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Text File  |  1992-03-17  |  14.8 KB  |  552 lines
  1. # A process is either (1) running, (2) waiting from a call to Sprite, or (3)
  2. # waiting from a direct kernel call (or for other server).  Killing or simply
  3. # suspending the process should be simple (since we have the thread's control
  4. # port).  Forcing it to exec a handler is a bit more complicated (e.g., do a
  5. # thread_suspend then a thread_abort then muck with the thread's registers),
  6. # and you have to make sure you get the Sprite state right.  
  7. #
  8. # The really nasty problem is synchronizing with the thread--e.g., don't force
  9. # it to execute a signal handler if it's in the middle of a Mach system call
  10. # (which you probably don't know how to restart).  So, add code similar to
  11. # that from UX so that the process can get information about pending signals
  12. # and call the handler synchronously.
  13. #
  14. # Ditch the sig monitor lock because it adds complexity and doesn't seem to
  15. # buy anything compared to just locking the PCB.
  16. #
  17. # Use a sigtramp routine to call the signal handler, rather than using
  18. # a trap to return to the kernel.
  19. # 
  20.  
  21. LocalSend            # Get rid of sig monitor lock; may also want to
  22.                 # special-case MIGHOME.  
  23. SIGMIG                # (SIGBUS in Unix) keep (never generate
  24.                 # SIGBUS when converting exceptions to signals)
  25.     Include/user/sys/signal.h
  26. SIGUSR1                # (same as SIGEMSG in Mach/Unix) ignore.
  27.     Include/user/sys/signal.h
  28.     mach/ds5000.md/compatSig.h
  29.     mach/ds5000.md/ultrixSignal.h
  30.     mach/ds3100.md/compatSig.h
  31.     mach/ds3100.md/ultrixSignal.h
  32.     mach/symm.md/machDynixSignal.h
  33.     libc/sun3.md/compatSig.h
  34.     libc/sun4.md/compatSig.h
  35.     libc/sun4c.md/compatSig.h
  36.     libc/symm.md/compatSig.h
  37. SIGUSR2                # (same as SIGMSG in Mach/Unix) See SIGUSR1.
  38.     Include/user/sys/signal.h
  39.     mach/ds5000.md/compatSig.h
  40.     mach/ds5000.md/ultrixSignal.h
  41.     mach/ds3100.md/compatSig.h
  42.     mach/ds3100.md/ultrixSignal.h
  43.     mach/symm.md/machDynixSignal.h
  44.     libc/sun3.md/compatSig.h
  45.     libc/sun4.md/compatSig.h
  46.     libc/sun4c.md/compatSig.h
  47.     libc/symm.md/compatSig.h
  48. SIG_ACCESS_VIOL            # keep; map from exc. code
  49.                 # KERN_PROTECTION_FAILURE.
  50.     mach/sun3.md/machCode.c
  51.     mach/sun4.md/machCode.c
  52.     mach/sun4.md/machFPUGlue.c
  53.     mach/ds5000.md/machCode.c
  54.     mach/ds3100.md/machCode.c
  55. SIG_ADDR_ERROR            # keep; map from exc. code
  56.                 # KERN_INVALID_ADDRESS.
