dnl Process this file with autoconf to produce a configure script. AC_PREREQ(2.59) AC_INIT([usbip-utils], [2.0], [linux-usb@vger.kernel.org]) AC_DEFINE([USBIP_VERSION], [0x00000111], [binary-coded decimal version number]) CURRENT=0 REVISION=1 AGE=0 AC_SUBST([LIBUSBIP_VERSION], [$CURRENT:$REVISION:$AGE], [library version]) AC_CONFIG_SRCDIR([src/usbipd.c]) AC_CONFIG_HEADERS([config.h]) AM_INIT_AUTOMAKE([foreign]) LT_INIT # Silent build for automake >= 1.11 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) AC_SUBST([EXTRA_CFLAGS], ["-Wall -Werror -Wextra -std=gnu99"]) # Checks for programs. AC_PROG_CC AC_PROG_INSTALL AC_PROG_MAKE_SET # Checks for header files. AC_HEADER_DIRENT AC_HEADER_STDC AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h netinet/in.h stdint.h stdlib.h dnl string.h sys/socket.h syslog.h unistd.h]) # Checks for typedefs, structures, and compiler characteristics. AC_TYPE_INT32_T AC_TYPE_SIZE_T AC_TYPE_SSIZE_T AC_TYPE_UINT16_T AC_TYPE_UINT32_T AC_TYPE_UINT8_T # Checks for library functions. AC_FUNC_REALLOC AC_CHECK_FUNCS([memset mkdir regcomp socket strchr strerror strstr dnl strtoul]) AC_CHECK_HEADER([libudev.h], [AC_CHECK_LIB([udev], [udev_new], [LIBS="$LIBS -ludev"], [AC_MSG_ERROR([Missing udev library!])])], [AC_MSG_ERROR([Missing /usr/include/libudev.h])]) # Checks for libwrap library. AC_MSG_CHECKING([whether to use the libwrap (TCP wrappers) library]) AC_ARG_WITH([tcp-wrappers], [AS_HELP_STRING([--with-tcp-wrappers], [use the libwrap (TCP wrappers) library])], dnl [ACTION-IF-GIVEN] [if test "$withval" = "yes"; then AC_MSG_RESULT([yes]) AC_MSG_CHECKING([for hosts_access in -lwrap]) saved_LIBS="$LIBS" LIBS="-lwrap $saved_LIBS" AC_TRY_LINK( [int hosts_access(); int allow_severity, deny_severity;], [hosts_access()], [AC_MSG_RESULT([yes]); AC_DEFINE([HAVE_LIBWRAP], [1], [use tcp wrapper]) wrap_LIB="-lwrap"], [AC_MSG_RESULT([not found]); exit 1]) else AC_MSG_RESULT([no]); fi], dnl [ACTION-IF-NOT-GIVEN] [AC_MSG_RESULT([(default)]) AC_MSG_CHECKING([for hosts_access in -lwrap]) saved_LIBS="$LIBS" LIBS="-lwrap $saved_LIBS" AC_TRY_LINK( [int hosts_access(); int allow_severity, deny_severity;], [hosts_access()], [AC_MSG_RESULT([yes]); AC_DEFINE([HAVE_LIBWRAP], [1], [use tcp wrapper])], [AC_MSG_RESULT([no]); LIBS="$saved_LIBS"])]) # Sets directory containing usb.ids. AC_ARG_WITH([usbids-dir], [AS_HELP_STRING([--with-usbids-dir=DIR], [where usb.ids is found (default /usr/share/hwdata/)])], [USBIDS_DIR=$withval], [USBIDS_DIR="/usr/share/hwdata/"]) AC_SUBST([USBIDS_DIR]) # use _FORTIFY_SOURCE AC_MSG_CHECKING([whether to use fortify]) AC_ARG_WITH([fortify], [AS_HELP_STRING([--with-fortify], [use _FORTIFY_SROUCE option when compiling)])], dnl [ACTION-IF-GIVEN] [if test "$withval" = "yes"; then AC_MSG_RESULT([yes]) CFLAGS="$CFLAGS -D_FORTIFY_SOURCE -O" else AC_MSG_RESULT([no]) CFLAGS="$CFLAGS -U_FORTIFY_SOURCE" fi ], dnl [ACTION-IF-NOT-GIVEN] [AC_MSG_RESULT([default])]) AC_CONFIG_FILES([Makefile libsrc/Makefile src/Makefile]) AC_OUTPUT 25e92'/>
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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-02-01 17:45:02 +0000
committerIngo Molnar <mingo@kernel.org>2017-02-01 21:17:49 +0100
commitc8f325a59cfc718d13a50fbc746ed9b415c25e92 (patch)
treed53fbdac9d0781e39a13b2ac6b2bd258cf3b4140 /include/scsi/osd_initiator.h
parentbf29bddf0417a4783da3b24e8c9e017ac649326f (diff)
efi/fdt: Avoid FDT manipulation after ExitBootServices()
Some AArch64 UEFI implementations disable the MMU in ExitBootServices(), after which unaligned accesses to RAM are no longer supported. Commit: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") fixed an issue in the memory map handling of the stub FDT code, but inadvertently created an issue with such firmware, by moving some of the FDT manipulation to after the invocation of ExitBootServices(). Given that the stub's libfdt implementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/scsi/osd_initiator.h')