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rmodule: use program.ld for linking

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Bring rmodule linking into the common linking method.
The __rmodule_entry symbol was removed while using
a more common _start symbol. The rmodtool will honor
the entry point found within the ELF header. Add
ENV_RMODULE so that one can distinguish the environment
when generating linker scripts for rmodules. Lastly,
directly use program.ld for the rmodule.ld linker script.

BUG=chrome-os-partner:44827
BRANCH=None
TEST=Built rambi and analyzed the relocatable ramstage,
     sipi_vector, and smm rmodules.

Change-Id: Iaa499eb229d8171272add9ee6d27cff75e7534ac
Signed-off-by: Aaron Durbin <adubin@chromium.org>
Reviewed-on: http://review.coreboot.org/11517
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Aaron Durbin 2015-09-05 12:59:26 -05:00
commit dde7629e9c
14 changed files with 64 additions and 125 deletions
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4
src/include/rmodule.h
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@ -73,9 +73,9 @@ struct rmodule {
};
#if IS_ENABLED(CONFIG_RELOCATABLE_MODULES)
/* Rmodules have an entry point of named __rmodule_entry. */
/* Rmodules have an entry point of named _start. */
#define RMODULE_ENTRY(entry_) \
void __rmodule_entry(void *) __attribute__((alias (STRINGIFY(entry_))))
void _start(void *) __attribute__((alias (STRINGIFY(entry_))))
#else
#define RMODULE_ENTRY(entry_)
#endif