1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 22 unchanged lines hidden (view full) --- 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#if defined(SYSLIBC_RCS) && !defined(lint) 38 .text |
39 .asciz "$FreeBSD: head/lib/libc/amd64/sys/sbrk.S 87006 2001-11-27 20:51:26Z jhb $" |
40#endif /* SYSLIBC_RCS and not lint */ 41 42#include "SYS.h" 43 44 .globl CNAME(end) 45 .globl HIDENAME(minbrk) 46 .globl HIDENAME(curbrk) 47 --- 7 unchanged lines hidden (view full) --- 55 movl 4(%esp),%ecx 56 PIC_PROLOGUE 57 movl PIC_GOT(HIDENAME(curbrk)),%edx 58 movl (%edx),%eax 59 PIC_EPILOGUE 60 testl %ecx,%ecx 61 jz back 62 addl %eax,4(%esp) |
63 mov $SYS_break,%eax |
64 KERNCALL 65 jb err 66 PIC_PROLOGUE 67 movl PIC_GOT(HIDENAME(curbrk)),%edx 68 movl (%edx),%eax 69 addl %ecx,(%edx) 70 PIC_EPILOGUE 71back: --- 4 unchanged lines hidden (view full) --- 76 77#else /* !PIC */ 78 79 movl 4(%esp),%ecx 80 movl HIDENAME(curbrk),%eax 81 testl %ecx,%ecx 82 jz back 83 addl %eax,4(%esp) |
84 mov $SYS_break,%eax |
85 KERNCALL 86 jb err 87 movl HIDENAME(curbrk),%eax 88 addl %ecx,HIDENAME(curbrk) 89back: 90 ret 91err: 92 jmp HIDENAME(cerror) 93#endif /* PIC */ |