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| author | Yatharth Kochar <yatharth.kochar@arm.com> | 2016-09-28 11:00:05 +0100 |
|---|---|---|
| committer | Yatharth Kochar <yatharth.kochar@arm.com> | 2016-09-28 14:03:47 +0100 |
| commit | 9c1dceb106474966211a3782f8e89e195b4c079c (patch) | |
| tree | fdac31949604c93e82fd9a535c07bce5baa9a826 /lib/psci/psci_main.c | |
| parent | bfd925139fdbc2e87979849907b34843aa326994 (diff) | |
| download | platform_external_arm-trusted-firmware-9c1dceb106474966211a3782f8e89e195b4c079c.tar.gz platform_external_arm-trusted-firmware-9c1dceb106474966211a3782f8e89e195b4c079c.tar.bz2 platform_external_arm-trusted-firmware-9c1dceb106474966211a3782f8e89e195b4c079c.zip | |
AArch32: Add `memcpy4` function in assembly
At present the `el3_entrypoint_common` macro uses `memcpy`
function defined in lib/stdlib/mem.c file, to copy data
from ROM to RAM for BL1. Depending on the compiler being
used the stack could potentially be used, in `memcpy`,
for storing the local variables. Since the stack is
initialized much later in `el3_entrypoint_common` it
may result in unknown behaviour.
This patch adds `memcpy4` function definition in assembly so
that it can be used before the stack is initialized and it
also replaces `memcpy` by `memcpy4` in `el3_entrypoint_common`
macro, to copy data from ROM to RAM for BL1.
Change-Id: I3357a0e8095f05f71bbbf0b185585d9499bfd5e0
Diffstat (limited to 'lib/psci/psci_main.c')
0 files changed, 0 insertions, 0 deletions