* Package:    dev-util/lttng-modules-2.10.6-r1
 * Repository: gentoo
 * Maintainer: dlan@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
 * Determining the location of the kernel source code
 * Found kernel source directory:
 *     /usr/src/linux
 * Found sources for kernel version:
 *     5.0.3
 * Checking for suitable kernel configuration options...
 [ ok ]
>>> Unpacking source...
>>> Unpacking lttng-modules-2.10.6.tar.bz2 to /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work
>>> Source unpacked in /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work
>>> Preparing source in /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6 ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6 ...
ln: failed to create symbolic link 'Module.symvers': File exists
 * Preparing  module
make -j1 HOSTCC=x86_64-pc-linux-gnu-gcc CROSS_COMPILE=x86_64-pc-linux-gnu- 'LDFLAGS=-m elf_x86_64' KERNELDIR=/usr/src/linux default 
make -C /usr/src/linux M=/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6 CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m modules
make[1]: Entering directory '/usr/src/linux-5.0.3'
  CC [M]  /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/ringbuffer/ring_buffer_backend.o
In file included from /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../wrapper/ringbuffer/backend.h:1,
                 from /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/ringbuffer/ring_buffer_backend.c:34:
/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_inatomic’:
/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../lib/ringbuffer/backend.h:305:48: error: macro "access_ok" passed 3 arguments, but takes just 2
  if (unlikely(!access_ok(VERIFY_READ, src, len)))
                                                ^
In file included from ./include/linux/export.h:45,
                 from ./include/linux/linkage.h:7,
                 from ./include/linux/kernel.h:7,
                 from ./include/linux/list.h:9,
                 from ./include/linux/module.h:9,
                 from /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/ringbuffer/ring_buffer_backend.c:22:
/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../lib/ringbuffer/backend.h:305:16: error: ‘access_ok’ undeclared (first use in this function)
  if (unlikely(!access_ok(VERIFY_READ, src, len)))
                ^~~~~~~~~
./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
 # define unlikely(x) __builtin_expect(!!(x), 0)
                                          ^
/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../lib/ringbuffer/backend.h:305:16: note: each undeclared identifier is reported only once for each function it appears in
  if (unlikely(!access_ok(VERIFY_READ, src, len)))
                ^~~~~~~~~
./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
 # define unlikely(x) __builtin_expect(!!(x), 0)
                                          ^
In file included from /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../wrapper/ringbuffer/backend.h:1,
                 from /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/ringbuffer/ring_buffer_backend.c:34:
/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_strcpy_from_user_inatomic’:
/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../lib/ringbuffer/backend.h:375:48: error: macro "access_ok" passed 3 arguments, but takes just 2
  if (unlikely(!access_ok(VERIFY_READ, src, len)))
                                                ^
In file included from ./include/linux/export.h:45,
                 from ./include/linux/linkage.h:7,
                 from ./include/linux/kernel.h:7,
                 from ./include/linux/list.h:9,
                 from ./include/linux/module.h:9,
                 from /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/ringbuffer/ring_buffer_backend.c:22:
/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../lib/ringbuffer/backend.h:375:16: error: ‘access_ok’ undeclared (first use in this function)
  if (unlikely(!access_ok(VERIFY_READ, src, len)))
                ^~~~~~~~~
./include/linux/compiler.h:77:42: note: in definition of macro ‘unlikely’
 # define unlikely(x) __builtin_expect(!!(x), 0)
                                          ^
In file included from /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../wrapper/ringbuffer/backend.h:1,
                 from /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/ringbuffer/ring_buffer_backend.c:34:
/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../lib/ringbuffer/backend.h: In function ‘lib_ring_buffer_copy_from_user_check_nofault’:
/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../lib/ringbuffer/backend.h:465:38: error: macro "access_ok" passed 3 arguments, but takes just 2
  if (!access_ok(VERIFY_READ, src, len))
                                      ^
/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/../lib/ringbuffer/backend.h:465:7: error: ‘access_ok’ undeclared (first use in this function)
  if (!access_ok(VERIFY_READ, src, len))
       ^~~~~~~~~
make[3]: *** [scripts/Makefile.build:277: /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib/ringbuffer/ring_buffer_backend.o] Error 1
make[2]: *** [scripts/Makefile.build:492: /var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6/lib] Error 2
make[1]: *** [Makefile:1553: _module_/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6] Error 2
make[1]: Leaving directory '/usr/src/linux-5.0.3'
make: *** [Makefile:111: modules] Error 2
 * ERROR: dev-util/lttng-modules-2.10.6-r1::gentoo failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of `emerge --info '=dev-util/lttng-modules-2.10.6-r1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-util/lttng-modules-2.10.6-r1::gentoo'`.
 * The complete build log is located at '/var/log/portage/dev-util:lttng-modules-2.10.6-r1:20190321-045014.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6'
 * S: '/var/tmp/portage/dev-util/lttng-modules-2.10.6-r1/work/lttng-modules-2.10.6'