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This chapter describes command-line options available in all versions of the GNU assembler; see section Machine Dependent Features, for options specific to particular machine architectures.
If you are invoking as
via the GNU C compiler,
you can use the `-Wa' option to pass arguments through to the assembler.
The assembler arguments must be separated from each other (and the `-Wa')
by commas. For example:
gcc -c -g -O -Wa,-alh,-L file.c |
This passes two options to the assembler: `-alh' (emit a listing to standard output with high-level and assembly source) and `-L' (retain local symbols in the symbol table).
Usually you do not need to use this `-Wa' mechanism, since many compiler command-line options are automatically passed to the assembler by the compiler. (You can call the GNU compiler driver with the `-v' option to see precisely what options it passes to each compilation pass, including the assembler.)
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