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Gentoo's Bugzilla – Attachment 558892 Details for
Bug 672918
sys-apps/sandbox segfaults in sb_check_exec() for programs compiled with sys-devel/clang-7.0.1, >=sys-libs/glibc-2.28, -fuse-ld=lld and -Wl,--hash-style=gnu
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[patch]
diff -u conftest-mwe.clang.readelf conftest-mwe.gcc.readelf
conftest-mwe.readelf.diff (text/plain), 19.86 KB, created by
Dennis Schridde
on 2018-12-29 21:24:42 UTC
(
hide
)
Description:
diff -u conftest-mwe.clang.readelf conftest-mwe.gcc.readelf
Filename:
MIME Type:
Creator:
Dennis Schridde
Created:
2018-12-29 21:24:42 UTC
Size:
19.86 KB
patch
obsolete
>--- conftest-mwe.clang.readelf 2018-12-29 21:27:05.442370778 +0100 >+++ conftest-mwe.gcc.readelf 2018-12-29 21:21:37.925608056 +0100 >@@ -10,92 +10,68 @@ > Version: 0x1 > Entry point address: 0x201000 > Start of program headers: 64 (bytes into file) >- Start of section headers: 15128 (bytes into file) >+ Start of section headers: 15136 (bytes into file) > Flags: 0x0 > Size of this header: 64 (bytes) > Size of program headers: 56 (bytes) >- Number of program headers: 10 >+ Number of program headers: 7 > Size of section headers: 64 (bytes) >- Number of section headers: 37 >- Section header string table index: 35 >+ Number of section headers: 25 >+ Section header string table index: 23 > > Section Headers: > [Nr] Name Type Address Offset > Size EntSize Flags Link Info Align > [ 0] NULL 0000000000000000 00000000 > 0000000000000000 0000000000000000 0 0 0 >- [ 1] .interp PROGBITS 0000000000200270 00000270 >- 000000000000001c 0000000000000000 A 0 0 1 >- [ 2] .dynsym DYNSYM 0000000000200290 00000290 >- 00000000000000a8 0000000000000018 A 6 1 8 >- [ 3] .gnu.version VERSYM 0000000000200338 00000338 >- 000000000000000e 0000000000000002 A 2 0 2 >- [ 4] .gnu.version_r VERNEED 0000000000200348 00000348 >- 0000000000000030 0000000000000000 A 6 1 4 >- [ 5] .gnu.hash GNU_HASH 0000000000200378 00000378 >- 000000000000001c 0000000000000000 A 2 0 8 >- [ 6] .dynstr STRTAB 0000000000200394 00000394 >- 00000000000000c8 0000000000000000 A 0 0 1 >- [ 7] .rela.dyn RELA 0000000000200460 00000460 >- 0000000000000030 0000000000000018 A 2 0 8 >- [ 8] .rela.plt RELA 0000000000200490 00000490 >- 0000000000000030 0000000000000018 A 2 0 8 >- [ 9] .note.ABI-tag NOTE 00000000002004c0 000004c0 >- 0000000000000020 0000000000000000 A 0 0 4 >- [10] .rodata PROGBITS 00000000002004e0 000004e0 >- 000000000000000a 0000000000000000 AMS 0 0 4 >- [11] .eh_frame_hdr PROGBITS 00000000002004ec 000004ec >- 000000000000002c 0000000000000000 A 0 0 4 >- [12] .eh_frame PROGBITS 0000000000200518 00000518 >- 00000000000000dc 0000000000000000 A 0 0 8 >- [13] .text PROGBITS 0000000000201000 00001000 >- 00000000000001de 0000000000000000 AX 0 0 16 >- [14] .init PROGBITS 00000000002011e0 000011e0 >- 0000000000000017 0000000000000000 