mirror of
https://github.com/reactos/reactos.git
synced 2025-08-05 09:43:04 +00:00
910f27a570
Corrected bug in loader with mapping sections with zero VirtualSize Corrected bug in the vfat driver that accessed freed memory General cleanup of the vfat driver svn path=/trunk/; revision=857
233 lines
4.8 KiB
C
233 lines
4.8 KiB
C
/* $Id: interlck.c,v 1.6 1999/12/11 21:14:48 dwelch Exp $
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*
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* reactos/ntoskrnl/rtl/interlck.c
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*
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* FIXME: change decorated names when __fastcall will be available
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* (for both egcs 1.1.2 and gcc 2.95 FASTCALL == STDCALL).
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*/
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#include <reactos/config.h>
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#include <ntos.h>
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#include <internal/debug.h>
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#if 0
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LONG FASTCALL InterlockedIncrement(PLONG Addend)
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{
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LONG r;
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(*Addend)++;
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r = (*Addend);
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return(r);
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}
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LONG FASTCALL InterlockedDecrement(PLONG Addend)
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{
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LONG r;
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(*Addend)--;
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r = (*Addend);
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return(r);
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}
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#endif
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/**********************************************************************
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* FASTCALL: @InterlockedIncrement@0
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* STDCALL : _InterlockedIncrement@4
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*/
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#if 1
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LONG FASTCALL InterlockedIncrement (PLONG Addend);
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/*
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* FUNCTION: Increments a caller supplied variable of type LONG as an
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* atomic operation
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* ARGUMENTS;
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* Addend = Points to a variable whose value is to be increment
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* RETURNS: The incremented value
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*/
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__asm__("\n\t.global _InterlockedIncrement@4\n\t"
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"_InterlockedIncrement@4:\n\t"
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"pushl %ebp\n\t"
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"movl %esp,%ebp\n\t"
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"pushl %ebx\n\t"
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"movl $1,%eax\n\t"
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"movl 8(%ebp),%ebx\n\t"
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"xaddl %eax,(%ebx)\n\t"
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"incl %eax\n\t"
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"popl %ebx\n\t"
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"movl %ebp,%esp\n\t"
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"popl %ebp\n\t"
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"ret $4\n\t");
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#endif
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#if 0
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/*
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__asm__(
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#ifndef CONFIG_USE_FASTCALL
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".global _InterlockedIncrement@4\n"
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"\t_InterlockedIncrement@4:\n"
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"\tmovl 4(%esp), %ecx\n"
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#else
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".global @InterlockedIncrement@0\n"
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"\t@InterlockedIncrement@0:\n"
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#endif
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"\tmov $1, %eax\n"
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"\txadd %ecx, %eax\n"
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"\tinc %eax\n\n"
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#ifndef CONFIG_USE_FASTCALL
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"\tret $4\n"
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#endif
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);
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*/
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#endif
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/**********************************************************************
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* FASTCALL: @InterlockedDecrement@0
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* STDCALL : _InterlockedDecrement@4
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*/
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#if 1
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LONG FASTCALL InterlockedDecrement(PLONG Addend);
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__asm__("\n\t.global _InterlockedDecrement@4\n\t"
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"_InterlockedDecrement@4:\n\t"
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"pushl %ebp\n\t"
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"movl %esp,%ebp\n\t"
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"pushl %ebx\n\t"
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"movl $-1,%eax\n\t"
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"movl 8(%ebp),%ebx\n\t"
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"xaddl %eax,(%ebx)\n\t"
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"decl %eax\n\t"
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"popl %ebx\n\t"
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"movl %ebp,%esp\n\t"
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"popl %ebp\n\t"
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"ret $4\n\t");
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#endif
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/**********************************************************************
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* FASTCALL: @InterlockedExchange@0
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* STDCALL : _InterlockedExchange@8
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*/
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LONG
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FASTCALL
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InterlockedExchange (
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PLONG Target,
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LONG Value
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);
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__asm__(
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"\n\t.global _InterlockedExchange@8\n\t"
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"_InterlockedExchange@8:\n\t"
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"pushl %ebp\n\t"
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"movl %esp,%ebp\n\t"
