1999-02-19 03:21:36 +03:00
/*
* Copyright ( c ) 1991 , 1992 Paul Kranenburg < pk @ cs . few . eur . nl >
* Copyright ( c ) 1993 Branko Lankester < branko @ hacktic . nl >
* Copyright ( c ) 1993 , 1994 , 1995 , 1996 Rick Sladkey < jrs @ world . std . com >
* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* 1. Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer .
* 2. Redistributions in binary form must reproduce the above copyright
* notice , this list of conditions and the following disclaimer in the
* documentation and / or other materials provided with the distribution .
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission .
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ` ` AS IS ' ' AND ANY EXPRESS OR
* IMPLIED WARRANTIES , INCLUDING , BUT NOT LIMITED TO , THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED .
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT , INDIRECT ,
* INCIDENTAL , SPECIAL , EXEMPLARY , OR CONSEQUENTIAL DAMAGES ( INCLUDING , BUT
* NOT LIMITED TO , PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES ; LOSS OF USE ,
* DATA , OR PROFITS ; OR BUSINESS INTERRUPTION ) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY , WHETHER IN CONTRACT , STRICT LIABILITY , OR TORT
* ( INCLUDING NEGLIGENCE OR OTHERWISE ) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE , EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE .
*/
2005-02-02 07:44:57 +03:00
# ifdef HAVE_CONFIG_H
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# include "config.h"
2005-02-02 07:44:57 +03:00
# endif
2013-05-07 12:03:41 +04:00
Tidy up order of includes; make bool variables explicit.
Bool variables are more compact in data and (on x86) on code too:
text data bss dec hex filename
237950 676 19044 257670 3ee86 strace.before
237838 676 19012 257526 3edf6 strace
* defs.h: Group library includes at the top of the file.
Rename dtime to Tflag, debug to debug_flag.
Change debug_flag,Tflag,qflag,not_failing_only,show_fd_path,tracing_paths
variable declarations from int to bool.
* strace.c: Change corresponding definitions. Do the same for static
variables iflag,rflag,print_pid_pfx.
Rename dtime to Tflag, debug to debug_flag.
* syscall.c: Rename dtime to Tflag, debug to debug_flag.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-15 15:49:52 +04:00
# include <features.h>
2012-03-16 15:02:22 +04:00
# ifdef HAVE_STDBOOL_H
# include <stdbool.h>
# endif
# include <stdint.h>
# include <inttypes.h>
Tidy up order of includes; make bool variables explicit.
Bool variables are more compact in data and (on x86) on code too:
text data bss dec hex filename
237950 676 19044 257670 3ee86 strace.before
237838 676 19012 257526 3edf6 strace
* defs.h: Group library includes at the top of the file.
Rename dtime to Tflag, debug to debug_flag.
Change debug_flag,Tflag,qflag,not_failing_only,show_fd_path,tracing_paths
variable declarations from int to bool.
* strace.c: Change corresponding definitions. Do the same for static
variables iflag,rflag,print_pid_pfx.
Rename dtime to Tflag, debug to debug_flag.
* syscall.c: Rename dtime to Tflag, debug to debug_flag.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-15 15:49:52 +04:00
# include <sys/types.h>
2012-03-16 15:02:22 +04:00
# ifdef STDC_HEADERS
# include <stddef.h>
# endif
Tidy up order of includes; make bool variables explicit.
Bool variables are more compact in data and (on x86) on code too:
text data bss dec hex filename
237950 676 19044 257670 3ee86 strace.before
237838 676 19012 257526 3edf6 strace
* defs.h: Group library includes at the top of the file.
Rename dtime to Tflag, debug to debug_flag.
Change debug_flag,Tflag,qflag,not_failing_only,show_fd_path,tracing_paths
variable declarations from int to bool.
* strace.c: Change corresponding definitions. Do the same for static
variables iflag,rflag,print_pid_pfx.
Rename dtime to Tflag, debug to debug_flag.
* syscall.c: Rename dtime to Tflag, debug to debug_flag.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-15 15:49:52 +04:00
# include <unistd.h>
# include <stdlib.h>
# include <stdio.h>
2013-03-07 02:44:23 +04:00
/* Open-coding isprint(ch) et al proved more efficient than calling
* generalized libc interface . We don ' t * want * to do non - ASCII anyway .
*/
/* #include <ctype.h> */
Tidy up order of includes; make bool variables explicit.
Bool variables are more compact in data and (on x86) on code too:
text data bss dec hex filename
237950 676 19044 257670 3ee86 strace.before
237838 676 19012 257526 3edf6 strace
* defs.h: Group library includes at the top of the file.
Rename dtime to Tflag, debug to debug_flag.
Change debug_flag,Tflag,qflag,not_failing_only,show_fd_path,tracing_paths
variable declarations from int to bool.
* strace.c: Change corresponding definitions. Do the same for static
variables iflag,rflag,print_pid_pfx.
Rename dtime to Tflag, debug to debug_flag.
* syscall.c: Rename dtime to Tflag, debug to debug_flag.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-15 15:49:52 +04:00
# include <string.h>
2012-03-16 15:02:22 +04:00
# include <errno.h>
# include <signal.h>
Tidy up order of includes; make bool variables explicit.
Bool variables are more compact in data and (on x86) on code too:
text data bss dec hex filename
237950 676 19044 257670 3ee86 strace.before
237838 676 19012 257526 3edf6 strace
* defs.h: Group library includes at the top of the file.
Rename dtime to Tflag, debug to debug_flag.
Change debug_flag,Tflag,qflag,not_failing_only,show_fd_path,tracing_paths
variable declarations from int to bool.
* strace.c: Change corresponding definitions. Do the same for static
variables iflag,rflag,print_pid_pfx.
Rename dtime to Tflag, debug to debug_flag.
* syscall.c: Rename dtime to Tflag, debug to debug_flag.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-15 15:49:52 +04:00
# include <time.h>
# include <sys/time.h>
# include <sys/syscall.h>
2003-01-14 12:46:18 +03:00
2012-03-15 18:02:49 +04:00
# ifndef HAVE_STRERROR
const char * strerror ( int ) ;
# endif
# ifndef HAVE_STPCPY
/* Some libc have stpcpy, some don't. Sigh...
* Roll our private implementation . . .
*/
# undef stpcpy
# define stpcpy strace_stpcpy
extern char * stpcpy ( char * dst , const char * src ) ;
# endif
# if !defined __GNUC__
# define __attribute__(x) /*nothing*/
# endif
2012-03-21 17:39:22 +04:00
# ifndef offsetof
# define offsetof(type, member) \
( ( ( char * ) & ( ( ( type * ) NULL ) - > member ) ) - ( ( char * ) ( type * ) NULL ) )
# endif
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# define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
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/* macros */
# ifndef MAX
# define MAX(a, b) (((a) > (b)) ? (a) : (b))
# endif
# ifndef MIN
# define MIN(a, b) (((a) < (b)) ? (a) : (b))
# endif
# define CLAMP(val, min, max) MIN(MAX(min, val), max)
2012-03-23 14:29:01 +04:00
/* Glibc has an efficient macro for sigemptyset
* ( it just does one or two assignments of 0 to internal vector of longs ) .
*/
# if defined(__GLIBC__) && defined(__sigemptyset) && !defined(sigemptyset)
# define sigemptyset __sigemptyset
# endif
Set saner MAX_ARGS (6 or 8) for X86_64 and I386
I noticed that tcp->u_args[MAX_ARGS] array is way larger than
I'd expect: for all arches except HPPA it has 32 (!) elements.
I looked at the code and so far I spotted only one abuser of
this fact: sys_sigreturn. On several arches, it saves sigset_t
into tcp->u_args[1...N] on entry and prints it on exit, a-la
memcpy(&tcp->u_arg[1], &sc.oldmask[0], sizeof(sigset_t))
The problem here is that in glibc sigset_t is insanely large:
128 bytes, and using sizeof(sigset_t) in memcpy will overrun
&tcp->u_args[1] even with MAX_ARGS == 32:
On 32 bits, sizeof(tcp->u_args) == 32*4 == 128 bytes!
We may already have a bug there!
This commit changes the code to save NSIG / 8 bytes only.
NSIG can't ever be > 256, and in practice is <= 129,
thus NSIG / 8 is <= 16 bytes == 4 32-bit words,
and even MAX_ARGS == 5 should be enough for saving signal masks.
* defs.h: Reduce MAX_ARGS for X86_64 and I386 from 32 to 8
for FreeBSD and to 6 for everyone else. Add comment about current
state of needed MAX_ARGS.
* signal.c: Add comment about size of sigset_t.
(sprintsigmask): Reduce static string buffer from 8k to 2k.
(sys_sigreturn): Fix sigset saving to save only NSIG / 8 bytes,
not sizeof(sigset_t) bytes.
* linux/mips/syscallent.h: Reduce nargs of printargs-type syscall to 7.
* linux/arm/syscallent.h: Reduce nargs of printargs-type syscall to 6.
* linux/i386/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/s390x/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2011-08-19 19:41:28 +04:00
/* Configuration section */
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# ifndef DEFAULT_STRLEN
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/* default maximum # of bytes printed in `printstr', change with -s switch */
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# define DEFAULT_STRLEN 32
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# endif
# ifndef DEFAULT_ACOLUMN
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# define DEFAULT_ACOLUMN 40 /* default alignment column for results */
1999-02-19 03:21:36 +03:00
# endif
Tidy up order of includes; make bool variables explicit.
Bool variables are more compact in data and (on x86) on code too:
text data bss dec hex filename
237950 676 19044 257670 3ee86 strace.before
237838 676 19012 257526 3edf6 strace
* defs.h: Group library includes at the top of the file.
Rename dtime to Tflag, debug to debug_flag.
Change debug_flag,Tflag,qflag,not_failing_only,show_fd_path,tracing_paths
variable declarations from int to bool.
* strace.c: Change corresponding definitions. Do the same for static
variables iflag,rflag,print_pid_pfx.
Rename dtime to Tflag, debug to debug_flag.
* syscall.c: Rename dtime to Tflag, debug to debug_flag.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-15 15:49:52 +04:00
/*
* Maximum number of args to a syscall .
Set saner MAX_ARGS (6 or 8) for X86_64 and I386
I noticed that tcp->u_args[MAX_ARGS] array is way larger than
I'd expect: for all arches except HPPA it has 32 (!) elements.
I looked at the code and so far I spotted only one abuser of
this fact: sys_sigreturn. On several arches, it saves sigset_t
into tcp->u_args[1...N] on entry and prints it on exit, a-la
memcpy(&tcp->u_arg[1], &sc.oldmask[0], sizeof(sigset_t))
The problem here is that in glibc sigset_t is insanely large:
128 bytes, and using sizeof(sigset_t) in memcpy will overrun
&tcp->u_args[1] even with MAX_ARGS == 32:
On 32 bits, sizeof(tcp->u_args) == 32*4 == 128 bytes!
We may already have a bug there!
This commit changes the code to save NSIG / 8 bytes only.
NSIG can't ever be > 256, and in practice is <= 129,
thus NSIG / 8 is <= 16 bytes == 4 32-bit words,
and even MAX_ARGS == 5 should be enough for saving signal masks.
* defs.h: Reduce MAX_ARGS for X86_64 and I386 from 32 to 8
for FreeBSD and to 6 for everyone else. Add comment about current
state of needed MAX_ARGS.
* signal.c: Add comment about size of sigset_t.
(sprintsigmask): Reduce static string buffer from 8k to 2k.
(sys_sigreturn): Fix sigset saving to save only NSIG / 8 bytes,
not sizeof(sigset_t) bytes.
* linux/mips/syscallent.h: Reduce nargs of printargs-type syscall to 7.
* linux/arm/syscallent.h: Reduce nargs of printargs-type syscall to 6.
* linux/i386/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/s390x/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2011-08-19 19:41:28 +04:00
*
2012-02-25 18:19:02 +04:00
* Make sure that all entries in all syscallent . h files have nargs < = MAX_ARGS !
2013-05-07 12:03:41 +04:00
* linux / < ARCH > / syscallent * . h :
* all have nargs < = 6 except mips o32 which has nargs < = 7.
Set saner MAX_ARGS (6 or 8) for X86_64 and I386
I noticed that tcp->u_args[MAX_ARGS] array is way larger than
I'd expect: for all arches except HPPA it has 32 (!) elements.
I looked at the code and so far I spotted only one abuser of
this fact: sys_sigreturn. On several arches, it saves sigset_t
into tcp->u_args[1...N] on entry and prints it on exit, a-la
memcpy(&tcp->u_arg[1], &sc.oldmask[0], sizeof(sigset_t))
The problem here is that in glibc sigset_t is insanely large:
128 bytes, and using sizeof(sigset_t) in memcpy will overrun
&tcp->u_args[1] even with MAX_ARGS == 32:
On 32 bits, sizeof(tcp->u_args) == 32*4 == 128 bytes!
We may already have a bug there!
This commit changes the code to save NSIG / 8 bytes only.
NSIG can't ever be > 256, and in practice is <= 129,
thus NSIG / 8 is <= 16 bytes == 4 32-bit words,
and even MAX_ARGS == 5 should be enough for saving signal masks.
* defs.h: Reduce MAX_ARGS for X86_64 and I386 from 32 to 8
for FreeBSD and to 6 for everyone else. Add comment about current
state of needed MAX_ARGS.
* signal.c: Add comment about size of sigset_t.
(sprintsigmask): Reduce static string buffer from 8k to 2k.
(sys_sigreturn): Fix sigset saving to save only NSIG / 8 bytes,
not sizeof(sigset_t) bytes.
* linux/mips/syscallent.h: Reduce nargs of printargs-type syscall to 7.
* linux/arm/syscallent.h: Reduce nargs of printargs-type syscall to 6.
* linux/i386/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/s390x/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2011-08-19 19:41:28 +04:00
*/
1999-02-19 03:21:36 +03:00
# ifndef MAX_ARGS
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# ifdef LINUX_MIPSO32
# define MAX_ARGS 7
# else
# define MAX_ARGS 6
# endif
1999-02-19 03:21:36 +03:00
# endif
Tidy up order of includes; make bool variables explicit.
Bool variables are more compact in data and (on x86) on code too:
text data bss dec hex filename
237950 676 19044 257670 3ee86 strace.before
237838 676 19012 257526 3edf6 strace
* defs.h: Group library includes at the top of the file.
Rename dtime to Tflag, debug to debug_flag.
Change debug_flag,Tflag,qflag,not_failing_only,show_fd_path,tracing_paths
variable declarations from int to bool.
* strace.c: Change corresponding definitions. Do the same for static
variables iflag,rflag,print_pid_pfx.
Rename dtime to Tflag, debug to debug_flag.
* syscall.c: Rename dtime to Tflag, debug to debug_flag.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-15 15:49:52 +04:00
/* default sorting method for call profiling */
1999-02-19 03:21:36 +03:00
# ifndef DEFAULT_SORTBY
Tidy up order of includes; make bool variables explicit.
Bool variables are more compact in data and (on x86) on code too:
text data bss dec hex filename
237950 676 19044 257670 3ee86 strace.before
237838 676 19012 257526 3edf6 strace
* defs.h: Group library includes at the top of the file.
Rename dtime to Tflag, debug to debug_flag.
Change debug_flag,Tflag,qflag,not_failing_only,show_fd_path,tracing_paths
variable declarations from int to bool.
* strace.c: Change corresponding definitions. Do the same for static
variables iflag,rflag,print_pid_pfx.
Rename dtime to Tflag, debug to debug_flag.
* syscall.c: Rename dtime to Tflag, debug to debug_flag.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-15 15:49:52 +04:00
# define DEFAULT_SORTBY "time"
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# endif
2013-02-12 15:50:10 +04:00
/*
* Experimental code using PTRACE_SEIZE can be enabled here .
2013-02-12 14:43:46 +04:00
* This needs Linux kernel 3.4 . x or later to work .
*/
# define USE_SEIZE 1
2013-02-26 15:00:34 +04:00
/* To force NOMMU build, set to 1 */
2013-02-19 18:30:12 +04:00
# define NOMMU_SYSTEM 0
2013-07-16 14:18:59 +04:00
/*
* Set to 1 to use speed - optimized vfprintf implementation .
* It results in strace using about 5 % less CPU in user space
* ( compared to glibc version ) .
* But strace spends a lot of time in kernel space ,
* so overall it does not appear to be a significant win .
* Thus disabled by default .
*/
# define USE_CUSTOM_PRINTF 0
2013-02-19 18:30:12 +04:00
2013-07-01 01:53:49 +04:00
# ifndef ERESTARTSYS
# define ERESTARTSYS 512
# endif
# ifndef ERESTARTNOINTR
# define ERESTARTNOINTR 513
# endif
# ifndef ERESTARTNOHAND
# define ERESTARTNOHAND 514
# endif
# ifndef ERESTART_RESTARTBLOCK
# define ERESTART_RESTARTBLOCK 516
# endif
2013-02-12 14:43:46 +04:00
# if defined(SPARC) || defined(SPARC64)
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# define PERSONALITY0_WORDSIZE 4
# define PERSONALITY1_WORDSIZE 4
# if defined(SPARC64)
# define SUPPORTED_PERSONALITIES 3
# define PERSONALITY2_WORDSIZE 8
# else
# define SUPPORTED_PERSONALITIES 2
# endif /* SPARC64 */
2013-02-12 14:43:46 +04:00
# endif /* SPARC[64] */
1999-02-19 03:21:36 +03:00
2002-09-23 19:41:01 +04:00
# ifdef X86_64
Add x32 support to strace
X32 support is added to Linux kernel 3.4. In a nutshell, x32 is x86-64 with
32bit pointers. At system call level, x32 is also identical to x86-64,
as shown by many changes like "defined(X86_64) || defined(X32)". The
main differerence bewteen x32 and x86-64 is off_t in x32 is long long
instead of long.
This patch adds x32 support to strace. Tested on Linux/x32.
* configure.ac: Support X32.
* defs.h: Set SUPPORTED_PERSONALITIES to 3 for X86_64,
Set PERSONALITY2_WORDSIZE to 4 for X86_64.
Add tcb::ext_arg for X32.
* file.c (stat): New for X32.
(sys_lseek): Use 64-bit version for X32.
(printstat64): Check current_personality != 1 for X86_64.
* ipc.c (indirect_ipccall): Check current_personality == 1
for X86_64.
* mem.c (sys_mmap64): Also use tcp->u_arg for X32. Print NULL
for zero address. Call printllval for offset for X32.
* pathtrace.c (pathtrace_match): Don't check sys_old_mmap for
X32.
* process.c (ARG_FLAGS): Defined for X32.
(ARG_STACK): Likewise.
(ARG_PTID): Likewise.
(change_syscall): Handle X32.
(struct_user_offsets): Support X32.
(sys_arch_prctl): Likewise.
* signal.c: Include <asm/sigcontext.h> for X32.
(SA_RESTORER): Also define for X32.
* syscall.c (update_personality): Support X32 for X86_64.
(is_restart_error): Likewise.
(syscall_fixup_on_sysenter): Likewise.
(get_syscall_args): Likewise.
(get_syscall_result): Likewise.
(get_error): Likewise.
(__X32_SYSCALL_BIT): Define if not defined.
(__X32_SYSCALL_MASK): Likewise.
(get_scno): Check DS register value for X32. Use
__X32_SYSCALL_MASK on X32 system calls.
* util.c (printllval): Use ext_arg for X32.
(printcall): Support X32.
(change_syscall): Likewise.
(arg0_offset): Likewise.
(arg1_offset): Likewise.
* Makefile.am (EXTRA_DIST): Add linux/x32/errnoent.h,
linux/x32/ioctlent.h.in, linux/x32/signalent.h,
linux/x32/syscallent.h, linux/x86_64/errnoent2.h,
linux/x86_64/ioctlent2.h, linux/x86_64/signalent2.h and
linux/x86_64/syscallent2.h.
* linux/x32/errnoent.h: New.
* linux/x32/ioctlent.h.in: Likewise.
* linux/x32/signalent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/errnoent2.h: Likewise.
* linux/x86_64/ioctlent2.h: Likewise.
* linux/x86_64/signalent2.h: Likewise.
* linux/x86_64/syscallent2.h: Likewise.
Signed-off-by: H.J. Lu <hongjiu.lu@intel.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-04-16 15:00:01 +04:00
# define SUPPORTED_PERSONALITIES 3
2012-02-25 05:42:32 +04:00
# define PERSONALITY0_WORDSIZE 8
# define PERSONALITY1_WORDSIZE 4
Add x32 support to strace
X32 support is added to Linux kernel 3.4. In a nutshell, x32 is x86-64 with
32bit pointers. At system call level, x32 is also identical to x86-64,
as shown by many changes like "defined(X86_64) || defined(X32)". The
main differerence bewteen x32 and x86-64 is off_t in x32 is long long
instead of long.
This patch adds x32 support to strace. Tested on Linux/x32.
* configure.ac: Support X32.
* defs.h: Set SUPPORTED_PERSONALITIES to 3 for X86_64,
Set PERSONALITY2_WORDSIZE to 4 for X86_64.
Add tcb::ext_arg for X32.
* file.c (stat): New for X32.
(sys_lseek): Use 64-bit version for X32.
(printstat64): Check current_personality != 1 for X86_64.
* ipc.c (indirect_ipccall): Check current_personality == 1
for X86_64.
* mem.c (sys_mmap64): Also use tcp->u_arg for X32. Print NULL
for zero address. Call printllval for offset for X32.
* pathtrace.c (pathtrace_match): Don't check sys_old_mmap for
X32.
* process.c (ARG_FLAGS): Defined for X32.
(ARG_STACK): Likewise.
(ARG_PTID): Likewise.
(change_syscall): Handle X32.
(struct_user_offsets): Support X32.
(sys_arch_prctl): Likewise.
* signal.c: Include <asm/sigcontext.h> for X32.
(SA_RESTORER): Also define for X32.
* syscall.c (update_personality): Support X32 for X86_64.
(is_restart_error): Likewise.
(syscall_fixup_on_sysenter): Likewise.
(get_syscall_args): Likewise.
(get_syscall_result): Likewise.
(get_error): Likewise.
(__X32_SYSCALL_BIT): Define if not defined.
(__X32_SYSCALL_MASK): Likewise.
(get_scno): Check DS register value for X32. Use
__X32_SYSCALL_MASK on X32 system calls.
* util.c (printllval): Use ext_arg for X32.
(printcall): Support X32.
(change_syscall): Likewise.
(arg0_offset): Likewise.
(arg1_offset): Likewise.
* Makefile.am (EXTRA_DIST): Add linux/x32/errnoent.h,
linux/x32/ioctlent.h.in, linux/x32/signalent.h,
linux/x32/syscallent.h, linux/x86_64/errnoent2.h,
linux/x86_64/ioctlent2.h, linux/x86_64/signalent2.h and
linux/x86_64/syscallent2.h.
* linux/x32/errnoent.h: New.
* linux/x32/ioctlent.h.in: Likewise.
* linux/x32/signalent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/errnoent2.h: Likewise.
* linux/x86_64/ioctlent2.h: Likewise.
* linux/x86_64/signalent2.h: Likewise.
* linux/x86_64/syscallent2.h: Likewise.
Signed-off-by: H.J. Lu <hongjiu.lu@intel.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-04-16 15:00:01 +04:00
# define PERSONALITY2_WORDSIZE 4
2002-12-18 07:16:10 +03:00
# endif
2012-04-17 22:05:04 +04:00
# ifdef X32
# define SUPPORTED_PERSONALITIES 2
# define PERSONALITY0_WORDSIZE 4
# define PERSONALITY1_WORDSIZE 4
# endif
2002-12-18 07:16:10 +03:00
2008-05-20 05:35:55 +04:00
# ifdef ARM
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/* one personality */
2008-05-20 05:35:55 +04:00
# endif
2012-11-10 15:24:48 +04:00
# ifdef AARCH64
/* The existing ARM personality, then AArch64 */
# define SUPPORTED_PERSONALITIES 2
# define PERSONALITY0_WORDSIZE 4
# define PERSONALITY1_WORDSIZE 8
# define DEFAULT_PERSONALITY 1
# endif
2010-07-12 23:39:57 +04:00
# ifdef POWERPC64
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# define SUPPORTED_PERSONALITIES 2
# define PERSONALITY0_WORDSIZE 8
# define PERSONALITY1_WORDSIZE 4
2010-07-12 23:39:57 +04:00
# endif
Add tilegx support to strace
tilegx support has been in the kernel since 3.0.
In addition, fix some issues with the tilepro support already
present in strace, primarily the decision to use the
<asm/unistd.h> numbering space for system calls.
* defs.h [TILE]: Include <asm/ptrace.h> and provide an extern
struct pt_regs tile_regs for efficiency. Provide compat 32-bit
personality via SUPPORTED_PERSONALITIES, PERSONALITY0_WORDSIZE,
PERSONALITY1_WORDSIZE, and DEFAULT_PERSONALITY.
* linux/tile/errnoent1.h: New file, includes linux/errnoent.h.
* linux/tile/ioctlent1.h: New file, includes linux/ioctlent.h.
* linux/tile/signalent1.h: New file, includes linux/signalent.h.
* linux/tile/syscallent.h: Update with new asm-generic syscalls.
The version previously committed was the from the first tile patch
to LKML, which subsequently was changed to use <asm-generic/unistd.h>.
* linux/tile/syscallent1.h: Copy from linux/tile/syscallent.h.
* mem.c (addtileflags) [TILE]: use %ld properly for a "long" variable.
* process.c [TILE]: Choose clone arguments correctly and properly
suppress all "struct user" related offsets in user_struct_offsets.
* signal.c [TILE]: Use tile_regs not upeek.
* syscall.c (update_personality) [TILE]: Print mode.
(PT_FLAGS_COMPAT) [TILE]: Provide if not in system headers.
(tile_regs) [TILE]: Define 'struct pt_regs' variable to hold state.
(get_regs) [TILE]: use PTRACE_GETREGS to set tile_regs rather than using upeek.
(get_scno) [TILE]: Set personality.
(get_syscall_args) [TILE]: Use tile_regs.
(get_syscall_result) [TILE]: Update tile_regs.
(get_error) [TILE]: Use tile_regs.
(printcall) [TILE]: Print pc.
(arg0_offset, arg1_offset, restore_arg0, restore_arg1) [TILE]:
Properly handle tile call semantics and support tilegx.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-02-05 20:48:33 +04:00
# ifdef TILE
# define SUPPORTED_PERSONALITIES 2
# define PERSONALITY0_WORDSIZE 8
# define PERSONALITY1_WORDSIZE 4
# ifdef __tilepro__
# define DEFAULT_PERSONALITY 1
# endif
# endif
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# ifndef SUPPORTED_PERSONALITIES
# define SUPPORTED_PERSONALITIES 1
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# endif
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# ifndef DEFAULT_PERSONALITY
# define DEFAULT_PERSONALITY 0
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# endif
2013-02-12 14:43:46 +04:00
# ifndef PERSONALITY0_WORDSIZE
2014-05-02 17:15:41 +04:00
# define PERSONALITY0_WORDSIZE SIZEOF_LONG
2012-02-25 05:42:32 +04:00
# endif
2012-01-29 05:01:44 +04:00
2013-02-22 16:26:10 +04:00
typedef struct sysent {
2013-02-21 19:13:47 +04:00
unsigned nargs ;
int sys_flags ;
int ( * sys_func ) ( ) ;
const char * sys_name ;
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} struct_sysent ;
2013-02-21 19:13:47 +04:00
2013-02-22 16:26:10 +04:00
typedef struct ioctlent {
2013-02-21 19:13:47 +04:00
const char * symbol ;
ioctl: assume that all ioctl commands have unsigned int type
In linux, ioctl command number has a 32-bit unsigned integer type:
fs/ioctl.c:SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
If the kernel completely ignores other bits on 64-bit architectures,
why should strace care?
Let's follow the kernel and treat it as unsigned int.
* defs.h (struct_ioctlent): Change "code" type to "unsigned int".
(ioctl_decode, ioctl_lookup, block_ioctl, loop_ioctl, mtd_ioctl,
ubi_ioctl, ptp_ioctl, scsi_ioctl, sock_ioctl, term_ioctl, rtc_ioctl,
v4l2_ioctl): Likewise.
* ioctl.c (ioctl_decode, ioctl_lookup, compare, ioctl_next_match):
Likewise.
* block.c (block_ioctl): Likewise.
* loop.c (loop_ioctl): Likewise.
* mtd.c (mtd_ioctl, ubi_ioctl): Likewise.
* ptp.c (ptp_ioctl): Likewise.
* scsi.c (scsi_ioctl): Likewise.
* sock.c (sock_ioctl): Likewise.
* term.c (term_ioctl): Likewise.
* time.c (rtc_ioctl): Likewise.
* v4l2.c (v4l2_ioctl): Likewise.
* ioctlsort.c (struct ioctlent, compare, main): Likewise.
2015-01-19 21:44:21 +03:00
unsigned int code ;
2013-02-22 16:26:10 +04:00
} struct_ioctlent ;
2013-02-21 19:13:47 +04:00
1999-02-19 03:21:36 +03:00
/* Trace Control Block */
struct tcb {
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int flags ; /* See below for TCB_ values */
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int pid ; /* If 0, this tcb is free */
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int qual_flg ; /* qual_flags[scno] or DEFAULT_QUAL_FLAGS + RAW */
2011-08-25 02:25:08 +04:00
int u_error ; /* Error code */
long scno ; /* System call number */
1999-02-19 03:21:36 +03:00
long u_arg [ MAX_ARGS ] ; /* System call arguments */
Add x32 support to strace
X32 support is added to Linux kernel 3.4. In a nutshell, x32 is x86-64 with
32bit pointers. At system call level, x32 is also identical to x86-64,
as shown by many changes like "defined(X86_64) || defined(X32)". The
main differerence bewteen x32 and x86-64 is off_t in x32 is long long
instead of long.
This patch adds x32 support to strace. Tested on Linux/x32.
* configure.ac: Support X32.
* defs.h: Set SUPPORTED_PERSONALITIES to 3 for X86_64,
Set PERSONALITY2_WORDSIZE to 4 for X86_64.
Add tcb::ext_arg for X32.
* file.c (stat): New for X32.
(sys_lseek): Use 64-bit version for X32.
(printstat64): Check current_personality != 1 for X86_64.
* ipc.c (indirect_ipccall): Check current_personality == 1
for X86_64.
* mem.c (sys_mmap64): Also use tcp->u_arg for X32. Print NULL
for zero address. Call printllval for offset for X32.
* pathtrace.c (pathtrace_match): Don't check sys_old_mmap for
X32.
* process.c (ARG_FLAGS): Defined for X32.
(ARG_STACK): Likewise.
(ARG_PTID): Likewise.
(change_syscall): Handle X32.
(struct_user_offsets): Support X32.
(sys_arch_prctl): Likewise.
* signal.c: Include <asm/sigcontext.h> for X32.
(SA_RESTORER): Also define for X32.
* syscall.c (update_personality): Support X32 for X86_64.
(is_restart_error): Likewise.
(syscall_fixup_on_sysenter): Likewise.
(get_syscall_args): Likewise.
(get_syscall_result): Likewise.
(get_error): Likewise.
(__X32_SYSCALL_BIT): Define if not defined.
(__X32_SYSCALL_MASK): Likewise.
(get_scno): Check DS register value for X32. Use
__X32_SYSCALL_MASK on X32 system calls.
* util.c (printllval): Use ext_arg for X32.
(printcall): Support X32.
(change_syscall): Likewise.
(arg0_offset): Likewise.
(arg1_offset): Likewise.
* Makefile.am (EXTRA_DIST): Add linux/x32/errnoent.h,
linux/x32/ioctlent.h.in, linux/x32/signalent.h,
linux/x32/syscallent.h, linux/x86_64/errnoent2.h,
linux/x86_64/ioctlent2.h, linux/x86_64/signalent2.h and
linux/x86_64/syscallent2.h.
* linux/x32/errnoent.h: New.
* linux/x32/ioctlent.h.in: Likewise.
* linux/x32/signalent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/errnoent2.h: Likewise.
* linux/x86_64/ioctlent2.h: Likewise.
* linux/x86_64/signalent2.h: Likewise.
* linux/x86_64/syscallent2.h: Likewise.
Signed-off-by: H.J. Lu <hongjiu.lu@intel.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-04-16 15:00:01 +04:00
# if defined(LINUX_MIPSN32) || defined(X32)
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long long ext_arg [ MAX_ARGS ] ;
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long long u_lrval ; /* long long return value */
# endif
2013-02-12 14:43:46 +04:00
long u_rval ; /* Return value */
2011-12-23 04:50:49 +04:00
# if SUPPORTED_PERSONALITIES > 1
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unsigned int currpers ; /* Personality at the time of scno update */
2011-12-23 04:50:49 +04:00
# endif
2009-10-27 18:27:13 +03:00
int curcol ; /* Output column for this process */
2011-08-25 02:25:08 +04:00
FILE * outf ; /* Output file for this process */
2000-06-27 21:33:32 +04:00
const char * auxstr ; /* Auxiliary info from syscall (see RVAL_STR) */
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const struct_sysent * s_ent ; /* sysent[scno] or dummy struct for bad scno */
2015-03-21 19:51:52 +03:00
const struct_sysent * s_prev_ent ; /* for "resuming interrupted SYSCALL" msg */
1999-02-19 03:21:36 +03:00
struct timeval stime ; /* System time usage as of last process wait */
struct timeval dtime ; /* Delta for system time usage */
struct timeval etime ; /* Syscall entry time */
2013-07-23 11:11:35 +04:00
# ifdef USE_LIBUNWIND
struct UPT_info * libunwind_ui ;
struct mmap_cache_t * mmap_cache ;
unsigned int mmap_cache_size ;
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unsigned int mmap_cache_generation ;
2014-04-16 10:33:06 +04:00
struct queue_t * queue ;
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# endif
1999-02-19 03:21:36 +03:00
} ;
/* TCB flags */
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/* We have attached to this process, but did not see it stopping yet */
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# define TCB_STARTUP 0x01
# define TCB_IGNORE_ONE_SIGSTOP 0x02 /* Next SIGSTOP is to be ignored */
2011-08-21 20:03:23 +04:00
/*
* Are we in system call entry or in syscall exit ?
*
* This bit is set after all syscall entry processing is done .
* Therefore , this bit will be set when next ptrace stop occurs ,
* which should be syscall exit stop . Other stops which are possible
* directly after syscall entry ( death , ptrace event stop )
* are simpler and handled without calling trace_syscall ( ) , therefore
* the places where TCB_INSYSCALL can be set but we aren ' t in syscall stop
* are limited to trace ( ) , this condition is never observed in trace_syscall ( )
* and below .
* The bit is cleared after all syscall exit processing is done .
*
* Use entering ( tcp ) / exiting ( tcp ) to check this bit to make code more readable .
*/
2013-06-26 16:14:29 +04:00
# define TCB_INSYSCALL 0x04
# define TCB_ATTACHED 0x08 /* We attached to it already */
Remove support for systems without PTRACE_SETOPTIONS
Assume that the kernel is v2.5.46 or newer, i.e. PTRACE_SETOPTIONS
and PTRACE_O_TRACESYSGOOD|PTRACE_O_TRACEEXEC|PTRACE_O_TRACECLONE
are universally available.
This change removes all code that implemented post-execve SIGTRAP
handling and fork/vfork/clone->CLONE_PTRACE substitution.
* defs.h (TCB_BPTSET, TCB_WAITEXECVE): Remove macros.
(need_fork_exec_workarounds, setbpt, clearbpt): Remove declarations.
* strace.c (need_fork_exec_workarounds,
test_ptrace_setoptions_followfork, test_ptrace_setoptions_for_all):
Remove.
(syscall_trap_sig): Set to (SIGTRAP | 0x80).
(ptrace_setoptions): Set to (PTRACE_O_TRACESYSGOOD | PTRACE_O_TRACEEXEC).
(detach): Do not test for TCB_BPTSET.
(init): Do not call test_ptrace_setoptions_followfork and
test_ptrace_setoptions_for_all. Do not test for TCB_BPTSET.
* syscall.c (syscall_fixup_on_sysenter, internal_fork, internal_exec,
syscall_fixup_for_fork_exec, syscall_fixup_on_sysexit): Remove.
(trace_syscall_entering): Do not test for TCB_WAITEXECVE. Do not call
syscall_fixup_on_sysenter and syscall_fixup_for_fork_exec.
(trace_syscall_exiting): Do not call syscall_fixup_on_sysexit and
syscall_fixup_for_fork_exec.
[IA64] (ia64_ia32mode): Make static.
* linux/ia64/arch_regs.h (ia64_ia32mode): Remove declaration.
* util.c: Do not include "syscall.h".
(arg_setup, get_arg0, get_arg1, set_arg0, set_arg1, restore_arg0,
restore_arg1, arg_finish_change, change_syscall, setbpt, clearbpt):
Remove.
* tests/ptrace_setoptions.test: Remove.
* tests/Makefile.am (TESTS): Remove it.
2015-02-08 16:05:53 +03:00
# define TCB_REPRINT 0x10 /* We should reprint this syscall on exit */
# define TCB_FILTERED 0x20 /* This system call has been filtered out */
1999-02-19 03:21:36 +03:00
/* qualifier flags */
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# define QUAL_TRACE 0x001 /* this system call should be traced */
# define QUAL_ABBREV 0x002 /* abbreviate the structures of this syscall */
# define QUAL_VERBOSE 0x004 /* decode the structures of this syscall */
# define QUAL_RAW 0x008 /* print all args in hex for this syscall */
# define QUAL_SIGNAL 0x010 /* report events with this signal */
2013-02-21 19:17:08 +04:00
# define QUAL_READ 0x020 /* dump data read on this file descriptor */
# define QUAL_WRITE 0x040 /* dump data written to this file descriptor */
2013-02-21 19:15:43 +04:00
typedef uint8_t qualbits_t ;
2013-02-21 19:17:08 +04:00
# define UNDEFINED_SCNO 0x100 /* Used only in tcp->qual_flg */
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# define DEFAULT_QUAL_FLAGS (QUAL_TRACE | QUAL_ABBREV | QUAL_VERBOSE)
1999-02-19 03:21:36 +03:00
# define entering(tcp) (!((tcp)->flags & TCB_INSYSCALL))
# define exiting(tcp) ((tcp)->flags & TCB_INSYSCALL)
# define syserror(tcp) ((tcp)->u_error != 0)
2013-02-22 16:23:38 +04:00
# define verbose(tcp) ((tcp)->qual_flg & QUAL_VERBOSE)
# define abbrev(tcp) ((tcp)->qual_flg & QUAL_ABBREV)
2011-04-08 00:25:40 +04:00
# define filtered(tcp) ((tcp)->flags & TCB_FILTERED)
1999-02-19 03:21:36 +03:00
struct xlat {
2014-09-10 17:46:04 +04:00
unsigned int val ;
2010-09-07 02:08:24 +04:00
const char * str ;
1999-02-19 03:21:36 +03:00
} ;
2014-02-05 05:28:45 +04:00
# define XLAT(x) { x, #x }
2014-02-05 06:18:52 +04:00
# define XLAT_END { 0, NULL }
1999-02-19 03:21:36 +03:00
2009-01-13 21:30:55 +03:00
extern const struct xlat addrfams [ ] ;
2014-12-06 06:53:16 +03:00
extern const struct xlat at_flags [ ] ;
2009-01-13 21:30:55 +03:00
extern const struct xlat open_access_modes [ ] ;
2014-12-06 06:53:16 +03:00
extern const struct xlat open_mode_flags [ ] ;
2013-02-17 17:31:55 +04:00
extern const struct xlat whence_codes [ ] ;
2009-01-13 21:30:55 +03:00
1999-02-19 03:21:36 +03:00
/* Format of syscall return values */
# define RVAL_DECIMAL 000 /* decimal format */
# define RVAL_HEX 001 /* hex format */
# define RVAL_OCTAL 002 /* octal format */
# define RVAL_UDECIMAL 003 /* unsigned decimal format */
2012-04-16 14:16:45 +04:00
# if defined(LINUX_MIPSN32) || defined(X32)
# if 0 /* unused so far */
# define RVAL_LDECIMAL 004 /* long decimal format */
# define RVAL_LHEX 005 /* long hex format */
# define RVAL_LOCTAL 006 /* long octal format */
# endif
# define RVAL_LUDECIMAL 007 /* long unsigned decimal format */
# endif
2014-06-04 07:00:41 +04:00
# define RVAL_FD 010 /* file descriptor */
# define RVAL_MASK 017 /* mask for these values */
1999-02-19 03:21:36 +03:00
2014-06-04 07:00:41 +04:00
# define RVAL_STR 020 /* Print `auxstr' field after return val */
# define RVAL_NONE 040 /* Print nothing */
1999-02-19 03:21:36 +03:00
# define TRACE_FILE 001 /* Trace file-related syscalls. */
# define TRACE_IPC 002 /* Trace IPC-related syscalls. */
# define TRACE_NETWORK 004 /* Trace network-related syscalls. */
# define TRACE_PROCESS 010 /* Trace process-related syscalls. */
# define TRACE_SIGNAL 020 /* Trace signal-related syscalls. */
2005-07-05 07:25:35 +04:00
# define TRACE_DESC 040 /* Trace file descriptor-related syscalls. */
Add -e trace=memory option
Add a new 'memory' category for tracing memory mapping related syscalls.
Affected syscalls are: break, brk, get_mempolicy, madvise, mbind,
migrate_pages, mincore, mlock, mlockall, mmap, move_pages, mprotect,
mremap, msync, munlock, munlockall, munmap, remap_file_pages, and
set_mempolicy.
* defs.h (TRACE_MEMORY): New macro.
* syscall.c (lookup_class): Handle trace=memory option.
* strace.1: Document it.
* linux/alpha/syscallent.h: Add TM flag to memory mapping related syscalls.
* linux/arm/syscallent.h: Likewise.
* linux/avr32/syscallent.h: Likewise.
* linux/bfin/syscallent.h: Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/ia64/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/microblaze/syscallent.h: Likewise.
* linux/mips/syscallent.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/s390x/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/tile/syscallent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/syscallent.h: Likewise.
Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
2012-10-24 06:41:57 +04:00
# define TRACE_MEMORY 0100 /* Trace memory mapping-related syscalls. */
# define SYSCALL_NEVER_FAILS 0200 /* Syscall is always successful. */
2014-04-16 10:33:11 +04:00
# define STACKTRACE_INVALIDATE_CACHE 0400 /* Trigger proc/maps cache updating */
# define STACKTRACE_CAPTURE_ON_ENTER 01000 /* Capture stacktrace on "entering" stage */
2015-01-10 22:01:35 +03:00
# define TRACE_INDIRECT_SUBCALL 02000 /* Syscall is an indirect socket/ipc subcall. */
1999-02-19 03:21:36 +03:00
Fix decoding of 16-bit *chown and [gs]et*[gu]id 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.
2014-12-14 00:49:01 +03:00
# if defined(ARM) || defined(AARCH64) \
| | defined ( I386 ) | | defined ( X32 ) | | defined ( X86_64 ) \
2015-02-26 10:15:33 +03:00
| | defined ( IA64 ) \
Fix decoding of 16-bit *chown and [gs]et*[gu]id 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.
2014-12-14 00:49:01 +03:00
| | defined ( BFIN ) \
| | defined ( M68K ) \
| | defined ( MICROBLAZE ) \
| | defined ( S390 ) \
| | defined ( SH ) | | defined ( SH64 ) \
| | defined ( SPARC ) | | defined ( SPARC64 ) \
/**/
# define NEED_UID16_PARSERS 1
# else
# define NEED_UID16_PARSERS 0
# endif
2010-03-28 23:24:54 +04:00
typedef enum {
CFLAG_NONE = 0 ,
CFLAG_ONLY_STATS ,
CFLAG_BOTH
} cflag_t ;
Tidy up order of includes; make bool variables explicit.
Bool variables are more compact in data and (on x86) on code too:
text data bss dec hex filename
237950 676 19044 257670 3ee86 strace.before
237838 676 19012 257526 3edf6 strace
* defs.h: Group library includes at the top of the file.
Rename dtime to Tflag, debug to debug_flag.
Change debug_flag,Tflag,qflag,not_failing_only,show_fd_path,tracing_paths
variable declarations from int to bool.
* strace.c: Change corresponding definitions. Do the same for static
variables iflag,rflag,print_pid_pfx.
Rename dtime to Tflag, debug to debug_flag.
* syscall.c: Rename dtime to Tflag, debug to debug_flag.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-15 15:49:52 +04:00
extern cflag_t cflag ;
extern bool debug_flag ;
extern bool Tflag ;
2013-07-12 14:22:06 +04:00
extern bool iflag ;
2014-05-28 20:52:40 +04:00
extern bool count_wallclock ;
2013-05-13 14:30:55 +04:00
extern unsigned int qflag ;
Tidy up order of includes; make bool variables explicit.
Bool variables are more compact in data and (on x86) on code too:
text data bss dec hex filename
237950 676 19044 257670 3ee86 strace.before
237838 676 19012 257526 3edf6 strace
* defs.h: Group library includes at the top of the file.
Rename dtime to Tflag, debug to debug_flag.
Change debug_flag,Tflag,qflag,not_failing_only,show_fd_path,tracing_paths
variable declarations from int to bool.
* strace.c: Change corresponding definitions. Do the same for static
variables iflag,rflag,print_pid_pfx.
Rename dtime to Tflag, debug to debug_flag.
* syscall.c: Rename dtime to Tflag, debug to debug_flag.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-15 15:49:52 +04:00
extern bool not_failing_only ;
2014-08-09 03:38:26 +04:00
extern unsigned int show_fd_path ;
2013-05-14 18:07:46 +04:00
extern bool hide_log_until_execve ;
2013-03-05 19:01:53 +04:00
/* are we filtering traces based on paths? */
extern const char * * paths_selected ;
# define tracing_paths (paths_selected != NULL)
2013-02-14 06:29:48 +04:00
extern unsigned xflag ;
extern unsigned followfork ;
2013-07-23 11:11:35 +04:00
# ifdef USE_LIBUNWIND
/* if this is true do the stack trace for every system call */
extern bool stack_trace_enabled ;
# endif
2013-02-14 06:29:48 +04:00
extern unsigned ptrace_setoptions ;
extern unsigned max_strlen ;
extern unsigned os_release ;
# undef KERNEL_VERSION
# define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
Tidy up order of includes; make bool variables explicit.
Bool variables are more compact in data and (on x86) on code too:
text data bss dec hex filename
237950 676 19044 257670 3ee86 strace.before
237838 676 19012 257526 3edf6 strace
* defs.h: Group library includes at the top of the file.
Rename dtime to Tflag, debug to debug_flag.
Change debug_flag,Tflag,qflag,not_failing_only,show_fd_path,tracing_paths
variable declarations from int to bool.
* strace.c: Change corresponding definitions. Do the same for static
variables iflag,rflag,print_pid_pfx.
Rename dtime to Tflag, debug to debug_flag.
* syscall.c: Rename dtime to Tflag, debug to debug_flag.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-03-15 15:49:52 +04:00
2006-12-13 20:10:11 +03:00
enum bitness_t { BITNESS_CURRENT = 0 , BITNESS_32 } ;
2011-05-27 16:36:01 +04:00
void error_msg ( const char * fmt , . . . ) __attribute__ ( ( format ( printf , 1 , 2 ) ) ) ;
void perror_msg ( const char * fmt , . . . ) __attribute__ ( ( format ( printf , 1 , 2 ) ) ) ;
void error_msg_and_die ( const char * fmt , . . . ) __attribute__ ( ( noreturn , format ( printf , 1 , 2 ) ) ) ;
void perror_msg_and_die ( const char * fmt , . . . ) __attribute__ ( ( noreturn , format ( printf , 1 , 2 ) ) ) ;
2011-08-31 16:00:02 +04:00
void die_out_of_memory ( void ) __attribute__ ( ( noreturn ) ) ;
2011-05-27 16:36:01 +04:00
2013-07-16 14:18:59 +04:00
# if USE_CUSTOM_PRINTF
2012-04-16 20:22:19 +04:00
/*
* See comment in vsprintf . c for allowed formats .
* Short version : % h [ h ] u , % zu , % tu are not allowed , use % [ l [ l ] ] u .
*/
int strace_vfprintf ( FILE * fp , const char * fmt , va_list args ) ;
# else
# define strace_vfprintf vfprintf
# endif
2010-09-07 02:08:24 +04:00
extern void set_sortby ( const char * ) ;
2009-10-27 18:56:43 +03:00
extern void set_overhead ( int ) ;
2010-09-07 02:08:24 +04:00
extern void qualify ( const char * ) ;
2013-07-01 14:49:14 +04:00
extern void print_pc ( struct tcb * ) ;
2009-10-27 18:56:43 +03:00
extern int trace_syscall ( struct tcb * ) ;
2014-05-29 22:10:00 +04:00
extern void count_syscall ( struct tcb * , const struct timeval * ) ;
2012-03-23 14:26:36 +04:00
extern void call_summary ( FILE * ) ;
2015-02-14 00:56:50 +03:00
extern void clear_regs ( void ) ;
Optimize out PTRACE_PEEKUSER with -i
strace -i was fetching PC with a separate PEEKUSER
despite having GETREGS data:
ptrace(PTRACE_GETREGS, 22331, 0, 0x8087f00) = 0
ptrace(PTRACE_PEEKUSER, 22331, 4*EIP, [0x80dd7b7]) = 0
write(3, "[080dd7b7] ioctl(0, SNDCTL_TMR_T"..., 82) = 82
ptrace(PTRACE_SYSCALL, 22331, 0, SIG_0) = 0
Now it does this:
ptrace(PTRACE_GETREGS, 22549, 0, 0x8087ea0) = 0
write(3, "[080dd7b7] ioctl(0, SNDCTL_TMR_T"..., 82) = 82
ptrace(PTRACE_SYSCALL, 22549, 0, SIG_0) = 0
Analogous improvement in sys_sigreturn() is also implemented.
* defs.h: Declare extern struct pt_regs regs for SPARC[64] and ARM.
Declare clear_regs(), get_regs() and get_regs_error flag variable.
* strace.c (trace): Call get_regs(pid) as soon as we know the tcb
and that it is stopped.
* syscall.c (get_regs): New function. Used to fetch registers early,
just after tracee has stopped.
(printcall): Move it here from util.c. Use global regs.REG data,
if available on the arch, instead of re-fetching it.
(get_scno): Use global regs.REG data.
(get_syscall_result): Likewise.
* signal.c (sys_sigreturn): Likewise.
* util.c (printcall): Moved to syscall.c.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2013-02-05 19:36:13 +04:00
extern void get_regs ( pid_t pid ) ;
2015-03-21 19:51:52 +03:00
extern int get_scno ( struct tcb * tcp ) ;
2015-02-14 00:56:50 +03:00
2015-03-21 21:50:53 +03:00
extern int umoven ( struct tcb * , long , unsigned int , void * ) ;
2012-03-23 14:26:36 +04:00
# define umove(pid, addr, objp) \
2015-03-21 21:50:53 +03:00
umoven ( ( pid ) , ( addr ) , sizeof ( * ( objp ) ) , ( void * ) ( objp ) )
2015-01-14 11:05:45 +03:00
extern int umovestr ( struct tcb * , long , unsigned int , char * ) ;
2013-06-28 16:35:47 +04:00
extern int upeek ( int pid , long , long * ) ;
2015-03-23 03:04:27 +03:00
2015-03-24 02:14:08 +03:00
# if defined ALPHA || defined IA64 || defined MIPS \
| | defined SH | | defined SPARC | | defined SPARC64
2015-03-23 03:04:27 +03:00
# define HAVE_GETRVAL2
2012-03-23 14:26:36 +04:00
extern long getrval2 ( struct tcb * ) ;
2015-03-23 03:04:27 +03:00
# else
# undef HAVE_GETRVAL2
2012-03-23 14:26:36 +04:00
# endif
2014-09-10 17:46:04 +04:00
extern const char * signame ( const int ) ;
2013-03-05 18:46:34 +04:00
extern void pathtrace_select ( const char * ) ;
2012-03-23 14:26:36 +04:00
extern int pathtrace_match ( struct tcb * ) ;
2013-03-06 21:24:34 +04:00
extern int getfdpath ( struct tcb * , int , char * , unsigned ) ;
2012-03-23 14:26:36 +04:00
2014-09-10 17:46:04 +04:00
extern const char * xlookup ( const struct xlat * , const unsigned int ) ;
2014-09-22 02:42:45 +04:00
extern const char * xlat_search ( const struct xlat * , const size_t , const unsigned int ) ;
2012-03-23 14:26:36 +04:00
2012-03-26 01:49:48 +04:00
extern int string_to_uint ( const char * str ) ;
2013-11-09 23:40:31 +04:00
extern int next_set_bit ( const void * bit_array , unsigned cur_bit , unsigned size_bits ) ;
2012-03-26 01:49:48 +04:00
2015-01-26 04:17:08 +03:00
# define QUOTE_0_TERMINATED 0x01
# define QUOTE_OMIT_LEADING_TRAILING_QUOTES 0x02
extern int print_quoted_string ( const char * , unsigned int , unsigned int ) ;
2013-02-18 01:41:33 +04:00
/* a refers to the lower numbered u_arg,
* b refers to the higher numbered u_arg
2012-03-23 14:26:36 +04:00
*/
2013-02-18 01:41:33 +04:00
# if HAVE_LITTLE_ENDIAN_LONG_LONG
# define LONG_LONG(a,b) \
( ( long long ) ( ( unsigned long long ) ( unsigned ) ( a ) | ( ( unsigned long long ) ( b ) < < 32 ) ) )
# else
# define LONG_LONG(a,b) \
( ( long long ) ( ( unsigned long long ) ( unsigned ) ( b ) | ( ( unsigned long long ) ( a ) < < 32 ) ) )
2012-03-23 14:26:36 +04:00
# endif
2015-01-10 03:08:58 +03:00
extern int getllval ( struct tcb * , unsigned long long * , int ) ;
2015-02-18 01:47:25 +03:00
extern int printllval ( struct tcb * , const char * , int )
__attribute__ ( ( format ( printf , 2 , 0 ) ) ) ;
2013-02-18 01:41:33 +04:00
2014-09-10 17:46:04 +04:00
extern void printxval ( const struct xlat * , const unsigned int , const char * ) ;
2009-10-27 18:56:43 +03:00
extern int printargs ( struct tcb * ) ;
2012-02-27 17:18:02 +04:00
extern int printargs_lu ( struct tcb * ) ;
extern int printargs_ld ( struct tcb * ) ;
2011-08-19 20:06:46 +04:00
extern void addflags ( const struct xlat * , int ) ;
2009-10-27 18:56:43 +03:00
extern int printflags ( const struct xlat * , int , const char * ) ;
extern const char * sprintflags ( const char * , const struct xlat * , int ) ;
2014-12-06 06:53:16 +03:00
extern const char * sprintmode ( int ) ;
2014-12-06 06:53:16 +03:00
extern const char * sprinttime ( time_t ) ;
2014-10-15 17:11:43 +04:00
extern void dumpiov_in_msghdr ( struct tcb * , long ) ;
2014-11-06 19:23:26 +03:00
extern void dumpiov_in_mmsghdr ( struct tcb * , long ) ;
2009-10-27 18:56:43 +03:00
extern void dumpiov ( struct tcb * , int , long ) ;
extern void dumpstr ( struct tcb * , long , int ) ;
2012-04-28 16:58:35 +04:00
extern void printstr ( struct tcb * , long , long ) ;
2015-02-18 01:47:25 +03:00
extern void printnum_int ( struct tcb * , long , const char * )
__attribute__ ( ( format ( printf , 3 , 0 ) ) ) ;
extern void printnum_long ( struct tcb * , long , const char * )
__attribute__ ( ( format ( printf , 3 , 0 ) ) ) ;
2009-10-27 18:56:43 +03:00
extern void printpath ( struct tcb * , long ) ;
2014-09-10 17:46:04 +04:00
extern void printpathn ( struct tcb * , long , unsigned int ) ;
2012-01-20 14:04:04 +04:00
# define TIMESPEC_TEXT_BUFSIZE (sizeof(long)*3 * 2 + sizeof("{%u, %u}"))
# define TIMEVAL_TEXT_BUFSIZE TIMESPEC_TEXT_BUFSIZE
2009-10-27 18:56:43 +03:00
extern void printtv_bitness ( struct tcb * , long , enum bitness_t , int ) ;
2012-03-23 14:26:36 +04:00
# define printtv(tcp, addr) \
printtv_bitness ( ( tcp ) , ( addr ) , BITNESS_CURRENT , 0 )
# define printtv_special(tcp, addr) \
printtv_bitness ( ( tcp ) , ( addr ) , BITNESS_CURRENT , 1 )
2012-01-20 14:04:04 +04:00
extern char * sprinttv ( char * , struct tcb * , long , enum bitness_t , int special ) ;
2009-10-27 18:56:43 +03:00
extern void print_timespec ( struct tcb * , long ) ;
extern void sprint_timespec ( char * , struct tcb * , long ) ;
2015-02-07 18:47:24 +03:00
extern void printsiginfo ( const siginfo_t * , int ) ;
2013-02-13 19:31:32 +04:00
extern void printsiginfo_at ( struct tcb * tcp , long addr ) ;
Fix decoding of file descriptors
* defs.h (printfd): New function prototype.
* util.c (printfd): New function.
* file.c (print_dirfd): Update prototype to use printfd().
(sys_openat, sys_faccessat, sys_newfstatat, sys_mkdirat, sys_linkat,
sys_unlinkat, sys_readlinkat, sys_renameat, sys_fchownat, sys_fchmodat,
sys_futimesat, sys_utimensat, sys_mknodat): Update use of print_dirfd().
(sys_lseek, sys_llseek, sys_readahead, sys_ftruncate, sys_ftruncate64,
sys_fstat, sys_fstat64, sys_oldfstat, sys_fstatfs, sys_fstatfs64,
sys_fchdir, sys_fchroot, sys_linkat, sys_fchown, sys_fchmod, sys_fsync,
sys_readdir, sys_getdents, sys_getdirentries, sys_fsetxattr,
sys_fgetxattr, sys_flistxattr, sys_fremovexattr, sys_fadvise64,
sys_fadvise64_64, sys_inotify_add_watch, sys_inotify_rm_watch,
sys_fallocate): Use printfd() for decoding of file descriptors.
* desc.c (sys_fcntl, sys_flock, sys_close, sys_dup, do_dup2,
decode_select, sys_epoll_ctl, epoll_wait_common): Use printfd() for
decoding of file descriptors.
* io.c (sys_read, sys_write, sys_readv, sys_writev, sys_pread,
sys_pwrite, sys_sendfile, sys_sendfile64, sys_pread64, sys_pwrite64,
sys_ioctl): Likewise.
* mem.c (print_mmap, sys_mmap64): Likewise.
* signal.c (do_signalfd): Likewise.
* stream.c (decode_poll): Likewise.
* time.c (sys_timerfd_settime, sys_timerfd_gettime): Likewise.
Based on patch from Grant Edwards <grant.b.edwards@gmail.com>.
2011-03-04 05:08:02 +03:00
extern void printfd ( struct tcb * , int ) ;
2014-12-10 06:55:06 +03:00
extern bool print_sockaddr_by_inode ( const unsigned long , const char * ) ;
2014-02-05 08:13:18 +04:00
extern void print_dirfd ( struct tcb * , int ) ;
2009-10-27 18:56:43 +03:00
extern void printsock ( struct tcb * , long , int ) ;
extern void print_sock_optmgmt ( struct tcb * , long , int ) ;
extern void printrusage ( struct tcb * , long ) ;
2011-08-11 19:04:53 +04:00
# ifdef ALPHA
extern void printrusage32 ( struct tcb * , long ) ;
# endif
2014-12-13 21:24:13 +03:00
extern void printuid ( const char * , const unsigned int ) ;
2013-07-18 19:02:21 +04:00
extern void print_sigset_addr_len ( struct tcb * , long , long ) ;
2015-03-06 04:47:18 +03:00
extern const char * sprintsigmask_n ( const char * , const void * , unsigned int ) ;
# define tprintsigmask_addr(prefix, mask) \
tprints ( sprintsigmask_n ( ( prefix ) , ( mask ) , sizeof ( mask ) ) )
2009-10-27 18:56:43 +03:00
extern void printsignal ( int ) ;
2011-06-14 02:58:44 +04:00
extern void tprint_iov ( struct tcb * , unsigned long , unsigned long , int decode_iov ) ;
2012-04-28 16:26:18 +04:00
extern void tprint_iov_upto ( struct tcb * , unsigned long , unsigned long , int decode_iov , unsigned long ) ;
2014-09-24 06:09:50 +04:00
extern void tprint_open_modes ( int ) ;
extern const char * sprint_open_modes ( int ) ;
2012-04-05 06:22:01 +04:00
extern void print_loff_t ( struct tcb * , long ) ;
2015-02-05 02:50:50 +03:00
extern void print_seccomp_filter ( struct tcb * tcp , unsigned long ) ;
2011-04-08 00:25:40 +04:00
ioctl: assume that all ioctl commands have unsigned int type
In linux, ioctl command number has a 32-bit unsigned integer type:
fs/ioctl.c:SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
If the kernel completely ignores other bits on 64-bit architectures,
why should strace care?
Let's follow the kernel and treat it as unsigned int.
* defs.h (struct_ioctlent): Change "code" type to "unsigned int".
(ioctl_decode, ioctl_lookup, block_ioctl, loop_ioctl, mtd_ioctl,
ubi_ioctl, ptp_ioctl, scsi_ioctl, sock_ioctl, term_ioctl, rtc_ioctl,
v4l2_ioctl): Likewise.
* ioctl.c (ioctl_decode, ioctl_lookup, compare, ioctl_next_match):
Likewise.
* block.c (block_ioctl): Likewise.
* loop.c (loop_ioctl): Likewise.
* mtd.c (mtd_ioctl, ubi_ioctl): Likewise.
* ptp.c (ptp_ioctl): Likewise.
* scsi.c (scsi_ioctl): Likewise.
* sock.c (sock_ioctl): Likewise.
* term.c (term_ioctl): Likewise.
* time.c (rtc_ioctl): Likewise.
* v4l2.c (v4l2_ioctl): Likewise.
* ioctlsort.c (struct ioctlent, compare, main): Likewise.
2015-01-19 21:44:21 +03:00
extern const struct_ioctlent * ioctl_lookup ( const unsigned int ) ;
2013-02-22 16:26:10 +04:00
extern const struct_ioctlent * ioctl_next_match ( const struct_ioctlent * ) ;
2015-01-20 03:24:36 +03:00
extern void ioctl_print_code ( const unsigned int ) ;
ioctl: assume that all ioctl commands have unsigned int type
In linux, ioctl command number has a 32-bit unsigned integer type:
fs/ioctl.c:SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
If the kernel completely ignores other bits on 64-bit architectures,
why should strace care?
Let's follow the kernel and treat it as unsigned int.
* defs.h (struct_ioctlent): Change "code" type to "unsigned int".
(ioctl_decode, ioctl_lookup, block_ioctl, loop_ioctl, mtd_ioctl,
ubi_ioctl, ptp_ioctl, scsi_ioctl, sock_ioctl, term_ioctl, rtc_ioctl,
v4l2_ioctl): Likewise.
* ioctl.c (ioctl_decode, ioctl_lookup, compare, ioctl_next_match):
Likewise.
* block.c (block_ioctl): Likewise.
* loop.c (loop_ioctl): Likewise.
* mtd.c (mtd_ioctl, ubi_ioctl): Likewise.
* ptp.c (ptp_ioctl): Likewise.
* scsi.c (scsi_ioctl): Likewise.
* sock.c (sock_ioctl): Likewise.
* term.c (term_ioctl): Likewise.
* time.c (rtc_ioctl): Likewise.
* v4l2.c (v4l2_ioctl): Likewise.
* ioctlsort.c (struct ioctlent, compare, main): Likewise.
2015-01-19 21:44:21 +03:00
extern int ioctl_decode ( struct tcb * , const unsigned int , long ) ;
2015-01-22 01:35:27 +03:00
extern int ioctl_decode_command_number ( const unsigned int ) ;
ioctl: assume that all ioctl commands have unsigned int type
In linux, ioctl command number has a 32-bit unsigned integer type:
fs/ioctl.c:SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
If the kernel completely ignores other bits on 64-bit architectures,
why should strace care?
Let's follow the kernel and treat it as unsigned int.
* defs.h (struct_ioctlent): Change "code" type to "unsigned int".
(ioctl_decode, ioctl_lookup, block_ioctl, loop_ioctl, mtd_ioctl,
ubi_ioctl, ptp_ioctl, scsi_ioctl, sock_ioctl, term_ioctl, rtc_ioctl,
v4l2_ioctl): Likewise.
* ioctl.c (ioctl_decode, ioctl_lookup, compare, ioctl_next_match):
Likewise.
* block.c (block_ioctl): Likewise.
* loop.c (loop_ioctl): Likewise.
* mtd.c (mtd_ioctl, ubi_ioctl): Likewise.
* ptp.c (ptp_ioctl): Likewise.
* scsi.c (scsi_ioctl): Likewise.
