The option -o filename specifies the name of the output file produced by the compiler.
The option -o- redirects output to the standard output stream when used with the -c or -S options.
Default
If you do not specify a -o option, the compiler names the output file
according to the conventions described by the following table.
Table 1-1 Compiling without the -o option
| Compiler option |
Action |
Usage notes |
-c |
Produces an object file whose name defaults to the name of
the input file with the filename extension .o |
- |
-S |
Produces an output file whose name defaults to the name of
the input file with the filename extension .s |
- |
-E |
Writes output from the preprocessor to the standard output
stream |
- |
| (No option) |
Produces temporary object files, then automatically calls
the linker to produce an executable image with the default name of
a.out |
None of -o, -c, -E
or -S is specified on the command
line |
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