[PATCH v1 0/4] xtensa: system call table generation support

[PATCH v1 0/4] xtensa: system call table generation support

[Firoz Khan]

The purpose of this patch series is, we can easily
add/modify/delete system call table support by cha-
nging entry in syscall.tbl file instead of manually
changing many files. The other goal is to unify the 
system call table generation support implementation 
across all the architectures. 

The system call tables are in different format in 
all architecture. It will be difficult to manually
add, modify or delete the system calls in the resp-
ective files manually. To make it easy by keeping a 
script and which'll generate uapi header file and 
syscall table file.

syscall.tbl contains the list of available system 
calls along with system call number and correspond-
ing entry point. Add a new system call in this arch-
itecture will be possible by adding new entry in the
syscall.tbl file.

Adding a new table entry consisting of:
        - System call number.
        - ABI.
        - System call name.
        - Entry point name.

ARM, s390 and x86 architecuture does exist the sim-
ilar support. I leverage their implementation to come
up with a generic solution.

I have done the same support for work for alpha, ia64,
m68k, microblaze, mips, parisc, powerpc, sh and sparc.
Below mentioned git repository contains more details 
about the workflow.

 https://github.com/frzkhn/system_call_table_generator/

Finally, this is the ground work to solve the Y2038
issue. We need to add two dozen of system calls to solve
Y2038 issue. So this patch series will help to add new 
system calls easily by adding new entry in the syscall.tbl.

Firoz Khan (4):
  xtensa: move SYS_XTENSA_* macros to non uapi header
  xtensa: add __NR_syscalls along with __NR_syscall_count
  xtensa: add system call table generation support
  xtensa: generate uapi header and syscall table header files

 arch/xtensa/Makefile                      |   3 +
 arch/xtensa/include/asm/Kbuild            |   1 +
 arch/xtensa/include/asm/unistd.h          |  20 +
 arch/xtensa/include/uapi/asm/Kbuild       |   1 +
 arch/xtensa/include/uapi/asm/unistd.h     | 798 +-----------------------------
 arch/xtensa/kernel/syscall.c              |   5 +-
 arch/xtensa/kernel/syscalls/Makefile      |  38 ++
 arch/xtensa/kernel/syscalls/syscall.tbl   | 374 ++++++++++++++
 arch/xtensa/kernel/syscalls/syscallhdr.sh |  36 ++
 arch/xtensa/kernel/syscalls/syscalltbl.sh |  32 ++
 10 files changed, 510 insertions(+), 798 deletions(-)
 create mode 100644 arch/xtensa/kernel/syscalls/Makefile
 create mode 100644 arch/xtensa/kernel/syscalls/syscall.tbl
 create mode 100644 arch/xtensa/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/xtensa/kernel/syscalls/syscalltbl.sh

-- 
1.9.1

[PATCH v1 1/4] xtensa: move SYS_XTENSA_* macros to non uapi header

[Firoz Khan]

All the SYS_XTENSA_* macros used by sysxtensa syscall
handlers are resides in the uapi header file move to
non uapi header asm/unistd.h as it is not used by any
user space applications.

It is correct to keep these macros in non uapi header
file asm/unistd.h while uapi/asm/unistd.h must hold
information only useful for user space applications.

One of the patch in this patch series will generate
uapi header file. The information which directly used
by the user space application must be present in uapi
file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/xtensa/include/asm/unistd.h      | 18 ++++++++++++++++++
 arch/xtensa/include/uapi/asm/unistd.h | 18 ------------------
 2 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h
index ed66db3..c73eca83 100644
--- a/arch/xtensa/include/asm/unistd.h
+++ b/arch/xtensa/include/asm/unistd.h
@@ -22,4 +22,22 @@
 #define __IGNORE_vfork				/* use clone */
 #define __IGNORE_fadvise64			/* use fadvise64_64 */
 
+/*
+ * sysxtensa syscall handler
+ *
+ * int sysxtensa (SYS_XTENSA_ATOMIC_SET,     ptr, val,    unused);
+ * int sysxtensa (SYS_XTENSA_ATOMIC_ADD,     ptr, val,    unused);
+ * int sysxtensa (SYS_XTENSA_ATOMIC_EXG_ADD, ptr, val,    unused);
+ * int sysxtensa (SYS_XTENSA_ATOMIC_CMP_SWP, ptr, oldval, newval);
+ *        a2            a6                   a3    a4      a5
+ */
+
+#define SYS_XTENSA_RESERVED               0     /* don't use this */
+#define SYS_XTENSA_ATOMIC_SET             1     /* set variable */
+#define SYS_XTENSA_ATOMIC_EXG_ADD         2     /* exchange memory and add */
+#define SYS_XTENSA_ATOMIC_ADD             3     /* add to memory */
+#define SYS_XTENSA_ATOMIC_CMP_SWP         4     /* compare and swap */
+
+#define SYS_XTENSA_COUNT                  5     /* count */
+
 #endif /* _XTENSA_UNISTD_H */
diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h
index bc3f62d..c8ac79a 100644
--- a/arch/xtensa/include/uapi/asm/unistd.h
+++ b/arch/xtensa/include/uapi/asm/unistd.h
@@ -780,24 +780,6 @@
 
 #define __NR_syscall_count			352
 
-/*
- * sysxtensa syscall handler
- *
- * int sysxtensa (SYS_XTENSA_ATOMIC_SET,     ptr, val,    unused);
- * int sysxtensa (SYS_XTENSA_ATOMIC_ADD,     ptr, val,    unused);
- * int sysxtensa (SYS_XTENSA_ATOMIC_EXG_ADD, ptr, val,    unused);
- * int sysxtensa (SYS_XTENSA_ATOMIC_CMP_SWP, ptr, oldval, newval);
- *        a2            a6                   a3    a4      a5
- */
-
-#define SYS_XTENSA_RESERVED               0     /* don't use this */
-#define SYS_XTENSA_ATOMIC_SET             1     /* set variable */
-#define SYS_XTENSA_ATOMIC_EXG_ADD         2     /* exchange memory and add */
-#define SYS_XTENSA_ATOMIC_ADD             3     /* add to memory */
-#define SYS_XTENSA_ATOMIC_CMP_SWP         4     /* compare and swap */
-
-#define SYS_XTENSA_COUNT                  5     /* count */
-
 #undef __SYSCALL
 
 #endif /* _UAPI_XTENSA_UNISTD_H */
-- 
1.9.1

[PATCH v1 2/4] xtensa: add __NR_syscalls along with __NR_syscall_count

[Firoz Khan]

__NR_syscall_count macro holds the number of system call
exist in xtensa architecture. We have to change the value
of __NR_syscall_count, if we add or delete a system call.

One of the patch in this patch series has a script which
will generate a uapi header based on syscall.tbl file.
The syscall.tbl file contains the total number of system
calls information. So we have two option to update __NR-
_syscall_count value.

1. Update __NR_syscall_count in asm/unistd.h manually by
   counting the no.of system calls. No need to update __NR-
   _syscall_count until we either add a new system call or
   delete existing system call.

2. We can keep this feature it above mentioned script,
   that will count the number of syscalls and keep it in
   a generated file. In this case we don't need to expli-
   citly update __NR_syscall_count in asm/unistd.h file.

The 2nd option will be the recommended one. For that, I
added the __NR_syscalls macro in uapi/asm/unistd.h along
with __NR_syscall_count asm/unistd.h. The macro __NR_sys-
calls also added for making the name convention same across
all architecture. While __NR_syscalls isn't strictly part
of the uapi, having it as part of the generated header to
simplifies the implementation. We also need to enclose
this macro with #ifdef __KERNEL__ to avoid side effects.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/xtensa/include/asm/unistd.h      | 2 ++
 arch/xtensa/include/uapi/asm/unistd.h | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h
index c73eca83..b844081 100644
--- a/arch/xtensa/include/asm/unistd.h
+++ b/arch/xtensa/include/asm/unistd.h
@@ -5,6 +5,8 @@
 #define __ARCH_WANT_SYS_CLONE
 #include <uapi/asm/unistd.h>
 
+#define __NR_syscall_count 	__NR_syscalls
+
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_UTIME
 #define __ARCH_WANT_SYS_LLSEEK
diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h
index c8ac79a..fa26aa2 100644
--- a/arch/xtensa/include/uapi/asm/unistd.h
+++ b/arch/xtensa/include/uapi/asm/unistd.h
@@ -778,7 +778,9 @@
 #define __NR_statx				351
 __SYSCALL(351, sys_statx, 5)
 
-#define __NR_syscall_count			352
+#ifdef __KERNEL__
+#define __NR_syscalls				352
+#endif
 
 #undef __SYSCALL
 
-- 
1.9.1

[PATCH v1 3/4] xtensa: add system call table generation support

[Firoz Khan]

The system call tables are in different format in all
architecture and it will be difficult to manually add,
modify or delete the syscall table entries in the res-
pective files. To make it easy by keeping a script and
which will generate the uapi header and syscall table
file. This change will also help to unify the implemen-
tation across all architectures.

The system call table generation script is added in
kernel/syscalls directory which contain the scripts to
generate both uapi header file and system call table
files. The syscall.tbl will be input for the scripts.

syscall.tbl contains the list of available system calls
along with system call number and corresponding entry
point. Add a new system call in this architecture will
be possible by adding new entry in the syscall.tbl file.

Adding a new table entry consisting of:
  	- System call number.
	- ABI.
	- System call name.
	- Entry point name.

syscallhdr.sh and syscalltbl.sh will generate uapi header
unistd_32.h and syscall_table.h files respectively. Both
.sh files will parse the content syscall.tbl to generate
the header and table files. unistd_32.h will be included
by uapi/asm/unistd.h and syscall_table.h is included by
kernel/syscall.c - the real system call table.

