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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-09 03:02:35 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-09 03:02:35 -0400
commit1236d6bb6e19fc72ffc6bbcdeb1bfefe450e54ee (patch)
tree47da3feee8e263e8c9352c85cf518e624be3c211 /tools/objtool/arch/x86/decode.c
parent750b1a6894ecc9b178c6e3d0a1170122971b2036 (diff)
parent8a5776a5f49812d29fe4b2d0a2d71675c3facf3f (diff)
Merge 4.14-rc4 into staging-next
We want the staging/iio fixes in here as well to handle merge issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/objtool/arch/x86/decode.c')
-rw-r--r--tools/objtool/arch/x86/decode.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c
index 0e8c8ec4fd4e..34a579f806e3 100644
--- a/tools/objtool/arch/x86/decode.c
+++ b/tools/objtool/arch/x86/decode.c
@@ -208,14 +208,14 @@ int arch_decode_instruction(struct elf *elf, struct section *sec,
208 break; 208 break;
209 209
210 case 0x89: 210 case 0x89:
211 if (rex == 0x48 && modrm == 0xe5) { 211 if (rex_w && !rex_r && modrm_mod == 3 && modrm_reg == 4) {
212 212
213 /* mov %rsp, %rbp */ 213 /* mov %rsp, reg */
214 *type = INSN_STACK; 214 *type = INSN_STACK;
215 op->src.type = OP_SRC_REG; 215 op->src.type = OP_SRC_REG;
216 op->src.reg = CFI_SP; 216 op->src.reg = CFI_SP;
217 op->dest.type = OP_DEST_REG; 217 op->dest.type = OP_DEST_REG;
218 op->dest.reg = CFI_BP; 218 op->dest.reg = op_to_cfi_reg[modrm_rm][rex_b];
219 break; 219 break;
220 } 220 }
221 221
@@ -284,11 +284,16 @@ int arch_decode_instruction(struct elf *elf, struct section *sec,
284 case 0x8d: 284 case 0x8d:
285 if (sib == 0x24 && rex_w && !rex_b && !rex_x) { 285 if (sib == 0x24 && rex_w && !rex_b && !rex_x) {
286 286
287 /* lea disp(%rsp), reg */
288 *type = INSN_STACK; 287 *type = INSN_STACK;
289 op->src.type = OP_SRC_ADD; 288 if (!insn.displacement.value) {
289 /* lea (%rsp), reg */
290 op->src.type = OP_SRC_REG;
291 } else {
292 /* lea disp(%rsp), reg */
293 op->src.type = OP_SRC_ADD;
294 op->src.offset = insn.displacement.value;
295 }
290 op->src.reg = CFI_SP; 296 op->src.reg = CFI_SP;
291 op->src.offset = insn.displacement.value;
292 op->dest.type = OP_DEST_REG; 297 op->dest.type = OP_DEST_REG;
293 op->dest.reg = op_to_cfi_reg[modrm_reg][rex_r]; 298 op->dest.reg = op_to_cfi_reg[modrm_reg][rex_r];
294 299