summaryrefslogtreecommitdiff
path: root/src/arch
diff options
context:
space:
mode:
Diffstat (limited to 'src/arch')
-rw-r--r--src/arch/arm/v7/opcodes/opcodes_tmp_thumb_16.h2
-rw-r--r--src/arch/arm/v7/opcodes/opcodes_tmp_thumb_32.h12
-rw-r--r--src/arch/arm/v7/opdefs/Makefile.am2
-rw-r--r--src/arch/arm/v7/opdefs/ldrb_A8870.d129
-rw-r--r--src/arch/arm/v7/opdefs/strb_A88208.d127
-rw-r--r--src/arch/arm/v7/thumb_32.c125
6 files changed, 393 insertions, 4 deletions
diff --git a/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_16.h b/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_16.h
index 3b07f7e..3d3aa3a 100644
--- a/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_16.h
+++ b/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_16.h
@@ -5,7 +5,6 @@
#define armv7_read_thumb_16_instr_cps_thumb(r) NULL
#define armv7_read_thumb_16_instr_it(r) NULL
#define armv7_read_thumb_16_instr_ldm_ldmia_ldmfd_thumb(r) NULL
-#define armv7_read_thumb_16_instr_ldrb_register(r) NULL
#define armv7_read_thumb_16_instr_ldrh_immediate_thumb(r) NULL
#define armv7_read_thumb_16_instr_ldrh_register(r) NULL
#define armv7_read_thumb_16_instr_ldrsb_register(r) NULL
@@ -20,7 +19,6 @@
#define armv7_read_thumb_16_instr_setend(r) NULL
#define armv7_read_thumb_16_instr_sev(r) NULL
#define armv7_read_thumb_16_instr_stm_stmia_stmea(r) NULL
-#define armv7_read_thumb_16_instr_strb_register(r) NULL
#define armv7_read_thumb_16_instr_strh_immediate_thumb(r) NULL
#define armv7_read_thumb_16_instr_strh_register(r) NULL
#define armv7_read_thumb_16_instr_str_register(r) NULL
diff --git a/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_32.h b/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_32.h
index 612052b..7510b20 100644
--- a/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_32.h
+++ b/src/arch/arm/v7/opcodes/opcodes_tmp_thumb_32.h
@@ -18,6 +18,12 @@
#define armv7_read_thumb_32_instr_isb(r) NULL
#define armv7_read_thumb_32_instr_ldmdb_ldmea(r) NULL
#define armv7_read_thumb_32_instr_ldm_ldmia_ldmfd_thumb(r) NULL
+#define armv7_read_thumb_32_instr_ldrb_literal(r) NULL
+#define armv7_read_thumb_32_instr_ldrbt(r) NULL
+#define armv7_read_thumb_32_instr_ldrsb_immediate(r) NULL
+#define armv7_read_thumb_32_instr_ldrsb_literal(r) NULL
+#define armv7_read_thumb_32_instr_ldrsb_register(r) NULL
+#define armv7_read_thumb_32_instr_ldrsbt(r) NULL
#define armv7_read_thumb_32_instr_ldrt(r) NULL
#define armv7_read_thumb_32_instr_lsl_register(r) NULL
#define armv7_read_thumb_32_instr_lsr_register(r) NULL
@@ -28,6 +34,11 @@
#define armv7_read_thumb_32_instr_orn_immediate(r) NULL
#define armv7_read_thumb_32_instr_orn_register(r) NULL
#define armv7_read_thumb_32_instr_pkh(r) NULL
+#define armv7_read_thumb_32_instr_pld_immediate(r) NULL