AX 0 0 4 >- [15] .fini PROGBITS 00000000002011f8 000011f8 >- 0000000000000009 0000000000000000 AX 0 0 4 >- [16] .plt PROGBITS 0000000000201210 00001210 >- 0000000000000030 0000000000000000 AX 0 0 16 >- [17] .data PROGBITS 0000000000202000 00002000 >- 0000000000000010 0000000000000000 WA 0 0 8 >- [18] .tm_clone_table PROGBITS 0000000000202010 00002010 >- 0000000000000000 0000000000000000 WA 0 0 8 >- [19] .got.plt PROGBITS 0000000000202010 00002010 >- 0000000000000028 0000000000000000 WA 0 0 8 >- [20] .fini_array FINI_ARRAY 0000000000203000 00003000 >- 0000000000000008 0000000000000008 WA 0 0 8 >- [21] .init_array INIT_ARRAY 0000000000203008 00003008 >- 0000000000000008 0000000000000008 WA 0 0 8 >- [22] .dynamic DYNAMIC 0000000000203010 00003010 >- 00000000000001b0 0000000000000010 WA 6 0 8 >- [23] .got PROGBITS 00000000002031c0 000031c0 >- 0000000000000010 0000000000000000 WA 0 0 8 >- [24] .bss NOBITS 0000000000204000 000031d0 >- 0000000000000001 0000000000000000 WA 0 0 1 >- [25] .comment PROGBITS 0000000000000000 000031d0 >- 0000000000000084 0000000000000001 MS 0 0 1 >- [26] .gnu_debuglink PROGBITS 0000000000000000 00003254 >- 000000000000003c 0000000000000000 0 0 4 >- [27] .debug_str PROGBITS 0000000000000000 00003290 >- 0000000000000069 0000000000000001 MS 0 0 1 >- [28] .debug_abbrev PROGBITS 0000000000000000 000032f9 >- 000000000000004f 0000000000000000 0 0 1 >- [29] .debug_info PROGBITS 0000000000000000 00003348 >- 0000000000000079 0000000000000000 0 0 1 >- [30] .debug_macinfo PROGBITS 0000000000000000 000033c1 >- 0000000000000001 0000000000000000 0 0 1 >- [31] .debug_pubnames PROGBITS 0000000000000000 000033c2 >- 000000000000001b 0000000000000000 0 0 1 >- [32] .debug_pubtypes PROGBITS 0000000000000000 000033dd >- 0000000000000023 0000000000000000 0 0 1 >- [33] .debug_line PROGBITS 0000000000000000 00003400 >- 000000000000004a 0000000000000000 0 0 1 >- [34] .symtab SYMTAB 0000000000000000 00003450 >- 0000000000000348 0000000000000018 36 22 8 >- [35] .shstrtab STRTAB 0000000000000000 00003798 >- 0000000000000174 0000000000000000 0 0 1 >- [36] .strtab STRTAB 0000000000000000 0000390c >- 000000000000020a 0000000000000000 0 0 1 >+ [ 1] .dynsym DYNSYM 00000000002001c8 000001c8 >+ 0000000000000030 0000000000000018 A 5 1 8 >+ [ 2] .gnu.version VERSYM 00000000002001f8 000001f8 >+ 0000000000000004 0000000000000002 A 1 0 2 >+ [ 3] .gnu.version_r VERNEED 00000000002001fc 000001fc >+ 0000000000000020 0000000000000000 A 5 1 4 >+ [ 4] .gnu.hash GNU_HASH 0000000000200220 00000220 >+ 000000000000001c 0000000000000000 A 1 0 8 >+ [ 5] .dynstr STRTAB 000000000020023c 0000023c >+ 0000000000000044 0000000000000000 A 0 0 1 >+ [ 6] .rela.plt RELA 0000000000200280 00000280 >+ 0000000000000018 0000000000000018 A 1 0 8 >+ [ 7] .rodata PROGBITS 0000000000200298 00000298 >+ 0000000000000005 0000000000000000 A 0 0 1 >+ [ 8] .eh_frame PROGBITS 00000000002002a0 000002a0 >+ 000000000000003c 0000000000000000 A 0 0 8 >+ [ 9] .text PROGBITS 0000000000201000 00001000 >+ 0000000000000022 0000000000000000 AX 0 0 1 >+ [10] .plt PROGBITS 0000000000201030 00001030 >+ 0000000000000020 0000000000000000 AX 0 0 16 >+ [11] .data PROGBITS 0000000000202000 00002000 >+ 0000000000000000 0000000000000000 WA 0 0 1 >+ [12] .got.plt PROGBITS 0000000000202000 00002000 >+ 0000000000000020 0000000000000000 WA 0 0 8 >+ [13] .dynamic DYNAMIC 0000000000203000 00003000 >+ 0000000000000110 0000000000000010 WA 5 0 8 >+ [14] .bss NOBITS 0000000000204000 00003110 >+ 0000000000000000 0000000000000000 WA 0 0 1 >+ [15] .debug_info PROGBITS 0000000000000000 00003110 >+ 0000000000000326 0000000000000000 0 0 1 >+ [16] .debug_abbrev PROGBITS 0000000000000000 00003436 >+ 00000000000000e1 0000000000000000 0 0 1 >+ [17] .debug_aranges PROGBITS 0000000000000000 00003517 >+ 0000000000000030 0000000000000000 0 0 1 >+ [18] .debug_ranges PROGBITS 0000000000000000 00003547 >+ 0000000000000020 0000000000000000 0 0 1 >+ [19] .debug_line PROGBITS 0000000000000000 00003567 >+ 00000000000000ff 0000000000000000 0 0 1 >+ [20] .debug_str PROGBITS 0000000000000000 00003666 >+ 00000000000002cc 0000000000000001 MS 0 0 1 >+ [21] .comment PROGBITS 0000000000000000 00003932 >+ 0000000000000035 0000000000000001 MS 0 0 1 >+ [22] .symtab SYMTAB 0000000000000000 00003968 >+ 0000000000000090 0000000000000018 24 4 8 >+ [23] .shstrtab STRTAB 0000000000000000 000039f8 >+ 00000000000000ec 0000000000000000 0 0 1 >+ [24] .strtab STRTAB 0000000000000000 00003ae4 >+ 0000000000000039 0000000000000000 0 0 1 > Key to Flags: > W (write), A (alloc), X (execute), M (merge), S (strings), I (info), > L (link order), O (extra OS processing required), G (group), T (TLS), >@@ -108,142 +84,75 @@ > Type Offset VirtAddr PhysAddr > FileSiz MemSiz Flags Align > PHDR 0x0000000000000040 0x0000000000200040 0x0000000000200040 >- 0x0000000000000230 0x0000000000000230 R 0x8 >- INTERP 0x0000000000000270 0x0000000000200270 0x0000000000200270 >- 0x000000000000001c 0x000000000000001c R 0x1 >- [Requesting program interpreter: /lib64/ld-linux-x86-64.so.2] >+ 0x0000000000000188 0x0000000000000188 R 0x8 > LOAD 0x0000000000000000 0x0000000000200000 0x0000000000200000 >- 0x00000000000005f4 0x00000000000005f4 R 0x1000 >+ 0x00000000000002dc 0x00000000000002dc R 0x1000 > LOAD 0x0000000000001000 0x0000000000201000 0x0000000000201000 >- 0x0000000000000240 0x0000000000000240 R E 0x1000 >+ 0x0000000000000050 0x0000000000000050 R E 0x1000 > LOAD 0x0000000000002000 0x0000000000202000 0x0000000000202000 >- 0x00000000000011d0 0x0000000000002001 RW 0x1000 >- DYNAMIC 0x0000000000003010 0x0000000000203010 0x0000000000203010 >- 0x00000000000001b0 0x00000000000001b0 RW 0x8 >+ 0x0000000000001110 0x0000000000002000 RW 0x1000 >+ DYNAMIC 0x0000000000003000 0x0000000000203000 0x0000000000203000 >+ 0x0000000000000110 0x0000000000000110 