Re: Program exited with code -11 when calling
On Wednesday, 1 July 2020 at 05:47:16 UTC, Anthony wrote:
On Wednesday, 1 July 2020 at 05:33:48 UTC, H. S. Teoh wrote:
On Wed, Jul 01, 2020 at 05:04:28AM +, Anthony via
Digitalmars-d-learn wrote: [...]
auto str_utf8 = str.toUTF8();
bson_error_t error
auto bson = bson_new_from_json(cast(const
uint8_t*)str_utf8.ptr, -1,
&error);
I get a "Program exited with code -11" message.
Does anyone know what I'm doing wrong?
D strings are generally not null-terminated (except for
literals). Before passing them to a C function you need to add
a trailing null. Try using std.conv.toStringz instead of
casting the pointer yourself.
T
Thanks H. S. Teoh.
Hmm, still same result though.
import std.string;
auto str = toStringz("{\"a\":1}");
bson_error_t error;
bson_new_from_json(str, -1, &error);
extern(C) {
...
bson_t* bson_new_from_json(const char* data, long len,
bson_error_t* error);
}
Noob mistake:
I declared an array that should be of fixed size.
struct bson_error_t {
char[] message;
};
Should be:
struct bson_error_t {
char[504] message;
};
:/
Re: Program exited with code -11 when calling
bson_t* bson_new_from_json(in char* data, long len, bson_error_t*
error);
string str_utf8 = "{\"a\":1}";
bson_error_t error;
auto bson = bson_new_from_json(str_utf8.ptr, str_utf8.length,
&error);
You have a wrong declaration for bson_error_t too.
Re: Program exited with code -11 when calling
On Wednesday, 1 July 2020 at 05:33:48 UTC, H. S. Teoh wrote:
On Wed, Jul 01, 2020 at 05:04:28AM +, Anthony via
Digitalmars-d-learn wrote: [...]
auto str_utf8 = str.toUTF8();
bson_error_t error
auto bson = bson_new_from_json(cast(const
uint8_t*)str_utf8.ptr, -1,
&error);
I get a "Program exited with code -11" message.
Does anyone know what I'm doing wrong?
D strings are generally not null-terminated (except for
literals). Before passing them to a C function you need to add
a trailing null. Try using std.conv.toStringz instead of
casting the pointer yourself.
T
Thanks H. S. Teoh.
Hmm, still same result though.
import std.string;
auto str = toStringz("{\"a\":1}");
bson_error_t error;
bson_new_from_json(str, -1, &error);
extern(C) {
...
bson_t* bson_new_from_json(const char* data, long len,
bson_error_t* error);
}
Re: Program exited with code -11 when calling
On Wednesday, 1 July 2020 at 05:09:47 UTC, Cym13 wrote:
On Wednesday, 1 July 2020 at 05:04:28 UTC, Anthony wrote:
I'm trying to convert this c function:
bson_t *bson_new_from_json (const uint8_t *data, ssize_t len,
bson_error_t *error);
Into a D function. This is my attempt:
extern(C) {
struct bson_t;
struct bson_error_t;
bson_t* bson_new_from_json(const uint8_t* data, long len,
bson_error_t* error);
}
However when I try it, for example:
auto str_utf8 = str.toUTF8();
bson_error_t error
auto bson = bson_new_from_json(cast(const
uint8_t*)str_utf8.ptr, -1, &error);
I get a "Program exited with code -11" message.
Does anyone know what I'm doing wrong?
Thanks
I don't know the exact function you are trying to use, but -11
means "segmentation fault" on linux. This means that your
program is trying to read or write a memory location that it is
not supposed to. This typically happens during buffer overflows
and similar memory corruption bugs.
One thing that jumps to me is the -1 in your call instead of
the length. Without knowing the C function's implementation I
would expect it to mean either "read before the array" which
would be a buffer overflow or to have the special meaning of
"deduce the string size yourself". In that last case I would
expect bson_new_from_json to expect a NUL-terminated array, but
I don't know if your UTF8 array is NUL-terminated.
