sandbox: use sanitizer unwind for dump_stack if available ...

The sanitize unwind looks pretty and is just a function call away if we
are compiling with KASAN or UBSAN. Use it if available.

Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

kbuild: move asm-offsets.h rule to ./Kbuild ...

Currently, MIPS is the only architecture that needs
include/generated/asm-offsets.h, but we have got ./Kbuild file now.

It is a good reason to move asm-offsets.h rule from arch/mips/Makefile
to ./Kbuild and add dummy asm-offsets.c for the other architectures.
asm-offsets.h would be useful for all the architectures.

This commit does not implement include/generated/bounds.h,
but if necessary, it is easy to implement it.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

sandbox: remove duplicate barebox.lds.S ...

today we have the same linker script in board and lib
and only the board linker script is used

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

rename U-Boot-v2 project to barebox ...

This has been done with the following script:

find -path ./.git -prune -o -type f -print0 | xargs -0 -r sed -i \
	-e 's/u2boot/barebox/g' \
	-e 's/U2Boot/barebox/g' \
	-e 's/U-boot V2/barebox/g' \
	-e 's/u-boot v2/barebox/g' \
	-e 's/U-Boot V2/barebox/g' \
	-e 's/U-Boot-v2/barebox/g' \
	-e 's/U_BOOT/BAREBOX/g' \
	-e 's/UBOOT/BAREBOX/g' \
	-e 's/uboot/barebox/g' \
	-e 's/u-boot/barebox/g' \
	-e 's/u_boot/barebox/g' \
	-e 's/U-Boot/barebox/g' \
	-e 's/U-boot/barebox/g' \
	-e 's/U-BOOT/barebox/g'

find -path ./.git -prune -o \( -name "*u-boot*" -o -name "*uboot*" -o -name "*u_boot*" \) -print0 | \
	xargs -0 -r rename 's/u[-_]?boot/barebox/'

It needs some manual fixup following in the next patch

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Sandbox: Fix make system ...

Sandbox compilation failed with:

gcc -Wp,-MD,arch/sandbox/lib/.tap.o.d  -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/4.3.1/include -I/usr/include -Iinclude -P -Wall    -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(tap)"  -D"KBUILD_MODNAME=KBUILD_STR(tap)" -c -o arch/sandbox/lib/tap.o arch/sandbox/lib/tap.c
In file included from /usr/include/bits/socket.h:32,
                 from /usr/include/sys/socket.h:36,
                 from arch/sandbox/lib/tap.c:29:
/usr/include/limits.h:125:26: error: limits.h: No such file or directory

/usr/include/limits.h uses the next_include directive
This was because of the -nostdinc

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Doxygen cleanups ...

- Remove trailing whitespaces from doxygen files
- escape '<' '>' with backslashes. Otherwise Doxygen interpretes them as
  html tags

Signed-off-by: Carsten Schlote <schlote@vahanus.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

do not sleep if read gets EAGAIN. Must be some testing leftover

Add the possibility to have an architecture specific ctrlc() function. ...

This allows us to return immediately in ctrlc() on sandbox and thus
not slow down network througput.

[sandbox] fix read for buffers of zero length ...

This patch fixes the read function for the linux sandbox if a buffer
of zero length should be read. The error handling introduced in
6574529 detects a false positive if the
length is zero.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

[sandbox] add error handling to read ...

This patch adds propper error handling to the linux' read functions.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

[sparse] define functions static, use NULL as NULL pointer ...

fixes:
arch/sandbox/board/hostfile.c:32:9: warning: symbol 'hf_read' was not declared. Should it be static?
arch/sandbox/board/hostfile.c:43:9: warning: symbol 'hf_write' was not declared. Should it be static?

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

[sandbox] fix stdin and stdout fd for sandbox console ...

u_boot_register_console uses the wrong filedescriptors for in and out
the are swapped. This patch fixes this problem and uses fileno instead.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

[sandbox] HACK: add variable _SDA_BASE_ to main, to please linker ...

This patch is a _CRUDE_HACK_ the linker complains about the missing
symbol _SDA_BASE_ on powerpc, so git it to him to please him and
finally link the sandbx.

LD      uboot
/usr/lib/gcc/powerpc-linux-gnu/4.2.3/../../../../lib/crt1.o:(.rodata+0x0): undefined reference to `_SDA_BASE_'

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

[sandbox] use C99 initializers ...

This patch uses C99 initializers to initialize the timeout in linux_tstc()

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

saving added docu

some doc added to uboot's simlator feature. Not finished yet.

arch/linux -> arch/sandbox