Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 82 insertions, 0 deletions

diff --git a/tools/objtool/check.h b/tools/objtool/check.h
new file mode 100644
index 000000000..e6e8a655b
--- /dev/null
+++ b/tools/objtool/check.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _CHECK_H
+#define _CHECK_H
+
+#include <stdbool.h>
+#include "elf.h"
+#include "cfi.h"
+#include "arch.h"
+#include "orc.h"
+#include <linux/hashtable.h>
+
+struct insn_state {
+	struct cfi_reg cfa;
+	struct cfi_reg regs[CFI_NUM_REGS];
+	int stack_size;
+	unsigned char type;
+	bool bp_scratch;
+	bool drap, end;
+	int drap_reg, drap_offset;
+	struct cfi_reg vals[CFI_NUM_REGS];
+};
+
+struct instruction {
+	struct list_head list;
+	struct hlist_node hash;
+	struct section *sec;
+	unsigned long offset;
+	unsigned int len;
+	unsigned char type;
+	unsigned long immediate;
+	bool alt_group, visited, dead_end, ignore, hint, save, restore, ignore_alts;
+	bool retpoline_safe;
+	struct symbol *call_dest;
+	struct instruction *jump_dest;
+	struct instruction *first_jump_src;
+	struct list_head alts;
+	struct symbol *func;
+	struct stack_op stack_op;
+	struct insn_state state;
+	struct orc_entry orc;
+};
+
+struct objtool_file {
+	struct elf *elf;
+	struct list_head insn_list;
+	DECLARE_HASHTABLE(insn_hash, 16);
+	struct section *whitelist;
+	bool ignore_unreachables, c_file, hints, rodata;
+};
+
+int check(const char *objname, bool orc);
+
+struct instruction *find_insn(struct objtool_file *file,
+			      struct section *sec, unsigned long offset);
+
+#define for_each_insn(file, insn)					\
+	list_for_each_entry(insn, &file->insn_list, list)
+
+#define sec_for_each_insn(file, sec, insn)				\
+	for (insn = find_insn(file, sec, 0);				\
+	     insn && &insn->list != &file->insn_list &&			\
+			insn->sec == sec;				\
+	     insn = list_next_entry(insn, list))
+
+
+#endif /* _CHECK_H */