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strace/ChangeLog
Wichert Akkerman 76baf7c9f6 Initial revision
1999-02-19 00:21:36 +00:00

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Sun Oct 27 22:28:00 1996 J. Richard Sladkey <jrs@world.std.com>
* util.c (umovestr) [LINUX]: Handle Linux like SunOS4
instead of SVR4. That is, read a few bytes at a time
to avoid overrunning the end of the stack.
Fri May 31 01:48:49 1996 J. Richard Sladkey <jrs@world.std.com>
* version.c: Version 3.1 is released.
Thu May 23 01:04:43 1996 J. Richard Sladkey <jrs@world.std.com>
* aclocal.m4 (AC_DECL_SYS_ERRLIST): Try looking in stdio.h
as well since that's where glibc declares it. Go figure.
* signal.c (sys_sigreturn) [ALPHA]: Use sigcontext
instead of sigcontext_struct since glibc v5+ apparently
plays games with the native OS namespace.
From David Mosberger-Tang <davidm@AZStarNet.com>.
Mon May 20 23:17:14 1996 J. Richard Sladkey <jrs@world.std.com>
* version.c: Version 3.0.14 is released.
* aclocal.m4 (AC_STRUCT_MSG_CONTROL): New macro.
* configure.in: Add call to AC_STRUCT_MSG_CONTROL.
* net.c (printmsghdr): Handle BSD 4.3 and 4.4 msghdr members
differently.
Reported by Henrik Storner <storner@osiris.ping.dk>.
* configure.in: (AC_CHECK_{HEADERS,FUNCS}): Add checks for
sys/filio.h and sys/stream.h and remove check for poll.
* desc.c (decode_select, sys_select, sys_oldselect) [LINUX]:
Handle old and new styles of argument passing for select on Linux.
* ioctl.c, stream.c: Conditionalize stream code on presence of
sys/stream.h instead of poll because glibc implements poll but
not the rest of the stream interface.
* signal.c [LINUX]: Standardize on the name sigcontext_struct.
(sys_sigprocmask) [ALPHA]: Handle OSF flavor which is more like
sigsetmask.
* term.c (term_ioctl): Use _VMIN, if present, for TC{G,S}ETA*.
* util.c (umoven, umovestr): Move data in long-sized chunks
at a time, instead of hard coding it to be 4.
From David Mosberger-Tang <davidm@AZStarNet.com>.
Mon May 20 01:19:36 1996 J. Richard Sladkey <jrs@world.std.com>
* version.c: Version 3.0.13 is released.
* configure.in (AC_CHECK_HEADERS): Add check for asm/sigcontext.h.
* signal.c [HAVE_ASM_SIGCONTEXT_H]: Conditionally include
asm/sigcontext.h to define sigcontext_struct and don't define it
locally if the header is present.
* syscall.c (nerrnos{0,2}): Correct size computation.
* Makefile.in: Remove dependencies and rules relating to files
normally found in the os directory. Because of the new scheme we
don't know precisely where they come from. Sigh.
* signalent.sh: Make it work for sunos4, linux, and svr4.
* {sunos4,linux{,/alpha},svr4}/Makefile.in: Make rules correspond
to traditional make syntax. Add signalent.h to files which can
unconditionally be rebuilt. Prevent signalent.h from being
unconditionally being rebuilt since it's customized.
* {sunos4,linux{,/alpha},svr4}/{ioctlent,errnoent,signalent}.h:
Use versions built by {ioctlent,errnoent,signaltent}.sh.
* sunos4/ioctlent.sh: Work around sprintf troubles with SunOS
4.1.4 and gcc 2.7.2.
Sun May 19 17:14:09 1996 J. Richard Sladkey <jrs@world.std.com>
* configure.in, Makefile.in: Add OSARCH concept to finish
build support for the alpha.
* Makefile.in, linux/Makefile.in: Rewrite clean, distclean,
and maintainer-clean rules.
* defs.h, ioctlsort.c: Make ioctl code member unsigned.
