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# $OpenBSD: symbols.awk,v 1.13 2024/09/01 17:20:37 tb Exp $
# Copyright (c) 2018,2020 Theo Buehler <tb@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
# usage: awk -f symbols.awk < Symbols.list > symbols.c
BEGIN {
printf("#include \"include_headers.c\"\n\n")
}
{
symbols[$0] = $0
# Undefine aliases, so we don't accidentally leave them in Symbols.list.
printf("#ifdef %s\n#undef %s\n#endif\n", $0, $0)
printf("static typeof(%s) *_libre_%s;\n", $0, $0);
}
END {
printf("\nint\nmain(void)\n{\n")
printf("\tsize_t i;\n");
printf("\tstruct {\n")
printf("\t\tconst char *const name;\n")
printf("\t\tconst void *addr;\n")
printf("\t\tconst void *libre_addr;\n")
printf("\t} symbols[] = {\n")
for (symbol in symbols) {
printf("\t\t{\n")
printf("\t\t\t.name = \"%s\",\n", symbol)
printf("\t\t\t.addr = &%s,\n", symbol)
printf("#if defined(USE_LIBRESSL_NAMESPACE)\n")
printf("\t\t\t.libre_addr = &_libre_%s,\n", symbol)
printf("#endif\n")
printf("\t\t},\n")
}
printf("\t\};\n\n")
printf("\tfor (i = 0; i < sizeof(symbols) / sizeof(symbols[0]); i++)\n")
printf("\t\tfprintf(stderr, \"%%s: %%p\\n\", symbols[i].name, symbols[i].addr);\n")
printf("\n\tprintf(\"OK\\n\");\n")
printf("\n\treturn 0;\n}\n")
}
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