[2/2,v3] sim: start unifying portability shims

Message ID 20210613033914.32283-2-vapier@gentoo.org
State New
Headers show
Series
  • [1/2] sim: unify sim-load.o building
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Commit Message

Simon Marchi via Gdb-patches June 13, 2021, 3:39 a.m.
There are some functions that gnulib does not yet provide fallbacks
for, so start a common file of our own for holding existing stubs.
---
 sim/Makefile.in           | 19 +++++++++++
 sim/bfin/interp.c         | 20 +-----------
 sim/common/Make-common.in |  1 +
 sim/common/local.mk       |  1 +
 sim/common/portability.c  | 67 +++++++++++++++++++++++++++++++++++++++
 sim/common/portability.h  | 47 +++++++++++++++++++++++++++
 sim/cris/traps.c          |  1 +
 sim/m32r/traps-linux.c    |  1 +
 8 files changed, 138 insertions(+), 19 deletions(-)
 create mode 100644 sim/common/portability.c
 create mode 100644 sim/common/portability.h

-- 
2.31.1

Patch

diff --git a/sim/bfin/interp.c b/sim/bfin/interp.c
index 2e9696f8bfe1..10de001d7ce7 100644
--- a/sim/bfin/interp.c
+++ b/sim/bfin/interp.c
@@ -30,6 +30,7 @@ 
 #include <unistd.h>
 #include <sys/time.h>
 
+#include "portability.h"
 #include "sim/callback.h"
 #include "gdb/signals.h"
 #include "sim-main.h"
@@ -74,25 +75,6 @@ 
 #include "dv-bfin_cec.h"
 #include "dv-bfin_mmu.h"
 
-#ifndef HAVE_GETUID
-# define getuid() 0
-#endif
-#ifndef HAVE_GETGID
-# define getgid() 0
-#endif
-#ifndef HAVE_GETEUID
-# define geteuid() 0
-#endif
-#ifndef HAVE_GETEGID
-# define getegid() 0
-#endif
-#ifndef HAVE_SETUID
-# define setuid(uid) -1
-#endif
-#ifndef HAVE_SETGID
-# define setgid(gid) -1
-#endif
-
 static const char cb_linux_stat_map_32[] =
 /* Linux kernel 32bit layout:  */
 "st_dev,2:space,2:st_ino,4:st_mode,2:st_nlink,2:st_uid,2:st_gid,2:st_rdev,2:"
diff --git a/sim/common/Make-common.in b/sim/common/Make-common.in
index 8454d165830f..7a5bbc1a985c 100644
--- a/sim/common/Make-common.in
+++ b/sim/common/Make-common.in
@@ -254,6 +254,7 @@  EXTRA_LIBS = $(BFD_LIB) $(OPCODES_LIB) $(LIBINTL) $(LIBIBERTY_LIB) \
 	$(CONFIG_LIBS) $(SIM_EXTRA_LIBS) $(LIBDL) $(LIBGNU) $(LIBGNU_EXTRA_LIBS)
 
 COMMON_OBJS_NAMES = \
+	portability.o \
 	sim-load.o \
 	version.o
 COMMON_OBJS = $(COMMON_OBJS_NAMES:%=../common/common_libcommon_a-%)
diff --git a/sim/common/local.mk b/sim/common/local.mk
index a340febfcdd1..076335d0b427 100644
--- a/sim/common/local.mk
+++ b/sim/common/local.mk
@@ -34,6 +34,7 @@  noinst_LIBRARIES += %D%/libcommon.a
 	-I../bfd \
 	-I..
 %C%_libcommon_a_SOURCES = \
+	%D%/portability.c \
 	%D%/sim-load.c \
 	%D%/version.c
 
diff --git a/sim/common/portability.c b/sim/common/portability.c
new file mode 100644
index 000000000000..f0ccc46d37eb
--- /dev/null
+++ b/sim/common/portability.c
@@ -0,0 +1,67 @@ 
+/* Portability shims for missing OS support.
+   Copyright (C) 2021 Free Software Foundation, Inc.
+   Contributed by Mike Frysinger.
+
+This file is part of the GNU Simulators.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* This must come before any other includes.  */
+#include "defs.h"
+
+#include <unistd.h>
+
+#include "portability.h"
+
+#ifndef HAVE_GETEGID
+int getegid(void)
+{
+  return 0;
+}
+#endif
+
+#ifndef HAVE_GETEUID
+int geteuid(void)
+{
+  return 0;
+}
+#endif
+
+#ifndef HAVE_GETGID
+int getgid(void)
+{
+  return 0;
+}
+#endif
+
+#ifndef HAVE_GETUID
+int getuid(void)
+{
+  return 0;
+}
+#endif
+
+#ifndef HAVE_SETGID
+int setgid(int gid)
+{
+  return -1;
+}
+#endif
+
+#ifndef HAVE_SETUID
+int setuid(int uid)
+{
+  return -1;
+}
+#endif
diff --git a/sim/common/portability.h b/sim/common/portability.h
new file mode 100644
index 000000000000..12971f6a1075
--- /dev/null
+++ b/sim/common/portability.h
@@ -0,0 +1,47 @@ 
+/* Portability shims for missing OS support.
+   Copyright (C) 2021 Free Software Foundation, Inc.
+   Contributed by Mike Frysinger.
+
+This file is part of the GNU Simulators.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef PORTABILITY_H
+#define PORTABILITY_H
+
+#ifndef HAVE_GETEGID
+int getegid(void);
+#endif
+
+#ifndef HAVE_GETEUID
+int geteuid(void);
+#endif
+
+#ifndef HAVE_GETGID
+int getgid(void);
+#endif
+
+#ifndef HAVE_GETUID
+int getuid(void);
+#endif
+
+#ifndef HAVE_SETGID
+int setgid(int gid);
+#endif
+
+#ifndef HAVE_SETUID
+int setuid(int uid);
+#endif
+
+#endif
diff --git a/sim/cris/traps.c b/sim/cris/traps.c
index 99344a283df9..a55f7dfb9927 100644
--- a/sim/cris/traps.c
+++ b/sim/cris/traps.c
@@ -20,6 +20,7 @@  along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 /* This must come before any other includes.  */
 #include "defs.h"
 
+#include "portability.h"
 #include "sim-main.h"
 #include "sim-syscall.h"
 #include "sim-options.h"
diff --git a/sim/m32r/traps-linux.c b/sim/m32r/traps-linux.c
index 63ed13788a51..1e3a08497e90 100644
--- a/sim/m32r/traps-linux.c
+++ b/sim/m32r/traps-linux.c
@@ -20,6 +20,7 @@ 
 /* This must come before any other includes.  */
 #include "defs.h"
 
+#include "portability.h"
 #include "sim-main.h"
 #include "sim-syscall.h"
 #include "syscall.h"