u-boot/board/freescale/mpc7448hpc2
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
..
asm_init.S rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
config.mk FSL: Move board/mpc7448hpc2 under board/freescale 2008-03-25 23:00:36 +01:00
Makefile Cleanup out-or-tree building for some boards (.depend) 2008-07-02 23:49:18 +02:00
mpc7448hpc2.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
tsi108_init.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
u-boot.lds Fix all linker script to handle all rodata sections 2009-03-20 22:39:12 +01:00