* ioctl.c, ioctlsort.c (compare): Perform explicit checking
for less, greater, and equal since subtraction on two's
complement numbers isn't an order relation (it isn't transitive)!
* linux/Makefile.in: Add rules for the signalent.h file.
* linux/alpha/Makefile.in: New file.
Sun May 19 01:12:28 1996 J. Richard Sladkey <jrs@world.std.com>
* version.c: Version 3.0.12 is released.
* linux{,alpha}/ioctlent.sh: Tweak for recent kernels.
From Michael E Chastain <mec@duracef.shout.net>.
* defs.h (SUPPORTED_PERSONALITES, DEFAULT_PERSONALITY): New.
* syscall.c (set_personality): New.
* strace.c (main): Call set_personality.
* defs.h, syscall.c, ioctl.c, signal.c: Make sysent, errnoent,
ioctlent, and signalent indirect pointers and redirect them
based on personality.
* {sunos4,svr4,linux{,/alpha}}/signalent.h: New files.
Suggested by Tom Dyas <tdyas@eden.rutgers.edu>.
* util.c (upeek): Handle case where ptrace returns a long
and sizeof(long) != sizeof(int).
From Richard Henderson <richard@twiddle.tamu.edu>
Fri May 17 21:03:36 1996 J. Richard Sladkey <jrs@world.std.com>
* version.c: Version 3.0.11 is released.
* many files: Fix more printf warnings for other platforms.
* ipc.c (sys_msgrcv) [LINUX]: Conditionalize definition of ipc_wrapper.
* linux/dummy.h: Handle missing library support for {send,recv}msg.
Reported by Thomas Bogendoerfer <tsbogend@bigbug.franken.de>.
* linux/syscall.h (sys_utimes): Fix a typo in the declaration.
From Thomas Bogendoerfer <tsbogend@bigbug.franken.de>.
Fri May 17 00:50:06 1996 J. Richard Sladkey <jrs@world.std.com>
* version.c: Version 3.0.10 is released.
* Makfile.in: Add os/arch to includes so that a given arch
(like alpha) can override the native arch (like i386).
* configure.in: Check for sendmsg.
* net.c: Make sendmsg and recvmsg dependent on an autoconf
test. Reported by Michael E Chastain <mec@duracef.shout.net>.
* acconfig.h, configure.in: Detect the alpha.
* ioctl.c: Handle the alpha.
* defs.h: Make some members long for the alpha. Define
some register nicknames. Add support for WAITEXECVE.
* file.c [ALPHA]: Support the alpha for statfs. Add
osf_statfs and osf_fstatfs for the alpha. Make damn sure
major and minor results are suitable for passing to printf.
* signal.c, syscall.c: Support the alpha.
* process.c: Add alpha user offsets.
* most files: Use %l? for printf arguments since
most are now longs for the alpha.
* linux/alpha/{errnoent.h,ioctlent.{h,sh},syscallent.h}:
New for the alpha.
From Thomas Bogendoerfer <tsbogend@bigbug.franken.de>.
Wed May 15 00:29:37 1996 J. Richard Sladkey <jrs@world.std.com>
* version.c: Version 3.0.9 is released.
* config.in, config.sub, install-sh: Upgrade to autoconf 2.10.
* linux/dummy.h, linux/syscallent.h, linux/syscall.h: Add recent
Linux kernel version system calls.
Wed Mar 13 01:03:38 1996 J. Richard Sladkey <jrs@world.std.com>
* ipc.c [SUNOS4]: Add SunOS support for decoding IPC calls.
* syscall.c [SUNOS4]: Compile decode_subcall on SunOS and
decode IPC calls using it.
* sunos4/dummy.h: Alias sys_semop to printargs.
* sunos4/syscall.h: Add new pseudo syscalls for IPC.
* sunos4/syscallent.h: Include new subcalls for IPC.
From Matthias Pfaller <leo@dachau.marco.de>.
Tue Feb 13 22:08:25 1996 J. Richard Sladkey <jrs@world.std.com>
* version.c: Version 3.0.8 is released.
