[haiku-bugs] [Haiku] #6491: ldsym() / dladdr() work strange
- From: "Guest One" <trac@xxxxxxxxxxxx>
- Date: Tue, 24 Aug 2010 05:20:31 -0000
#6491: ldsym() / dladdr() work strange
----------------------------+-----------------------------------------------
Reporter: Guest One | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: System/POSIX | Version: R1/Development
Keywords: | Blocked By:
Has a Patch: 0 | Platform: All
Blocking: |
----------------------------+-----------------------------------------------
I am not sure if it is a real bug or just my improper usage, but attached
example works different on Linux and Haiku.
(test.lib.c)
{{{#!C
int exoprted_symbol[]= {1, 2, 3, 4, 5, -1};
}}}
(test.app.c)
{{{#!C
void *ptr;
void *symbol;
Dl_info info;
ptr = dlopen("./test.lib.so", RTLD_LAZY);
if(ptr==NULL)
{
printf( "%s\n", dlerror() );
return 1;
}
symbol = dlsym( ptr, "exoprted_symbol") ;
if ( symbol == NULL )
{
printf( "%s\n", dlerror() );
return 1;
}
if( ! dladdr( symbol, &info ) )
{
printf( "Error mapping address.\n" );
}
printf( "fname=%s\n", info.dli_fname );
printf( "fbase=%p\n", info.dli_fbase );
printf( "sname=%s\n", info.dli_sname );
printf( "saddr=%p\n", info.dli_saddr );
}}}
On Linux we have:
{{{
fname=./test.lib.so
fbase=0xb78be000
sname=exoprted_symbol
saddr=0xb78c000c
}}}
On Haiku:
{{{
Error mapping address.
fname=
fbase=0x7ffeef9c
sname=
saddr=(nil)
}}}
--
Ticket URL: <http://dev.haiku-os.org/ticket/6491>
Haiku <http://dev.haiku-os.org>
Haiku - the operating system.
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