* For unresolved weak symbols, provide dynamic binding only if they are referenced via GOT or PLT (ld-compatible behavior).
* Made more TElfExeOutput properties/methods usable by descendant classes.
* x86_64/cpuelf.pas: some refactoring, handle DTPOFF relocations, prohibit TPOFF relocations in shared objects.
* i386/cpuelf.pas: set symref_from_text flags for copy relocations to work correctly.
git-svn-id: trunk@23375 -
* Made name of dynamic interpreter variable, it is now set correctly for each target.
- Removed setting header flags for ARM. This functionality belongs to CPU-specific unit anyway, and probably must be implemented using object attributes in modern ABIs.
git-svn-id: trunk@23032 -
x86_64 is the most elaborated, has some degree of indirect function (GNU_IFUNC) and TLS support, so it is even able to link with static libc/pthreads code (tw14265) and produce an executable that can launch (but still fails due to invalid DWARF unwind info).
i386 produces working shared libraries if they are compiled with -Cg, without one your mileage may vary. tw14265 does not link yet due to missing COMDAT group support.
git-svn-id: trunk@22775 -
Make macro MIPS/CPUMIPS/MIPS32 common for big endian and little endian mips processors
use MIPSEL* for little endian systems
use MIPSEB* for big endian systems
git-svn-id: trunk@21599 -
rather than with single/double quotes depending on the target platform
(ld only supports double quotes), and rather than only quoting when
necessary (wastes time since quotes are always allowed, and double
quotes inside a directory name cannot be escaped for ld; they are
simply not supported by the program) (mantis #22059, follow-up to
r21069 and r21208)
git-svn-id: trunk@21343 -
that deal with paths/filenames with TPathStr (= ansistring) to prevent
cutting off long paths (no change in speed when compiling the compiler,
1% extra memory usage)
git-svn-id: trunk@21120 -
o new eabihf (hard float) abi
o vfpv3_d16 variant of VFP (default variant used by EABI assemblers: VFPv3
with only 16 double registers instead of 32) and pass it to GNU as
o make the odd numbered single precision floating point VFP registers
available for explicit allocation for use by the calling convention
* fixed copy/paste error in stdname of S30 register
-> use -dFPC_ARMHF to create an ARM eabi hard float compiler
(mantis #21554)
git-svn-id: trunk@20660 -
Every startup code must now provide an additional entry point called "_dynamic_start" that is set as new the entry point if the program links to a Pascal shared library. Its purpose is to set up an exit hook usually passed via a register, which should be called during program finalization if non-nil.
We use this additional entry point because this register only has meaningful content when there are any compile-time linked shared libraries, otherwise it often contains random garbage. The difference between the _dynamic_start and the original code is minimal; actually in all implementations the _dynamic_start code passes on control to the old startup code, so we use an additional entry point instead of an additional startup file.
Detailed changes and fixes list:
compiler:
always link to the dynamic loader (ld.so) when compiling shared libraries. Fixes crashes in the loader during shared library finalization on some Linuxes
remove additional ENTRY() section in arm linker script
select either _dynamic_start or _start as entry point depending on whether this is a static or dynamic executable
powerpc*:
do not set System.isLibrary in startup code, it will be set during library initialization anyway
trap in case of reaching code locations that should not be reached instead of looping (possibly endlessly)
powerpc:
register atexit() function pointer if supplied to the executable and call it during shutdown
correctly set argc/argv/envp in shared library code and return correctly to the caller after initialization
pass on exitcode in shared library haltproc
use the more recent exit_group system call if available for shutdown
powerpc64
fix .ptrgl stub, do not set the environment register to the value of the GOT entry in the function descriptor
arm
do not set System.isLibrary in startup code, it will be set during library initialization anyway
reload exitcode to pass to shutdown
mips,mipsel,sparc
added stubs to allow correct linking
git-svn-id: trunk@19036 -
loop when attempting to terminate a process via the RTL compiled into
a Linux shared library (mantis #17383)
* call FPC_LIB_EXIT (the internal/generic RTL finalisation routine) instead
of FPC_SHARED_LIB_EXIT (the Linux-specific "process exit" code for shared
libraries) as "fini" routine (fixes#14958 again after reverting r14184)
git-svn-id: trunk@16418 -
- sort of reverted r14134, which is no longer required after the above
change (new_section() inserts the alignment itself)
* made the tai_section.create() constructor private so it cannot be
called directly anymore
git-svn-id: trunk@15482 -
o fixed gprof under linux/i386
o fixed pic-compilation of the linux/i386 rtl
o initialisation of linux shared libraries is now possible with pic-code
git-svn-id: trunk@13703 -
libraries on linux (mantis #6822)
* fixed execution of library finalization sections on darwin
(previously only the finalization section of the library
compilation unit itself was executed, now those of the units
used by the library are also executed)
git-svn-id: trunk@10554 -
(todo: at least solaris, maybe others)
* changed the "exports" section handling:
a) make everything private which is not exported (implemented for
darwin and linux)
b) for the exported symbols:
- functions/procedures
1) if no name or index is provided, and if the procedure has aliases
defined via the public/export directives, then export the default
mangled name and all defined aliases
2) otherwise if no name is specified (but there is an index) then
i) if the procedure is defined as cdecl/cppdecl/mwpascal, use the
appropriately mangled version of the function name
ii) otherwise export the name without any mangling(e.g. "exports
proc1" -> proc1 is the exported name)
- variables
1) if no name is provided and the variable was specified as cvar,
use the mangled name
2) otherwise if no name is provided, export the name without any
mangling
-> initialization/finalization of shared libraries under Linux works
again (mantis #7838)
-> sharing symbols between shared library and main program works
under Linux (mantis #9089)
git-svn-id: trunk@10551 -
when linked to FPC-compiled programs under linux/i386 which
do not use libc + test (mantis #8730). Programs which do use
libc and other linux targets have to be fixed in a similar
way until we properly fix everything by not exporting
any symbols at all from shared libraries by default (and
only those appearing in the "exports" section).
