d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
7402aad3c7
freebsd-dev/sys/conf/files.ia64
Konstantin Belousov aea810386d Implement mechanism to export some kernel timekeeping data to 
usermode, using shared page.  The structures and functions have vdso
prefix, to indicate the intended location of the code in some future.

The versioned per-algorithm data is exported in the format of struct
vdso_timehands, which mostly repeats the content of in-kernel struct
timehands. Usermode reading of the structure can be lockless.
Compatibility export for 32bit processes on 64bit host is also
provided. Kernel also provides usermode with indication about
currently used timecounter, so that libc can fall back to syscall if
configured timecounter is unknown to usermode code.

The shared data updates are initiated both from the tc_windup(), where
a fast task is queued to do the update, and from sysctl handlers which
change timecounter. A manual override switch
kern.timecounter.fast_gettime allows to turn off the mechanism.

Only x86 architectures export the real algorithm data, and there, only
for tsc timecounter. HPET counters page could be exported as well, but
I prefer to not further glue the kernel and libc ABI there until
proper vdso-based solution is developed.

Minimal stubs neccessary for non-x86 architectures to still compile
are provided.

Discussed with:	bde
Reviewed by:	jhb
Tested by:	flo
MFC after:	1 month
2012-06-22 07:06:40 +00:00

142 lines
5.9 KiB
Plaintext
Raw Blame History

# This file tells config what files go into building a kernel,
# files marked standard are always included.
#
# $FreeBSD$
#
# The long compile-with and dependency lines are required because of
# limitations in config: backslash-newline doesn't work in strings, and
# dependency lines other than the first are silently ignored.
#
#
font8x16.o optional std8x16font \
compile-with "uudecode < /usr/share/syscons/fonts/${STD8X16FONT}-8x16.fnt && file2c 'unsigned char font_16[16*256] = {' '};' < ${STD8X16FONT}-8x16 > font8x16.c && ${CC} -c ${CFLAGS} font8x16.c" \
no-implicit-rule before-depend \
clean "${STD8X16FONT}-8x16 font8x16.c"
#
atkbdmap.h optional atkbd_dflt_keymap \
compile-with "/usr/sbin/kbdcontrol -L ${ATKBD_DFLT_KEYMAP} | sed -e 's/^static keymap_t.* = /static keymap_t key_map = /' -e 's/^static accentmap_t.* = /static accentmap_t accent_map = /' > atkbdmap.h" \
no-obj no-implicit-rule before-depend \
clean "atkbdmap.h"
#
font.h optional sc_dflt_font \
compile-with "uudecode < /usr/share/syscons/fonts/${SC_DFLT_FONT}-8x16.fnt && file2c 'static u_char dflt_font_16[16*256] = {' '};' < ${SC_DFLT_FONT}-8x16 > font.h && uudecode < /usr/share/syscons/fonts/${SC_DFLT_FONT}-8x14.fnt && file2c 'static u_char dflt_font_14[14*256] = {' '};' < ${SC_DFLT_FONT}-8x14 >> font.h && uudecode < /usr/share/syscons/fonts/${SC_DFLT_FONT}-8x8.fnt && file2c 'static u_char dflt_font_8[8*256] = {' '};' < ${SC_DFLT_FONT}-8x8 >> font.h" \
no-obj no-implicit-rule before-depend \
clean "font.h ${SC_DFLT_FONT}-8x14 ${SC_DFLT_FONT}-8x16 ${SC_DFLT_FONT}-8x8"
#
ukbdmap.h optional ukbd_dflt_keymap \
compile-with "/usr/sbin/kbdcontrol -L ${UKBD_DFLT_KEYMAP} | sed -e 's/^static keymap_t.* = /static keymap_t key_map = /' -e 's/^static accentmap_t.* = /static accentmap_t accent_map = /' > ukbdmap.h" \
no-obj no-implicit-rule before-depend \
clean "ukbdmap.h"
#
cddl/contrib/opensolaris/common/atomic/ia64/opensolaris_atomic.S optional zfs compile-with "${ZFS_S}"
compat/freebsd32/freebsd32_ioctl.c optional compat_freebsd32
compat/freebsd32/freebsd32_misc.c optional compat_freebsd32
compat/freebsd32/freebsd32_syscalls.c optional compat_freebsd32
compat/freebsd32/freebsd32_sysent.c optional compat_freebsd32
compat/ia32/ia32_sysvec.c optional compat_freebsd32
