Re: [fpc-pascal] Executable stack in shared library

2010-05-25 Thread Matthias Klumpp
On Sun, 23 May 2010 12:01:28 +0200, Jonas Maebe jonas.ma...@elis.ugent.be wrote: On 22 May 2010, at 21:07, Matthias Klumpp wrote: On Sat, 22 May 2010 20:38:59 +0200, Jonas Maebe jonas.ma...@elis.ugent.be wrote: Actually, yes. The ELF resource writer should probably add such a section as

Re: [fpc-pascal] Executable stack in shared library

2010-05-23 Thread Jonas Maebe
On 22 May 2010, at 21:07, Matthias Klumpp wrote: On Sat, 22 May 2010 20:38:59 +0200, Jonas Maebe jonas.ma...@elis.ugent.be wrote: Actually, yes. The ELF resource writer should probably add such a section as well. Should I write a bug report for this? Yes. Jonas

Re: [fpc-pascal] Executable stack in shared library

2010-05-22 Thread Matthias Klumpp
Thank you for the information! I use FPC 2.4.0 but get this warning... Then I don't know what the problem is. I cannot reproduce it. It seems like the E flag is set. That suggests that one of the object files used to link this library is missing a .note.GNU-stack section for some

Re: [fpc-pascal] Executable stack in shared library

2010-05-22 Thread Jonas Maebe
On 22 May 2010, at 14:00, Matthias Klumpp wrote: That suggests that one of the object files used to link this library is missing a .note.GNU-stack section for some reason. How can I detect which one it is? (How can I list the sections of an object file?) readelf -S If you compile the

Re: [fpc-pascal] Executable stack in shared library

2010-05-22 Thread Matthias Klumpp
On Sat, 22 May 2010 14:03:57 +0200, Jonas Maebe jonas.ma...@elis.ugent.be wrote: On 22 May 2010, at 14:00, Matthias Klumpp wrote: That suggests that one of the object files used to link this library is missing a .note.GNU-stack section for some reason. How can I detect which one it is? (How

Re: [fpc-pascal] Executable stack in shared library

2010-05-22 Thread Jonas Maebe
On 22 May 2010, at 19:25, Matthias Klumpp wrote: I checked the files, all .o files had the section. But there was also an .or file of the new FPC resource system in INPUT() this file had no .note.GNU-stack section. Is that relevant? Actually, yes. The ELF resource writer should probably add

Re: [fpc-pascal] Executable stack in shared library

2010-05-22 Thread Matthias Klumpp
On Sat, 22 May 2010 20:38:59 +0200, Jonas Maebe jonas.ma...@elis.ugent.be wrote: On 22 May 2010, at 19:25, Matthias Klumpp wrote: I checked the files, all .o files had the section. But there was also an .or file of the new FPC resource system in INPUT() this file had no .note.GNU-stack

[fpc-pascal] Executable stack in shared library

2010-05-21 Thread Matthias Klumpp
Hi! I package a Freepascal project for Debian which uses a shared library. If I run the quality analysis on those packages, I get a warning, that the shared library has an executable stack. [1] Why does it have one, if it is not necessary? How can I disable this in FPC? Thanks and kind regards

Re: [fpc-pascal] Executable stack in shared library

2010-05-21 Thread Tomas Hajny
On Fri, May 21, 2010 18:50, Matthias Klumpp wrote: Hi, I package a Freepascal project for Debian which uses a shared library. If I run the quality analysis on those packages, I get a warning, that the shared library has an executable stack. [1] Why does it have one, if it is not necessary?

Re: [fpc-pascal] Executable stack in shared library

2010-05-21 Thread Matthias Klumpp
Which shared library (out of those listed) is supposed to be used with FPC? As far as I can see, none of these libraries comes from FPC, it's probably just that one of FPC packages uses it - what are we supposed to do with that? The package is not listed there because the package only lists

Re: [fpc-pascal] Executable stack in shared library

2010-05-21 Thread Jonas Maebe
On 21 May 2010, at 18:50, Matthias Klumpp wrote: I package a Freepascal project for Debian which uses a shared library. If I run the quality analysis on those packages, I get a warning, that the shared library has an executable stack. Which version of FPC are you using? We have been adding

Re: [fpc-pascal] Executable stack in shared library

2010-05-21 Thread Matthias Klumpp
Hi! Thank you for the information! I use FPC 2.4.0 but get this warning... Here's the output of readelf -l on the shared library: Elf file type is DYN (Shared object file) Entry point 0xf3db0 There are 4 program headers, starting at offset 64 Program Headers: Type

Re: [fpc-pascal] Executable stack in shared library

2010-05-21 Thread Jonas Maebe
On 21 May 2010, at 20:13, Matthias Klumpp wrote: Thank you for the information! I use FPC 2.4.0 but get this warning... Then I don't know what the problem is. I cannot reproduce it. It seems like the E flag is set. That suggests that one of the object files used to link this library is