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* mount.c (sys_mount): Do not decode type and data strings for
MS_SHARED, MS_PRIVATE, MS_SLAVE, and MS_UNBINDABLE mount flags
that do not imply valid strings.
* configure.ac (AC_CHECK_FUNCS): Add inet_pton.
* net.c (print_mreq, print_mreq6): New functions.
(print_setsockopt): Use them to decode IP_ADD_MEMBERSHIP,
IP_DROP_MEMBERSHIP, IPV6_ADD_MEMBERSHIP, IPV6_DROP_MEMBERSHIP,
IPV6_JOIN_ANYCAST, and IPV6_LEAVE_ANYCAST.
* tests/ip_mreq.c: New file.
* tests/ip_mreq.expected: Likewise.
* tests/ip_mreq.test: New test.
* tests/Makefile.am (check_PROGRAMS): Add ip_mreq.
(TESTS): Add ip_mreq.test.
(EXTRA_DIST): ip_mreq.expected.
* tests/.gitignore: Add ip_mreq.
Based on patch by Ben Noordhuis <info@bnoordhuis.nl>.
Introduce wrappers to the following functions that do memory allocation:
malloc, calloc, realloc, strdup.
This commit is a follow-up to the related discussions in strace-devel ML:
http://sourceforge.net/p/strace/mailman/message/33618180/http://sourceforge.net/p/strace/mailman/message/33733470/
* defs.h (xmalloc, xcalloc, xreallocarray, xstrdup): New prototypes.
* xmalloc.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* count.c (count_syscall, call_summary_pers): Use xcalloc.
* desc.c (decode_select): Use xmalloc.
* dirent.c (sys_getdents, sys_getdents64): Likewise.
* net.c (sys_recvmmsg): Use xstrdup.
* pathtrace.c (storepath): Use xreallocarray.
(pathtrace_match): Use xmalloc.
* strace.c (die_out_of_memory): Move to xmalloc.c.
(expand_tcbtab): Use xcalloc and xreallocarray.
(startup_child): Use xstrdup.
(init): Use xmalloc, xcalloc, and xstrdup.
* syscall.c (reallocate_qual): Use xreallocarray.
(qualify): Use xstrdup.
* unwind.c (unwind_tcb_init): Use xmalloc.
(build_mmap_cache): Use xcalloc, xreallocarray, and xstrdup.
(get_symbol_name): Use xreallocarray.
(stacktrace_walk, queue_put): Use xmalloc.
* util.c (printstr): Use xmalloc.
* vsprintf.c (strace_vfprintf): Likewise.
Some ioctl constants are defined to different values on those 32-bit
architectures where structures containing a 64-bit field are aligned on
a 8-byte boundary and have a size multiple of 8 bytes, and on other
32-bit architectures.
* configure.ac: Check the size of a structure containing a 64-bit field.
* linux/32/ioctls_inc.h: Rename to ...
* linux/32/ioctls_inc_align32.h: ... this.
* linux/32/ioctls_inc_align64.h: New file.
* linux/32/ioctls_inc.h: Include either 32/ioctls_inc_align32.h
or ioctls_inc_align64.h depending on SIZEOF_STRUCT_I64_I32.
* Makefile.am (EXTRA_DIST): Add linux/32/ioctls_inc_align32.h and
* linux/32/ioctls_inc_align64.h.
* tests/ioctl.c (main): Test for VIDIOC_ENUMINPUT.
* tests/ioctl.expected: Check VIDIOC_ENUMINPUT decoding.
Reported-by: Philippe De Muyter <phdm@macqel.be>
This commit adds strace support for Altera's Nios-II. The architecture
is supported by Linux since v3.19, and it implements the generic syscall
ABI.
* configure.ac: Add nios2 support.
* cacheflush.c [NIOS2] (sys_cacheflush): New function.
* linux/nios2/*: New Nios-II specific files.
* Makefile.am (EXTRA_DIST): Add them.
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Fix bexecve.test when the executable being run does not match the
native architecture.
* tests/bexecve.test: Use "set_ptracer_any" instead of "sh".
Allow for a personality switch notification in the strace output.
Introduce SYS_FUNC macro to declare and define all syscall parsers.
* Makefile.am (BUILT_SOURCES, CLEANFILES): Add sys_func.h.
(sys_func.h): New rule.
* defs.h (SYS_FUNC_NAME, SYS_FUNC): New macros.
* linux/syscall.h: Include "sys_func.h".
[NEED_UID16_PARSERS]: Use SYS_FUNC to declare uid16 syscall parsers.
Remove other declarations.
* linux/alpha/syscallent.h (160, 161): Add sys_ prefix to osf_statfs
and osf_fstatfs syscall parsers.
* *.c: Use SYS_FUNC to define syscall parsers.
Some of our tests use GNU awk @include extension, but not all currently
used versions of GNU awk support it. Skip these tests if gawk does not
provide @include support.
* tests/init.sh (check_gawk): New function.
(match_awk): Use it.
The regular expression generated by umovestr2.c on systems with large
page size is too big for GNU grep. Rewrite the test to use diff
instead of grep.
