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0642f14552
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Author SHA1 Message Date
Nikolay Nikolov
0642f14552 * WebAssembly threads internal linker: declare the symbol __wasm_init_tls in the 
.text section (function will be generated later by the linker)
 2024-08-10 19:59:11 +03:00
Nikolay Nikolov
a87481cfa4 * WebAssembly threads internal linker: declare the __tls_base, __tls_size and 
__tls_align symbols in the internal linker script if threads are enabled
 2024-08-10 19:50:48 +03:00
Nikolay Nikolov
961042356c * WebAssembly threads internal linker: fix validation of R_WASM_GLOBAL_INDEX_LEB relocations in modules that support threads 2024-08-10 19:43:52 +03:00
Nikolay Nikolov
610f2bb3c9 + enable FPC_WASM_THREADS_INTERNAL_LINKER (not stable, yet) in ppcwasm32.lpi 2024-08-10 19:24:49 +03:00
Nikolay Nikolov
34025aecac + enable WebAssembly threads with the internal linker (which still doesn't work 
with threads) if FPC is compiled with the FPC_WASM_THREADS_INTERNAL_LINKER
  define
 2024-08-10 19:23:10 +03:00
Michaël Van Canneyt
780c1f9c49 * Reduce number of warnings and hints 2024-08-09 17:59:45 +02:00
Michaël Van Canneyt
92f937c40e * Implement DropContext/KeepContext for Delphi compatibility. Patch by Artem Izmaylov. Fixes issue #40884 2024-08-09 10:46:38 +02:00
Michaël Van Canneyt
c53e1b20d7 * Make sure sentences end on point when needed. 2024-08-09 10:38:53 +02:00
Michaël Van Canneyt
8702fc416b * Do not load font config if it is already loaded 2024-08-09 10:33:05 +02:00
Michaël Van Canneyt
abf04f1086 * Use correct class to construct dictionary in callback helper 2024-08-09 10:24:13 +02:00
Michaël Van Canneyt
258211e038 * Fix wrong raise statement 2024-08-09 09:55:02 +02:00
florian
d4816d12f7 * Risc-V 32 has also a GC variant 2024-08-08 22:58:47 +02:00
Michaël Van Canneyt
594b96e305 * Add CopyToMemory 2024-08-08 17:36:16 +02:00
Michaël Van Canneyt
025ad39ef0 * Do not raise exception 2024-08-08 10:15:45 +02:00
Michaël Van Canneyt
a81eac2483 * Correct dictionary construction 2024-08-08 09:59:40 +02:00
Michaël Van Canneyt
37c32a9eb7 * Explicitly specify path to include files 2024-08-08 09:59:40 +02:00
Michaël Van Canneyt
22c978c33f * Print clickable URL with start location 2024-08-08 09:59:40 +02:00
florian
1ecc880fc8 + cpu type RV64GC 2024-08-07 22:53:10 +02:00
Nikolay Nikolov
af5c2d66c2 * removed TODO comment from WasiThreadSwitch 2024-08-07 18:26:19 +03:00
Nikolay Nikolov
5d058258fc + added some more comments in wasi_thread_start 2024-08-07 18:19:35 +03:00
Nikolay Nikolov
a0e1dce1fd * WebAssembly threads: call fpc_wasm32_init_tls from inline asm code to avoid 
race condition in branchful exceptions mode
 2024-08-07 18:17:38 +03:00
Nikolay Nikolov
fcfce9f2d5 * WebAssembly threads: implement WasiEndThread using exceptions. There's no 
other way to end a thread in WebAssembly, except by ending the thread
  procedure. Therefore, the only way to implement WasiEndThread is to have it
  raise an exception and handle it at the outermost level. This, of course,
  requires one of the WebAssembly exception modes to be turned on, in order for
  this to work.
 2024-08-07 17:58:11 +03:00
Nikolay Nikolov
e03389c6a8 * WebAssembly threads: destroy the event and mutex in WasiBeginThread in case wasi_thread_spawn fails 2024-08-07 17:06:03 +03:00
Nikolay Nikolov
77d592221a * WebAssembly threads: use New and Dispose instead of GetMem/FreeMem for allocating/freeing TWasmThread 2024-08-07 16:46:13 +03:00
Nikolay Nikolov
f23cc9ec6d * WebAssembly threads: free the stack block and TLS block in case wasi_thread_spawn fails 2024-08-07 16:44:44 +03:00
florian
e6ba09aedd + Risc-V 64: tcpuparamanager.get_saved_registers_int and tcpuparamanager.get_saved_registers_fpu 2024-08-06 22:56:35 +02:00
Michaël Van Canneyt
d0b03c9c71 * Correct callback handler for object tree 2024-08-06 09:32:00 +02:00
Michaël Van Canneyt
25af7a4281 * Export get_object_tree 2024-08-06 09:32:00 +02:00
Michaël Van Canneyt
45ec51dc1f * Install error handler to examine exceptions during callback 2024-08-06 09:00:11 +02:00
Nikolay Nikolov
