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authorJordan Crouse <jordan.crouse@amd.com>2008-05-27 20:06:54 +0000
committerJordan Crouse <jordan.crouse@amd.com>2008-05-27 20:06:54 +0000
commitfc697ad028be74df40fde7eb3f18fc12d75a3d1d (patch)
tree892a02a552b407d100124f7f97af091843018303 /payloads
parentd9ce08dc8c0bde500b3845146b97c58e6d097d7c (diff)
downloadcoreboot-fc697ad028be74df40fde7eb3f18fc12d75a3d1d.tar.xz
libpayload: Add PAYLOAD_INFO macro
Adds the PAYLOAD_INFO macro to store payload information in a data section in the ELF which can be consumed by other entities. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3354 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'payloads')
-rw-r--r--payloads/libpayload/include/libpayload.h12
-rw-r--r--payloads/libpayload/lib/libpayload.ldscript2
2 files changed, 13 insertions, 1 deletions
diff --git a/payloads/libpayload/include/libpayload.h b/payloads/libpayload/include/libpayload.h
index c05aafb37c..dc2f5eec1b 100644
--- a/payloads/libpayload/include/libpayload.h
+++ b/payloads/libpayload/include/libpayload.h
@@ -55,6 +55,18 @@
#define RAND_MAX 0x7fffffff
+/* Payload information parameters - these are used to pass information
+ * to the entity loading the payload
+ * Usage: PAYLOAD_INFO(key, value)
+ * Example: PAYLOAD_INFO(name, "CoreInfo!")
+ */
+
+#define _pstruct(key) __pinfo_ ##key
+#define PAYLOAD_INFO(key, value) \
+static const char _pstruct(key)[] \
+ __attribute__((__used__)) \
+ __attribute__((section(".note.pinfo"),unused)) = #key "=" value
+
/* Some NVRAM byte definitions */
#define NVRAM_RTC_SECONDS 0
#define NVRAM_RTC_MINUTES 2
diff --git a/payloads/libpayload/lib/libpayload.ldscript b/payloads/libpayload/lib/libpayload.ldscript
index 7ae49e5808..400c1377a5 100644
--- a/payloads/libpayload/lib/libpayload.ldscript
+++ b/payloads/libpayload/lib/libpayload.ldscript
@@ -81,5 +81,5 @@ SECTIONS
_end = .;
- /DISCARD/ : { *(.comment) *(.note) *(.note.*) }
+ /DISCARD/ : { *(.comment) }
}