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#!/bin/bash
[ -f testing.sh ] && . testing.sh
#testing "name" "command" "result" "infile" "stdin"
elf=$FILES/elf/ndk-elf-note
# toybox uses Linux kernel architecture names, so rewrite binutils with sed.
NOSPACE=1 testing "-h" "readelf -hW $elf-full | sed s/AArch64/arm64/g" \
"ELF Header:
Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00
Class: ELF64
Data: 2's complement, little endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: DYN (Shared object file)
Machine: arm64
Version: 0x1
Entry point address: 0x660
Start of program headers: 64 (bytes into file)
Start of section headers: 7776 (bytes into file)
Flags: 0x0
Size of this header: 64 (bytes)
Size of program headers: 56 (bytes)
Number of program headers: 9
Size of section headers: 64 (bytes)
Number of section headers: 32
Section header string table index: 29
" "" ""
# We format the key to flags differently and don't include obsolete ones.
NOSPACE=1 testing "-S" "readelf -SW $elf-full | head -36" \
"There are 32 section headers, starting at offset 0x1e60:
Section Headers:
[Nr] Name Type Address Off Size ES Flg Lk Inf Al
[ 0] NULL 0000000000000000 000000 000000 00 0 0 0
[ 1] .interp PROGBITS 0000000000000238 000238 000015 00 A 0 0 1
[ 2] .note.android.ident NOTE 0000000000000250 000250 000098 00 A 0 0 4
[ 3] .note.gnu.build-id NOTE 00000000000002e8 0002e8 000024 00 A 0 0 4
[ 4] .hash HASH 0000000000000310 000310 000048 04 A 5 0 8
[ 5] .dynsym DYNSYM 0000000000000358 000358 000138 18 A 6 3 8
[ 6] .dynstr STRTAB 0000000000000490 000490 000097 00 A 0 0 1
[ 7] .gnu.version VERSYM 0000000000000528 000528 00001a 02 A 5 0 2
[ 8] .gnu.version_r VERNEED 0000000000000548 000548 000020 00 A 6 1 8
[ 9] .rela.dyn RELA 0000000000000568 000568 000060 18 A 5 0 8
[10] .rela.plt RELA 00000000000005c8 0005c8 000048 18 AI 5 19 8
[11] .plt PROGBITS 0000000000000610 000610 000050 10 AX 0 0 16
[12] .text PROGBITS 0000000000000660 000660 00008c 00 AX 0 0 4
[13] .eh_frame_hdr PROGBITS 00000000000006ec 0006ec 000014 00 A 0 0 4
[14] .eh_frame PROGBITS 0000000000000700 000700 000030 00 A 0 0 8
[15] .preinit_array PREINIT_ARRAY 0000000000010d68 000d68 000010 08 WA 0 0 8
[16] .init_array INIT_ARRAY 0000000000010d78 000d78 000010 08 WA 0 0 8
[17] .fini_array FINI_ARRAY 0000000000010d88 000d88 000010 08 WA 0 0 8
[18] .dynamic DYNAMIC 0000000000010d98 000d98 000210 10 WA 6 0 8
[19] .got PROGBITS 0000000000010fa8 000fa8 000058 08 WA 0 0 8
[20] .bss NOBITS 0000000000011000 001000 000008 00 WA 0 0 8
[21] .comment PROGBITS 0000000000000000 001000 000107 01 MS 0 0 1
[22] .debug_pubnames PROGBITS 0000000000000000 001107 00001b 00 0 0 1
[23] .debug_info PROGBITS 0000000000000000 001122 00004b 00 0 0 1
[24] .debug_abbrev PROGBITS 0000000000000000 00116d 000037 00 0 0 1
[25] .debug_line PROGBITS 0000000000000000 0011a4 00003f 00 0 0 1
[26] .debug_str PROGBITS 0000000000000000 0011e3 000138 01 MS 0 0 1
[27] .debug_macinfo PROGBITS 0000000000000000 00131b 000001 00 0 0 1
[28] .debug_pubtypes PROGBITS 0000000000000000 00131c 00001a 00 0 0 1
