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authorMike Frysinger <vapier@gentoo.org>2022-11-05 10:02:58 +0700
committerMike Frysinger <vapier@gentoo.org>2022-11-05 10:04:30 +0700
commit0fa7ad4eb4f76e24fabf6a15197f078a3ba60d80 (patch)
tree3f0f2d0fbf6b9ccbaaa1eac7650140816229f1e6
parent1b2af6a41e68e6deac7c54183131e01cf34584b5 (diff)
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sim: ppc: drop unused /dev/zero logic
Nothing in the tree checks this option, or has checked for decades. The pre-cvs-import ChangeLog suggests this was added & removed back then, but can't be sure as that history doesn't exist in the VCS.
-rw-r--r--sim/ppc/Makefile.in4
-rwxr-xr-xsim/ppc/configure49
-rw-r--r--sim/ppc/configure.ac28
-rw-r--r--sim/ppc/options.c4
4 files changed, 1 insertions, 84 deletions
diff --git a/sim/ppc/Makefile.in b/sim/ppc/Makefile.in
index 6575f96..72dc479 100644
--- a/sim/ppc/Makefile.in
+++ b/sim/ppc/Makefile.in
@@ -74,7 +74,6 @@ FLOAT_CFLAGS = @sim_float@
MONITOR_CFLAGS = @sim_monitor@
MODEL_CFLAGS = @sim_model@ @sim_default_model@ @sim_model_issue@
TERMIO_CFLAGS = @sim_termio@
-DEVZERO_CFLAGS = @sim_devzero@
CONFIG_CFLAGS = \
$(SMP_CFLAGS) \
$(XOR_ENDIAN_CFLAGS) \
@@ -84,8 +83,7 @@ CONFIG_CFLAGS = \
$(FLOAT_CFLAGS) \
$(MONITOR_CFLAGS) \
$(MODEL_CFLAGS) \
- $(TERMIO_CFLAGS) \
- $(DEVZERO_CFLAGS)
+ $(TERMIO_CFLAGS)
SIM_FPU_CFLAGS = -DHAVE_COMMON_FPU -I../common -I${srcdir}/../common
STD_CFLAGS = $(CFLAGS) $(WERROR_CFLAGS) $(INLINE_CFLAGS) $(CONFIG_CFLAGS) $(WARN_CFLAGS) $(INCLUDES) $(INCGNU) $(SIM_FPU_CFLAGS)
diff --git a/sim/ppc/configure b/sim/ppc/configure
index c231e51..df95a6f 100755
--- a/sim/ppc/configure
+++ b/sim/ppc/configure
@@ -621,7 +621,6 @@ ac_includes_default="\
ac_subst_vars='LTLIBOBJS
LIBOBJS
-sim_devzero
sim_termio
sim_model_issue
sim_default_model
@@ -4157,53 +4156,6 @@ _ACEOF
fi
-sim_devzero=""
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for /dev/zero" >&5
-$as_echo_n "checking for /dev/zero... " >&6; }
-if ${ac_cv_devzero+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test "$cross_compiling" = yes; then :
- ac_cv_devzero=no
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-#include <fcntl.h>
-main () {
- char buf[2048];
- int i;
- int fd = open ("/dev/zero", O_RDONLY);
- if (fd < 0)
- return 1;
- for (i = 0; i < sizeof (buf); i++)
- buf[i] = 1;
- if (read (fd, buf, sizeof (buf)) != sizeof (buf))
- return 1;
- for (i = 0; i < sizeof (buf); i++)
- if (buf[i])
- return 1;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
- ac_cv_devzero=yes
-else
- ac_cv_devzero=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
- conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_devzero" >&5
-$as_echo "$ac_cv_devzero" >&6; }
-if test $ac_cv_devzero = yes; then
- sim_devzero="-DHAVE_DEVZERO"
-else
- sim_devzero=""
-fi
-
# Since we run commands on the build system, we have to create a
# separate config header for the build system if build != host.
if test x$host = x$build; then
@@ -4259,7 +4211,6 @@ fi
-
ac_config_files="$ac_config_files Makefile"
ac_config_commands="$ac_config_commands default"
diff --git a/sim/ppc/configure.ac b/sim/ppc/configure.ac
index 3054202..542e8a1 100644
--- a/sim/ppc/configure.ac
+++ b/sim/ppc/configure.ac
@@ -490,33 +490,6 @@ fi
AC_CHECK_TYPES(long long)
-dnl Figure out if /dev/zero exists or not
-sim_devzero=""
-AC_MSG_CHECKING(for /dev/zero)
-AC_CACHE_VAL(ac_cv_devzero,
-[AC_TRY_RUN([#include <fcntl.h>
-main () {
- char buf[2048];
- int i;
- int fd = open ("/dev/zero", O_RDONLY);
- if (fd < 0)
- return 1;
- for (i = 0; i < sizeof (buf); i++)
- buf[i] = 1;
- if (read (fd, buf, sizeof (buf)) != sizeof (buf))
- return 1;
- for (i = 0; i < sizeof (buf); i++)
- if (buf[i])
- return 1;
- return 0;
-}],[ac_cv_devzero=yes],[ac_cv_devzero=no],[ac_cv_devzero=no])])
-AC_MSG_RESULT($ac_cv_devzero)
-if test $ac_cv_devzero = yes; then
- sim_devzero="-DHAVE_DEVZERO"
-else
- sim_devzero=""
-fi
-
# Since we run commands on the build system, we have to create a
# separate config header for the build system if build != host.
if test x$host = x$build; then
@@ -570,7 +543,6 @@ AC_SUBST(sim_model)
AC_SUBST(sim_default_model)
AC_SUBST(sim_model_issue)
AC_SUBST(sim_termio)
-AC_SUBST(sim_devzero)
AC_OUTPUT(Makefile,
[case x$CONFIG_HEADERS in xconfig.h:config.in) echo > stamp-h ;; esac])
diff --git a/sim/ppc/options.c b/sim/ppc/options.c
index 8e1c262..a696db1 100644
--- a/sim/ppc/options.c
+++ b/sim/ppc/options.c
@@ -198,10 +198,6 @@ print_options (void)
#ifdef HAVE_TERMIO_STRUCTURE
"HAVE_TERMIO_STRUCTURE",
#endif
-
-#ifdef HAVE_DEVZERO
- "HAVE_DEVZERO",
-#endif
};
int i;