ARM, s390 and x86 architecuture does have similar support.
I leverage their implementation to come up with a generic
solution.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/xtensa/kernel/syscalls/Makefile      |  38 +++
 arch/xtensa/kernel/syscalls/syscall.tbl   | 374 ++++++++++++++++++++++++++++++
 arch/xtensa/kernel/syscalls/syscallhdr.sh |  36 +++
 arch/xtensa/kernel/syscalls/syscalltbl.sh |  32 +++
 4 files changed, 480 insertions(+)
 create mode 100644 arch/xtensa/kernel/syscalls/Makefile
 create mode 100644 arch/xtensa/kernel/syscalls/syscall.tbl
 create mode 100644 arch/xtensa/kernel/syscalls/syscallhdr.sh
 create mode 100644 arch/xtensa/kernel/syscalls/syscalltbl.sh

diff --git a/arch/xtensa/kernel/syscalls/Makefile b/arch/xtensa/kernel/syscalls/Makefile
new file mode 100644
index 0000000..659faef
--- /dev/null
+++ b/arch/xtensa/kernel/syscalls/Makefile
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0
+kapi := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)')	\
+	  $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+
+syscall := $(srctree)/$(src)/syscall.tbl
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'	\
+		   '$(syshdr_abis_$(basetarget))'		\
+		   '$(syshdr_pfx_$(basetarget))'		\
+		   '$(syshdr_offset_$(basetarget))'
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'	\
+		   '$(systbl_abis_$(basetarget))'		\
+		   '$(systbl_abi_$(basetarget))'		\
+		   '$(systbl_offset_$(basetarget))'
+
+$(uapi)/unistd_32.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+$(kapi)/syscall_table.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+uapisyshdr-y		+= unistd_32.h
+kapisyshdr-y		+= syscall_table.h
+
+targets	+= $(uapisyshdr-y) $(kapisyshdr-y)
+
+PHONY += all
+all: $(addprefix $(uapi)/,$(uapisyshdr-y))
+all: $(addprefix $(kapi)/,$(kapisyshdr-y))
+	@:
diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
new file mode 100644
index 0000000..69cf91b
--- /dev/null
+++ b/arch/xtensa/kernel/syscalls/syscall.tbl
@@ -0,0 +1,374 @@
+# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
+#
+# system call numbers and entry vectors for xtensa
+#
+# The format is:
+# <number> <abi> <name> <entry point>
+#
+# The <abi> is always "common" for this file
+#
+0	common	spill				sys_ni_syscall
+1	common	xtensa				sys_ni_syscall
+2	common	available4			sys_ni_syscall
+3	common	available5			sys_ni_syscall
+4	common	available6			sys_ni_syscall
+5	common	available7			sys_ni_syscall
+6	common	available8			sys_ni_syscall
+7	common	available9			sys_ni_syscall
+# File Operations
+8	common	open				sys_open
+9	common	close				sys_close
+10	common	dup				sys_dup
+11	common	dup2				sys_dup2
+12	common	read				sys_read
+13	common	write				sys_write
+14	common	select				sys_select
+15	common	lseek				sys_lseek
+16	common	poll				sys_poll
+17	common	_llseek				sys_llseek
+18	common	epoll_wait			sys_epoll_wait
+19	common	epoll_ctl			sys_epoll_ctl
+20	common	epoll_create			sys_epoll_create
+21	common	creat				sys_creat
+22	common	truncate			sys_truncate
+23	common	ftruncate			sys_ftruncate
+24	common	readv				sys_readv
+25	common	writev				sys_writev
+26	common	fsync				sys_fsync
+27	common	fdatasync			sys_fdatasync
+28	common	truncate64			sys_truncate64
+29	common	ftruncate64			sys_ftruncate64
+30	common	pread64				sys_pread64
+31	common	pwrite64			sys_pwrite64
+32	common	link				sys_link
+33	common	rename				sys_rename
+34	common	symlink				sys_symlink
+35	common	readlink			sys_readlink
+36	common	mknod				sys_mknod
+37	common	pipe				sys_pipe
+38	common	unlink				sys_unlink
+39	common	rmdir				sys_rmdir
+40	common	mkdir				sys_mkdir
+41	common	chdir				sys_chdir
+42	common	fchdir				sys_fchdir
+43	common	getcwd				sys_getcwd
+44	common	chmod				sys_chmod
+45	common	chown				sys_chown
+46	common	stat				sys_newstat
+47	common	stat64				sys_stat64
+48	common	lchown				sys_lchown
+49	common	lstat				sys_newlstat
+50	common	lstat64				sys_lstat64
+51	common	available51			sys_ni_syscall
+52	common	fchmod				sys_fchmod
+53	common	fchown				sys_fchown
+54	common	fstat				sys_newfstat
+55	common	fstat64				sys_fstat64
+56	common	flock				sys_flock
+57	common	access				sys_access
+58	common	umask				sys_umask
+59	common	getdents			sys_getdents
+60	common	getdents64			sys_getdents64
+61	common	fcntl64				sys_fcntl64
+62	common	fallocate			sys_fallocate
+63	common	fadvise64_64			xtensa_fadvise64_64
+64	common	utime				sys_utime
+65	common	utimes				sys_utimes
+66	common	ioctl				sys_ioctl
+67	common	fcntl				sys_fcntl
+68	common	setxattr			sys_setxattr
+69	common	getxattr			sys_getxattr
+70	common	listxattr			sys_listxattr
+71	common	removexattr			sys_removexattr
+72	common	lsetxattr			sys_lsetxattr
+73	common	lgetxattr			sys_lgetxattr
+74	common	llistxattr			sys_llistxattr
+75	common	lremovexattr			sys_lremovexattr
+76	common	fsetxattr			sys_fsetxattr
+77	common	fgetxattr			sys_fgetxattr
+78	common	flistxattr			sys_flistxattr
+79	common	fremovexattr			sys_fremovexattr
+# File Map / Shared Memory Operations
+80	common	mmap2				sys_mmap_pgoff
+81	common	munmap				sys_munmap
+82	common	mprotect			sys_mprotect
+83	common	brk				sys_brk
+84	common	mlock				sys_mlock
+85	common	munlock				sys_munlock
+86	common	mlockall			sys_mlockall
+87	common	munlockall			sys_munlockall
+88	common	mremap				sys_mremap
+89	common	msync				sys_msync
+90	common	mincore				sys_mincore
+91	common	madvise				sys_madvise
+92	common	shmget				sys_shmget
+93	common	shmat				xtensa_shmat
+94	common	shmctl				sys_shmctl
+95	common	shmdt				sys_shmdt
+# Socket Operations
+96	common	socket				sys_socket
+97	common	setsockopt			sys_setsockopt
+98	common	getsockopt			sys_getsockopt
+99	common	shutdown			sys_shutdown
+100	common	bind				sys_bind
+101	common	connect				sys_connect
+102	common	listen				sys_listen
+103	common	accept				sys_accept
+104	common	getsockname			sys_getsockname
+105	common	getpeername			sys_getpeername
+106	common	sendmsg				sys_sendmsg
+107	common	recvmsg				sys_recvmsg
+108	common	send				sys_send
+109	common	recv				sys_recv
+110	common	sendto				sys_sendto
+111	common	recvfrom			sys_recvfrom
+112	common	socketpair			sys_socketpair
+113	common	sendfile			sys_sendfile
+114	common	sendfile64			sys_sendfile64
+115	common	sendmmsg			sys_sendmmsg
+# Process Operations
+116	common	clone				sys_clone
+117	common	execve				sys_execve
+118	common	exit				sys_exit
+119	common	exit_group			sys_exit_group
+120	common	getpid				sys_getpid
+121	common	wait4				sys_wait4
+122	common	waitid				sys_waitid
+123	common	kill				sys_kill
+124	common	tkill				sys_tkill
+125	common	tgkill				sys_tgkill
+126	common	set_tid_address			sys_set_tid_address
+127	common	gettid				sys_gettid
+128	common	setsid				sys_setsid
+129	common	getsid				sys_getsid
+130	common	prctl				sys_prctl
+131	common	personality			sys_personality
+132	common	getpriority			sys_getpriority
+133	common	setpriority			sys_setpriority
+134	common	setitimer			sys_setitimer
+135	common	getitimer			sys_getitimer
+136	common	setuid				sys_setuid
+137	common	getuid				sys_getuid
+138	common	setgid				sys_setgid
+139	common	getgid				sys_getgid
+140	common	geteuid				sys_geteuid
+141	common	getegid				sys_getegid
+142	common	setreuid			sys_setreuid
+143	common	setregid			sys_setregid
+144	common	setresuid			sys_setresuid
+145	common	getresuid			sys_getresuid
+146	common	setresgid			sys_setresgid
+147	common	getresgid			sys_getresgid
+148	common	setpgid				sys_setpgid
+149	common	getpgid				sys_getpgid
+150	common	getppid				sys_getppid
+151	common	getpgrp				sys_getpgrp
+# 152 was set_thread_area
+152	common	reserved152			sys_ni_syscall
+# 153 was get_thread_area
+153	common	reserved153			sys_ni_syscall
+154	common	times				sys_times
+155	common	acct				sys_acct
+156	common	sched_setaffinity		sys_sched_setaffinity
+157	common	sched_getaffinity		sys_sched_getaffinity
+158	common	capget				sys_capget
+159	common	capset				sys_capset
+160	common	ptrace				sys_ptrace
+161	common	semtimedop			sys_semtimedop
+162	common	semget				sys_semget
+163	common	semop				sys_semop
+164	common	semctl				sys_semctl
+165	common	available165			sys_ni_syscall
+166	common	msgget				sys_msgget
+167	common	msgsnd				sys_msgsnd
+168	common	msgrcv				sys_msgrcv
+169	common	msgctl				sys_msgctl
+170	common	available170			sys_ni_syscall
+# File System
+171	common	umount2				sys_umount
+172	common	mount				sys_mount
+173	common	swapon				sys_swapon
+174	common	chroot				sys_chroot
+175	common	pivot_root			sys_pivot_root
+176	common	umount				sys_oldumount
+177	common	swapoff				sys_swapoff
+178	common	sync				sys_sync
+179	common	syncfs				sys_syncfs
+180	common	setfsuid			sys_setfsuid
+181	common	setfsgid			sys_setfsgid
+182	common	sysfs				sys_sysfs
+183	common	ustat				sys_ustat
+184	common	statfs				sys_statfs
+185	common	fstatfs				sys_fstatfs
+186	common	statfs64			sys_statfs64
+187	common	fstatfs64			sys_fstatfs64
+# System
+188	common	setrlimit			sys_setrlimit
+189	common	getrlimit			sys_getrlimit
+190	common	getrusage			sys_getrusage
+191	common	futex				sys_futex
+192	common	gettimeofday			sys_gettimeofday
+193	common	settimeofday			sys_settimeofday
+194	common	adjtimex			sys_adjtimex
+195	common	nanosleep			sys_nanosleep
+196	common	getgroups			sys_getgroups
+197	common	setgroups			sys_setgroups
+198	common	sethostname			sys_sethostname
+199	common	setdomainname			sys_setdomainname
+200	common	syslog				sys_syslog
+201	common	vhangup				sys_vhangup
+202	common	uselib				sys_uselib
+203	common	reboot				sys_reboot
+204	common	quotactl			sys_quotactl
+# 205 was old nfsservctl
+205	common	nfsservctl			sys_ni_syscall
+206	common	_sysctl				sys_sysctl
+207	common	bdflush				sys_bdflush
+208	common	uname				sys_newuname
+209	common	sysinfo				sys_sysinfo
+210	common	init_module			sys_init_module
+211	common	delete_module			sys_delete_module
+212	common	sched_setparam			sys_sched_setparam
+213	common	sched_getparam			sys_sched_getparam
+214	common	sched_setscheduler		sys_sched_setscheduler
+215	common	sched_getscheduler		sys_sched_getscheduler
+216	common	sched_get_priority_max		sys_sched_get_priority_max
+217	common	sched_get_priority_min		sys_sched_get_priority_min
+218	common	sched_rr_get_interval		sys_sched_rr_get_interval
+219	common	sched_yield			sys_sched_yield
+222	common	available222			sys_ni_syscall
+# Signal Handling
+223	common	restart_syscall			sys_restart_syscall
+224	common	sigaltstack			sys_sigaltstack
+225	common	rt_sigreturn			xtensa_rt_sigreturn
+226	common	rt_sigaction			sys_rt_sigaction
+227	common	rt_sigprocmask			sys_rt_sigprocmask
+228	common	rt_sigpending			sys_rt_sigpending
+229	common	rt_sigtimedwait			sys_rt_sigtimedwait
+230	common	rt_sigqueueinfo			sys_rt_sigqueueinfo
+231	common	rt_sigsuspend			sys_rt_sigsuspend
+# Message
+232	common	mq_open				sys_mq_open
+233	common	mq_unlink			sys_mq_unlink
+234	common	mq_timedsend			sys_mq_timedsend
+235	common	mq_timedreceive			sys_mq_timedreceive
+236	common	mq_notify			sys_mq_notify
+237	common	mq_getsetattr			sys_mq_getsetattr
+238	common	available238			sys_ni_syscall
+239	common	io_setup			sys_io_setup
+# IO
+240	common	io_destroy			sys_io_destroy
+241	common	io_submit			sys_io_submit
+242	common	io_getevents			sys_io_getevents
+243	common	io_cancel			sys_io_cancel
+244	common	clock_settime			sys_clock_settime
+245	common	clock_gettime			sys_clock_gettime
+246	common	clock_getres			sys_clock_getres
+247	common	clock_nanosleep			sys_clock_nanosleep
+# Timer
+248	common	timer_create			sys_timer_create
+249	common	timer_delete			sys_timer_delete
+250	common	timer_settime			sys_timer_settime
+251	common	timer_gettime			sys_timer_gettime
+252	common	timer_getoverrun		sys_timer_getoverrun
+# System
+253	common	reserved253			sys_ni_syscall
+254	common	lookup_dcookie			sys_lookup_dcookie
+255	common	available255			sys_ni_syscall
+256	common	add_key				sys_add_key
+257	common	request_key			sys_request_key
+258	common	keyctl				sys_keyctl
+259	common	available259			sys_ni_syscall
+260	common	readahead			sys_readahead
+261	common	remap_file_pages		sys_remap_file_pages
+262	common	migrate_pages			sys_migrate_pages
+263	common	mbind				sys_mbind
+264	common	get_mempolicy			sys_get_mempolicy
+265	common	set_mempolicy			sys_set_mempolicy
+266	common	unshare				sys_unshare
+267	common	move_pages			sys_move_pages
+268	common	splice				sys_splice
+269	common	tee				sys_tee
+270	common	vmsplice			sys_vmsplice
+271	common	available271			sys_ni_syscall
+272	common	pselect6			sys_pselect6
+273	common	ppoll				sys_ppoll
+274	common	epoll_pwait			sys_epoll_pwait
+275	common	epoll_create1			sys_epoll_create1
+276	common	inotify_init			sys_inotify_init
+277	common	inotify_add_watch		sys_inotify_add_watch
+278	common	inotify_rm_watch		sys_inotify_rm_watch
+279	common	inotify_init1			sys_inotify_init1
+280	common	getcpu				sys_getcpu
+281	common	kexec_load			sys_ni_syscall
+282	common	ioprio_set			sys_ioprio_set
+283	common	ioprio_get			sys_ioprio_get
+284	common	set_robust_list			sys_set_robust_list
+285	common	get_robust_list			sys_get_robust_list
+286	common	available286			sys_ni_syscall
+287	common	available287			sys_ni_syscall
+# Relative File Operations
+288	common	openat				sys_openat
+289	common	mkdirat				sys_mkdirat
+290	common	mknodat				sys_mknodat
+291	common	unlinkat			sys_unlinkat
+292	common	renameat			sys_renameat
+293	common	linkat				sys_linkat
+294	common	symlinkat			sys_symlinkat
+295	common	readlinkat			sys_readlinkat
+296	common	utimensat			sys_utimensat
+297	common	fchownat			sys_fchownat
+298	common	futimesat			sys_futimesat
+299	common	fstatat64			sys_fstatat64
+300	common	fchmodat			sys_fchmodat
+301	common	faccessat			sys_faccessat
+302	common	available302			sys_ni_syscall
+303	common	available303			sys_ni_syscall
+304	common	signalfd			sys_signalfd
+# 305 was timerfd
+306	common	eventfd				sys_eventfd
+307	common	recvmmsg			sys_recvmmsg
+308	common	setns				sys_setns
+309	common	signalfd4			sys_signalfd4
+310	common	dup3				sys_dup3
+311	common	pipe2				sys_pipe2
+312	common	timerfd_create			sys_timerfd_create
+313	common	timerfd_settime			sys_timerfd_settime
+314	common	timerfd_gettime			sys_timerfd_gettime
+315	common	available315			sys_ni_syscall
+316	common	eventfd2			sys_eventfd2
+317	common	preadv				sys_preadv
+318	common	pwritev				sys_pwritev
+319	common	available319			sys_ni_syscall
+320	common	fanotify_init			sys_fanotify_init
+321	common	fanotify_mark			sys_fanotify_mark
+322	common	process_vm_readv		sys_process_vm_readv
+323	common	process_vm_writev		sys_process_vm_writev
+324	common	name_to_handle_at		sys_name_to_handle_at
+325	common	open_by_handle_at		sys_open_by_handle_at
+326	common	sync_file_range2		sys_sync_file_range2
+327	common	perf_event_open			sys_perf_event_open
+328	common	rt_tgsigqueueinfo		sys_rt_tgsigqueueinfo
+329	common	clock_adjtime			sys_clock_adjtime
+330	common	prlimit64			sys_prlimit64
+331	common	kcmp				sys_kcmp
+332	common	finit_module			sys_finit_module
+333	common	accept4				sys_accept4
+334	common	sched_setattr			sys_sched_setattr
+335	common	sched_getattr			sys_sched_getattr
+336	common	renameat2			sys_renameat2
+337	common	seccomp				sys_seccomp
+338	common	getrandom			sys_getrandom
+339	common	memfd_create			sys_memfd_create
+340	common	bpf				sys_bpf
+341	common	execveat			sys_execveat
+342	common	userfaultfd			sys_userfaultfd
+343	common	membarrier			sys_membarrier
+344	common	mlock2				sys_mlock2
+345	common	copy_file_range			sys_copy_file_range
+346	common	preadv2				sys_preadv2
+347	common	pwritev2			sys_pwritev2
+348	common	pkey_mprotect			sys_pkey_mprotect
+349	common	pkey_alloc			sys_pkey_alloc
+350	common	pkey_free			sys_pkey_free
+351	common	statx				sys_statx
diff --git a/arch/xtensa/kernel/syscalls/syscallhdr.sh b/arch/xtensa/kernel/syscalls/syscallhdr.sh
new file mode 100644
index 0000000..d37db64
--- /dev/null
+++ b/arch/xtensa/kernel/syscalls/syscallhdr.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_XTENSA_`basename "$out" | sed \
+	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+	-e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+	printf "#ifndef %s\n" "${fileguard}"
+	printf "#define %s\n" "${fileguard}"
+	printf "\n"
+
+	nxt=0
+	while read nr abi name entry ; do
+		if [ -z "$offset" ]; then
+			printf "#define __NR_%s%s\t%s\n" \
+				"${prefix}" "${name}" "${nr}"
+		else
+			printf "#define __NR_%s%s\t(%s + %s)\n" \
+				"${prefix}" "${name}" "${offset}" "${nr}"
+		fi
+		nxt=$((nr+1))
+	done
+
+	printf "\n"
+	printf "#ifdef __KERNEL__\n"
+	printf "#define __NR_syscalls\t%s\n" "${nxt}"
+	printf "#endif\n"
+	printf "\n"
+	printf "#endif /* %s */" "${fileguard}"
+) > "$out"
diff --git a/arch/xtensa/kernel/syscalls/syscalltbl.sh b/arch/xtensa/kernel/syscalls/syscalltbl.sh
new file mode 100644
index 0000000..85d78d9
--- /dev/null
+++ b/arch/xtensa/kernel/syscalls/syscalltbl.sh
@@ -0,0 +1,32 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+my_abi="$4"
+offset="$5"
+
+emit() {
+	t_nxt="$1"
+	t_nr="$2"
+	t_entry="$3"
+
+	while [ $t_nxt -lt $t_nr ]; do
+		printf "__SYSCALL(%s, sys_ni_syscall, )\n" "${t_nxt}"
+		t_nxt=$((t_nxt+1))
+	done
+	printf "__SYSCALL(%s, %s, )\n" "${t_nxt}" "${t_entry}"
+}
+
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+	nxt=0
+	if [ -z "$offset" ]; then
+		offset=0
+	fi
+
+	while read nr abi name entry ; do
+		emit $((nxt+offset)) $((nr+offset)) $entry
+		nxt=$((nr+1))
+	done
+) > "$out"
-- 
1.9.1

[PATCH v1 4/4] xtensa: generate uapi header and syscall table header files

[Firoz Khan]

System call table generation script must be run to gener-
ate unistd_32.h and syscall_table.h files. This patch will
have changes which will invokes the script.

