objdump mips u-boot.bin can't disassembly 1000013f which is branch instruction
I tried disassembly u-boot.bin
$ mips-unknown-linux-gnu-objdump -b binary -m mips:isa32
--adjust-vma=0x81000000 -D output/u-boot-2018.09/u-boot.bin
it out the raw instruction, can't recognize the branch code
81000000: 1000013f 0x3f010010
That is the first instruction is start.S
b reset
But if I disassembly start.o
$ mips-unknown-linux-gnu-objdump -d --adjust-vma=0x81000000 -D
output/u-boot-2018.09/arch/mips/cpu/start.o
output:
81000000 <_start+0x0>:
81000000: 1000013f b 81000500 <reset>
that disassembly correctly. why disassembly u-boot.bin can't recognize branch instruction.
mips disassembly u-boot
asked Nov 15 '18 at 17:19
yuanjianpengyuanjianpeng
465
add a comment |
I tried disassembly u-boot.bin
$ mips-unknown-linux-gnu-objdump -b binary -m mips:isa32
--adjust-vma=0x81000000 -D output/u-boot-2018.09/u-boot.bin
it out the raw instruction, can't recognize the branch code
81000000: 1000013f 0x3f010010
That is the first instruction is start.S
b reset
But if I disassembly start.o
$ mips-unknown-linux-gnu-objdump -d --adjust-vma=0x81000000 -D
output/u-boot-2018.09/arch/mips/cpu/start.o
output:
81000000 <_start+0x0>:
81000000: 1000013f b 81000500 <reset>
that disassembly correctly. why disassembly u-boot.bin can't recognize branch instruction.
mips disassembly u-boot
asked Nov 15 '18 at 17:19
yuanjianpengyuanjianpeng
465
add an option -EB to specify big endian format when disassembling, then works fine
– yuanjianpeng
Nov 16 '18 at 14:20
add a comment |
I tried disassembly u-boot.bin
$ mips-unknown-linux-gnu-objdump -b binary -m mips:isa32
--adjust-vma=0x81000000 -D output/u-boot-2018.09/u-boot.bin
it out the raw instruction, can't recognize the branch code
81000000: 1000013f 0x3f010010
That is the first instruction is start.S
b reset
But if I disassembly start.o
$ mips-unknown-linux-gnu-objdump -d --adjust-vma=0x81000000 -D
output/u-boot-2018.09/arch/mips/cpu/start.o
output:
81000000 <_start+0x0>:
81000000: 1000013f b 81000500 <reset>
that disassembly correctly. why disassembly u-boot.bin can't recognize branch instruction.
mips disassembly u-boot
asked Nov 15 '18 at 17:19
yuanjianpengyuanjianpeng
465
I tried disassembly u-boot.bin
$ mips-unknown-linux-gnu-objdump -b binary -m mips:isa32
--adjust-vma=0x81000000 -D output/u-boot-2018.09/u-boot.bin
it out the raw instruction, can't recognize the branch code
81000000: 1000013f 0x3f010010
That is the first instruction is start.S
b reset
But if I disassembly start.o
$ mips-unknown-linux-gnu-objdump -d --adjust-vma=0x81000000 -D
output/u-boot-2018.09/arch/mips/cpu/start.o
output:
81000000 <_start+0x0>:
81000000: 1000013f b 81000500 <reset>
that disassembly correctly. why disassembly u-boot.bin can't recognize branch instruction.
mips disassembly u-boot
mips disassembly u-boot
asked Nov 15 '18 at 17:19
yuanjianpengyuanjianpeng
465
asked Nov 15 '18 at 17:19
yuanjianpengyuanjianpeng
465
asked Nov 15 '18 at 17:19
yuanjianpengyuanjianpeng
465
asked Nov 15 '18 at 17:19
yuanjianpengyuanjianpeng
465
asked Nov 15 '18 at 17:19
yuanjianpengyuanjianpeng
465
465
add an option -EB to specify big endian format when disassembling, then works fine
– yuanjianpeng
Nov 16 '18 at 14:20
add a comment |
add an option -EB to specify big endian format when disassembling, then works fine
– yuanjianpeng
Nov 16 '18 at 14:20
add an option -EB to specify big endian format when disassembling, then works fine
– yuanjianpeng
Nov 16 '18 at 14:20
add an option -EB to specify big endian format when disassembling, then works fine
– yuanjianpeng
Nov 16 '18 at 14:20
add a comment |
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add an option -EB to specify big endian format when disassembling, then works fine
– yuanjianpeng
Nov 16 '18 at 14:20