mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 07:04:00 +08:00
edd5cd4a94
Not all the world is an i386. Many architectures need 64-bit arguments to be aligned in suitable pairs of registers, and the original sys_sync_file_range(int, loff_t, loff_t, int) was therefore wasting an argument register for padding after the first integer. Since we don't normally have more than 6 arguments for system calls, that left no room for the final argument on some architectures. Fix this by introducing sys_sync_file_range2(int, int, loff_t, loff_t) which all fits nicely. In fact, ARM already had that, but called it sys_arm_sync_file_range. Move it to fs/sync.c and rename it, then implement the needed compatibility routine. And stop the missing syscall check from bitching about the absence of sys_sync_file_range() if we've implemented sys_sync_file_range2() instead. Tested on PPC32 and with 32-bit and 64-bit userspace on PPC64. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
124 lines
3.1 KiB
Bash
Executable File
124 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Check if current architecture are missing any function calls compared
|
|
# to i386.
|
|
# i386 define a number of legacy system calls that are i386 specific
|
|
# and listed below so they are ignored.
|
|
#
|
|
# Usage:
|
|
# syscallchk gcc gcc-options
|
|
#
|
|
|
|
ignore_list() {
|
|
cat << EOF
|
|
#include <asm/types.h>
|
|
#include <asm/unistd.h>
|
|
|
|
/* System calls for 32-bit kernels only */
|
|
#if BITS_PER_LONG == 64
|
|
#define __IGNORE_sendfile64
|
|
#define __IGNORE_ftruncate64
|
|
#define __IGNORE_truncate64
|
|
#define __IGNORE_stat64
|
|
#define __IGNORE_lstat64
|
|
#define __IGNORE_fstat64
|
|
#define __IGNORE_fcntl64
|
|
#define __IGNORE_fadvise64_64
|
|
#define __IGNORE_fstatat64
|
|
#define __IGNORE_fstatfs64
|
|
#define __IGNORE_statfs64
|
|
#endif
|
|
|
|
/* i386-specific or historical system calls */
|
|
#define __IGNORE_break
|
|
#define __IGNORE_stty
|
|
#define __IGNORE_gtty
|
|
#define __IGNORE_ftime
|
|
#define __IGNORE_prof
|
|
#define __IGNORE_lock
|
|
#define __IGNORE_mpx
|
|
#define __IGNORE_ulimit
|
|
#define __IGNORE_profil
|
|
#define __IGNORE_ioperm
|
|
#define __IGNORE_iopl
|
|
#define __IGNORE_idle
|
|
#define __IGNORE_modify_ldt
|
|
#define __IGNORE_ugetrlimit
|
|
#define __IGNORE_mmap2
|
|
#define __IGNORE_vm86
|
|
#define __IGNORE_vm86old
|
|
#define __IGNORE_set_thread_area
|
|
#define __IGNORE_get_thread_area
|
|
#define __IGNORE_madvise1
|
|
#define __IGNORE_oldstat
|
|
#define __IGNORE_oldfstat
|
|
#define __IGNORE_oldlstat
|
|
#define __IGNORE_oldolduname
|
|
#define __IGNORE_olduname
|
|
#define __IGNORE_umount2
|
|
#define __IGNORE_umount
|
|
#define __IGNORE_waitpid
|
|
#define __IGNORE_stime
|
|
#define __IGNORE_nice
|
|
#define __IGNORE_signal
|
|
#define __IGNORE_sigaction
|
|
#define __IGNORE_sgetmask
|
|
#define __IGNORE_sigsuspend
|
|
#define __IGNORE_sigpending
|
|
#define __IGNORE_ssetmask
|
|
#define __IGNORE_readdir
|
|
#define __IGNORE_socketcall
|
|
#define __IGNORE_ipc
|
|
#define __IGNORE_sigreturn
|
|
#define __IGNORE_sigprocmask
|
|
#define __IGNORE_bdflush
|
|
#define __IGNORE__llseek
|
|
#define __IGNORE__newselect
|
|
#define __IGNORE_create_module
|
|
#define __IGNORE_delete_module
|
|
#define __IGNORE_query_module
|
|
#define __IGNORE_get_kernel_syms
|
|
/* ... including the "new" 32-bit uid syscalls */
|
|
#define __IGNORE_lchown32
|
|
#define __IGNORE_getuid32
|
|
#define __IGNORE_getgid32
|
|
#define __IGNORE_geteuid32
|
|
#define __IGNORE_getegid32
|
|
#define __IGNORE_setreuid32
|
|
#define __IGNORE_setregid32
|
|
#define __IGNORE_getgroups32
|
|
#define __IGNORE_setgroups32
|
|
#define __IGNORE_fchown32
|
|
#define __IGNORE_setresuid32
|
|
#define __IGNORE_getresuid32
|
|
#define __IGNORE_setresgid32
|
|
#define __IGNORE_getresgid32
|
|
#define __IGNORE_chown32
|
|
#define __IGNORE_setuid32
|
|
#define __IGNORE_setgid32
|
|
#define __IGNORE_setfsuid32
|
|
#define __IGNORE_setfsgid32
|
|
|
|
/* sync_file_range had a stupid ABI. Allow sync_file_range2 instead */
|
|
#ifdef __NR_sync_file_range2
|
|
#define __IGNORE_sync_file_range
|
|
#endif
|
|
|
|
/* Unmerged syscalls for AFS, STREAMS, etc. */
|
|
#define __IGNORE_afs_syscall
|
|
#define __IGNORE_getpmsg
|
|
#define __IGNORE_putpmsg
|
|
#define __IGNORE_vserver
|
|
EOF
|
|
}
|
|
|
|
syscall_list() {
|
|
sed -n -e '/^\#define/ { s/[^_]*__NR_\([^[:space:]]*\).*/\
|
|
\#if !defined \(__NR_\1\) \&\& !defined \(__IGNORE_\1\)\
|
|
\#warning syscall \1 not implemented\
|
|
\#endif/p }' $1
|
|
}
|
|
|
|
(ignore_list && syscall_list ${srctree}/include/asm-i386/unistd.h) | \
|
|
$* -E -x c - > /dev/null
|