This patch will generate unistd_32.h and syscall_table.h
files by the syscall table generation script invoked by
xtensa/Makefile and the generated files against the removed
files must be identical.

The generated uapi header file will be included in uapi/-
asm/unistd.h and generated system call table header file
will be included by kernel/syscall.c file.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/xtensa/Makefile                  |   3 +
 arch/xtensa/include/asm/Kbuild        |   1 +
 arch/xtensa/include/uapi/asm/Kbuild   |   1 +
 arch/xtensa/include/uapi/asm/unistd.h | 782 +---------------------------------
 arch/xtensa/kernel/syscall.c          |   5 +-
 5 files changed, 10 insertions(+), 782 deletions(-)

diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile
index d67e30fa..1e7b179 100644
--- a/arch/xtensa/Makefile
+++ b/arch/xtensa/Makefile
@@ -99,6 +99,9 @@ all Image zImage uImage: vmlinux
 dtbs: scripts
 	$(Q)$(MAKE) $(build)=$(boot)/dts
 
+archheaders:
+	$(Q)$(MAKE) $(build)=arch/xtensa/kernel/syscalls all
+
 define archhelp
   @echo '* Image       - Kernel ELF image with reset vector'
   @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index 82c75643..b35d2e6 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -28,3 +28,4 @@ generic-y += topology.h
 generic-y += trace_clock.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += syscall_table.h
diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
index 837d4dd..f826d52 100644
--- a/arch/xtensa/include/uapi/asm/Kbuild
+++ b/arch/xtensa/include/uapi/asm/Kbuild
@@ -11,3 +11,4 @@ generic-y += resource.h
 generic-y += siginfo.h
 generic-y += statfs.h
 generic-y += termios.h
+generic-y += unistd_32.h
diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h
index fa26aa2..1870b44 100644
--- a/arch/xtensa/include/uapi/asm/unistd.h
+++ b/arch/xtensa/include/uapi/asm/unistd.h
@@ -1,787 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#if !defined(_UAPI_XTENSA_UNISTD_H) || defined(__SYSCALL)
+#ifndef _UAPI_XTENSA_UNISTD_H
 #define _UAPI_XTENSA_UNISTD_H
 