+#define armv7_read_thumb_32_instr_pld_literal(r) NULL
+#define armv7_read_thumb_32_instr_pld_register(r) NULL
+#define armv7_read_thumb_32_instr_pli_immediate_literal(r) NULL
+#define armv7_read_thumb_32_instr_pli_register(r) NULL
#define armv7_read_thumb_32_instr_qadd(r) NULL
#define armv7_read_thumb_32_instr_qdadd(r) NULL
#define armv7_read_thumb_32_instr_qdsub(r) NULL
@@ -80,7 +91,6 @@
#define armv7_read_thumb_32_instr_ssub8(r) NULL
#define armv7_read_thumb_32_instr_stmdb_stmfd(r) NULL
#define armv7_read_thumb_32_instr_stm_stmia_stmea(r) NULL
-#define armv7_read_thumb_32_instr_strb_register(r) NULL
#define armv7_read_thumb_32_instr_strbt(r) NULL
#define armv7_read_thumb_32_instr_strh_immediate_thumb(r) NULL
#define armv7_read_thumb_32_instr_strh_register(r) NULL
diff --git a/src/arch/arm/v7/opdefs/Makefile.am b/src/arch/arm/v7/opdefs/Makefile.am
index b897f1d..6678f0e 100644
--- a/src/arch/arm/v7/opdefs/Makefile.am
+++ b/src/arch/arm/v7/opdefs/Makefile.am
@@ -54,6 +54,7 @@ ARMV7_DEFS = \
ldr_A8864.d \
ldr_A8865.d \
ldrb_A8867.d \
+ ldrb_A8870.d \
lsl_A8894.d \
mla_A88100.d \
mls_A88101.d \
@@ -81,6 +82,7 @@ ARMV7_DEFS = \
str_A88203.d \
str_A88204.d \
strb_A88206.d \
+ strb_A88208.d \
sub_A88221.d \
sub_A88222.d \
sub_A88223.d \
diff --git a/src/arch/arm/v7/opdefs/ldrb_A8870.d b/src/arch/arm/v7/opdefs/ldrb_A8870.d
new file mode 100644
index 0000000..0de0af2
--- /dev/null
+++ b/src/arch/arm/v7/opdefs/ldrb_A8870.d
@@ -0,0 +1,129 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * ##FILE## - traduction d'instructions ARMv7
+ *
+ * Copyright (C) 2014 Cyrille Bagard
+ *
+ * This file is part of Chrysalide.
+ *
+ * Chrysalide is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Chrysalide is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Foobar. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+@title LDRB (register)
+
+@encoding(t1) {
+
+ @half 0 1 0 1 0 1 0 Rm(3) Rn(3) Rt(3)
+
+ @syntax <Rgt> <access>
+
+ @conv {
+
+ Rgt = Register(Rt)
+ Rgn = Register(Rn)
+ Rgm = Register(Rm)
+ access = _MakeMemoryAccess(Rgn, Rgm, 0)
+
+ }
+
+ @rules {
+
+ }
+
+}
+
+@encoding(T2) {
+
+ @word 1 1 1 1 1 0 0 0 0 0 0 1 Rn(4) Rt(4) 0 0 0 0 0 0 imm2(2) Rm(4)
+
+ @syntax "ldrb.W" <Rgt>, <access>
+
+ @conv {
+
+ Rgt = Register(Rt)
+ Rgn = Register(Rn)
+ Rgm = Register(Rm)
+ shift = DecodeImmShift(0, imm2)
+ access = MakeShiftedMemoryAccess(Rgn, Rgm, shift, 0)
+
+ }
+
+ @rules {
+
+ //if Rn == '1111' then UNDEFINED;
+ //if t IN {13,15} || m IN {13,15} then UNPREDICTABLE;
+
+ if (Rt == '1111'); chk_call DefineAsReturn(1)
+
+ }
+
+}
+
+@encoding(A11) {
+
+ @word cond(4) 0 1 1 1 U(1) 1 W(1) 1 Rn(4) Rt(4) imm5(5) type(2) 0 Rm(4)
+
+ @syntax <Rgt> <access>
+
+ @conv {
+
+ Rgt = Register(Rt)
+ Rgn = Register(Rn)
+ Rgm = Register(Rm)
