fix jmp rels
This commit is contained in:
parent
bce8e8356f
commit
855893ee09
SSH key fingerprint:
SHA256:bB1qbbqmDXZNT0KKD5c2Dfjg53JGhj7B3CFcLIzSqq8
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@ -14,8 +14,8 @@
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3e 00
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3e 00
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# e_version: u32 = EV_CURRENT
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# e_version: u32 = EV_CURRENT
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01 00 00 00
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01 00 00 00
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# e_entry: u64 = 0x400000
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# e_entry: u64 = 0x400078
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00 00 40 00 00 00 00 00
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78 00 40 00 00 00 00 00
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# e_phoff: u64 = 0x40
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# e_phoff: u64 = 0x40
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40 00 00 00 00 00 00 00
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40 00 00 00 00 00 00 00
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# e_shoff: u64 = 0x0
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# e_shoff: u64 = 0x0
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@ -47,24 +47,24 @@
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00 00 40 00 00 00 00 00
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00 00 40 00 00 00 00 00
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# p_paddr: u64 = 0x0
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# p_paddr: u64 = 0x0
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00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00
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# p_filesz: u64 = 0x164
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# p_filesz: u64 = 0x167
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64 01 00 00 00 00 00 00
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67 01 00 00 00 00 00 00
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# p_memsz: u64 = 0x1000
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# p_memsz: u64 = 0x167
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00 10 00 00 00 00 00 00
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67 01 00 00 00 00 00 00
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# p_align: u64 = 0x1000
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# p_align: u64 = 0x1000
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00 10 00 00 00 00 00 00
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00 10 00 00 00 00 00 00
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# End of program header
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# End of program header
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#
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#
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# Code segment (offset 0x40, virtual address 0x400000)
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# Code segment (offset 0x40, virtual address 0x400000)
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#
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#
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# _start:
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# _start=120:
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# ; alloca 0x1000 bytes on the stack
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# ; alloca 0x1000 bytes on the stack
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# mov rbp, rsp
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# mov rbp, rsp
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48 89 e5
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48 89 e5
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# sub rsp, 0x1000
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# sub rsp, 0x1000
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48 81 ec 00 10 00 00
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48 81 ec 00 10 00 00
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# ; read 0x800 bytes from stdin into the stack
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# ; read 0x800 bytes from stdin into the stack
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# .READ: (_start+10)
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# .READ: (130)
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# xor rax, rax
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# xor rax, rax
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48 31 c0
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48 31 c0
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# mov edi, 0 (stdin)
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# mov edi, 0 (stdin)
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@ -78,8 +78,8 @@
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# cmp rax, 0
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# cmp rax, 0
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48 83 f8 00
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48 83 f8 00
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# jle die
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# jle die
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0f 8e a1 00 00 00 # 203 - 42 = 161 = 0xa1
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0f 8e a8 00 00 00
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## (_start+42)
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## (162)
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# ; end = r8
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# ; end = r8
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# mov r8, rax
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# mov r8, rax
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49 89 c0
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49 89 c0
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@ -94,35 +94,39 @@
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# add r10, 0x800
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# add r10, 0x800
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49 81 c2 00 08 00 00
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49 81 c2 00 08 00 00
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# ; while (pos < end) {
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# ; while (pos < end) {
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# ; .L0: (_start+61)
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# ; .L0: (181)
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# cmp r9, r8
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# cmp r9, r8
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4d 39 c1
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4d 39 c1
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# jge .L3
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# jge .L3
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0f 8d 60 00 00 00 ; 166 - 70 = 96 = 0x60
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0f 8d 67 00 00 00
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# (_start+70)
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# (190)
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#
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#
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# ; if (*pos == '#') {
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# ; if (*pos == '#') {
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# mov al , byte [r9]
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# mov al , byte [r9]
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41 8a 41 00
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41 8a 41 00
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# cmp al, '#'
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# cmp al, '#'
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3c 23
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3c 23
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# jne .L1 ; 100 - 82 = 18 = 0x12
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# jne .L1
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0f 85 12 00 00 00
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0f 85 15 00 00 00
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# (_start+82)
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# (202)
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# ; while (*pos != '\n') pos++;
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# ; while (*pos != '\n') pos++;
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# ; .L2: (_start+82)
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# ; .L2: (202)
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# inc r9
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# inc r9
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49 ff c1
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49 ff c1
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# cmp byte [r9], '\n'
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# cmp byte [r9], '\n'
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41 80 39 0a
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41 80 39 0a
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# jne .L2 ; 82 - 95 = -13 = 0xfffffffffffffff3 = 0xf3
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# jne .L2
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0f 85 f3 ff ff ff
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0f 85 f3 ff ff ff
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# (_start+95)
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# (215)
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# jmp .L0 ; 61 - 100 = -39 = 0xfffffffffffffd89 = 0xfd89
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# inc r9
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e9 89 fd ff ff
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49 ff c1
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# (_start+100)
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# jmp .L0
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# ; .L1: (_start+100)
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e9 d6 ff ff ff
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# (223)
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# ; .L1: (223)
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# ; convert *pos to high word
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# ; convert *pos to high word
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# mov al, byte [r9]
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41 8a 01
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# mov bl, al
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# mov bl, al
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88 c3
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88 c3
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# sub bl, 'a'
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# sub bl, 'a'
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@ -162,20 +166,20 @@ c0 e0 04
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# mov byte [r10], al
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# mov byte [r10], al
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41 88 02
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41 88 02
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# inc r10
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# inc r10
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41 ff c2
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49 ff c2
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# ; if (*pos != '\n') pos++;
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# cmp byte [r9], '\n'
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41 80 39 0a
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# inc r9
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# inc r9
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49 ff c1
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49 ff c1
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# je .L0 ; 61 - 161 = -100 = 0xffffffffffffff9c = 0x9c
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# ; if (*pos++ == '\n') goto .L1;
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0f 84 9c ff ff ff
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# cmp byte [r9], '\n'
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## (_start+161)
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41 80 39 0a
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# jmp .L1 ; 100 - 166 = -66 = 0xffffffffffffffbe = 0xbe
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# je .L0
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e9 be ff ff ff
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0f 84 95 ff ff ff
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## (_start+166)
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## (288)
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# jmp .L1 ; - 293
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e9 ba ff ff ff
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## (293)
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# ; }
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# ; }
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# .L3: (_start+166)
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# .L3: (293)
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# ; write the decoded bytes to stdout
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# ; write the decoded bytes to stdout
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# mov rax, 1 (sys_write)
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# mov rax, 1 (sys_write)
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48 c7 c0 01 00 00 00
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48 c7 c0 01 00 00 00
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@ -191,11 +195,11 @@ e9 be ff ff ff
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48 29 f2
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48 29 f2
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# syscall
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# syscall
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0f 05
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0f 05
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# jmp .READ ; 10 - 203 = -193 = 0xffffffffffffff3f = 0x3f
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# jmp .READ ; 130 - 330 = -200 = 0xffffffffffffff38
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e9 3f ff ff ff
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e9 38 ff ff ff
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## (_start+203)
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## (330)
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#
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#
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# die: (_start+203)
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# die: (330)
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# mov rax, 60 (sys_exit)
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# mov rax, 60 (sys_exit)
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48 c7 c0 3c 00 00 00
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48 c7 c0 3c 00 00 00
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# xor rdi, rdi
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# xor rdi, rdi
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