as: Errors
1
1 1.7 Error and Warning Messages
1 ==============================
1
1 'as' may write warnings and error messages to the standard error file
1 (usually your terminal). This should not happen when a compiler runs
1 'as' automatically. Warnings report an assumption made so that 'as'
1 could keep assembling a flawed program; errors report a grave problem
1 that stops the assembly.
1
1 Warning messages have the format
1
1 file_name:NNN:Warning Message Text
1
11 (where NNN is a line number). If both a logical file name (⇒
'.file' File.) and a logical line number (⇒'.line' Line.) have
1 been given then they will be used, otherwise the file name and line
1 number in the current assembler source file will be used. The message
1 text is intended to be self explanatory (in the grand Unix tradition).
1
1 Note the file name must be set via the logical version of the '.file'
1 directive, not the DWARF2 version of the '.file' directive. For
1 example:
1
1 .file 2 "bar.c"
1 error_assembler_source
1 .file "foo.c"
1 .line 30
1 error_c_source
1
1 produces this output:
1
1 Assembler messages:
1 asm.s:2: Error: no such instruction: `error_assembler_source'
1 foo.c:31: Error: no such instruction: `error_c_source'
1
1 Error messages have the format
1
1 file_name:NNN:FATAL:Error Message Text
1
1 The file name and line number are derived as for warning messages.
1 The actual message text may be rather less explanatory because many of
1 them aren't supposed to happen.
1