Thanks for getting back to me.
Yeah I figured it was a segmentation fault, however, I don't know
exactly how to pinpoint where this is happening. I'm wondering if
there's anything wrong with how I'm casting the data since
everything is self contained (assuming bson_new_from_json is
correct since it works using c directly).
void foo() {
import std.utf;
import core.stdc.stdint;
auto str_utf8 = "{\"a\":1}";
bson_error_t error;
bson_new_from_json(cast(uint8_t*)str_utf8,
(cast(uint8_t[])str_utf8).length, &error);
}
Re -1 in the call: Apparently it uses strlen() to deduce the
size. However, I tried explicitly state the array length but had
no luck.
Re: Program exited with code -11 when calling
On Wed, Jul 01, 2020 at 05:04:28AM +, Anthony via Digitalmars-d-learn wrote: [...] > auto str_utf8 = str.toUTF8(); > bson_error_t error > > auto bson = bson_new_from_json(cast(const uint8_t*)str_utf8.ptr, -1, > &error); > > > I get a "Program exited with code -11" message. > Does anyone know what I'm doing wrong? D strings are generally not null-terminated (except for literals). Before passing them to a C function you need to add a trailing null. Try using std.conv.toStringz instead of casting the pointer yourself. T -- A programming language should be a toolbox for the programmer to draw upon, not a minefield of dangerous explosives that you have to very carefully avoid touching in the wrong way.
Re: Program exited with code -11 when calling
On Wednesday, 1 July 2020 at 05:04:28 UTC, Anthony wrote:
I'm trying to convert this c function:
bson_t *bson_new_from_json (const uint8_t *data, ssize_t len,
bson_error_t *error);
Into a D function. This is my attempt:
extern(C) {
struct bson_t;
struct bson_error_t;
bson_t* bson_new_from_json(const uint8_t* data, long len,
bson_error_t* error);
}
However when I try it, for example:
auto str_utf8 = str.toUTF8();
bson_error_t error
auto bson = bson_new_from_json(cast(const
uint8_t*)str_utf8.ptr, -1, &error);
I get a "Program exited with code -11" message.
Does anyone know what I'm doing wrong?
Thanks
I don't know the exact function you are trying to use, but -11
means "segmentation fault" on linux. This means that your program
is trying to read or write a memory location that it is not
supposed to. This typically happens during buffer overflows and
similar memory corruption bugs.
One thing that jumps to me is the -1 in your call instead of the
length. Without knowing the C function's implementation I would
expect it to mean either "read before the array" which would be a
buffer overflow or to have the special meaning of "deduce the
string size yourself". In that last case I would expect
bson_new_from_json to expect a NUL-terminated array, but I don't
know if your UTF8 array is NUL-terminated.
Program exited with code -11 when calling
I'm trying to convert this c function:
bson_t *bson_new_from_json (const uint8_t *data, ssize_t len,
bson_error_t *error);
Into a D function. This is my attempt:
extern(C) {
struct bson_t;
struct bson_error_t;
bson_t* bson_new_from_json(const uint8_t* data, long len,
bson_error_t* error);
}
However when I try it, for example:
auto str_utf8 = str.toUTF8();
bson_error_t error
auto bson = bson_new_from_json(cast(const uint8_t*)str_utf8.ptr,
-1, &error);
I get a "Program exited with code -11" message.
Does anyone know what I'm doing wrong?
Thanks
Re: Program exited with code -11
On Wednesday, 18 September 2019 at 13:36:30 UTC, Arjan wrote: On Wednesday, 18 September 2019 at 13:22:03 UTC, Danny Arends "Program exited with code -11" Not signal 11? On unix/linux I assume? Same thing. This is a segmentation fault. Compile the program with the -g switch to dmd, then run it inside the gdb program gdb --args ./your_program any_args_to_your_program the hit the "r" command to run and when it crashes, it will tell you where. probably a null pointer.
