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Diffstat (limited to 'include/export/lib/utils_def_exp.h')
| -rw-r--r-- | include/export/lib/utils_def_exp.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/export/lib/utils_def_exp.h b/include/export/lib/utils_def_exp.h new file mode 100644 index 00000000..86c409ce --- /dev/null +++ b/include/export/lib/utils_def_exp.h @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2016-2019, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef ARM_TRUSTED_FIRMWARE_EXPORT_LIB_UTILS_DEF_EXP_H +#define ARM_TRUSTED_FIRMWARE_EXPORT_LIB_UTILS_DEF_EXP_H + +/* EXPORT HEADER -- See include/export/README for details! -- EXPORT HEADER */ + +/* + * For those constants to be shared between C and other sources, apply a 'U', + * 'UL', 'ULL', 'L' or 'LL' suffix to the argument only in C, to avoid + * undefined or unintended behaviour. + * + * The GNU assembler and linker do not support these suffixes (it causes the + * build process to fail) therefore the suffix is omitted when used in linker + * scripts and assembler files. +*/ +#if defined(__ASSEMBLER__) +# define U(_x) (_x) +# define UL(_x) (_x) +# define ULL(_x) (_x) +# define L(_x) (_x) +# define LL(_x) (_x) +#else +# define U(_x) (_x##U) +# define UL(_x) (_x##UL) +# define ULL(_x) (_x##ULL) +# define L(_x) (_x##L) +# define LL(_x) (_x##LL) +#endif + +#endif /* ARM_TRUSTED_FIRMWARE_EXPORT_LIB_UTILS_DEF_EXP_H */ |