RW 0x8 > GNU_RELRO 0x0000000000003000 0x0000000000203000 0x0000000000203000 >- 0x00000000000001d0 0x0000000000001000 R 0x1 >- GNU_EH_FRAME 0x00000000000004ec 0x00000000002004ec 0x00000000002004ec >- 0x000000000000002c 0x000000000000002c R 0x4 >+ 0x0000000000000110 0x0000000000001000 R 0x1 > GNU_STACK 0x0000000000000000 0x0000000000000000 0x0000000000000000 > 0x0000000000000000 0x0000000000000000 RW 0x0 >- NOTE 0x00000000000004c0 0x00000000002004c0 0x00000000002004c0 >- 0x0000000000000020 0x0000000000000020 R 0x4 > > Section to Segment mapping: > Segment Sections... > 00 >- 01 .interp >- 02 .interp .dynsym .gnu.version .gnu.version_r .gnu.hash .dynstr .rela.dyn .rela.plt .note.ABI-tag .rodata .eh_frame_hdr .eh_frame >- 03 .text .init .fini .plt >- 04 .data .tm_clone_table .got.plt .fini_array .init_array .dynamic .got .bss >+ 01 .dynsym .gnu.version .gnu.version_r .gnu.hash .dynstr .rela.plt .rodata .eh_frame >+ 02 .text .plt >+ 03 .data .got.plt .dynamic >+ 04 .dynamic > 05 .dynamic >- 06 .fini_array .init_array .dynamic .got >- 07 .eh_frame_hdr >- 08 >- 09 .note.ABI-tag >+ 06 > >-Dynamic section at offset 0x3010 contains 27 entries: >+Dynamic section at offset 0x3000 contains 17 entries: > Tag Type Name/Value > 0x000000000000001d (RUNPATH) Library runpath: [/usr/lib64/firefox] >- 0x0000000000000001 (NEEDED) Shared library: [libpthread.so.0] > 0x0000000000000001 (NEEDED) Shared library: [libc.so.6] > 0x0000000000000001 (NEEDED) Shared library: [ld-linux-x86-64.so.2] > 0x0000000000000015 (DEBUG) 0x0 >- 0x0000000000000007 (RELA) 0x200460 >- 0x0000000000000008 (RELASZ) 48 (bytes) >- 0x0000000000000009 (RELAENT) 24 (bytes) >- 0x0000000000000017 (JMPREL) 0x200490 >- 0x0000000000000002 (PLTRELSZ) 48 (bytes) >- 0x0000000000000003 (PLTGOT) 0x202010 >+ 0x0000000000000017 (JMPREL) 0x200280 >+ 0x0000000000000002 (PLTRELSZ) 24 (bytes) >+ 0x0000000000000003 (PLTGOT) 0x202000 > 0x0000000000000014 (PLTREL) RELA >- 0x0000000000000006 (SYMTAB) 0x200290 >+ 0x0000000000000006 (SYMTAB) 0x2001c8 > 0x000000000000000b (SYMENT) 24 (bytes) >- 0x0000000000000005 (STRTAB) 0x200394 >- 0x000000000000000a (STRSZ) 200 (bytes) >- 0x000000006ffffef5 (GNU_HASH) 0x200378 >- 0x0000000000000019 (INIT_ARRAY) 0x203008 >- 0x000000000000001b (INIT_ARRAYSZ) 8 (bytes) >- 0x000000000000001a (FINI_ARRAY) 0x203000 >- 0x000000000000001c (FINI_ARRAYSZ) 8 (bytes) >- 0x000000000000000c (INIT) 0x2011e0 >- 0x000000000000000d (FINI) 0x2011f8 >- 0x000000006ffffff0 (VERSYM) 0x200338 >- 0x000000006ffffffe (VERNEED) 0x200348 >+ 0x0000000000000005 (STRTAB) 0x20023c >+ 0x000000000000000a (STRSZ) 68 (bytes) >+ 0x000000006ffffef5 (GNU_HASH) 0x200220 >+ 0x000000006ffffff0 (VERSYM) 0x2001f8 >+ 0x000000006ffffffe (VERNEED) 0x2001fc > 0x000000006fffffff (VERNEEDNUM) 1 > 0x0000000000000000 (NULL) 0x0 > >-Relocation section '.rela.dyn' at offset 0x460 contains 2 entries: >+Relocation section '.rela.plt' at