* time.c [LINUX]: Explicitly include linux/version.h.
* strace.c (main): Don't let them even *try* to
get strace to attach to itself since some systems
don't handle this case very gracefully.
Reported by David S. Miller <davem@caip.rutgers.edu>.
* Makefile.in (distclean): Fix it for subdirectories.
* sunos4/syscallent.h, svr4/syscallent.h: Fill in the new
sys_flags member for each defined system call.
Fri Dec 8 01:17:28 1995 Rick Sladkey <jrs@world.std.com>
* defs.h (TRACE_*): New flags to describe what class
of system call each system call is.
(sysent): Add sys_flags member.
* syscall.c (sysent): Define (and later undef) abbreviations
for the system call class flags.
(lookup_class): New function to translate strings to
system call class flags.
(qualify): Handle new system call class mechanism.
* linux/syscallent.h: Fill in the new sys_flags member
for each defined system call.
* defs.h (print_sock): Remove redundant and non-K&R C
compatible prototype. From Juergen Weigert
<jnweiger@immd4.informatik.uni-erlangen.de>.
Thu Dec 7 01:17:40 1995 Rick Sladkey <jrs@world.std.com>
* linux/ioctlent.sh: Tweak to improve ioctl accuracy.
From Michael E Chastain <mec@duracef.shout.net>.
* system.c (includes) [LINUX]: Add linux/nfs.h for recent
kernels. From Michael E Chastain <mec@duracef.shout.net>.
Wed Dec 6 21:52:28 1995 Rick Sladkey <jrs@world.std.com>
* file.c (sprintfstype): Enclose string result in double
quotes.
* time.c (sys_adjtimex) [LINUX]: Conditionalize
constantly evolving timex structure.
From Aaron Ucko <UCKO@VAX1.ROCKHURST.EDU>.
* defs.h, syscall.c, strace.c: Rename syscall to
trace_syscall and change prototype and all callers
because of broken Linux shared libraries.
From Aaron Ucko <UCKO@VAX1.ROCKHURST.EDU>.
* Makefile.in (clean): Check for a file with test -f not
test -d. From Aaron Ucko <UCKO@VAX1.ROCKHURST.EDU>.
Tue Sep 26 02:32:31 1995 Rick Sladkey <jrs@world.std.com>
* version.c: Version 3.0.7 is released.
* util.c (string_quote): Fix thinko which caused core
dumps for strings with quotes in them.
Reported by Marty Leisner <leisner@sdsp.mc.xerox.com>.
* linux/Makefile.in (errnoent.h rule): Grab all errno.h
files from /usr/include, not just the linux one.
From Michael E Chastain <mec@duracef.shout.net>.
* linux/errnoent.sh: Total rewrite to handle more ioctls with
fewer false positives on more kernel flavors.
From Michael E Chastain <mec@duracef.shout.net>.
Mon Sep 4 01:29:22 1995 Rick Sladkey <jrs@world.std.com>
* version.c: Version 3.0.6 is released.
* linux/dummy.h, linux/syscall.h, linux/syscallent.h: Add
sys_msync.
* mem.c (mctl_funcs, mctl_lockas, sys_mctl): Conditionalize
on MC_SYNC instead of HAVE_MCTL.
(mctl_sync): Conditionalize on MS_ASYNC instead of HAVE_MCTL.
(sys_msync): New function.
Sat Sep 2 12:06:04 1995 Rick Sladkey <jrs@world.std.com>
* linux/dummy.h, linux/syscall.h, linux/syscallent.h: Add
sys_flock and sys_getdents.
* desc.c (flockcmds, sys_flock): Conditionalize on LOCK_SH
not SUNOS4.
* file.c (sys_getdents): Define unconditionally and handle
LINUX case.
* strace.c (main): Disallow username option unless both real
and effective uids are root.
Wed Aug 30 01:29:58 1995 Rick Sladkey <jrs@world.std.com>
* strace.c (main): Ensure that run_uid and run_gid are
always set to something meaningful.
