Commit Graph

16 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
Nobuhiro Iwamatsu
c9935c9925 sh: Fix compile error on lowlevel_init file
lowlevel_init of SH was corrected to use the write/readXX macro.
However, there was a problem that was not able to be compiled partially.
This patch corrected this.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2009-01-16 10:22:27 +09:00
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
Jean-Christophe PLAGNIOL-VILLARD
6d0f6bcf33 rename CFG_ macros to CONFIG_SYS
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-10-18 21:54:03 +02:00
Jean-Christophe PLAGNIOL-VILLARD
0cf4fd3cf8 rename environment.c in env_embedded.c to reflect is functionality
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-09-10 22:48:01 +02:00
Nobuhiro Iwamatsu
9e23fe0560 sh: Fix SH-boards compile error
By Cleanup out-or-tree building for some boards (.depend)
(commit:c8a3b109f07f02342d097b30908965f7261d9f15)
because filse ware changed, some SH-boards have compile error.
I revised this problem.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2008-07-08 12:03:24 +09:00
Wolfgang Denk
c8a3b109f0 Cleanup out-or-tree building for some boards (.depend)
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-07-02 23:49:18 +02:00
Wolfgang Denk
a30cc5a340 Cleanup: fix out-of-tree building for some boards
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-07-02 23:38:50 +02:00
Wolfgang Denk
461fa68d20 Cleanup: replace hard-wired $(AR) 'crv' settings by $(ARFLAGS)
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-07-02 23:00:14 +02:00
Wolfgang Denk
64134f0112 Fix linker scripts: add NOLOAD atribute to .bss/.sbss sections
With recent toolchain versions, some boards would not build because
or errors like this one (here for ocotea board when building with
ELDK 4.2 beta):
ppc_4xx-ld: section .bootpg [fffff000 -> fffff23b] overlaps section .bss [fffee900 -> fffff8ab]

For many boards, the .bss section is big enough that it wraps around
at the end of the address space (0xFFFFFFFF), so the problem will not
be visible unless you use a 64 bit tool chain for development. On
some boards however, changes to the code size (due to different
optimizations) we bail out with section overlaps like above.

The fix is to add the NOLOAD attribute to the .bss and .sbss
sections, telling the linker that .bss does not consume any space in
the image.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-01-12 20:31:39 +01:00
Wolfgang Denk
61fb15c516 Fix coding style issues; update CHANGELOG.
Signed-off-by: Wolfgang Denk <wd@denx.de>
2007-12-27 01:52:50 +01:00
Nobuhiro Iwamatsu
047375bfa4 sh: Update MS7750SE01 platform
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2007-09-23 02:19:24 +09:00
Nobuhiro Iwamatsu
69df3c4da0 sh: MS7750SE support.
This adds support for the Hitachi MS7750SE.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2007-05-13 21:01:03 +09:00