9e0b2869a3 * WebAssembly threads: disable stack checking for the FPCWasmThreadStartPascal procedure 2024-08-06 07:07:41 +03:00
Nikolay Nikolov
9d771396ff + WebAssembly threads: init StackBottom (used for stack checking) more precisely 
when starting a new thread. Precision is not that important for the stack
  checking itself, because it uses a stack margin of 16kb, so the previous
  value, set by InitThread is good enough, however it's easy to do it precisely,
  since we allocate the stack and pass a pointer to it in TWasmThread, so why
  not?
 2024-08-06 07:01:28 +03:00
Nikolay Nikolov
da59711442 * WebAssembly threads: pass the stack size to InitThread when starting a new thread 2024-08-06 06:40:33 +03:00
Nikolay Nikolov
8bbb28ace8 + WASI: enable the generic stack checking 2024-08-06 05:00:14 +03:00
Nikolay Nikolov
68f4191119 + WASI: set StackBottom on startup 2024-08-06 04:02:15 +03:00
Nikolay Nikolov
60bb6c19d9 + WASI: set StackLength on startup 2024-08-06 03:55:52 +03:00
Nikolay Nikolov
b340994e1b * proper implementation for the function Sptr (which returns the stack pointer) for WebAssembly 2024-08-06 03:16:41 +03:00
florian
23dec631f5 + Risc-V: apply OptPass1OP to more operations 2024-08-05 22:37:59 +02:00
florian
3e6cd16bb5 + Risc-V 32: tcpuparamanager.get_saved_registers_int 2024-08-05 22:37:18 +02:00
Nikolay Nikolov
3c027b0ba0 * WebAssembly threads: use the stack size, specified for the main thread (via 
the $M directive, or the '-Cs' compiler option) as the default stack size for
  other spawned threads
 2024-08-05 01:59:13 +03:00
Nikolay Nikolov
a417b0db9b * WebAssembly threads: simplified (optimized) the implementation of 
TWasmRTLEvent, so it doesn't use a Mutex. Use atomic operations instead.
 2024-08-05 00:31:27 +03:00
florian
4afb07cc5e + Risc-V 32: tcpuparamanager.get_saved_registers_fpu 2024-08-04 23:03:44 +02:00
Nikolay Nikolov
74a4550ff0 * WebAssembly threads: fix TThread.WaitFor (use -1 instead of 0 to signal infinite timeout) 2024-08-04 21:09:18 +03:00
Nikolay Nikolov
6be3a42a2f * WebAssembly: optimized SysOSAlloc to use memory area left at the end of the 
page (64kb). This reduces memory use, when SysOSAlloc is called with sizes,
  smaller than 64kb.
 2024-08-04 18:04:10 +03:00
Michaël Van Canneyt
a0c11becde * Small fix in saveobject 2024-08-04 12:02:05 +02:00
Nikolay Nikolov
801f902efe * WebAssembly threads: fix threadvars with the new WASI-threads implementation 2024-08-04 05:50:06 +03:00
Nikolay Nikolov
aaf536ae10 * WebAssembly: allow specifying the initial and max memory size via the $M 
directive
 2024-08-04 04:11:10 +03:00
Nikolay Nikolov
7681c192db * WebAssembly threads: protect SysOSAlloc against race conditions via a critical section 2024-08-04 03:15:31 +03:00
Nikolay Nikolov
9cf31e2bb3 + show a message and automatically switch to external linking if WebAssembly multithreading is enabled 2024-08-04 02:55:34 +03:00
Nikolay Nikolov
31bb06ac87 + WebAssembly threads: initial implementation of the WASI threads proposal: 
https://github.com/WebAssembly/wasi-threads

  Note that the WASI folk have already declared this proposal 'obsolete' and
  only intended to be used for engines that support WASI v0.1. On the other
  hand, the WASI v0.2 threads proposal is an early draft and not implemented
  anywhere, so we have no choice, but to stay with v0.1 at this time, or give up
  on multithreading for who knows how long it would take for the v0.2 spec to be
  completed.

  Regarding the WASI v0.1 engines that implement WASI threads correctly and can
  be used with Free Pascal, I've discovered only one that works:

    https://github.com/bytecodealliance/wasm-micro-runtime/tree/main

  Wasmtime claims to support multithreading since version 15, however it doesn't
  seem to work. I tested all versions until the 23.0.1, and none of them works.

  Caveat: using the internal linker is not yet supported with WebAssembly and
  multithreading. Please use the external linker (the -Xe option), if you want
  to give this new feature a try.
 2024-08-04 02:24:20 +03:00
Nikolay Nikolov
bb93b918a5 * WebAssembly threads: don't check for GetThreadState(MyThread)<>tsRunning in 
LockMutexTimeoutWait and LockMutexTimeoutNoWait
 2024-08-04 01:56:25 +03:00