Re: AWS issue

Debugger for ada is not installed, so I can run the debugger, but the only answer I get is exit code 01.

About addr2line, here is what I got:
$ addr2line -e hello_world 0x28188ac9 0x2818a535 0x2819196a 0x28183cac 0x2819bd94 0x2819e324 0x804d184 0x804d022 0x804c987??:0
??:0
??:0
??:0
??:0
??:0
/mnt/programs/opt/src/AWS-gpl-2.3.0/demos/hello_world.adb:43
/mnt/programs/opt/src/AWS-gpl-2.3.0/.build/release/demos/obj/b~hello_world.adb:447
??:0

The problem is /mnt/programs/opt/src/AWS-gpl-2.3.0/.build/release/demos/obj/b~hello_world.adb does not exist :-)

So finally I tried the third solutions: Adding
exception
when e : others =>
Ada.Text_Io.Put_Line
(GNAT.Traceback.Symbolic.
Symbolic_Traceback(E));
at the end of the program.
So I got the two errors:
/usr/bin/ld: Unable to find -laddr2line
/usr/bin/ld: Unable to find -lbfd

So I use addr2line/*.o and bfd/*.o in the FreeBSD source tree to create the lib and then...
convert_addresses was missing. I found out in gcc source tree the following:
in ada/adaint.c:
/* Dummy function to satisfy g-trasym.o. See the preprocessor conditional
just above for a list of native platforms that provide a non-dummy
version of this procedure in libaddr2line.a. */
void
convert_addresses (const char *file_name ATTRIBUTE_UNUSED,
void *addrs ATTRIBUTE_UNUSED,
int n_addr ATTRIBUTE_UNUSED,
void *buf ATTRIBUTE_UNUSED,
int *len ATTRIBUTE_UNUSED)
{
*len = 0;
}

So I compile a single file with this function and link with all that stuff.
And compile was fine but no error anymore. I think the empty code of the function convert_addresses if the point. If you have a code more appropriate, I think I hope I'll be able to get GNAT.Traceback.Symbolic.Symbolic_Traceback(E) working.

Hi.
First:
At a glance it seems like you are missing -gnat05 in the compile command so you get and Ada95 compiler instead of Ada (Ada05) compiler.

And the second just a hint:
3 options to start debugging:
* Use the debugger.
* Do an addr2line -e httpd 0x28188ac9 0x2818a535 0x2819196a ..
* Last in your main program add a handler that proints
exception
when e : others =>
Ada.Text_Io.Put_Line
(GNAT.Traceback.Symbolic.
Symbolic_Traceback(E));

Sebastien Morand wrote:
Hi,

I've got two problems on AWS, hope there is some aws 2.3 users here. I'm under FreeBSD 7.0-STABLE running gnat and gcc 4.3

First, there are lines that doesn't compile, I think it's more an ada issue about some think I miss that an AWS issue:

$ gnatmake --GCC=gcc-ada -P *gpr && ./httpd
gcc-ada -c -I- -gnatA /mnt/programs/home/sebastien/workspaces/httpd/src/httpd/httpd.adb
httpd.adb:65:06: no selector "Initialize" for private type "Handler" defined at aws-services-dispatchers-uri.ads:41
httpd.adb:66:06: no selector "Initialize" for private type "Handler" defined at aws-services-dispatchers-virtual_host.ads:39
gnatmake: "/mnt/programs/home/sebastien/workspaces/httpd/src/httpd/httpd.adb" compilation error

The lines are the following:
60 H: AWS.Services.Dispatchers.URI.Handler;
61 V: AWS.Services.Dispatchers.Virtual_Host.Handler;
62 C: AWS.Config.Object := AWS.Config.Default_Config;
63
64 begin
65 H.Initialize;
66 V.Initialize;

What I don't understand is that AWS.Services.Dispatchers.URI.Handler; is a new AWS.Dispatchers.Handler and Initialize is defined for AWS.Dispatchers.Handler type, so it should be ok.


Second I'm not able to run AWS tests, I got the following for the hello_world demo :
$ ./hello_world
Call me on port 8080, I will stop in 60 seconds...

Execution terminated by unhandled exception
Exception name: AWS.NET.SOCKET_ERROR
Message: Connect : [47] Address family not supported by protocol family
Call stack traceback locations:
0x28188ac9 0x2818a535 0x2819196a 0x28183cac 0x2819bd94 0x2819e324 0x804d184 0x804d022 0x804c987

So, Could it be some mistakes in my gnat installation about socket?

Sebastien
.

Relevant Pages

  • Re: AWS issue
    ... At a glance it seems like you are missing -gnat05 in the compile command so you get and Ada95 compiler instead of Ada compiler. ... I've got two problems on AWS, hope there is some aws 2.3 users here. ... Execution terminated by unhandled exception ...
    (comp.lang.ada)
  • Re: why learn C?
    ... code in a way that Ada generics do not. ... Please give an example of one case where a C++ template gives more compile ... Ada gives you low-level type safety out of the box, ... "I can write type safe code in C". ...
    (comp.lang.ada)
  • Re: why learn C?
    ... code in a way that Ada generics do not. ... Please give an example of one case where a C++ template gives more compile ... Ada gives you low-level type safety out of the box, ... "I can write type safe code in C". ...
    (comp.lang.ada)
  • Re: GdMs DOS 3d engine in Ada
    ... compile on. ... anybody can get the latest DOS 3D engine here: ... low level things like keyboard & sound drivers, data streaming, ... Linux to DJGPP cross-compiler and run into trouble with Ada. ...
    (comp.os.msdos.djgpp)
  • Re: Compilator Fortran
    ... To facilitate compilation for the Windowed Debugger ... REM Invoke the debugger if compile and link went ok. ... This will compile, link, and invoke the windowed debugger. ...
    (comp.lang.fortran)