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| author | Tiezhu Yang <yangtiezhu@loongson.cn> | 2023-06-29 20:58:44 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2023-06-29 20:58:44 +0800 |
| commit | 49ed320da5f52ec729e7f2f9edbc6e79848455bd (patch) | |
| tree | 1de5fb0ee897b261b3408e0d1cb45103998bcbd6 /arch/loongarch/include/asm/inst.h | |
| parent | b82fad4d5deb2c2a15fdb581a1e6725dcea666e7 (diff) | |
| download | lwn-49ed320da5f52ec729e7f2f9edbc6e79848455bd.tar.gz lwn-49ed320da5f52ec729e7f2f9edbc6e79848455bd.zip | |
LoongArch: Add larch_insn_gen_break() to generate break insns
There exist various break insns such as BRK_KPROBE_BP, BRK_KPROBE_SSTEPBP,
BRK_UPROBE_BP and BRK_UPROBE_XOLBP, add larch_insn_gen_break() to generate
break insns simpler, this is preparation for later patch.
Tested-by: Jeff Xie <xiehuan09@gmail.com>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/include/asm/inst.h')
| -rw-r--r-- | arch/loongarch/include/asm/inst.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/inst.h b/arch/loongarch/include/asm/inst.h index a8b88a09a1b0..71e1ed4165c8 100644 --- a/arch/loongarch/include/asm/inst.h +++ b/arch/loongarch/include/asm/inst.h @@ -482,6 +482,8 @@ u32 larch_insn_gen_nop(void); u32 larch_insn_gen_b(unsigned long pc, unsigned long dest); u32 larch_insn_gen_bl(unsigned long pc, unsigned long dest); +u32 larch_insn_gen_break(int imm); + u32 larch_insn_gen_or(enum loongarch_gpr rd, enum loongarch_gpr rj, enum loongarch_gpr rk); u32 larch_insn_gen_move(enum loongarch_gpr rd, enum loongarch_gpr rj); @@ -500,6 +502,16 @@ static inline bool unsigned_imm_check(unsigned long val, unsigned int bit) return val < (1UL << bit); } +#define DEF_EMIT_REG0I15_FORMAT(NAME, OP) \ +static inline void emit_##NAME(union loongarch_instruction *insn, \ + int imm) \ +{ \ + insn->reg0i15_format.opcode = OP; \ + insn->reg0i15_format.immediate = imm; \ +} + +DEF_EMIT_REG0I15_FORMAT(break, break_op) + #define DEF_EMIT_REG0I26_FORMAT(NAME, OP) \ static inline void emit_##NAME(union loongarch_instruction *insn, \ int offset) \ |