diff options
Diffstat (limited to 'tools/objtool/include/objtool/cfi.h')
| -rw-r--r-- | tools/objtool/include/objtool/cfi.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/tools/objtool/include/objtool/cfi.h b/tools/objtool/include/objtool/cfi.h new file mode 100644 index 000000000000..c8a6bec4f6b9 --- /dev/null +++ b/tools/objtool/include/objtool/cfi.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2015-2017 Josh Poimboeuf <jpoimboe@redhat.com> + */ + +#ifndef _OBJTOOL_CFI_H +#define _OBJTOOL_CFI_H + +#include <arch/cfi_regs.h> +#include <linux/list.h> + +#define CFI_UNDEFINED -1 +#define CFI_CFA -2 +#define CFI_SP_INDIRECT -3 +#define CFI_BP_INDIRECT -4 + +struct cfi_reg { + int base; + int offset; +}; + +struct cfi_init_state { + struct cfi_reg regs[CFI_NUM_REGS]; + struct cfi_reg cfa; +}; + +struct cfi_state { + struct hlist_node hash; /* must be first, cficmp() */ + struct cfi_reg regs[CFI_NUM_REGS]; + struct cfi_reg vals[CFI_NUM_REGS]; + struct cfi_reg cfa; + int stack_size; + int drap_reg, drap_offset; + unsigned char type; + bool bp_scratch; + bool drap; + bool signal; + bool end; + bool force_undefined; +}; + +#endif /* _OBJTOOL_CFI_H */ |