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https://github.com/cirosantilli/linux-kernel-module-cheat.git
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c8c4f89854
Previously had wonky line pointer in asm_main. New interface simpler and more portable. Add tests for ASSERT_EQ_ and family in arm and aarch64, previously on x86_64. ASSERT_EQ_ and family in ARM can now either take =123, =addr or var, before this the = was added on macros so var was not possible. Define the main function directly in assembly, the C driver was useless.
33 lines
586 B
ArmAsm
33 lines
586 B
ArmAsm
/* https://github.com/cirosantilli/linux-kernel-module-cheat#arm-nop-instruction */
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#include <lkmc.h>
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LKMC_PROLOGUE
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/* Disassembles as:
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*
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* ....
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* nop {0}
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* ....
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*
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* TODO what is the `{0}`?
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*/
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nop
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/* Disassembles as:
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*
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* ....
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* nop ; (mov r0, r0)
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* ....
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*/
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mov r0, r0
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/* Disassemble as mov. TODO Why not as nop as in `mov r0, r0`?
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* Do they have any effect?
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*/
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mov r1, r1
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mov r8, r8
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/* And there are other nops as well? Disassembles as `and`. */
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and r0, r0, r0
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LKMC_EPILOGUE
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