Bochs GUI for LINUX

[bewing]

This app has been fully incorporated into the most recent version of bochs (anything 2.4 or higher). -- This thread is now obsolete. Please download either bochs at sourceforge, or bebochs to get an emulator with a very nice GUI frontend.

[Alboin]

I have tried compiling it. Two things:
-You have cast gpointers to ints. This fires an error that can be fixed with the GPOINTER_TO_INT macro. (Should work - gets rid of the error.)
-Some of the bx_ structures are found to be undeclared, and bx_simulator_interface_c does not seem to have debug_break. Where are these declared when compiling the file solo?

[bewing]

Which compiler are you using, to have that warning with casts? I'll take your advice and change it, certainly.

debug_break() is defined in siminterface.cc only if the BX_DEBUGGER #ifdef gets set -- did you remember to turn on --enable-debugger? All the other "not found" definitions are surrounded by that same #ifdef.

("warning: deprecated conversion from string constant to 'char*'" *phblbltltlt* to ANSI/ISO!! )

[Alboin]

Which compiler are you using, to have that warning with casts? I'll take your advice and change it, certainly

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bash-3.2$ gcc -v              
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --prefix=/usr --enable-shared --enable-languages=c,c++,fortran,objc,obj-c++,treelang --enable-threads=posix --mandir=/usr/share/man --infodir=/usr/share/info --enable-__cxa_atexit --disable-multilib --libdir=/usr/lib --libexecdir=/usr/lib --enable-clocale=gnu --disable-libstdcxx-pch --with-tune=generic
Thread model: posix
gcc version 4.3.2 (GCC)

debug_break() is defined in siminterface.cc only if the BX_DEBUGGER #ifdef gets set -- did you remember to turn on --enable-debugger?

Well, if I compile enh_dbg.cc with -DBX_DEBUGGER, I get:

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bash-3.2$ g++ -c  -I.. -I../iodev -I../instrument/stubs -O3 -Wall -Wno-format -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -I/usr/X11R6/include  enh_dbg.cc -o enh_dbg.o `pkg-config --cflags gtk+-2.0` -DBX_DEBUGGER
In file included from enh_dbg.cc:8:
../config.h:648:1: warning: "BX_DEBUGGER" redefined
<command-line>: warning: this is the location of the previous definition

So, I believe it's defined.

EDIT: Also, not to 'knit-pick', but in your instructions, under Compilation, the example line has newlines and -march. This works on my box:

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g++ -c  -I.. -I../iodev -I../instrument/stubs -O3 -Wall -Wno-format \
-D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -I/usr/X11R6/include  enh_dbg.cc -o \
enh_dbg.o `pkg-config --cflags gtk+-2.0`

[piranha]

I don't think this is an error with your stuff, but when compiling I do get

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g++ -c -I.. -I./.. -I../instrument/stubs -I./../instrument/stubs -I. -I./. -g -O2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES   symbols.cc -o symbols.o
In file included from /usr/include/c++/4.3/backward/hash_map:64,
                 from symbols.cc:86:
/usr/include/c++/4.3/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header which may be removed without further notice at a future date. Please use a non-deprecated interface with equivalent functionality instead. For a listing of replacement headers and interfaces, consult the file backward_warning.h. To disable this warning use -Wno-deprecated.
symbols.cc:143: error: ISO C++ forbids declaration of ‘hash_map’ with no type
symbols.cc:143: error: expected ‘;’ before ‘<’ token
symbols.cc:150: error: expected constructor, destructor, or type conversion before ‘<’ token
symbols.cc: In constructor ‘context_t::context_t(Bit32u)’:
symbols.cc:158: error: ‘map’ was not declared in this scope
symbols.cc: In static member function ‘static context_t* context_t::get_context(Bit32u)’:
symbols.cc:180: error: ‘map’ was not declared in this scope

-JL

[bewing]

@piranha: Yeah, that file is part of bochs -- not part of my code or modifications at all. There is a vector/header file called <hash_map.h> -- it looks to me like yours is defective, since hash_map is not being pre-defined for the compiler, and is generating an error when it is being used. I would suggest that you go into your config.h file, around line 897, and set BX_HAVE_HASH_MAP to 0. That will get rid of your error, I think, and shouldn't have any real effect on how bochs runs.
Stanislav will need to look at this too, and may have a better answer for you.

@Alboin: woops about the -march. I'll fix that. I wasn't exactly intending for people to simply cut and paste the command out of my instructions with no modification, but I suppose I'll put the backslashes in, too.
To specifically answer your question, when my code is compiled standalone, the initial definition of debug_break() comes from line 1184 of siminterface.h of the bochs code.

Could you please take a look at line 648 of your config.h and tell me what the VALUE assigned to BX_DEBUGGER is?

[Alboin]

/smacks head. I feel like an idiot. Many sorries. I must have misspelled something when I configured it all.....

Anywho......

After fixing all of the gpointer issues, I now get the same thing as piranha. (Which I am now fixing since people keep CHANGING their posts...not that there's anything wrong with that...)