(main, newoutf) [!SVR4]: Swap real and effective uids while
opening any output files.
(main) [!SVR4]: Treat effective uid of root as a request
to handle suid binaries correctly using the real uid of
the invoking user.
Sat Aug 19 00:06:08 1995 Rick Sladkey <jrs@world.std.com>
* Makefile.in: Add `|| true' to clean rule because
although GNU make 3.74 uses `sh -c' to invoke commands
every other make in the world uses `sh -ec'.
* syscall.c (syscall) [SVR4, MIPS]: The fifth and subsequent
arguments appear to be stored on the stack, not in the
registers following A3 (empirical result).
* defs.h: Add prototype for printsock.
* svr4/dummy.h: Remove generic handling of sys_mount.
* system.c [SVR4, MIPS]: Include several system headers to cleanly
get access to SGI mount information.
(mount_flags, nfs_flags) [SVR4, MIPS]: New objects.
(sys_mount) [SVR4, MIPS]: New function.
(sys_mount) [SVR4, !MIPS]: New function.
Tue Jul 4 00:30:34 1995 Rick Sladkey <jrs@world.std.com>
* version.c: Version 3.0.5 is released.
* desc.c, resource.c, strace.c, syscall.c, time.c: Cast tv_sec and
tv_usec members to long when using printf.
* ipc.c: Omit define of __KERNEL__.
({MSG,SEM,SHM}_{STAT,INFO}): Explicitly define those things we
want which __KERNEL__ used to provide.
(sys_msgrcv): Change reference to ipc_kludge structure to
look-alike ipc_wrapper to avoid dependence on __KERNEL__.
mem.c (mmap_flags) [MAP_{GROWSDOWN,DENYWRITE,EXECUTABLE}]: Add
Linux specific options.
syscall.c: Use SYS_ERRLIST_DECLARED instead of guessing.
[E{RESTART{SYS,NO{INTR,HAND}},NOIOCTLCMD}]: Explicitly define
instead of depending of __KERNEL__.
term.c: Cast c_{i,o,c,l}flag to long when using printf.
Tue Jun 6 00:27:48 1995 Rick Sladkey <jrs@world.std.com>
* aclocal.m4 (AC_DECL_SYS_ERRLIST, AC_DECL__SYS_SIGLIST): New.
* configure.in: Call AC_DECL_SYS_ERRLIST, AC_DECL_SYS_SIGLIST,
and AC_DECL__SYS_SIGLIST.
* acconfig.h (SYS_ERRLIST_DECLARED): New.
* strace.c (strerror): Use SYS_ERRLIST_DECLARED.
(strsignal): Use SYS_SIGLIST_DECLARED.
net.c (sys_socket): Omit inadvertent surplus comma when
protocol family isn't PF_INET.
util.c (dumpstr): Fix incorrect printing of one too many
characters when the length is not an even multiple of 16 bytes.
Reported by Juergen Weigert
<jnweiger@immd4.informatik.uni-erlangen.de>.
Thu May 4 23:37:47 1995 Rick Sladkey <jrs@world.std.com>
* ioctl.c (compare): Change prototype to match POSIX qsort.
* signal.c (sigishandled) [SVR4]: Omit everything after return.
* strace.c (trace) [SVR4]: Break out of for loop instead of
returning when finished so final return statement is executed.
* syscall.c (internal_syscall): Add more SYS_wait* variations.
(syscall) [LINUX]: Correct typo which commented out the M68K
argument to ifdef.
* util.c (printstr): Cast unsigned char pointer argument
to char pointer in umovestr call.
(dumpstr): Likewise for umoven.
Wed May 3 01:10:56 1995 Rick Sladkey <jrs@world.std.com>
* version.c: Version 3.0.4 is released.
* signal.c (sys_sigblock): Move after the definition of
sys_sigsetmask that it calls to avoid an implicit declaration.
* stream.c (transport_user_options, transport_server_options):
Only needed if TI_BIND is defined.
