[Bug bootstrap/97304] New: Boostrap failure on freebsd: ld: error: unable to find library -lc

[Bug bootstrap/97304] New: Boostrap failure on freebsd: ld: error: unable to find library -lc

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

            Bug ID: 97304
           Summary: Boostrap failure on freebsd: ld: error: unable to find
                    library -lc
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tkoenig at gcc dot gnu.org
  Target Milestone: ---

With PR 97302 out of the way (fixed by Tobias' patch in that PR),
compilation now fails with

ld: error: unable to find library -lc

[Bug bootstrap/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

--- Comment #1 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Created attachment 49315
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49315&action=edit
config.log from failed attempt

[Bug bootstrap/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

--- Comment #2 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Created attachment 49316
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49316&action=edit
output from compilation that failed with -lc

[Bug target/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

Thomas Koenig <tkoenig at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|bootstrap                   |target

--- Comment #3 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Again, the files are on gcc303.fsffrance.org in /home/tkoenig .

[Bug bootstrap/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

Thomas Koenig <tkoenig at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|target                      |bootstrap
                 CC|                            |andreast at gcc dot gnu.org

--- Comment #4 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Guess this should be component "bootstrap".

[Bug bootstrap/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[andreast at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

--- Comment #5 from Andreas Tobler <andreast at gcc dot gnu.org> ---
Hi Tobias,

on FreeBSD-12.1, the ld is from binutils 2.17, a really old one.

Try to configure with '--with-as=/usr/local/bin/as --with-ld=/usr/local/bin/ld
'. Prerequisite is the installation of the binutils package.

I just tried on FreeBSD-13-trunk, stage one passed with the above config
parameters. (Today's gcc trunk)

Now I try to use the llvm ld, the one which will be /usr/bin/ld from FreeBSD-13
up.

Let me how it works,
Andreas

[Bug bootstrap/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[andreast at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

--- Comment #6 from Andreas Tobler <andreast at gcc dot gnu.org> ---
First, excuse me Thomas, I was focused on 'Tobias' from the description text.

It seems to pass bootstrap with /usr/bin/ld on FreeBSD-13. The test suite will
tell more.

[Bug bootstrap/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[andreast at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

--- Comment #7 from Andreas Tobler <andreast at gcc dot gnu.org> ---
Any news on this? Or can we close this PR?
TIA,
Andreas

[Bug bootstrap/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

--- Comment #8 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
(In reply to Andreas Tobler from comment #7)
> Any news on this? Or can we close this PR?

Neither. As far as I can determine, this still fails.

[Bug bootstrap/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2024-04-10

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
ld: error: unable to find library -lc
collect2: error: ld returned 1 exit status
gmake[1]: *** [Makefile:1005: libgcc_s.so] Error 1
gmake[1]: Leaving directory '/home/gcc/build/x86_64-unknown-freebsd14.0/libgcc'

[Bug bootstrap/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> ---
If --with-as=/usr/local/bin/as --with-ld=/usr/local/bin/ld is required then it
needs to be documented at https://gcc.gnu.org/install/specific.html#x-x-freebsd

[Bug bootstrap/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ro at gcc dot gnu.org

--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 112745 has been marked as a duplicate of this bug. ***

[Bug target/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=104707

--- Comment #12 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think this is related to PR 104707 .

[Bug target/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

--- Comment #13 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #11)
> *** Bug 112745 has been marked as a duplicate of this bug. ***

And as suggested in Bug 112745, either lld should Just Work or GCC should work
around whatever weirdness means it can't find libc.

(In reply to Andrew Pinski from comment #12)
> I think this is related to PR 104707 .

Aha, maybe - I was using --disable-multilib

It doesn't look like Rainer was though.

[Bug target/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

--- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #10)
> If --with-as=/usr/local/bin/as --with-ld=/usr/local/bin/ld is required then
> it needs to be documented at
> https://gcc.gnu.org/install/specific.html#x-x-freebsd

So what I think is happening is the ld (LLVM's lld) does not include /usr/lib
by default in the library search path and gcc's driver does not pass -L/usr/lib
-L/lib on to ld because it assumes all ld normally search there by default
(which most unix ld did before lld and mold come around).

Here is the code inside gcc.cc (is_directory) that excludes them:
  /* Exclude directories that the linker is known to search.  */
  if (linker
      && IS_DIR_SEPARATOR (path[0])
      && ((cp - path == 6
           && filename_ncmp (path + 1, "lib", 3) == 0)
          || (cp - path == 10
              && filename_ncmp (path + 1, "usr", 3) == 0
              && IS_DIR_SEPARATOR (path[4])
              && filename_ncmp (path + 5, "lib", 3) == 0)))
    return 0;


I am suspect we might be able to remove this and it will work but there needs
to be a lot of testing on many different targets and such.

[Bug target/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

--- Comment #15 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #14)
> (In reply to Jonathan Wakely from comment #10)
> > If --with-as=/usr/local/bin/as --with-ld=/usr/local/bin/ld is required then
> > it needs to be documented at
> > https://gcc.gnu.org/install/specific.html#x-x-freebsd
> 
> So what I think is happening is the ld (LLVM's lld) does not include
> /usr/lib by default in the library search path and gcc's driver does not
> pass -L/usr/lib -L/lib on to ld because it assumes all ld normally search
> there by default (which most unix ld did before lld and mold come around).
>

[...]

> I am suspect we might be able to remove this and it will work but there
> needs to be a lot of testing on many different targets and such.

A configure test, maybe?

[Bug driver/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|target                      |driver

--- Comment #16 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Thomas Koenig from comment #15)
> > I am suspect we might be able to remove this and it will work but there
> > needs to be a lot of testing on many different targets and such.
> 
> A configure test, maybe?

Considering it is all new (modern) ld that do this and I don't think it would
hurt all others, removing that code might be the best thing really. Plus it is
code that dates from the early 90s so I think it is way out of date really.

[Bug driver/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |pinskia at gcc dot gnu.org

--- Comment #17 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Testing the removal of the code from the driver.

[Bug driver/97304] Boostrap failure on freebsd: ld: error: unable to find library -lc

[gerald at pfeifer dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97304

Gerald Pfeifer <gerald at pfeifer dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gerald at pfeifer dot com

--- Comment #18 from Gerald Pfeifer <gerald at pfeifer dot com> ---
(In reply to Andrew Pinski from comment #17)
> Testing the removal of the code from the driver.

Thanks! Looking into building on FreeBSD 13.2 with LLD (base system)
instead of GNU ld (ports) I ran into this again, which is really ... 
surprising for a naive user.

It would be great to tackle this once and for all.