EDIT: Okay. Now, I get:

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g++ -o bochs -g -O2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -DBX_SHARE_PATH=\"/usr/local/share/bochs\" logio.o main.o config.o load32bitOShack.o pc_system.o osdep.o plugin.o crc.o -Wl,--export-dynamic  iodev/libiodev.a bx_debug/libdebug.a cpu/libcpu.a memory/libmemory.a gui/libgui.a disasm/libdisasm.a fpu/libfpu.a -lSM -lICE -lX11 -lXpm -lreadline -lm
gui/libgui.a(x.o): In function `x11_notify_callback(void*, BxEvent*)':
/home/matt/Desktop/bochs-2.3.7/gui/x.cc:2574: undefined reference to `ParseIDText(char*)'
/home/matt/Desktop/bochs-2.3.7/gui/x.cc:2559: undefined reference to `HitBreak()'
gui/libgui.a(x.o): In function `bx_x_gui_c::specific_init(int, char**, unsigned int, unsigned int, unsigned int)':
/home/matt/Desktop/bochs-2.3.7/gui/x.cc:654: undefined reference to `InitDebugDialog(void*)'
collect2: ld returned 1 exit status
make: *** [bochs] Error 1

I feel so needy...Sorry.

[bewing]

/smacks head. I feel like an idiot. Many sorries. I must have misspelled something when I configured it all.....

Not a problem. I need to know the kinds of errors that people get in reality. So you smart osdevers get to be the guinea pigs, and then I will know how to solve some issues when the noobies come along.

After fixing all of the gpointer issues, I now get the same thing as piranha. (Which I am now fixing since people keep CHANGING their posts

Yeah, I'm very bad about that!

As for your current error, you forgot to include gui/enh_dbg.o in the "LIBS =" line.
Those 3 functions are the only external links from bochs into my debugger.
PLEASE let me know if you get it to compile successfully!

[Alboin]

Blah...afraid not.

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g++ -o bochs -g -O2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -DBX_SHARE_PATH=\"/usr/local/share/bochs\" logio.o main.o config.o load32bitOShack.o pc_system.o osdep.o plugin.o crc.o gui/enh_dbg.o -Wl,--export-dynamic  iodev/libiodev.a bx_debug/libdebug.a cpu/libcpu.a memory/libmemory.a gui/libgui.a disasm/libdisasm.a fpu/libfpu.a -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgio-2.0 -lpangoft2-1.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lcairo -lpango-1.0 -lfreetype -lz -lfontconfig -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -lSM -lICE -lX11 -lXpm -lreadline -lm

Gives me a bunch of undefined references to boch's functions in gui/enh_dbg.o...

-lpthread seems to be missing as well.

[bewing]

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g++ -o bochs -g -O2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -DBX_SHARE_PATH=\"/usr/local/share/bochs\" logio.o main.o config.o load32bitOShack.o pc_system.o osdep.o plugin.o crc.o gui/enh_dbg.o -Wl,--export-dynamic iodev/libiodev.a bx_debug/libdebug.a cpu/libcpu.a memory/libmemory.a gui/libgui.a disasm/libdisasm.a fpu/libfpu.a -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgio-2.0 -lpangoft2-1.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lcairo -lpango-1.0 -lfreetype -lz -lfontconfig -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -lSM -lICE -lX11 -lXpm -lreadline -lm

Gives me a bunch of undefined references to boch's functions in gui/enh_dbg.o...

-lpthread seems to be missing as well.

Yes, it is likely that you need to add -lpthread to the LIBS= line, manually.

Can you give me a few function names of the undefined references, please? I'd like to see if there is some connection (like another #ifdef) between them.

[Alboin]

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enh_dbg.cc:(.text+0x297c): undefined reference to `num_write_watchpoints'
enh_dbg.cc:(.text+0x2982): undefined reference to `num_read_watchpoints'
enh_dbg.cc:(.text+0x29a6): undefined reference to `write_watchpoint'
enh_dbg.cc:(.text+0x29c2): undefined reference to `write_watchpoint'
enh_dbg.cc:(.text+0x29ec): undefined reference to `read_watchpoint'
gui/enh_dbg.o: In function `FillAsm(unsigned long, int)':
enh_dbg.cc:(.text+0x8ac0): undefined reference to `bx_cpu_array'
enh_dbg.cc:(.text+0x8bae): undefined reference to `disassembler::disasm(unsigned int, unsigned int, unsigned long, unsigned long, unsigned char const*, char*)'
enh_dbg.cc:(.text+0x8d7b): undefined reference to `bx_cpu_array'
enh_dbg.cc:(.text+0x8d8c): undefined reference to `bx_cpu_c::dbg_xlate_linear2phy(unsigned long, unsigned int*)'
gui/enh_dbg.o: In function `FillBrkp()':
enh_dbg.cc:(.text+0x9b1e): undefined reference to `num_read_watchpoints'
enh_dbg.cc:(.text+0x9b55): undefined reference to `read_watchpoint'
enh_dbg.cc:(.text+0x9d4e): undefined reference to `num_write_watchpoints'
enh_dbg.cc:(.text+0x9d85): undefined reference to `write_watchpoint'
gui/enh_dbg.o: In function `FillPAGE()':
enh_dbg.cc:(.text+0x9ef9): undefined reference to `bx_cpu_array'
enh_dbg.cc:(.text+0x9f0c): undefined reference to `bx_cpu_c::dbg_xlate_linear2phy(unsigned long, unsigned int*)'

[bewing]

And in config.h in the main bochs dir, what are your current values for BX_DEBUGGER, BX_DISASM, and BX_SUPPORT_SMP?

