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authorJulius Werner <jwerner@chromium.org>2019-02-20 18:39:22 -0800
committerJulius Werner <jwerner@chromium.org>2019-02-22 06:44:02 +0000
commit7e0dea6317dc74f8aba8c91d0f8e8a7237261c49 (patch)
treec9f476b75f0f9fcfe84aeb00b396723b3bcf7f5b /src/security
parent314b5c370b4655bc701985ddf1d1d478067e7baa (diff)
downloadcoreboot-7e0dea6317dc74f8aba8c91d0f8e8a7237261c49.tar.xz
symbols.h: Add macro to define memlayout region symbols
When <symbols.h> was first introduced, it only declared a handful of regions and we didn't expect that too many architectures and platforms would need to add their own later. However, our amount of platforms has greatly expanded since, and with them the need for more special memory regions. The amount of code duplication is starting to get unsightly, and platforms keep defining their own <soc/symbols.h> files that need this as well. This patch adds another macro to cut down the definition boilerplate. Unfortunately, macros cannot define other macros when they're called, so referring to region sizes as _name_size doesn't work anymore. This patch replaces the scheme with REGION_SIZE(name). Not touching the regions in the x86-specific <arch/symbols.h> yet since they don't follow the standard _region/_eregion naming scheme. They can be converted later if desired. Change-Id: I44727d77d1de75882c72a94f29bd7e2c27741dd8 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/31539 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/security')
-rw-r--r--src/security/vboot/common.c2
-rw-r--r--src/security/vboot/symbols.h6
2 files changed, 4 insertions, 4 deletions
diff --git a/src/security/vboot/common.c b/src/security/vboot/common.c
index 747644a062..da4e1ca09f 100644
--- a/src/security/vboot/common.c
+++ b/src/security/vboot/common.c
@@ -56,7 +56,7 @@ static size_t vb2_working_data_size(void)
if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE))
return vb_work_buf_size;
else
- return _vboot2_work_size;
+ return REGION_SIZE(vboot2_work);
}
static struct selected_region *vb2_selected_region(void)
diff --git a/src/security/vboot/symbols.h b/src/security/vboot/symbols.h
index ddf9d950ce..e8ea580ef2 100644
--- a/src/security/vboot/symbols.h
+++ b/src/security/vboot/symbols.h
@@ -16,8 +16,8 @@
#ifndef __VBOOT_SYMBOLS_H__
#define __VBOOT_SYMBOLS_H__
-extern u8 _vboot2_work[];
-extern u8 _evboot2_work[];
-#define _vboot2_work_size (_evboot2_work - _vboot2_work)
+#include <symbols.h>
+
+DECLARE_REGION(vboot2_work)
#endif /* __VBOOT_SYMBOLS_H__ */