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author | Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> | 2017-07-17 17:48:59 -0300 |
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committer | Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> | 2017-07-17 17:49:26 -0300 |
commit | 91ac3a7d8474480685632cd25f844d3154c69fdf (patch) | |
tree | e83a0146b14a08bafb9b9d5a25d83f7c715b266c /ChangeLog | |
parent | ae5c498d93d049d9574d3f8f18e62cac64cbdf5c (diff) | |
download | glibc-91ac3a7d8474480685632cd25f844d3154c69fdf.tar.gz glibc-91ac3a7d8474480685632cd25f844d3154c69fdf.tar.xz glibc-91ac3a7d8474480685632cd25f844d3154c69fdf.zip |
powerpc: Fix float128 IFUNC relocations [BZ #21707]
The patch proposed by Peter Bergner [1] to libgcc in order to fix [BZ #21707] adds a dependency on a symbol provided by the loader, forcing the loader to be linked to tests after libgcc was linked. It also requires to read the thread pointer during IRELA relocations. Tested on powerpc, powerpc64, powerpc64le, s390x and x86_64. [1] https://sourceware.org/ml/libc-alpha/2017-06/msg01383.html [BZ #21707] * csu/libc-start.c (LIBC_START_MAIN): Perform IREL{,A} relocations before or after initializing the TCB on statically linked executables. That's a per-architecture definition. * elf/rtld.c (dl_main): Add a comment about thread-local variables initialization. * sysdeps/generic/libc-start.h: New file. Define ARCH_APPLY_IREL and ARCH_SETUP_IREL. * sysdeps/powerpc/Makefile: [$(subdir) = elf && $(multi-arch) != no] (tests-static-internal): Add tst-tlsifunc-static. [$(subdir) = elf && $(multi-arch) != no && $(build-shared) == yes] (tests-internal): Add tst-tlsifunc. * sysdeps/powerpc/tst-tlsifunc.c: New file. * sysdeps/powerpc/tst-tlsifunc-static.c: Likewise. * sysdeps/powerpc/powerpc64le/Makefile (f128-loader-link): New variable. [$(subdir) = math] (test-float128% test-ifloat128%): Force linking to the loader after linking to libgcc. [$(subdir) = wcsmbs || $(subdir) = stdlib] (bug-strtod bug-strtod2) (bug-strtod2 tst-strtod-round tst-wcstod-round tst-strtod6 tst-strrom) (tst-strfrom-locale strfrom-skeleton): Likewise. * sysdeps/unix/sysv/linux/powerpc/libc-start.h: New file. Define ARCH_APPLY_IREL and ARCH_SETUP_IREL.
Diffstat (limited to 'ChangeLog')
-rw-r--r-- | ChangeLog | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 1195de4701..baf85432cb 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,30 @@ +2017-07-17 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> + + [BZ #21707] + * csu/libc-start.c (LIBC_START_MAIN): Perform IREL{,A} + relocations before or after initializing the TCB on statically + linked executables. That's a per-architecture definition. + * elf/rtld.c (dl_main): Add a comment about thread-local + variables initialization. + * sysdeps/generic/libc-start.h: New file. Define + ARCH_APPLY_IREL and ARCH_SETUP_IREL. + * sysdeps/powerpc/Makefile: + [$(subdir) = elf && $(multi-arch) != no] (tests-static-internal): Add + tst-tlsifunc-static. + [$(subdir) = elf && $(multi-arch) != no && $(build-shared) == yes] + (tests-internal): Add tst-tlsifunc. + * sysdeps/powerpc/tst-tlsifunc.c: New file. + * sysdeps/powerpc/tst-tlsifunc-static.c: Likewise. + * sysdeps/powerpc/powerpc64le/Makefile (f128-loader-link): New + variable. + [$(subdir) = math] (test-float128% test-ifloat128%): Force + linking to the loader after linking to libgcc. + [$(subdir) = wcsmbs || $(subdir) = stdlib] (bug-strtod bug-strtod2) + (bug-strtod2 tst-strtod-round tst-wcstod-round tst-strtod6 tst-strrom) + (tst-strfrom-locale strfrom-skeleton): Likewise. + * sysdeps/unix/sysv/linux/powerpc/libc-start.h: New file. Define + ARCH_APPLY_IREL and ARCH_SETUP_IREL. + 2017-07-17 DJ Delorie <dj@redhat.com> * nss/nss_test.h: New. |