I see that fpc source commit 4921be35
https://gitlab.com/freepascal.org/fpc/source/-/commit/4921be352392c32c401dd689de50980fdaa7b578 adds "some exception related tests that currently fail on aarch64-win64". I see no committed fixes in the history after that. My 3.3.1 compiler was built from the jan 10 sources (as a more recent revision failed to bootstrap). This 3.3.1 compiler fails a simple exception handling test on macOS, which previous compilers did handle.

[Mac-mini:~/fpc-test/simple-crashme] administrator% cat crashme2.pas

{$modeswitch exceptions}
program crashme2;
type
   pinteger = ^integer;
var
   p: pinteger;
begin
   try
     p := pinteger( 1234);
     p^ := 1
   except
     writeln
       ( 'the exception was catched')
   end

[Mac-mini:~/fpc-test/simple-crashme] administrator% /usr/local/lib/fpc/3.3.1/ppca64 crashme2.pas Free Pascal Compiler version 3.3.1 [2026/01/10] for aarch64 Copyright (c) 1993-2026 by Florian Klaempfl and others Target OS: Darwin for AArch64
Compiling crashme2.pas
Assembling (pipe) crashme2.s
Linking crashme2
-macosx_version_min has been renamed to -macos_version_min 16 lines compiled, 0.4 sec, 180224 bytes code, 98303 bytes data

[Mac-mini:~/fpc-test/simple-crashme] administrator% ./crashme2 Runtime error 216 at $0000000104EC36A8
$0000000104EC36A8
$0000000104EEB4CC
$0000000104EC35E0
$0000000104EC3638
$00000001820C7154
$4E35800000000000

[Mac-mini:~/fpc-test/simple-crashme] administrator% /usr/local/lib/fpc/3.2.4/ppca64 crashme2.pas Free Pascal Compiler version 3.2.4-rc1 [2025/10/15] for aarch64 Copyright (c) 1993-2024 by Florian Klaempfl and others Target OS: Darwin for AArch64
Compiling crashme2.pas
Assembling crashme2
Linking crashme2
ld: warning: -multiply_defined is obsolete
-macosx_version_min has been renamed to -macos_version_min 16 lines compiled, 0.1 sec

[Mac-mini:~/fpc-test/simple-crashme] administrator% ./crashme2 the exception was catched

[Mac-mini:~/fpc-test/simple-crashme] administrator% /usr/local/lib/fpc/3.0.4/ppcx64 crashme2.pas Free Pascal Compiler version 3.0.4 [2017/11/26] for x86_64 Copyright (c) 1993-2017 by Florian Klaempfl and others Target OS: Darwin for x86_64
Compiling crashme2.pas
Assembling (pipe) crashme2.s
Linking crashme2
ld: warning: -multiply_defined is obsolete
-macosx_version_min has been renamed to -macos_version_min ld: warning: support for macOS with 10.5 minimum deployment target is deprecated and will be removed in future release
ld: warning: building for macOS 10.5 is deprecated 16 lines compiled, 0.2 sec

[Mac-mini:~/fpc-test/simple-crashme] administrator% ./crashme2 the exception was catched

[Mac-mini:~] administrator% sw_vers
ProductName: macOS
ProductVersion: 14.7.4
BuildVersion: 23H420

Adriaan van Os via fpc-devel schrieb am
Do., 12. März 2026, 10:26:

Because I haven't yet found the time to merge the corresponding merge request.

My 3.3.1 compiler was built from the jan 10 sources (as a more recent

revision failed to bootstrap). This 3.3.1 compiler fails a simple exception handling test on macOS, which previous compilers did handle.

Then report it.

Regards,
Sven

I see an (overcomplicated) gitlab "work items list" but no way to report a bug there .... There is no add button (that I know of).

Bugzilla was perfect.

Regards,

Adriaan van Os

Op 12-3-2026 om 12:16 schreef Adriaan van Os via fpc-devel:

I see an (overcomplicated) gitlab "work items list" but no way to report a bug there .... There is no add button (that I know of).

Top right in blue "New Item".   I have dark mode enabled though, so the color might be difference

It might also only appear when you are logged in.

I found the cause to be in this crazy compiler commit https://gitlab.com/freepascal.org/fpc/source/-/work_items/38201which says that "If SysUtils is not included, run-time error should be raised regardless from the try..except block."

Regards,

Adriaan van Os