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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.
19 lines
383 B
ArmAsm
19 lines
383 B
ArmAsm
/* https://github.com/cirosantilli/linux-kernel-module-cheat#data-processing-instructions
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*
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* Reverse byte order.
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*/
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#include <lkmc.h>
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LKMC_PROLOGUE
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/* All bytes in register. */
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ldr r0, =0x11223344
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rev r1, r0
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LKMC_ASSERT_EQ(r1, =0x44332211)
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/* Groups of 16-bits. */
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ldr r0, =0x11223344
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rev16 r1, r0
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LKMC_ASSERT_EQ(r1, =0x22114433)
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LKMC_EPILOGUE
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