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"pushl %ebx\n\t"
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"movl 12(%ebp),%eax\n\t"
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"movl 8(%ebp),%ebx\n\t"
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"xchgl %eax,(%ebx)\n\t"
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"popl %ebx\n\t"
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"movl %ebp,%esp\n\t"
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"popl %ebp\n\t"
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"ret $8\n\t"
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);
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/*
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__asm__(
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#ifndef CONFIG_USE_FASTCALL
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".global _InterlockedExchange@8\n"
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"_InterlockedExchange@8:\n"
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"\tmovl 4(%esp), %ecx\n"
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"\tmovl 8(%esp), %edx\n"
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#else
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".global @InterlockedExchange@0\n"
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"@InterlockedExchange@0:\n"
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#endif
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"\tmovl %ecx, %eax\n"
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"__InterlockedExchange_Loop:\n"
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"\tlock\n"
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"\tcmpxchg %ecx, %edx\n"
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"\tjne __InterlockedExchange_Loop\n"
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#ifndef CONFIG_USE_FASTCALL
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"\tmovl %ecx, 4(%esp)\n"
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"\tret $8\n"
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#else
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"\tret\n"
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#endif
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);
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*/
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/**********************************************************************
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* FASTCALL: @InterlockedExchangeAdd@0
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* STDCALL : _InterlockedExchangeAdd@8
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*/
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LONG
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FASTCALL
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InterlockedExchangeAdd (
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PLONG Addend,
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LONG Value
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);
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__asm__(
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"\n\t.global _InterlockedExchangeAdd@8\n\t"
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"_InterlockedExchangeAdd@8:\n\t"
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"movl 8(%esp),%eax\n\t"
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"movl 4(%esp),%ebx\n\t"
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"xaddl %eax,(%ebx)\n\t"
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"ret $8\n\t"
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);
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/*
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__asm__(
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#ifndef CONFIG_USE_FASTCALL
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".global _InterlockedExchangeAdd@8\n"
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"\t_InterlockedExchangeAdd@8:\n"
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"\tmovl 4(%esp), %ecx\n"
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"\tmovl 8(%esp), %edx\n"
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#else
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".global @InterlockedExchangeAdd@0\n"
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"\t@InterlockedExchangeAdd@0:\n"
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#endif
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"\txadd %edx, %ecx\n"
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"\tmovl %edx, %eax\n"
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#ifndef CONFIG_USE_FASTCALL
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"\tret $8\n"
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#else
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"\tret\n"
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#endif
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);
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*/
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/**********************************************************************
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* FASTCALL: @InterlockedCompareExchange@4
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* STDCALL : _InterlockedCompareExchange@12
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*/
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PVOID
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FASTCALL
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InterlockedCompareExchange (
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PVOID * Destination,
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PVOID Exchange,
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PVOID Comperand
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);
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__asm__(
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"\n\t.global _InterlockedCompareExchange@12\n\t"
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"_InterlockedCompareExchange@12:\n\t"
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"movl 12(%esp),%eax\n\t"
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"movl 8(%esp),%edx\n\t"
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"movl 4(%esp),%ebx\n\t"
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"cmpxchg %edx,(%ebx)\n\t"
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"movl %edx,%eax\n\t"
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"ret $12\n\t"
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);
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/*
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__asm__(
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#ifndef CONFIG_USE_FASTCALL
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".global _InterlockedCompareExchange@12\n"
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"\t_InterlockedCompareExchange@12:\n"
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"\tmovl 4(%esp), %ecx\n"
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"\tmovl 8(%esp), %edx\n"
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"\tmovl 12(%esp), %eax\n"
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#else
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".global @InterlockedCompareExchange@4\n"
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"\t@InterlockedCompareExchange@4:\n"
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"\tmovl 4(%esp), %eax\n"
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#endif
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"\tcmpxchg %ecx, %edx\n"
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#ifndef CONFIG_USE_FASTCALL
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"\tret $12\n"
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#else
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"\tret $4\n"
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#endif
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*/
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/* EOF */
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