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Diffstat (limited to 'core/include/keep.h')
-rw-r--r-- | core/include/keep.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/core/include/keep.h b/core/include/keep.h new file mode 100644 index 0000000..81e4917 --- /dev/null +++ b/core/include/keep.h @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2015, Linaro Limited + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef KEEP_H +#define KEEP_H + +#ifdef ASM + + .macro KEEP_PAGER sym + .pushsection __keep_meta_vars_pager + ___keep_pager_\sym: + .long \sym + .popsection + .endm + + .macro KEEP_INIT sym + .pushsection __keep_meta_vars_init + ___keep_init_\sym: + .long \sym + .popsection + .endm + +#else + +#include <compiler.h> + +#define KEEP_PAGER(sym) \ + const unsigned long ____keep_pager_##sym \ + __section("__keep_meta_vars_pager") = (unsigned long)&sym + +#define KEEP_INIT(sym) \ + const unsigned long ____keep_init_##sym \ + __section("__keep_meta_vars_init") = (unsigned long)&sym + +#endif /* ASM */ + +#endif /*KEEP_H*/ |