- fixed a platform modifier in ipc.pp
- fixed different layout sigaction record in libc. (field order)
- fixed many bad use_libc fixes in linux. Most of these were only checked
for compilation, not linking. (e.g. futex doesn't link)
git-svn-id: trunk@18042 -
* In Win32, reference TLS directory from SysInit units, allowing the module which needs TLS to be different from module which contains system unit.
* Don't write to TLS directory, as it can be placed into read-only memory.
git-svn-id: trunk@18028 -
* win/systhrd.inc: added error checking in several places. Fail with code 226 if resources cannot be allocated, as Delphi does.
* win/syswin.inc, Dll_entry: Don't call DoneThread in PROCESS_DETACH callback, it is redundant because the main thread is finalized by FPC_DO_EXIT. SysReleaseThreadVars is still necessary. Also removed redundant assignments to return value.
git-svn-id: trunk@17992 -
- removed assembler from SysRelocateThreadVars: never actually worked, and this file is shared between different CPUs - not a proper place for assembler anyway.
- Obtain handle of kernel32.dll using GetModuleHandle, allows to get rid of UnloadLibrary call.
git-svn-id: trunk@17975 -
- Completely removed DLL_PROCESS_DETACH callback for executables. Reason: 1) it is executed after RTL has been shut down and called ExitProcess(), at which point it is really not a good idea to do the cleanup. 2) In executable (in contrast with DLL) it is just fine to leave remaining resources alone and let OS reclaim them.
* Using 'cvar' for _tls_used and _tls_index to get proper prefixing without $ifdef's.
git-svn-id: trunk@17943 -
- Do not call DLL hooks from exe callback handler.
- Do not call SysInitMultitheading from DLL_THREAD_ATTACH handler, it may only be called from the main thread. See comments in syswin.inc for details. Reverts rev. 17892.
+ To guarantee that SysInitMultithreading is called from the main thread, assume executables always multithreaded, just like DLLs are.
- Also removed all checks with MainThreadIdWin32, except checks for double DLL_PROCESS_DETACH in DLLs. They duplicate what Windows already does (the main thread invokes only PROCESS_ATTACH/PROCESS_DETACH and never THREAD_ATTACH/THREAD_DETACH callbacks).
* Attempts to avoid double initialization/finalization (once in callback, second time in normal control flow).
* Net result: webtbs/tw2423 and webtbs/tw15530 fixed, webtbs/tw3661 broken (because heaptrc does not support checking pointers in TLS area, and with 'always multithreaded' apps the Output varible moves into TLS).
git-svn-id: trunk@17938 -
Used to support TlsCallbacks.
Tls callback code added inside
ifdef FPC_USE_TLS_DIRECTORY.
NOTE: This code needs compiler changes also to work.
* win/systhread.inc:
Exec_Tls_callback: Callback for main executable.
Several new external variables:
FreePascal_TLS_callback, FreePascal_end_of_TLS_callback
need to be placed into .CRT$XL* section,
using name '.section .CRT$XLFPC __FPC_tls_callbacks'
extension to be provided by compiler change.
tls_callbacks : pointer; external name '___crt_xl_start__';
tls_data_start : pointer; external name '___tls_start__';
tls_data_end : pointer; external name '___tls_end__';
provided by linker script.
tls_index : DWord that will contain the automatic
TlsIndex generated by executable launch code (not used by
FPC code, but might be used by code from loaded objects).
_tls_used: TTlsdirectory record.
* win32/system.pp and win64/system.pp:
Code to force loading of _tls_used record.
git-svn-id: trunk@17893 -
already smaller than the length of the first string (probably cannot
happen currently, but may be in the future as a result of optimizations)
git-svn-id: trunk@17886 -
* InternalExit: now calls new procedure SysFlushStdIO
* DoneThread: Also calls SysFlushStdIO to avoid loosing output
if standard files are redirected.
git-svn-id: trunk@17798 -
