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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-03-16 17:20:53 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-04-06 16:30:37 -0400 |
| commit | 23ac79ff8011c290cc1755b8ab510df80e614db6 (patch) | |
| tree | 46d1ba2e1ca3f7ed0934a409540ec3e1b2f68bca /include/env_default.h | |
| parent | b3ede3317038abdd75c88f20d9b9685ab062b48a (diff) | |
common: env_embedded: allow fine placement of environment object
Commit 7653942b10e9e ("common/env_embedded.c: drop support for
CONFIG_SYS_USE_PPCENV") dropped the .ppcenv section which was
used in linking scripts to allow fine placement of embedded
environment sections.
This implies that GCC randomly places objects from env/embedded.o
and environment is not guaranteed to be located at the correct address:
04003df8 g F .text 00000038 mii_init
04004000 g O .text 00000004 env_size
04004004 g O .text 00002000 environment
04006004 g F .text 00000040 .hidden __lshrdi3
This patch restores this capability by allocating each object marked
with __UBOOT_ENV_SECTION__ into a different section. Hence
'environment' will be alone in .text.environment, allowing a
fine placement in u-boot.lds with:
. = DEFINED(env_offset) ? env_offset : .;
env/embedded.o (.text.environment)
Fixes: 7653942b10e9e ("common/env_embedded.c: drop support for CONFIG_SYS_USE_PPCENV")
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Diffstat (limited to 'include/env_default.h')
| -rw-r--r-- | include/env_default.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/env_default.h b/include/env_default.h index b574345af2..dd741315ba 100644 --- a/include/env_default.h +++ b/include/env_default.h @@ -11,7 +11,7 @@ #include <env_callback.h> #ifdef DEFAULT_ENV_INSTANCE_EMBEDDED -env_t environment __UBOOT_ENV_SECTION__ = { +env_t environment __UBOOT_ENV_SECTION__(environment) = { ENV_CRC, /* CRC Sum */ #ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT 1, /* Flags: valid */ |