  57.     mach/sun3.md/machCode.c
  58.     mach/sun4.md/machCode.c
  59.     mach/sun4.md/machFPUGlue.c
  60. SIG_ADDR_FAULT            # keep; map from EXC_BAD_ACCESS.
  61.     mach/sun3.md/machCode.c
  62.     mach/sun4.md/machCode.c
  63.     mach/sun4.md/machFPUGlue.c
  64.     mach/ds5000.md/compatSig.h
  65.     mach/ds5000.md/machCode.c
  66.     mach/ds3100.md/compatSig.h
  67.     mach/ds3100.md/machCode.c
  68.     libc/sun3.md/compatSig.h
  69.     libc/sun4.md/compatSig.h
  70.     sig/signals.c
  71. SIG_ARITH_FAULT            # keep; map from EXC_ARITHMETIC.
  72.     mach/sun3.md/machCode.c
  73.     mach/sun4.md/machFPUGlue.c
  74.     mach/ds5000.md/compatSig.h
  75.     mach/ds5000.md/machCode.c
  76.     mach/ds3100.md/compatSig.h
  77.     mach/ds3100.md/machCode.c
  78.     libc/sun3.md/compatSig.h
  79.     libc/sun4.md/compatSig.h
  80.     sig/signals.c
  81. SIG_BAD_TRAP            # keep; map from EXC_MIPS_RESOPND.
  82.     mach/sun3.md/machCode.c
  83.     mach/ds5000.md/machCode.c
  84.     mach/ds3100.md/machCode.c
  85. SIG_BAD_SYS_CALL        # don't use.
  86. SIG_BLOCK            # (Posix) Ignore for now.
  87.     mach/ds5000.md/ultrixSignal.h
  88.     mach/ds3100.md/ultrixSignal.h
  89. SIG_BREAKPOINT            # keep; map from EXC_BREAKPOINT.
  90.     mach/sun3.md/machCode.c
  91.     mach/sun4.md/machCode.c
  92.     mach/ds5000.md/machCode.c
  93.     mach/ds3100.md/machCode.c
  94.     sig/signals.c
  95. SIG_CATCH            # (UNIX) keep.
  96.     mach/ds5000.md/ultrixSignal.h
  97.     mach/ds3100.md/ultrixSignal.h
  98. SIG_CHILD            # keep.
  99.     mach/ds5000.md/compatSig.h
  100.     mach/ds3100.md/compatSig.h
  101.     libc/sun3.md/compatSig.h
  102.     libc/sun4.md/compatSig.h
  103.     proc/procExit.c
  104. SIG_CHK                # (sun3 exception code) keep
  105.     Include/user/sigMach.h
  106.     mach/sun3.md/machCode.c
  107. SIG_DEBUG            # keep.
  108.     mach/sun3.md/machCode.c
  109.     mach/ds5000.md/compatSig.h
  110.     mach/ds5000.md/machCode.c
  111.     mach/ds3100.md/compatSig.h
  112.     mach/ds3100.md/machCode.c
  113.     libc/sun3.md/compatSig.h
  114.     libc/sun4.md/compatSig.h
  115.     proc/procExec.c
  116.     sig/signals.c
  117.     vm/vmSubr.c
  118. SIG_DEFAULT_ACTION        # keep.
  119.     mach/ds5000.md/signals.c
  120.     mach/ds3100.md/signals.c
  121.     sig/sigStubs.c
  122.     sig/signals.c
  123. SIG_DFL                # (UNIX) keep.
  124.     mach/ds5000.md/signals.c
  125.     mach/ds5000.md/ultrixSignal.h
  126.     mach/ds3100.md/signals.c
  127.     mach/ds3100.md/ultrixSignal.h
  128.     sig/sigStubs.c
  129. SIG_EMU1010            # (sun3 exception code) keep
  130.     Include/user/sigMach.h
  131.     mach/sun3.md/machCode.c
  132. SIG_EMU1111            # (sun3 exception code) keep
  133.     Include/user/sigMach.h
  134.     mach/sun3.md/machCode.c
  135. SIG_ERR                # (UNIX) keep.
  136.     mach/ds5000.md/ultrixSignal.h
  137.     mach/ds3100.md/ultrixSignal.h
  138. SIG_FP_EXCEPTION        # (mips SIG_ILL_INST subcode: we got an fp
  139.                 # interrupt and would like to emulate the
  140.                 # instruction, but it turns out not to be an
  141.                 # fp instruction) keep; eventually map from
  142.                 # EXC_ARITHMETIC with EXC_MIPS_FLT_UNIMP
  143.                 # subcode (but don't use initially because of
  144.                 # problems with the mipsfree floating point
  145.                 # support).