+ shift = DecodeImmShift(type, imm5)
+ access = MakeShiftedMemoryAccess(Rgn, Rgm, shift, W)
+
+ }
+
+ @rules {
+
+ //if P == '0' && W == '1' then SEE LDRBT;
+ //if t == 15 || m == 15 then UNPREDICTABLE;
+ //if wback && (n == 15 || n == t) then UNPREDICTABLE;
+ //if ArchVersion() < 6 && wback && m == n then UNPREDICTABLE;
+ if (Rt == '1111'); chk_call DefineAsReturn(1)
+
+ }
+
+}
+
+@encoding(A12) {
+
+ @word cond(4) 0 1 1 0 U(1) 1 W(1) 1 Rn(4) Rt(4) imm5(5) type(2) 0 Rm(4)
+
+ @syntax <Rgt> <base> <offset> <?shift>
+
+ @conv {
+
+ Rgt = Register(Rt)
+ Rgn = Register(Rn)
+ Rgm = Register(Rm)
+ base = MakeMemoryNotIndexed(Rgn, 1)
+ offset = MakeAccessOffset(U, Rgm)
+ shift = DecodeImmShift(type, imm5)
+
+ }
+
+ @rules {
+
+ //if P == '0' && W == '1' then SEE LDRBT;
+ //if t == 15 || m == 15 then UNPREDICTABLE;
+ //if wback && (n == 15 || n == t) then UNPREDICTABLE;
+ //if ArchVersion() < 6 && wback && m == n then UNPREDICTABLE;
+ if (Rt == '1111'); chk_call DefineAsReturn(1)
+
+ }
+
+}
diff --git a/src/arch/arm/v7/opdefs/strb_A88208.d b/src/arch/arm/v7/opdefs/strb_A88208.d
new file mode 100644
index 0000000..ab6c198
--- /dev/null
+++ b/src/arch/arm/v7/opdefs/strb_A88208.d
@@ -0,0 +1,127 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * ##FILE## - traduction d'instructions ARMv7
+ *
+ * Copyright (C) 2014 Cyrille Bagard
+ *
+ * This file is part of Chrysalide.
+ *
+ * Chrysalide is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Chrysalide is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Foobar. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+@title STRB (register)
+
+@encoding(t1) {
+
+ @half 0 1 0 1 0 1 0 Rm(3) Rn(3) Rt(3)
+
+ @syntax <Rgt> <access>
+
+ @conv {
+
+ Rgt = Register(Rt)
+ Rgn = Register(Rn)
+ Rgm = Register(Rm)
+ access = _MakeMemoryAccess(Rgn, Rgm, 0)
+
+ }
+
+ @rules {
+
+ }
+
+}
+
+@encoding(T2) {
+
+ @word 1 1 1 1 1 0 0 0 0 0 0 0 Rn(4) Rt(4) 0 0 0 0 0 0 imm2(2) Rm(4)
+
+ @syntax "strb.W" <Rgt>, <access>
+
+ @conv {
+
+ Rgt = Register(Rt)
+ Rgn = Register(Rn)
+ Rgm = Register(Rm)
+ shift = DecodeImmShift(0, imm2)
+ access = MakeShiftedMemoryAccess(Rgn, Rgm, shift, 0)
+
+ }
+
+ @rules {
+
+ //if Rn == '1111' then UNDEFINED;
+ //if t IN {13,15} || m IN {13,15} then UNPREDICTABLE;
+
+ if (Rt == '1111'); chk_call DefineAsReturn(1)
+
+ }
+
+}
+
+@encoding(A11) {
+
+ @word cond(4) 0 1 1 1 U(1) 1 W(1) 0 Rn(4) Rt(4) imm5(5) type(2) 0 Rm(4)
+
+ @syntax <Rgt> <access>
+
+ @conv {
+
+ Rgt = Register(Rt)
+ Rgn = Register(Rn)
+ Rgm = Register(Rm)
+ shift = DecodeImmShift(type, imm5)
+ access = MakeShiftedMemoryAccess(Rgn, Rgm, shift, W)
+
+ }
+
+ @rules {
+
+ //if P == '0' && W == '1' then SEE STRT;
+ //if Rn == '1101' && P == '1' && U == '0' && W == '1' && imm12 == '000000000100' then SEE PUSH;
