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      1 // Copyright 2014 The Go Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style
      3 // license that can be found in the LICENSE file.
      4 
      5 package elf
      6 
      7 import (
      8 	"io"
      9 	"path"
     10 	"reflect"
     11 	"testing"
     12 )
     13 
     14 // TODO: remove duplicate code
     15 func TestSymbols(t *testing.T) {
     16 	do := func(file string, ts []Symbol, getfunc func(*File) ([]Symbol, error)) {
     17 		var f *File
     18 		var err error
     19 		if path.Ext(file) == ".gz" {
     20 			var r io.ReaderAt
     21 			if r, err = decompress(file); err == nil {
     22 				f, err = NewFile(r)
     23 			}
     24 		} else {
     25 			f, err = Open(file)
     26 		}
     27 		if err != nil {
     28 			t.Errorf("TestSymbols: cannot open file %s: %v", file, err)
     29 			return
     30 		}
     31 		defer f.Close()
     32 		fs, err := getfunc(f)
     33 		if err != nil && err != ErrNoSymbols {
     34 			t.Error(err)
     35 			return
     36 		} else if err == ErrNoSymbols {
     37 			fs = []Symbol{}
     38 		}
     39 		if !reflect.DeepEqual(ts, fs) {
     40 			t.Errorf("%s: Symbols = %v, want %v", file, ts, fs)
     41 		}
     42 	}
     43 	for file, ts := range symbolsGolden {
     44 		do(file, ts, (*File).Symbols)
     45 	}
     46 	for file, ts := range dynamicSymbolsGolden {
     47 		do(file, ts, (*File).DynamicSymbols)
     48 	}
     49 }
     50 
     51 // golden symbol table data generated by testdata/getgoldsym.c
     52 
     53 var symbolsGolden = map[string][]Symbol{
     54 	"testdata/gcc-amd64-linux-exec": {
     55 		Symbol{
     56 			Name:    "",
     57 			Info:    0x3,
     58 			Other:   0x0,
     59 			Section: 0x1,
     60 			Value:   0x400200,
     61 			Size:    0x0,
     62 		},
     63 		Symbol{
     64 			Name:    "",
     65 			Info:    0x3,
     66 			Other:   0x0,
     67 			Section: 0x2,
     68 			Value:   0x40021C,
     69 			Size:    0x0,
     70 		},
     71 		Symbol{
     72 			Name:    "",
     73 			Info:    0x3,
     74 			Other:   0x0,
     75 			Section: 0x3,
     76 			Value:   0x400240,
     77 			Size:    0x0,
     78 		},
     79 		Symbol{
     80 			Name:    "",
     81 			Info:    0x3,
     82 			Other:   0x0,
     83 			Section: 0x4,
     84 			Value:   0x400268,
     85 			Size:    0x0,
     86 		},
     87 		Symbol{
     88 			Name:    "",
     89 			Info:    0x3,
     90 			Other:   0x0,
     91 			Section: 0x5,
     92 			Value:   0x400288,
     93 			Size:    0x0,
     94 		},
     95 		Symbol{
     96 			Name:    "",
     97 			Info:    0x3,
     98 			Other:   0x0,
     99 			Section: 0x6,
    100 			Value:   0x4002E8,
    101 			Size:    0x0,
    102 		},
    103 		Symbol{
    104 			Name:    "",
    105 			Info:    0x3,
    106 			Other:   0x0,
    107 			Section: 0x7,
    108 			Value:   0x400326,
    109 			Size:    0x0,
    110 		},
    111 		Symbol{
    112 			Name:    "",
    113 			Info:    0x3,
    114 			Other:   0x0,
    115 			Section: 0x8,
    116 			Value:   0x400330,
    117 			Size:    0x0,
    118 		},
    119 		Symbol{
    120 			Name:    "",
    121 			Info:    0x3,
    122 			Other:   0x0,
    123 			Section: 0x9,