  146.     Include/user/sigMach.h
  147.     mach/ds5000.md/machCode.c
  148.     mach/ds3100.md/machCode.c
  149. SIG_FP_INEXACT_RESULT        # (sun3 exception code) keep
  150.     Include/user/sigMach.h
  151.     mach/sun3.md/machCode.c
  152. SIG_FP_NAN            # (sun3 exception code) keep
  153.     Include/user/sigMach.h
  154.     mach/sun3.md/machCode.c
  155. SIG_FP_OPERAND_ERROR        # (sun3 exception code) keep
  156.     Include/user/sigMach.h
  157.     mach/sun3.md/machCode.c
  158. SIG_FP_OVERFLOW            # (sun3 exception code) keep
  159.     Include/user/sigMach.h
  160.     mach/sun3.md/machCode.c
  161. SIG_FP_UNDERFLOW        # (sun3 exception code) keep
  162.     Include/user/sigMach.h
  163.     mach/sun3.md/machCode.c
  164. SIG_FP_UNORDERED_COND        # (sun3 exception code) keep
  165.     Include/user/sigMach.h
  166.     mach/sun3.md/machCode.c
  167. SIG_FP_ZERO_DIV            # (sun3 exception code) keep
  168.     Include/user/sigMach.h
  169.     mach/sun3.md/machCode.c
  170. SIG_HANDLE_ACTION        # keep.  
  171.     mach/ds5000.md/signals.c
  172.     mach/ds3100.md/signals.c
  173.     sig/sigStubs.c
  174.     sig/signals.c
  175. SIG_HOLD            # (UNIX) keep.
  176.     mach/ds5000.md/ultrixSignal.h
  177.     mach/ds3100.md/ultrixSignal.h
  178. SIG_IGN                # (UNIX) keep.
  179.     mach/ds5000.md/signals.c
  180.     mach/ds5000.md/ultrixSignal.h
  181.     mach/ds3100.md/signals.c
  182.     mach/ds3100.md/ultrixSignal.h
  183.     sig/sigStubs.c
  184. SIG_IGNORE_ACTION        # keep.
  185.     mach/ds5000.md/signals.c
  186.     mach/ds3100.md/signals.c
  187.     sig/sigStubs.c
  188.     sig/signals.c
  189. SIG_ILL_INST            # keep; map from EXC_BAD_INSTRUCTION.
  190.     mach/sun3.md/machCode.c
  191.     mach/sun4.md/machCode.c
  192.     mach/sun4.md/machFPUGlue.c
  193.     mach/ds5000.md/compatSig.h
  194.     mach/ds5000.md/machCode.c
  195.     mach/ds3100.md/compatSig.h
  196.     mach/ds3100.md/machCode.c
  197.     libc/sun3.md/compatSig.h
  198.     libc/sun4.md/compatSig.h
  199.     sig/signals.c
  200. SIG_ILL_INST_CODE        # keep; for mips, map from
  201.                 # EXC_BAD_INSTRUCTION, subcode
  202.                 # EXC_MIPS_RESOPND.
