[Bug ld/15983] New: Add support for emitting symbol table for PLT entries related to STT_GNU_IFUNC symbol in a static binary
https://sourceware.org/bugzilla/show_bug.cgi?id=15983 Bug ID: 15983 Summary: Add support for emitting symbol table for PLT entries related to STT_GNU_IFUNC symbol in a static binary Product: binutils Version: 2.23 Status: NEW Severity: normal Priority: P2 Component: ld Assignee: unassigned at sourceware dot org Reporter: vijunag at gmail dot com CC: vijunag at gmail dot com The GNU ld seems not to be emitting symbol table information for PLT entries related to STT_GNU_IFUNC symbols. A debugger would find itself confused when the program jumps to PLT in order to execute the gnu-indirect-function. objdump -d output of dynamic and static binary. Dynamic executable: 000694d0 : 694d0: ff 25 40 bd 78 0f jmp*0xf78bd40 694d6: 68 b0 02 00 00 push $0x2b0 694db: e9 80 fa ff ff jmp68f60 <_init+0x38> 000694e0 : 694e0: ff 25 44 bd 78 0f jmp*0xf78bd44 694e6: 68 b8 02 00 00 push $0x2b8 694eb: e9 70 fa ff ff jmp68f60 <_init+0x38> 000694f0 : 694f0: ff 25 48 bd 78 0f jmp*0xf78bd48 694f6: 68 c0 02 00 00 push $0x2c0 694fb: e9 60 fa ff ff jmp68f60 <_init+0x38> Static executable: 08048250 <.plt>: 8048250: ff 25 14 87 8f 17 jmp*0x178f8714 8048256: 68 00 00 00 00 push $0x0 804825b: e9 00 00 00 00 jmp8048260 <__rel_iplt_end+0x44> 8048260: ff 25 18 87 8f 17 jmp*0x178f8718 8048266: 68 00 00 00 00 push $0x0 804826b: e9 00 00 00 00 jmp8048270 <__rel_iplt_end+0x54> 8048270: ff 25 1c 87 8f 17 jmp*0x178f871c 8048276: 68 00 00 00 00 push $0x0 804827b: e9 00 00 00 00 jmp8048280 <__rel_iplt_end+0x64> 8048280: ff 25 20 87 8f 17 jmp*0x178f8720 8048286: 68 00 00 00 00 push $0x0 804828b: e9 00 00 00 00 jmp8048290 <__rel_iplt_end+0x74> 8048290: ff 25 24 87 8f 17 jmp*0x178f8724 gdb is unable to find the bounds of the current function when the program jumps to PLT. (gdb) n 273 argv0short = strrchr(argv[0], '/'); (gdb) n 0x08048430 in ?? () (gdb) n Cannot find bounds of current function (gdb) n Cannot find bounds of current function (gdb) -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/15983] Add support for emitting symbol table for PLT entries related to STT_GNU_IFUNC symbol in a static binary
https://sourceware.org/bugzilla/show_bug.cgi?id=15983 Vijay Nag changed: What|Removed |Added Target||i686-pc-linux-gnu Host||i686-pc-linux-gnu Build||amd64-pc-linux-gnu -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gold/15984] New: Segfault when using static __thread function variables with intel compiler
http://sourceware.org/bugzilla/show_bug.cgi?id=15984
Bug ID: 15984
Summary: Segfault when using static __thread function variables
with intel compiler
Product: binutils
Version: 2.23
Status: NEW
Severity: normal
Priority: P2
Component: gold
Assignee: ian at airs dot com
Reporter: richardg.work at gmail dot com
CC: ccoutant at google dot com
static __thread function variables cause Segfault at runtime when compiled with
the intel compiler.
Build command :
icc14 goldcrash.cpp -o goldcrash -B && ./goldcrash
(replace with the installation of binutils 2.23.2
goldcrash.cpp :
int main(int argc, const char **argv)
{
static __thread int lastID = -1;
lastId = 0;
return 0;
}
Also reported to intel: http://software.intel.com/en-us/forums/topic/475114
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[Bug gold/15984] Segfault when using static __thread function variables with intel compiler
http://sourceware.org/bugzilla/show_bug.cgi?id=15984 Cary Coutant changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|ian at airs dot com|ccoutant at google dot com --- Comment #1 from Cary Coutant --- Can you attach a .o file, please? -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gold/15984] Segfault when using static __thread function variables with intel compiler
http://sourceware.org/bugzilla/show_bug.cgi?id=15984 --- Comment #2 from Richard Geary --- Created attachment 7219 --> http://sourceware.org/bugzilla/attachment.cgi?id=7219&action=edit output of icc14 goldcrash.cpp -o goldcrash.o -c -g -O0 -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
