openwrtv4/target
John Crispin 01ca7a34f0 brcm63xx/lzma-loader: fix O32 ABI conformance
According to the calling convention of the o32 ABI the caller
function must reserve stack space for $a0-$a3 registers in case
the callee needs to save its arguments.

The assembly code of the loader does not reserve stack space for
these registers thus when the 'loader_main' function needs to save
its arguments, those will be stored in the 'workspace' area instead
of the stack.

Because the workspace area is also used by other part of the code, the
saved register values gets overwritten and this often leads to failed
kernel boots.

Fix the code to reserve stack space for the registers to avoid this
error.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
[noltari: apply the fix for brcm63xx too]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

SVN-Revision: 48979
2016-03-10 19:10:54 +00:00
..
imagebuilder images imagebuilder: Allow to add sanitized extra name 2016-01-03 14:44:56 +00:00
linux brcm63xx/lzma-loader: fix O32 ABI conformance 2016-03-10 19:10:54 +00:00
sdk sdk: add base repository fallback 2016-01-12 09:25:45 +00:00
toolchain targets: Use configured distribution name for SDK, IB, and Toolchain tarball names 2016-01-03 14:44:42 +00:00
Config.in toolchain: add support of ARC architecture 2015-11-10 12:03:59 +00:00
Makefile target: do not make target/*/install depend on target/*/compile - removes one redundant kernel build dir call on target/install 2012-06-06 17:24:05 +00:00