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On Thursday 29 January 2004 02:34, H. Peter Anvin wrote: > If I remember correctly, a 6-argument system call on s390 will put a > pointer to the last two arguments as the effective 5th argument, so this > would not affect the system call calling convention, correct? Almost. I think this is only relevant for mmap2(), where we pass a single pointer to a struct with all six arguments, but the result is the same. I don't know where I got the misinformation about the register pairs on s390, but I verified that the problem exists on MIPS and PowerPC. See sys32_ftruncate64 in arch/mips/kernel/linux32.c and arch/ppc64/kernel/sys_ppc32.c. PA-RISC appearantly work around this by defining their own system call handlers with separate high/low arguments, so they effectively work like i386 and s390. Arnd <>< - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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