Scanelf -qT gives more information: libtestpic.so: (memory/data?) [0x241B7] in (optimized out: previous _$SYSTEM$_Ld159) [0x241B4] libtestpic.so: (memory/data?) [0x24397] in (optimized out: previous .La330) [0x24383] libtestpic.so: (memory/data?) [0x24577] in (optimized out: previous .La337) [0x24555] libtestpic.so: (memory/data?) [0x35318] in (optimized out: previous _$CLASSES$_Ld454) [0x350BE] libtestpic.so: (memory/data?) [0x48465] in (optimized out: previous .La29) [0x4844C] libtestpic.so: (memory/data?) [0x6201E] in (optimized out: previous SYSUTILS_FORMAT$ANSISTRING$array_of_const$$ANSISTRING) [0x62000] libtestpic.so: (memory/data?) [0x62168] in (optimized out: previous SYSUTILS_FORMATBUF$formal$LONGWORD$formal$LONGWORD$array_of_const$$LONGWORD) [0x62140] libtestpic.so: (memory/data?) [0x62261] in (optimized out: previous SYSUTILS_FMTSTR$ANSISTRING$ANSISTRING$array_of_const) [0x62240] libtestpic.so: (memory/data?) [0x622A1] in (optimized out: previous SYSUTILS_STRFMT$PCHAR$PCHAR$array_of_const$$PCHAR) [0x62280] libtestpic.so: (memory/data?) [0x62345] in (optimized out: previous SYSUTILS_STRLFMT$PCHAR$LONGWORD$PCHAR$array_of_const$$PCHAR) [0x62320] libtestpic.so: (memory/data?) [0x626AE] in (optimized out: previous DBG_BASEUNIX_TRLIMIT) [0x626A7] libtestpic.so: (memory/data?) [0x640EC] in (optimized out: previous SYSUTILS_FLOATTOTEXT$PCHAR$EXTENDED$TFLOATFORMAT$LONGINT$LONGINT$$LONGINT) [0x640C0] libtestpic.so: (memory/data?) [0x64179] in (optimized out: previous SYSUTILS_FLOATTOSTRF$EXTENDED$TFLOATFORMAT$LONGINT$LONGINT$$ANSISTRING) [0x64150] libtestpic.so: (memory/data?) [0x64204] in (optimized out: previous SYSUTILS_FLOATTOSTRF$CURRENCY$TFLOATFORMAT$LONGINT$LONGINT$$ANSISTRING) [0x641E0] libtestpic.so: (memory/data?) [0x642AE] in (optimized out: previous SYSUTILS_FLOATTOSTRF$DOUBLE$TFLOATFORMAT$LONGINT$LONGINT$$ANSISTRING) [0x64280] libtestpic.so: (memory/data?) [0x64341] in (optimized out: previous SYSUTILS_FLOATTOSTRF$SINGLE$TFLOATFORMAT$LONGINT$LONGINT$$ANSISTRING) [0x64320] libtestpic.so: (memory/data?) [0x643D4] in (optimized out: previous SYSUTILS_FLOATTOSTRF$COMP$TFLOATFORMAT$LONGINT$LONGINT$$ANSISTRING) [0x643B0] libtestpic.so: (memory/data?) [0x64474] in (optimized out: previous SYSUTILS_FLOATTOSTRF$INT64$TFLOATFORMAT$LONGINT$LONGINT$$ANSISTRING) [0x64450] libtestpic.so: (memory/data?) [0x68E78] in (optimized out: previous SYSUTILS_STRTODATE$PCHAR$LONGINT$ANSISTRING$CHAR$$TDATETIME) [0x68E30] libtestpic.so: (memory/data?) [0x69995] in (optimized out: previous SYSUTILS_STRTOTIME$PCHAR$LONGINT$CHAR$$TDATETIME) [0x69950] libtestpic.so: (memory/data?) [0x6AFC8] in (optimized out: previous SYSUTILS_TRYSTRTODATE$SHORTSTRING$TDATETIME$ANSISTRING$CHAR$$BOOLEAN) [0x6AF80] libtestpic.so: (memory/data?) [0x6B0A0] in (optimized out: previous SYSUTILS_TRYSTRTODATE$ANSISTRING$TDATETIME$ANSISTRING$CHAR$$BOOLEAN) [0x6B040] libtestpic.so: (memory/data?) [0x6B305] in (optimized out: previous SYSUTILS_TRYSTRTOTIME$SHORTSTRING$TDATETIME$CHAR$$BOOLEAN) [0x6B2C0] libtestpic.so: (memory/data?) [0x6B40D] in (optimized out: previous SYSUTILS_TRYSTRTOTIME$ANSISTRING$TDATETIME$CHAR$$BOOLEAN) [0x6B3B0] libtestpic.so: (memory/data?) [0x6E36E] in (optimized out: previous SYSUTILS_WIDEFORMAT$WIDESTRING$array_of_const$$WIDESTRING) [0x6E350] libtestpic.so: (memory/data?) [0x6E4B8] in (optimized out: previous SYSUTILS_WIDEFORMATBUF$formal$LONGWORD$formal$LONGWORD$array_of_const$$LONGW ORD) [0x6E490] libtestpic.so: (memory/data?) [0x6E5B1] in (optimized out: previous SYSUTILS_WIDEFMTSTR$WIDESTRING$WIDESTRING$array_of_const) [0x6E590] libtestpic.so: (memory/data?) [0x6FEFE] in (optimized out: previous SYSUTILS_UNICODEFORMAT$UNICODESTRING$array_of_const$$UNICODESTRING) [0x6FEE0] libtestpic.so: (memory/data?) [0x70048] in (optimized out: previous