Subversion Repositories or1k

/*

 * Stolen from glibc-2.2.2 by David Schleef 

 */

.text

.align 4

.globl _dl_linux_resolver

.globl _dl_linux_resolve

.type   _dl_linux_resolve,@function

_dl_linux_resolve:

// We need to save the registers used to pass parameters, and register 0,

// which is used by _mcount; the registers are saved in a stack frame.

        stwu 1,-64(1)

        stw 0,12(1)

        stw 3,16(1)

        stw 4,20(1)

// The code that calls this has put parameters for 'fixup' in r12 and r11.

        mr 3,12

        stw 5,24(1)

        mr 4,11

        stw 6,28(1)

        mflr 0

// We also need to save some of the condition register fields.

        stw 7,32(1)

        stw 0,48(1)

        stw 8,36(1)

        mfcr 0

        stw 9,40(1)

        stw 10,44(1)

        stw 0,8(1)

        bl _dl_linux_resolver@local

// 'fixup' returns the address we want to branch to.

        mtctr 3

// Put the registers back...

        lwz 0,48(1)

        lwz 10,44(1)

        lwz 9,40(1)

        mtlr 0

        lwz 8,36(1)

        lwz 0,8(1)

        lwz 7,32(1)

        lwz 6,28(1)

        mtcrf 0xFF,0

        lwz 5,24(1)

        lwz 4,20(1)

        lwz 3,16(1)

        lwz 0,12(1)

// ...unwind the stack frame, and jump to the PLT entry we updated.

        addi 1,1,64

        bctr

.LFE2:

        .size _dl_linux_resolve,.LFE2-_dl_linux_resolve

#if 0

        pusha                           /* preserve all regs */

        lea     0x20(%esp),%eax         /* eax = tpnt and reloc_entry params */

        pushl   4(%eax)                 /* push copy of reloc_entry param */

        pushl   (%eax)                  /* push copy of tpnt param */

#ifdef __PIC__

        call    .L24

.L24:

        popl    %ebx

        addl    $_GLOBAL_OFFSET_TABLE_+[.-.L24],%ebx

        movl _dl_linux_resolver@GOT(%ebx),%ebx  /* eax = resolved func */

        call *%ebx

#else

        call _dl_linux_resolver

#endif

        movl    %eax,0x28(%esp)         /* store func addr over original

                                         * tpnt param */

        addl    $0x8,%esp               /* remove copy parameters */

        popa                            /* restore regs */

        ret     $4                      /* jump to func removing original

                                         * reloc_entry param from stack */

#endif