Commit 3016b421 authored by Hyok S. Choi's avatar Hyok S. Choi Committed by Linus Torvalds
Browse files

[PATCH] frv: define MMU mode specific syscalls as 'cond_syscall' and clean up unneeded macros 



For some architectures, a few syscalls are not linked in noMMU mode.  In
that case, the MMU depending syscalls are needed to be defined as
'cond_syscall'.  For example, ARM architecture selectively links sys_mlock
by the mode configuration.

In case of FRV, it has been managed by #ifdef CONFIG_MMU macro in
arch/frv/kernel/entry.S.  However these conditional macros are just
duplicates if they were defined as cond_syscall.  Compilation test is done
with FRV toolchains for both of MMU and noMMU mode.

Signed-off-by: default avatarHyok S. Choi <hyok.choi@samsung.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 21a26d49

arch/frv/kernel/entry.S

+10 −16
Original line number Diff line number Diff line
@@ -1170,12 +1170,6 @@ __syscall_badsys: 
# syscall vector table

#

###############################################################################

#ifdef CONFIG_MMU

#define __MMU(X) X

#else

#define __MMU(X) sys_ni_syscall

#endif



	.section .rodata

ALIGN

	.globl		sys_call_table
@@ -1305,7 +1299,7 @@ sys_call_table: 
	.long sys_newuname

	.long sys_ni_syscall	/* old "cacheflush" */

	.long sys_adjtimex

	.long __MMU(sys_mprotect) /* 125 */

	.long sys_mprotect	/* 125 */

	.long sys_sigprocmask

	.long sys_ni_syscall	/* old "create_module" */

	.long sys_init_module
@@ -1324,16 +1318,16 @@ sys_call_table: 
	.long sys_getdents

	.long sys_select

	.long sys_flock

	.long __MMU(sys_msync)

	.long sys_msync

	.long sys_readv		/* 145 */

	.long sys_writev

	.long sys_getsid

	.long sys_fdatasync

	.long sys_sysctl

	.long __MMU(sys_mlock)		/* 150 */

	.long __MMU(sys_munlock)

	.long __MMU(sys_mlockall)

	.long __MMU(sys_munlockall)

	.long sys_mlock		/* 150 */

	.long sys_munlock

	.long sys_mlockall

	.long sys_munlockall

	.long sys_sched_setparam

	.long sys_sched_getparam   /* 155 */

	.long sys_sched_setscheduler
@@ -1343,7 +1337,7 @@ sys_call_table: 
	.long sys_sched_get_priority_min  /* 160 */

	.long sys_sched_rr_get_interval

	.long sys_nanosleep

	.long __MMU(sys_mremap)

	.long sys_mremap

	.long sys_setresuid16

	.long sys_getresuid16	/* 165 */

	.long sys_ni_syscall	/* for vm86 */
@@ -1398,8 +1392,8 @@ sys_call_table: 
	.long sys_setfsuid		/* 215 */

	.long sys_setfsgid

	.long sys_pivot_root

	.long __MMU(sys_mincore)

	.long __MMU(sys_madvise)

	.long sys_mincore

	.long sys_madvise

	.long sys_getdents64	/* 220 */

	.long sys_fcntl64

	.long sys_ni_syscall	/* reserved for TUX */
@@ -1437,7 +1431,7 @@ sys_call_table: 
	.long sys_epoll_create

	.long sys_epoll_ctl	/* 255 */

	.long sys_epoll_wait

 	.long __MMU(sys_remap_file_pages)

 	.long sys_remap_file_pages

 	.long sys_set_tid_address

 	.long sys_timer_create

 	.long sys_timer_settime		/* 260 */

kernel/sys_ni.c

+12 −0
Original line number Diff line number Diff line
@@ -120,3 +120,15 @@ cond_syscall(sys32_sysctl); 
cond_syscall(ppc_rtas);

cond_syscall(sys_spu_run);

cond_syscall(sys_spu_create);



/* mmu depending weak syscall entries */

cond_syscall(sys_mprotect);

cond_syscall(sys_msync);

cond_syscall(sys_mlock);

cond_syscall(sys_munlock);

cond_syscall(sys_mlockall);

cond_syscall(sys_munlockall);

cond_syscall(sys_mincore);

cond_syscall(sys_madvise);

cond_syscall(sys_mremap);

cond_syscall(sys_remap_file_pages);

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