Re: Program exited with code -11
On Wednesday, 18 September 2019 at 13:36:30 UTC, Arjan wrote: On Wednesday, 18 September 2019 at 13:22:03 UTC, Danny Arends wrote: Hey all, "Program exited with code -11" Not signal 11? On unix/linux I assume? It's on linux yes... No idea if it is a signal or an exitcode, the only indication is the text: "Program exited with code -11"
Re: Program exited with code -11
On Wednesday, 18 September 2019 at 13:22:03 UTC, Danny Arends wrote: Hey all, "Program exited with code -11" Not signal 11? On unix/linux I assume?
Program exited with code -11
Hey all, I have written some code to analyze massive gzipped files (using std.iopipe), tested it on small subsets of the gzip files, and everything works using small 20 to 50 Mb files. However when I try to run the code on 2.7 Gb file sizes the program always crashes with the following error: "Program exited with code -11" No other messages, did anyone ever encounter something like this before / got any ideas on how to figure out what is wrong ? Danny
Re: Program exited with code -11
On Thursday, 26 November 2015 at 08:15:02 UTC, Rikki Cattermole wrote: You forgot to load the pointers to the functions in the shared library :) https://github.com/DerelictOrg/DerelictSFML2 OMG. I am embarrassed. Thank you very much.
Re: Program exited with code -11
On 26/11/15 9:12 PM, Alex wrote:
Hello guys.
I am beginner with D and a hobbyist in general when it comes to
programming. I am following an SFML tutorial in C++ and trying to
"translate it" to D (at least the parts I think I understand). I am
using Derelict SFML2 bindgings to CSFML.
First I tried to do it procedural way and it works fine:
http://pastebin.com/6PjRCUHp
Then I tried an OOP way as per tutorial:
app.d =
module app;
import notquiteciv.game;
void main()
{
Game game = new Game();
game.gameLoop();
}
game.d = http://pastebin.com/ps9mMxGf
When I run "dub run" or "dub run --force", I get this:
Running ./notquiteciv
Program exited with code -11
$ lldb ./notquiteciv (run)
Process 81278 launched: './notquiteciv' (x86_64)
Process 81278 stopped
* thread #1: tid = 0x14dae3, 0x, queue =
'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
frame #0: 0x
error: memory read failed for 0x0
I am stuck. Can you give me a hint regarding this?
Thank you.
You forgot to load the pointers to the functions in the shared library :)
https://github.com/DerelictOrg/DerelictSFML2
Program exited with code -11
Hello guys.
I am beginner with D and a hobbyist in general when it comes to
programming. I am following an SFML tutorial in C++ and trying to
"translate it" to D (at least the parts I think I understand). I
am using Derelict SFML2 bindgings to CSFML.
First I tried to do it procedural way and it works fine:
http://pastebin.com/6PjRCUHp
Then I tried an OOP way as per tutorial:
app.d =
module app;
import notquiteciv.game;
void main()
{
Game game = new Game();
game.gameLoop();
}
game.d = http://pastebin.com/ps9mMxGf
When I run "dub run" or "dub run --force", I get this:
Running ./notquiteciv
Program exited with code -11
$ lldb ./notquiteciv (run)
Process 81278 launched: './notquiteciv' (x86_64)
Process 81278 stopped
* thread #1: tid = 0x14dae3, 0x, queue =
'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
address=0x0)
frame #0: 0x
error: memory read failed for 0x0
I am stuck. Can you give me a hint regarding this?
Thank you.
Re: Program exited with code -11
On Wednesday, 24 June 2015 at 07:52:10 UTC, Charles Hawkins wrote: On Wednesday, 24 June 2015 at 06:54:57 UTC, weaselcat wrote: On Tuesday, 23 June 2015 at 06:50:28 UTC, Charles Hawkins wrote: [...] you can instruct dub to use other compilers with the --compiler option valid options include dmd,ldc,gdc,gdmd,ldmd Ah, a "sort of" hidden option. I've only been typing "dub" and thus, "dub --help". Didn't think to do "dub build --help". Is there a quick way to get gdc to recognize std.experimental.logger? I'm already spoiled by it. Choosing between it and a backtrace is difficult. I believe it's available as a dub package albeit outdated, should be roughly similar though.
