Function keeps getting embedded into object!

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pcmattman
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Post by pcmattman »

I downloaded bison and tried again. No luck.
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Post by Brynet-Inc »

Well make sure you install it properly, Using whatever package management Cygwin provides.

You could also try installing byacc? That might be required..

Also post your configure commands...
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Post by pcmattman »

Configure log (config.log):

Code: Select all

This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

configure:614: checking host system type
configure:635: checking target system type
configure:653: checking build system type
configure:708: checking for a BSD compatible install
configure:761: checking whether ln works
configure:785: checking whether ln -s works
configure:1856: checking for gcc
configure:1969: checking whether the C compiler (gcc  ) works
configure:1985: gcc -o conftest    conftest.c  1>&5
configure:2011: checking whether the C compiler (gcc  ) is a cross-compiler
configure:2016: checking whether we are using GNU C
configure:2044: checking whether gcc accepts -g
configure:2111: checking for gnatbind
configure:2176: checking whether compiler driver understands Ada
configure:2208: checking how to compare bootstrapped objects
configure:2306: checking for correct version of gmp.h
configure:2319: gcc -c -g -O2   conftest.c 1>&5
configure:2309:17: gmp.h: No such file or directory
configure: In function `main':
configure:2313: error: `choke' undeclared (first use in this function)
configure:2313: error: (Each undeclared identifier is reported only once
configure:2313: error: for each function it appears in.)
configure:2313: error: parse error before "me"
configure: failed program was:
#line 2308 "configure"
#include "confdefs.h"
#include "gmp.h"
int main() {

#if __GNU_MP_VERSION < 3
choke me
#endif

; return 0; }
configure:3451: checking for bison
configure:3491: checking for bison
configure:3530: checking for gm4
configure:3569: checking for flex
configure:3609: checking for flex
configure:3648: checking for makeinfo
configure:3701: checking for expect
configure:3742: checking for runtest
configure:3790: checking for i686-pc-cygwin-ar
configure:3865: checking for i686-pc-cygwin-as
configure:3940: checking for i686-pc-cygwin-dlltool
configure:4015: checking for i686-pc-cygwin-ld
configure:4090: checking for i686-pc-cygwin-lipo
configure:4121: checking for lipo
configure:4165: checking for i686-pc-cygwin-nm
configure:4240: checking for i686-pc-cygwin-ranlib
configure:4310: checking for i686-pc-cygwin-strip
configure:4380: checking for i686-pc-cygwin-windres
configure:4455: checking for i686-pc-cygwin-objcopy
configure:4530: checking for i686-pc-cygwin-objdump
configure:4642: checking for i586-elf-cc
configure:4642: checking for i586-elf-gcc
configure:4733: checking for i586-elf-c++
configure:4733: checking for i586-elf-g++
configure:4733: checking for i586-elf-cxx
configure:4733: checking for i586-elf-gxx
configure:4824: checking for i586-elf-gcc
configure:4910: checking for i586-elf-gcj
configure:5001: checking for i586-elf-gfortran
configure:5157: checking for ar
configure:5211: checking for i586-elf-ar
configure:5310: checking for as
configure:5364: checking for i586-elf-as
configure:5463: checking for dlltool
configure:5517: checking for i586-elf-dlltool
configure:5616: checking for ld
configure:5670: checking for i586-elf-ld
configure:5769: checking for lipo
configure:5823: checking for i586-elf-lipo
configure:5922: checking for nm
configure:5976: checking for i586-elf-nm
configure:6075: checking for objdump
configure:6129: checking for i586-elf-objdump
configure:6228: checking for ranlib
configure:6282: checking for i586-elf-ranlib
configure:6381: checking for strip
configure:6435: checking for i586-elf-strip
configure:6534: checking for windres
configure:6588: checking for i586-elf-windres
configure:6667: checking where to find the target ar
configure:6700: checking where to find the target as
configure:6733: checking where to find the target cc
configure:6766: checking where to find the target c++
configure:6802: checking where to find the target c++ for libstdc++
configure:6838: checking where to find the target dlltool
configure:6871: checking where to find the target gcc
configure:6904: checking where to find the target gcj
configure:6940: checking where to find the target gfortran
configure:6976: checking where to find the target ld
configure:7009: checking where to find the target lipo
configure:7032: checking where to find the target nm
configure:7065: checking where to find the target objdump
configure:7098: checking where to find the target ranlib
configure:7131: checking where to find the target strip
configure:7164: checking where to find the target windres
configure:7225: checking whether to enable maintainer-specific portions of Makefiles
configure:7274: checking whether -fkeep-inline-functions is supported
configure:7283: gcc -c -g -O2 -fkeep-inline-functions  conftest.c 1>&5
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Post by Brynet-Inc »

