+2014-03-07 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
+
+ * configure.ac (TLS_SECTION_ASM_FLAG): Save as tls_section_flag.
+ (LIB_TLS_SPEC): Save as ld_tls_libs.
+ (HAVE_AS_IX86_TLSLDMPLT): Define as 1/0.
+ (HAVE_AS_IX86_TLSLDM): New test.
+ * configure, config.in: Regenerate.
+ * config/i386/i386.c (legitimize_tls_address): Fall back to
+ TLS_MODEL_GLOBAL_DYNAMIC on 32-bit Solaris/x86 if tool chain
+ cannot support TLS_MODEL_LOCAL_DYNAMIC.
+ * config/i386/i386.md (*tls_local_dynamic_base_32_gnu): Use if
+ instead of #ifdef in HAVE_AS_IX86_TLSLDMPLT test.
+
2014-03-07 Paulo Matos <paulo@matos-sorge.com>
* common.opt (fira-loop-pressure): Mark as optimization.
#endif
-/* Define if your assembler and linker support @tlsldmplt. */
+/* Define to 1 if your assembler and linker support @tlsldm. */
+#ifndef USED_FOR_TARGET
+#undef HAVE_AS_IX86_TLSLDM
+#endif
+
+
+/* Define to 1 if your assembler and linker support @tlsldmplt. */
#ifndef USED_FOR_TARGET
#undef HAVE_AS_IX86_TLSLDMPLT
#endif
enum machine_mode tp_mode = Pmode;
int type;
+ /* Fall back to global dynamic model if tool chain cannot support local
+ dynamic. */
+ if (TARGET_SUN_TLS && !TARGET_64BIT
+ && !HAVE_AS_IX86_TLSLDMPLT && !HAVE_AS_IX86_TLSLDM
+ && model == TLS_MODEL_LOCAL_DYNAMIC)
+ model = TLS_MODEL_GLOBAL_DYNAMIC;
+
switch (model)
{
case TLS_MODEL_GLOBAL_DYNAMIC:
output_asm_insn
("lea{l}\t{%&@tlsldm(%1), %0|%0, %&@tlsldm[%1]}", operands);
if (TARGET_SUN_TLS)
-#ifdef HAVE_AS_IX86_TLSLDMPLT
- return "call\t%&@tlsldmplt";
-#else
- return "call\t%p2@plt";
-#endif
+ {
+ if (HAVE_AS_IX86_TLSLDMPLT)
+ return "call\t%&@tlsldmplt";
+ else
+ return "call\t%p2@plt";
+ }
return "call\t%P2";
}
[(set_attr "type" "multi")
force_sjlj_exceptions=yes
enableval=yes
;;
+ lm32*-*-*)
+ force_sjlj_exceptions=yes
+ enableval=yes
+ ;;
*)
force_sjlj_exceptions=no
;;
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 17926 "configure"
+#line 17930 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 18032 "configure"
+#line 18036 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
.section .tdata,"awt",@progbits'
tls_first_major=0
tls_first_minor=0
+ tls_section_flag=t
$as_echo "#define TLS_SECTION_ASM_FLAG 't'" >>confdefs.h
.section ".tdata","awT",@progbits'
tls_first_major=2
tls_first_minor=14
+ tls_section_flag=T
tls_as_opt="--fatal-warnings"
fi
conftest_s="$conftest_s
movq $foo@TPOFF, %rax'
tls_first_major=2
tls_first_minor=14
+ tls_section_flag=T
tls_as_opt=--fatal-warnings
;;
ia64-*-*)
set_have_as_tls=no
fi
+ ld_tls_libs="$LIBS"
# Clear LIBS if we cannot support TLS.
if test $set_have_as_tls = no; then
LIBS=
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ix86_tlsldmplt" >&5
$as_echo "$gcc_cv_as_ix86_tlsldmplt" >&6; }
-if test $gcc_cv_as_ix86_tlsldmplt = yes; then
-$as_echo "#define HAVE_AS_IX86_TLSLDMPLT 1" >>confdefs.h
+cat >>confdefs.h <<_ACEOF
+#define HAVE_AS_IX86_TLSLDMPLT `if test $gcc_cv_as_ix86_tlsldmplt = yes; then echo 1; else echo 0; fi`
+_ACEOF
+
+
+ # Enforce 32-bit output with gas and gld.