-#ifndef __SYSCALL
-# define __SYSCALL(nr,func,nargs)
-#endif
-
-#define __NR_spill				  0
-__SYSCALL(  0, sys_ni_syscall, 0)
-#define __NR_xtensa				  1
-__SYSCALL(  1, sys_ni_syscall, 0)
-#define __NR_available4				  2
-__SYSCALL(  2, sys_ni_syscall, 0)
-#define __NR_available5				  3
-__SYSCALL(  3, sys_ni_syscall, 0)
-#define __NR_available6				  4
-__SYSCALL(  4, sys_ni_syscall, 0)
-#define __NR_available7				  5
-__SYSCALL(  5, sys_ni_syscall, 0)
-#define __NR_available8				  6
-__SYSCALL(  6, sys_ni_syscall, 0)
-#define __NR_available9				  7
-__SYSCALL(  7, sys_ni_syscall, 0)
-
-/* File Operations */
-
-#define __NR_open 				  8
-__SYSCALL(  8, sys_open, 3)
-#define __NR_close 				  9
-__SYSCALL(  9, sys_close, 1)
-#define __NR_dup 				 10
-__SYSCALL( 10, sys_dup, 1)
-#define __NR_dup2 				 11
-__SYSCALL( 11, sys_dup2, 2)
-#define __NR_read 				 12
-__SYSCALL( 12, sys_read, 3)
-#define __NR_write 				 13
-__SYSCALL( 13, sys_write, 3)
-#define __NR_select 				 14
-__SYSCALL( 14, sys_select, 5)
-#define __NR_lseek 				 15
-__SYSCALL( 15, sys_lseek, 3)
-#define __NR_poll 				 16
-__SYSCALL( 16, sys_poll, 3)
-#define __NR__llseek				 17
-__SYSCALL( 17, sys_llseek, 5)
-#define __NR_epoll_wait 			 18
-__SYSCALL( 18, sys_epoll_wait, 4)
-#define __NR_epoll_ctl 				 19
-__SYSCALL( 19, sys_epoll_ctl, 4)
-#define __NR_epoll_create 			 20
-__SYSCALL( 20, sys_epoll_create, 1)
-#define __NR_creat 				 21
-__SYSCALL( 21, sys_creat, 2)
-#define __NR_truncate 				 22
-__SYSCALL( 22, sys_truncate, 2)
-#define __NR_ftruncate 				 23
-__SYSCALL( 23, sys_ftruncate, 2)
-#define __NR_readv 				 24
-__SYSCALL( 24, sys_readv, 3)
-#define __NR_writev 				 25
-__SYSCALL( 25, sys_writev, 3)
-#define __NR_fsync 				 26
-__SYSCALL( 26, sys_fsync, 1)
-#define __NR_fdatasync 				 27
-__SYSCALL( 27, sys_fdatasync, 1)
-#define __NR_truncate64 			 28
-__SYSCALL( 28, sys_truncate64, 2)
-#define __NR_ftruncate64 			 29
-__SYSCALL( 29, sys_ftruncate64, 2)
-#define __NR_pread64 				 30
-__SYSCALL( 30, sys_pread64, 6)
-#define __NR_pwrite64 				 31
-__SYSCALL( 31, sys_pwrite64, 6)
-
-#define __NR_link 				 32
-__SYSCALL( 32, sys_link, 2)
-#define __NR_rename 				 33
-__SYSCALL( 33, sys_rename, 2)
-#define __NR_symlink 				 34
-__SYSCALL( 34, sys_symlink, 2)
-#define __NR_readlink 				 35
-__SYSCALL( 35, sys_readlink, 3)
-#define __NR_mknod 				 36
-__SYSCALL( 36, sys_mknod, 3)
-#define __NR_pipe 				 37
-__SYSCALL( 37, sys_pipe, 1)
-#define __NR_unlink 				 38
-__SYSCALL( 38, sys_unlink, 1)
-#define __NR_rmdir 				 39
-__SYSCALL( 39, sys_rmdir, 1)
-
-#define __NR_mkdir 				 40
-__SYSCALL( 40, sys_mkdir, 2)
-#define __NR_chdir 				 41
-__SYSCALL( 41, sys_chdir, 1)
-#define __NR_fchdir 				 42
-__SYSCALL( 42, sys_fchdir, 1)
-#define __NR_getcwd 				 43
-__SYSCALL( 43, sys_getcwd, 2)
-
-#define __NR_chmod 				 44
-__SYSCALL( 44, sys_chmod, 2)
-#define __NR_chown 				 45
-__SYSCALL( 45, sys_chown, 3)
-#define __NR_stat 				 46
-__SYSCALL( 46, sys_newstat, 2)
-#define __NR_stat64 				 47
-__SYSCALL( 47, sys_stat64, 2)
-
-#define __NR_lchown 				 48
-__SYSCALL( 48, sys_lchown, 3)
-#define __NR_lstat 				 49
-__SYSCALL( 49, sys_newlstat, 2)
-#define __NR_lstat64 				 50
-__SYSCALL( 50, sys_lstat64, 2)
-#define __NR_available51			 51
-__SYSCALL( 51, sys_ni_syscall, 0)
-
-#define __NR_fchmod 				 52
-__SYSCALL( 52, sys_fchmod, 2)
-#define __NR_fchown 				 53
-__SYSCALL( 53, sys_fchown, 3)
-#define __NR_fstat 				 54
-__SYSCALL( 54, sys_newfstat, 2)
-#define __NR_fstat64 				 55
-__SYSCALL( 55, sys_fstat64, 2)
-
-#define __NR_flock 				 56
-__SYSCALL( 56, sys_flock, 2)
-#define __NR_access 				 57
-__SYSCALL( 57, sys_access, 2)
-#define __NR_umask 				 58
-__SYSCALL( 58, sys_umask, 1)
-#define __NR_getdents 				 59
-__SYSCALL( 59, sys_getdents, 3)
-#define __NR_getdents64 			 60
-__SYSCALL( 60, sys_getdents64, 3)
-#define __NR_fcntl64 				 61
-__SYSCALL( 61, sys_fcntl64, 3)
-#define __NR_fallocate				 62
-__SYSCALL( 62, sys_fallocate, 6)
-#define __NR_fadvise64_64 			 63
-__SYSCALL( 63, xtensa_fadvise64_64, 6)
-#define __NR_utime				 64	/* glibc 2.3.3 ?? */
-__SYSCALL( 64, sys_utime, 2)
-#define __NR_utimes 				 65
-__SYSCALL( 65, sys_utimes, 2)
-#define __NR_ioctl 				 66
-__SYSCALL( 66, sys_ioctl, 3)
-#define __NR_fcntl 				 67
-__SYSCALL( 67, sys_fcntl, 3)
-
-#define __NR_setxattr 				 68
-__SYSCALL( 68, sys_setxattr, 5)
-#define __NR_getxattr 				 69
-__SYSCALL( 69, sys_getxattr, 4)
-#define __NR_listxattr 				 70
-__SYSCALL( 70, sys_listxattr, 3)
-#define __NR_removexattr 			 71
-__SYSCALL( 71, sys_removexattr, 2)
-#define __NR_lsetxattr 				 72
-__SYSCALL( 72, sys_lsetxattr, 5)
-#define __NR_lgetxattr 				 73
-__SYSCALL( 73, sys_lgetxattr, 4)
-#define __NR_llistxattr 			 74
-__SYSCALL( 74, sys_llistxattr, 3)
-#define __NR_lremovexattr 			 75
-__SYSCALL( 75, sys_lremovexattr, 2)
-#define __NR_fsetxattr 				 76
-__SYSCALL( 76, sys_fsetxattr, 5)
-#define __NR_fgetxattr 				 77
-__SYSCALL( 77, sys_fgetxattr, 4)
-#define __NR_flistxattr 			 78
-__SYSCALL( 78, sys_flistxattr, 3)
-#define __NR_fremovexattr 			 79
-__SYSCALL( 79, sys_fremovexattr, 2)
-
-/* File Map / Shared Memory Operations */
-
-#define __NR_mmap2 				 80
-__SYSCALL( 80, sys_mmap_pgoff, 6)
-#define __NR_munmap 				 81
-__SYSCALL( 81, sys_munmap, 2)
-#define __NR_mprotect 				 82
-__SYSCALL( 82, sys_mprotect, 3)
-#define __NR_brk 				 83
-__SYSCALL( 83, sys_brk, 1)
-#define __NR_mlock 				 84
-__SYSCALL( 84, sys_mlock, 2)
-#define __NR_munlock 				 85
-__SYSCALL( 85, sys_munlock, 2)
-#define __NR_mlockall 				 86
-__SYSCALL( 86, sys_mlockall, 1)
-#define __NR_munlockall 			 87
-__SYSCALL( 87, sys_munlockall, 0)
-#define __NR_mremap 				 88
-__SYSCALL( 88, sys_mremap, 4)
-#define __NR_msync 				 89
-__SYSCALL( 89, sys_msync, 3)
-#define __NR_mincore 				 90
-__SYSCALL( 90, sys_mincore, 3)
-#define __NR_madvise 				 91
-__SYSCALL( 91, sys_madvise, 3)
-#define __NR_shmget				 92
-__SYSCALL( 92, sys_shmget, 4)
-#define __NR_shmat				 93
-__SYSCALL( 93, xtensa_shmat, 4)
-#define __NR_shmctl				 94
-__SYSCALL( 94, sys_shmctl, 4)
-#define __NR_shmdt				 95
-__SYSCALL( 95, sys_shmdt, 4)
-
-/* Socket Operations */
-
-#define __NR_socket 				 96
-__SYSCALL( 96, sys_socket, 3)
-#define __NR_setsockopt 			 97
-__SYSCALL( 97, sys_setsockopt, 5)
-#define __NR_getsockopt 			 98
-__SYSCALL( 98, sys_getsockopt, 5)
-#define __NR_shutdown 				 99
-__SYSCALL( 99, sys_shutdown, 2)
-
-#define __NR_bind 				100
-__SYSCALL(100, sys_bind, 3)
-#define __NR_connect 				101
-__SYSCALL(101, sys_connect, 3)
-#define __NR_listen 				102
-__SYSCALL(102, sys_listen, 2)
-#define __NR_accept 				103
-__SYSCALL(103, sys_accept, 3)
-
-#define __NR_getsockname 			104
-__SYSCALL(104, sys_getsockname, 3)
-#define __NR_getpeername 			105
-__SYSCALL(105, sys_getpeername, 3)
-#define __NR_sendmsg 				106
-__SYSCALL(106, sys_sendmsg, 3)
-#define __NR_recvmsg 				107
-__SYSCALL(107, sys_recvmsg, 3)
-#define __NR_send 				108
-__SYSCALL(108, sys_send, 4)
-#define __NR_recv 				109
-__SYSCALL(109, sys_recv, 4)
-#define __NR_sendto 				110
-__SYSCALL(110, sys_sendto, 6)
-#define __NR_recvfrom 				111
-__SYSCALL(111, sys_recvfrom, 6)
-
-#define __NR_socketpair 			112
-__SYSCALL(112, sys_socketpair, 4)
-#define __NR_sendfile 				113
-__SYSCALL(113, sys_sendfile, 4)
-#define __NR_sendfile64 			114
-__SYSCALL(114, sys_sendfile64, 4)
-#define __NR_sendmmsg				115
-__SYSCALL(115, sys_sendmmsg, 4)
-
-/* Process Operations */
-
-#define __NR_clone 				116
-__SYSCALL(116, sys_clone, 5)
-#define __NR_execve 				117
-__SYSCALL(117, sys_execve, 3)
-#define __NR_exit 				118
-__SYSCALL(118, sys_exit, 1)
-#define __NR_exit_group 			119
-__SYSCALL(119, sys_exit_group, 1)
-#define __NR_getpid 				120
-__SYSCALL(120, sys_getpid, 0)
-#define __NR_wait4 				121
-__SYSCALL(121, sys_wait4, 4)
