kernel/linux.git/arch/powerpc/boot/string.S, branch v6.6.132

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

powerpc: Fix boot wrapper memcmp() called with zero length argument

2008-10-21T04:17:48+00:00

I noticed, when trying to use, e.g., node = find_node_by_prop_value(prev, "booleanprop", "", 0)) to search for all nodes with a certain boolean property, that memcmp() returns garbage when comparing zero bytes. It should return zero. Signed-off-by: Benjamin Herrenschmidt

[POWERPC] Add memchr() to the bootwrapper

2007-10-12T04:13:44+00:00

This adds a memchr() implementation to the bootwrapper, which will be needed when libfdt is merged in. Signed-off-by: David Gibson Signed-off-by: Paul Mackerras

[POWERPC] Move bootwrapper's strchr() and strncmp() from .h to string.S

2007-09-13T15:33:19+00:00

Currently the bootwrapper has implementations of strchr() and strncmp(), but they're inlines in flatdevtree_env.h, rather than in string.S with all the rest of the string functions. This moves them to string.S. Signed-off-by: David Gibson Signed-off-by: Paul Mackerras

powerpc: Avoid unaligned loads and stores in boot memcpy code

2006-01-14T04:06:51+00:00

The 601 processor will generate an alignment exception for accesses which cross a page boundary. In the boot wrapper code, OF is still handling all exceptions, and it doesn't have an alignment exception handler that emulates the instruction and continues. This changes the memcpy and memmove routines in the boot wrapper to avoid doing unaligned accesses. If the source and destination are misaligned with respect to each other, we just copy one byte at a time. Signed-off-by: Paul Mackerras

powerpc: Move ppc64 boot wrapper code over to arch/powerpc

2005-11-16T02:52:21+00:00

This also extends the code to handle 32-bit ELF vmlinux files as well as 64-bit ones. This is sufficient for booting on new-world 32-bit powermacs (i.e. all recent machines). Signed-off-by: Paul Mackerras