(Or maybe you could just post your config.h for me?)

[Alboin]

Okay, enabling SMP seems to get rid of some of the errors.

config.h attached as requested.

[bewing]

With one small change, I just used your exact compilation statement to create a working copy of bochs. I don't see how the one small change would have made a difference -- but on my system, it will not compile until I put -L/usr/X11R6/lib in front of the -lSM argument.

What that means to me is that somehow your enh_dbg.o file (that you compiled separately) ended up not being compatible with the .o files that were created by make. Almost like they were compiled by different compilers or something.

But the basic point is that I am completely unable to duplicate your problem. Stanislav will probably be here soon, and hopefully he will have more of a clue than I do.

Your config.h looks good to me. I hope that enh_dbg.o was compiled with the same config.h as the rest of bochs.

[Brendan]

Hi,

I'm getting undefined references in "enh_dbg.cc" too...

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g++ -o bochs -g -O2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -DBX_SHARE_PATH=\"/usr/local/share/bochs\" logio.o main.o config.o load32bitOShack.o pc_system.o osdep.o plugin.o crc.o gui/enh_dbg.o -Wl,--export-dynamic  iodev/libiodev.a bx_debug/libdebug.a cpu/libcpu.a memory/libmemory.a gui/libgui.a disasm/libdisasm.a fpu/libfpu.a -L/usr/lib64 /usr/lib64/libSM.so /usr/lib64/libICE.so /usr/lib64/libXpm.so -lreadline -lpthread /usr/lib64/libgtk-x11-2.0.so /usr/lib64/libgdk-x11-2.0.so /usr/lib64/libatk-1.0.so /usr/lib64/libgdk_pixbuf-2.0.so /usr/lib64/libpangocairo-1.0.so /usr/lib64/libpangoft2-1.0.so /usr/lib64/libpango-1.0.so /usr/lib64/libcairo.so /usr/lib64/libfontconfig.so /usr/lib64/libfreetype.so /usr/lib64/libexpat.so /usr/lib64/libpng12.so -lz /usr/lib64/libXrender.so /usr/lib64/libX11.so /usr/lib64/libXau.so /usr/lib64/libXdmcp.so /usr/lib64/libpixman-1.so -lm /usr/lib64/libgobject-2.0.so /usr/lib64/libgmodule-2.0.so -ldl /usr/lib64/libglib-2.0.so -Wl,--rpath -Wl,/usr/lib64 -Wl,--rpath -Wl,/usr/lib64
gui/enh_dbg.o: In function `Close_cb(_GtkWidget*, void*)':
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg_os_specific.h:1341: undefined reference to `debug_cmd_ready'
gui/enh_dbg.o: In function `VGAWrefreshTick':
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg_os_specific.h:1621: undefined reference to `vgaw_refresh'
gui/enh_dbg.o: In function `doStepN()':
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2364: undefined reference to `debug_cmd_ready'
gui/enh_dbg.o: In function `ActivateMenuItem(int)':
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2928: undefined reference to `debug_cmd_ready'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2932: undefined reference to `debug_cmd'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2933: undefined reference to `debug_cmd'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2934: undefined reference to `debug_cmd_ready'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2941: undefined reference to `debug_cmd_ready'
gui/enh_dbg.o: In function `HotKey(int, int, int, int)':
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2772: undefined reference to `debug_cmd_ready'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2776: undefined reference to `debug_cmd'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2833: undefined reference to `debug_cmd_ready'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2835: undefined reference to `debug_cmd'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2836: undefined reference to `debug_cmd'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2837: undefined reference to `debug_cmd_ready'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2844: undefined reference to `debug_cmd_ready'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2883: undefined reference to `debug_cmd_ready'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2904: undefined reference to `debug_cmd'
/home/bcos/Desktop/bochage/bochs-20081201/gui/enh_dbg.cc:2905: undefined reference to `debug_cmd_ready'
collect2: ld returned 1 exit status
make: *** [bochs] Error 1

I started with the CVS Snapshot (from Mon Dec 1 19:20:45 UTC 2008), and did "./configure --enable-debugger --enable-disasm --with-x --enable-smp". Then I fixed all the errors related to type casts using "GPOINTER_TO_INT", and changed line 50 of "wenhdbg_h.h" to "#include "../iodev/iodev.h"" because it complained about not being able to find "iodev.h".

I compiled enh_dbg.cc with "g++ -c -I.. -I./.. -I../instrument/stubs -I./../instrument/stubs -I. -I./. -I./stubs -I././stubs -g -O2 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES enh_dbg.cc -o enh_dbg.o `pkg-config --cflags gtk+-2.0`". Then I tried a "make bochs" and got the undefined references above...


Cheers,

Brendan