avr32/lib: fix unaligned memcpy()
memcpy(p, unaligned, 4..) returns (p + num_of_unaligned_by_copied) instead of p because p is not preserved in the unaligned case. Noticed by Herbert Xu's superior parameter recycling coding technique which let the md4 self-test fail on avr32. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
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@ -24,8 +24,8 @@ memcpy:
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brne 1f
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/* At this point, "from" is word-aligned */
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2: sub r10, 4
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mov r9, r12
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2: mov r9, r12
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5: sub r10, 4
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brlt 4f
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3: ld.w r8, r11++
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@ -59,4 +59,13 @@ memcpy:
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st.b r12++, r8
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ld.ub r8, r11++
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st.b r12++, r8
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rjmp 2b
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mov r8, r12
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add pc, pc, r9
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sub r8, 1
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nop
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sub r8, 1
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nop
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sub r8, 1
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nop
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mov r9, r8
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rjmp 5b
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