Well, I was kinda asking for the "configure commands used"..

I'm not sure about the GNU MP library(http://gmplib.org/ ?)..

But maybe you're trying to use an outdated binutils with a newer version GCC?

Just install bison and byacc, Try again.. post the "complete" configure arguments here..
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Post by pcmattman »

Oops. I have GMP. bison, byacc installed.

Complete configure command line:

Code: Select all

../binutils-20060817-1/configure --prefix=$PREFIX --target=$TARGET --disable-nls
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Post by Brynet-Inc »

pcmattman wrote:Oops. I have GMP. bison, byacc installed.

Complete configure command line:

Code: Select all

../binutils-20060817-1/configure --prefix=$PREFIX --target=$TARGET --disable-nls
(EDIT: You might need the flex command.. Try getting that package..)

Why don't you try compiling binutils 2.17? And then get the latest GCC (Or 3x etc..) from their "official" locations.

Good luck..:roll:

(Why not build a cross-compiler in MinGW? A quick "googling" seems to show a few tutorials..)

**After searching OSDev there is something about having to set Cygwin to treat all files as binary? Think it's something asked during installation?
http://www.osdev.org/phpBB2/viewtopic.php?p=95615#95615
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Post by pcmattman »

I already have flex.

All files are treated as binary :?

I have the worst luck... Can't get a cross-compiler to build, can't get virtual mode to work (everyone else can :cry: ), have all sorts of other problems.

Maybe I should just go back to Windows programming. At least it always works the way I expect it to.
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Post by Brynet-Inc »

pcmattman wrote:I already have flex.

All files are treated as binary :?

I have the worst luck... Can't get a cross-compiler to build, can't get virtual mode to work (everyone else can :cry: ), have all sorts of other problems.

Maybe I should just go back to Windows programming. At least it always works the way I expect it to.
You could always try using a better development OS.. loll.. :wink:
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Post by Solar »

pcmattman wrote:Complete configure command line:

Code: Select all

../binutils-20060817-1/configure --prefix=$PREFIX --target=$TARGET --disable-nls
Under Step 1, Bootstrap:

"We need the binutils and the GCC packages from http://ftp.gnu.org/gnu/.

What you are trying to do is to compile the Cygwin source package.
Every good solution is obvious once you've found it.
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Post by pcmattman »

Aha! I assumed that they were the same thing!

Right. Now I feel like an idiot.
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Post by pcmattman »

News: OK, I have now gotten my cross-compiler to work without any problems. This error still appears though!

Code: Select all

devman.cc:(.gnu.linkonce.t._ZN11CLinkedListI6DeviceE3GetEi+0x6d): undefined refe
rence to `memcpy'
The problem is here:

Code: Select all

// device structure
struct Device {

	//------- Device Details -------//
	char name[64];	/** used in 'open' calls **/
	int VendorID;	/** makes printing information easier **/
	int DeviceID;	/** see above **/
	int osid;		/** the operating system's ID for the device **/
	
	//------- Functions -------//
	int (*ioctl_int)(int,int,int);
	int (*ioctl_ptr)(int,int,void*);
	int (*read)(int,void*,uint_t);
	int (*write)(int,void*,uint_t);
	int (*lseek)(int,uint_t,int);
};

// global linked list of all devices
CLinkedList<struct Device> DeviceList;

/*** ... code ... **/

// returns a new file descriptor for the device
int open( const char* pathname, int flags )
{
	// find in the list
	for( int i = 0; i < DeviceList.Size(); i++ )
	{
		// compare
		if( strcmp( const_cast< char* >( pathname ), DeviceList.Get(i).name, strlen( DeviceList.Get(i).name ) ) )
		{
			// return the descriptor
			return i;
		}
	}
	
	// none found
	return INVALID_DEV;
}
Any ideas? It appears it only occurs on large structures... I'm stuck, to say the least. And I do have a memcpy, but when I make it ' extern "C" ' I get all sorts of link errors (same as above :?)