* tests/umovestr2.test: Use match_diff instead of match_grep.
* tests/umovestr2.c (main): Convert output from regexp to plain text.
* defs.h (get_pagesize): New prototype.
* mem.c (get_pagesize) Make global.
* util.c (PAGMASK): Remove.
(vm_read_mem): New process_vm_readv proxy function.
(umoven, umovestr): Use it.
(umovestr): Read chunks up to pagesize at a time.
process_vm_readv() and ptrace(PTRACE_PEEKDATA) have inconsistent access
control rules wrt traced processes: process_vm_readv() is more likely to
fail with EPERM than ptrace(PTRACE_PEEKDATA) when tracing a process that
has execve'd a privileged executable.
* util.c (umoven, umovestr): If process_vm_readv returned EPERM,
fall back to ptrace(PTRACE_PEEKDATA).
Reported-by: Andrew Guertin <lists@dolphinling.net>
Define macros for gcc attributes that are already in use
or going to be used soon.
* defs.h (GNUC_PREREQ, ATTRIBUTE_NORETURN, ATTRIBUTE_FORMAT,
ATTRIBUTE_ALIGNED, ATTRIBUTE_PACKED, ATTRIBUTE_MALLOC,
ATTRIBUTE_NOINLINE, ATTRIBUTE_ALLOC_SIZE): New macros.
Fix a compilation failure with musl libc.
* evdev.c: Include <linux/ioctl.h>.
* ioctl.c: Include <linux/ioctl.h> instead of <asm/ioctl.h>.
* ioctlsort.c: Likewise.
Reported-by: Dima Krasner <dima@dimakrasner.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
* printsiginfo.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* defs.h (printsiginfo): Change second argument's type from int to bool.
* signal.c: Stop defining siginfo_t related constants.
Move inclusion of xlat/sig*_codes.h files to printsiginfo.c
(printsigsource, printsigval, printsiginfo_at): Move to printsiginfo.c.
(printsiginfo): Change second argument's type from int to bool,
split, and move to printsiginfo.c.
Personality 1 for sparc and sparc64 appears to be an old attempt
to support stracing Solaris binaries.
It stalled after the only syscall, solaris_open, was covered:
all other solaris_foo's are printargs.
This change deletes personality 1. Now sparc is an one-personality
arch, and sparc64 is a two-personality one.
For clarity, pure renaming of personality 2 files to personality 1 for sparc64
is performed in the next commit - this prevents a state where syscallent1.h
seems to indergo a lot of changes, where in fact in is deleted, and then
replaced by syscallent2.h
Therefore, tree at this commit will not build.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Starting with commit v4.10-25-g8497b62,
arm$ ./strace true
pid 1234 stray syscall exit
Segmentation fault
Fix this by updating ARM syscall sanity check.
In particular, get_scno() should not set TCB_INSYSCALL flag because
other code assumes that s_ent is properly initialized when this flag
is set.
* linux/arm/get_scno.c: Check syscall number after fetching.
Do not apply the check to SCNO_IN_RANGE syscalls.
Do not set TCB_INSYSCALL flag.
Extend diagnostics and move it to debug level.
Split code that use arch-specific registers to separate arch files.
* sigreturn.c (sys_sigreturn): Move arch-specific code
to linux/*/arch_sigreturn.c, include "arch_sigreturn.c".
* linux/arch_sigreturn.c: New file.
* Makefile.am (EXTRA_DIST): Add linux/arch_sigreturn.c
and linux/*/arch_sigreturn.c files.
Split code that use arch-specific registers to separate arch files.
* syscall.c: Move definitions of variables containing fetched registers
to linux/*/arch_regs.c files.
[HAVE_GETRVAL2] (getrval2): Move arch-specific code
to linux/*/arch_getrval2.c, include "arch_getrval2.c".
(print_pc): Move arch-specific code to linux/*/print_pc.c files,
include "print_pc.c".
[X86_64] (x86_64_getregs_old): Rename to getregs_old, move to
linux/x86_64/getregs_old.c, include "getregs_old.c".
[POWERPC] (powerpc_getregs_old): Rename to getregs_old, move to
linux/powerpc/getregs_old.c, include "getregs_old.c".
(get_regs) [X86_64, POWERPC]: Update callers.
(get_scno): Move arch-specific code to linux/*/get_scno.c,
include "get_scno.c".
(get_syscall_args): Move arch-specific code
to linux/*/get_syscall_args.c, include "get_syscall_args.c".
(get_error): Move arch-specific code to linux/*/get_error.c,
include "get_error.c".
(get_syscall_result): Move arch-specific code
to linux/*/get_syscall_result.c, include "get_syscall_result.c".
* Makefile.am (EXTRA_DIST): Add new linux/*/*.c files.
Starting with commit v4.10-25-g8497b62, get_scno() can be called outside
trace_syscall_entering(), so move the get_regs_error check from
trace_syscall_entering() to get_scno().
* syscall.c (trace_syscall_entering): Move get_regs_error check ...
(get_scno): ... here.
