $(sysprf)/mksyscalltbl
 
 # Create output directory if not already present
 _dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
 
 $(header): $(sysdef) $(systbl)
-   $(Q)$(SHELL) '$(systbl)' '$(CC)' $(sysdef) > $@
+   @(test -d ../../kernel -a -d ../../tools -a -d ../perf && ( \
+(diff -B $(sysdef) $(syskrn) >/dev/null) \
+|| echo "Warning: Kernel ABI header at '$(sysdef)' differs from latest 
version at '$(syskrn)'" >&2 )) || true
+   $(Q)$(SHELL) '$(systbl)' $(sysdef) > $@
 
 clean::
$(call QUIET_CLEAN, s390) $(RM) $(header)
diff --git a/tools/perf/arch/s390/entry/syscalls/mksyscalltbl 
b/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
index 7fa0d0a..72ecbb6 100755
--- a/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
+++ b/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
@@ -3,25 +3,23 @@
 #
 # Generate system call table for perf
 #
-#
-# Copyright IBM Corp. 2017
+# Copyright IBM Corp. 2017, 2018
 # Author(s):  Hendrik Brueckner 
 #
 
-gcc=$1
-input=$2
+SYSCALL_TBL=$1
 
-if ! test -r $input; then
+if ! test -r $SYSCALL_TBL; then
echo "Could not read input file" >&2
exit 1
 fi
 
 create_table()
 {
-   local max_nr
+   local max_nr nr abi sc discard
 
echo 'static const char *syscalltbl_s390_64[] = {'
-   while read sc nr; do
+   while read nr abi sc discard; do
printf '\t[%d] = "%s",\n' $nr $sc
max_nr=$nr
done
@@ -29,8 +27,6 @@ create_table()
echo "#define SYSCALLTBL_S390_64_MAX_ID $max_nr"
 }
 
-
-$gcc -m64 -E -dM -x c  $input \
-   |sed -ne 's/^#define __NR_//p' \
-   |sort -t' ' -k2 -nu\
+grep -E "^[[:digit:]]+[[:space:]]+(common|64)" $SYSCALL_TBL\
+   |sort -k1 -n\
|create_table

[tip:perf/urgent] perf s390: Rework system call table creation by using syscall.tbl

2018-02-16 Thread tip-bot for Hendrik Brueckner 
Commit-ID:  690d22d9d4423b4522fb44a71145403eef2df834
Gitweb: https://git.kernel.org/tip/690d22d9d4423b4522fb44a71145403eef2df834
Author: Hendrik Brueckner 
AuthorDate: Thu, 8 Feb 2018 12:47:50 +0100
Committer:  Arnaldo Carvalho de Melo 
CommitDate: Thu, 15 Feb 2018 10:06:08 -0300

perf s390: Rework system call table creation by using syscall.tbl

Recently, s390 uses a syscall.tbl input file to generate its system call
table and unistd uapi header files.  Hence, update mksyscalltbl to use
it as input to create the system table for perf.

Signed-off-by: Hendrik Brueckner 
Cc: Jiri Olsa 
Cc: Michael Petlan 
Cc: Thomas Richter 
Cc: linux-s...@vger.kernel.org
LPU-Reference: 1518090470-2899-4-git-send-email-brueck...@linux.vnet.ibm.com
Link: https://lkml.kernel.org/n/tip-bdyhllhsq1zgxv2qx4m37...@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo 
---
 tools/perf/arch/s390/Makefile| 10 +++---
 tools/perf/arch/s390/entry/syscalls/mksyscalltbl | 18 +++---
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/tools/perf/arch/s390/Makefile b/tools/perf/arch/s390/Makefile
index 48228de..dfa6e31 100644
--- a/tools/perf/arch/s390/Makefile
+++ b/tools/perf/arch/s390/Makefile
@@ -10,15 +10,19 @@ PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
 
 out:= $(OUTPUT)arch/s390/include/generated/asm
 header := $(out)/syscalls_64.c
-sysdef := $(srctree)/tools/arch/s390/include/uapi/asm/unistd.h
-sysprf := $(srctree)/tools/perf/arch/s390/entry/syscalls/
+syskrn := $(srctree)/arch/s390/kernel/syscalls/syscall.tbl
+sysprf := $(srctree)/tools/perf/arch/s390/entry/syscalls
+sysdef := $(sysprf)/syscall.tbl
 systbl := $(sysprf)/mksyscalltbl
 
 # Create output directory if not already present
 _dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
 
 $(header): $(sysdef) $(systbl)
-   $(Q)$(SHELL) '$(systbl)' '$(CC)' $(sysdef) > $@
+   @(test -d ../../kernel -a -d ../../tools -a -d ../perf && ( \
+(diff -B $(sysdef) $(syskrn) >/dev/null) \
+|| echo "Warning: Kernel ABI header at '$(sysdef)' differs from latest 
version at '$(syskrn)'" >&2 )) || true
+   $(Q)$(SHELL) '$(systbl)' $(sysdef) > $@
 
 clean::
$(call QUIET_CLEAN, s390) $(RM) $(header)
diff --git a/tools/perf/arch/s390/entry/syscalls/mksyscalltbl 
b/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
index 7fa0d0a..72ecbb6 100755
--- a/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
+++ b/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
@@ -3,25 +3,23 @@
 #
 # Generate system call table for perf
 #
-#
-# Copyright IBM Corp. 2017
+# Copyright IBM Corp. 2017, 2018
 # Author(s):  Hendrik Brueckner 
 #
 
-gcc=$1
-input=$2
+SYSCALL_TBL=$1
 
-if ! test -r $input; then
+if ! test -r $SYSCALL_TBL; then
echo "Could not read input file" >&2
exit 1
 fi
 
 create_table()
 {
-   local max_nr
+   local max_nr nr abi sc discard
 
echo 'static const char *syscalltbl_s390_64[] = {'
-   while read sc nr; do
+   while read nr abi sc discard; do
printf '\t[%d] = "%s",\n' $nr $sc
max_nr=$nr
done
@@ -29,8 +27,6 @@ create_table()
echo "#define SYSCALLTBL_S390_64_MAX_ID $max_nr"
 }
 
-
-$gcc -m64 -E -dM -x c  $input \
-   |sed -ne 's/^#define __NR_//p' \
-   |sort -t' ' -k2 -nu\
+grep -E "^[[:digit:]]+[[:space:]]+(common|64)" $SYSCALL_TBL\
+   |sort -k1 -n\
|create_table