* configure.in: Add -Wno-implicit to WARNFLAGS on SunOS 4.x.
* process.c (internal_fork) [SVR4]: Fix a typo that omitted
the tcp arguement from the call to exiting. Add getrval2
check so no fork processing is done in the child.
(printwaitn): Initialize exited so that its value is defined
for all flows of execution.
Tue May 2 22:39:42 1995 Rick Sladkey <jrs@world.std.com>
* linux/dummy.h: Add aliases for sysfs, personality, afs_syscall,
setfsuid, setfsgid, and _llseek syscalls.
* linux/syscall.h: Add prototypes for them.
* linux/syscallent.h: Add them to the syscall entries table.
* system.c (headers) [LINUX]: Include linux/unistd.h to get __NR_*
defines and conditionally include linux/personality.h if
__NR_personality is defined.
(personality_options) [LINUX]: New table.
(sys_personality) [LINUX]: New function.
Tue May 2 00:20:39 1995 Rick Sladkey <jrs@world.std.com>
* strace.c (trace) [!SVR4]: Change forever loop to one predicated
on the number of traced processes so that we can have untraced
children (e.g. via popen).
* strace (main) [!SVR4]: Call fake_execve to get the actual
exec and its arguments into the trace.
(environ): Declare it.
* process.c (fake_execve): New function.
(headers): Include sys/syscall.h to get SYS_* defines.
* process.c (sys_execv, sys_execve): Surround argument annotations
with C comment delimiters.
(printargv, printargc): The arg vector is an array of char pointers
not ints.
* strace.c (printleader): Also check for multiple -p arguments
when deciding whether to print the pid field.
* strace.c (strerror) [!HAVE_STRERROR]: New function.
* defs.h (strerror, strsignal): Add these prototypes if we provide
the functions.
* configure.in (AC_CHECK_FUNCS): Add strerror.
* strace.c (main, proc_poller): Add SIGPIPE to the list of caught
and blocked signals.
* strace.c (main): Add username option. Verify they are root before
letting them use it. Look up the ids in the password file. Set
them just before executing the program.
From Reuben Sumner <rasumner@undergrad.math.uwaterloo.ca>.
Sat Apr 29 00:09:56 1995 Rick Sladkey <jrs@world.std.com>
* version.c: Version 3.0.3 is released.
* system.c (mount_flags) [LINUX]: Omit duplicated MS_NOSUID entry.
From Reuben Sumner <rasumner@undergrad.math.uwaterloo.ca>.
* strace.c (outfname): Initialize to NULL.
(main): Defer output file processing until after arguments.
Allow either a pipe or a bang for command arguments.
Check if outfname is NULL instead of checking outf for stderr.
Reinitialize each startup TCB's outf to fix -p/-o ordering bug.
(droptcb): Reset close TCB's outf to NULL instead of stderr.
(tprintf): Avoid calling vfprintf if outf is NULL.
* strace.c (main): Use popen if -o argument begins with a pipe.
From Marty Leisner <leisner@sdsp.mc.xerox.com>.
* process.c (printstatus): Fix a typo where WIFSIGNALED was meant
but WIFSTOPPED was used.
* Makefile.in: Add an EXTRA_DEFS variable and use it in the .c.o
rule to prevent the comment from being untrue.
Fri Apr 28 22:01:56 1995 Rick Sladkey <jrs@world.std.com>
* strace.c (sys_exit): Move follow fork code to internal_exit.
(sys_fork): Move follow fork code to internal_fork.
(sys_execv, sys_execve): Move follow fork code to internal_exec.
(sys_waitpid, sys_wait4): Move follow fork code to internal_wait.
(vforking): Remove this static variable and check scno in
internal_fork instead.
(internal_exit, internal_fork, internal_exec, internal_wait): New
functions.
* defs.h: Add prototypes for the new internal_* functions.
* syscall.c (syscall): Move syscall entering trace qualifier check
and reprint checking after context decoding and precede them with
a call to internal_syscall. Precede syscall exiting trace
qualifier check with a call to internal_syscall.
(internal_syscall): New function.
* defs.h (struct tcb): Make scno signed.
* strace.c (syscall) Make u_error signed.
[LINUX, I386]: Avoid unsigned cast in eax check.
* syscall.c (sys_indir): Make i, scno, and nargs signed.
* desc.c (sys_select): Make cumlen unsigned
Mon Apr 24 23:52:47 1995 Rick Sladkey <jrs@world.std.com>
* net.c (socktypes): Add SOCK_PACKET.
Sun Apr 2 23:50:39 1995 Rick Sladkey <jrs@world.std.com>
* Makefile (clean): Check explicitly for a Makefile in subdirs
before running make in them.
Sun Mar 26 12:37:21 1995 Rick Sladkey <jrs@world.std.com>
* strace.c [MIPS] (proc_open): Conditionalize run on MIPS.
[MIPS] (detach): Initialize error for MIPS case.
(trace): Initialize ioctl_result and ioctl_errno for overly helpful
compilers.
* syscall.c (decode_subcall): Move variable i into conditionals
that use use it.
* system.c (syssgi_options): Conditionalize SGI_RECVLMSG and
SGI_SET_FPDEBUG that SGI decided to drop. I don't have the stomach
to change them all.
* term.c (term_ioctl): Force [c_[iocl]flags members to long before
printing since we don't know what the size of their type is.
* util.c [SVR4, MIPS] (umoven): Prevent MIPS from using pread even
if autoconf detects it since it seems to either not work or do
something else entirely on Irix 5.3.
Sun Mar 26 00:01:11 1995 Rick Sladkey <jrs@world.std.com>
* version.c: Version 3.0.2 is released.
* linux/dummy.h: Make sys_fchdir like sys_close instead of printargs
so that the file descriptor arg is decimal.
Sat Mar 25 22:50:13 1995 Rick Sladkey <jrs@world.std.com>
* net.c [LINUX] (protocols): Explicitly define all IPPROTO_* entries
because on Linux they are enumerators.
* system.c [LINUX] (mount_flags): Handle renaming of MS_SYNC to
MS_SYNCHRONOUS.
* util.c (printxval): When there is no translation, print the actual
number first and the the default value as a C comment.
* net.c (sys_send, sys_sendto, sys_sendmsg, sys_getsockopt,
sys_setsockopt): Change first argument from unsigned to signed to
cater to the frequent practice of calling system calls with a file
descriptor of -1.
* mem.c (sys_mmap): Likewise.
Sun Mar 19 13:53:52 1995 Rick Sladkey <jrs@world.std.com>
* signal.c [LINUX] (signalent): Handle old and new values of SIGIO.
Sun Dec 11 22:51:51 1994 Rick Sladkey <jrs@world.std.com>
* version.c: Version 3.0.1 is released.
* Makefile.in, configure.in, aclocal.m4: Changes for autoconf 2.0.
* config.guess, config.guess: Update from the FSF.
* install-sh: New from the FSF.
Mon Dec 5 20:51:29 1994 Rick Sladkey <jrs@world.std.com>
* Makefile.in: Add m68k arch.
* acconfig.h (M68K): Add m68k define.
* configure.in: Add detection of arch m68k.
* process.c [M68K] (struct_user_offsets): Support m68k registers and
offsets.
* signal.c [M68K] (sigcontext_struct): Support m68k sigcontext
structure.
[M68K] (sys_sigreturn): Support m68k sigreturn handling.
* syscall.c [M68K] (syscall): Support m68k syscall number register
and errno in d0 instead of eax.
* util.c [M68K] (getpc, printcall, setbpt, clearbpt): Support m68k
program counter in PT_PC instead of EIP.
[M68K] (LOOP): Support m68k loop instruction.
From Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>.
* mem.c [MAP_ANONYMOUS] (mmap_flags): Correct inadvertent reference
to MAP_FIXED instead of MAP_ANONYMOUS.
From Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>.