+ //if wback && (n == 15 || n == t) then UNPREDICTABLE;
+ if (Rt == '1111'); chk_call DefineAsReturn(1)
+
+ }
+
+}
+
+@encoding(A12) {
+
+ @word cond(4) 0 1 1 0 U(1) 1 W(1) 0 Rn(4) Rt(4) imm5(5) type(2) 0 Rm(4)
+
+ @syntax <Rgt> <base> <offset> <?shift>
+
+ @conv {
+
+ Rgt = Register(Rt)
+ Rgn = Register(Rn)
+ Rgm = Register(Rm)
+ base = MakeMemoryNotIndexed(Rgn, 1)
+ offset = MakeAccessOffset(U, Rgm)
+ shift = DecodeImmShift(type, imm5)
+
+ }
+
+ @rules {
+
+ //if P == '0' && W == '1' then SEE STRT;
+ //if Rn == '1101' && P == '1' && U == '0' && W == '1' && imm12 == '000000000100' then SEE PUSH;
+ //if wback && (n == 15 || n == t) then UNPREDICTABLE;
+ if (Rt == '1111'); chk_call DefineAsReturn(1)
+
+ }
+
+}
diff --git a/src/arch/arm/v7/thumb_32.c b/src/arch/arm/v7/thumb_32.c
index 8fc4d91..9d9de57 100644
--- a/src/arch/arm/v7/thumb_32.c
+++ b/src/arch/arm/v7/thumb_32.c
@@ -61,6 +61,10 @@ static GArchInstruction *process_armv7_thumb_32_load_word(uint32_t);
+
+/* Désassemble une instruction ARMv7 classique. */
+static GArchInstruction *process_armv7_thumb_32_load_byte_memory_hints(uint32_t);
+
/* Désassemble une instruction ARMv7 classique. */
static GArchInstruction *process_armv7_thumb_32_store_single_data_item(uint32_t);
@@ -93,7 +97,7 @@ static GArchInstruction *process_armv7_thumb_32_long_multiply_long_multiply_accu
#define process_armv7_thumb_32_load_store_dual_load_store_exclusive_table_branch(r) NULL
#define process_armv7_thumb_32_coprocessor_advanced_simd_and_floating_point_instructions(r) NULL
-#define process_armv7_thumb_32_load_byte_memory_hints(r) NULL
+
#define process_armv7_thumb_32_load_halfword_memory_hints(r) NULL
#define process_armv7_thumb_32_advanced_simd_element_or_structure_load_store_instructions(r) NULL
#define process_armv7_thumb_32_move_register_and_immediate_shifts(r) NULL
@@ -826,6 +830,125 @@ static GArchInstruction *process_armv7_thumb_32_load_word(uint32_t raw)
+
+
+
+
+/******************************************************************************
+* *
+* Paramètres : raw = donnée brute de 32 bits à désassembler. *
+* *
+* Description : Désassemble une instruction ARMv7 classique. *
+* *
+* Retour : Instruction mise en place ou NULL en cas d'échec. *
+* *
+* Remarques : - *
+* *
+******************************************************************************/
+
+static GArchInstruction *process_armv7_thumb_32_load_byte_memory_hints(uint32_t raw)
+{
+ GArchInstruction *result; /* Instruction à renvoyer */
+ uint32_t op1; /* Champ 'op1' à retrouver */
+ uint32_t rn; /* Champ 'rn' à retrouver */
+ uint32_t rt; /* Champ 'rt' à retrouver */
+ uint32_t op2; /* Champ 'op2' à retrouver */
+
+ /**
+ * Suit les directives de :
+ * § A6.3.9 Load byte, memory hints