    124 			Value:   0x400350,
    125 			Size:    0x0,
    126 		},
    127 		Symbol{
    128 			Name:    "",
    129 			Info:    0x3,
    130 			Other:   0x0,
    131 			Section: 0xA,
    132 			Value:   0x400368,
    133 			Size:    0x0,
    134 		},
    135 		Symbol{
    136 			Name:    "",
    137 			Info:    0x3,
    138 			Other:   0x0,
    139 			Section: 0xB,
    140 			Value:   0x400398,
    141 			Size:    0x0,
    142 		},
    143 		Symbol{
    144 			Name:    "",
    145 			Info:    0x3,
    146 			Other:   0x0,
    147 			Section: 0xC,
    148 			Value:   0x4003B0,
    149 			Size:    0x0,
    150 		},
    151 		Symbol{
    152 			Name:    "",
    153 			Info:    0x3,
    154 			Other:   0x0,
    155 			Section: 0xD,
    156 			Value:   0x4003E0,
    157 			Size:    0x0,
    158 		},
    159 		Symbol{
    160 			Name:    "",
    161 			Info:    0x3,
    162 			Other:   0x0,
    163 			Section: 0xE,
    164 			Value:   0x400594,
    165 			Size:    0x0,
    166 		},
    167 		Symbol{
    168 			Name:    "",
    169 			Info:    0x3,
    170 			Other:   0x0,
    171 			Section: 0xF,
    172 			Value:   0x4005A4,
    173 			Size:    0x0,
    174 		},
    175 		Symbol{
    176 			Name:    "",
    177 			Info:    0x3,
    178 			Other:   0x0,
    179 			Section: 0x10,
    180 			Value:   0x4005B8,
    181 			Size:    0x0,
    182 		},
    183 		Symbol{
    184 			Name:    "",
    185 			Info:    0x3,
    186 			Other:   0x0,
    187 			Section: 0x11,
    188 			Value:   0x4005E0,
    189 			Size:    0x0,
    190 		},
    191 		Symbol{
    192 			Name:    "",
    193 			Info:    0x3,
    194 			Other:   0x0,
    195 			Section: 0x12,
    196 			Value:   0x600688,
    197 			Size:    0x0,
    198 		},
    199 		Symbol{
    200 			Name:    "",
    201 			Info:    0x3,
    202 			Other:   0x0,
    203 			Section: 0x13,
    204 			Value:   0x600698,
    205 			Size:    0x0,
    206 		},
    207 		Symbol{
    208 			Name:    "",
    209 			Info:    0x3,
    210 			Other:   0x0,
    211 			Section: 0x14,
    212 			Value:   0x6006A8,
    213 			Size:    0x0,
    214 		},
    215 		Symbol{
    216 			Name:    "",
    217 			Info:    0x3,
    218 			Other:   0x0,
    219 			Section: 0x15,
    220 			Value:   0x6006B0,
    221 			Size:    0x0,
    222 		},
    223 		Symbol{
    224 			Name:    "",
    225 			Info:    0x3,
    226 			Other:   0x0,
    227 			Section: 0x16,
    228 			Value:   0x600850,
    229 			Size:    0x0,
    230 		},
    231 		Symbol{
    232 			Name:    "",
    233 			Info:    0x3,
    234 			Other:   0x0,
    235 			Section: 0x17,
    236 			Value:   0x600858,
    237 			Size:    0x0,
    238 		},
    239 		Symbol{
    240 			Name:    "",
    241 			Info:    0x3,
    242 			Other:   0x0,
    243 			Section: 0x18,
    244 			Value:   0x600880,
    245 			Size:    0x0,
    246 		},
    247 		Symbol{
    248 			Name:    "",
    249 			Info:    0x3,
    250 			Other:   0x0,
    251 			Section: 0x19,
    252 			Value:   0x600898,
    253 			Size:    0x0,
    254 		},
    255 		Symbol{
    256 			Name:    "",
    257 			Info:    0x3,
    258 			Other:   0x0,
    259 			Section: 0x1A,
    260 			Value:   0x0,
    261 			Size:    0x0,
    262 		},
    263 		Symbol{
    264 			Name:    "",
    265 			Info:    0x3,
