• Trent Piepho's avatar
    Fix all linker script to handle all rodata sections · f62fb999
    Trent Piepho authored
    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: default avatarTrent Piepho <xyzzy@speakeasy.org>
    f62fb999
Name
Last commit
Last update
..
Makefile Loading commit data...
config.mk Loading commit data...
imx31_phycore.c Loading commit data...
lowlevel_init.S Loading commit data...
u-boot.lds Loading commit data...