rmodule: use program.ld for linking
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>
diff --git a/src/include/memlayout.h b/src/include/memlayout.h
index f67753c..09be615 100644
--- a/src/include/memlayout.h
+++ b/src/include/memlayout.h
@@ -43,9 +43,9 @@
#define ARCH_STAGE_HAS_BSS_SECTION 1
#endif
-/* Default is that currently ramstage and smm only has a heap. */
+/* Default is that currently ramstage, smm, and rmodules have a heap. */
#ifndef ARCH_STAGE_HAS_HEAP_SECTION
-#define ARCH_STAGE_HAS_HEAP_SECTION (ENV_RAMSTAGE || ENV_SMM)
+#define ARCH_STAGE_HAS_HEAP_SECTION (ENV_RAMSTAGE || ENV_SMM || ENV_RMODULE)
#endif
#define STR(x) #x
diff --git a/src/include/rmodule.h b/src/include/rmodule.h
index 719c6a6..03cdf76 100644
--- a/src/include/rmodule.h
+++ b/src/include/rmodule.h
@@ -73,9 +73,9 @@
};
#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
diff --git a/src/include/rules.h b/src/include/rules.h
index 607d7fc..7523347 100644
--- a/src/include/rules.h
+++ b/src/include/rules.h
@@ -30,6 +30,7 @@
#define ENV_SMM 0
#define ENV_SECMON 0
#define ENV_VERSTAGE 0
+#define ENV_RMODULE 0
#elif defined(__ROMSTAGE__)
#define ENV_BOOTBLOCK 0
@@ -38,6 +39,7 @@
#define ENV_SMM 0
#define ENV_SECMON 0
#define ENV_VERSTAGE 0
+#define ENV_RMODULE 0
#elif defined(__SMM__)
#define ENV_BOOTBLOCK 0
@@ -46,6 +48,7 @@
#define ENV_SMM 1
#define ENV_SECMON 0
#define ENV_VERSTAGE 0
+#define ENV_RMODULE 0
#elif defined(__SECMON__)
#define ENV_BOOTBLOCK 0
@@ -54,6 +57,7 @@
#define ENV_SMM 0
#define ENV_SECMON 1
#define ENV_VERSTAGE 0
+#define ENV_RMODULE 0
#elif defined(__VERSTAGE__)
#define ENV_BOOTBLOCK 0
@@ -62,6 +66,7 @@
#define ENV_SMM 0
#define ENV_SECMON 0
#define ENV_VERSTAGE 1
+#define ENV_RMODULE 0
#elif defined(__RAMSTAGE__)
#define ENV_BOOTBLOCK 0
@@ -70,6 +75,16 @@
#define ENV_SMM 0
#define ENV_SECMON 0
#define ENV_VERSTAGE 0
+#define ENV_RMODULE 0
+
+#elif defined(__RMODULE__)
+#define ENV_BOOTBLOCK 0
+#define ENV_ROMSTAGE 0
+#define ENV_RAMSTAGE 0
+#define ENV_SMM 0
+#define ENV_SECMON 0
+#define ENV_VERSTAGE 0
+#define ENV_RMODULE 1
#else
/*
@@ -84,6 +99,7 @@
#define ENV_SMM 0
#define ENV_SECMON 0
#define ENV_VERSTAGE 0
+#define ENV_RMODULE 0
#endif
/* For romstage and ramstage always build with simple device model, ie.