mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-23 02:05:57 +01:00
a59c773124
32-bit ones likely copy paste error from coming from arm v7. Also create userland/arch/aarch64/inline_asm/int_32.c: Also create aarch64_ldaxr_stlxr.cpp and start documenting LDAXR and STLXR.
28 lines
601 B
C
28 lines
601 B
C
/* https://cirosantilli.com/linux-kernel-module-cheat#gcc-inline-assembly-register-variables */
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#include <assert.h>
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#include <inttypes.h>
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int main(void) {
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register uint64_t x0 __asm__ ("x0");
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register uint64_t x1 __asm__ ("x1");
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uint64_t new_x0;
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uint64_t new_x1;
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{
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x0 = 1;
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x1 = 2;
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__asm__ (
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"add %[x0], x0, #1;"
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"add %[x1], x1, #1;"
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: [x0] "+r" (x0),
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[x1] "+r" (x1)
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:
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:
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);
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new_x0 = x0;
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new_x1 = x1;
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}
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assert(new_x0 == 2);
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assert(new_x1 == 3);
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}
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