Messages in this thread | | | Subject | Re: [PATCH 22/23] sysctl arm: Remove binary sysctl support | From | (Eric W. Biederman) | Date | Sun, 08 Nov 2009 14:45:36 -0800 |
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Russell King <rmk+lkml@arm.linux.org.uk> writes:
> > NAK. Glibc uses these numeric sysctls to support ioperm emulation on ARM. > Therefore, removal of these numeric sysctls breaks that user interface: > > static int iobase_name[] = { CTL_BUS, BUS_ISA, BUS_ISA_PORT_BASE }; > static int ioshift_name[] = { CTL_BUS, BUS_ISA, BUS_ISA_PORT_SHIFT }; > if (! sysctl (iobase_name, 3, &io.io_base, &len, NULL, 0) > && ! sysctl (ioshift_name, 3, &io.shift, &len, NULL, 0)) > { > io.initdone = 1; > return 0; > }
Those still exist in sysctl_binary.c are provided by reading /proc/sys/bus/isa/membase, /proc/sys/bus/isa/portbase, and /proc/sys/bus/isa/portshift.
The practical difference is that /proc support now must be compiled in to support sys_sysctl.
Eric
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