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The syscall parsers guarded by HAVE_SIGACTION check have to be compiled
regardless of libc sigaction function availability.
* configure.ac (AC_CHECK_FUNCS): Remove sigaction.
* signal.c: Remove HAVE_SIGACTION checks.
glibc, starting with commit glibc-2.24-28-gdbab657, has deprecated
inclusion of <sys/sysmacros.h> by <sys/types.h>. The method used
for deprecation breaks AC_HEADER_MAJOR: this autoconf macro no longer
defines MAJOR_IN_SYSMACROS, which consequently breaks build.
Let's assume that all systems supported by strace provide major, minor,
and makedev macros via <sys/sysmacros.h>.
* configure.ac (AC_HEADER_MAJOR): Remove.
* mknod.c [MAJOR_IN_SYSMACROS, MAJOR_IN_MKDEV]: Remove.
Include <sys/sysmacros.h> unconditionally.
* print_struct_stat.c: Likewise.
* tests/mknod.c: Likewise.
* tests/mknodat.c: Likewise.
* tests/xstatx.c: Likewise.
Assume that the check for struct stat.st_mtime_nsec is enough.
Likewise, do not check for struct stat.st_{a,c}tim.tv_nsec.
* configure.ac (AC_CHECK_MEMBERS): Remove struct stat.st_atime_nsec,
struct stat.st_ctime_nsec, struct stat.st_atim.tv_nsec,
and struct stat.st_ctim.tv_nsec.
* file.c (HAVE_STRUCT_STAT_ST_ATIME_NSEC,
HAVE_STRUCT_STAT_ST_CTIME_NSEC): Remove.
* printstat.h (HAVE_STRUCT_STAT_ST_ATIME_NSEC,
HAVE_STRUCT_STAT_ST_CTIME_NSEC): Replace with
HAVE_STRUCT_STAT_ST_MTIME_NSEC.
* tests/xstatx.c: Likewise.
As st_flags, st_fstype, and st_gen members of struct stat are not filled
by the kernel, there is no use supporting them.
* configure.ac (AC_CHECK_MEMBERS): Remove struct stat.st_flags,
struct stat.st_fstype, and struct stat.st_gen.
* file.c [STAT32_PERSONALITY, HAVE_STRUCT_STAT64]: Do not undefine
HAVE_STRUCT_STAT_ST_FLAGS, HAVE_STRUCT_STAT_ST_FSTYPE,
and HAVE_STRUCT_STAT_ST_GEN.
* printstat.h (DO_PRINTSTAT): Do not check for
HAVE_STRUCT_STAT_ST_FLAGS, HAVE_STRUCT_STAT_ST_FSTYPE,
and HAVE_STRUCT_STAT_ST_GEN.
Our test suite already assumes that struct stat contains st_blksize,
st_blocks, and st_rdev members, and there haven't been any complaints.
* configure.ac (AC_CHECK_MEMBERS): Remove struct stat.st_blksize,
struct stat.st_blocks, and struct stat.st_rdev.
* printstat.h (DO_PRINTSTAT): Do not check for
HAVE_STRUCT_STAT_ST_BLKSIZE, HAVE_STRUCT_STAT_ST_BLOCKS,
and HAVE_STRUCT_STAT_ST_RDEV.
The "syscall" syscall only exists on o32 and causes strace to error out on
64-bit mips ABIs. Pass MIPS_ABI from the configure script through to
nsyscalls.test so the MIPS ABI can be checked.
* configure.ac (MIPS_ABI): Substitute into output files.
* tests/Makefile.am (MIPS_ABI): Export via AM_TEST_LOG_FLAGS.
* tests/nsyscalls.test: Restrict special mips handling to mips o32.
Limit output of struct msghdr.msg_control when
struct msghdr.msg_controllen is greater than the maximum ancillary
buffer size specified in /proc/sys/net/core/optmem_max file.
* configure.ac (AC_CHECK_FUNCS): Add open64.
* defs.h (read_int_from_file): New prototype.
* util.c (read_int_from_file): New function.
* msghdr.c (get_optmem_max): New function based on read_int_from_file.
(decode_msg_control): Use it to check control_len argument.
* tests/msg_control.c (test_big_len): New function.
(main): Use it to test printing of excessively large messages.
* configure.ac (AC_CHECK_MEMBERS): Fix typo in the check for
struct btrfs_ioctl_defrag_range_args.start and
struct btrfs_ioctl_search_args_v2.buf_size.
* configure.ac (AC_CHECK_HEADERS): Remove linux/icmp.h.
* net.c: Follow the example of tests/net-icmp_filter.c and include
<linux/icmp.h> unconditionally.
Change make-dist to generate strace-*.tar.gz, strace.dsc,
and strace.spec in addition to strace-*.tar.xz.
* configure.ac (AM_INIT_AUTOMAKE): Remove no-dist-gzip.
* make-dsc: New file.
* make-dist: Use it.
* .gitignore: Add strace-*.tar.gz, strace.dsc, and strace.spec.
* git-version-gen: Replace '-' with '.' so version conforms to policies
* configure.ac (SPEC_VERSION): Remove.
* strace.spec.in: Replace SPEC_VERSION with PACKAGE_VERSION.
Remove %srcname.
Assume that sysctl enums defined since linux v2.6 are always defined,
with a signle exception: check for CTL_PROC which definition was removed
in v2.6.18 and restored later in v2.6.23.
