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Assembler File Names and Line Numbers |
There are two ways of locating a line in the input file (or files) and
either may be used in reporting error messages. One way refers to a line
number in a physical file; the other refers to a line number in a
"logical" file. See Error and Warning Messages.
Physical files are those files named in the command line given
to as
.
Logical files are simply names declared explicitly by assembler
directives; they bear no relation to physical files. Logical file names help
error messages reflect the original source file, when as
source
is itself synthesized from other files. as
understands the
#
directives emitted by the gcc
preprocessor. See also
.file
.