Finalisation does not work yet either for FPC-compiled
programs on linux/anything.
git-svn-id: trunk@10495 -
svn+ssh://svn.freepascal.org/FPC/svn/fpc/branches/resources
........
r9694 | michael | 2008-01-09 21:31:18 +0100 (Wed, 09 Jan 2008) | 1 line
* Initial check-in
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r9695 | michael | 2008-01-09 21:35:58 +0100 (Wed, 09 Jan 2008) | 1 line
* New version from Giulio Bernardi
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r9697 | michael | 2008-01-09 21:41:54 +0100 (Wed, 09 Jan 2008) | 1 line
* Patch from Giulio Bernardi with resource support
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r9698 | michael | 2008-01-09 21:46:33 +0100 (Wed, 09 Jan 2008) | 1 line
* Patch from Giulio Bernardi to add more resource testing
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r9699 | michael | 2008-01-09 21:57:26 +0100 (Wed, 09 Jan 2008) | 1 line
* New tool from Giulio Bernardi
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r9700 | michael | 2008-01-09 21:58:23 +0100 (Wed, 09 Jan 2008) | 1 line
* New tool from Giulio Bernardi
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r9701 | michael | 2008-01-09 22:01:54 +0100 (Wed, 09 Jan 2008) | 1 line
* Added fcl-res
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r9702 | michael | 2008-01-09 22:01:58 +0100 (Wed, 09 Jan 2008) | 1 line
* Added fcl-res
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r9703 | michael | 2008-01-10 08:54:26 +0100 (Thu, 10 Jan 2008) | 1 line
* Fixed double code
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r9704 | jonas | 2008-01-10 10:59:20 +0100 (Thu, 10 Jan 2008) | 2 lines
- removed duplicate code
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r9705 | jonas | 2008-01-10 11:25:21 +0100 (Thu, 10 Jan 2008) | 2 lines
+ added missing fcl-res dependencies
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r9706 | jonas | 2008-01-10 11:58:30 +0100 (Thu, 10 Jan 2008) | 2 lines
+ dependencies for fpintres and fpextres
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r9707 | yury | 2008-01-10 12:47:51 +0100 (Thu, 10 Jan 2008) | 3 lines
* Fixed compilation of resource, which is included in a unit located in different folder than main source.
* .res files must be copied to units output folder, otherwise .res files will not be found when only compiled units path is available and compiler does not know anything about sources folder.
* Improved resource related error messages.
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r9708 | michael | 2008-01-10 12:52:13 +0100 (Thu, 10 Jan 2008) | 1 line
* Removed double source after end.
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r9709 | michael | 2008-01-10 12:52:48 +0100 (Thu, 10 Jan 2008) | 1 line
* No longer needed
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r9710 | tom_at_work | 2008-01-10 22:09:08 +0100 (Thu, 10 Jan 2008) | 1 line
* properly align FPC_RESLOCATION so that linking does not fail on some architectures (e.g. ppc64)
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r9711 | tom_at_work | 2008-01-10 23:53:12 +0100 (Thu, 10 Jan 2008) | 1 line
* fix splitting of 64 bit load/stores from/to unaligned memory locations into multiple load/stores, which in some cases generated wrong code
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r9712 | michael | 2008-01-11 11:00:08 +0100 (Fri, 11 Jan 2008) | 1 line
* Fixed bug in BSS section on 64-bit platforms
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r9720 | giulio | 2008-01-12 10:02:04 +0100 (Sat, 12 Jan 2008) | 1 line
Updated fcl-res documentation: occurrences of reslib changed to fcl-res.
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r9740 | giulio | 2008-01-13 19:36:44 +0100 (Sun, 13 Jan 2008) | 3 lines
- Don't try to compile resources on systems with a non windows-like resource support.
- Don't add the .or file to the list of object files if resource compiling failed.
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r10201 | giulio | 2008-02-04 11:35:44 +0100 (Mon, 04 Feb 2008) | 5 lines
* resource compiling supported on OS/2 via wrc
* CompileResourceFiles and CollectResourceFiles don't do target-specific checks anymore
* refactored a bit
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r10389 | giulio | 2008-02-25 21:32:52 +0100 (Mon, 25 Feb 2008) | 2 lines
Deleted test file which was committed by mistake
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r10472 | giulio | 2008-03-10 12:22:18 +0100 (Mon, 10 Mar 2008) | 2 lines
changed define FPC_HAS_RESOURCES to FPC_HAS_WINLIKERESOURCES
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git-svn-id: trunk@10481 -