    266 			Other:   0x0,
    267 			Section: 0x1B,
    268 			Value:   0x0,
    269 			Size:    0x0,
    270 		},
    271 		Symbol{
    272 			Name:    "",
    273 			Info:    0x3,
    274 			Other:   0x0,
    275 			Section: 0x1C,
    276 			Value:   0x0,
    277 			Size:    0x0,
    278 		},
    279 		Symbol{
    280 			Name:    "",
    281 			Info:    0x3,
    282 			Other:   0x0,
    283 			Section: 0x1D,
    284 			Value:   0x0,
    285 			Size:    0x0,
    286 		},
    287 		Symbol{
    288 			Name:    "",
    289 			Info:    0x3,
    290 			Other:   0x0,
    291 			Section: 0x1E,
    292 			Value:   0x0,
    293 			Size:    0x0,
    294 		},
    295 		Symbol{
    296 			Name:    "",
    297 			Info:    0x3,
    298 			Other:   0x0,
    299 			Section: 0x1F,
    300 			Value:   0x0,
    301 			Size:    0x0,
    302 		},
    303 		Symbol{
    304 			Name:    "",
    305 			Info:    0x3,
    306 			Other:   0x0,
    307 			Section: 0x20,
    308 			Value:   0x0,
    309 			Size:    0x0,
    310 		},
    311 		Symbol{
    312 			Name:    "",
    313 			Info:    0x3,
    314 			Other:   0x0,
    315 			Section: 0x21,
    316 			Value:   0x0,
    317 			Size:    0x0,
    318 		},
    319 		Symbol{
    320 			Name:    "init.c",
    321 			Info:    0x4,
    322 			Other:   0x0,
    323 			Section: 0xFFF1,
    324 			Value:   0x0,
    325 			Size:    0x0,
    326 		},
    327 		Symbol{
    328 			Name:    "initfini.c",
    329 			Info:    0x4,
    330 			Other:   0x0,
    331 			Section: 0xFFF1,
    332 			Value:   0x0,
    333 			Size:    0x0,
    334 		},
    335 		Symbol{
    336 			Name:    "call_gmon_start",
    337 			Info:    0x2,
    338 			Other:   0x0,
    339 			Section: 0xD,
    340 			Value:   0x40040C,
    341 			Size:    0x0,
    342 		},
    343 		Symbol{
    344 			Name:    "crtstuff.c",
    345 			Info:    0x4,
    346 			Other:   0x0,
    347 			Section: 0xFFF1,
    348 			Value:   0x0,
    349 			Size:    0x0,
    350 		},
    351 		Symbol{
    352 			Name:    "__CTOR_LIST__",
    353 			Info:    0x1,
    354 			Other:   0x0,
    355 			Section: 0x12,
    356 			Value:   0x600688,
    357 			Size:    0x0,
    358 		},
    359 		Symbol{
    360 			Name:    "__DTOR_LIST__",
    361 			Info:    0x1,
    362 			Other:   0x0,
    363 			Section: 0x13,
    364 			Value:   0x600698,
    365 			Size:    0x0,
    366 		},
    367 		Symbol{
    368 			Name:    "__JCR_LIST__",
    369 			Info:    0x1,
    370 			Other:   0x0,
    371 			Section: 0x14,
    372 			Value:   0x6006A8,
    373 			Size:    0x0,
    374 		},
    375 		Symbol{
    376 			Name:    "__do_global_dtors_aux",
    377 			Info:    0x2,
    378 			Other:   0x0,
    379 			Section: 0xD,
    380 			Value:   0x400430,
    381 			Size:    0x0,
    382 		},
    383 		Symbol{
    384 			Name:    "completed.6183",
    385 			Info:    0x1,
    386 			Other:   0x0,
    387 			Section: 0x19,
    388 			Value:   0x600898,
    389 			Size:    0x1,
    390 		},
    391 		Symbol{
    392 			Name:    "p.6181",
    393 			Info:    0x1,
    394 			Other:   0x0,
    395 			Section: 0x18,
    396 			Value:   0x600890,
    397 			Size:    0x0,
    398 		},
    399 		Symbol{
    400 			Name:    "frame_dummy",
    401 			Info:    0x2,
    402 			Other:   0x0,
    403 			Section: 0xD,
