[Bug target/28845] configured --with-gnu-* reports unrecognized option '-rdynamic'

[pluto at agmk dot net]

------- Comment #2 from pluto at agmk dot net  2006-08-25 14:38 -------
really?
please look at this.

[1] cross build on linux machine:

sparc-sun-solaris2.9-g++ backtracexx.cpp -o libbacktracexx.so -shared -ldl
-Wall -Werror -pedantic \
        -O3 -fpic -funwind-tables -fno-exceptions -fno-rtti

sparc-sun-solaris2.9-g++ example.cpp -o example ./libbacktracexx.so -Wall
-Werror -pedantic \
        -O1 -funwind-tables -Wl,--export-dynamic

[2] run on soalris:

$ uname -a
SunOS hermes 5.9 Generic_117171-07 sun4u sparc SUNW,Sun-Blade-1500

$ ./example
        0xff381118 : backtracexx::scan()+0x20
                     from /home/pawels/backtracexx/libbacktracexx.so
           0x10bb0 : zoo()+0xc from /home/pawels/backtracexx/example
           0x10ad4 : bar(void (*)())+0x4 from /home/pawels/backtracexx/example
           0x10aec : foo()+0x8 from /home/pawels/backtracexx/example
           0x10b00 : main+0x4 from /home/pawels/backtracexx/example
           0x10968 : _start+0x5c from /home/pawels/backtracexx/example

$ file example libbacktracexx.so
example:           ELF 32-bit MSB executable, SPARC, version 1 (SYSV),
                   dynamically linked (uses shared libs), not stripped
libbacktracexx.so: ELF 32-bit MSB shared object, SPARC, version 1 (SYSV),
                   not stripped

without -Wl,--export-dynamic i get:

$ ./example
        0xff381118 : backtracexx::scan()+0x20
                     from /home/pawels/backtracexx/libbacktracexx.so
           0x10aa4 : _init+0x2c0 from /home/pawels/backtracexx/example
           0x109c8 : _init+0x1e4 from /home/pawels/backtracexx/example
           0x109e0 : _init+0x1fc from /home/pawels/backtracexx/example
           0x109f4 : _init+0x210 from /home/pawels/backtracexx/example
           0x1085c : _init+0x78 from /home/pawels/backtracexx/example

cross-binutils for sparc-solaris supports --export-dynamic.


-- 

pluto at agmk dot net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
         Resolution|INVALID                     |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28845