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added info on warning functions &c

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Ken Raeburn
1994-04-19 01:20:04 +00:00
parent dcdf81bb64
commit ed307a20aa
1 changed files with 55 additions and 0 deletions
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gas/doc/internals.texi
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@ -173,3 +173,58 @@ of that target over to use the low-level BFD interface.
Currently, all COFF targets use one of the two BFD interfaces, so the Currently, all COFF targets use one of the two BFD interfaces, so the
non-BFD code can be removed. Eventually, all should be converted to non-BFD code can be removed. Eventually, all should be converted to
using one COFF back end, which uses the high-level BFD interface. using one COFF back end, which uses the high-level BFD interface.
@node Foo
@section Foo
@subsection Warning and Error Messages
@deftypefun int had_warnings (void)
@deftypefunx int had_errors (void)
Returns non-zero if any warnings or errors, respectively, have been
printed during this invocation.
@end deftypefun
@deftypefun void as_perror (const char *@var{gripe}, const char *@var{filename})
Displays a BFD or system error, then clears the error status.
@end deftypefun
@deftypefun void as_tsktsk (const char *@var{format}, ...)
@deftypefunx void as_warn (const char *@var{format}, ...)
@deftypefunx void as_bad (const char *@var{format}, ...)
@deftypefunx void as_fatal (const char *@var{format}, ...)
These functions display messages about something amiss with the input
file, or internal problems in the assembler itself. The current file
name and line number are printed, followed by the supplied message,
formatted using @code{vfprintf}, and a final newline.
@end deftypefun
@deftypefun void as_warn_where (char *@var{file}, unsigned int @var{line}, const char *@var{format}, ...)
@deftypefunx void as_bad_where (char *@var{file}, unsigned int @var{line}, const char *@var{format}, ...)
These variants permit specification of the file name and line number,
and are used when problems are detected when reprocessing information
saved away when processing some earlier part of the file. For example,
fixups are processed after all input has been read, but messages about
fixups should refer to the original filename and line number that they
are applicable to.
@end deftypefun
@deftypefun void fprint_value (FILE *@var{file}, valueT @var{val})
@deftypefunx void sprint_value (char *@var{buf}, valueT @var{val})
These functions are helpful for converting a @code{valueT} value into
printable format, in case it's wider than modes that @code{*printf} can
handle. If the type is narrow enough, a decimal number will be
produced; otherwise, it will be in hexadecimal (FIXME: currently without
`0x' prefix). The value itself is not examined to make this
determination.
@end deftypefun