mirror of
https://github.com/rhboot/gnu-efi
synced 2026-08-26 00:26:04 -04:00
7cfefa0919
Back in the past, I re-defined CHAR8 the same way UEFI defined it (on some platforms, some of the time, in an accidentally compiler-dependent way). This turns out to have some bad side effects in code written without thinking about integer promotion :/. Meanwhile, some issues were discovered with some of the string comparison functions here. This patch addresses all of those issue, whichever types you've got. Signed-off-by: Peter Jones <pjones@redhat.com>
131 lines
1.7 KiB
C
131 lines
1.7 KiB
C
/*++
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Copyright (c) 1999 Intel Corporation
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Module Name:
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EfiRtLib.h
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Abstract:
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EFI Runtime library functions
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Revision History
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--*/
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#include "efi.h"
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#include "efilib.h"
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#include "efirtlib.h"
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#ifndef __GNUC__
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#pragma RUNTIME_CODE(RtZeroMem)
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#endif
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VOID
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RUNTIMEFUNCTION
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RtZeroMem (
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IN VOID *Buffer,
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IN UINTN Size
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)
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{
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INT8 *pt;
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pt = Buffer;
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while (Size--) {
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*(pt++) = 0;
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}
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}
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#ifndef __GNUC__
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#pragma RUNTIME_CODE(RtSetMem)
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#endif
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VOID
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RUNTIMEFUNCTION
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RtSetMem (
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IN VOID *Buffer,
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IN UINTN Size,
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IN UINT8 Value
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)
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{
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INT8 *pt;
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pt = Buffer;
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while (Size--) {
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*(pt++) = Value;
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}
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}
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#ifndef __GNUC__
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#pragma RUNTIME_CODE(RtCopyMem)
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#endif
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VOID
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RUNTIMEFUNCTION
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RtCopyMem (
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IN VOID *Dest,
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IN CONST VOID *Src,
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IN UINTN len
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)
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{
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CHAR8 *d;
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CONST CHAR8 *s = Src;
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d = Dest;
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while (len--) {
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*(d++) = *(s++);
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}
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}
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#ifndef __GNUC__
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#pragma RUNTIME_CODE(RtCompareMem)
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#endif
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INTN
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RUNTIMEFUNCTION
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RtCompareMem (
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IN CONST VOID *Dest,
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IN CONST VOID *Src,
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IN UINTN len
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)
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{
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CONST unsigned char *d = Dest, *s = Src;
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while (len--) {
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if (*d != *s) {
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return *d - *s;
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}
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d += 1;
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s += 1;
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}
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return 0;
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}
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#ifndef __GNUC__
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#pragma RUNTIME_CODE(RtCompareGuid)
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#endif
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INTN
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RUNTIMEFUNCTION
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RtCompareGuid (
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IN EFI_GUID *Guid1,
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IN EFI_GUID *Guid2
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)
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/*++
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Routine Description:
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Compares to GUIDs
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Arguments:
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Guid1 - guid to compare
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Guid2 - guid to compare
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Returns:
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= 0 if Guid1 == Guid2
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--*/
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{
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return RtCompareMem(Guid1, Guid2, sizeof(*Guid1));
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}
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