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3ee88df1b0
struct instruction {
struct list_head list; /* 0 16 */
struct hlist_node hash; /* 16 16 */
struct list_head call_node; /* 32 16 */
struct section * sec; /* 48 8 */
long unsigned int offset; /* 56 8 */
/* --- cacheline 1 boundary (64 bytes) --- */
unsigned int len; /* 64 4 */
enum insn_type type; /* 68 4 */
long unsigned int immediate; /* 72 8 */
u16 dead_end:1; /* 80: 0 2 */
u16 ignore:1; /* 80: 1 2 */
u16 ignore_alts:1; /* 80: 2 2 */
u16 hint:1; /* 80: 3 2 */
u16 save:1; /* 80: 4 2 */
u16 restore:1; /* 80: 5 2 */
u16 retpoline_safe:1; /* 80: 6 2 */
u16 noendbr:1; /* 80: 7 2 */
u16 entry:1; /* 80: 8 2 */
/* XXX 7 bits hole, try to pack */
s8 instr; /* 82 1 */
u8 visited; /* 83 1 */
/* XXX 4 bytes hole, try to pack */
struct alt_group * alt_group; /* 88 8 */
struct symbol * call_dest; /* 96 8 */
struct instruction * jump_dest; /* 104 8 */
struct instruction * first_jump_src; /* 112 8 */
struct reloc * jump_table; /* 120 8 */
/* --- cacheline 2 boundary (128 bytes) --- */
struct reloc * reloc; /* 128 8 */
struct list_head alts; /* 136 16 */
struct symbol * sym; /* 152 8 */
- struct list_head stack_ops; /* 160 16 */
- struct cfi_state * cfi; /* 176 8 */
+ struct stack_op * stack_ops; /* 160 8 */
+ struct cfi_state * cfi; /* 168 8 */
- /* size: 184, cachelines: 3, members: 29 */
- /* sum members: 178, holes: 1, sum holes: 4 */
+ /* size: 176, cachelines: 3, members: 29 */
+ /* sum members: 170, holes: 1, sum holes: 4 */
/* sum bitfield members: 9 bits, bit holes: 1, sum bit holes: 7 bits */
- /* last cacheline: 56 bytes */
+ /* last cacheline: 48 bytes */
};
pre: 5:58.22 real, 226.69 user, 131.22 sys, 26221520 mem
post: 5:58.50 real, 229.64 user, 128.65 sys, 26221520 mem
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org> # build only
Tested-by: Thomas Weißschuh <linux@weissschuh.net> # compile and run
Link: https://lore.kernel.org/r/20230208172245.362196959@infradead.org
99 lines
1.8 KiB
C
99 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
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*/
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#ifndef _ARCH_H
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#define _ARCH_H
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#include <stdbool.h>
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#include <linux/list.h>
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#include <objtool/objtool.h>
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#include <objtool/cfi.h>
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enum insn_type {
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INSN_JUMP_CONDITIONAL,
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INSN_JUMP_UNCONDITIONAL,
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INSN_JUMP_DYNAMIC,
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INSN_JUMP_DYNAMIC_CONDITIONAL,
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INSN_CALL,
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INSN_CALL_DYNAMIC,
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INSN_RETURN,
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INSN_CONTEXT_SWITCH,
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INSN_BUG,
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INSN_NOP,
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INSN_STAC,
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INSN_CLAC,
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INSN_STD,
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INSN_CLD,
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INSN_TRAP,
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INSN_ENDBR,
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INSN_OTHER,
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};
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enum op_dest_type {
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OP_DEST_REG,
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OP_DEST_REG_INDIRECT,
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OP_DEST_MEM,
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OP_DEST_PUSH,
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OP_DEST_PUSHF,
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};
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struct op_dest {
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enum op_dest_type type;
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unsigned char reg;
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int offset;
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};
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enum op_src_type {
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OP_SRC_REG,
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OP_SRC_REG_INDIRECT,
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OP_SRC_CONST,
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OP_SRC_POP,
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OP_SRC_POPF,
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OP_SRC_ADD,
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OP_SRC_AND,
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};
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struct op_src {
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enum op_src_type type;
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unsigned char reg;
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int offset;
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};
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struct stack_op {
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struct stack_op *next;
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struct op_dest dest;
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struct op_src src;
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};
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struct instruction;
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int arch_ftrace_match(char *name);
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void arch_initial_func_cfi_state(struct cfi_init_state *state);
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int arch_decode_instruction(struct objtool_file *file, const struct section *sec,
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unsigned long offset, unsigned int maxlen,
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struct instruction *insn);
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bool arch_callee_saved_reg(unsigned char reg);
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unsigned long arch_jump_destination(struct instruction *insn);
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unsigned long arch_dest_reloc_offset(int addend);
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const char *arch_nop_insn(int len);
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const char *arch_ret_insn(int len);
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int arch_decode_hint_reg(u8 sp_reg, int *base);
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bool arch_is_retpoline(struct symbol *sym);
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bool arch_is_rethunk(struct symbol *sym);
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int arch_rewrite_retpolines(struct objtool_file *file);
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bool arch_pc_relative_reloc(struct reloc *reloc);
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#endif /* _ARCH_H */
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