It will be used in lookupswitch jump instead of
PUSH_MEMBASE and RET.
Signed-off-by: Tomek Grabiec <tgrab...@gmail.com>
---
arch/x86/emit-code.c | 7 +++++++
arch/x86/include/arch/instruction.h | 1 +
arch/x86/lir-printer.c | 7 +++++++
arch/x86/use-def.c | 1 +
4 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/arch/x86/emit-code.c b/arch/x86/emit-code.c
index 263d370..8f73e53 100644
--- a/arch/x86/emit-code.c
+++ b/arch/x86/emit-code.c
@@ -1702,6 +1702,12 @@ static void emit_jmp_memindex(struct buffer *buf, struct
operand *target)
encode_reg(&target->base_reg)));
}
+static void emit_jmp_membase(struct buffer *buf, struct operand *target)
+{
+ __emit_membase(buf, 0xff, mach_reg(&target->base_reg), target->disp,
+ 0x04);
+}
+
struct emitter emitters[] = {
GENERIC_X86_EMITTERS,
DECL_EMITTER(INSN_ADC_IMM_REG, emit_adc_imm_reg, TWO_OPERANDS),
@@ -1737,6 +1743,7 @@ struct emitter emitters[] = {
DECL_EMITTER(INSN_CONV_FPU64_TO_GPR, emit_conv_fpu64_to_gpr,
TWO_OPERANDS),
DECL_EMITTER(INSN_CONV_XMM_TO_XMM64, emit_conv_xmm_to_xmm64,
TWO_OPERANDS),
DECL_EMITTER(INSN_CONV_XMM64_TO_XMM, emit_conv_xmm64_to_xmm,
TWO_OPERANDS),
+ DECL_EMITTER(INSN_JMP_MEMBASE, emit_jmp_membase, SINGLE_OPERAND),
DECL_EMITTER(INSN_JMP_MEMINDEX, emit_jmp_memindex, SINGLE_OPERAND),
DECL_EMITTER(INSN_MOV_MEMBASE_XMM, emit_mov_membase_xmm, TWO_OPERANDS),
DECL_EMITTER(INSN_MOV_64_MEMBASE_XMM, emit_mov_64_membase_xmm,
TWO_OPERANDS),
diff --git a/arch/x86/include/arch/instruction.h
b/arch/x86/include/arch/instruction.h
index b45959d..4f178a8 100644
--- a/arch/x86/include/arch/instruction.h
+++ b/arch/x86/include/arch/instruction.h
@@ -98,6 +98,7 @@ enum insn_type {
INSN_JLE_BRANCH,
INSN_JL_BRANCH,
INSN_JMP_MEMINDEX,
+ INSN_JMP_MEMBASE,
INSN_JMP_BRANCH,
INSN_JNE_BRANCH,
INSN_MOV_IMM_MEMBASE,
diff --git a/arch/x86/lir-printer.c b/arch/x86/lir-printer.c
index 070a5db..f2861ae 100644
--- a/arch/x86/lir-printer.c
+++ b/arch/x86/lir-printer.c
@@ -486,6 +486,12 @@ static int print_jmp_memindex(struct string *str, struct
insn *insn)
return print_memindex(str, &insn->operand);
}
+static int print_jmp_membase(struct string *str, struct insn *insn)
+{
+ print_func_name(str);
+ return print_membase(str, &insn->operand);
+}
+
static int print_jne_branch(struct string *str, struct insn *insn)
{
print_func_name(str);
@@ -913,6 +919,7 @@ static print_insn_fn insn_printers[] = {
[INSN_JLE_BRANCH] = print_jle_branch,
[INSN_JL_BRANCH] = print_jl_branch,
[INSN_JMP_BRANCH] = print_jmp_branch,
+ [INSN_JMP_MEMBASE] = print_jmp_membase,
[INSN_JMP_MEMINDEX] = print_jmp_memindex,
[INSN_JNE_BRANCH] = print_jne_branch,
[INSN_MOV_IMM_MEMBASE] = print_mov_imm_membase,
diff --git a/arch/x86/use-def.c b/arch/x86/use-def.c
index 7b82b26..8ade62a 100644
--- a/arch/x86/use-def.c
+++ b/arch/x86/use-def.c
@@ -85,6 +85,7 @@ static struct insn_info insn_infos[] = {
DECLARE_INFO(INSN_JLE_BRANCH, USE_NONE | DEF_NONE),
DECLARE_INFO(INSN_JL_BRANCH, USE_NONE | DEF_NONE),
DECLARE_INFO(INSN_JMP_BRANCH, USE_NONE | DEF_NONE),
+ DECLARE_INFO(INSN_JMP_MEMBASE, USE_SRC | DEF_NONE),
DECLARE_INFO(INSN_JMP_MEMINDEX, USE_IDX_SRC | USE_SRC | DEF_NONE),
DECLARE_INFO(INSN_JNE_BRANCH, USE_NONE | DEF_NONE),
DECLARE_INFO(INSN_MOV_IMM_MEMBASE, USE_DST),
--
1.6.0.6
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