Re: Program exited with code -11
On Wednesday, 24 June 2015 at 06:54:57 UTC, weaselcat wrote: On Tuesday, 23 June 2015 at 06:50:28 UTC, Charles Hawkins wrote: On Tuesday, 23 June 2015 at 03:31:37 UTC, weaselcat wrote: On Tuesday, 23 June 2015 at 03:29:14 UTC, Charles Hawkins wrote: [...] Try to compile with either ldc or gdc and the -g flag, it should give you a backtrace. dmd seems to not like linux wrt backtraces. Thanks. I wish! I haven't had any success in compiling with anything but dub. gdc, dmd, rdmd always give me "module mylib is in file 'mylib.d' which cannot be read" on my "import mylib;" statement. I've tried every permutation of -I and -L that I can think of. It almost appears that one either uses dub for everything or nothing and I'm getting pretty frustrated with it as well. Perhaps I should just go back to old-fashioned make files? you can instruct dub to use other compilers with the --compiler option valid options include dmd,ldc,gdc,gdmd,ldmd Ah, a "sort of" hidden option. I've only been typing "dub" and thus, "dub --help". Didn't think to do "dub build --help". Is there a quick way to get gdc to recognize std.experimental.logger? I'm already spoiled by it. Choosing between it and a backtrace is difficult.
Re: Program exited with code -11
On Tuesday, 23 June 2015 at 06:50:28 UTC, Charles Hawkins wrote: On Tuesday, 23 June 2015 at 03:31:37 UTC, weaselcat wrote: On Tuesday, 23 June 2015 at 03:29:14 UTC, Charles Hawkins wrote: [...] Try to compile with either ldc or gdc and the -g flag, it should give you a backtrace. dmd seems to not like linux wrt backtraces. Thanks. I wish! I haven't had any success in compiling with anything but dub. gdc, dmd, rdmd always give me "module mylib is in file 'mylib.d' which cannot be read" on my "import mylib;" statement. I've tried every permutation of -I and -L that I can think of. It almost appears that one either uses dub for everything or nothing and I'm getting pretty frustrated with it as well. Perhaps I should just go back to old-fashioned make files? you can instruct dub to use other compilers with the --compiler option valid options include dmd,ldc,gdc,gdmd,ldmd
Re: Program exited with code -11
On Tuesday, 23 June 2015 at 11:18:07 UTC, anonymous wrote: On Tuesday, 23 June 2015 at 07:57:26 UTC, Charles Hawkins wrote: Sigh. I'm probably doing something stupid. I tried full paths: dmd -I+/home/charles/projects/d/mylib/source/mylib/ myprog.d What's that plus sign doing there? Looks wrong. /home/charles/projects/d/mylib/build/libmylib.a Same result. myprog.d(4) Error: module mylib is in file 'mylib.d' which cannot be read Statement in myprog is: import mylib; Hey, I was right! Something stupid! I really don't think I made it up. Either I copied from some example that was in error, or was looking at something for another language (I've been looking at several lately) that added to a search path. In any event, I was obviously confused. Thanks, all! I think I'm back on track now. In fact, I've got several test programs working with my library. It isn't so large that compiling it every time was that big of a deal, but nice to know I don't have to.
