| brk.S (114313) | brk.S (115279) |
|---|---|
| 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 --- 24 unchanged lines hidden (view full) --- 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#if defined(SYSLIBC_SCCS) && !defined(lint) 38 .asciz "@(#)brk.s 5.2 (Berkeley) 12/17/90" 39#endif /* SYSLIBC_SCCS and not lint */ 40#include <machine/asm.h> | 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 --- 24 unchanged lines hidden (view full) --- 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#if defined(SYSLIBC_SCCS) && !defined(lint) 38 .asciz "@(#)brk.s 5.2 (Berkeley) 12/17/90" 39#endif /* SYSLIBC_SCCS and not lint */ 40#include <machine/asm.h> |
| 41__FBSDID("$FreeBSD: head/lib/libc/amd64/sys/brk.S 114313 2003-04-30 18:16:33Z peter $"); | 41__FBSDID("$FreeBSD: head/lib/libc/amd64/sys/brk.S 115279 2003-05-24 17:35:23Z peter $"); |
| 42 43#include "SYS.h" 44 45 .globl HIDENAME(curbrk) 46 .globl HIDENAME(minbrk) 47ENTRY(_brk) 48 pushq %rdi 49 jmp ok 50 51ENTRY(brk) 52 pushq %rdi 53 movq %rdi,%rax | 42 43#include "SYS.h" 44 45 .globl HIDENAME(curbrk) 46 .globl HIDENAME(minbrk) 47ENTRY(_brk) 48 pushq %rdi 49 jmp ok 50 51ENTRY(brk) 52 pushq %rdi 53 movq %rdi,%rax |
| 54 cmpq %rax,PIC_GOT(HIDENAME(minbrk)) | 54#ifdef PIC 55 movq PIC_GOT(HIDENAME(minbrk)),%rdx 56 cmpq %rax,(%rdx) 57#else 58 cmpq %rax,HIDENAME(minbrk)(%rip) 59#endif |
| 55 jbe ok | 60 jbe ok |
| 56 movq PIC_GOT(HIDENAME(minbrk)),%rdi | 61#ifdef PIC 62 movq (%rdx),%rdi 63#else 64 movq HIDENAME(minbrk)(%rip),%rdi 65#endif |
| 57ok: 58 movq $SYS_break,%rax 59 KERNCALL 60 jb err 61 movq 0(%rsp),%rax | 66ok: 67 movq $SYS_break,%rax 68 KERNCALL 69 jb err 70 movq 0(%rsp),%rax |
| 62 movq %rax,PIC_GOT(HIDENAME(curbrk)) | 71#ifdef PIC 72 movq PIC_GOT(HIDENAME(curbrk)),%rdx 73 movq %rax,(%rdx) 74#else 75 movq %rax,HIDENAME(curbrk)(%rip) 76#endif |
| 63 movq $0,%rax 64 popq %rdi 65 ret 66err: | 77 movq $0,%rax 78 popq %rdi 79 ret 80err: |
| 67 jmp PIC_PLT(HIDENAME(cerror)) | 81#ifdef PIC 82 movq PIC_GOT(HIDENAME(cerror)),%rdx 83 jmp *%rdx 84#else 85 jmp HIDENAME(cerror) 86#endif |