Edit: OK, I tried this in my header file:

Code: Select all

extern "C" void *memcpy( void *dest, const void *src, int n );
And this for my memcpy:

Code: Select all

static inline void *memcpy( void *dest, const void *src, int n ) {
	char *dst=(char*)dest,*source=(char*)src;
	for( ; n ; n-- )
		*dst++ = *source++;
	return dest;
}
Cleaned the directory, rebuilt from scratch, didn't work:

Code: Select all

Linking
./console/console.o: In function `Console::Output(char const*)':
console.cc:(.text+0x1d3): undefined reference to `memcpy'
./devman/devman.o: In function `CLinkedList<Device>::Get(int)':
devman.cc:(.gnu.linkonce.t._ZN11CLinkedListI6DeviceE3GetEi+0x6d): undefined refe
rence to `memcpy'
devman.cc:(.gnu.linkonce.t._ZN11CLinkedListI6DeviceE3GetEi+0x8a): undefined refe
rence to `memcpy'
./fs/fat32.o: In function `PadFilename(unsigned char*)':
fat32.cc:(.text+0x10ce): undefined reference to `memcpy'
./winman/winman.o: In function `CreateWindow(unsigned int, char const*, unsigned
 int, unsigned int, unsigned int, unsigned int, bool (*)(unsigned int, unsigned
int, unsigned int, unsigned int))':
winman.cc:(.text+0x399): undefined reference to `memcpy'
make: *** [kernel.bin] Error 1
Everything compiles, but doesn't link. Weird... objdump outputs:

Code: Select all

syscore/mem.o:     file format elf32-i386
syscore/mem.o
architecture: i386, flags 0x00000011:
HAS_RELOC, HAS_SYMS
start address 0x00000000

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         000000f7  00000000  00000000  00000034  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
  1 .data         00000000  00000000  00000000  0000012c  2**2
                  CONTENTS, ALLOC, LOAD, DATA
  2 .bss          00000004  00000000  00000000  0000012c  2**2
                  ALLOC
  3 .comment      00000012  00000000  00000000  0000012c  2**0
                  CONTENTS, READONLY
SYMBOL TABLE:
00000000 l    df *ABS*  00000000 mem.cc
00000000 l    d  .text  00000000 .text
00000000 l    d  .data  00000000 .data
00000000 l    d  .bss   00000000 .bss
00000034 l     F .text  0000003b _Z6memcpyPvPKvi
00000000 l    d  .comment       00000000 .comment
00000000 g     F .text  00000033 _Z6memsetPvhi
00000070 g     F .text  0000000d _Z3brkj
00000000 g     O .bss   00000004 HeapTop
0000007e g     F .text  00000020 _Z4sbrkj
0000009e g     F .text  00000010 _Z6mallocj
000000ae g     F .text  00000027 _Z7reallocPvjj
000000d6 g     F .text  0000001b _Z11init_memmanP14multiboot_info
00000000         *UND*  00000000 end
000000f2 g     F .text  00000005 _Z4freePv


RELOCATION RECORDS FOR [.text]:
OFFSET   TYPE              VALUE
00000077 R_386_32          HeapTop
00000085 R_386_32          HeapTop
0000008d R_386_32          HeapTop
00000095 R_386_32          HeapTop
000000a5 R_386_PC32        _Z4sbrkj
000000b8 R_386_PC32        _Z4sbrkj
000000dd R_386_32          end
000000e8 R_386_PC32        _Z3brkj
Something is not right, maybe be I forgot to make sure that memcpy is definitely extern "C" in both the header and the implementation?

Edit 2: why am I not surprised? Stupid mistakes... It works now :roll:
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