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| author |   Firoz Khan <firoz.khan@linaro.org> | 2018-09-26 11:06:25 +0530 |
|---|---|---|
| committer |   Helge Deller <deller@gmx.de> | 2018-12-10 08:26:03 +0100 |
| commit | dbf91a54f7cbf2b33c622e42ec0ec87f0423426c (patch) | |
| tree | c06b362fd79fff3014266ee9985f57b4e3a4bec9 /arch/parisc/include | |
| parent | parisc: move __IGNORE* entries to non uapi header (diff) | |
| download | linux-dev-dbf91a54f7cbf2b33c622e42ec0ec87f0423426c.tar.xz linux-dev-dbf91a54f7cbf2b33c622e42ec0ec87f0423426c.zip | |
parisc: add __NR_syscalls along with __NR_Linux_syscalls
__NR_Linux_syscalls macro holds the number of system call
exist in parisc architecture. We have to change the value
of __NR_Linux_syscalls, 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-
_Linux_syscalls value.
1. Update __NR_Linux_syscalls in asm/unistd.h manually by
counting the no.of system calls. No need to update __NR-
_Linux_syscalls 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_Linux_syscalls 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_Linux_syscalls 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>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/include')
| -rw-r--r-- | arch/parisc/include/asm/unistd.h | 2 | ||||
| -rw-r--r-- | arch/parisc/include/uapi/asm/unistd.h | 6 |
2 files changed, 6 insertions, 2 deletions
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h index fd1013ffae30..c2c2afb28941 100644 --- a/arch/parisc/include/asm/unistd.h +++ b/arch/parisc/include/asm/unistd.h @@ -4,6 +4,8 @@ #include <uapi/asm/unistd.h> +#define __NR_Linux_syscalls __NR_syscalls + #ifndef __ASSEMBLY__ #define SYS_ify(syscall_name) __NR_##syscall_name diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h index bb52e1211548..53cc748296a3 100644 --- a/arch/parisc/include/uapi/asm/unistd.h +++ b/arch/parisc/include/uapi/asm/unistd.h @@ -366,8 +366,10 @@ #define __NR_statx (__NR_Linux + 349) #define __NR_io_pgetevents (__NR_Linux + 350) -#define __NR_Linux_syscalls (__NR_io_pgetevents + 1) +#ifdef __KERNEL__ +#define __NR_syscalls 351 +#endif -#define LINUX_GATEWAY_ADDR 0x100 +#define LINUX_GATEWAY_ADDR 0x100 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */ |