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[PATCH] sim: bfin: check for kill/pread
- From: Mike Frysinger <vapier at gentoo dot org>
- To: gdb-patches at sourceware dot org
- Cc: toolchain-devel at blackfin dot uclinux dot org
- Date: Thu, 17 Mar 2011 02:43:21 -0400
- Subject: [PATCH] sim: bfin: check for kill/pread
If the host system (like Windows) doesn't support these functions,
then make sure we don't use them.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-03-16 Mike Frysinger <vapier@gentoo.org>
* configure.ac (AC_CHECK_FUNCS): Check for kill and pread.
* configure: Regenerate.
* config.in: Regenerate.
* interp.c (bfin_syscall): Check for HAVE_{KILL,PREAD} before using
kill or pread.
---
sim/bfin/config.in | 6 ++++++
sim/bfin/configure | 2 +-
sim/bfin/configure.ac | 2 +-
sim/bfin/interp.c | 9 +++++++++
4 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/sim/bfin/config.in b/sim/bfin/config.in
index b44011d..2b25645 100644
--- a/sim/bfin/config.in
+++ b/sim/bfin/config.in
@@ -55,6 +55,9 @@
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
+/* Define to 1 if you have the `kill' function. */
+#undef HAVE_KILL
+
/* Define to 1 if you have the `nsl' library (-lnsl). */
#undef HAVE_LIBNSL
@@ -79,6 +82,9 @@
/* Define to 1 if you have the <net/if.h> header file. */
#undef HAVE_NET_IF_H
+/* Define to 1 if you have the `pread' function. */
+#undef HAVE_PREAD
+
/* Define to 1 if you have the `setgid' function. */
#undef HAVE_SETGID
diff --git a/sim/bfin/configure b/sim/bfin/configure
index 02bfebb..70e038d 100755
--- a/sim/bfin/configure
+++ b/sim/bfin/configure
@@ -5151,7 +5151,7 @@ fi
fi
-for ac_func in getuid getgid geteuid getegid setuid setgid mmap munmap
+for ac_func in getuid getgid geteuid getegid setuid setgid mmap munmap kill pread
do :
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
diff --git a/sim/bfin/configure.ac b/sim/bfin/configure.ac
index fddebc9..6c03107 100644
--- a/sim/bfin/configure.ac
+++ b/sim/bfin/configure.ac
@@ -47,7 +47,7 @@ SIM_AC_OPTION_HARDWARE(yes,,\
eth_phy \
)
-AC_CHECK_FUNCS([getuid getgid geteuid getegid setuid setgid mmap munmap])
+AC_CHECK_FUNCS([getuid getgid geteuid getegid setuid setgid mmap munmap kill pread])
AC_CHECK_HEADERS([sys/ioctl.h sys/mman.h net/if.h linux/if_tun.h linux/mii.h])
BFIN_SIM_EXTRA_OBJS=
diff --git a/sim/bfin/interp.c b/sim/bfin/interp.c
index 32e2adc..aac35e6 100644
--- a/sim/bfin/interp.c
+++ b/sim/bfin/interp.c
@@ -297,6 +297,7 @@ bfin_syscall (SIM_CPU *cpu)
sc.errcode = TARGET_ENOSYS;
else
{
+#ifdef HAVE_PREAD
char *data = xmalloc (sc.arg2);
/* XXX: Should add a cb->pread. */
@@ -306,6 +307,9 @@ bfin_syscall (SIM_CPU *cpu)
sc.errcode = TARGET_EINVAL;
free (data);
+#else
+ sc.errcode = TARGET_ENOSYS;
+#endif
}
if (sc.errcode)
@@ -495,8 +499,13 @@ bfin_syscall (SIM_CPU *cpu)
}
else
{
+#ifdef HAVE_KILL
sc.result = kill (sc.arg1, sc.arg2);
goto sys_finish;
+#else
+ sc.result = -1;
+ sc.errcode = TARGET_ENOSYS;
+#endif
}
break;
--
1.7.4.1