[29] .shstrtab STRTAB 0000000000000000 001d0c 000151 00 0 0 1
[30] .symtab SYMTAB 0000000000000000 001338 0007e0 18 31 68 8
[31] .strtab STRTAB 0000000000000000 001b18 0001f4 00 0 0 1
" "" ""
testing "-l" "readelf -lW $elf-short" "
Elf file type is DYN (Shared object file)
Entry point 0x1001
There are 10 program headers, starting at offset 52
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
PHDR 0x000034 0x00000034 0x00000034 0x00140 0x00140 R 0x4
INTERP 0x000174 0x00000174 0x00000174 0x00013 0x00013 R 0x1
[Requesting program interpreter: /system/bin/linker]
LOAD 0x000000 0x00000000 0x00000000 0x00404 0x00404 R 0x1000
LOAD 0x001000 0x00001000 0x00001000 0x00140 0x00140 R E 0x1000
LOAD 0x002000 0x00002000 0x00002000 0x00144 0x00144 RW 0x1000
DYNAMIC 0x002018 0x00002018 0x00002018 0x00100 0x00100 RW 0x4
GNU_RELRO 0x002000 0x00002000 0x00002000 0x00144 0x01000 R 0x1
GNU_STACK 0x000000 0x00000000 0x00000000 0x00000 0x00000 RW 0
NOTE 0x000188 0x00000188 0x00000188 0x00038 0x00038 R 0x4
EXIDX 0x0001c0 0x000001c0 0x000001c0 0x00030 0x00030 R 0x4
Section to Segment mapping:
Segment Sections...
00
01 .interp
02 .interp .note.android.ident .note.gnu.build-id .ARM.exidx .dynsym .gnu.version .gnu.version_r .gnu.hash .dynstr .rel.dyn .relr.dyn .rel.plt
03 .text .plt
04 .preinit_array .init_array .fini_array .dynamic .got .got.plt
05 .dynamic
06 .preinit_array .init_array .fini_array .dynamic .got .got.plt
07
08 .note.android.ident .note.gnu.build-id
09 .ARM.exidx
" "" ""
# binutils doesn't line up the column headers for 64-bit ELF files.
# TODO: binutils readelf lies about trailing NULL entires binutils ld produces
NOSPACE=1 toyonly testing "-d" "readelf -dW $elf-full" "
Dynamic section at offset 0xd98 contains 33 entries:
Tag Type Name/Value
0x0000000000000001 (NEEDED) Shared library: [libc.so]
0x0000000000000001 (NEEDED) Shared library: [libm.so]
0x0000000000000001 (NEEDED) Shared library: [libdl.so]
0x0000000000000020 (PREINIT_ARRAY) 0x10d68
0x0000000000000021 (PREINIT_ARRAYSZ) 0x10
0x0000000000000019 (INIT_ARRAY) 0x10d78
0x000000000000001b (INIT_ARRAYSZ) 16 (bytes)
0x000000000000001a (FINI_ARRAY) 0x10d88
0x000000000000001c (FINI_ARRAYSZ) 16 (bytes)
0x0000000000000004 (HASH) 0x310
0x0000000000000005 (STRTAB) 0x490
0x0000000000000006 (SYMTAB) 0x358
0x000000000000000a (STRSZ) 151 (bytes)
0x000000000000000b (SYMENT) 24 (bytes)
0x0000000000000015 (DEBUG) 0x0
0x0000000000000003 (PLTGOT) 0x10fa8
0x0000000000000002 (PLTRELSZ) 72 (bytes)
0x0000000000000014 (PLTREL) RELA
0x0000000000000017 (JMPREL) 0x5c8
0x0000000000000007 (RELA) 0x568
0x0000000000000008 (RELASZ) 96 (bytes)
0x0000000000000009 (RELAENT) 24 (bytes)
0x000000000000001e (FLAGS) BIND_NOW
0x000000006ffffffb (FLAGS_1) Flags: NOW
0x000000006ffffffe (VERNEED) 0x548
0x000000006fffffff (VERNEEDNUM) 1
0x000000006ffffff0 (VERSYM) 0x528
0x000000006ffffff9 (RELACOUNT) 4
0x0000000000000000 (NULL) 0x0
0x0000000000000000 (NULL) 0x0
0x0000000000000000 (NULL) 0x0
0x0000000000000000 (NULL) 0x0
0x0000000000000000 (NULL) 0x0
" "" ""
