syscall-i386-linux-1.0.s

开放源码实时操作系统源码.

#define SYS_rt_sigaction	174
#define SYS_rt_sigprocmask	175
#define SYS_rt_sigpending	176
#define SYS_rt_sigtimedwait	177
#define SYS_rt_sigqueueinfo	178
#define SYS_rt_sigsuspend	179
#define SYS_pread		180
#define SYS_pwrite		181
#define SYS_chown		182
#define SYS_getcwd		183
#define SYS_capget		184
#define SYS_capset		185
#define SYS_sigaltstack	        186
#define SYS_sendfile		187
#define SYS_getpmsg		188
#define SYS_putpmsg		189
#define SYS_vfork		190
#define SYS_ugetrlimit		191
#define SYS_mmap2		192
#define SYS_truncate64		193
#define SYS_ftruncate64	        194
#define SYS_stat64		195
#define SYS_lstat64		196
#define SYS_fstat64		197
#define SYS_lchown32		198
#define SYS_getuid32		199
#define SYS_getgid32		200
#define SYS_geteuid32		201
#define SYS_getegid32		202
#define SYS_setreuid32		203
#define SYS_setregid32		204
#define SYS_getgroups32	        205
#define SYS_setgroups32         206
#define SYS_fchown32		207
#define SYS_setresuid32         208
#define SYS_getresuid32         209
#define SYS_setresgid32         210
#define SYS_getresgid32         211
#define SYS_chown32		212
#define SYS_setuid32		213
#define SYS_setgid32		214
#define SYS_setfsuid32		215
#define SYS_setfsgid32		216
#define SYS_pivot_root		217
#define SYS_mincore		218
#define SYS_madvise		219
#define SYS_madvise1		219
#define SYS_getdents64		220
#define SYS_fcntl64		221


#define NAME(X) cyg_hal_sys_##X 
#define END(X)  1: ; .type NAME(X),@function ; .size NAME(X),1b - NAME(X)

#define SYSCALL0(x)                             \
        .globl NAME(x) ;                        \
                                                \
NAME(x):                                        \
                                                \
        push %ebx;                              \
        lea     SYS_##x, %eax;                  \
        int $0x80;                              \
        pop %ebx;                               \
        ret;                                    \
                                                \
        END(x)

#define SYSCALL1(x)                             \
        .globl NAME(x) ;                        \
                                                \
NAME(x):                                        \
                                                \
        push %ebx;                              \
        mov 8(%esp), %ebx;                      \
        lea     SYS_##x, %eax;                  \
        int $0x80;                              \
        pop %ebx;                               \
        ret;                                    \
                                                \
    END(x)

#define SYSCALL2(x)                             \
        .globl NAME(x) ;                        \
                                                \
NAME(x):                                        \
                                                \
        push %ebx;                              \
        mov 8(%esp), %ebx;                      \
        mov 12(%esp), %ecx;                     \
        lea     SYS_##x, %eax;                  \
        int $0x80;                              \
        pop %ebx;                               \
        ret;                                    \
                                                \
    END(x)

#define SYSCALL3(x)                             \
        .globl NAME(x) ;                        \
                                                \
NAME(x):                                        \
                                                \
        push %ebx;                              \
        mov 8(%esp), %ebx;                      \
        mov 12(%esp), %ecx;                     \
        mov 16(%esp), %edx;                     \
        lea     SYS_##x, %eax;                  \
        int $0x80;                              \
        pop %ebx;                               \
        ret;                                    \
        END(x)


#define SYSCALL4(x)                             \
        .globl NAME(x) ;                        \
                                                \
NAME(x):                                        \
                                                \
        push %ebx;                              \
        push %esi;                              \
        mov 12(%esp), %ebx;                     \
        mov 16(%esp), %ecx;                     \
        mov 20(%esp), %edx;                     \
        mov 24(%esp), %esi;                     \
        lea     SYS_##x, %eax;                  \
        int $0x80;                              \
        pop %esi;                               \
        pop %ebx;                               \
        ret;                                    \
        END(x)

#define SYSCALL5(x)                             \
        .globl NAME(x) ;                        \
                                                \
NAME(x):                                        \
                                                \
        push %ebx;                              \
        push %esi;                              \
        push %edi;                              \
        mov 16(%esp), %ebx;                     \
        mov 20(%esp), %ecx;                     \
        mov 24(%esp), %edx;                     \
        mov 28(%esp), %esi;                     \
        mov 32(%esp), %edi;                     \
        lea     SYS_##x, %eax;                  \
        int $0x80;                              \
        pop %edi;                               \
        pop %esi;                               \
        pop %ebx;                               \
        ret;                                    \
        END(x)


//==========================================================================
// Initial asm stuff for all functions.
        .text
        .align  2

SYSCALL1(exit)
SYSCALL0(fork)
SYSCALL3(read)
SYSCALL3(write)
SYSCALL3(open)
SYSCALL1(close)
SYSCALL3(waitpid)
SYSCALL2(creat)
SYSCALL2(link)
SYSCALL1(unlink)
SYSCALL3(execve)
SYSCALL1(chdir)
SYSCALL1(time)
SYSCALL2(chmod)
SYSCALL3(lseek)
SYSCALL0(getpid)
SYSCALL0(getuid)
SYSCALL1(nice)
SYSCALL2(kill)
SYSCALL1(dup)
SYSCALL1(pipe)
SYSCALL1(brk)
SYSCALL3(ioctl)
SYSCALL3(fcntl)
SYSCALL1(chroot)
SYSCALL2(dup2)
SYSCALL3(sigaction)
SYSCALL2(gettimeofday)
SYSCALL1(mmapx)
SYSCALL2(socketcall)
SYSCALL3(setitimer)
SYSCALL3(sigprocmask)
SYSCALL5(_newselect)
SYSCALL3(readv)
SYSCALL3(writev)
SYSCALL1(fdatasync)
SYSCALL2(getcwd)
SYSCALL2(access)
SYSCALL3(readdir)
SYSCALL2(oldlstat)
SYSCALL2(oldfstat)
SYSCALL2(oldstat)
SYSCALL2(newlstat)
SYSCALL2(newfstat)
SYSCALL2(newstat)        
SYSCALL2(mkdir)
SYSCALL5(ipc)

// ----------------------------------------------------------------------------
// Special support for returning from a signal handler. In theory no special
// action is needed, but with some versions of the kernel on some
// architectures that is not good enough. Instead returning has to happen
// via another system call.         

        .align 16
        .global cyg_hal_sys_restore_rt
cyg_hal_sys_restore_rt:
        movl    $SYS_rt_sigreturn, %eax
        int     $0x80
1:              
        .type __restore_rt,@function
        .size __restore_rt,1b - __restore_rt
                
        .align 8
        .global cyg_hal_sys_restore
cyg_hal_sys_restore:
        popl    %eax
        movl    $SYS_sigreturn, %eax
        int     $0x80
1:              
        .type __restore,@function
        .size __restore,1b - __restore