+ if test x$gas = xyes; then
+ as_ix86_tls_ldm_opt="--32"
+ fi
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then
+ ld_ix86_tls_ldm_opt="-melf_i386_sol2"
+ else
+ ld_ix86_tls_ldm_opt="-melf_i386"
+ fi
+ fi
+ conftest_s='
+ .section .text,"ax",@progbits
+ .globl _start
+ .type _start, @function
+_start:
+ leal value@tlsldm(%ebx), %eax
+ call ___tls_get_addr@plt
+
+ .section .tdata,"aw'$tls_section_flag'",@progbits
+ .type value, @object
+value:'
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for R_386_TLS_LDM reloc" >&5
+$as_echo_n "checking assembler for R_386_TLS_LDM reloc... " >&6; }
+if test "${gcc_cv_as_ix86_tlsldm+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ gcc_cv_as_ix86_tlsldm=no
+ if test x$gcc_cv_as != x; then
+ $as_echo "$conftest_s" > conftest.s
+ if { ac_try='$gcc_cv_as $gcc_cv_as_flags $as_ix86_tls_ldm_opt -o conftest.o conftest.s >&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+ then
+ if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
+ && $gcc_cv_ld $ld_ix86_tls_ldm_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then
+ if $gcc_cv_objdump -d conftest 2>/dev/null | grep nop > /dev/null \
+ || dis conftest 2>/dev/null | grep nop > /dev/null; then
+ gcc_cv_as_ix86_tlsldm=yes
+ fi
+ fi
+ rm -f conftest
+ else
+ echo "configure: failed program was" >&5
+ cat conftest.s >&5
+ fi
+ rm -f conftest.o conftest.s
+ fi
fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ix86_tlsldm" >&5
+$as_echo "$gcc_cv_as_ix86_tlsldm" >&6; }
+
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_AS_IX86_TLSLDM `if test $gcc_cv_as_ix86_tlsldm = yes; then echo 1; else echo 0; fi`
+_ACEOF
+
;;
.section .tdata,"awt",@progbits'
tls_first_major=0
tls_first_minor=0
+ tls_section_flag=t
changequote([,])dnl
AC_DEFINE(TLS_SECTION_ASM_FLAG, 't',
[Define to the flag used to mark TLS sections if the default (`T') doesn't work.])
.section ".tdata","awT",@progbits'
tls_first_major=2
tls_first_minor=14
+ tls_section_flag=T
tls_as_opt="--fatal-warnings"
fi
conftest_s="$conftest_s
movq $foo@TPOFF, %rax'
tls_first_major=2
tls_first_minor=14
+ tls_section_flag=T
tls_as_opt=--fatal-warnings
;;
ia64-*-*)
# (32-bit x86) only lived in libthread, so check for that. Keep
# set_have_as_tls if found, disable if not.
AC_SEARCH_LIBS([$tga_func], [thread],, [set_have_as_tls=no])
+ ld_tls_libs="$LIBS"
# Clear LIBS if we cannot support TLS.
if test $set_have_as_tls = no; then
LIBS=
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
gcc_cv_as_ix86_tlsldmplt=yes
fi
- rm -f conftest],
- [AC_DEFINE(HAVE_AS_IX86_TLSLDMPLT, 1,
- [Define if your assembler and linker support @tlsldmplt.])])
+ rm -f conftest])
+ AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDMPLT,
+ [`if test $gcc_cv_as_ix86_tlsldmplt = yes; then echo 1; else echo 0; fi`],
+ [Define to 1 if your assembler and linker support @tlsldmplt.])
+
+ # Enforce 32-bit output with gas and gld.
+ if test x$gas = xyes; then
+ as_ix86_tls_ldm_opt="--32"
+ fi
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then
+ ld_ix86_tls_ldm_opt="-melf_i386_sol2"
+ else
+ ld_ix86_tls_ldm_opt="-melf_i386"
+ fi
+ fi
+ conftest_s='
+ .section .text,"ax",@progbits
+ .globl _start
+ .type _start, @function
+_start:
+ leal value@tlsldm(%ebx), %eax
+ call ___tls_get_addr@plt
+
+ .section .tdata,"aw'$tls_section_flag'",@progbits
+ .type value, @object
+value:'
+ gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM reloc],
+ gcc_cv_as_ix86_tlsldm,,
+ [$as_ix86_tls_ldm_opt],
+ [$conftest_s],
+ [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
+ && $gcc_cv_ld $ld_ix86_tls_ldm_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then
+ if $gcc_cv_objdump -d conftest 2>/dev/null | grep nop > /dev/null \
+ || dis conftest 2>/dev/null | grep nop > /dev/null; then
+ gcc_cv_as_ix86_tlsldm=yes
+ fi
+ fi
+ rm -f conftest])
+ AC_DEFINE_UNQUOTED(HAVE_AS_IX86_TLSLDM,
+ [`if test $gcc_cv_as_ix86_tlsldm = yes; then echo 1; else echo 0; fi`],
+ [Define to 1 if your assembler and linker support @tlsldm.])
;;
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