Commit Graph

6 Commits

Author SHA1 Message Date
Pavel Pisa
e7ed720699 boards/arm/lpc17xx_40xx/lx_cpu/: increase sections alignment and fix .ARM.exidx overlap.
The ARMv7 specifies minimal alignment to be 8 for EABI. Ensure
that sections are placed with even greater minimal alignment.
Sections final alignment should be adjusted according
to alignment of their inputs, but for some reasons some
combinations lead to .ARM.exidx overlap with .data.
When alignment is increased then the direct fetch of the
fill location

  _eronly = ABSOLUTE(.);

does not match with final LMA placement of the .data section.
Use constructs which should result in matching .data LMA
address for all cases

  _eronly = ABSOLUTE(.);

Signed-off-by: Pavel Pisa <ppisa@pikron.com>
2021-01-29 10:40:03 -08:00
Gregory Nutt
2925c28f8f All linker scripts: Preface all _edata defininitions with . = ALIGN(4). Otherwise, the last bytes in the .data section may not be initialized properly. Also convert all linker scripts indent in units of 8-spaces to units of 4-spaces. 2019-09-15 17:22:16 -06:00
Gregory Nutt
0bd60c3722 All linker scripts: Preface all _ebss defininitions with . = ALIGN(4). Otherwise, the last bytes in the .bss section will not be initialized properly. Also convert all linker scripts that use TABs to spaces. 2019-09-15 15:27:58 -06:00
Gregory Nutt
bbbe9d85c5 Move EXIDX assignments inside of braces so that we can be assure that the symbols have the correct alignment. Suggested by Daniel P. Volpato
Squashed commit of the following:

    Some scripts use TABs, others spaced.  Make usage consistent.
    Move __exidx_end assignment inside of brackets.
    Remove old __exidx_end assignment.
    Move __exidx_start assignment inside of brackets.
    Remove old __exidx_start assignment
2019-09-12 09:57:50 -06:00
Gregory Nutt
50f9e26d5d Modify all a few more linker scripts missed in 415e3d3448, probably because they were created after 2eb4fe5ffb. 2019-09-11 21:10:51 -06:00
Pavel Pisa
350ba5105c boards/arm/lpc17xx_40xx/lx_cpu: Add support for the PIKRON LX_CPU board. 2019-08-30 07:42:13 -06:00