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| author | Andreas Jaeger <aj@suse.de> | 2012-03-23 17:37:30 +0100 |
|---|---|---|
| committer | Andreas Jaeger <jaegerandi@gmail.com> | 2012-03-28 09:26:30 +0200 |
| commit | 8cd23080c4689daed28fee31f38ca4ce5570375d (patch) | |
| tree | 0ffc1de080a83bef2b151126936f83c2f3516186 /sysdeps/sparc/configure.in | |
| parent | 27a0f3a948f3c6eb9ea4535332277af097a35b77 (diff) | |
| download | glibc-8cd23080c4689daed28fee31f38ca4ce5570375d.tar.gz glibc-8cd23080c4689daed28fee31f38ca4ce5570375d.tar.xz glibc-8cd23080c4689daed28fee31f38ca4ce5570375d.zip | |
Move sysdeps/sparc/{,sparc32,sparc64}/elf files
* sysdeps/sparc/elf/configure.in: Moved to ... * sysdeps/sparc/configure.in: ... here. * sysdeps/sparc/elf/configure: Delete file. * sysdeps/sparc/sparc32/elf/start.S: Moved to ... * sysdeps/sparc/sparc32/start.S: ... here. * sysdeps/sparc/sparc64/elf/start.S: Moved to ... * sysdeps/sparc/sparc64/start.S: ... here. * sysdeps/sparc/sparc32/elf/Makefile: Merged into ... * sysdeps/sparc/sparc32/Makefile: ... this. * sysdeps/sparc/sparc64/elf/Makefile: Merged into ... * sysdeps/sparc/sparc64/Makefile: ... this.
Diffstat (limited to 'sysdeps/sparc/configure.in')
| -rw-r--r-- | sysdeps/sparc/configure.in | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/sysdeps/sparc/configure.in b/sysdeps/sparc/configure.in index b80d9cbf59..a85d0544f0 100644 --- a/sysdeps/sparc/configure.in +++ b/sysdeps/sparc/configure.in @@ -28,3 +28,76 @@ rm -f conftest*]) if test $libc_cv_sparc_as_vis3 = yes; then AC_DEFINE(HAVE_AS_VIS3_SUPPORT) fi + +# Check for support of thread-local storage handling in assembler and linker. +AC_CACHE_CHECK(for sparc TLS support, libc_cv_sparc_tls, [dnl +changequote(,)dnl +cat > conftest.S <<\EOF + .section ".tdata", "awT", @progbits + .globl foo +foo: .word 1 + .section ".tbss", "awT", @nobits + .globl bar +bar: .skip 4 + .text +baz: sethi %tgd_hi22(foo), %l1 + add %l1, %tgd_lo10(foo), %l1 + add %l7, %l1, %o0, %tgd_add(foo) + call __tls_get_addr, %tgd_call(foo) + sethi %tldm_hi22(bar), %l1 + add %l1, %tldm_lo10(bar), %l1 + add %l7, %l1, %o0, %tldm_add(bar) + call __tls_get_addr, %tldm_call(bar) + sethi %tldo_hix22(bar), %l1 + xor %l1, %tldo_lox10(bar), %l1 + add %o0, %l1, %l1, %tldo_add(bar) + sethi %tie_hi22(foo), %l1 + add %l1, %tie_lo10(foo), %l1 +#ifdef __arch64__ + ldx [%l7 + %l1], %l1, %tie_ldx(foo) +#else + ld [%l7 + %l1], %l1, %tie_ld(foo) +#endif + add %g7, %l1, %l1, %tie_add(foo) + sethi %tle_hix22(foo), %l1 + xor %l1, %tle_lox10(foo), %l1 +EOF +changequote([,])dnl +dnl +if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.S 1>&AS_MESSAGE_LOG_FD); then + libc_cv_sparc_tls=yes +else + libc_cv_sparc_tls=no +fi +rm -f conftest*]) +if test $libc_cv_sparc_tls = no; then + AC_MSG_ERROR([the assembler must support TLS]) +fi + +# Check for a GCC emitting GOTDATA relocations. +AC_CACHE_CHECK(for sparc gcc GOTDATA reloc support, libc_cv_sparc_gcc_gotdata, [dnl +changequote(,)dnl +cat > conftest.c <<\EOF +int data; +int foo(void) +{ + return data; +} +EOF +changequote([,])dnl +dnl +libc_cv_sparc_gcc_gotdata=no +if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS -O2 -fPIC conftest.c 1>&AS_MESSAGE_LOG_FD); then + if grep -q 'gdop_hix22' conftest.s \ + && grep -q 'gdop_lox10' conftest.s; then + libc_cv_sparc_gcc_gotdata=yes + fi +fi +rm -f conftest*]) +if test $libc_cv_sparc_gcc_gotdata = yes; then + AC_DEFINE(HAVE_GCC_GOTDATA) +fi + +if test $libc_cv_sparc_gcc_gotdata = yes; then + AC_DEFINE(PI_STATIC_AND_HIDDEN) +fi |