1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/powerpc32/elf.
if test "$usetls" != no; then
# Check for support of thread-local storage handling in assembler and
# linker.
AC_CACHE_CHECK(for powerpc32 TLS support, libc_cv_powerpc32_tls, [dnl
cat > conftest.s <<\EOF
.section ".tdata","awT",@progbits
x: .long 1
x1: .long 1
x2: .long 1
.text
addi 3,31,x@got@tlsgd
addi 3,31,x1@got@tlsld
addi 9,3,x1@dtprel
addis 9,3,x2@dtprel@ha
addi 9,9,x2@dtprel@l
lwz 0,x1@dtprel(3)
addis 9,3,x2@dtprel@ha
lwz 0,x2@dtprel@l(9)
lwz 9,x3@got@tprel(31)
add 9,9,x@tls
addi 9,2,x1@tprel
addis 9,2,x2@tprel@ha
addi 9,9,x2@tprel@l
EOF
dnl
if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
libc_cv_powerpc32_tls=yes
else
libc_cv_powerpc32_tls=no
fi
rm -f conftest*])
if test $libc_cv_powerpc32_tls = yes; then
AC_DEFINE(HAVE_TLS_SUPPORT)
fi
fi
dnl It is always possible to access static and hidden symbols in an
dnl position independent way.
AC_DEFINE(PI_STATIC_AND_HIDDEN)
|