diff options
Diffstat (limited to 'tools/objtool/arch/loongarch/decode.c')
-rw-r--r-- | tools/objtool/arch/loongarch/decode.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/tools/objtool/arch/loongarch/decode.c b/tools/objtool/arch/loongarch/decode.c new file mode 100644 index 000000000000..cc74ba4e0f54 --- /dev/null +++ b/tools/objtool/arch/loongarch/decode.c @@ -0,0 +1,71 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +#include <string.h> +#include <objtool/check.h> + +int arch_ftrace_match(char *name) +{ + return !strcmp(name, "_mcount"); +} + +unsigned long arch_jump_destination(struct instruction *insn) +{ + return insn->offset + (insn->immediate << 2); +} + +unsigned long arch_dest_reloc_offset(int addend) +{ + return addend; +} + +bool arch_pc_relative_reloc(struct reloc *reloc) +{ + return false; +} + +bool arch_callee_saved_reg(unsigned char reg) +{ + switch (reg) { + case CFI_RA: + case CFI_FP: + case CFI_S0 ... CFI_S8: + return true; + default: + return false; + } +} + +int arch_decode_hint_reg(u8 sp_reg, int *base) +{ + return 0; +} + +int arch_decode_instruction(struct objtool_file *file, const struct section *sec, + unsigned long offset, unsigned int maxlen, + struct instruction *insn) +{ + return 0; +} + +const char *arch_nop_insn(int len) +{ + return NULL; +} + +const char *arch_ret_insn(int len) +{ + return NULL; +} + +void arch_initial_func_cfi_state(struct cfi_init_state *state) +{ + int i; + + for (i = 0; i < CFI_NUM_REGS; i++) { + state->regs[i].base = CFI_UNDEFINED; + state->regs[i].offset = 0; + } + + /* initial CFA (call frame address) */ + state->cfa.base = CFI_SP; + state->cfa.offset = 0; +} |