Re: Program exited with code -11
On Tuesday, 23 June 2015 at 07:57:26 UTC, Charles Hawkins wrote: Sigh. I'm probably doing something stupid. I tried full paths: dmd -I+/home/charles/projects/d/mylib/source/mylib/ myprog.d What's that plus sign doing there? Looks wrong. /home/charles/projects/d/mylib/build/libmylib.a Same result. myprog.d(4) Error: module mylib is in file 'mylib.d' which cannot be read Statement in myprog is: import mylib;
Re: Program exited with code -11
Try to compile with either ldc or gdc and the -g flag, it should give you a backtrace. dmd seems to not like linux wrt backtraces. ...I haven't had any success in compiling with anything but dub. gdc, dmd, rdmd always give me "module mylib is in file 'mylib.d' which cannot be read" on my "import mylib;" statement. ... in dmd you have to pass - the .lib/.a files a source - the path to the lib source with '-I'. Sometimes when the path is not well indicated you get the error you talk about. This is because the '-I' path must follow carefully the structure of the lib, e.g 'import myLib.package.moduleThis': the '-I' must point to the folder that contains the folder 'myLib'. ... dmd -I+/home/charles/projects/d/mylib/source/mylib/ myprog.d /home/charles/projects/d/mylib/build/libmylib.a Same result. myprog.d(4) Error: module mylib is in file 'mylib.d' which cannot be read Statement in myprog is: import mylib; ... I used -v to imitate what dub is doing and that works, except that I don't see any reference to the compiled library itself. Apparently it is recompiling the library as well, which defeats the main purpose of having a library in the first place. And gdc doesn't seem to recognize std.experimental.logger which is what I used in converting all my debugging code. Sigh.
Re: Program exited with code -11
On Tuesday, 23 June 2015 at 07:25:05 UTC, Baz wrote: in dmd you have to pass - the .lib/.a files a source I meant "as source", actually. you pass the .lib or .a file without switch as if it's a main source.
Re: Program exited with code -11
Ok, I think I've answered my own question. dub -v tells me what I need to know. Looks like I need to do a separate compile & link, make file like, just like the old days, or have a very complicated command line. However, if there is a simple way to do the above, which it seems there should be, please let me know.
Re: Program exited with code -11
On Tuesday, 23 June 2015 at 07:25:05 UTC, Baz wrote: On Tuesday, 23 June 2015 at 06:50:28 UTC, Charles Hawkins wrote: On Tuesday, 23 June 2015 at 03:31:37 UTC, weaselcat wrote: On Tuesday, 23 June 2015 at 03:29:14 UTC, Charles Hawkins wrote: Thanks, Adam. I'm coming from OCaml and haven't seen a seg fault in years. Didn't recognize it. :D Hopefully I can figure it out from here. Try to compile with either ldc or gdc and the -g flag, it should give you a backtrace. dmd seems to not like linux wrt backtraces. Thanks. I wish! I haven't had any success in compiling with anything but dub. gdc, dmd, rdmd always give me "module mylib is in file 'mylib.d' which cannot be read" on my "import mylib;" statement. I've tried every permutation of -I and -L that I can think of. It almost appears that one either uses dub for everything or nothing and I'm getting pretty frustrated with it as well. Perhaps I should just go back to old-fashioned make files? in dmd you have to pass - the .lib/.a files a source - the path to the lib source with '-I'. Sometimes when the path is not well indicated you get the error you talk about. This is because the '-I' path must follow carefully the structure of the lib, e.g 'import myLib.package.moduleThis': the '-I' must point to the folder that contains the folder 'myLib'. Sigh. I'm probably doing something stupid. I tried full paths: dmd -I+/home/charles/projects/d/mylib/source/mylib/ myprog.d /home/charles/projects/d/mylib/build/libmylib.a Same result. myprog.d(4) Error: module mylib is in file 'mylib.d' which cannot be read Statement in myprog is: import mylib; I used tab expansion so I'm confident everything is spelled correctly. Since dub will compile it, I also tried copying and pasting its entry from the local packages file (leaves off the "source/mylib/"). Is there a way to find out what command dub is passing to dmd?
