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