-#define __NR_waitid 				122
-__SYSCALL(122, sys_waitid, 5)
-#define __NR_kill 				123
-__SYSCALL(123, sys_kill, 2)
-#define __NR_tkill 				124
-__SYSCALL(124, sys_tkill, 2)
-#define __NR_tgkill 				125
-__SYSCALL(125, sys_tgkill, 3)
-#define __NR_set_tid_address 			126
-__SYSCALL(126, sys_set_tid_address, 1)
-#define __NR_gettid 				127
-__SYSCALL(127, sys_gettid, 0)
-#define __NR_setsid 				128
-__SYSCALL(128, sys_setsid, 0)
-#define __NR_getsid 				129
-__SYSCALL(129, sys_getsid, 1)
-#define __NR_prctl 				130
-__SYSCALL(130, sys_prctl, 5)
-#define __NR_personality 			131
-__SYSCALL(131, sys_personality, 1)
-#define __NR_getpriority 			132
-__SYSCALL(132, sys_getpriority, 2)
-#define __NR_setpriority 			133
-__SYSCALL(133, sys_setpriority, 3)
-#define __NR_setitimer 				134
-__SYSCALL(134, sys_setitimer, 3)
-#define __NR_getitimer 				135
-__SYSCALL(135, sys_getitimer, 2)
-#define __NR_setuid 				136
-__SYSCALL(136, sys_setuid, 1)
-#define __NR_getuid 				137
-__SYSCALL(137, sys_getuid, 0)
-#define __NR_setgid 				138
-__SYSCALL(138, sys_setgid, 1)
-#define __NR_getgid 				139
-__SYSCALL(139, sys_getgid, 0)
-#define __NR_geteuid 				140
-__SYSCALL(140, sys_geteuid, 0)
-#define __NR_getegid 				141
-__SYSCALL(141, sys_getegid, 0)
-#define __NR_setreuid 				142
-__SYSCALL(142, sys_setreuid, 2)
-#define __NR_setregid 				143
-__SYSCALL(143, sys_setregid, 2)
-#define __NR_setresuid 				144
-__SYSCALL(144, sys_setresuid, 3)
-#define __NR_getresuid 				145
-__SYSCALL(145, sys_getresuid, 3)
-#define __NR_setresgid 				146
-__SYSCALL(146, sys_setresgid, 3)
-#define __NR_getresgid 				147
-__SYSCALL(147, sys_getresgid, 3)
-#define __NR_setpgid 				148
-__SYSCALL(148, sys_setpgid, 2)
-#define __NR_getpgid 				149
-__SYSCALL(149, sys_getpgid, 1)
-#define __NR_getppid 				150
-__SYSCALL(150, sys_getppid, 0)
-#define __NR_getpgrp				151
-__SYSCALL(151, sys_getpgrp, 0)
-
-#define __NR_reserved152 			152	/* set_thread_area */
-__SYSCALL(152, sys_ni_syscall, 0)
-#define __NR_reserved153 			153	/* get_thread_area */
-__SYSCALL(153, sys_ni_syscall, 0)
-#define __NR_times 				154
-__SYSCALL(154, sys_times, 1)
-#define __NR_acct 				155
-__SYSCALL(155, sys_acct, 1)
-#define __NR_sched_setaffinity 			156
-__SYSCALL(156, sys_sched_setaffinity, 3)
-#define __NR_sched_getaffinity 			157
-__SYSCALL(157, sys_sched_getaffinity, 3)
-#define __NR_capget 				158
-__SYSCALL(158, sys_capget, 2)
-#define __NR_capset 				159
-__SYSCALL(159, sys_capset, 2)
-#define __NR_ptrace 				160
-__SYSCALL(160, sys_ptrace, 4)
-#define __NR_semtimedop				161
-__SYSCALL(161, sys_semtimedop, 5)
-#define __NR_semget				162
-__SYSCALL(162, sys_semget, 4)
-#define __NR_semop				163
-__SYSCALL(163, sys_semop, 4)
-#define __NR_semctl				164
-__SYSCALL(164, sys_semctl, 4)
-#define __NR_available165			165
-__SYSCALL(165, sys_ni_syscall, 0)
-#define __NR_msgget				166
-__SYSCALL(166, sys_msgget, 4)
-#define __NR_msgsnd				167
-__SYSCALL(167, sys_msgsnd, 4)
-#define __NR_msgrcv				168
-__SYSCALL(168, sys_msgrcv, 4)
-#define __NR_msgctl				169
-__SYSCALL(169, sys_msgctl, 4)
-#define __NR_available170			170
-__SYSCALL(170, sys_ni_syscall, 0)
-
-/* File System */
-
-#define __NR_umount2				171
-__SYSCALL(171, sys_umount, 2)
-#define __NR_mount 				172
-__SYSCALL(172, sys_mount, 5)
-#define __NR_swapon 				173
-__SYSCALL(173, sys_swapon, 2)
-#define __NR_chroot 				174
-__SYSCALL(174, sys_chroot, 1)
-#define __NR_pivot_root 			175
-__SYSCALL(175, sys_pivot_root, 2)
-#define __NR_umount 				176
-__SYSCALL(176, sys_oldumount, 1)
 #define __ARCH_WANT_SYS_OLDUMOUNT
-#define __NR_swapoff 				177
-__SYSCALL(177, sys_swapoff, 1)
-#define __NR_sync 				178
-__SYSCALL(178, sys_sync, 0)
-#define __NR_syncfs				179
-__SYSCALL(179, sys_syncfs, 1)
-#define __NR_setfsuid 				180
-__SYSCALL(180, sys_setfsuid, 1)
-#define __NR_setfsgid 				181
-__SYSCALL(181, sys_setfsgid, 1)
-#define __NR_sysfs 				182
-__SYSCALL(182, sys_sysfs, 3)
-#define __NR_ustat 				183
-__SYSCALL(183, sys_ustat, 2)
-#define __NR_statfs 				184
-__SYSCALL(184, sys_statfs, 2)
-#define __NR_fstatfs 				185
-__SYSCALL(185, sys_fstatfs, 2)
-#define __NR_statfs64 				186
-__SYSCALL(186, sys_statfs64, 3)
-#define __NR_fstatfs64 				187
-__SYSCALL(187, sys_fstatfs64, 3)
-
-/* System */
-
-#define __NR_setrlimit 				188
-__SYSCALL(188, sys_setrlimit, 2)
-#define __NR_getrlimit 				189
-__SYSCALL(189, sys_getrlimit, 2)
-#define __NR_getrusage 				190
-__SYSCALL(190, sys_getrusage, 2)
-#define __NR_futex				191
-__SYSCALL(191, sys_futex, 5)
-#define __NR_gettimeofday 			192
-__SYSCALL(192, sys_gettimeofday, 2)
-#define __NR_settimeofday 			193
-__SYSCALL(193, sys_settimeofday, 2)
-#define __NR_adjtimex 				194
-__SYSCALL(194, sys_adjtimex, 1)
-#define __NR_nanosleep	 			195
-__SYSCALL(195, sys_nanosleep, 2)
-#define __NR_getgroups 				196
-__SYSCALL(196, sys_getgroups, 2)
-#define __NR_setgroups 				197
-__SYSCALL(197, sys_setgroups, 2)
-#define __NR_sethostname 			198
-__SYSCALL(198, sys_sethostname, 2)
-#define __NR_setdomainname 			199
-__SYSCALL(199, sys_setdomainname, 2)
-#define __NR_syslog 				200
-__SYSCALL(200, sys_syslog, 3)
-#define __NR_vhangup 				201
-__SYSCALL(201, sys_vhangup, 0)
-#define __NR_uselib 				202
-__SYSCALL(202, sys_uselib, 1)
-#define __NR_reboot 				203
-__SYSCALL(203, sys_reboot, 3)
-#define __NR_quotactl 				204
-__SYSCALL(204, sys_quotactl, 4)
-#define __NR_nfsservctl 			205
-__SYSCALL(205, sys_ni_syscall, 0)			/* old nfsservctl */
-#define __NR__sysctl 				206
-__SYSCALL(206, sys_sysctl, 1)
-#define __NR_bdflush 				207
-__SYSCALL(207, sys_bdflush, 2)
-#define __NR_uname 				208
-__SYSCALL(208, sys_newuname, 1)
-#define __NR_sysinfo 				209
-__SYSCALL(209, sys_sysinfo, 1)
-#define __NR_init_module 			210
-__SYSCALL(210, sys_init_module, 2)
-#define __NR_delete_module 			211
-__SYSCALL(211, sys_delete_module, 1)
-
-#define __NR_sched_setparam 			212
-__SYSCALL(212, sys_sched_setparam, 2)
-#define __NR_sched_getparam 			213
-__SYSCALL(213, sys_sched_getparam, 2)
-#define __NR_sched_setscheduler 		214
-__SYSCALL(214, sys_sched_setscheduler, 3)
-#define __NR_sched_getscheduler 		215
-__SYSCALL(215, sys_sched_getscheduler, 1)
-#define __NR_sched_get_priority_max 		216
-__SYSCALL(216, sys_sched_get_priority_max, 1)
-#define __NR_sched_get_priority_min 		217
-__SYSCALL(217, sys_sched_get_priority_min, 1)
-#define __NR_sched_rr_get_interval 		218
-__SYSCALL(218, sys_sched_rr_get_interval, 2)
-#define __NR_sched_yield 			219
-__SYSCALL(219, sys_sched_yield, 0)
-#define __NR_available222 			222
-__SYSCALL(222, sys_ni_syscall, 0)
-
-/* Signal Handling */
-
-#define __NR_restart_syscall 			223
-__SYSCALL(223, sys_restart_syscall, 0)
-#define __NR_sigaltstack 			224
-__SYSCALL(224, sys_sigaltstack, 2)
-#define __NR_rt_sigreturn 			225
-__SYSCALL(225, xtensa_rt_sigreturn, 1)
-#define __NR_rt_sigaction 			226
-__SYSCALL(226, sys_rt_sigaction, 4)
-#define __NR_rt_sigprocmask 			227
-__SYSCALL(227, sys_rt_sigprocmask, 4)
-#define __NR_rt_sigpending 			228
-__SYSCALL(228, sys_rt_sigpending, 2)
-#define __NR_rt_sigtimedwait 			229
-__SYSCALL(229, sys_rt_sigtimedwait, 4)
-#define __NR_rt_sigqueueinfo 			230
-__SYSCALL(230, sys_rt_sigqueueinfo, 3)
-#define __NR_rt_sigsuspend 			231
-__SYSCALL(231, sys_rt_sigsuspend, 2)
-
-/* Message */
-
-#define __NR_mq_open 				232
-__SYSCALL(232, sys_mq_open, 4)
-#define __NR_mq_unlink 				233
-__SYSCALL(233, sys_mq_unlink, 1)
-#define __NR_mq_timedsend 			234
-__SYSCALL(234, sys_mq_timedsend, 5)
-#define __NR_mq_timedreceive 			235
-__SYSCALL(235, sys_mq_timedreceive, 5)
-#define __NR_mq_notify 				236
-__SYSCALL(236, sys_mq_notify, 2)
-#define __NR_mq_getsetattr 			237
-__SYSCALL(237, sys_mq_getsetattr, 3)
-#define __NR_available238			238
-__SYSCALL(238, sys_ni_syscall, 0)
-
-/* IO */