SYSUTILS_UNICODEFORMATBUF$formal$LONGWORD$formal$LONGWORD$array_of_const$$LO NGWORD) [0x70020] libtestpic.so: (memory/data?) [0x70141] in (optimized out: previous SYSUTILS_UNICODEFMTSTR$UNICODESTRING$UNICODESTRING$array_of_const) [0x70120] libtestpic.so: (memory/data?) [0x7116B] in (optimized out: previous SYSUTILS_SUPPORTS$IUNKNOWN$TCLASS$formal$$BOOLEAN) [0x71140] libtestpic.so: (memory/data?) [0x7BF23] in (optimized out: previous UNIX_READTIMEZONEFILE$SHORTSTRING) [0x7BE50] libtestpic.so: (memory/data?) [0x7EC41] in (optimized out: previous BASEUNIX_FPGETENV$SHORTSTRING$$PCHAR) [0x7EC10] libtestpic.so: (memory/data?) [0x80C64] in (optimized out: previous BASEUNIX_FPOPEN$SHORTSTRING$LONGINT$$LONGINT) [0x80C30] libtestpic.so: (memory/data?) [0x80CD7] in (optimized out: previous BASEUNIX_FPOPEN$SHORTSTRING$LONGINT$LONGWORD$$LONGINT) [0x80CA0] libtestpic.so: (memory/data?) [0x80DB1] in (optimized out: previous BASEUNIX_FPOPENDIR$SHORTSTRING$$PDIR) [0x80D80] libtestpic.so: (memory/data?) [0x80E24] in (optimized out: previous BASEUNIX_FPSTAT$SHORTSTRING$STAT$$LONGINT) [0x80DF0] libtestpic.so: (memory/data?) [0x8162C] in (optimized out: previous UNIXUTIL_STRINGTOPPCHAR$SHORTSTRING$SMALLINT$$PPCHAR) [0x81610] libtestpic.so
AFAIK these are all part of the rtl. Why are only these remaining? > -----Message d'origine----- > De : fpc-pascal-boun...@lists.freepascal.org > [mailto:fpc-pascal-boun...@lists.freepascal.org] De la part > de Ludo Brands > Envoyé : mercredi 1 juin 2011 15:23 > À : 'FPC-Pascal users discussions' > Objet : [fpc-pascal] Linux i386 libraries and PIC > > > Dear all, > > I'm trying to create a library on linux i386 that contains > only PIC code. The library is a driver that runs unconfined > causing SELinux (Fedora) to block the loading of the library. > The library is compiled with -fPIC but eu-findtextrel reports > a lot of relocations (4933 in my library and 3852 in a small > testlibrary). The problem seems to be that the RTL isn't > compiled with -fPIC. And that is where I need your help. Here > is what I tried so far (fpc 2.5.1 svn 17622): > 1) (bootstrap compiler 2.4.4) > make clean all OPT="-fPIC" > --> EAccessViolation when compiling system.pp with ppc386 (the > --> bootstrap) > > 2) (bootstrap compiler 2.5.1 build with make clean all) > make clean all OPT="-fPIC" PP=/path/to/2.5.1/compiler > --> EAccessViolation when compiling ../unix/classes with ppc1 > > Compiler doesn't need to be PIC. So try rebuilding rtl only. > > 3) (fpc 2.4.4) > make clean all OPT="-g -gw" > cd rtl > make clean OPT="-fPIC -g -gw" > --> EAccessViolation when compiling system.pp > > 4) (still in dir rtl) > make clean OPT="-fPIC -g -gw" PP=/path/to/2.5.1/compiler > cd .. > sudo make install > --> changed checksum for system.pp, recompile cairo, can't find unit > --> cairo > > 5) > sudo make install OPT="-Fu/path/to/svn/packages/*/src/" > PP=/path/to/2.5.1/compiler > sudo make sourceinstall PP=/path/to/2.5.1/compiler > > All OK. RTL should be PIC now. Rebuild testlibrary. Result > from eu-findtextrel 38: relocations for the testproject. > Much, much better, but not zero :( Although the compiler (and > the testproject) was build with -g -gw, eu-findtextrel > doesn't provide any usefull info on the relocation. It only > says "the file containing the function 'test' might not be > compiled with -fpic/-fPIC" for avery relocation found. > eu-readelf -r shows 9692 386_relative and 4 386_JMP_SLOT > type relocations. > > What did I do wrong? Or is a rtl PIC not enough? > > BTW. Linux x64 works perfectly. 0 relocations and a happy SELinux. > > Thanks, Ludo > > > > _______________________________________________ > fpc-pascal maillist - fpc-pascal@lists.freepascal.org > http://lists.freepascal.org/mailman/listinfo/fpc-pascal > _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
