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c pre-processor

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@ -182,6 +182,23 @@ Often, you will want to enable the debugger `gdb`. Do this:
gcc -g main.s gcc -g main.s
``` ```
### The C Pre-Processor
If you want `gcc` to run your code through the C pre-processor
(for handing `#include` for example), name your assembly language
source code files with a capital S. So, on Linux:
`gcc main.s`
Will not go through the C pre-processor but
`gcc main.S`
will.
See the [Apple Silicon](./more/apple_silicon/README.md) chapter for
more information.
### Programs called by the "Compiler" ### Programs called by the "Compiler"
Using gcc to "compile" a program causes the following to be called Using gcc to "compile" a program causes the following to be called