-
-#define __NR_io_setup 				239
-__SYSCALL(239, sys_io_setup, 2)
-#define __NR_io_destroy 			240
-__SYSCALL(240, sys_io_destroy, 1)
-#define __NR_io_submit 				241
-__SYSCALL(241, sys_io_submit, 3)
-#define __NR_io_getevents 			242
-__SYSCALL(242, sys_io_getevents, 5)
-#define __NR_io_cancel 				243
-__SYSCALL(243, sys_io_cancel, 3)
-#define __NR_clock_settime 			244
-__SYSCALL(244, sys_clock_settime, 2)
-#define __NR_clock_gettime 			245
-__SYSCALL(245, sys_clock_gettime, 2)
-#define __NR_clock_getres 			246
-__SYSCALL(246, sys_clock_getres, 2)
-#define __NR_clock_nanosleep 			247
-__SYSCALL(247, sys_clock_nanosleep, 4)
-
-/* Timer */
-
-#define __NR_timer_create 			248
-__SYSCALL(248, sys_timer_create, 3)
-#define __NR_timer_delete 			249
-__SYSCALL(249, sys_timer_delete, 1)
-#define __NR_timer_settime 			250
-__SYSCALL(250, sys_timer_settime, 4)
-#define __NR_timer_gettime 			251
-__SYSCALL(251, sys_timer_gettime, 2)
-#define __NR_timer_getoverrun 			252
-__SYSCALL(252, sys_timer_getoverrun, 1)
-
-/* System */
-
-#define __NR_reserved253			253
-__SYSCALL(253, sys_ni_syscall, 0)
-#define __NR_lookup_dcookie 			254
-__SYSCALL(254, sys_lookup_dcookie, 4)
-#define __NR_available255			255
-__SYSCALL(255, sys_ni_syscall, 0)
-#define __NR_add_key 				256
-__SYSCALL(256, sys_add_key, 5)
-#define __NR_request_key 			257
-__SYSCALL(257, sys_request_key, 5)
-#define __NR_keyctl 				258
-__SYSCALL(258, sys_keyctl, 5)
-#define __NR_available259			259
-__SYSCALL(259, sys_ni_syscall, 0)
-
-
-#define __NR_readahead				260
-__SYSCALL(260, sys_readahead, 5)
-#define __NR_remap_file_pages			261
-__SYSCALL(261, sys_remap_file_pages, 5)
-#define __NR_migrate_pages			262
-__SYSCALL(262, sys_migrate_pages, 0)
-#define __NR_mbind				263
-__SYSCALL(263, sys_mbind, 6)
-#define __NR_get_mempolicy			264
-__SYSCALL(264, sys_get_mempolicy, 5)
-#define __NR_set_mempolicy			265
-__SYSCALL(265, sys_set_mempolicy, 3)
-#define __NR_unshare				266
-__SYSCALL(266, sys_unshare, 1)
-#define __NR_move_pages				267
-__SYSCALL(267, sys_move_pages, 0)
-#define __NR_splice				268
-__SYSCALL(268, sys_splice, 0)
-#define __NR_tee				269
-__SYSCALL(269, sys_tee, 0)
-#define __NR_vmsplice				270
-__SYSCALL(270, sys_vmsplice, 0)
-#define __NR_available271			271
-__SYSCALL(271, sys_ni_syscall, 0)
-
-#define __NR_pselect6				272
-__SYSCALL(272, sys_pselect6, 0)
-#define __NR_ppoll				273
-__SYSCALL(273, sys_ppoll, 0)
-#define __NR_epoll_pwait			274
-__SYSCALL(274, sys_epoll_pwait, 0)
-#define __NR_epoll_create1		275
-__SYSCALL(275, sys_epoll_create1, 1)
-
-#define __NR_inotify_init			276
-__SYSCALL(276, sys_inotify_init, 0)
-#define __NR_inotify_add_watch			277
-__SYSCALL(277, sys_inotify_add_watch, 3)
-#define __NR_inotify_rm_watch			278
-__SYSCALL(278, sys_inotify_rm_watch, 2)
-#define __NR_inotify_init1			279
-__SYSCALL(279, sys_inotify_init1, 1)
-
-#define __NR_getcpu				280
-__SYSCALL(280, sys_getcpu, 0)
-#define __NR_kexec_load				281
-__SYSCALL(281, sys_ni_syscall, 0)
-
-#define __NR_ioprio_set				282
-__SYSCALL(282, sys_ioprio_set, 2)
-#define __NR_ioprio_get				283
-__SYSCALL(283, sys_ioprio_get, 3)
-
-#define __NR_set_robust_list			284
-__SYSCALL(284, sys_set_robust_list, 3)
-#define __NR_get_robust_list			285
-__SYSCALL(285, sys_get_robust_list, 3)
-#define __NR_available286			286
-__SYSCALL(286, sys_ni_syscall, 0)
-#define __NR_available287			287
-__SYSCALL(287, sys_ni_syscall, 0)
-
-/* Relative File Operations */
-
-#define __NR_openat				288
-__SYSCALL(288, sys_openat, 4)
-#define __NR_mkdirat				289
-__SYSCALL(289, sys_mkdirat, 3)
-#define __NR_mknodat				290
-__SYSCALL(290, sys_mknodat, 4)
-#define __NR_unlinkat				291
-__SYSCALL(291, sys_unlinkat, 3)
-#define __NR_renameat				292
-__SYSCALL(292, sys_renameat, 4)
-#define __NR_linkat				293
-__SYSCALL(293, sys_linkat, 5)
-#define __NR_symlinkat				294
-__SYSCALL(294, sys_symlinkat, 3)
-#define __NR_readlinkat				295
-__SYSCALL(295, sys_readlinkat, 4)
-#define __NR_utimensat				296
-__SYSCALL(296, sys_utimensat, 0)
-#define __NR_fchownat				297
-__SYSCALL(297, sys_fchownat, 5)
-#define __NR_futimesat				298
-__SYSCALL(298, sys_futimesat, 4)
-#define __NR_fstatat64				299
-__SYSCALL(299, sys_fstatat64, 0)
-#define __NR_fchmodat				300
-__SYSCALL(300, sys_fchmodat, 4)
-#define __NR_faccessat				301
-__SYSCALL(301, sys_faccessat, 4)
-#define __NR_available302			302
-__SYSCALL(302, sys_ni_syscall, 0)
-#define __NR_available303			303
-__SYSCALL(303, sys_ni_syscall, 0)
-
-#define __NR_signalfd				304
-__SYSCALL(304, sys_signalfd, 3)
-/*  305 was __NR_timerfd  */
-__SYSCALL(305, sys_ni_syscall, 0)
-#define __NR_eventfd				306
-__SYSCALL(306, sys_eventfd, 1)
-#define __NR_recvmmsg				307
-__SYSCALL(307, sys_recvmmsg, 5)
-
-#define __NR_setns				308
-__SYSCALL(308, sys_setns, 2)
-#define __NR_signalfd4				309
-__SYSCALL(309, sys_signalfd4, 4)
-#define __NR_dup3				310
-__SYSCALL(310, sys_dup3, 3)
-#define __NR_pipe2				311
-__SYSCALL(311, sys_pipe2, 2)
-
-#define __NR_timerfd_create			312
-__SYSCALL(312, sys_timerfd_create, 2)
-#define __NR_timerfd_settime			313
-__SYSCALL(313, sys_timerfd_settime, 4)
-#define __NR_timerfd_gettime			314
-__SYSCALL(314, sys_timerfd_gettime, 2)
-#define __NR_available315			315
-__SYSCALL(315, sys_ni_syscall, 0)
-
-#define __NR_eventfd2				316
-__SYSCALL(316, sys_eventfd2, 2)
-#define __NR_preadv				317
-__SYSCALL(317, sys_preadv, 5)
-#define __NR_pwritev				318
-__SYSCALL(318, sys_pwritev, 5)
-#define __NR_available319			319
-__SYSCALL(319, sys_ni_syscall, 0)
-
-#define __NR_fanotify_init			320
-__SYSCALL(320, sys_fanotify_init, 2)
-#define __NR_fanotify_mark			321
-__SYSCALL(321, sys_fanotify_mark, 6)
-#define __NR_process_vm_readv			322
-__SYSCALL(322, sys_process_vm_readv, 6)
-#define __NR_process_vm_writev			323
-__SYSCALL(323, sys_process_vm_writev, 6)
-
-#define __NR_name_to_handle_at			324
-__SYSCALL(324, sys_name_to_handle_at, 5)
-#define __NR_open_by_handle_at			325
-__SYSCALL(325, sys_open_by_handle_at, 3)
-#define __NR_sync_file_range2			326
-__SYSCALL(326, sys_sync_file_range2, 6)
-#define __NR_perf_event_open			327
-__SYSCALL(327, sys_perf_event_open, 5)
-
-#define __NR_rt_tgsigqueueinfo			328
-__SYSCALL(328, sys_rt_tgsigqueueinfo, 4)
-#define __NR_clock_adjtime			329
-__SYSCALL(329, sys_clock_adjtime, 2)
-#define __NR_prlimit64				330
-__SYSCALL(330, sys_prlimit64, 4)
-#define __NR_kcmp				331
-__SYSCALL(331, sys_kcmp, 5)
-
-#define __NR_finit_module			332
-__SYSCALL(332, sys_finit_module, 3)
-
-#define __NR_accept4				333
-__SYSCALL(333, sys_accept4, 4)
-
-#define __NR_sched_setattr			334
-__SYSCALL(334, sys_sched_setattr, 2)
-#define __NR_sched_getattr			335
-__SYSCALL(335, sys_sched_getattr, 3)
-
-#define __NR_renameat2				336
-__SYSCALL(336, sys_renameat2, 5)
-
-#define __NR_seccomp				337
-__SYSCALL(337, sys_seccomp, 3)
-#define __NR_getrandom				338
-__SYSCALL(338, sys_getrandom, 3)
-#define __NR_memfd_create			339
-__SYSCALL(339, sys_memfd_create, 2)
-#define __NR_bpf				340
-__SYSCALL(340, sys_bpf, 3)
-#define __NR_execveat				341
-__SYSCALL(341, sys_execveat, 5)
-
-#define __NR_userfaultfd			342
-__SYSCALL(342, sys_userfaultfd, 1)
-#define __NR_membarrier				343
-__SYSCALL(343, sys_membarrier, 2)
-#define __NR_mlock2				344
-__SYSCALL(344, sys_mlock2, 3)
-#define __NR_copy_file_range			345
-__SYSCALL(345, sys_copy_file_range, 6)
-#define __NR_preadv2				346
-__SYSCALL(346, sys_preadv2, 6)
-#define __NR_pwritev2				347
-__SYSCALL(347, sys_pwritev2, 6)
-
-#define __NR_pkey_mprotect			348
-__SYSCALL(348, sys_pkey_mprotect, 4)
-#define __NR_pkey_alloc				349
-__SYSCALL(349, sys_pkey_alloc, 2)
-#define __NR_pkey_free				350
-__SYSCALL(350, sys_pkey_free, 1)
-
-#define __NR_statx				351
-__SYSCALL(351, sys_statx, 5)
-
-#ifdef __KERNEL__
-#define __NR_syscalls				352
-#endif
 
