0a6a1f1d05
This brings our tree to NetBSD 7.0, as found on -current on the 10-10-2015. This updates: - LLVM to 3.6.1 - GCC to GCC 5.1 - Replace minix/commands/zdump with usr.bin/zdump - external/bsd/libelf has moved to /external/bsd/elftoolchain/ - Import ctwm - Drop sprintf from libminc Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
38 lines
836 B
ArmAsm
38 lines
836 B
ArmAsm
/* $NetBSD: sbrk.S,v 1.1 2014/09/03 19:34:26 matt Exp $ */
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#include "SYS.h"
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: sbrk.S,v 1.1 2014/09/03 19:34:26 matt Exp $")
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#endif /* LIBC_SCCS && !lint */
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.hidden _C_LABEL(__curbrk)
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.globl _C_LABEL(__curbrk)
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#ifdef WEAK_ALIAS
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WEAK_ALIAS(sbrk, _sbrk)
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#endif
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ENTRY(_sbrk)
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#ifdef __PIC__
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l.or r8,r9,r0
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PIC_GOTSETUP(r6)
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l.or r9,r8,r0
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l.movhi r5,gotoffhi(_C_LABEL(__curbrk))
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l.ori r5,r5,gotofflo(_C_LABEL(__curbrk))
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l.add r5,r5,r6
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#else
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l.movhi r5,hi(_C_LABEL(__curbrk))
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l.ori r5,r5,lo(_C_LABEL(__curbrk)) # r5 = old break;
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#endif
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l.lwz r6,0(r5) # r6 = old break, r5 = &curbrk
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l.add r3,r3,r6
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_DOSYSCALL(break) # break(new_break)
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l.bf _C_LABEL(__cerror)
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l.nop
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l.sw 0(r5),r3 # record new break
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l.or r11,r6,r0 # set return value
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l.jr lr
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l.nop
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END(_sbrk)
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