contrib/ia64/libuwx/src/uwx_bstream.c standard
contrib/ia64/libuwx/src/uwx_context.c standard
contrib/ia64/libuwx/src/uwx_env.c standard
contrib/ia64/libuwx/src/uwx_scoreboard.c standard
contrib/ia64/libuwx/src/uwx_step.c standard
contrib/ia64/libuwx/src/uwx_str.c standard
contrib/ia64/libuwx/src/uwx_swap.c standard
contrib/ia64/libuwx/src/uwx_trace.c standard
contrib/ia64/libuwx/src/uwx_uinfo.c standard
contrib/ia64/libuwx/src/uwx_utable.c standard
crypto/blowfish/bf_enc.c optional crypto | ipsec
crypto/des/des_enc.c optional crypto | ipsec | netsmb
dev/atkbdc/atkbd.c optional atkbd atkbdc
dev/atkbdc/atkbd_atkbdc.c optional atkbd atkbdc
dev/atkbdc/atkbdc.c optional atkbdc
dev/atkbdc/atkbdc_isa.c optional atkbdc isa
dev/atkbdc/atkbdc_subr.c optional atkbdc
dev/atkbdc/psm.c optional psm atkbdc
dev/fb/fb.c optional fb | vga
dev/fb/vga.c optional vga
dev/hwpmc/hwpmc_ia64.c optional hwpmc
dev/io/iodev.c optional io
dev/kbd/kbd.c optional atkbd | sc | ukbd
dev/syscons/scterm-teken.c optional sc
dev/syscons/scvgarndr.c optional sc vga
dev/syscons/scvtb.c optional sc
dev/uart/uart_cpu_ia64.c optional uart
dev/acpica/acpi_if.m standard
ia64/acpica/OsdEnvironment.c optional acpi
ia64/acpica/acpi_machdep.c optional acpi
ia64/acpica/acpi_wakeup.c optional acpi
ia64/acpica/madt.c optional acpi
ia64/disasm/disasm_decode.c standard
ia64/disasm/disasm_extract.c standard
ia64/disasm/disasm_format.c standard
ia64/ia32/ia32_misc.c optional compat_freebsd32
ia64/ia32/ia32_reg.c optional compat_freebsd32
ia64/ia32/ia32_signal.c optional compat_freebsd32
ia64/ia32/ia32_trap.c optional compat_freebsd32
ia64/ia64/autoconf.c standard
ia64/ia64/bus_machdep.c standard
ia64/ia64/busdma_machdep.c standard
ia64/ia64/clock.c standard
ia64/ia64/context.S standard
ia64/ia64/db_machdep.c optional ddb
ia64/ia64/dump_machdep.c standard
ia64/ia64/efi.c standard
ia64/ia64/elf_machdep.c standard
ia64/ia64/emulate.c standard
ia64/ia64/exception.S standard
ia64/ia64/gdb_machdep.c optional gdb
ia64/ia64/highfp.c standard
ia64/ia64/in_cksum.c optional inet | inet6
ia64/ia64/interrupt.c standard
ia64/ia64/iodev_machdep.c optional io
ia64/ia64/locore.S standard no-obj
ia64/ia64/machdep.c standard
ia64/ia64/mca.c standard
ia64/ia64/mem.c optional mem
ia64/ia64/mp_locore.S optional smp
ia64/ia64/mp_machdep.c optional smp
ia64/ia64/nexus.c standard
ia64/ia64/pal.S standard
ia64/ia64/physical.S standard
ia64/ia64/pmap.c standard
ia64/ia64/ptrace_machdep.c standard
ia64/ia64/sal.c standard
ia64/ia64/sapic.c standard
ia64/ia64/setjmp.S standard
ia64/ia64/ssc.c optional ski
ia64/ia64/sscdisk.c optional ski
ia64/ia64/stack_machdep.c optional ddb | stack
ia64/ia64/support.S standard
ia64/ia64/sys_machdep.c standard
ia64/ia64/syscall.S standard
ia64/ia64/trap.c standard
ia64/ia64/uio_machdep.c standard
ia64/ia64/uma_machdep.c standard
ia64/ia64/unaligned.c standard
ia64/ia64/unwind.c standard
ia64/ia64/vm_machdep.c standard
ia64/isa/isa.c optional isa
ia64/isa/isa_dma.c optional isa
ia64/pci/pci_cfgreg.c optional pci
isa/syscons_isa.c optional sc
isa/vga_isa.c optional vga
kern/imgact_elf32.c optional compat_freebsd32
kern/kern_clocksource.c standard
libkern/bcmp.c standard
libkern/ffsl.c standard
libkern/fls.c standard
libkern/flsl.c standard
libkern/ia64/__divdi3.S standard
libkern/ia64/__divsi3.S standard
libkern/ia64/__moddi3.S standard
libkern/ia64/__modsi3.S standard
libkern/ia64/__udivdi3.S standard
libkern/ia64/__udivsi3.S standard
libkern/ia64/__umoddi3.S standard
libkern/ia64/__umodsi3.S standard
libkern/ia64/bswap16.S standard
libkern/ia64/bswap32.S standard
libkern/memmove.c standard
libkern/memset.c standard
kern/subr_dummy_vdso_tc.c standard
Reference in New Issue View Git Blame Copy Permalink