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Diffstat (limited to 'src/x86util.h')
| -rw-r--r-- | src/x86util.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/x86util.h b/src/x86util.h new file mode 100644 index 0000000..0ae89ae --- /dev/null +++ b/src/x86util.h @@ -0,0 +1,37 @@ +/* + * Copyright © 2022 Michael Smith <mikesmiffy128@gmail.com> + * + * Permission to use, copy, modify, and/or 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. + */ + +#ifndef INC_X86UTIL_H +#define INC_X86UTIL_H + +#include <stdbool.h> + +#include "errmsg.h" +#include "x86.h" + +// XXX: don't know where else to put this, or how else to design this, so this +// is very much a plonk-it-here-for-now scenario. + +#define NEXT_INSN(p, tgt) do { \ + int _len = x86_len(p); \ + if (_len == -1) { \ + errmsg_errorx("unknown or invalid instruction looking for %s", tgt); \ + return false; \ + } \ + (p) += _len; \ +} while (0) + +#endif |