+ */
+
+ if ((raw & 0xfe700000) != 0xf8100000) return NULL;
+
+ result = NULL;
+
+ op1 = (raw >> 23) & b11;
+ rn = (raw >> 16) & b1111;
+ rt = (raw >> 12) & b1111;
+ op2 = (raw >> 6) & b111111;
+
+ if (op1 == b00 && op2 == b000000 && rn != b1111)
+ {
+ if (rt != b1111)
+ result = armv7_read_thumb_32_instr_ldrb_register(raw);
+ else /*if (rt == b1111) */
+ result = armv7_read_thumb_32_instr_pld_register(raw);
+ }
+
+ else if ((op1 & b10) == b00 && rn == b1111)
+ {
+ if (rt != b1111)
+ result = armv7_read_thumb_32_instr_ldrb_literal(raw);
+ else /*if (rt == b1111) */
+ result = armv7_read_thumb_32_instr_pld_literal(raw);
+ }
+
+ else if (op1 == b00 && (op2 & b100100) == b100100 && rn != b1111)
+ result = armv7_read_thumb_32_instr_ldrb_immediate_thumb(raw);
+
+ else if (op1 == b00 && (op2 & b111100) == b110000 && rn != b1111)
+ {
+ if (rt != b1111)
+ result = armv7_read_thumb_32_instr_ldrb_immediate_thumb(raw);
+ else /*if (rt == b1111) */
+ result = armv7_read_thumb_32_instr_pld_immediate(raw);
+ }
+
+ else if (op1 == b00 && (op2 & b111100) == b111000 && rn != b1111)
+ result = armv7_read_thumb_32_instr_ldrbt(raw);
+
+ else if (op1 == b01 && rn != b1111)
+ {
+ if (rt != b1111)
+ result = armv7_read_thumb_32_instr_ldrb_immediate_thumb(raw);
+ else /*if (rt == b1111) */
+ result = armv7_read_thumb_32_instr_pld_immediate(raw);
+ }
+
+ if (op1 == b10 && op2 == b000000 && rn != b1111)
+ {
+ if (rt != b1111)
+ result = armv7_read_thumb_32_instr_ldrsb_register(raw);
+ else /*if (rt == b1111) */
+ result = armv7_read_thumb_32_instr_pli_register(raw);
+ }
+
+ else if ((op1 & b10) == b10 && rn == b1111)
+ {
+ if (rt != b1111)
+ result = armv7_read_thumb_32_instr_ldrsb_literal(raw);
+ else /*if (rt == b1111) */
+ result = armv7_read_thumb_32_instr_pli_immediate_literal(raw);
+ }
+
+ else if (op1 == b10 && (op2 & b100100) == b100100 && rn != b1111)
+ result = armv7_read_thumb_32_instr_ldrsb_immediate(raw);
+
+ else if (op1 == b10 && (op2 & b111100) == b110000 && rn != b1111)
+ {
+ if (rt != b1111)
+ result = armv7_read_thumb_32_instr_ldrsb_immediate(raw);
+ else /*if (rt == b1111) */
+ result = armv7_read_thumb_32_instr_pli_immediate_literal(raw);
+ }
+
+ else if (op1 == b10 && (op2 & b111100) == b111000 && rn != b1111)
+ result = armv7_read_thumb_32_instr_ldrsbt(raw);
+
+ else if (op1 == b11 && rn != b1111)
+ {
+ if (rt != b1111)
+ result = armv7_read_thumb_32_instr_ldrsb_immediate(raw);
+ else /*if (rt == b1111) */
+ result = armv7_read_thumb_32_instr_pli_immediate_literal(raw);
+ }
+
+ return result;
+
+}
+
+
/******************************************************************************
* *
* Paramètres : raw = donnée brute de 32 bits à désassembler. *
generated by cgit v0.11.2-87-g4458 at 2024-12-27 05:51:35 (GMT)