#!/bin/bash

. ./wvtest.sh

cat > 'correct_cmetric_config.h' <<EOF
/* Automatically generated from for_cmetric_config.o */
/* Conditionals to control compilation */
/* Defines from the values defined to symbols in hexadecimal format */
#define FLAG_BAR_b 0x01
#define FLAG_BAR_m 0x02
#define FLAG_FOO_b 0x0
#define FLAG_FOO_m 0x01
#define VALUE_HEX 0x07b
#define o_blah_field1 0x0
#define o_blah_field2 0x04
#define o_blah_flags 0x08
#define s_blah_field1 0x04
#define s_blah_field2 0x01
#define s_blah_flags 0x04
/* Defines from the values defined to symbols in decimal format */
#define VALUE_DEC 123
#define VALUE_DEC_ZERO 0
EOF
cat > 'Makefile.omk' <<EOF
# -*- makefile -*-

NM=nm

cmetric_include_HEADERS = test/cmetric_config.h
cmetric_config_CMETRIC_SOURCES = for_cmetric_config.c

bin_PROGRAMS = test
test_SOURCES = test.S
EOF
cat > 'for_cmetric_config.c' <<EOF
/* Export of offset information to assembly source code */

/* %N (for N a digit) means print operand N in usual manner.
   %lN label name with no punctuation
   %cN constant expression with no punctuation
   %aN means expect operand N to be a memory address
       (not a memory reference!) and print a reference
       to that address.
   %nN constant expression for minus the value with no other punctuation.
 */

#include "header.h"

#define NUM2ASM(sym,val) \
    __asm__ ( \
	".set " #sym ",%c0\n" \
	".global " #sym "\n" \
	::"n"(val) \
    )

#define FIELD2ASM(strct, fld)				   \
	NUM2ASM(_cmetric2def_o_##strct##_##fld,&((struct strct*)0L)->fld); \
	NUM2ASM(_cmetric2def_s_##strct##_##fld,sizeof(((struct strct*)0L)->fld))

#define MASKBIT2ASM(def_base) \
	NUM2ASM(_cmetric2def_##def_base##_b,def_base##_b); \
	NUM2ASM(_cmetric2def_##def_base##_m,def_base##_m)

#define VALUE2ASM(value_name,value) \
	NUM2ASM(_cmetric2def_##value_name,value)

#define DEC_VALUE2ASM(value_name,value) \
	NUM2ASM(_cmetric2defdec_##value_name,value)

void pxmc_public2asm(void)
{

#ifdef CONFIG_TEST_OPTION1
VALUE2ASM(CMETRIC_TEST_OPTION1,1);
#endif
#ifdef CONFIG_TEST_OPTION2
VALUE2ASM(CMETRIC_TEST_OPTION2,1);
#endif
#ifdef CONFIG_TEST_OPTION3
VALUE2ASM(CMETRIC_TEST_OPTION3,1);
#endif
#ifdef CONFIG_TEST_OPTION4
VALUE2ASM(CMETRIC_TEST_OPTION4,1);
#endif
#ifdef CONFIG_TEST_OPTION5
VALUE2ASM(CMETRIC_TEST_OPTION5,1);
#endif
#ifdef CONFIG_TEST_OPTION6
VALUE2ASM(CMETRIC_TEST_OPTION6,1);
#endif

VALUE2ASM(VALUE_HEX, 123);
DEC_VALUE2ASM(VALUE_DEC, 123);
DEC_VALUE2ASM(VALUE_DEC_ZERO, 0);

MASKBIT2ASM(FLAG_FOO);
MASKBIT2ASM(FLAG_BAR);

FIELD2ASM(blah, field1);
FIELD2ASM(blah, field2);
FIELD2ASM(blah, flags);

}
EOF
cat > 'test.S' <<EOF
#include <test/cmetric_config.h>

/*
 * In this file, we can use the symbols extracted from .o generated by
 * a C compiler
 */

.global main
main:
EOF
cat > 'header.h' <<EOF
#ifndef HEADER_H
#define HEADER_H

#define FLAG_FOO_b 0
#define FLAG_FOO_m (1<<FLAG_FOO_b)
#define FLAG_BAR_b 1
#define FLAG_BAR_m (1<<FLAG_BAR_b)

struct blah {
	int field1;
	char field2;
	int flags;
};

#endif
EOF


touch config.omk-default
needs_valid_CC

WVFAIL make NM=false FAILMSG="cmetric error was not correctly detected"
WVPASS make FAILMSG="compilation error"

eval $(make omk-get-var VAR=COMPILED_DIR_NAME|grep ^COMPILED_DIR_NAME)

WVPASS diff -u correct_cmetric_config.h $COMPILED_DIR_NAME/include/test/cmetric_config.h