Commit graph

6 commits

Author SHA1 Message Date
Jean-Christophe PLAGNIOL-VILLARD
3931a375de sh: unify linker script
all sh boards use the same cpu linker script so move it to cpu/$(CPU)

that could be overwrite in following order
SOC
BOARD
via the corresponding config.mk

tested on r2dplus

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2009-07-08 11:43:15 +09:00
Jean-Christophe PLAGNIOL-VILLARD
236aad8758 sh: make the linker scripts more generic
currently we need to sync the linker script enty and TEXT_BASE manualy
and the reloc_dst is based on it

instead provide it now from the ldflags

tested on r2dplus

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2009-07-08 11:43:15 +09:00
Trent Piepho
f62fb99941 Fix all linker script to handle all rodata sections
A recent gcc added a new unaligned rodata section called '.rodata.str1.1',
which needs to be added the the linker script.  Instead of just adding this
one section, we use a wildcard ".rodata*" to get all rodata linker section
gcc has now and might add in the future.

However, '*(.rodata*)' by itself will result in sub-optimal section
ordering.  The sections will be sorted by object file, which causes extra
padding between the unaligned rodata.str.1.1 of one object file and the
aligned rodata of the next object file.  This is easy to fix by using the
SORT_BY_ALIGNMENT command.

This patch has not be tested one most of the boards modified.  Some boards
have a linker script that looks something like this:

*(.text)
. = ALIGN(16);
*(.rodata)
*(.rodata.str1.4)
*(.eh_frame)

I change this to:

*(.text)
. = ALIGN(16);
*(.eh_frame)
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))

This means the start of rodata will no longer be 16 bytes aligned.
However, the boundary between text and rodata/eh_frame is still aligned to
16 bytes, which is what I think the real purpose of the ALIGN call is.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
2009-03-20 22:39:12 +01:00
Jean-Christophe PLAGNIOL-VILLARD
f7e78f3b74 sh: use write{8,16,32} in all lowlevel_init
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2009-01-16 10:22:27 +09:00
Jean-Christophe PLAGNIOL-VILLARD
e443077962 sh: lowlevel_init coding style cleanup
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2009-01-16 10:22:26 +09:00
Nobuhiro Iwamatsu
acd3e30d09 sh: r7780mp: Moved r7780mp board to board/renesas
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2008-10-31 23:04:25 +09:00