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Convert parsers of these syscalls to the same scheme as were applied to
parsers of other uid/gid related syscalls.
That is, define two sets of parsers on architectures that support
(either directly or via multiarch) 16-bit and 32-bit gid getgroups
and setgroups syscalls simultaneously, and reuse essentially the same
code by parametrizing uid_t and names of parser functions.
* groups.c: Remove.
(sys_getgroups, sys_setgroups): Move ...
* uid.c: ... here and parametrize their names.
* Makefile.am (strace_SOURCES): Remove groups.c.
* linux/syscall.h (sys_getgroups32, sys_setgroups32): Remove.
[NEED_UID16_PARSERS] (sys_getgroups16, sys_setgroups16): New prototypes.
* linux/arm/syscallent.h: Rename sys_[gs]etgroups to sys_[gs]etgroups16,
rename sys_[gs]etgroups32 to sys_[gs]etgroups.
* linux/bfin/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* tests/uid.c: Test for getgroups.
* tests/uid16.c: Likewise.
* tests/uid32.c: Test for getgroups32.
* tests/uid.awk: Test for getgroups/getgroups32 decoding.
* tests/uid.test: Trace getgroups/getgroups32 syscalls.
Define two sets of parsers on architectures that support (either
directly or via multiarch) 16-bit and 32-bit uid/gid syscalls
simultaneously. Since the code in these two sets is essentially
the same and the key difference between them is the size of uid_t,
implement it by parametrizing uid_t and names of parser functions.
* defs.h (NEED_UID16_PARSERS): New macro.
* linux/syscall.h [NEED_UID16_PARSERS] (sys_chown16, sys_fchown16,
sys_getresuid16, sys_getuid16, sys_setfsuid16, sys_setresuid16,
sys_setreuid16, sys_setuid16): New prototypes.
* linux/dummy.h (sys_geteuid16): Alias to sys_getuid16.
(sys_getegid16, sys_getgid16, sys_getresgid16, sys_setfsgid16,
sys_setgid16, sys_setregid16, sys_setresgid16): Alias to corresponding
sys_*uid16 functions.
* uid.c: Stop including <asm/posix_types.h>.
Parametrize uid_t and names of all exported functions.
(get_print_uid): New function.
(sys_getresuid): Use it.
(printuid): Check for (uid_t) -1.
* uid16.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* linux/arm/syscallent.h: Use sys_chown16, sys_fchown16, sys_getegid16,
sys_geteuid16, sys_getgid16, sys_getresgid16, sys_getresuid16,
sys_getuid16, sys_setfsgid16, sys_setfsuid16, sys_setgid16,
sys_setregid16, sys_setresgid16, sys_setresuid16, sys_setreuid16,
and sys_setuid16 parsers for *chown and [gs]et*[gu]id syscall entries.
* linux/bfin/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* tests/uid16.c: New file.
* tests/uid16.test: New test.
* tests/Makefile.am (CHECK_PROGRAMS): Add uid16.
(TESTS): Add uid16.test.
* tests/.gitignore: Add uid16.
Since parsers for setdomainname and sethostname syscalls are identical,
replace sys_setdomainname with an alias to sys_sethostname.
* linux/dummy.h (sys_setdomainname): Alias to sys_sethostname.
* linux/syscall.h (sys_setdomainname): Remove.
* process.c (sys_setdomainname): Remove.
Since parsers for getpeername and getsockname syscalls are identical,
replace sys_getpeername with an alias to sys_getsockname.
* linux/dummy.h (sys_getpeername): Alias to sys_getsockname.
* linux/syscall.h (sys_getpeername): Remove.
* net.c (sys_getpeername): Remove.
Since parsers for stime and time syscalls are identical,
replace sys_stime with an alias to sys_time.
* linux/dummy.h (sys_stime): Alias to sys_time.
* linux/syscall.h (sys_stime): Remove.
* time.c (sys_stime): Remove.
Special parsers for mkdir and mkdirat are redundant because
sys_chmod and sys_fchmodat implement the same decoding.
* file.c (decode_mkdir, sys_mkdir, sys_mkdirat): Remove.
* linux/dummy.h (sys_mkdir): Alias to sys_chmod.
(sys_mkdirat): Alias to sys_fchmodat.
* linux/syscall.h (sys_mkdir, sys_mkdirat): Remove.
* pathtrace.c (pathtrace_match): Do not check for sys_mkdirat.
* file.c (sync_file_range_flags): New xlat structure.
(sys_sync_file_range, sys_sync_file_range2): New functions.
* linux/syscall.h (sys_sync_file_range, sys_sync_file_range2): New
prototypes.
* linux/dummy.h (sys_sync_file_range, sys_sync_file_range2): Remove.
