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====== Replace The Macro In The GCC Link Script ======

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Run <wrap cmd>gcc -E -D <wrap cmdp>**BOOTDIR**=$(pwd)</wrap> -P -x c <wrap cmdp>boot/arch/riscv/boot0.lds</wrap></wrap>

  * ''-E'' Preprocess only; do not compile, assemble or link.
  * ''-D'' Define macro.
  * ''-P'' Inhibit generation of linemarkers in the output from the preprocessor.((ref:>https://gcc.gnu.org/onlinedocs/gcc/Preprocessor-Options.html#index-P))
  * ''-x c'' Specify the language of the following input files is ''c''.((note:>run <wrap cmd>gcc %%--%%help | grep "\-x"</wrap>.))

==== Demo ====

<codeprism lang=Bash cmd=true cmdout=2,4-7,9-12 hl=6,11>
pwd
/home/source/workspace/riscv-flare
sed -n '9,12p' boot/arch/riscv/boot0.lds 
        .head   :
        {
                BOOTDIR/boot0_head.o    (.rodata)
        }
gcc -E -D BOOTDIR=$(pwd) -P -x c boot/arch/riscv/boot0.lds | sed -n '8,11p'
 .head :
 {
  /home/source/workspace/riscv-flare/boot0_head.o (.rodata)
 }
</codeprism>

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