    404 			Value:   0x400470,
    405 			Size:    0x0,
    406 		},
    407 		Symbol{
    408 			Name:    "crtstuff.c",
    409 			Info:    0x4,
    410 			Other:   0x0,
    411 			Section: 0xFFF1,
    412 			Value:   0x0,
    413 			Size:    0x0,
    414 		},
    415 		Symbol{
    416 			Name:    "__CTOR_END__",
    417 			Info:    0x1,
    418 			Other:   0x0,
    419 			Section: 0x12,
    420 			Value:   0x600690,
    421 			Size:    0x0,
    422 		},
    423 		Symbol{
    424 			Name:    "__DTOR_END__",
    425 			Info:    0x1,
    426 			Other:   0x0,
    427 			Section: 0x13,
    428 			Value:   0x6006A0,
    429 			Size:    0x0,
    430 		},
    431 		Symbol{
    432 			Name:    "__FRAME_END__",
    433 			Info:    0x1,
    434 			Other:   0x0,
    435 			Section: 0x11,
    436 			Value:   0x400680,
    437 			Size:    0x0,
    438 		},
    439 		Symbol{
    440 			Name:    "__JCR_END__",
    441 			Info:    0x1,
    442 			Other:   0x0,
    443 			Section: 0x14,
    444 			Value:   0x6006A8,
    445 			Size:    0x0,
    446 		},
    447 		Symbol{
    448 			Name:    "__do_global_ctors_aux",
    449 			Info:    0x2,
    450 			Other:   0x0,
    451 			Section: 0xD,
    452 			Value:   0x400560,
    453 			Size:    0x0,
    454 		},
    455 		Symbol{
    456 			Name:    "initfini.c",
    457 			Info:    0x4,
    458 			Other:   0x0,
    459 			Section: 0xFFF1,
    460 			Value:   0x0,
    461 			Size:    0x0,
    462 		},
    463 		Symbol{
    464 			Name:    "hello.c",
    465 			Info:    0x4,
    466 			Other:   0x0,
    467 			Section: 0xFFF1,
    468 			Value:   0x0,
    469 			Size:    0x0,
    470 		},
    471 		Symbol{
    472 			Name:    "_GLOBAL_OFFSET_TABLE_",
    473 			Info:    0x1,
    474 			Other:   0x2,
    475 			Section: 0x17,
    476 			Value:   0x600858,
    477 			Size:    0x0,
    478 		},
    479 		Symbol{
    480 			Name:    "__init_array_end",
    481 			Info:    0x0,
    482 			Other:   0x2,
    483 			Section: 0x12,
    484 			Value:   0x600684,
    485 			Size:    0x0,
    486 		},
    487 		Symbol{
    488 			Name:    "__init_array_start",
    489 			Info:    0x0,
    490 			Other:   0x2,
    491 			Section: 0x12,
    492 			Value:   0x600684,
    493 			Size:    0x0,
    494 		},
    495 		Symbol{
    496 			Name:    "_DYNAMIC",
    497 			Info:    0x1,
    498 			Other:   0x2,
    499 			Section: 0x15,
    500 			Value:   0x6006B0,
    501 			Size:    0x0,
    502 		},
    503 		Symbol{
    504 			Name:    "data_start",
    505 			Info:    0x20,
    506 			Other:   0x0,
    507 			Section: 0x18,
    508 			Value:   0x600880,
    509 			Size:    0x0,
    510 		},
    511 		Symbol{
    512 			Name:    "__libc_csu_fini",
    513 			Info:    0x12,
    514 			Other:   0x0,
    515 			Section: 0xD,
    516 			Value:   0x4004C0,
    517 			Size:    0x2,
    518 		},
    519 		Symbol{
    520 			Name:    "_start",
    521 			Info:    0x12,
    522 			Other:   0x0,
    523 			Section: 0xD,
    524 			Value:   0x4003E0,
    525 			Size:    0x0,
    526 		},
    527 		Symbol{
    528 			Name:    "__gmon_start__",
    529 			Info:    0x20,
    530 			Other:   0x0,
    531 			Section: 0x0,
    532 			Value:   0x0,
    533 			Size:    0x0,
    534 		},
    535 		Symbol{
    536 			Name:    "_Jv_RegisterClasses",