* configure.ac (AC_CHECK_DECLS): Remove old constants.
* xlat/sysctl_kern.in: Mark constants older than KERN_PRINTK_RATELIMIT
as unconditional.
* xlat/sysctl_net.in: Mark constants older than NET_LLC
as unconditional.
* xlat/sysctl_net_core.in: Mark constants older than NET_CORE_BUDGET
as unconditional.
* xlat/sysctl_net_ipv4.in: Mark constants older than
NET_IPV4_IGMP_MAX_MSF as unconditional.
* xlat/sysctl_net_ipv4_conf.in: Mark constants older than
NET_IPV4_CONF_FORCE_IGMP_VERSION as unconditional.
* xlat/sysctl_net_ipv4_route.in: Mark constants older than
NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS as unconditional.
* xlat/sysctl_net_ipv6.in: Mark constants older than
NET_IPV6_MLD_MAX_MSF as unconditional.
* xlat/sysctl_net_ipv6_route.in: Mark constants older than
NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS as unconditional.
* xlat/sysctl_net_unix.in: Mark all constants as unconditional.
* xlat/sysctl_root.in: Mark constants older than CTL_ARLAN
as unconditional.
* xlat/sysctl_vm.in: Mark constants older than VM_MAX_MAP_COUNT
as unconditional.
* configure.ac (AC_CHECK_HEADERS): Add linux/fiemap.h.
* file_ioctl.c: Do not include <linux/fiemap.h> and xlat/fiemap_*.h
if [!HAVE_LINUX_FIEMAP_H].
(file_ioctl): Do not parse FS_IOC_FIEMAP if [!HAVE_LINUX_FIEMAP_H].
Prior to v2.6.25-rc3, <linux/videodev2.h> didn't include all
required headers, resulting to omission of V4L2_* constants.
This issue doesn't arise in v4l2.c and tests/ioctl_v4l2.c files
because they already include all necessary headers themselves.
* configure.ac (AC_CHECK_DECLS): Include <sys/time.h>, <linux/ioctl.h>,
and <linux/types.h> before <linux/videodev2.h>.
Since sys/ioctl.h is included unconditionally when needed
and ioctls.h doesn't exist, these checks are redundant.
* configure.ac (AC_CHECK_HEADERS): Remove ioctls.h and sys/ioctl.h.
Decode the ioctls associated with the userfaultfd fd.
Note that they tend to read from and also return result in it's data
structure.
* configure.ac (AC_CHECK_HEADERS): Add linux/userfaultfd.h.
* userfaultfd.c [HAVE_LINUX_USERFAULTFD_H]: Add ioctl decoder.
* defs.h (uffdio_ioctl): New prototype.
* ioctl.c (ioctl_decode) [HAVE_LINUX_USERFAULTFD_H]: Wire in
uffdio_ioctl.
* xlat/uffd_*.in: Create flag xlat for all the IOCTLs.
This header file was added in glibc-2.3.2,
so it's safe to assume its availability.
* configure.ac (AC_CHECK_HEADERS): Remove sys/epoll.h.
* epoll.c: Include <sys/epoll.h> unconditionally.
Compile [HAVE_SYS_EPOLL_H] code unconditionally.
* tests/epoll_ctl.c: Do not check for HAVE_SYS_EPOLL_H.
* tests/epoll_wait.c: Likewise.
* configure.ac: Sort and group together AC_PROG_*, AC_C_*, AC_TYPE_*,
AC_HEADER_*, AC_CHECK_FUNCS, AC_CHECK_TYPES, AC_CHECK_MEMBERS,
and AC_CHECK_HEADERS.
There are weird platforms that define __NR_sendmmsg but at the same time
do not define __NR_recvmmsg. Add a workaround for them.
* configure.ac (AC_CHECK_FUNCS): Add recvmmsg.
* tests/mmsg.c: Check for __NR_recvmmsg || HAVE_RECVMMSG.
Do not rely on "struct sigevent.__pad" being located at the same address
as "struct sigevent.sigev_notify_thread_id", it's not the case with musl
libc. Do not rely on struct sigevent definition at all to access
sigev_notify_thread_id.
* configure.ac (AC_CHECK_MEMBERS): Remove struct sigevent._sigev_un._pad
and struct sigevent.__pad.
* sigevent.h: New file.
* Makefile.am (strace_SOURCES): Add it.
* print_sigevent.c: Include it.
* print_sigevent.c (struct_sigevent): Remove.
(print_sigevent): Update all struct_sigevent users.
* tests/timer_create.c: Include "sigevent.h".
(main): Use struct_sigevent instead of struct sigevent,
all struct sigevent clients changed.
The size of off_t is not something one can rely upon. For example,
musl libc unconditionally defines it as an int64_t type on x86.
A cast to the target type helps to avoid these libc differences.
* configure.ac: Call AC_C_TYPEOF.
* tests/struct_flock.c (TYPEOF_FLOCK_OFF_T): New macro.
(test_flock_einval): Use it instead of off_t.
Before this change, all files that exist since 20th century had
copyright headers, while most files that appeared later didn't. This
change fixes the inconsistency by adding missing copyright headers.
It doesn't mean that copyright headers became maintained. In my view,
git history provides much better information on this subject and is much
more accurate than copyright headers.
