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binder_entry() must save all scratch registers to make the process

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of binding functions completely transparent.
This commit is contained in:
chopps 1994-08-03 15:57:54 +00:00
parent 80ba474bd2
commit b6d669a07c
3 changed files with 15 additions and 9 deletions
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8
gnu/usr.bin/ld/arch/m68k/mdprologue.S
View File

@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: mdprologue.S,v 1.5 1994/06/13 05:28:43 chopps Exp $
* $Id: mdprologue.S,v 1.6 1994/08/03 15:57:54 chopps Exp $
*/
/*
@ -57,7 +57,8 @@ _rtl:
.globl _binder_entry
_binder_entry:
movl sp@+,a0 | grab return address (within PLT)
movml a0-a1/d0-d1,sp@- | preserve scratch registers
movl sp@(16),a0 | grab return address (within PLT)
moveq #0,d0
movw a0@,d0 | get function index
movel d0,sp@-
@ -65,9 +66,10 @@ _binder_entry:
movel a0,sp@-
jbsr _binder,a1 | relocate function address
addql #8,sp
movel d0,sp@- | push function address on stack
movel d0,sp@(16) | put function address on stack
| movel #0x80000004,d0 | CC_EXTPURGE | CC_IPURGE
| trap #12 | cachectl
movml sp@+,a0-a1/d0-d1 | restore scratch registers
rts | jump into function (via address on stack)
.globl __cachectl

8
gnu/usr.bin/ld/m68k/mdprologue.S
View File

@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: mdprologue.S,v 1.5 1994/06/13 05:28:43 chopps Exp $
* $Id: mdprologue.S,v 1.6 1994/08/03 15:57:54 chopps Exp $
*/
/*
@ -57,7 +57,8 @@ _rtl:
.globl _binder_entry
_binder_entry:
movl sp@+,a0 | grab return address (within PLT)
movml a0-a1/d0-d1,sp@- | preserve scratch registers
movl sp@(16),a0 | grab return address (within PLT)
moveq #0,d0
movw a0@,d0 | get function index
movel d0,sp@-
@ -65,9 +66,10 @@ _binder_entry:
movel a0,sp@-
jbsr _binder,a1 | relocate function address
addql #8,sp
movel d0,sp@- | push function address on stack
movel d0,sp@(16) | put function address on stack
| movel #0x80000004,d0 | CC_EXTPURGE | CC_IPURGE
| trap #12 | cachectl
movml sp@+,a0-a1/d0-d1 | restore scratch registers
rts | jump into function (via address on stack)
.globl __cachectl

8
libexec/ld.aout_so/arch/m68k/mdprologue.S
View File

@ -27,7 +27,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: mdprologue.S,v 1.5 1994/06/13 05:28:43 chopps Exp $
* $Id: mdprologue.S,v 1.6 1994/08/03 15:57:54 chopps Exp $
*/
/*
@ -57,7 +57,8 @@ _rtl:
.globl _binder_entry
_binder_entry:
movl sp@+,a0 | grab return address (within PLT)
movml a0-a1/d0-d1,sp@- | preserve scratch registers
movl sp@(16),a0 | grab return address (within PLT)
moveq #0,d0
movw a0@,d0 | get function index
movel d0,sp@-
@ -65,9 +66,10 @@ _binder_entry:
movel a0,sp@-
jbsr _binder,a1 | relocate function address
addql #8,sp
movel d0,sp@- | push function address on stack
movel d0,sp@(16) | put function address on stack
| movel #0x80000004,d0 | CC_EXTPURGE | CC_IPURGE
| trap #12 | cachectl
movml sp@+,a0-a1/d0-d1 | restore scratch registers
rts | jump into function (via address on stack)
.globl __cachectl