offset 0x280 contains 1 entry: > Offset Info Type Sym. Value Sym. Name + Addend >-0000002031c0 000100000006 R_X86_64_GLOB_DAT 0000000000000000 __libc_start_main@GLIBC_2.2.5 + 0 >-0000002031c8 000200000006 R_X86_64_GLOB_DAT 0000000000000000 __gmon_start__ + 0 >- >-Relocation section '.rela.plt' at offset 0x490 contains 2 entries: >- Offset Info Type Sym. Value Sym. Name + Addend >-000000202028 000600000007 R_X86_64_JUMP_SLO 0000000000000000 printf@GLIBC_2.2.5 + 0 >-000000202030 000500000007 R_X86_64_JUMP_SLO 0000000000000000 __stack_chk_fail@GLIBC_2.4 + 0 >+000000202018 000100000007 R_X86_64_JUMP_SLO 0000000000000000 puts@GLIBC_2.2.5 + 0 > > The decoding of unwind sections for machine type Advanced Micro Devices X86-64 is not currently supported. > >-Symbol table '.dynsym' contains 7 entries: >+Symbol table '.dynsym' contains 2 entries: > Num: Value Size Type Bind Vis Ndx Name > 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND >- 1: 0000000000000000 0 FUNC GLOBAL DEFAULT UND __libc_start_main@GLIBC_2.2.5 (2) >- 2: 0000000000000000 0 NOTYPE WEAK DEFAULT UND __gmon_start__ >- 3: 0000000000000000 0 NOTYPE WEAK DEFAULT UND _ITM_deregisterTMCloneTab >- 4: 0000000000000000 0 NOTYPE WEAK DEFAULT UND _ITM_registerTMCloneTable >- 5: 0000000000000000 0 FUNC GLOBAL DEFAULT UND __stack_chk_fail@GLIBC_2.4 (3) >- 6: 0000000000000000 0 FUNC GLOBAL DEFAULT UND printf@GLIBC_2.2.5 (2) >+ 1: 0000000000000000 0 FUNC GLOBAL DEFAULT UND puts@GLIBC_2.2.5 (2) > >-Symbol table '.symtab' contains 35 entries: >+Symbol table '.symtab' contains 6 entries: > Num: Value Size Type Bind Vis Ndx Name > 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND >- 1: 0000000000000000 0 FILE LOCAL DEFAULT ABS crtstuff.c >- 2: 0000000000202010 0 OBJECT LOCAL DEFAULT 18 __TMC_LIST__ >- 3: 0000000000201030 0 FUNC LOCAL DEFAULT 13 deregister_tm_clones >- 4: 0000000000201060 0 FUNC LOCAL DEFAULT 13 register_tm_clones >- 5: 00000000002010a0 0 FUNC LOCAL DEFAULT 13 __do_global_dtors_aux >- 6: 0000000000204000 1 OBJECT LOCAL DEFAULT 24 completed.8389 >- 7: 0000000000203000 0 OBJECT LOCAL DEFAULT 20 __do_global_dtors_aux_fin >- 8: 00000000002010d0 0 FUNC LOCAL DEFAULT 13 frame_dummy >- 9: 0000000000203008 0 OBJECT LOCAL DEFAULT 21 __frame_dummy_init_array_ >- 10: 0000000000202008 0 OBJECT LOCAL HIDDEN 17 __dso_handle >- 11: 0000000000000000 0 FILE LOCAL DEFAULT ABS conftest-mwe.c >- 12: 0000000000000000 0 FILE LOCAL DEFAULT ABS elf-init.c >- 13: 0000000000000000 0 FILE LOCAL DEFAULT ABS crtstuff.c >- 14: 0000000000200518 0 OBJECT LOCAL DEFAULT 12 __FRAME_END__ >- 15: 0000000000202010 0 OBJECT LOCAL HIDDEN 18 __TMC_END__ >- 16: 00000000002011e0 0 FUNC LOCAL HIDDEN 14 _init >- 17: 00000000002011f8 0 FUNC LOCAL HIDDEN 15 _fini >- 18: 0000000000203008 0 NOTYPE LOCAL HIDDEN 21 __init_array_start >- 19: 0000000000203010 0 NOTYPE LOCAL HIDDEN 21 __init_array_end >- 20: 0000000000202010 0 