  203.     mach/sun3.md/machCode.c
  204.     mach/sun4.md/machCode.c
  205.     mach/sun4.md/machFPUGlue.c
  206.     mach/ds5000.md/machCode.c
  207.     mach/ds3100.md/machCode.c
  208. SIG_INTERRUPT            # keep.
  209.     mach/ds5000.md/compatSig.h
  210.     mach/ds3100.md/compatSig.h
  211.     libc/sun3.md/compatSig.h
  212.     libc/sun4.md/compatSig.h
  213.     sig/signals.c
  214. SIG_INVALID_ACTION        # keep.
  215.     sig/signals.c
  216. SIG_INVALID_SIGNAL        # keep.
  217.     sig/signals.c
  218. SIG_KILL            # keep.
  219.     mach/ds5000.md/compatSig.h
  220.     mach/ds3100.md/compatSig.h
  221.     libc/sun3.md/compatSig.h
  222.     libc/sun4.md/compatSig.h
  223.     proc/procExit.c
  224.     proc/procExec.c
  225.     proc/procMisc.c
  226.     proc/procMigrate.c
  227.     proc/procRemote.c
  228.     sig/sigStubs.c
  229.     sig/sigMigrate.c
  230.     sig/signals.c
  231.     vm/vmPage.c
  232. SIG_KILL_ACTION            # keep
  233.     sig/signals.c
  234. SIG_MIGRATE_ACTION        # keep
  235.     sig/signals.c
  236. SIG_MIGRATE_HOME        # keep
  237.     mach/ds5000.md/compatSig.h
  238.     mach/ds3100.md/compatSig.h
  239.     libc/sun3.md/compatSig.h
  240.     libc/sun4.md/compatSig.h
  241.     proc/procMigrate.c
  242.     proc/procRemote.c
  243.     sig/sigMigrate.c
  244.     sig/signals.c
  245. SIG_MIGRATE_TRAP        # keep.
  246.     mach/ds5000.md/compatSig.h
  247.     mach/ds3100.md/compatSig.h
  248.     libc/sun3.md/compatSig.h
  249.     libc/sun4.md/compatSig.h
  250.     proc/procMigrate.c
  251.     sig/sigMigrate.c
  252.     sig/signals.c
  253. SIG_MIN_SIGNAL            # keep
  254.     sig/sigStubs.c
  255.     sig/signals.c
  256. SIG_NO_CODE            # keep
  257.     mach/sun3.md/machCode.c
  258.     mach/sun4.md/machCode.c
  259.     mach/ds5000.md/machCode.c
  260.     mach/ds3100.md/machCode.c
  261.     dev/devTty.c
  262.     proc/procDebug.c
  263.     proc/procExit.c
  264.     proc/procExec.c
  265.     sig/signals.c
  266. SIG_NUM_ACTIONS            # keep
  267.     sig/sigStubs.c
  268.     sig/signals.c
  269. SIG_NUM_SIGNALS            # keep
  270.     mach/ds5000.md/compatSig.c
  271.     mach/ds3100.md/compatSig.c
  272.     libc/sun3.md/compatSig.c
  273.     libc/sun4.md/compatSig.c
  274.     proc/procDebug.c
  275.     proc/procMisc.c
  276.     proc/procTypes.h
  277.     sig/sigStubs.c
  278.     sig/sigMigrate.c
  279.     sig/signals.c
  280. SIG_OVERFLOW            # (ds exception code) keep; map from
  281.                 # EXC_ARITHMETIC, subcode
  282.                 # EXC_MIPS_FLT_OVERFLOW.
  283.     Include/user/sigMach.h
  284.     mach/ds5000.md/machCode.c
  285.     mach/ds3100.md/machCode.c
  286. SIG_PAUSE_IN_PROGRESS        # keep
  287.     sig/sigInt.h
  288.     sig/signals.c
  289. SIG_PIPE            # keep
  290.     mach/ds5000.md/compatSig.h
  291.     mach/ds3100.md/compatSig.h
  292.     fs/fsStreamOps.c
  293.     fsio/fsioPipe.c
  294.     fspdev/fspdevSrv.c
  295.     libc/sun3.md/compatSig.h
  296.     libc/sun4.md/compatSig.h
  297.     sig/signals.c
  298. SIG_PRIV_INST            # keep; map from EXC_BAD_INSTRUCTION, subcode
  299.                 # EXC_MIPS_PRIVINST.
