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...s wrong only with the information. If that is an open-source program, can you give me a link to that so that I can try? If that's a proprietary software you cannot share with me, you might want to produce small reproducible test case. On Thu, Mar 23, 2017 at 1:10 AM, Martin Richtarsky <s at martinien.de> wrote: > Hi Rui, > > fyi I'm still working on a reproducer I can share. > > >> Here is the relevant output: > >> > >> 0000000000013832 <func()>: > >> 13832: 55 push %rbp > >> 13833: 4...

Martin Richtarsky <s at martinien.de> writes: > Output looks as follows [1] Seems sh_offset is missing? That is what readelf prints as Off > [17] .rela.text RELA 0000000000000000 071423 001728 18 > 1 4 8 The offset of rela text should have been aligned, but it is not. Can you report a bug...

On Wed, Mar 15, 2017 at 2:22 PM, Martin Richtarsky <s at martinien.de> wrote: > Here is the relevant output: > > 0000000000013832 <func()>: > 13832: 55 push %rbp > 13833: 48 89 e5 mov %rsp,%rbp > 13836: 53 push %rbx > 13837: 48 83 ec 1...

...error, and LLD should pick one of them for each unique name, but this might not be workingw ell. - If you create a temporary object file using `ld.lld -r`, it should work. I don't know why, though. I'll continue investigating. On Sat, Apr 15, 2017 at 3:10 PM, Martin Richtarsky <s at martinien.de> wrote: > Hi Rui, > > I finally managed to come up with a reduced example, please find it > attached. You need to have GOLDPATH and LLDPATH set to point to the > respective linkers. > > What happens in build.sh is that an object file is partially linked ("-u")...

Martin Richtarsky <s at martinien.de> writes: > Rafael Avila de Espindola wrote : >>> Maybe gdb needs to fall back to slower line number resolution because >>> e.g. >>> low and high bounds cannot be retrieved and debug_line_address is 0? >> >> It is hard to know without a reproducible....

Martin Richtarsky <s at martinien.de> writes: > Hi, > >> Is the program being built by gcc or clang? > gcc 6, but I can try clang. > >> Are both using --gdb-index? Can you try lld trunk if so? > No. > >> Is any of the programs you tested open source? > No. > > Here is some more info....

...t fails to fix the address for some reason. Can you dump that function with `objdump -d -r that-file.o`? With the -r option, objdump prints out relocation records. Relocation records are the information that linkers use to fix addresses. On Wed, Mar 15, 2017 at 9:25 AM, Martin Richtarsky <s at martinien.de> wrote: > Hi all, > > I'm currently trying out lld on a large project. We are currently using > gold (and used GNU ld before that). > > I have come across a few minor issues but could workaround them: > - Missing support for --defsym=symbol1=symbol2, > --warn-unkn...

Martin Richtarsky <s at martinien.de> writes: > Rafael Avila de Espindola wrote: >>> I will retry with clang trunk, when it reproduces I will build some >>> other >>> large project (that has DSOs) using our compile/link options (they are >>> not >>> that special, I think). >&gt...

Rui Ueyama <ruiu at google.com> writes: > On Tue, Dec 5, 2017 at 1:22 PM, Rafael Avila de Espindola < > rafael.espindola at gmail.com> wrote: > >> Martin Richtarsky <s at martinien.de> writes: >> >> > Output looks as follows [1] Seems sh_offset is missing? >> >> That is what readelf prints as Off >> >> > [17] .rela.text RELA 0000000000000000 071423 001728 >> 18 >> > 1 4 8 >> >>...

Hi, for programs linked with lld it's substantially slower to get callstacks in gdb, in comparison to gold-linked programs. Two measurements: lld gold 15 sec 3 sec 6 sec 2 sec This is a debug build, rather large binaries (lots of templates). I have seen even worse performance for debug+UBSan builds. I think code size (and therefore DWARF size) has an impact. Is there some information

Is the program being built by gcc or clang? Cheers, Rafael Rafael Avila de Espindola <rafael.espindola at gmail.com> writes: > Martin Richtarsky via llvm-dev <llvm-dev at lists.llvm.org> writes: > >> Hi, >> >> for programs linked with lld it's substantially slower to get callstacks >> in gdb, in comparison to gold-linked programs. Two measurements:

Hello, I could use a tip or two to get the following setup to work: I have a Win2k box with two network cards, the first connected to a private LAN (192.168.6.x) which has an uplink and a few other hosts connected, the second card is linked to a second private LAN with a backup box on it, which runs Debian sarge with Samba 3.0.14a-Debian. I want to backup from Win2k by mapping the shares to