Some more insight or some more confusion, I do not know.
Using -Wl,-ztext we can force the linker to emit a warning about text
relocations. The advantage is that it shows the actual symbols. For an ECL
with an external GMP (not its own) it shows the ones below. I would say they
are pretty harmless, aren't they? GMP has the same relocation "problems" so
to say.
;;; gcc -o "libecl.so" -L"/export/home/jjgarcia/tmp/opensolaris64/"
"c/main.o" "c/all_symbols2.o" "liblsp.a" "libeclmin.a"
"-Wl,-R,/export/home/jjgarcia/lib/" -dy -G -fPIC -Wl,-ztext -leclgc
-ldl -lm -lsocket -lnsl -lintl -lgmp
Text relocation remains referenced
against symbol offset in file
__get_exit_frame_monitor_ptr 0x27 /usr/lib/crt1.o
__do_exit_code_ptr 0x33 /usr/lib/crt1.o
__fsr_init_value_ptr 0xa6 /usr/lib/crt1.o
trap_table 0xbf /usr/lib/crt1.o
main 0x7f /usr/lib/crt1.o
_DYNAMIC 0x7 /usr/lib/crt1.o
_environ 0x4b /usr/lib/crt1.o
_environ 0x59 /usr/lib/crt1.o
___Argv 0x69 /usr/lib/crt1.o
_fini 0x19 /usr/lib/crt1.o
__fsr 0x75 /usr/lib/crt1.o
_init 0x7a /usr/lib/crt1.o
__fpstart 0x70 /usr/lib/crt1.o
exit 0x8b /usr/lib/crt1.o
_exit 0x97 /usr/lib/crt1.o
atexit 0x11 /usr/lib/crt1.o
atexit 0x1e /usr/lib/crt1.o
atexit 0x3f /usr/lib/crt1.o
Now the funny thing is that if I copy the *.so file to a Linux box with
"scanelf' (none of the Solaris boxes have this program), I get different
results which I do not know how to interpret. scanelf -qtT is supposed to
reveal the text relocations, but all it shows is function calls and global
variables and they are tagged "optimized out" which I do not know how to
interpret.
libecl.so: (memory/data?) [0x39467] in (optimized out) [0x39440]
libecl.so: (memory/data?) [0x39473] in (optimized out) [0x39440]
libecl.so: (memory/data?) [0x394E6] in (optimized out: previous __fsr)
[0x394DC]
libecl.so: (memory/data?) [0x394FF] in (optimized out: previous __fsr)
[0x394DC]
libecl.so: c_register_block [0x394BF] in (optimized out) [0x39440]
libecl.so: LC30cadadr [0x39447] in (optimized out) [0x39440]
libecl.so: VV [0x3948B] in (optimized out) [0x39440]
libecl.so: VV [0x39499] in (optimized out) [0x39440]
libecl.so: L8find_restart_never_fail [0x394A9] in (optimized out)
[0x39440]
libecl.so: LC117__g1448 [0x39459] in (optimized out) [0x39440]
libecl.so: .LC0 [0x394B5] in (optimized out) [0x39440]
libecl.so: LC98__g1345 [0x394BA] in (optimized out) [0x39440]
libecl.so: L4_convert_to_ffi_type [0x394B0] in (optimized out) [0x39440]
libecl.so: .L112 [0x394CB] in (optimized out) [0x39440]
libecl.so: compiler_data_text [0x394D7] in (optimized out) [0x39440]
libecl.so: LC64rotatef [0x39451] in (optimized out) [0x39440]
libecl.so: LC64rotatef [0x3945E] in (optimized out) [0x39440]
libecl.so: LC64rotatef [0x3947F] in (optimized out) [0x39440]
0755 LE --- --- RWX TEXTREL
/usr/ccs/lib:/lib:/usr/lib:/usr/sfw/lib:/export/hom
--
Instituto de Física Fundamental, CSIC
c/ Serrano, 113b, Madrid 28006 (Spain)
http://juanjose.garciaripoll.googlepages.com
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