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https://github.com/cirosantilli/linux-kernel-module-cheat.git
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a90271c6af
Split userland/arch/<arch>/c/ into inline_asm and intrinsics, and move programs that don't match either up.
18 lines
370 B
C
18 lines
370 B
C
/* https://github.com/cirosantilli/linux-kernel-module-cheat#gcc-inline-assembly-early-clobbers */
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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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uint64_t in = 1;
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uint64_t out;
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__asm__ (
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"add %[out], %[in], 1;"
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"add %[out], %[in], 1;"
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: [out] "=&r" (out)
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: [in] "r" (in)
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:
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);
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assert(out == 2);
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}
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