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Diffstat (limited to 'gdb/rdi-share/endian.h')
-rw-r--r-- | gdb/rdi-share/endian.h | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/gdb/rdi-share/endian.h b/gdb/rdi-share/endian.h deleted file mode 100644 index 3d32d9a6e60..00000000000 --- a/gdb/rdi-share/endian.h +++ /dev/null @@ -1,125 +0,0 @@ -/* - * Copyright (C) 1995 Advanced RISC Machines Limited. All rights reserved. - * - * This software may be freely used, copied, modified, and distributed - * provided that the above copyright notice is preserved in all copies of the - * software. - */ - -/* -*-C-*- - * - * $Revision$ - * $Date$ - * - * - * endian.h - target endianness independent read/write primitives. - */ - -#ifndef angel_endian_h -#define angel_endian_h - -/* - * The endianness of the data being processed needs to be known, but - * the host endianness is not required (since the data is constructed - * using bytes). At the moment these are provided as macros. This - * gives the compiler freedom in optimising individual calls. However, - * if space is at a premium then functions should be provided. - * - * NOTE: These macros assume that the data has been packed in the same format - * as the packing on the build host. If this is not the case then - * the wrong addresses could be used when dealing with structures. - * - */ - -/* - * For all the following routines the target endianness is defined by the - * following boolean definitions. - */ -#define BE (1 == 1) /* TRUE : big-endian */ -#define LE (1 == 0) /* FALSE : little-endian */ - -/* - * The following type definitions are used by the endianness converting - * macros. - */ -typedef unsigned char U8; -typedef U8 *P_U8; -typedef const U8 *CP_U8; - -typedef unsigned short U16; -typedef U16 *P_U16; - -typedef unsigned int U32; -typedef U32 *P_U32; - -/* - * If the endianness of the host and target are known (fixed) and the same - * then the following macro definitions can be used. These just directly copy - * the data. - * - * #define READ(e,a) (a) - * #define WRITE(e,a,v) ((a) = (v)) - * #define PREAD(e,a) (a) - * #define PWRITE(e,a,v) (*(a) = (v)) - */ - -/* - * These macros assume that a byte (char) is 8bits in size, and that the - * endianness is not important when reading or writing bytes. - */ -#define PUT8(a,v) (*((P_U8)(a)) = (U8)(v)) -#define PUT16LE(a,v) (PUT8(a,((v) & 0xFF)), \ - PUT8((((P_U8)(a)) + sizeof(char)),((v) >> 8))) -#define PUT16BE(a,v) (PUT8(a,((v) >> 8)), \ - PUT8((((P_U8)(a)) + sizeof(char)),((v) & 0xFF))) -#define PUT32LE(a,v) (PUT16LE(a,v), \ - PUT16LE((((P_U8)(a)) + sizeof(short)),((v) >> 16))) -#define PUT32BE(a,v) (PUT16BE(a,((v) >> 16)), \ - PUT16BE((((P_U8)(a)) + sizeof(short)),v)) - -#define GET8(a) (*((CP_U8)(a))) -#define GET16LE(a) (GET8(a) | (((U16)GET8(((CP_U8)(a)) + sizeof(char))) << 8)) -#define GET16BE(a) ((((U16)GET8(a)) << 8) | GET8(((CP_U8)(a)) + sizeof(char))) -#define GET32LE(a) (GET16LE(a) | \ - (((U32)GET16LE(((CP_U8)(a)) + sizeof(short))) << 16)) -#define GET32BE(a) ((((U32)GET16BE(a)) << 16) | \ - GET16BE(((CP_U8)(a)) + sizeof(short))) - -/* - * These macros simplify the code in respect to reading and writing the - * correct size data when dealing with endianness. "e" is TRUE if we are - * dealing with big-endian data, FALSE if we are dealing with little-endian. - */ - -/* void WRITE(int endianness, void *address, unsigned value); */ - -#define WRITE16(e,a,v) ((e) ? PUT16BE(&(a),v) : PUT16LE(&(a),v)) -#define WRITE32(e,a,v) ((e) ? PUT32BE(&(a),v) : PUT32LE(&(a),v)) -#define WRITE(e,a,v) ((sizeof(v) == sizeof(char)) ? \ - PUT8(&(a),v) : ((sizeof(v) == sizeof(short)) ? \ - WRITE16(e,a,v) : WRITE32(e,a,v))) - -/* unsigned READ(int endianness, void *address) */ -#define READ16(e,a) ((e) ? GET16BE(&(a)) : GET16LE(&(a))) -#define READ32(e,a) ((e) ? GET32BE(&(a)) : GET32LE(&(a))) -#define READ(e,a) ((sizeof(a) == sizeof(char)) ? \ - GET8((CP_U8)&(a)) : ((sizeof(a) == sizeof(short)) ? \ - READ16(e,a) : READ32(e,a))) - -/* void PWRITE(int endianness, void *address, unsigned value); */ -#define PWRITE16(e,a,v) ((e) ? PUT16BE(a,v) : PUT16LE(a,v)) -#define PWRITE32(e,a,v) ((e) ? PUT32BE(a,v) : PUT32LE(a,v)) -#define PWRITE(e,a,v) ((sizeof(v) == sizeof(char)) ? \ - PUT8(a,v) : ((sizeof(v) == sizeof(short)) ? \ - PWRITE16(e,a,v) : PWRITE32(e,a,v))) - -/* unsigned PREAD(int endianness, void *address) */ -#define PREAD16(e,a) ((e) ? GET16BE(a) : GET16LE(a)) -#define PREAD32(e,a) ((e) ? GET32BE(a) : GET32LE(a)) -#define PREAD(e,a) ((sizeof(*(a)) == sizeof(char)) ? \ - GET8((CP_U8)a) : ((sizeof(*(a)) == sizeof(short)) ? \ - PREAD16(e,a) : PREAD32(e,a))) - -#endif /* !defined(angel_endian_h) */ - -/* EOF endian.h */ |