* linux/mips/syscallent-o32.h: Set the number of sync_file_range
arguments to 7.
The metag architecture also uses dedicated syscalls and doesn't need to
multiplex ipc and socket subcalls.
* linux/syscall.h [METAG]: Do not define SYS_socket_subcall and
SYS_ipc_subcall.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
The Xtensa architecture also uses dedicated syscalls and doesn't
need to multiplex ipc and socket subcalls.
* linux/syscall.h [XTENSA]: Do not define SYS_socket_subcall and
SYS_ipc_subcall.
Signed-off-by: Chris Zankel <chris@zankel.net>
The tile arch just has the dedicated syscalls, so disable
the logic for parsing subcalls.
* linux/syscall.h [TILE]: Do not define SYS_socket_subcall and
SYS_ipc_subcall.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
The Blackfin arch does not have a socketcall or ipc subcall
(it has dedicated syscalls broken out), so disable the logic for it.
* linux/syscall.h [BFIN]: Do not define SYS_socket_subcall and
SYS_ipc_subcall.
Previous code merges too many similar, but different ways
of decoding mmap. For example, sys_old_mmap is "params in memory"
API... except SH[64], where it is "params in regs",
i.e. what sys_mmap ("new mmap") function does on other arches!
It's much simpler when every mmap handler has same API regardless
of arch. Where API means whether params are in regs or in memory,
and whether offset is in bytes, pages, or 4k blocks.
Then we just insert correct function pointers into
arch syscall tables.
It turns out there are four common mmap APIs over
all architectures which exist in Linux kernel,
and one outlier for S390.
A number of mmap decoders were plain wrong in arch tables.
For example, BFIN has no old_mmap. It returns ENOSYS.
I checked kernel sources for all arches nad fixed the tables.
There was dead code for x86_64 for old_mmap:
x86_64 has no old_mmap.
* mem.c: Refactor mmap functions so that we have five mmap syscall
handlers, each with the fixed API (not varying by arch).
* pathtrace.c (pathtrace_match): Adjust sys_func == mmap_func checks.
* linux/syscall.h: Declare new mmap syscall handler functions.
* linux/arm/syscallent.h: mmap2 is sys_mmap_pgoff.
* linux/avr32/syscallent.h: mmap is sys_mmap_pgoff.
* linux/bfin/syscallent.h: old_mmap is ENOSYS, mmap2 is sys_mmap_pgoff.
* linux/hppa/syscallent.h: mmap2 is sys_mmap_4koff.
* linux/i386/syscallent.h: mmap2 is sys_mmap_pgoff.
* linux/ia64/syscallent.h: mmap2 is sys_mmap_pgoff.
* linux/m68k/syscallent.h: mmap2 is sys_mmap_pgoff.
* linux/microblaze/syscallent.h: old_mmap is sys_mmap, mmap2 is sys_mmap_pgoff.
* linux/mips/syscallent.h: mmap is sys_mmap_4kgoff.
* linux/or1k/syscallent.h: mmap2 is sys_mmap_pgoff.
* linux/powerpc/syscallent.h: mmap2 is sys_mmap_4kgoff.
* linux/s390/syscallent.h: mmap2 is sys_old_mmap_pgoff.
* linux/s390x/syscallent.h: mmap is sys_old_mmap and thus has 1 arg.
* linux/sh/syscallent.h: old_mmap2 is sys_mmap, mmap2 is sys_mmap_4koff.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent1.h: mmap is TD|TM.
* linux/tile/syscallent1.h: mmap2 is sys_mmap_4koff.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* Makefile.am (EXTRA_DIST): Add linux/x32/errnoent1.h,
linux/x32/ioctlent1.h, linux/x32/signalent1.h and
linux/x32/syscallent1.h.
* configure.ac: Remove AC_GNU_SOURCE, obsoleted by
AC_USE_SYSTEM_EXTENSIONS.
* defs.h (SUPPORTED_PERSONALITIES): Set to 2 for X32.
(PERSONALITY1_WORDSIZE): Set to 4 for X32.
* file.c (stat64): New struct for X32.
(sys_lseek32): New function for X32.
(stat64): Undef.
(sys_fstat64): Likewise.
(sys_stat64): Likewise.
(realprintstat64): New function for X32.
(sys_fstat64): Likewise.
(sys_stat64): Likewise.
* mem.c (sys_old_mmap): New function for X32.
* pathtrace.c (pathtrace_match): Also check sys_old_mmap for X32.
* syscall.c (update_personality): Add X32 support.
(get_scno): Support currpers == 1 for X32.
* linux/syscall.h (sys_lseek32): New function prototype for X32.
* linux/x32/errnoent1.h: New file.
* linux/x32/ioctlent1.h: Likewise.