# toybox does a better job of decoding Android's ELF notes than binutils.
toyonly testing "-n" "readelf -nW $elf-short" "
Displaying notes found in: .note.android.ident
Owner Data size Description
Android 0x00000004 NT_VERSION API level 28
Displaying notes found in: .note.gnu.build-id
Owner Data size Description
GNU 0x00000010 NT_GNU_BUILD_ID da6a5f4ca8da163b9339326e626d8a3c
" "" ""
testing "-p" "readelf -p22 $elf-short" "
String dump of section '.shstrtab':
[ 1] .preinit_array
[ 10] .init_array
[ 1c] .fini_array
[ 28] .ARM.exidx
[ 33] .text
[ 39] .got
[ 3e] .note.android.ident
[ 52] .got.plt
[ 5b] .rel.plt
[ 64] .ARM.attributes
[ 74] .dynstr
[ 7c] .gnu.version_r
[ 8b] .interp
[ 93] .relr.dyn
[ 9d] .rel.dyn
[ a6] .gnu.version
[ b3] .dynsym
[ bb] .gnu.hash
[ c5] .note.gnu.build-id
[ d8] .dynamic
[ e1] .shstrtab
[ eb] .gnu_debugdata
" "" ""
testing "-x" "readelf -x22 $elf-short" "
Hex dump of section '.shstrtab':
0x00000000 002e7072 65696e69 745f6172 72617900 ..preinit_array.
0x00000010 2e696e69 745f6172 72617900 2e66696e .init_array..fin
0x00000020 695f6172 72617900 2e41524d 2e657869 i_array..ARM.exi
0x00000030 6478002e 74657874 002e676f 74002e6e dx..text..got..n
0x00000040 6f74652e 616e6472 6f69642e 6964656e ote.android.iden
0x00000050 74002e67 6f742e70 6c74002e 72656c2e t..got.plt..rel.
0x00000060 706c7400 2e41524d 2e617474 72696275 plt..ARM.attribu
0x00000070 74657300 2e64796e 73747200 2e676e75 tes..dynstr..gnu
0x00000080 2e766572 73696f6e 5f72002e 696e7465 .version_r..inte
0x00000090 7270002e 72656c72 2e64796e 002e7265 rp..relr.dyn..re
0x000000a0 6c2e6479 6e002e67 6e752e76 65727369 l.dyn..gnu.versi
0x000000b0 6f6e002e 64796e73 796d002e 676e752e on..dynsym..gnu.
0x000000c0 68617368 002e6e6f 74652e67 6e752e62 hash..note.gnu.b
0x000000d0 75696c64 2d696400 2e64796e 616d6963 uild-id..dynamic
0x000000e0 002e7368 73747274 6162002e 676e755f ..shstrtab..gnu_
0x000000f0 64656275 67646174 61000000 000000 debugdata......
" "" ""
# TODO: remove the sed when we handle symbol versions
testing "-s" "readelf -s $elf-short | sed s/@.*//" "
Symbol table '.dynsym' contains 11 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 00000000 0 NOTYPE LOCAL DEFAULT UND
1: 00000000 0 FUNC GLOBAL DEFAULT UND __libc_init
2: 00000000 0 FUNC GLOBAL DEFAULT UND __stack_chk_fail
3: 00000000 0 OBJECT GLOBAL DEFAULT UND __stack_chk_guard
4: 00000000 0 FUNC GLOBAL DEFAULT UND memset
5: 000010d8 12 FUNC GLOBAL DEFAULT 13 __aeabi_memclr
6: 000010d8 12 FUNC GLOBAL DEFAULT 13 __aeabi_memclr4
7: 000010d8 12 FUNC GLOBAL DEFAULT 13 __aeabi_memclr8
8: 000010c8 16 FUNC GLOBAL DEFAULT 13 __aeabi_memset
9: 000010c8 16 FUNC GLOBAL DEFAULT 13 __aeabi_memset4
10: 000010c8 16 FUNC GLOBAL DEFAULT 13 __aeabi_memset8
" "" ""
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