-#undef __SYSCALL
+#include <asm/unistd_32.h>
 
 #endif /* _UAPI_XTENSA_UNISTD_H */
diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c
index 8201748..b0400e4 100644
--- a/arch/xtensa/kernel/syscall.c
+++ b/arch/xtensa/kernel/syscall.c
@@ -33,8 +33,9 @@
 syscall_t sys_call_table[__NR_syscall_count] /* FIXME __cacheline_aligned */= {
 	[0 ... __NR_syscall_count - 1] = (syscall_t)&sys_ni_syscall,
 
-#define __SYSCALL(nr,symbol,nargs) [ nr ] = (syscall_t)symbol,
-#include <uapi/asm/unistd.h>
+#define __SYSCALL(nr, entry, nargs) [ nr ] = (syscall_t)entry,
+#include <asm/syscall_table.h>
+#undef __SYSCALL
 };
 
 #define COLOUR_ALIGN(addr, pgoff) \
-- 
1.9.1

Re: [PATCH v1 1/4] xtensa: move SYS_XTENSA_* macros to non uapi header

[Max Filippov]

On Thu, Nov 1, 2018 at 6:56 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> All the SYS_XTENSA_* macros used by sysxtensa syscall
> handlers are resides in the uapi header file move to
> non uapi header asm/unistd.h as it is not used by any
> user space applications.

These definitions are meant to be used by the userspace to
perform atomic operations in the absence of atomic access
instructions in the xtensa CPU variant.

-- 
Thanks.
-- Max

Re: [PATCH v1 4/4] xtensa: generate uapi header and syscall table header files

[Max Filippov]

On Thu, Nov 1, 2018 at 6:57 AM Firoz Khan <firoz.khan@linaro.org> wrote:
>
> System call table generation script must be run to gener-
> ate unistd_32.h and syscall_table.h files. This patch will
> have changes which will invokes the script.
>
> This patch will generate unistd_32.h and syscall_table.h
> files by the syscall table generation script invoked by
> xtensa/Makefile and the generated files against the removed
> files must be identical.
>
> The generated uapi header file will be included in uapi/-
> asm/unistd.h and generated system call table header file
> will be included by kernel/syscall.c file.
>
> Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> ---
>  arch/xtensa/Makefile                  |   3 +
>  arch/xtensa/include/asm/Kbuild        |   1 +
>  arch/xtensa/include/uapi/asm/Kbuild   |   1 +
>  arch/xtensa/include/uapi/asm/unistd.h | 782 +---------------------------------
>  arch/xtensa/kernel/syscall.c          |   5 +-
>  5 files changed, 10 insertions(+), 782 deletions(-)
>
> diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile
> index d67e30fa..1e7b179 100644
> --- a/arch/xtensa/Makefile
> +++ b/arch/xtensa/Makefile
> @@ -99,6 +99,9 @@ all Image zImage uImage: vmlinux
>  dtbs: scripts
>         $(Q)$(MAKE) $(build)=$(boot)/dts
>
> +archheaders:
> +       $(Q)$(MAKE) $(build)=arch/xtensa/kernel/syscalls all
> +
>  define archhelp
>    @echo '* Image       - Kernel ELF image with reset vector'
>    @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
> diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
> index 82c75643..b35d2e6 100644
> --- a/arch/xtensa/include/asm/Kbuild
> +++ b/arch/xtensa/include/asm/Kbuild
> @@ -28,3 +28,4 @@ generic-y += topology.h
>  generic-y += trace_clock.h
>  generic-y += word-at-a-time.h
>  generic-y += xor.h
> +generic-y += syscall_table.h

This doesn't look right: syscall_table.h is not asm-generic header.

> diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
> index 837d4dd..f826d52 100644
> --- a/arch/xtensa/include/uapi/asm/Kbuild
> +++ b/arch/xtensa/include/uapi/asm/Kbuild
> @@ -11,3 +11,4 @@ generic-y += resource.h
>  generic-y += siginfo.h
>  generic-y += statfs.h
>  generic-y += termios.h
> +generic-y += unistd_32.h

Ditto: unistd32_.h is not asm-generic header.

