diff options
author | Douglas Raillard <douglas.raillard@arm.com> | 2017-01-26 15:54:44 +0000 |
---|---|---|
committer | Douglas Raillard <douglas.raillard@arm.com> | 2017-02-06 17:01:39 +0000 |
commit | 32f0d3c6c3fb1fb9353ec0b82ddb099281b9328c (patch) | |
tree | 2df3f2994752b3c23e269920026a40a5b8d11bb6 /bl32/sp_min | |
parent | 308d359b260d888f024a2d26c76cd4a50789e432 (diff) |
Replace some memset call by zeromem
Replace all use of memset by zeromem when zeroing moderately-sized
structure by applying the following transformation:
memset(x, 0, sizeof(x)) => zeromem(x, sizeof(x))
As the Trusted Firmware is compiled with -ffreestanding, it forbids the
compiler from using __builtin_memset and forces it to generate calls to
the slow memset implementation. Zeromem is a near drop in replacement
for this use case, with a more efficient implementation on both AArch32
and AArch64.
Change-Id: Ia7f3a90e888b96d056881be09f0b4d65b41aa79e
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>
Diffstat (limited to 'bl32/sp_min')
-rw-r--r-- | bl32/sp_min/sp_min_main.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/bl32/sp_min/sp_min_main.c b/bl32/sp_min/sp_min_main.c index 02663a29..f34716ed 100644 --- a/bl32/sp_min/sp_min_main.c +++ b/bl32/sp_min/sp_min_main.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -45,6 +45,7 @@ #include <stdint.h> #include <string.h> #include <types.h> +#include <utils.h> #include "sp_min_private.h" /* Pointers to per-core cpu contexts */ @@ -203,7 +204,7 @@ void sp_min_warm_boot(void) smc_set_next_ctx(NON_SECURE); next_smc_ctx = smc_get_next_ctx(); - memset(next_smc_ctx, 0, sizeof(smc_ctx_t)); + zeromem(next_smc_ctx, sizeof(smc_ctx_t)); copy_cpu_ctx_to_smc_stx(get_regs_ctx(cm_get_context(NON_SECURE)), next_smc_ctx); |