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Diffstat (limited to 'include/sparc64/niagara/rtems/asm.h')
-rw-r--r-- | include/sparc64/niagara/rtems/asm.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/include/sparc64/niagara/rtems/asm.h b/include/sparc64/niagara/rtems/asm.h new file mode 100644 index 0000000000..f4448b03a5 --- /dev/null +++ b/include/sparc64/niagara/rtems/asm.h @@ -0,0 +1,103 @@ +/** + * @file + * + * @brief Address the Problems Caused by Incompatible Flavor of + * Assemblers and Toolsets + * + * This include file attempts to address the problems + * caused by incompatible flavors of assemblers and + * toolsets. It primarily addresses variations in the + * use of leading underscores on symbols and the requirement + * that register names be preceded by a %. + * + * NOTE: The spacing in the use of these macros + * is critical to them working as advertised. + */ + +/* + * COPYRIGHT: + * + * This file is based on similar code found in newlib available + * from ftp.cygnus.com. The file which was used had no copyright + * notice. This file is freely distributable as long as the source + * of the file is noted. + */ + +#ifndef _RTEMS_ASM_H +#define _RTEMS_ASM_H + +/* + * Indicate we are in an assembly file and get the basic CPU definitions. + */ + +#ifndef ASM +#define ASM +#endif +#ifndef __ASM__ +#define __ASM__ +#endif + +#include <rtems/score/cpuopts.h> +#include <rtems/score/cpu.h> + +/* + * Recent versions of GNU cpp define variables which indicate the + * need for underscores and percents. If not using GNU cpp or + * the version does not support this, then you will obviously + * have to define these as appropriate. + */ + +/* XXX __USER_LABEL_PREFIX__ and __REGISTER_PREFIX__ do not work on gcc 2.7.0 */ +/* XXX The following ifdef magic fixes the problem but results in a warning */ +/* XXX when compiling assembly code. */ + +#ifndef __USER_LABEL_PREFIX__ +#define __USER_LABEL_PREFIX__ _ +#endif + +#ifndef __REGISTER_PREFIX__ +#define __REGISTER_PREFIX__ +#endif + +#include <rtems/concat.h> + +/* Use the right prefix for global labels. */ + +#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) + +/* Use the right prefix for registers. */ + +#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) + +/* + * define macros for all of the registers on this CPU + * + * EXAMPLE: #define d0 REG (d0) + */ + +/* + * Define macros to handle section beginning and ends. + */ + + +#define BEGIN_CODE_DCL .text +#define END_CODE_DCL +#define BEGIN_DATA_DCL .data +#define END_DATA_DCL +#define BEGIN_CODE .text +#define END_CODE +#define BEGIN_DATA +#define END_DATA +#define BEGIN_BSS +#define END_BSS +#define END + +/* + * Following must be tailor for a particular flavor of the C compiler. + * They may need to put underscores in front of the symbols. + */ + +#define PUBLIC(sym) .globl SYM (sym) +#define EXTERN(sym) .globl SYM (sym) + +#endif |