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| author | Andreas Jaeger <aj@suse.de> | 2012-03-19 20:55:26 +0100 |
|---|---|---|
| committer | Andreas Jaeger <aj@suse.de> | 2012-03-19 20:55:26 +0100 |
| commit | 9d639b991868f8d139385d4dc4bed6dd6a65c8a6 (patch) | |
| tree | 8839144d40452d9e7b1c5f93a6a751b8b4a35e5e /sysdeps/x86_64/configure.in | |
| parent | bd37f2ee314147c69a39817d590149cf1181ef47 (diff) | |
| download | glibc-9d639b991868f8d139385d4dc4bed6dd6a65c8a6.tar glibc-9d639b991868f8d139385d4dc4bed6dd6a65c8a6.tar.gz glibc-9d639b991868f8d139385d4dc4bed6dd6a65c8a6.tar.bz2 glibc-9d639b991868f8d139385d4dc4bed6dd6a65c8a6.zip | |
Move x86_64/elf files to x86_64
Diffstat (limited to 'sysdeps/x86_64/configure.in')
| -rw-r--r-- | sysdeps/x86_64/configure.in | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/x86_64/configure.in b/sysdeps/x86_64/configure.in new file mode 100644 index 0000000000..c53328b4c9 --- /dev/null +++ b/sysdeps/x86_64/configure.in @@ -0,0 +1,33 @@ +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/x86_64/elf. + +# Check for support of thread-local storage handling in assembler and linker. +AC_CACHE_CHECK(for x86-64 TLS support, libc_cv_x86_64_tls, [dnl +cat > conftest.s <<\EOF + .section ".tdata", "awT", @progbits + .globl foo +foo: .quad 1 + .section ".tbss", "awT", @nobits + .globl bar +bar: .skip 8 + .text +baz: leaq bar@TLSLD(%rip), %rdi + leaq bar@DTPOFF(%rax), %rcx + addq foo@GOTTPOFF(%rip), %rax + movq $bar@TPOFF, %rdx +EOF +dnl +if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then + libc_cv_x86_64_tls=yes +else + libc_cv_x86_64_tls=no +fi +rm -f conftest*]) +if test $libc_cv_x86_64_tls = no; then + AC_MSG_ERROR([the assembler must support TLS]) +fi + +dnl It is always possible to access static and hidden symbols in an +dnl position independent way. +AC_DEFINE(PI_STATIC_AND_HIDDEN) +# work around problem with autoconf and empty lines at the end of files |