about summary refs log tree commit diff
path: root/sysdeps/x86/Makefile
diff options
context:
space:
mode:
authorFangrui Song <maskray@google.com>2021-08-30 13:59:33 -0700
committerFangrui Song <maskray@google.com>2021-08-31 20:23:34 -0700
commit224edada607ebc6aaa1aadaae423128fae7880df (patch)
tree95f5da42b7f141f21bb460049257a6f34a2a7ce0 /sysdeps/x86/Makefile
parent60dfb30976761c9b20a22f18356e0c3e581f5394 (diff)
downloadglibc-224edada607ebc6aaa1aadaae423128fae7880df.tar.gz
glibc-224edada607ebc6aaa1aadaae423128fae7880df.tar.xz
glibc-224edada607ebc6aaa1aadaae423128fae7880df.zip
configure: Allow LD to be LLD 13.0.0 or above [BZ #26558]
When using LLD (LLVM linker) as the linker, configure prints a confusing
message.

    *** These critical programs are missing or too old: GNU ld

LLD>=13.0.0 can build glibc --enable-static-pie. (8.0.0 needs one
workaround for -Wl,-defsym=_begin=0. 9.0.0 works with
--disable-static-pie).

XFAIL two tests sysdeps/x86/tst-ifunc-isa-* which have the BZ #28154
issue (LLD follows the PowerPC port of GNU ld for ifunc by placing
IRELATIVE relocations in .rela.dyn, triggering a glibc ifunc fragility).

The set of dynamic symbols is the same with GNU ld and LLD,
modulo unused SHN_ABS version node symbols.

For comparison, gold does not support --enable-static-pie
yet (--no-dynamic-linker is unsupported BZ #22221), yet
has 6 failures more than LLD. gold linked libc.so has
larger .dynsym differences with GNU ld and LLD
(non-default version symbols are changed to default versions
by a version script BZ #28196).
Diffstat (limited to 'sysdeps/x86/Makefile')
-rw-r--r--sysdeps/x86/Makefile4
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile
index 5ee06f9473..402986ff68 100644
--- a/sysdeps/x86/Makefile
+++ b/sysdeps/x86/Makefile
@@ -22,12 +22,16 @@ tests += \
   tst-ifunc-isa-1-static
 tests-static += \
   tst-ifunc-isa-1-static
+test-xfail-tst-ifunc-isa-1 = $(with-lld)
+test-xfail-tst-ifunc-isa-1-static = $(with-lld)
 ifneq ($(have-tunables),no)
 tests += \
   tst-ifunc-isa-2 \
   tst-ifunc-isa-2-static
 tests-static += \
   tst-ifunc-isa-2-static
+test-xfail-tst-ifunc-isa-2 = $(with-lld)
+test-xfail-tst-ifunc-isa-2-static = $(with-lld)
 endif
 endif
 endif