Now also compiles on NetBSD (although untested)

Makefile

@@ -22,6 +22,7 @@ dist:
 	$(LN) -s . $(PACKAGE)-$(VERSION)
 	@$(TAR) $(PACKAGE)-$(VERSION).tar.gz \
 		$(PACKAGE)-$(VERSION)/src/linux.c \
+		$(PACKAGE)-$(VERSION)/src/netbsd.c \
 		$(PACKAGE)-$(VERSION)/src/strace.c \
 		$(PACKAGE)-$(VERSION)/src/Makefile \
 		$(PACKAGE)-$(VERSION)/src/project.conf \

src/Makefile

@@ -15,16 +15,19 @@ INSTALL	= install
 
 all: $(TARGETS)
 
-strace_OBJS = linux.o strace.o
+strace_OBJS = linux.o netbsd.o strace.o
 strace_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 strace_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
 
 strace: $(strace_OBJS)
 	$(CC) -o strace $(strace_OBJS) $(strace_LDFLAGS)
 
-linux.o: linux.c
+linux.o: linux.c linux.h
 	$(CC) $(strace_CFLAGS) -c linux.c
 
+netbsd.o: netbsd.c netbsd.h
+	$(CC) $(strace_CFLAGS) -c netbsd.c
+
 strace.o: strace.c
 	$(CC) $(strace_CFLAGS) -c strace.c
 

src/linux.c

@@ -1,5 +1,5 @@
 /* $Id$ */
-/* Copyright (c) 2007 Pierre Pronchery <khorben@defora.org> */
+/* Copyright (c) 2009 Pierre Pronchery <khorben@defora.org> */
 /* This file is part of DeforaOS Devel strace */
 /* strace is not free software; you can redistribute it and/or modify it under
  * the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0
@@ -20,7 +20,9 @@
 #include "linux.h"
 
 
-char const * _syscall[] =
+#ifdef __linux__
+/* variables */
+char const * stracecall[] =
 {
 	"exit",
 	"fork",
@@ -43,3 +45,4 @@ char const * _syscall[] =
 	"lseek",
 	"getpid"
 };
+#endif /* __linux__ */

src/linux.h

@@ -1,5 +1,5 @@
 /* $Id$ */
-/* Copyright (c) 2007 Pierre Pronchery <khorben@defora.org> */
+/* Copyright (c) 2009 Pierre Pronchery <khorben@defora.org> */
 /* This file is part of DeforaOS Devel strace */
 /* strace is not free software; you can redistribute it and/or modify it under
  * the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0
@@ -19,10 +19,17 @@
 #ifndef STRACE_LINUX_H
 # define STRACE_LINUX_H
 
-# include <linux/user.h>
+# ifdef __linux__
-# include <asm/unistd.h>
+#  include <linux/user.h>
+#  include <asm/unistd.h>
 
 
-extern char * syscall[__NR_getpid];
+/* types */
+typedef void * ptrace_data_t;
+
+
+/* variables */
+extern char * stracecall[__NR_getpid];
+# endif /* __linux__ */
 
 #endif /* !STRACE_LINUX_H */

src/netbsd.c

@@ -0,0 +1,49 @@
+/* $Id$ */
+/* Copyright (c) 2009 Pierre Pronchery <khorben@defora.org> */
+/* This file is part of DeforaOS Devel strace */
+/* strace is not free software; you can redistribute it and/or modify it under
+ * the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0
+ * Unported as published by the Creative Commons organization.
+ *
+ * strace 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 Creative Commons Attribution-NonCommercial-
+ * ShareAlike 3.0 Unported license for more details.
+ *
+ * You should have received a copy of the Creative Commons Attribution-
+ * NonCommercial-ShareAlike 3.0 along with strace; if not, browse to
+ * http://creativecommons.org/licenses/by-nc-sa/3.0/ */
+
+
+
+#include <stdlib.h>
+#include "netbsd.h"
+
+
+#ifdef __NetBSD__
+/* variables */
+char const * stracecall[] =
+{
+	NULL,
+	"exit",
+	"fork",
+	"read",
+	"write",
+	"open",
+	"close",
+	"wait4",
+	"oldcreat",
+	"link",
+	"unlink",
+	"oldexecv",
+	"chdir",
+	"fchdir",
+	"mknod",
+	"chmod",
+	"chown",
+	"break",
+	NULL,
+	"oldlseek",
+	"getpid"
+};
+#endif /* __NetBSD__ */

