Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*
 * Save registers before calling assembly functions. This avoids
 * disturbance of register allocation in some inline assembly constructs.
 * Copyright 2001,2002 by Andi Kleen, SuSE Labs.
 * Subject to the GNU public license, v.2. No warranty of any kind.
 */

        #include <linux/linkage.h>
        #include <asm/dwarf2.h>
        #include <asm/calling.h>                        
        #include <asm/rwlock.h>
                
        /* rdi: arg1 ... normal C conventions. rax is saved/restored. */        
        .macro thunk name,func
        .globl \name
\name:  
        CFI_STARTPROC
        SAVE_ARGS
        call \func
        jmp  restore
        CFI_ENDPROC
        .endm

        /* rdi: arg1 ... normal C conventions. rax is passed from C. */         
        .macro thunk_retrax name,func
        .globl \name
\name:  
        CFI_STARTPROC
        SAVE_ARGS
        call \func
        jmp  restore_norax
        CFI_ENDPROC
        .endm
        

        .section .sched.text
#ifdef CONFIG_RWSEM_XCHGADD_ALGORITHM
        thunk rwsem_down_read_failed_thunk,rwsem_down_read_failed
        thunk rwsem_down_write_failed_thunk,rwsem_down_write_failed
        thunk rwsem_wake_thunk,rwsem_wake
        thunk rwsem_downgrade_thunk,rwsem_downgrade_wake
#endif  
        
        thunk __down_failed,__down
        thunk_retrax __down_failed_interruptible,__down_interruptible
        thunk_retrax __down_failed_trylock,__down_trylock
        thunk __up_wakeup,__up

#ifdef CONFIG_TRACE_IRQFLAGS
        thunk trace_hardirqs_on_thunk,trace_hardirqs_on
        thunk trace_hardirqs_off_thunk,trace_hardirqs_off
#endif

#ifdef CONFIG_DEBUG_LOCK_ALLOC
        thunk lockdep_sys_exit_thunk,lockdep_sys_exit
#endif
        
        /* SAVE_ARGS below is used only for the .cfi directives it contains. */
        CFI_STARTPROC
        SAVE_ARGS
restore:
        RESTORE_ARGS
        ret     
        CFI_ENDPROC
        
        CFI_STARTPROC
        SAVE_ARGS
restore_norax:  
        RESTORE_ARGS 1
        ret
        CFI_ENDPROC