On Thu, Feb 15, 2024 at 3:49 AM Adhemerval Zanella Netto
<[email protected]> wrote:
>
>
>
> On 15/02/24 08:47, H.J. Lu wrote:
> > On Thu, Feb 15, 2024 at 12:01 AM Maxim Kuvyrkov
> > <[email protected]> wrote:
> >>
> >>> On Feb 15, 2024, at 03:54, H.J. Lu <[email protected]> wrote:
> >>>
> >>> FAIL: elf/tst-gnu2-tls2
> >>>
> >>> indicates that your _dl_tlsdesc_dynamic may not preserve all caller-saved
> >>> registers. Please find out how the test fails.
> >>
> >> Hi H.J.,
> >>
> >> See below.
> >>
> >> ...
> >>> FAIL: 1 regressions
> >>>
> >>> regressions.sum:
> >>> === glibc tests ===
> >>>
> >>> Running glibc:elf ...
> >>> FAIL: elf/tst-gnu2-tls2
> >>>
> >>>
> >>> You can find the failure logs in *.log.1.xz files in
> >>> -
> >>> https://ci.linaro.org/job/tcwg_glibc_check--master-arm-precommit/1460/artifact/artifacts/artifacts.precommit/00-sumfiles/
> >>
> >> tests.log.1.xz contains output of failed tests --
> >> https://ci.linaro.org/job/tcwg_glibc_check--master-arm-precommit/1460/artifact/artifacts/artifacts.precommit/00-sumfiles/tests.log.1.xz
> >> ===
> >> FAIL: elf/tst-gnu2-tls2
> >> original exit status 1
> >> open tst-gnu2-tls2mod0.so
> >> open tst-gnu2-tls2mod1.so
> >> open tst-gnu2-tls2mod2.so
> >> close tst-gnu2-tls2mod0.so
> >> close tst-gnu2-tls2mod1.so
> >> open tst-gnu2-tls2mod0.so
> >> open tst-gnu2-tls2mod1.so
> >> Didn't expect signal from child: got `Segmentation fault'
> >> ===
> >>
> >> Let me know if you need any help investigating this.
> >>
> >
> > I don't have access to aarch64 machine which can build glibc.
> > Please configure glibc with --enable-hardcoded-path-in-tests
> > and run elf/tst-gnu2-tls2 under GDB to find out what is going
> > on.
> >
>
> I will check this out H.J.
Does your _dl_tlsdesc_dynamic save ALL caller-saved registers,
except for the return value register? I saw
stp x5, x6, [sp, #16*1]
stp x7, x8, [sp, #16*2]
stp x9, x10, [sp, #16*3]
stp x11, x12, [sp, #16*4]
stp x13, x14, [sp, #16*5]
stp x15, x16, [sp, #16*6]
stp x17, x18, [sp, #16*7]
Do you need to save x1 to x4?
--
H.J.
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