1994-06-24 11:31:16 +00:00
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/* $Id$ */
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1990-08-31 18:22:53 +00:00
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/* maps from address to filename-lineno pair and reverse,
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maps from filename-lineno pair or address to scope.
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*/
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typedef unsigned int t_lineno;
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typedef long t_addr;
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#define ILL_ADDR ((t_addr) -1)
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1990-11-06 12:23:41 +00:00
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#define NO_ADDR ((t_addr) 0)
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1990-08-31 18:22:53 +00:00
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typedef struct pos {
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t_lineno lineno;
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char *filename;
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} t_position, *p_position;
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/* extern p_position get_position_from_addr(t_addr t);
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Returns a pointer to a structure containing the source position of the code
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at address 't'. 0 is returned if no source position could be found.
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*/
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extern p_position get_position_from_addr();
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/* extern t_addr get_addr_from_position(p_position p);
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Returns the address of the code at position 'p', or ILL_ADDR if it could
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not be found. If there is no symbolic information for the filename in
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position 'p', an error message will be given.
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*/
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extern t_addr get_addr_from_position();
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/* extern add_position_addr(char *filename, struct outname *n);
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Adds the ('filename','n'->on_desc),'n'->on_valu pair to the mapping information.
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*/
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extern add_position_addr();
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/* extern p_position print_position(t_addr a, int print_function);
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Prints position 'a' and returns it. If 'print_function' is set,
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an attempt is made to print the function name as well.
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*/
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extern p_position print_position();
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