parisc: Unbreak bootloader due to gcc-7 optimizations

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gcc-7 optimizes the byte-wise accesses of get_unaligned_le32() into
word-wise accesses if the 32-bit integer output_len is declared as
external. This panics then the bootloader since we don't have the
unaligned access fault trap handler installed during boot time.

Avoid this optimization by declaring output_len as byte-aligned and thus
unbreak the bootloader code.

Additionally, compile the boot code optimized for size.

Signed-off-by: Helge Deller <deller@gmx.de>

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Helge Deller 2017-09-22 21:57:11 +02:00

parent af21b01d11

commit 8c031ba63f

2 changed files with 3 additions and 2 deletions

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2

arch/parisc/boot/compressed/Makefile

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3

arch/parisc/boot/compressed/misc.c

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