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#
# COPYRIGHT (c) 2012 Chris Johns <chrisj@rtems.org>
#
# The license and distribution terms for this file may be
# found in the file LICENSE in this distribution or at
# http://www.rtems.com/license/LICENSE.
#
# Covert the list of symbols into a C structure.
#
#
function c_header()
{
print ("/*");
print (" * RTEMS Global Symbol Table");
print (" * Automatically generated. Do not edit, just regenerate.");
print (" */");
print ("");
print ("extern unsigned char __rtems_rtl_base_globals[];");
print ("extern unsigned int __rtems_rtl_base_globals_size;");
print ("");
print ("asm(\" .align 4\");");
print ("asm(\"__rtems_rtl_base_globals:\");");
}
function c_trailer()
{
print ("asm(\" .byte 0\");");
print ("asm(\" .align 0\");");
print ("asm(\" .ascii \\\"\\xde\\xad\\xbe\\xef\\\"\");");
print ("asm(\" .align 4\");");
print ("asm(\"__rtems_rtl_base_globals_size:\");");
print ("asm(\" .long __rtems_rtl_base_globals_size - __rtems_rtl_base_globals\");");
print ("");
print ("void rtems_rtl_base_sym_global_add (const unsigned char* , unsigned int );");
}
function c_rtl_call_body()
{
print ("{");
print (" rtems_rtl_base_sym_global_add (__rtems_rtl_base_globals,");
print (" __rtems_rtl_base_globals_size);");
print ("}");
}
function c_constructor_trailer()
{
c_trailer();
print ("static void init(void) __attribute__ ((constructor));");
print ("static void init(void)");
c_rtl_call_body();
}
function c_embedded_trailer()
{
c_trailer();
print ("void rtems_rtl_base_global_syms_init(void);");
print ("void rtems_rtl_base_global_syms_init(void)");
c_rtl_call_body();
}
BEGIN {
FS = "[ \t\n]";
OFS = " ";
started = 0
embed = 0
for (a = 0; a < ARGC; ++a)
{
if (ARGV[a] == "--embed")
{
embed = 1
delete ARGV[a];
}
else if (ARGV[a] != "-" && ARGV[a] != "awk")
{
print ("invalid option:", ARGV[a]);
exit 2
}
}
c_header();
syms = 0
started = 1
}
END {
if (started)
{
for (s = 0; s < syms; ++s)
{
printf ("asm(\" .asciz \\\"%s\\\"\");\n", symbols[s]);
if (embed)
{
printf ("asm(\" .align 0\");\n");
printf ("asm(\" .long %s\");\n", symbols[s]);
}
else
printf ("asm(\" .long 0x%s\");\n", addresses[s]);
}
if (embed)
c_embedded_trailer();
else
c_constructor_trailer();
}
}
#
# Parse the output of 'nm'
#
{
#
# We need 3 fields
#
if (NF == 3)
{
if (($3 != "__DTOR_END__") ||
($3 != "__CTOR_END__") ||
($3 != "__DYNAMIC"))
{
symbols[syms] = $3;
addresses[syms] = $1;
++syms;
}
}
}
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