** Branch linked: lp:ubuntu/gdb -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gdb in Ubuntu. https://bugs.launchpad.net/bugs/1388999
Title: gdb is realy slow starting debugging. Status in GNU Debugger: Unknown Status in gdb package in Ubuntu: Fix Released Bug description: On binaries with a lot of symbols a massive performance degradation has happened between 14.04 and 14.10 I have bisected the gdb performance degradation to this gdb commit commit 5840bf271c87c3fc14739173fdc91c6a14057130 (refs/bisect/bad) Author: H.J. Lu <[email protected]> Date: Wed Jul 16 17:16:24 2014 Properly match PLT entry against .got.plt relocation Relocations against .got.plt section may not be in the same order as entries in PLT section. It is incorrect to assume that the Ith reloction index against .got.plt section always maps to the (I + 1)th entry in PLT section. This patch matches the .got.plt relocation offset/index in PLT entry against the index in .got.plt relocation table. It only checks R_*_JUMP_SLOT and R_*_IRELATIVE relocations. It ignores R_*_TLS_DESC and R_*_TLSDESC relocations since they have different PLT entries. bfd/ PR binutils/17154 * elf32-i386.c (elf_i386_plt_sym_val): Only match R_*_JUMP_SLOT and R_*_IRELATIVE relocation offset with PLT entry. * elf64-x86-64.c (elf_x86_64_plt_sym_val): Likewise. (elf_x86_64_plt_sym_val_offset_plt_bnd): New. (elf_x86_64_get_synthetic_symtab): Use it. ld/testsuite/ PR binutils/17154 * ld-ifunc/pr17154-i386.d: New file. * ld-ifunc/pr17154-x86-64.d: Likewise. * ld-ifunc/pr17154-x86.s: Likewise. * ld-x86-64/bnd-ifunc-2.d: Likewise. * ld-x86-64/bnd-ifunc-2.s: Likewise. * ld-x86-64/mpx.exp: Run bnd-ifunc-2. * ld-x86-64/tlsdesc-nacl.pd: Updated. * ld-x86-64/tlsdesc.pd: Likewise. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: gdb 7.8-1ubuntu4 ProcVersionSignature: Ubuntu 3.16.0-24.32-lowlatency 3.16.4 Uname: Linux 3.16.0-24-lowlatency x86_64 ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 CurrentDesktop: KDE Date: Mon Nov 3 23:27:53 2014 InstallationDate: Installed on 2014-07-11 (115 days ago) InstallationMedia: Kubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140710) SourcePackage: gdb UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/gdb/+bug/1388999/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