Re: Program exited with code -11
On Tuesday, 23 June 2015 at 06:50:28 UTC, Charles Hawkins wrote: On Tuesday, 23 June 2015 at 03:31:37 UTC, weaselcat wrote: On Tuesday, 23 June 2015 at 03:29:14 UTC, Charles Hawkins wrote: Thanks, Adam. I'm coming from OCaml and haven't seen a seg fault in years. Didn't recognize it. :D Hopefully I can figure it out from here. Try to compile with either ldc or gdc and the -g flag, it should give you a backtrace. dmd seems to not like linux wrt backtraces. Thanks. I wish! I haven't had any success in compiling with anything but dub. gdc, dmd, rdmd always give me "module mylib is in file 'mylib.d' which cannot be read" on my "import mylib;" statement. I've tried every permutation of -I and -L that I can think of. It almost appears that one either uses dub for everything or nothing and I'm getting pretty frustrated with it as well. Perhaps I should just go back to old-fashioned make files? in dmd you have to pass - the .lib/.a files a source - the path to the lib source with '-I'. Sometimes when the path is not well indicated you get the error you talk about. This is because the '-I' path must follow carefully the structure of the lib, e.g 'import myLib.package.moduleThis': the '-I' must point to the folder that contains the folder 'myLib'.
Re: Program exited with code -11
On Tuesday, 23 June 2015 at 03:31:37 UTC, weaselcat wrote: On Tuesday, 23 June 2015 at 03:29:14 UTC, Charles Hawkins wrote: Thanks, Adam. I'm coming from OCaml and haven't seen a seg fault in years. Didn't recognize it. :D Hopefully I can figure it out from here. Try to compile with either ldc or gdc and the -g flag, it should give you a backtrace. dmd seems to not like linux wrt backtraces. Thanks. I wish! I haven't had any success in compiling with anything but dub. gdc, dmd, rdmd always give me "module mylib is in file 'mylib.d' which cannot be read" on my "import mylib;" statement. I've tried every permutation of -I and -L that I can think of. It almost appears that one either uses dub for everything or nothing and I'm getting pretty frustrated with it as well. Perhaps I should just go back to old-fashioned make files?
Re: Program exited with code -11
On Tuesday, 23 June 2015 at 03:29:14 UTC, Charles Hawkins wrote: Thanks, Adam. I'm coming from OCaml and haven't seen a seg fault in years. Didn't recognize it. :D Hopefully I can figure it out from here. Try to compile with either ldc or gdc and the -g flag, it should give you a backtrace. dmd seems to not like linux wrt backtraces.
Re: Program exited with code -11
Thanks, Adam. I'm coming from OCaml and haven't seen a seg fault in years. Didn't recognize it. :D Hopefully I can figure it out from here.
Re: Program exited with code -11
On Tuesday, 23 June 2015 at 02:45:24 UTC, Adam D. Ruppe wrote: 128 == -1 I'm sorry, I need to stop posting these things without thinking. -1 is actually 255 when you cast it, but I'm pretty sure the shell just does that subtraction from 128 because of the signal reservation codes. I stand by the rest of the post...
Re: Program exited with code -11
On Tuesday, 23 June 2015 at 02:34:17 UTC, Charles Hawkins wrote:
How do I find out what that means?
Many return codes have a meaning in the linux documentation:
http://www.tldp.org/LDP/abs/html/exitcodes.html#EXITCODESREF
(it lists them as unsigned, but you got a signed result. 128 ==
-1, so -11 falls under the 128+ section in that table)
-11 means it exited with signal 11. Do "man 7 signal" in linux to
get the signal documentation overview. One of the lines there is:
SIGSEGV 11 CoreInvalid memory reference
Signal #11 is segmentation fault.
Since you're a D newbie, I'm guessing you made the mistake of
forgetting to new a class before using it:
class Foo {}
void main() {
Foo foo;
foo.something(); // this will segfault, killing the program
}
That's different than C++, D's classes are more like Java. You
need to:
Foo foo = new Foo();
or
auto foo = new Foo();
so it isn't a null reference.
Program exited with code -11
My first attempt at a significant D program and I'm getting: Error executing command run: Program exited with code -11 How do I find out what that means?