src/netbsd.h

@@ -0,0 +1,53 @@
+/* $Id$ */
+/* Copyright (c) 2009 Pierre Pronchery <khorben@defora.org> */
+/* This file is part of DeforaOS Devel strace */
+/* strace is not free software; you can redistribute it and/or modify it under
+ * the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0
+ * Unported as published by the Creative Commons organization.
+ *
+ * strace 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 Creative Commons Attribution-NonCommercial-
+ * ShareAlike 3.0 Unported license for more details.
+ *
+ * You should have received a copy of the Creative Commons Attribution-
+ * NonCommercial-ShareAlike 3.0 along with strace; if not, browse to
+ * http://creativecommons.org/licenses/by-nc-sa/3.0/ */
+
+
+
+#ifndef STRACE_NETBSD_H
+# define STRACE_NETBSD_H
+
+# ifdef __NetBSD__
+#  include <sys/syscall.h>
+#  include <machine/reg.h>
+
+
+/* types */
+typedef long ptrace_data_t; /* XXX really is int */
+struct user
+{
+	struct reg regs;
+};
+
+
+/* constants */
+#  define PTRACE_CONT		PT_CONTINUE
+#  define PTRACE_GETREGS	PT_GETREGS
+#  define PTRACE_SYSCALL	PT_SYSCALL
+#  define PTRACE_TRACEME	PT_TRACE_ME
+
+#  if defined(__amd64__)
+#   define _REG32_EAX		11 /* XXX or #define _KERNEL */
+#   define orig_eax		regs[_REG32_EAX]
+#  elif defined(__i386__)
+#   define orig_eax		r_eax
+#  endif
+
+
+/* variables */
+extern char const * stracecall[SYS_getpid + 1];
+# endif /* __NetBSD__ */
+
+#endif /* !STRACE_NETBSD_H */

src/project.conf

@@ -5,5 +5,11 @@ dist=Makefile
 
 [strace]
 type=binary
-sources=linux.c,strace.c
+sources=linux.c,netbsd.c,strace.c
 install=$(BINDIR)
+
+[linux.c]
+depends=linux.h
+
+[netbsd.c]
+depends=netbsd.h

src/strace.c

@@ -1,5 +1,5 @@
 /* $Id$ */
-/* Copyright (c) 2007 Pierre Pronchery <khorben@defora.org> */
+/* Copyright (c) 2009 Pierre Pronchery <khorben@defora.org> */
 /* This file is part of DeforaOS Devel strace */
 /* strace is not free software; you can redistribute it and/or modify it under
  * the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0
@@ -17,17 +17,18 @@
 
 
 #include <sys/types.h>
-#include <unistd.h>
 #include <sys/wait.h>
 #include <sys/ptrace.h>
+#include <unistd.h>
 #include <stdio.h>
-#ifdef __linux__
+#include <signal.h>
-# include "linux.h"
+#include "linux.h"
-#endif
+#include "netbsd.h"
 
 
 /* strace */
 static int _strace_parent(pid_t pid);
+
 static int _strace(char * argv[])
 {
 	pid_t pid;
@@ -39,7 +40,7 @@ static int _strace(char * argv[])
 	}
 	if(pid == 0)
 	{
-		ptrace(PTRACE_TRACEME);
+		ptrace(PTRACE_TRACEME, -1, NULL, (ptrace_data_t)NULL);
 		execvp(argv[0], argv);
 		fprintf(stderr, "%s", "strace: ");
 		perror(argv[0]);
@@ -64,22 +65,23 @@ static int _strace_parent(pid_t pid)
 static int _handle(pid_t pid, int status)
 {
 	struct user context;
-	int size = sizeof(_syscall) / 4;
+	int size = sizeof(stracecall) / 4;
 
 	if(!WIFSTOPPED(status))
 		return -1;
 	switch(WSTOPSIG(status))
 	{
 		case SIGTRAP:
-			ptrace(PTRACE_GETREGS, pid, NULL, &context);
+			ptrace(PTRACE_GETREGS, pid, NULL,
+					(ptrace_data_t)&context);
 			if(size >= context.regs.orig_eax)
-				fprintf(stderr, "%s();\n",
+				fprintf(stderr, "%s();\n", stracecall[
-						_syscall[context.regs.orig_eax - 1]);
+						context.regs.orig_eax - 1]);
 			else
 				fprintf(stderr, "%ld\n", context.regs.orig_eax);
-			ptrace(PTRACE_SYSCALL, pid, NULL, NULL);
+			ptrace(PTRACE_SYSCALL, pid, NULL, (ptrace_data_t)NULL);
 			wait(0);
-			ptrace(PTRACE_SYSCALL, pid, NULL, NULL);
+			ptrace(PTRACE_SYSCALL, pid, NULL, (ptrace_data_t)NULL);
 			break;
 		default:
 			ptrace(PTRACE_CONT, pid, NULL, WSTOPSIG(status));
@@ -92,7 +94,7 @@ static int _handle(pid_t pid, int status)
 /* usage */
 static int _usage(void)
 {
-	fprintf(stderr, "%s", "Usage: strace program [argument...]\n");
+	fputs("Usage: strace program [argument...]\n", stderr);
 	return 1;
 }