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120 lines
3.8 KiB
C
120 lines
3.8 KiB
C
/*
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* Copyright (C) 1991 Gordon Irlam. All rights reserved.
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*/
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/*
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* Declaration of system calls for sparc trace generator.
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*/
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#if !defined(SYSCALLS_H)
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#define SYSCALLS_H 1
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/*
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* Imported declarations.
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*/
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#include "agent_msg.h"
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/*
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* Declaration of table containing system calls, and their parameter profile.
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*/
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/*
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* Words, such as the parameters and results of system calls, are capable of
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* being displayed in a number of different formats.
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*
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* fmt_none - indicates the absense of further arguments, functions that don't
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* return a value, etc.
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*
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* The function format_value(..) can be used to display a word in one of the
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* following formats.
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*
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* fmt_dec - a signed decimal number : 0, 21, -1
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* fmt_hex - a unsigned hex number : 0x0, 0x15, 0xffffffff
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* fmt_ptr - a pointer : NULL, 0x00000015, 0xffffffff
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* fmt_fd - a file descriptor : fd0, fd15, fd-1
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* fmt_signal - the name of a signal : 0, SIGTTIN, -1
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* fmt_error - the name of an error : 0, EISDIR, -1
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* fmt_open_flags - the flags to open : O_RDONLY, O_WRONLY|0x14, 0xffffffff
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* fmt_unknown - representation unknown : .., .., ..
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* fmt_string - if the null termintated string at word is printable displays
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* the string within quotes, otherwise displays like fmt_ptr
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* fmt_post_string - displays like fmt_ptr, value of word is also saved,
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* following the system call a printable string exists at
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* address word the address and the string will be displayed
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* fmt_data - only permitted in argument lists, next argument must be
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* format_data_size, if printable data exists at word having length
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* specified by the next argument it is printed, otherwise displays
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* like fmt_ptr
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* fmt_data_size - displays like FMT_SIZE
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* fmt_post_data - displays like fmt_ptr, value of word is also saved,
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* following call if a printable length delimited string exists
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* it will be displayed
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* fmt_post_data_size - displays like FMT_SIZE, value is saved for use as
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* length for fmt_post_data display format
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* fmt_string_array - word is the address of a null terminted array of strings
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* to be printed if possible
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*
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* Unlike the string formats which typically represent filenames it is not so
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* important that length delimited data be fully displayed. When printable,
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* it will be truncate much more harshly than the string formats.
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*
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* Only one item can be pending for display at the end of a system call.
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*
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* At a later date this program may be extended to display length delimited
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* data as a hex dump if it is not printable.
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*
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* The following macros are employed to make it easy to alter how a whole
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* class of values is displayed by changing their definition.
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*
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* FMT_STATUS - function calls that return 0 on success and -1 on error
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* FMT_FLAGS - bit field objects
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* FMT_SIZE - length of an object in bytes
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*/
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typedef enum fmt_type {fmt_none = 0, fmt_dec, fmt_hex, fmt_ptr, fmt_fd,
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fmt_signal, fmt_error, fmt_open_flags, fmt_unknown, fmt_string,
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fmt_post_string, fmt_data, fmt_post_data, fmt_data_size,
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fmt_post_data_size, fmt_string_array} fmt_type;
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#define FMT_STATUS fmt_none
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#define FMT_FLAGS fmt_hex
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#define FMT_SIZE fmt_dec
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typedef struct _spa_call_desc {
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char *name;
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fmt_type arg[NO_PARAMS];
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fmt_type result;
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} spa_call_desc;
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extern spa_call_desc spa_system_calls[];
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extern int no_system_calls;
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extern spa_call_desc spa_system_call_open_simple;
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#define SPA_DATA_SIZE_LIMIT 20
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#define SPA_STRING_SIZE_LIMIT 201
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#define SPA_ARRAY_SIZE_LIMIT 21
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/*
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* Declaration of table containing signal names.
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*/
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extern char *spa_signal_names[];
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extern int spa_no_signal_names;
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/*
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* Declaration of table containing error messages.
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*/
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char *spa_error_names[];
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extern int spa_no_error_names;
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#endif
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