* linux/x32/signalent1.h: Likewise.
* linux/x32/syscallent1.h: Likewise.
The files not mentioned in changelog below had only
copyright notices fixes and indentation fixes.
* defs.h: Include <stdint.h> and <inttypes.h>.
* file.c: Do not include <inttypes.h>.
Move struct kernel_dirent declaration below top include block.
* block.c: Do not include <stdint.h> and <inttypes.h>.
* quota.c: Likewise.
* desc.c: Likewise.
* signal.c: Likewise.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* linux/dummy.h (sys_rt_tgsigqueueinfo): Remove.
* linux/syscall.h (sys_rt_tgsigqueueinfo): New prototype.
* signal.c (print_sigqueueinfo): New function, based on
sys_rt_sigqueueinfo.
(sys_rt_sigqueueinfo): Use print_sigqueueinfo.
(sys_rt_tgsigqueueinfo): New function.
* linux/dummy.h (sys_sendmmsg): Remove.
* linux/syscall.h (sys_sendmmsg): New prototype.
* net.c (printmmsghdr): Add index argument specifying the element in
mmsghdr array to print.
(decode_mmsg): New function, prints the whole mmsghdr array, its length
and message flags.
(sys_sendmmsg): New function.
(sys_recvmmsg): Use decode_mmsg to fix mmsghdr array decoding.
* linux/dummy.h (sys_clock_adjtime): Remove.
* linux/syscall.h (sys_clock_adjtime): New prototype.
* time.c (do_adjtimex): New function, based on sys_adjtimex.
(sys_adjtimex): Use it.
(sys_clock_adjtime): New function.
* file.c: Include <sys/swap.h>.
(swap_flags): New xlat structure.
(sys_swapon): New function.
* linux/dummy.h (sys_swapon): Remove.
* linux/syscall.h (sys_swapon): New declaration.
* linux/syscall.h: Remove stray sys_swapon() declaration.
* linux/mips/syscallent.h: Include dummy.h with correct relative path.
* linux/dummy.h: Tweak one place where spaces are used instead of tabs.
* linux/dummy_check.sh: New script. It helps in finding stray syscall
handler declarations.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
text data bss dec hex filename
237384 672 19044 257100 3ec4c strace.before
236448 672 19044 256164 3e8a4 strace
* defs.h: Declare new functions printargs_lu(), printargs_ld()
which simply print syscall all args as unsigned or signed longs.
* desc.c (sys_epoll_create): Call printargs_ld() instead of open-coding it.
* linux/syscall.h: Remove declarations of the following functions:
sys_alarm, sys_getresgid, sys_getsid, sys_nice, sys_setgid, sys_setpgid,
sys_setpgrp, sys_setregid, sys_setresgid.
* process.c (sys_setgid): Delete this function: now aliased to sys_setuid().
(sys_getresgid): Delete this function: now aliased to sys_getresuid().
(sys_setregid): Delete this function: now aliased to sys_setreuid().
(sys_setresgid): Delete this function: now aliased to sys_setresuid().
(sys_setpgrp): Delete this function: now aliased to printargs_lu().
(sys_getsid): Likewise.
(sys_setpgid): Likewise.
(sys_alarm): Likewise.
(sys_getpgrp): Delete this function: was unused - was already shadowed
by a define in linux/dummy.h.
(sys_setsid): Likewise.
(sys_getpgid): Likewise.
* resource.c (sys_nice): Delete this function: now aliased to printargs_ld().
* linux/dummy.h: Define new aliases (see above for the list).
* syscall.c (printargs_lu): New function.
(printargs_ld): New function.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* linux/i386/syscallent.h: Remove native_scno initialization for clone,
fork and vfork.
* linux/ia64/syscallent.h (sys_fork, sys_vfork): Remove redirections
to printargs.
* linux/syscall.h [IA64]: Do not define SYS_fork and SYS_vfork.
* util.c (printcall) [IA64]: Likewise.
(setbpt): Use sys_func to check for clone, fork and vfork syscalls.
The native_scno field is not so much used in the code than before.
In many cases sys_func is checked instead, and for most of syscall
entries there is no need to initialize native_scno.
* linux/i386/syscallent.h: Remove native_scno initialization for
_exit, read, write, waitpid, execve, wait4, sysfs, readv, writev,
pread64, pwrite64, exit_group, waitid, send, recv, sendto and
recvfrom syscall entries.
* linux/syscall.h: Do not define no longer used SYS_waitid and
SYS_sub_* constants.
[IA64]: Do not define SYS_waitpid and SYS32_* constants.
* defs.h: Do not define no longer used __NR_exit_group constant.
* strace.c [USE_PROCFS] (proc_open): Use sys_func to check for execve.