ARM: zImage: make sure no GOTOFF relocs are used with .bss symbols

Browse source

To be able to relocate the .bss section at run time independently from
the rest of the code, we must make sure that no GOTOFF relocations are
used with .bss symbols.  This usually means that no global variables can
be marked static unless they're also const.

To enforce this, suffice to fail the build whenever a private symbol
is allocated to .bss and list those symbols for convenience.

The user_stack and user_stack_end labels in head.S were converted into
non exported symbols to remove false positives.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Tony Lindgren <tony@atomide.com>

...

This commit is contained in:

Nicolas Pitre 2011-04-27 14:54:39 -04:00 • committed by Nicolas Pitre

parent 8ea0de4b88

commit 8d7e4cc2c8

2 changed files with 17 additions and 4 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

15

arch/arm/boot/compressed/Makefile

View file

6

arch/arm/boot/compressed/head.S

View file