Re: [PATCH 1/2] Update _bfd_elf_symbol_refs_local_p/add UNDEFINED_WEAK_RESOLVED_TO_ZERO

[Alan Modra <amodra at gmail dot com>]

On Mon, Oct 09, 2017 at 04:01:39AM -0700, H.J. Lu wrote:
> On 10/9/17, Alan Modra <amodra@gmail.com> wrote:
> > On Sun, Oct 08, 2017 at 09:08:30PM -0700, H.J. Lu wrote:
> >> On 10/8/17, H.J. Lu <hjl.tools@gmail.com> wrote:
> >> > You are right.  This only works with
> >> >
> >> > CHECK_RELOCS_AFTER_OPEN_INPUT=yes
> >> >
> >> > which should also speedup check_relocs and GC.   It should be set
> >> > for all ELF targets.
> >> >
> >>
> >> Here is a patch which does that.
> >
> > I agree in principle, but I'd like to see some test results first.
> > Preferably with native targets where you can get access to hardware,
> > and with cross-compiler+libc installed where not, so at least most of
> > the testsuite is compiled and linked.
> 
> I can prepare a patch and test it with cross binutils.  But I need help
> test non-x86 native binutils.  I can fix any issues if I can reproduce them
> on x86.

I'm willing to help out in the conversion too, but the patch shouldn't
go in until the huge number of arm and aarch64 fails are investigated.
Besides arm and aarch64, I see these:

cris-elf  +FAIL: ld-cris/pic-gc-72
cris-elf  +FAIL: ld-cris/pic-gc-73
cris-elf  +FAIL: ld-cris/tls-gc-68
cris-elf  +FAIL: ld-cris/tls-gc-69
cris-elf  +FAIL: ld-cris/tls-gc-70
cris-elf  +FAIL: ld-cris/tls-gc-71
cris-elf  +FAIL: ld-cris/tls-gc-75
cris-elf  +FAIL: ld-cris/tls-gc-79
frv-linux  -FAIL: ld-elf/pr13177
frv-linux  -FAIL: --gc-sections with multiple debug sections for a function section
m68k-elf  -FAIL: PR ld/21233 dynamic symbols with section GC (--undefined)
m68k-elf  -FAIL: PR ld/21233 dynamic symbols with section GC (--require-defined)
m68k-elf  -FAIL: PR ld/21233 dynamic symbols with section GC (EXTERN)
m68k-linux  -FAIL: PR ld/21233 dynamic symbols with section GC (--undefined)
m68k-linux  -FAIL: PR ld/21233 dynamic symbols with section GC (--require-defined)
m68k-linux  -FAIL: PR ld/21233 dynamic symbols with section GC (EXTERN)
mmix  +FAIL: ld-mmix/bpo-10
mmix  +FAIL: ld-mmix/bpo-22
mn10300-elf  +FAIL: ld-elf/pr12851
mn10300-elf  -FAIL: PR ld/21233 dynamic symbols with section GC (--undefined)
mn10300-elf  -FAIL: PR ld/21233 dynamic symbols with section GC (--require-defined)
mn10300-elf  -FAIL: PR ld/21233 dynamic symbols with section GC (EXTERN)
mn10300-elf  +FAIL: --gc-sections with multiple debug sections for a function section
nios2-linux  -FAIL: PR ld/21233 dynamic symbols with section GC (--undefined)
nios2-linux  -FAIL: PR ld/21233 dynamic symbols with section GC (--require-defined)
nios2-linux  -FAIL: PR ld/21233 dynamic symbols with section GC (EXTERN)
powerpc64-linux  +FAIL: PR ld/13195
powerpc64-linux  +FAIL: Build rdynamic-1
powerpc64-linux  +FAIL: Build dynamic-1
score-elf  +FAIL: PR ld/14170
score-elf  +FAIL: Build pr17068.so
score-elf  +FAIL: pr17068 link --as-needed lib in group
score-elf  +FAIL: ld link shared library
score-elf  +FAIL: PROVIDE_HIDDEN test (auxiliary shared object)
score-elf  +FAIL: pr20022
score-elf  +FAIL: undefined symbols in shared lib

-- 
Alan Modra
Australia Development Lab, IBM