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| author |   Mike Frysinger <vapier@gentoo.org> | 2015-12-28 13:23:57 -0500 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2015-12-28 13:31:07 -0500 |
| commit | cbd2a52033efd9a333508d5cd9bd35bd00a2c06b (patch) | |
| tree | 99e4d7ec1b166400007aa87df4e1fe11fbe48475 /sys-libs/glibc/files | |
| parent | profile/package.mask: Clean up dev-perl/Parse-CPAN-Meta mask entry. (diff) | |
| download | gentoo-cbd2a52033efd9a333508d5cd9bd35bd00a2c06b.tar.gz gentoo-cbd2a52033efd9a333508d5cd9bd35bd00a2c06b.tar.bz2 gentoo-cbd2a52033efd9a333508d5cd9bd35bd00a2c06b.zip | |
sys-libs/glibc: workaround ia64 early ldso crashes #503838
Diffstat (limited to 'sys-libs/glibc/files')
| -rw-r--r-- | sys-libs/glibc/files/2.19/glibc-2.19-ia64-gcc-4.8-reloc-hack.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/sys-libs/glibc/files/2.19/glibc-2.19-ia64-gcc-4.8-reloc-hack.patch b/sys-libs/glibc/files/2.19/glibc-2.19-ia64-gcc-4.8-reloc-hack.patch new file mode 100644 index 000000000000..72a616a046a8 --- /dev/null +++ b/sys-libs/glibc/files/2.19/glibc-2.19-ia64-gcc-4.8-reloc-hack.patch @@ -0,0 +1,32 @@ +https://bugs.gentoo.org/503838 +http://gcc.gnu.org/PR60465 +https://sourceware.org/ml/libc-alpha/2015-12/msg00556.html +https://trofi.github.io/posts/189-glibc-on-ia64-or-how-relocations-bootstrap.html + +newer versions of gcc generate relocations in the elf_get_dynamic_info func +which glibc relies on to populate some info structs. those structs are then +used by ldso to process relocations in itself. glibc requires that there are +no relocations until that point (*after* elf_get_dynamic_info), so we end up +crashing during elf_get_dynamic_info because the relocation has not yet been +processed. + +this hack shuffles the code in a way that tricks gcc into not generating the +relocation. we need to figure out something better for upstream. + +--- a/elf/get-dynamic-info.h ++++ b/elf/get-dynamic-info.h +@@ -66,8 +66,12 @@ elf_get_dynamic_info (struct link_map *l, ElfW(Dyn) *temp) + info[DT_VALTAGIDX (dyn->d_tag) + DT_NUM + DT_THISPROCNUM + + DT_VERSIONTAGNUM + DT_EXTRANUM] = dyn; + else if ((d_tag_utype) DT_ADDRTAGIDX (dyn->d_tag) < DT_ADDRNUM) +- info[DT_ADDRTAGIDX (dyn->d_tag) + DT_NUM + DT_THISPROCNUM +- + DT_VERSIONTAGNUM + DT_EXTRANUM + DT_VALNUM] = dyn; ++ { ++ d_tag_utype i = ++ DT_ADDRTAGIDX (dyn->d_tag) + DT_NUM + DT_THISPROCNUM ++ + DT_VERSIONTAGNUM + DT_EXTRANUM + DT_VALNUM; ++ info[i] = dyn; ++ } + ++dyn; + } + |