    537 			Info:    0x20,
    538 			Other:   0x0,
    539 			Section: 0x0,
    540 			Value:   0x0,
    541 			Size:    0x0,
    542 		},
    543 		Symbol{
    544 			Name:    "puts@@GLIBC_2.2.5",
    545 			Info:    0x12,
    546 			Other:   0x0,
    547 			Section: 0x0,
    548 			Value:   0x0,
    549 			Size:    0x18C,
    550 		},
    551 		Symbol{
    552 			Name:    "_fini",
    553 			Info:    0x12,
    554 			Other:   0x0,
    555 			Section: 0xE,
    556 			Value:   0x400594,
    557 			Size:    0x0,
    558 		},
    559 		Symbol{
    560 			Name:    "__libc_start_main@@GLIBC_2.2.5",
    561 			Info:    0x12,
    562 			Other:   0x0,
    563 			Section: 0x0,
    564 			Value:   0x0,
    565 			Size:    0x1C2,
    566 		},
    567 		Symbol{
    568 			Name:    "_IO_stdin_used",
    569 			Info:    0x11,
    570 			Other:   0x0,
    571 			Section: 0xF,
    572 			Value:   0x4005A4,
    573 			Size:    0x4,
    574 		},
    575 		Symbol{
    576 			Name:    "__data_start",
    577 			Info:    0x10,
    578 			Other:   0x0,
    579 			Section: 0x18,
    580 			Value:   0x600880,
    581 			Size:    0x0,
    582 		},
    583 		Symbol{
    584 			Name:    "__dso_handle",
    585 			Info:    0x11,
    586 			Other:   0x2,
    587 			Section: 0x18,
    588 			Value:   0x600888,
    589 			Size:    0x0,
    590 		},
    591 		Symbol{
    592 			Name:    "__libc_csu_init",
    593 			Info:    0x12,
    594 			Other:   0x0,
    595 			Section: 0xD,
    596 			Value:   0x4004D0,
    597 			Size:    0x89,
    598 		},
    599 		Symbol{
    600 			Name:    "__bss_start",
    601 			Info:    0x10,
    602 			Other:   0x0,
    603 			Section: 0xFFF1,
    604 			Value:   0x600898,
    605 			Size:    0x0,
    606 		},
    607 		Symbol{
    608 			Name:    "_end",
    609 			Info:    0x10,
    610 			Other:   0x0,
    611 			Section: 0xFFF1,
    612 			Value:   0x6008A0,
    613 			Size:    0x0,
    614 		},
    615 		Symbol{
    616 			Name:    "_edata",
    617 			Info:    0x10,
    618 			Other:   0x0,
    619 			Section: 0xFFF1,
    620 			Value:   0x600898,
    621 			Size:    0x0,
    622 		},
    623 		Symbol{
    624 			Name:    "main",
    625 			Info:    0x12,
    626 			Other:   0x0,
    627 			Section: 0xD,
    628 			Value:   0x400498,
    629 			Size:    0x1B,
    630 		},
    631 		Symbol{
    632 			Name:    "_init",
    633 			Info:    0x12,
    634 			Other:   0x0,
    635 			Section: 0xB,
    636 			Value:   0x400398,
    637 			Size:    0x0,
    638 		},
    639 	},
    640 	"testdata/go-relocation-test-clang-x86.obj": {
    641 		Symbol{
    642 			Name:    "go-relocation-test-clang.c",
    643 			Info:    0x4,
    644 			Other:   0x0,
    645 			Section: 0xFFF1,
    646 			Value:   0x0,
    647 			Size:    0x0,
    648 		},
    649 		Symbol{
    650 			Name:    ".Linfo_string0",
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    665 		Symbol{
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    729 		Symbol{
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    800 		},
    801 	},
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    803 }
    804 
    805 var dynamicSymbolsGolden = map[string][]Symbol{
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    834 }
    835