Date: Fri, 11 May 2018 17:30:05 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 227552] w, uptime i386 coredump in libxo Message-ID: <bug-227552-227-bYxdfwkjvt@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-227552-227@https.bugs.freebsd.org/bugzilla/> References: <bug-227552-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D227552 --- Comment #25 from Phil Shafer <phil@freebsd.org> --- FWIW, here's the diff between unstripped and stripped readelf output: @@ -10,14 +10,14 @@ Version: 0x1 Entry point address: 0x2e60 Start of program headers: 52 (bytes into file) - Start of section headers: 287684 (bytes into file) + Start of section headers: 96676 (bytes into file) Flags: 0 Size of this header: 52 (bytes) Size of program headers: 32 (bytes) Number of program headers: 5 Size of section headers: 40 (bytes) - Number of section headers: 39 - Section header string table index: 36 + Number of section headers: 27 + Section header string table index: 26 Elf file type is DYN (Shared object file) Entry point 0x2e60 @@ -28,17 +28,17 @@ LOAD 0x000000 0x00000000 0x00000000 0x171f8 0x171f8 R E 0x1000 LOAD 0x0171f8 0x000181f8 0x000181f8 0x005fc 0x0064c RW 0x1000 DYNAMIC 0x0172f4 0x000182f4 0x000182f4 0x000d8 0x000d8 RW 0x4 - TLS 0x0171f8 0x000181f8 0x000181f8 0x00000 0x00658 R 0x8 + TLS 0x0171f8 0x000187f4 0x000187f4 0x00000 0x00050 R 0x8 GNU_STACK 0x000000 0x00000000 0x00000000 0x00000 0x00000 RW 0x4 Section to Segment mapping: Segment Sections... - 00 .hash .gnu.hash .dynsym .dynstr .gnu.version .gnu.version_r .rel= .dyn .rel.plt .init .plt .text .fini .rodata .eh_frame .comment .debug_pubnames .debug_info .debug_abbrev .debug_line .debug_frame .debug_str .debug_loc .debug_macinfo .debug_pubtypes .debug_ranges .shstrtab .symtab .strtab + 00 .hash .gnu.hash .dynsym .dynstr .gnu.version .gnu.version_r .rel= .dyn .rel.plt .init .plt .text .fini .rodata .eh_frame .comment .shstrtab 01 .ctors .dtors .jcr .data.rel.ro .dynamic .got .got.plt .data .bss 02 .dynamic - 03 .tbss .ctors .dtors .jcr .data.rel.ro .dynamic .got .got.plt .da= ta .bss + 03 .bss 04 -There are 39 section headers, starting at offset 0x463c4: +There are 27 section headers, starting at offset 0x179a4: Section Headers: [Nr] Name Type Addr Off Size ES Flg Lk = Inf Al @@ -49,8 +49,8 @@ [ 4] .dynstr STRTAB 00001648 001648 0009c2 00 A 0 = 0=20 1 [ 5] .gnu.version SUNW_versym 0000200a 00200a 000188 02 A 3 = 0=20 2 [ 6] .gnu.version_r SUNW_verneed 00002194 002194 000030 00 A 4 = 1=20 4 - [ 7] .rel.dyn REL 000021c4 0021c4 000438 08 A 3 = 0=20 4 - [ 8] .rel.plt REL 000025fc 0025fc 0002c0 08 A 3 = 10=20 4 + [ 7] .rel.dyn REL 000021c4 0021c4 000438 08 AI 3 = 0=20 4 + [ 8] .rel.plt REL 000025fc 0025fc 0002c0 08 AI 3 = 10=20 4 [ 9] .init PROGBITS 000028bc 0028bc 000011 00 AX 0 = 0=20 4 [10] .plt PROGBITS 000028d0 0028d0 000590 04 AX 0 = 0=20 4 [11] .text PROGBITS 00002e60 002e60 0129c0 00 AX 0 = 0 16 @@ -68,19 +68,7 @@ [23] .data PROGBITS 00018578 017578 00027c 00 WA 0 = 0=20 4 [24] .bss NOBITS 000187f4 0177f4 000050 00 WA 0 = 0=20 4 [25] .comment PROGBITS 00000000 0177f4 0000e6 01 MS 0 = 0=20 1 - [26] .debug_pubnames PROGBITS 00000000 0178da 0018dc 00 0 = 0=20 1 - [27] .debug_info PROGBITS 00000000 0191b6 00e557 00 0 = 0=20 1 - [28] .debug_abbrev PROGBITS 00000000 02770d 000951 00 0 = 0=20 1 - [29] .debug_line PROGBITS 00000000 02805e 00bb0b 00 0 = 0=20 1 - [30] .debug_frame PROGBITS 00000000 033b6c 001498 00 0 = 0=20 4 - [31] .debug_str PROGBITS 00000000 035004 0023d9 01 MS 0 = 0=20 1 - [32] .debug_loc PROGBITS 00000000 0373dd 00ce49 00 0 = 0=20 1 - [33] .debug_macinfo PROGBITS 00000000 044226 000003 00 0 = 0=20 1 - [34] .debug_pubtypes PROGBITS 00000000 044229 0009b5 00 0 = 0=20 1 - [35] .debug_ranges PROGBITS 00000000 044bde 001688 00 0 = 0=20 1 - [36] .shstrtab STRTAB 00000000 046266 00015e 00 0 = 0=20 1 - [37] .symtab SYMTAB 00000000 0469dc 000eb0 10 38 = 40=20 4 - [38] .strtab STRTAB 00000000 04788c 000c9d 00 0 = 0=20 1 + [26] .shstrtab STRTAB 00000000 0178da 0000c8 00 0 = 0=20 1 Key to Flags: W (write), A (alloc), X (execute), M (merge), S (strings) I (info), L (link order), G (group), x (unknown) Of particular interest is the TLS line, which changes from: Program Headers: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align ... TLS 0x0171f8 0x000181f8 0x000181f8 0x00000 0x00658 R 0x8 to: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align ... TLS 0x0171f8 0x000187f4 0x000187f4 0x00000 0x00050 R 0x8 The size changes from 0x658 to 0x50 and given that the xo_default_handle is= 328 bytes (0x148), this is likely broken. Not that this explains the starting address being below segment #3's starti= ng address...... Thanks, Phil --=20 You are receiving this mail because: You are the assignee for the bug.=
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