From 84adefa331c4159d432d22840663c38f155cd4c1 Mon Sep 17 00:00:00 2001
From: Erlang/OTP <otp@erlang.org>
Date: Fri, 20 Nov 2009 14:54:40 +0000
Subject: The R13B03 release.

---
 erts/etc/vxworks/vxcall.c | 145 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 erts/etc/vxworks/vxcall.c

(limited to 'erts/etc/vxworks/vxcall.c')

diff --git a/erts/etc/vxworks/vxcall.c b/erts/etc/vxworks/vxcall.c
new file mode 100644
index 0000000000..3362d05fc5
--- /dev/null
+++ b/erts/etc/vxworks/vxcall.c
@@ -0,0 +1,145 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 1997-2009. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include <vxWorks.h>
+#include <symLib.h>
+#include <sysSymTbl.h>
+#include <a_out.h>
+
+extern char *malloc();
+static STATUS lookup();
+
+/*
+   Little utility to convert from Unix' argv,argv calling conventions to
+   VxWorks' arg0,arg1,arg2,...
+   Will do limited argument parsing - no parenthesis around nor commas
+   between the args, which may be "-enclosed strings (without \ escapes),
+   '-enclosed characters (also no \ escapes), integers, or symbols.
+*/
+
+int vxcall(argc, argv)
+int argc;
+char **argv;
+{
+    int vxarg[10];		/* Max 10 args can be passed */
+    FUNCPTR entry;
+    SYM_TYPE type;
+    int i, l;
+
+#ifdef DEBUG
+    fdprintf(2, "vxcall:");
+    for (i = 1; i < argc; i++)
+	fdprintf(2, " %s", argv[i]);
+    fdprintf(2, "\n");
+#endif
+    if (lookup(argv[1], N_EXT | N_TEXT, (char **)&entry) != OK)
+	return(ERROR);
+    /* Do limited "C" parsing of the args */
+    for (i = 0; i < 10; i++) {
+	if (i < argc - 2) {
+	    switch (argv[i+2][0]) {
+	    case '"':
+		l = strlen(argv[i+2]) - 1;
+		if (argv[i+2][l] != '"')
+		    return(ERROR);
+		/* just strip the quotes - should do \escapes within... */
+		vxarg[i] = (int)&argv[i+2][1];
+		argv[i+2][l] = '\0';
+		break;
+	    case '\'':
+		if (argv[i+2][2] != '\'')
+		    return(ERROR);
+		vxarg[i] = argv[i+2][1]; /* should do \escapes... */
+		break;
+	    case '1': case '2': case '3': case '4':
+	    case '5': case '6': case '7': case '8': case '9':
+		vxarg[i] = atoi(argv[i+2]); /* should do octal, hex, float.. */
+		break;
+	    default:
+		if (lookup(argv[i+2], 0, (char **)&vxarg[i]) != OK)
+		    return(ERROR);
+	    }
+	} else
+	    vxarg[i] = 0;
+    }
+#ifdef DEBUG
+    fdprintf(2, "calling 0x%x(0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x)\n",
+	     entry, vxarg[0], vxarg[1], vxarg[2], vxarg[3], vxarg[4],
+		    vxarg[5], vxarg[6], vxarg[7], vxarg[8], vxarg[9]);
+#endif
+    return((*entry)(vxarg[0], vxarg[1], vxarg[2], vxarg[3], vxarg[4],
+		    vxarg[5], vxarg[6], vxarg[7], vxarg[8], vxarg[9]));
+}
+
+/* Entry point for unix:cmd in post-4.1 erlang - uses "sh -c 'cmd...'" */
+int sh(argc, argv)
+int argc;
+char **argv;
+{
+    int ll = strlen(argv[argc-1]) - 1;
+
+#ifdef DEBUG
+    int i;
+    fdprintf(2, "sh:");
+    for (i = 1; i < argc; i++)
+	fdprintf(2, " %s", argv[i]);
+    fdprintf(2, "\n");
+#endif
+    if (strcmp(argv[1], "-c") != 0 ||
+	argv[2][0] != '\'' || argv[argc-1][ll] != '\'')
+	return(ERROR);
+    argv[argc-1][ll] = '\0';	/* delete trailing ' */
+    argv[2]++;			/* skip leading ' (*after* the above!) */
+    return(vxcall(argc-1, argv+1));
+}
+
+/* Lookup symbol; get address for text symbols, value (assuming int)
+   otherwise; return OK or ERROR on failure
+   Symbol name is null-terminated and without the leading '_' */
+STATUS
+lookup(sym, stype, value)
+char *sym, **value;
+int stype;
+{
+    char buf[256];
+    char *symname = buf;
+    int len, ret;
+    SYM_TYPE type;
+
+    len = strlen(sym);
+    if (len > 254 && (symname = malloc(len+2)) == NULL)
+	return(ERROR);
+#if defined _ARCH_PPC || defined SIMSPARCSOLARIS
+    /* GCC for PPC or SIMSPARC doesn't add a leading _ to symbols */
+    strcpy(symname, sym);
+#else
+    sprintf(symname, "_%s", sym);
+#endif
+    ret = (stype != 0) ?
+	symFindByNameAndType(sysSymTbl, symname, value, &type, stype, stype) :
+	    symFindByName(sysSymTbl, symname, value, &type);
+    if (symname != buf)
+	free(symname);
+    if (ret == OK && (type & N_TEXT) == 0) /* get value */
+	*value = (char *)*((int *)*value);
+    return(ret);
+}
-- 
cgit v1.2.3