Hello, many thanks, I will try it! I haven't compiled FPC for ppc64le myself so it can take a few days but I will let you know about the result.
Cheers, Tobias ---- On Mon, 26 Aug 2019 14:22:01 +0200 Florian Klämpfl <flor...@freepascal.org> wrote: > Am 26. August 2019 14:08:39 schrieb Sven Barth via fpc-pascal > <fpc-pascal@lists.freepascal.org>: > > > Florian Klämpfl <flor...@freepascal.org> schrieb am Mo., 26. Aug. 2019, > > 14:01: > > > >> Am 26. August 2019 00:59:16 schrieb tobiasgie...@gmail.com: > >> > >>> Hello, > >>> > >>> > >>> > >>> > >>> while examining a crash when running Lazarus on ppc64le, I found the > >>> following issue in function calls. > >>> > >>> > >>> > >>> > >>> Calls to functions with more than eight parameters seem to be > >>> implemented differently from how gcc does it in a C program. > >>> > >>> > >>> > >>> > >>> gcc uses the memory location 96(r1) for the ninth parameter, but FPC > >>> uses 112(r1). > >>> > >>> > >>> > >>> > >>> Therefore, calls to XGetWindowProperty crash. This function has 12 > >>> parameters. gcc puts the four last ones into 96(r1), 104(r1), 112(r1), > >> 120(r1), > >>> and FPC into 112(r1), 120(r1), 128(r1), 136(r1). > >>> > >>> > >>> > >>> > >>> What can be done about this? > >> > >> Try to change the 48 in fpc/compiler/powerpc64/cpupara.pas line to 32 as a > >> temporary test. > > > > Line 302 in case anyone is wondering (thankfully that's the only "48" in > > that fike (plus its preceeding comment) ^^') > > Indeed :-) If it works, it must be made dependent on the target ABI. > > > _______________________________________________ > fpc-pascal maillist - fpc-pascal@lists.freepascal.org > https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal Kind Regards, Tobias Giesen Super Flexible Software GmbH & Co. KG Buddenstr. 29-31 48143 Münster, Germany www.superflexible.com www.tgtools.com ----------------------------------------------------------- Registered at register court Münster as HRA 9716 Liability / general partner: TGTools GmbH Registered at register court Münster as HRB 17763 Directors: Tobias Giesen and Claudia Giesen _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
