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libgo: Remove Solaris 8 & 9 support.

Browse source 
From Rainer Orth.

From-SVN: r209448
This commit is contained in:
Ian Lance Taylor 2014-04-16 20:33:57 +00:00
parent 1dbdb75618
commit 73cc28d4e7
5 changed files with 0 additions and 55 deletions
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3
libgo/config.h.in
View file

@ -341,9 +341,6 @@
*/
#undef LT_OBJDIR
/* Define if makecontext expects top of stack in uc_stack. */
#undef MAKECONTEXT_STACK_TOP
/* Name of package */
#undef PACKAGE

19
libgo/configure vendored
View file

@ -13889,11 +13889,6 @@ case "$target" in
# msghdr in <sys/socket.h>.
OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500"
;;
*-*-solaris2.[89])
# Solaris 8/9 need this so struct msghdr gets the msg_control
# etc. fields in <sys/socket.h> (_XPG4_2).
OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500 -D_XOPEN_SOURCE_EXTENDED -D__EXTENSIONS__"
;;
*-*-solaris2.1[01])
# Solaris 10+ needs this so struct msghdr gets the msg_control
# etc. fields in <sys/socket.h> (_XPG4_2). _XOPEN_SOURCE=600 as
@ -15053,20 +15048,6 @@ $as_echo "#define HAVE_STRUCT_EXCEPTION 1" >>confdefs.h
fi
case "$target" in
sparc*-*-solaris2.[89]*)
libgo_cv_lib_makecontext_stack_top=yes
;;
*)
libgo_cv_lib_makecontext_stack_top=no
;;
esac
if test "$libgo_cv_lib_makecontext_stack_top" = "yes"; then
$as_echo "#define MAKECONTEXT_STACK_TOP 1" >>confdefs.h
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether setcontext clobbers TLS variables" >&5
$as_echo_n "checking whether setcontext clobbers TLS variables... " >&6; }
if test "${libgo_cv_lib_setcontext_clobbers_tls+set}" = set; then :

20
libgo/configure.ac
View file

@ -316,11 +316,6 @@ case "$target" in
# msghdr in <sys/socket.h>.
OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500"
;;
*-*-solaris2.[[89]])
# Solaris 8/9 need this so struct msghdr gets the msg_control
# etc. fields in <sys/socket.h> (_XPG4_2).
OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500 -D_XOPEN_SOURCE_EXTENDED -D__EXTENSIONS__"
;;
*-*-solaris2.1[[01]])
# Solaris 10+ needs this so struct msghdr gets the msg_control
# etc. fields in <sys/socket.h> (_XPG4_2). _XOPEN_SOURCE=600 as
@ -662,21 +657,6 @@ if test "$libgo_has_struct_exception" = "yes"; then
[Define to 1 if <math.h> defines struct exception])
fi
dnl Check if makecontext expects the uc_stack member of ucontext to point
dnl to the top of the stack.
case "$target" in
sparc*-*-solaris2.[[89]]*)
libgo_cv_lib_makecontext_stack_top=yes
;;
*)
libgo_cv_lib_makecontext_stack_top=no
;;
esac
if test "$libgo_cv_lib_makecontext_stack_top" = "yes"; then
AC_DEFINE(MAKECONTEXT_STACK_TOP, 1,
[Define if makecontext expects top of stack in uc_stack.])
fi
dnl See whether setcontext changes the value of TLS variables.
AC_CACHE_CHECK([whether setcontext clobbers TLS variables],
[libgo_cv_lib_setcontext_clobbers_tls],

10
libgo/go/math/ldexp.go
View file

@ -17,16 +17,6 @@ func libc_ldexp(float64, int) float64
func Ldexp(frac float64, exp int) float64 {
r := libc_ldexp(frac, exp)
// Work around a bug in the implementation of ldexp on Solaris
// 9. If multiplying a negative number by 2 raised to a
// negative exponent underflows, we want to return negative
// zero, but the Solaris 9 implementation returns positive
// zero. This workaround can be removed when and if we no
// longer care about Solaris 9.
if r == 0 && frac < 0 && exp < 0 {
r = Copysign(0, frac)
}
return r
}

3
libgo/runtime/proc.c
View file

@ -1212,9 +1212,6 @@ runtime_newextram(void)
// here we need to set up the context for g0.
getcontext(&mp->g0->context);
mp->g0->context.uc_stack.ss_sp = g0_sp;
#ifdef MAKECONTEXT_STACK_TOP
mp->g0->context.uc_stack.ss_sp += g0_spsize;
#endif
mp->g0->context.uc_stack.ss_size = g0_spsize;
makecontext(&mp->g0->context, kickoff, 0);