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按照AI给出的建议修复

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liankong
2025-03-30 01:55:29 +08:00
parent 31852bc2b8
commit 2ca346340f
1 changed files with 29 additions and 2 deletions
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31
kernel/kpm/kpm.c
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@@ -406,6 +406,33 @@ typedef enum {
RELOC_OP_PAGE
} reloc_op_t;
// 移植自内核 arch/arm64/kernel/insn.c
int aarch64_insn_patch_imm(void *addr, aarch64_insn_imm_type type, s64 imm)
{
u32 insn = le32_to_cpu(*(u32 *)addr);
u32 new_insn;
switch (type) {
case AARCH64_INSN_IMM_16: // MOVZ/MOVK 的 16-bit 立即数
new_insn = aarch64_insn_encode_immediate(type, insn, imm);
break;
case AARCH64_INSN_IMM_26: // B/BL 的 26-bit 偏移
new_insn = aarch64_insn_encode_offset(insn, imm, 26);
break;
case AARCH64_INSN_IMM_ADR: // ADR 的 21-bit 页偏移
new_insn = aarch64_insn_encode_offset(insn, imm, 21);
break;
case AARCH64_INSN_IMM_19: // 条件跳转的 19-bit 偏移
new_insn = aarch64_insn_encode_offset(insn, imm, 19);
break;
default:
return -EINVAL;
}
*(u32 *)addr = cpu_to_le32(new_insn);
return 0;
}
/* 指令编码辅助函数 */
static int reloc_data(reloc_op_t op, void *loc, u64 val, int len)
{
@@ -447,7 +474,7 @@ static int reloc_data(reloc_op_t op, void *loc, u64 val, int len)
}
/* MOVW 指令重定位 */
static int reloc_insn_movw(reloc_op_t op, void *loc, u64 val, int shift, aarch64_insn_imm_type imm_type)
static int reloc_insn_movw(reloc_op_t op, void *loc, u64 val, int shift, enum aarch64_insn_imm_type imm_type)
{
u64 imm = val;
s64 sval;
@@ -467,7 +494,7 @@ static int reloc_insn_movw(reloc_op_t op, void *loc, u64 val, int shift, aarch64
}
/* 立即数指令重定位 */
static int reloc_insn_imm(reloc_op_t op, void *loc, u64 val, int shift, int len, aarch64_insn_imm_type imm_type)
static int reloc_insn_imm(reloc_op_t op, void *loc, u64 val, int shift, int len, enum aarch64_insn_imm_type imm_type)
{
u64 imm = val;
s64 sval;