diff options
Diffstat (limited to 'include/lib/utils_def.h')
| -rw-r--r-- | include/lib/utils_def.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/include/lib/utils_def.h b/include/lib/utils_def.h index 4a5c3e0bc..8abc73c09 100644 --- a/include/lib/utils_def.h +++ b/include/lib/utils_def.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -99,4 +99,21 @@ ((ARM_ARCH_MAJOR > _maj) || \ ((ARM_ARCH_MAJOR == _maj) && (ARM_ARCH_MINOR >= _min))) +/* + * Import an assembly or linker symbol as a C expression with the specified + * type + */ +#define IMPORT_SYM(type, sym, name) \ + extern char sym[];\ + static const __attribute__((unused)) type name = (type) sym; + +/* + * When the symbol is used to hold a pointer, its alignment can be asserted + * with this macro. For example, if there is a linker symbol that is going to + * be used as a 64-bit pointer, the value of the linker symbol must also be + * aligned to 64 bit. This macro makes sure this is the case. + */ +#define ASSERT_SYM_PTR_ALIGN(sym) assert(((size_t)(sym) % __alignof__(*(sym))) == 0) + + #endif /* __UTILS_DEF_H__ */ |