mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-23 02:05:57 +01:00
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.
32 lines
552 B
ArmAsm
32 lines
552 B
ArmAsm
/* https://github.com/cirosantilli/linux-kernel-module-cheat#arm-ldmia-instruction */
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#include <lkmc.h>
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LKMC_PROLOGUE
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/* Save sp before push. */
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mov r4, sp
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/* Push. */
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mov r5, 1
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mov r6, 2
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push {r5, r6}
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/* Save sp after push. */
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mov r5, sp
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/* Restore. */
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mov r7, 0
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mov r8, 0
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pop {r7, r8}
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LKMC_ASSERT_EQ(r7, =1)
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LKMC_ASSERT_EQ(r8, =2)
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/* Check that stack pointer moved down by 8 bytes
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* (2 registers x 4 bytes each).
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*/
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sub r4, r5
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LKMC_ASSERT_EQ(r4, =8)
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LKMC_EPILOGUE
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