* signal.c [LINUX] (signalent): Signal 30 is now SIGPWR.
From Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>.
Mon Dec 5 01:05:46 1994 Rick Sladkey <jrs@world.std.com>
* defs.h (tprintf): Fix typo in non-gcc ansi prototype for tprintf.
Reported by Thanh Ma <tma@encore.com>.
* strace.c (cleanup): Send SIGCONT before SIGTERM because Linux
1.1.62 doesn't continue a traced child when the parent exits.
Reported by Matt Day <mday@artisoft.com>.
* system.c [LINUX]: Include netinet/in.h before arpa/inet.h.
* util.c (printstr): Fix longstanding bug in notating string
continuation.
* strace.c [SVR4] (proc_open): Specifically wait for the child the
child to go into the execve syscall to avoid spurious traces.
[LINUX] (detach): Conditionalize the status variable.
Sun Dec 4 23:21:42 1994 Rick Sladkey <jrs@world.std.com>
* Makefile.in: Add mips arch.
* acconfig.h (MIPS): Add mips define.
* configure.in: Add detection of opsys irix5 and arch mips. Check
for prctl function.
Check for sys/sysconfig.h header.
* defs.h (MAX_ARGS): Bump maximum syscall arguments from 8 to 32.
* file.c [SVR4]: Include sys/cred.h.
(access_flags): Update access flags for SGI.
(sprinttime): Change type of sprinttime argument from unsigned
long to time_t.
* process.c [HAVE_PRCTL]: Include sys/prctl.h.
[HAVE_PRCTL] (prctl_options, sys_prctl): New for SGI.
(printsiginfo): Conditionally compile SI_TIMER and SI_MESGQ.
Cast si_band member to long before printing.
* signal.c (sigact_flags): Add _SA_BSDCALL for SGI.
(sigprocmaskcmds): Add SIG_SETMASK32 for SGI.
* strace.c [SVR4] [MIPS]:
(foobar): New dummy signal handler.
(main): Install a dummy signal handler in the child before pausing
to work around an SGI bug in PRSABORT.
(proc_open): Send a interrupt to the child instead of aborting the
syscall which doesn't work on Irix5.2.
* svr4/dummy.h: Add new unfinished SGI syscalls
(e.g. sys_sysmp, sys_sginap, etc.). Handle some SGI syscalls like
existing calls (e.g. sys_ksigaction like sys_sigaction).
Printargs does the print thing for sys_sethostid.
* svr4/syscall.h: Declare all new SGI syscalls.
(SGI_KLUDGE): Define syscall table starting index to be 1 for SGI
and add it to all subcall entry points.
(SYS_pgrpsys_subcall, SYS_sigcall_subcall, SYS_context): Don't
decode as subcalls on MIPS. Instead, use the normal syscalls.
* svr4/syscallent.h [MIPS]: Lead syscall table with a dummy entry
since SGI syscall numbers are off by one.
[MIPS] (sys_pgrpsys): Rename to sys_setpgrp on SGI.
[MIPS] (sys_xenix): Rename to sys_syssgi on SGI.
[MIPS] (sys_sysmachine): Rename to sys_sysmips on SGI.
[MIPS]: Conditionalize SVR4 extension into SGI and Solaris classes.
* syscall.c (dumpio): Validate descriptor against MAX_QUALS.
[HAVE_PR_SYSCALL] (syscall): Conditionalize SYS_vfork.
[MIPS] (syscall): Add SGI section for decoding u_error and u_rval.
Add workaround for broken SGI pr_sysarg on syscall entry.
[SVR4] (syscall): Conditionalize subcall decoding for
SYS_ptrpsys_subcall, SYS_sigcall_subcall and SYS_context_subcall.
[SVR4] [MIPS] (getrval2): Handle SGI.
* syscallent.sh: Dork the sed line to be choosier about SYS_ lines.
* system.c [HAVE_SYSCONFIG_H]: Include sys/sysconfig.h.
[MIPS] (syssgi_options, sys_syssgi): New for SGI.
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