* sock.c (sock_ioctl): Likewise.
* term.c (term_ioctl): Likewise.
* time.c (rtc_ioctl): Likewise.
* v4l2.c (v4l2_ioctl): Likewise.
* ioctlsort.c (struct ioctlent, compare, main): Likewise.
2015-01-19 21:44:21 +03:00
extern int block_ioctl ( struct tcb * , const unsigned int , long ) ;
2015-02-20 19:14:10 +03:00
extern int evdev_ioctl ( struct tcb * , const unsigned int , long ) ;
ioctl: assume that all ioctl commands have unsigned int type
In linux, ioctl command number has a 32-bit unsigned integer type:
fs/ioctl.c:SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd, unsigned long, arg)
If the kernel completely ignores other bits on 64-bit architectures,
why should strace care?
Let's follow the kernel and treat it as unsigned int.
* defs.h (struct_ioctlent): Change "code" type to "unsigned int".
(ioctl_decode, ioctl_lookup, block_ioctl, loop_ioctl, mtd_ioctl,
ubi_ioctl, ptp_ioctl, scsi_ioctl, sock_ioctl, term_ioctl, rtc_ioctl,
v4l2_ioctl): Likewise.
* ioctl.c (ioctl_decode, ioctl_lookup, compare, ioctl_next_match):
Likewise.
* block.c (block_ioctl): Likewise.
* loop.c (loop_ioctl): Likewise.
* mtd.c (mtd_ioctl, ubi_ioctl): Likewise.
* ptp.c (ptp_ioctl): Likewise.
* scsi.c (scsi_ioctl): Likewise.
* sock.c (sock_ioctl): Likewise.
* term.c (term_ioctl): Likewise.
* time.c (rtc_ioctl): Likewise.
* v4l2.c (v4l2_ioctl): Likewise.
* ioctlsort.c (struct ioctlent, compare, main): Likewise.
2015-01-19 21:44:21 +03:00
extern int loop_ioctl ( struct tcb * , const unsigned int , long ) ;
extern int mtd_ioctl ( struct tcb * , const unsigned int , long ) ;
extern int ptp_ioctl ( struct tcb * , const unsigned int , long ) ;
extern int rtc_ioctl ( struct tcb * , const unsigned int , long ) ;
extern int scsi_ioctl ( struct tcb * , const unsigned int , long ) ;
extern int sock_ioctl ( struct tcb * , const unsigned int , long ) ;
extern int term_ioctl ( struct tcb * , const unsigned int , long ) ;
extern int ubi_ioctl ( struct tcb * , const unsigned int , long ) ;
extern int v4l2_ioctl ( struct tcb * , const unsigned int , long ) ;
1999-02-19 03:21:36 +03:00
Constify tv_* functions
* defs.h (tv_nz, tv_cmp, tv_float, tv_add, tv_sub, tv_mul, tv_div): Add
const qualifier to read only arguments.
* util.c (tv_nz, tv_cmp, tv_float, tv_add, tv_sub, tv_mul, tv_div):
Likewise.
2014-05-29 21:59:01 +04:00
extern int tv_nz ( const struct timeval * ) ;
extern int tv_cmp ( const struct timeval * , const struct timeval * ) ;
extern double tv_float ( const struct timeval * ) ;
extern void tv_add ( struct timeval * , const struct timeval * , const struct timeval * ) ;
extern void tv_sub ( struct timeval * , const struct timeval * , const struct timeval * ) ;
extern void tv_mul ( struct timeval * , const struct timeval * , int ) ;
extern void tv_div ( struct timeval * , const struct timeval * , int ) ;
1999-02-19 03:21:36 +03:00
2013-07-23 11:11:35 +04:00
# ifdef USE_LIBUNWIND
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extern void unwind_init ( void ) ;
extern void unwind_tcb_init ( struct tcb * tcp ) ;
extern void unwind_tcb_fin ( struct tcb * tcp ) ;
extern void unwind_cache_invalidate ( struct tcb * tcp ) ;
extern void unwind_print_stacktrace ( struct tcb * tcp ) ;
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extern void unwind_capture_stacktrace ( struct tcb * tcp ) ;
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# endif
2012-03-13 14:44:31 +04:00
/* Strace log generation machinery.
*
* printing_tcp : tcb which has incomplete line being printed right now .
* NULL if last line has been completed ( ' \n ' - terminated ) .
* printleader ( tcp ) examines it , finishes incomplete line if needed ,
* the sets it to tcp .
* line_ended ( ) clears printing_tcp and resets - > curcol = 0.
* tcp - > curcol = = 0 check is also used to detect completeness
* of last line , since in - ff mode just checking printing_tcp for NULL
* is not enough .
*
* If you change this code , test log generation in both - f and - ff modes
* using :
* strace - oLOG - f [ f ] test / threaded_execve
* strace - oLOG - f [ f ] test / sigkill_rain
* strace - oLOG - f [ f ] - p " `pidof web_browser` "
*/
extern struct tcb * printing_tcp ;
extern void printleader ( struct tcb * ) ;
extern void line_ended ( void ) ;
extern void tabto ( void ) ;
extern void tprintf ( const char * fmt , . . . ) __attribute__ ( ( format ( printf , 1 , 2 ) ) ) ;
extern void tprints ( const char * str ) ;
2012-03-19 12:36:42 +04:00
# if SUPPORTED_PERSONALITIES > 1
extern void set_personality ( int personality ) ;
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extern unsigned current_personality ;
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# else
# define set_personality(personality) ((void)0)
# define current_personality 0
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# endif
# if SUPPORTED_PERSONALITIES == 1
# define current_wordsize PERSONALITY0_WORDSIZE
# else
# if SUPPORTED_PERSONALITIES == 2 && PERSONALITY0_WORDSIZE == PERSONALITY1_WORDSIZE
# define current_wordsize PERSONALITY0_WORDSIZE
# else
extern unsigned current_wordsize ;
# endif
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# endif
1999-02-19 03:21:36 +03:00
2013-02-15 17:58:52 +04:00
/* In many, many places we play fast and loose and use
* tprintf ( " %d " , ( int ) tcp - > u_arg [ N ] ) to print fds , pids etc .
* We probably need to use widen_to_long ( ) instead :
*/
# if SUPPORTED_PERSONALITIES > 1 && SIZEOF_LONG > 4
# define widen_to_long(v) (current_wordsize == 4 ? (long)(int32_t)(v) : (long)(v))
# else
# define widen_to_long(v) ((long)(v))
# endif
2013-02-22 16:37:36 +04:00
extern const struct_sysent sysent0 [ ] ;
extern const char * const errnoent0 [ ] ;
extern const char * const signalent0 [ ] ;
extern const struct_ioctlent ioctlent0 [ ] ;
extern qualbits_t * qual_vec [ SUPPORTED_PERSONALITIES ] ;
# define qual_flags (qual_vec[current_personality])
# if SUPPORTED_PERSONALITIES > 1
2013-02-22 16:26:10 +04:00
extern const struct_sysent * sysent ;
Small optimization in signal and ioctl tables
Trivial shuffling of data tables puts them all in one file,
allowing gcc to see their sizes and eliminate variables
which store these sizes.
Surprisingly, in C mode gcc does not optimize out static const int
variables. Help it by using enums instead.
* defs.h: Stop exporting ioctlent{0,1,2}, nioctlents{0,1,2},
signalent{0,1,2}, nsignals{0,1,2}.
* ioctl.c: Remove definitions of ioctlent{,0,1,2} and nioctlents{,0,1,2}.
* signal.c: Remove definitions of signalent{,0,1,2} and nsignals{,0,1,2}.
* syscall.c: Move above definitions to this file. Make them static const
or enums if suitable.
2011-08-20 04:12:33 +04:00
extern const char * const * errnoent ;
2004-09-03 Roland McGrath <roland@redhat.com>
* syscall.c (sysent0, sysent1, sysent2, sysent): Add const to defn.
(nsyscalls0, nsyscalls1, nsyscalls2): Likewise.
(errnoent0, errnoent1, errnoent2, errnoent): Likewise.
(nerrnos0, nerrnos1, nerrnos2): Likewise.
* signal.c (signalent0, signalent1, signalent2): Likewise.
(nsignals0, nsignals1, nsignals2): Likewise.
(signame): LIkewise.
* ioctl.c (ioctlent0, ioctlent1, ioctlent2): Likewise.
(nioctlents0, nioctlents1, nioctlents2): Likewise.
(ioctl_lookup, ioctl_next_match): Likewise.
* defs.h: Update decls.
* io.c (sys_ioctl): Update users.
2004-09-04 07:53:10 +04:00
extern const char * const * signalent ;
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extern const struct_ioctlent * ioctlent ;
# else
# define sysent sysent0
# define errnoent errnoent0
# define signalent signalent0
# define ioctlent ioctlent0
# endif
extern unsigned nsyscalls ;
extern unsigned nerrnos ;
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extern unsigned nsignals ;
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extern unsigned nioctlents ;
extern unsigned num_quals ;
1999-02-19 03:21:36 +03:00
2013-02-16 17:25:56 +04:00
/*
* If you need non - NULL sysent [ scno ] . sys_func and sysent [ scno ] . sys_name
*/
2013-02-16 16:22:38 +04:00
# define SCNO_IS_VALID(scno) \
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( ( unsigned long ) ( scno ) < nsyscalls & & sysent [ scno ] . sys_func )
/* Only ensures that sysent[scno] isn't out of range */
# define SCNO_IN_RANGE(scno) \
( ( unsigned long ) ( scno ) < nsyscalls )
