#include <errno.h>
#include "syscalls.h"
.text
.align 4
.global mmap
.type mmap,@function
mmap:
/* Save registers and setup stack frame. */
stmg %r6,%r15,48(%r15)
lgr %r1,%r15
lg %r0,8(%r15) /* Load eos. */
aghi %r15,-208 /* Buy stack space. */
stg %r1,0(%r15) /* Store back chain. */
stg %r0,8(%r15) /* Store eos. */
/* Store parameters on stack, because old_mmap
takes only one parameter: a pointer to the parameter area. */
mvc 200(8,%r15),368(%r15) /* Move 'offset'. */
lgfr %r6,%r6
stg %r6,192(%r15) /* Store 'fd'. */
lgfr %r5,%r5
stg %r5,184(%r15) /* Store 'flags'. */
lgfr %r4,%r4
stg %r4,176(%r15) /* Store 'prot'. */
stg %r3,168(%r15) /* Store 'length'. */
stg %r2,160(%r15) /* Store 'start'. */
la %r2,160(%r15) /* Load address of parameter list. */
/* Do the system call trap. */
svc __NR_mmap
lg %r15,0(%r15) /* Load back chain. */
lmg %r6,%r15,48(%r15) /* Load registers. */
j __unified_syscall
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