Sweden-Number/tools/winebuild/utils.c

487 lines
12 KiB
C

/*
* Small utility functions for winebuild
*
* Copyright 2000 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "build.h"
void *xmalloc (size_t size)
{
void *res;
res = malloc (size ? size : 1);
if (res == NULL)
{
fprintf (stderr, "Virtual memory exhausted.\n");
exit (1);
}
return res;
}
void *xrealloc (void *ptr, size_t size)
{
void *res = realloc (ptr, size);
if (size && res == NULL)
{
fprintf (stderr, "Virtual memory exhausted.\n");
exit (1);
}
return res;
}
char *xstrdup( const char *str )
{
char *res = strdup( str );
if (!res)
{
fprintf (stderr, "Virtual memory exhausted.\n");
exit (1);
}
return res;
}
char *strupper(char *s)
{
char *p;
for (p = s; *p; p++) *p = toupper(*p);
return s;
}
int strendswith(const char* str, const char* end)
{
int l = strlen(str);
int m = strlen(end);
return l >= m && strcmp(str + l - m, end) == 0;
}
void fatal_error( const char *msg, ... )
{
va_list valist;
va_start( valist, msg );
if (input_file_name)
{
fprintf( stderr, "%s:", input_file_name );
if (current_line)
fprintf( stderr, "%d:", current_line );
fputc( ' ', stderr );
}
else fprintf( stderr, "winebuild: " );
vfprintf( stderr, msg, valist );
va_end( valist );
exit(1);
}
void fatal_perror( const char *msg, ... )
{
va_list valist;
va_start( valist, msg );
if (input_file_name)
{
fprintf( stderr, "%s:", input_file_name );
if (current_line)
fprintf( stderr, "%d:", current_line );
fputc( ' ', stderr );
}
vfprintf( stderr, msg, valist );
perror( " " );
va_end( valist );
exit(1);
}
void error( const char *msg, ... )
{
va_list valist;
va_start( valist, msg );
if (input_file_name)
{
fprintf( stderr, "%s:", input_file_name );
if (current_line)
fprintf( stderr, "%d:", current_line );
fputc( ' ', stderr );
}
vfprintf( stderr, msg, valist );
va_end( valist );
nb_errors++;
}
void warning( const char *msg, ... )
{
va_list valist;
if (!display_warnings) return;
va_start( valist, msg );
if (input_file_name)
{
fprintf( stderr, "%s:", input_file_name );
if (current_line)
fprintf( stderr, "%d:", current_line );
fputc( ' ', stderr );
}
fprintf( stderr, "warning: " );
vfprintf( stderr, msg, valist );
va_end( valist );
}
/* output a standard header for generated files */
void output_standard_file_header( FILE *outfile )
{
if (spec_file_name)
fprintf( outfile, "/* File generated automatically from %s; do not edit! */\n",
spec_file_name );
else
fprintf( outfile, "/* File generated automatically; do not edit! */\n" );
fprintf( outfile,
"/* This file can be copied, modified and distributed without restriction. */\n\n" );
}
/* dump a byte stream into the assembly code */
void dump_bytes( FILE *outfile, const unsigned char *data, int len,
const char *label, int constant )
{
int i;
fprintf( outfile, "\nstatic %sunsigned char %s[%d] = {",
constant ? "const " : "", label, len );
for (i = 0; i < len; i++)
{
if (!(i & 7)) fprintf( outfile, "\n " );
fprintf( outfile, "0x%02x", *data++ );
if (i < len - 1) fprintf( outfile, "," );
}
fprintf( outfile, "\n};\n" );
}
/*******************************************************************
* open_input_file
*
* Open a file in the given srcdir and set the input_file_name global variable.
*/
FILE *open_input_file( const char *srcdir, const char *name )
{
char *fullname;
FILE *file = fopen( name, "r" );
if (!file && srcdir)
{
fullname = xmalloc( strlen(srcdir) + strlen(name) + 2 );
strcpy( fullname, srcdir );
strcat( fullname, "/" );
strcat( fullname, name );
file = fopen( fullname, "r" );
}
else fullname = xstrdup( name );
if (!file) fatal_error( "Cannot open file '%s'\n", fullname );
input_file_name = fullname;
current_line = 1;
return file;
}
/*******************************************************************
* close_input_file
*
* Close the current input file (must have been opened with open_input_file).
*/
void close_input_file( FILE *file )
{
fclose( file );
free( input_file_name );
input_file_name = NULL;
current_line = 0;
}
/*******************************************************************
* remove_stdcall_decoration
*
* Remove a possible @xx suffix from a function name.
* Return the numerical value of the suffix, or -1 if none.
*/
int remove_stdcall_decoration( char *name )
{
char *p, *end = strrchr( name, '@' );
if (!end || !end[1] || end == name) return -1;
/* make sure all the rest is digits */
for (p = end + 1; *p; p++) if (!isdigit(*p)) return -1;
*end = 0;
return atoi( end + 1 );
}
/*******************************************************************
* alloc_dll_spec
*
* Create a new dll spec file descriptor
*/
DLLSPEC *alloc_dll_spec(void)
{
DLLSPEC *spec;
spec = xmalloc( sizeof(*spec) );
spec->file_name = NULL;
spec->dll_name = NULL;
spec->init_func = NULL;
spec->type = SPEC_WIN32;
spec->base = MAX_ORDINALS;
spec->limit = 0;
spec->stack_size = 0;
spec->heap_size = 0;
spec->nb_entry_points = 0;
spec->alloc_entry_points = 0;
spec->nb_names = 0;
spec->nb_resources = 0;
spec->characteristics = 0;
spec->subsystem = 0;
spec->subsystem_major = 4;
spec->subsystem_minor = 0;
spec->entry_points = NULL;
spec->names = NULL;
spec->ordinals = NULL;
spec->resources = NULL;
return spec;
}
/*******************************************************************
* free_dll_spec
*
* Free dll spec file descriptor
*/
void free_dll_spec( DLLSPEC *spec )
{
int i;
for (i = 0; i < spec->nb_entry_points; i++)
{
ORDDEF *odp = &spec->entry_points[i];
free( odp->name );
free( odp->export_name );
free( odp->link_name );
}
free( spec->file_name );
free( spec->dll_name );
free( spec->init_func );
free( spec->entry_points );
free( spec->names );
free( spec->ordinals );
free( spec->resources );
free( spec );
}
/*******************************************************************
* make_c_identifier
*
* Map a string to a valid C identifier.
*/
const char *make_c_identifier( const char *str )
{
static char buffer[256];
char *p;
for (p = buffer; *str && p < buffer+sizeof(buffer)-1; p++, str++)
{
if (isalnum(*str)) *p = *str;
else *p = '_';
}
*p = 0;
return buffer;
}
/*****************************************************************
* Function: get_alignment
*
* Description:
* According to the info page for gas, the .align directive behaves
* differently on different systems. On some architectures, the
* argument of a .align directive is the number of bytes to pad to, so
* to align on an 8-byte boundary you'd say
* .align 8
* On other systems, the argument is "the number of low-order zero bits
* that the location counter must have after advancement." So to
* align on an 8-byte boundary you'd say
* .align 3
*
* The reason gas is written this way is that it's trying to mimick
* native assemblers for the various architectures it runs on. gas
* provides other directives that work consistantly across
* architectures, but of course we want to work on all arches with or
* without gas. Hence this function.
*
*
* Parameters:
* align -- the number of bytes to align to. Must be a power of 2.
*/
unsigned int get_alignment(unsigned int align)
{
unsigned int n;
assert( !(align & (align - 1)) );
switch(target_cpu)
{
case CPU_x86:
case CPU_x86_64:
case CPU_SPARC:
if (target_platform != PLATFORM_APPLE) return align;
/* fall through */
case CPU_POWERPC:
case CPU_ALPHA:
n = 0;
while ((1 << n) != align) n++;
return n;
}
/* unreached */
assert(0);
return 0;
}
/* return the page size for the target CPU */
unsigned int get_page_size(void)
{
switch(target_cpu)
{
case CPU_x86: return 4096;
case CPU_x86_64: return 4096;
case CPU_POWERPC: return 4096;
case CPU_SPARC: return 8192;
case CPU_ALPHA: return 8192;
}
/* unreached */
assert(0);
return 0;
}
/* return the size of a pointer on the target CPU */
unsigned int get_ptr_size(void)
{
switch(target_cpu)
{
case CPU_x86:
case CPU_POWERPC:
case CPU_SPARC:
case CPU_ALPHA:
return 4;
case CPU_x86_64:
return 8;
}
/* unreached */
assert(0);
return 0;
}
/* return the assembly name for a C symbol */
const char *asm_name( const char *sym )
{
static char buffer[256];
switch (target_platform)
{
case PLATFORM_APPLE:
case PLATFORM_WINDOWS:
buffer[0] = '_';
strcpy( buffer + 1, sym );
return buffer;
default:
return sym;
}
}
/* return an assembly function declaration for a C function name */
const char *func_declaration( const char *func )
{
static char buffer[256];
switch (target_platform)
{
case PLATFORM_APPLE:
return "";
case PLATFORM_WINDOWS:
sprintf( buffer, ".def _%s; .scl 2; .type 32; .endef", func );
break;
case PLATFORM_SVR4:
sprintf( buffer, ".type %s,2", func );
break;
default:
sprintf( buffer, ".type %s,@function", func );
break;
}
return buffer;
}
/* return a size declaration for an assembly function */
const char *func_size( const char *func )
{
static char buffer[256];
switch (target_platform)
{
case PLATFORM_APPLE:
case PLATFORM_WINDOWS:
return "";
default:
sprintf( buffer, ".size %s, .-%s", func, func );
return buffer;
}
}
const char *get_asm_ptr_keyword(void)
{
switch(get_ptr_size())
{
case 4: return ".long";
case 8: return ".quad";
}
assert(0);
return NULL;
}
const char *get_asm_string_keyword(void)
{
switch (target_platform)
{
case PLATFORM_APPLE:
case PLATFORM_SVR4:
return ".asciz";
default:
return ".string";
}
}
const char *get_asm_short_keyword(void)
{
switch (target_platform)
{
case PLATFORM_SVR4: return ".half";
default: return ".short";
}
}