NOTYPE LOCAL HIDDEN 19 _GLOBAL_OFFSET_TABLE_ >- 21: 0000000000203010 0 NOTYPE LOCAL HIDDEN 22 _DYNAMIC >- 22: 00000000002011b0 46 FUNC GLOBAL DEFAULT 13 __libc_csu_fini >- 23: 0000000000201000 43 FUNC GLOBAL DEFAULT 13 _start >- 24: 0000000000201120 137 FUNC GLOBAL DEFAULT 13 __libc_csu_init >- 25: 00000000002010e0 52 FUNC GLOBAL DEFAULT 13 main >- 26: 0000000000202000 0 NOTYPE WEAK DEFAULT 17 data_start >- 27: 00000000002004e0 4 OBJECT GLOBAL DEFAULT 10 _IO_stdin_used >- 28: 0000000000000000 0 FUNC GLOBAL DEFAULT UND __libc_start_main >- 29: 0000000000202000 0 NOTYPE GLOBAL DEFAULT 17 __data_start >- 30: 0000000000000000 0 NOTYPE WEAK DEFAULT UND __gmon_start__ >- 31: 0000000000000000 0 NOTYPE WEAK DEFAULT UND _ITM_deregisterTMCloneTab >- 32: 0000000000000000 0 NOTYPE WEAK DEFAULT UND _ITM_registerTMCloneTable >- 33: 0000000000000000 0 FUNC GLOBAL DEFAULT UND __stack_chk_fail >- 34: 0000000000000000 0 FUNC GLOBAL DEFAULT UND printf >- >-Version symbols section '.gnu.version' contains 7 entries: >- Addr: 0000000000200338 Offset: 0x000338 Link: 2 (.dynsym) >- 000: 0 (*local*) 2 (GLIBC_2.2.5) 1 (*global*) 1 (*global*) >- 004: 1 (*global*) 3 (GLIBC_2.4) 2 (GLIBC_2.2.5) >+ 1: 0000000000000000 0 FILE LOCAL DEFAULT ABS conftest-mwe.c >+ 2: 0000000000202000 0 NOTYPE LOCAL HIDDEN 12 _GLOBAL_OFFSET_TABLE_ >+ 3: 0000000000203000 0 NOTYPE LOCAL HIDDEN 13 _DYNAMIC >+ 4: 0000000000201000 34 FUNC GLOBAL DEFAULT 9 main >+ 5: 0000000000000000 0 FUNC GLOBAL DEFAULT UND puts >+ >+Version symbols section '.gnu.version' contains 2 entries: >+ Addr: 00000000002001f8 Offset: 0x0001f8 Link: 1 (.dynsym) >+ 000: 0 (*local*) 2 (GLIBC_2.2.5) > > Version needs section '.gnu.version_r' contains 1 entry: >- Addr: 0x0000000000200348 Offset: 0x000348 Link: 6 (.dynstr) >- 000000: Version: 1 File: libc.so.6 Cnt: 2 >+ Addr: 0x00000000002001fc Offset: 0x0001fc Link: 5 (.dynstr) >+ 000000: Version: 1 File: libc.so.6 Cnt: 1 > 0x0010: Name: GLIBC_2.2.5 Flags: none Version: 2 >- 0x0020: Name: GLIBC_2.4 Flags: none Version: 3 >- >-Displaying notes found in: .note.ABI-tag >- Owner Data size Description >- GNU 0x00000010 NT_GNU_ABI_TAG (ABI version tag) >- OS: Linux, ABI: 3.2.0
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bug 672918
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557560
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557770
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558894
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558896
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558898
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558900
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558906
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558908
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567468
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568076
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568154