-- 
Thanks.
-- Max

Re: [PATCH v1 1/4] xtensa: move SYS_XTENSA_* macros to non uapi header

[Firoz Khan]

Hi Max,

On Tue, 6 Nov 2018 at 02:59, Max Filippov <jcmvbkbc@gmail.com> wrote:
>
> On Thu, Nov 1, 2018 at 6:56 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > All the SYS_XTENSA_* macros used by sysxtensa syscall
> > handlers are resides in the uapi header file move to
> > non uapi header asm/unistd.h as it is not used by any
> > user space applications.
>
> These definitions are meant to be used by the userspace to
> perform atomic operations in the absence of atomic access
> instructions in the xtensa CPU variant.

Ohh. I can revert these changes.
Thanks for your feedback.

Firoz

>
> --
> Thanks.
> -- Max

Re: [PATCH v1 4/4] xtensa: generate uapi header and syscall table header files

[Firoz Khan]

Hi Max,

On Tue, 6 Nov 2018 at 03:14, Max Filippov <jcmvbkbc@gmail.com> wrote:
>
> On Thu, Nov 1, 2018 at 6:57 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> >
> > System call table generation script must be run to gener-
> > ate unistd_32.h and syscall_table.h files. This patch will
> > have changes which will invokes the script.
> >
> > This patch will generate unistd_32.h and syscall_table.h
> > files by the syscall table generation script invoked by
> > xtensa/Makefile and the generated files against the removed
> > files must be identical.
> >
> > The generated uapi header file will be included in uapi/-
> > asm/unistd.h and generated system call table header file
> > will be included by kernel/syscall.c file.
> >
> > Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
> > ---
> >  arch/xtensa/Makefile                  |   3 +
> >  arch/xtensa/include/asm/Kbuild        |   1 +
> >  arch/xtensa/include/uapi/asm/Kbuild   |   1 +
> >  arch/xtensa/include/uapi/asm/unistd.h | 782 +---------------------------------
> >  arch/xtensa/kernel/syscall.c          |   5 +-
> >  5 files changed, 10 insertions(+), 782 deletions(-)
> >
> > diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile
> > index d67e30fa..1e7b179 100644
> > --- a/arch/xtensa/Makefile
> > +++ b/arch/xtensa/Makefile
> > @@ -99,6 +99,9 @@ all Image zImage uImage: vmlinux
> >  dtbs: scripts
> >         $(Q)$(MAKE) $(build)=$(boot)/dts
> >
> > +archheaders:
> > +       $(Q)$(MAKE) $(build)=arch/xtensa/kernel/syscalls all
> > +
> >  define archhelp
> >    @echo '* Image       - Kernel ELF image with reset vector'
> >    @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
> > diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
> > index 82c75643..b35d2e6 100644
> > --- a/arch/xtensa/include/asm/Kbuild
> > +++ b/arch/xtensa/include/asm/Kbuild
> > @@ -28,3 +28,4 @@ generic-y += topology.h
> >  generic-y += trace_clock.h
> >  generic-y += word-at-a-time.h
> >  generic-y += xor.h
> > +generic-y += syscall_table.h
>
> This doesn't look right: syscall_table.h is not asm-generic header.

If I remove Kbuild entries, the generated file get removed in build time.

SYSTBL  arch/xtensa/include/generated/asm/syscall_table.h
SYSHDR  arch/xtensa/include/generated/uapi/asm/unistd_32.h
REMOVE  arch/xtensa/include/generated/uapi/asm/unistd_32.h
REMOVE  arch/xtensa/include/generated/asm/syscall_table.h

Firoz

>
> > diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
> > index 837d4dd..f826d52 100644
> > --- a/arch/xtensa/include/uapi/asm/Kbuild
> > +++ b/arch/xtensa/include/uapi/asm/Kbuild
> > @@ -11,3 +11,4 @@ generic-y += resource.h
> >  generic-y += siginfo.h
> >  generic-y += statfs.h
> >  generic-y += termios.h
> > +generic-y += unistd_32.h
>
> Ditto: unistd32_.h is not asm-generic header.
>
> --
> Thanks.
> -- Max

Re: [PATCH v1 4/4] xtensa: generate uapi header and syscall table header files

[Arnd Bergmann]

On Mon, Nov 5, 2018 at 10:44 PM Max Filippov <jcmvbkbc@gmail.com> wrote:
> On Thu, Nov 1, 2018 at 6:57 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > index 82c75643..b35d2e6 100644
> > --- a/arch/xtensa/include/asm/Kbuild
> > +++ b/arch/xtensa/include/asm/Kbuild
> > @@ -28,3 +28,4 @@ generic-y += topology.h
> >  generic-y += trace_clock.h
> >  generic-y += word-at-a-time.h
> >  generic-y += xor.h
> > +generic-y += syscall_table.h
>
> This doesn't look right: syscall_table.h is not asm-generic header.
>
> > diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
> > index 837d4dd..f826d52 100644
> > --- a/arch/xtensa/include/uapi/asm/Kbuild
> > +++ b/arch/xtensa/include/uapi/asm/Kbuild
> > @@ -11,3 +11,4 @@ generic-y += resource.h
> >  generic-y += siginfo.h
> >  generic-y += statfs.h
> >  generic-y += termios.h
> > +generic-y += unistd_32.h
>
> Ditto: unistd32_.h is not asm-generic header.

I think the correct syntax here would be

generated-y += unistd_32.h

Firoz, if I remember correctly, this came up before, maybe you just did
not update all architectures together?

        Arnd

Re: [PATCH v1 4/4] xtensa: generate uapi header and syscall table header files

[Firoz Khan]

Hi Arnd,

On Tue, 6 Nov 2018 at 19:04, Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Mon, Nov 5, 2018 at 10:44 PM Max Filippov <jcmvbkbc@gmail.com> wrote:
> > On Thu, Nov 1, 2018 at 6:57 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > > index 82c75643..b35d2e6 100644
> > > --- a/arch/xtensa/include/asm/Kbuild
> > > +++ b/arch/xtensa/include/asm/Kbuild
> > > @@ -28,3 +28,4 @@ generic-y += topology.h
> > >  generic-y += trace_clock.h
> > >  generic-y += word-at-a-time.h
> > >  generic-y += xor.h
> > > +generic-y += syscall_table.h
> >
> > This doesn't look right: syscall_table.h is not asm-generic header.
> >
> > > diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
> > > index 837d4dd..f826d52 100644
> > > --- a/arch/xtensa/include/uapi/asm/Kbuild
> > > +++ b/arch/xtensa/include/uapi/asm/Kbuild
> > > @@ -11,3 +11,4 @@ generic-y += resource.h
> > >  generic-y += siginfo.h
> > >  generic-y += statfs.h
> > >  generic-y += termios.h
> > > +generic-y += unistd_32.h
> >
> > Ditto: unistd32_.h is not asm-generic header.
>
> I think the correct syntax here would be
>
> generated-y += unistd_32.h
>
> Firoz, if I remember correctly, this came up before, maybe you just did
> not update all architectures together?

My initial patches does have generated-y += unistd_32.h instead of
generic-y += unistd_32.h.
If I remember someone pointed out that this implementation doesn't
look good. So I
replaced to generic-y += unistd_32.h.

Sure, I'll change to generated-y += unistd_32.h instead of generic-y
+= unistd_32.h.

Max, this looks ok. right?

Thanks
Firoz


>
>         Arnd

Re: [PATCH v1 4/4] xtensa: generate uapi header and syscall table header files

[Max Filippov]

Hi Firoz,

On Tue, Nov 6, 2018 at 7:12 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> My initial patches does have generated-y += unistd_32.h instead of
> generic-y += unistd_32.h.
> If I remember someone pointed out that this implementation doesn't
> look good. So I
> replaced to generic-y += unistd_32.h.

I've only found the following case, where you did the replacement:
  https://lkml.org/lkml/2018/8/9/177
and I'm pretty sure that Michal meant that only the missing newline
didn't look good.

> Sure, I'll change to generated-y += unistd_32.h instead of generic-y
> += unistd_32.h.
>
> Max, this looks ok. right?

Yes, generated-y looks goodto me.
Could you also please move the line
  generated-y += syscall_table.h
up, so that alphabetical order of the header names is preserved?

--
Thanks.
-- Max

Re: [PATCH v1 0/4] xtensa: system call table generation support

[Max Filippov]

On Thu, Nov 01, 2018 at 07:26:17PM +0530, Firoz Khan wrote:
> The purpose of this patch series is, we can easily
> add/modify/delete system call table support by cha-
> nging entry in syscall.tbl file instead of manually
> changing many files. The other goal is to unify the 
> system call table generation support implementation 
> across all the architectures. 
 
Do I understand it right that you're also planning to unify scripts
and makefile snippets used to generate headers, as they're not
architecture-specific?

> Firoz Khan (4):
>   xtensa: move SYS_XTENSA_* macros to non uapi header
>   xtensa: add __NR_syscalls along with __NR_syscall_count
>   xtensa: add system call table generation support
>   xtensa: generate uapi header and syscall table header files

Other than the two notes that I've posted to the individual patches
this series looks good to me.

-- 
Thanks.
-- Max

Re: [PATCH v1 4/4] xtensa: generate uapi header and syscall table header files

[Firoz Khan]

Hi Max,

On Wed, 7 Nov 2018 at 01:54, Max Filippov <jcmvbkbc@gmail.com> wrote:
>
> Hi Firoz,
>
> On Tue, Nov 6, 2018 at 7:12 AM Firoz Khan <firoz.khan@linaro.org> wrote:
> > My initial patches does have generated-y += unistd_32.h instead of
> > generic-y += unistd_32.h.
> > If I remember someone pointed out that this implementation doesn't
> > look good. So I
> > replaced to generic-y += unistd_32.h.
>
> I've only found the following case, where you did the replacement:
>   https://lkml.org/lkml/2018/8/9/177
> and I'm pretty sure that Michal meant that only the missing newline
> didn't look good.
>
> > Sure, I'll change to generated-y += unistd_32.h instead of generic-y
> > += unistd_32.h.
> >
> > Max, this looks ok. right?
>
> Yes, generated-y looks goodto me.
> Could you also please move the line
>   generated-y += syscall_table.h
> up, so that alphabetical order of the header names is preserved?

Sure, will do.

Thanks
Firoz

>
> --
> Thanks.
> -- Max