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/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _OBJTOOL_CHECKSUM_H
#define _OBJTOOL_CHECKSUM_H
#include <objtool/elf.h>
#ifdef BUILD_KLP
static inline void checksum_init(struct symbol *sym)
{
if (sym && !sym->csum.state) {
sym->csum.state = XXH3_createState();
XXH3_64bits_reset(sym->csum.state);
}
}
static inline void __checksum_update(struct symbol *sym, const void *data,
size_t size)
{
XXH3_64bits_update(sym->csum.state, data, size);
}
static inline void __checksum_update_insn(struct symbol *sym,
struct instruction *insn,
const void *data, size_t size)
{
__checksum_update(sym, data, size);
dbg_checksum_insn(sym, insn, XXH3_64bits_digest(sym->csum.state));
}
static inline void __checksum_update_object(struct symbol *sym,
unsigned long offset,
const char *what, const void *data,
size_t size)
{
__checksum_update(sym, &offset, sizeof(offset));
__checksum_update(sym, data, size);
dbg_checksum_object(sym, offset, what, XXH3_64bits_digest(sym->csum.state));
}
static inline void checksum_finish(struct symbol *sym)
{
if (sym && sym->csum.state) {
sym->csum.checksum = XXH3_64bits_digest(sym->csum.state);
XXH3_freeState(sym->csum.state);
sym->csum.state = NULL;
}
}
int calculate_checksums(struct objtool_file *file);
int create_sym_checksum_section(struct objtool_file *file);
#else /* !BUILD_KLP */
static inline int calculate_checksums(struct objtool_file *file) { return -ENOSYS; }
static inline int create_sym_checksum_section(struct objtool_file *file) { return -EINVAL; }
#endif /* !BUILD_KLP */
#endif /* _OBJTOOL_CHECKSUM_H */
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