  300.     mach/sun3.md/machCode.c
  301.     mach/sun4.md/machCode.c
  302. SIG_RESUME            # keep
  303.     mach/ds5000.md/compatSig.h
  304.     mach/ds3100.md/compatSig.h
  305.     libc/sun3.md/compatSig.h
  306.     libc/sun4.md/compatSig.h
  307.     proc/procDebug.c
  308.     proc/procMigrate.c
  309.     sig/signals.c
  310. SIG_SETMASK            # (UNIX) keep
  311.     mach/ds5000.md/ultrixSignal.h
  312.     mach/ds3100.md/ultrixSignal.h
  313. SIG_SUSPEND            # keep
  314.     mach/ds5000.md/compatSig.h
  315.     mach/ds3100.md/compatSig.h
  316.     libc/sun3.md/compatSig.h
  317.     libc/sun4.md/compatSig.h
  318.     sig/sigStubs.c
  319.     sig/signals.c
  320. SIG_SUSPEND_ACTION        # keep
  321.     sig/signals.c
  322. SIG_TERM            # keep
  323.     mach/ds5000.md/compatSig.h
  324.     mach/ds3100.md/compatSig.h
  325.     libc/sun3.md/compatSig.h
  326.     libc/sun4.md/compatSig.h
  327.     sig/signals.c
  328. SIG_TIMER            # keep
  329.     mach/ds5000.md/compatSig.h
  330.     mach/ds3100.md/compatSig.h
  331.     libc/sun3.md/compatSig.h
  332.     libc/sun4.md/compatSig.h
  333.     proc/procTimer.c
  334.     sig/signals.c
  335. SIG_TRACE_TRAP            # keep; map from EXC_BREAKPOINT
  336.     mach/sun3.md/machCode.c
  337.     mach/ds5000.md/machCode.c
  338.     mach/ds3100.md/machCode.c
  339.     sig/signals.c
  340. SIG_TRAPV            # (sun3 exception code) keep
  341.     Include/user/sigMach.h
  342.     mach/sun3.md/machCode.c
  343. SIG_TTY_INPUT            # keep
  344.     mach/ds5000.md/compatSig.h
  345.     mach/ds3100.md/compatSig.h
  346.     fspdev/fspdevSrv.c
  347.     libc/sun3.md/compatSig.h
  348.     libc/sun4.md/compatSig.h
  349.     sig/signals.c
  350. SIG_TTY_OUTPUT            # keep
  351.     mach/ds5000.md/compatSig.h
  352.     mach/ds3100.md/compatSig.h
  353.     fspdev/fspdevSrv.c
  354.     libc/sun3.md/compatSig.h
  355.     libc/sun4.md/compatSig.h
  356.     sig/signals.c
  357. SIG_TTY_SUSPEND            # keep
  358.     mach/ds5000.md/compatSig.h
  359.     mach/ds3100.md/compatSig.h
  360.     libc/sun3.md/compatSig.h
  361.     libc/sun4.md/compatSig.h
  362.     sig/signals.c
  363. SIG_UNBLOCK            # (UNIX) keep.
  364.     mach/ds5000.md/ultrixSignal.h
  365.     mach/ds3100.md/ultrixSignal.h
  366. SIG_URGENT            # keep
  367.     mach/ds5000.md/compatSig.h
  368.     mach/ds3100.md/compatSig.h
  369.     libc/sun3.md/compatSig.h
  370.     libc/sun4.md/compatSig.h
  371. SIG_ZERO_DIV            # (sun3 exception code) keep.
  372.     mach/sun3.md/machCode.c
  373. SigMigSend            # (send a signal to a migrated process) keep.
  374.     sig/sigInt.h
  375.     sig/sigMigrate.c
  376.     sig/signals.c
  377. Sig_Action            # keep
  378.     mach/ds5000.md/signals.c
  379.     mach/ds3100.md/signals.c
  380.     sig/sig.h
  381.     sig/sigStubs.c
  382.     sig/signals.c
  383. Sig_AllowMigration        # keep (disable initially)
  384.     mach/sun3.md/machCode.c
  385.     mach/sun4.md/machCode.c
  386.     mach/ds5000.md/machCode.c
  387.     mach/ds3100.md/machCode.c
  388.     mach/symm.md/machTrap.c
  389.     proc/procMigrate.c
  390.     sig/sig.h
  391.     sig/signals.c
  392. Sig_ChangeState            # (change the signal state of a debugged
  393.                 # process) keep.
  394.     proc/procDebug.c
  395.     sig/sig.h
  396.     sig/signals.c
  397. Sig_CheckForKill        # (extra check for pending kill) delete.
  398.     mach/sun4.md/machTrap.s
  399.     sig/sig.h
  400.     sig/signals.c
  401. Sig_Context            # keep.
  402. Sig_DeencapState        # migration support (keep, but disable
  403.                 # initially)
  404.     proc/procMigrate.c
  405.     sig/sig.h
  406.     sig/sigMigrate.c
  407. Sig_EncapState            # migration support (keep, but disable
  408.                 # initially)
  409.     proc/procMigrate.c
  410.     sig/sig.h
  411.     sig/sigMigrate.c
  412. Sig_Exec            # (initialization for a process that has just
  413.                 # done an exec()) keep.  Nil out sigtramp ptr.
  414.     proc/procExec.c
  415.     sig/sig.h
  416.     sig/signals.c
  417. Sig_Fork            # (initialization for fork()) keep
  418.     proc/procFork.c
  419.     proc/procRpc.c
  420.     sig/sig.h
  421.     sig/signals.c
  422. Sig_GetEncapSize        # migration support (keep, but disable
  423.                 # initially)
  424.     proc/procMigrate.c
  425.     sig/sig.h
  426.     sig/sigMigrate.c
  427. Sig_Handle            # (Determines if need to handle signal and
  428.                 # does some setup) keep.  Fix to allow for
  429.                 # being called with a process other than the
  430.                 # current one; fix to allow signal to be
  431.                 # postponed until the process wants to deal
  432.                 # with the signal (with option to force signal
  433.                 # to be dealt with now).
  434.     mach/sun3.md/machCode.c
  435.     mach/sun4.md/machCode.c
  436.     mach/ds5000.md/machCode.c
  437.     mach/ds3100.md/machCode.c
  438.     mach/symm.md/machTrap.c
  439.     sig/sig.h
  440.     sig/signals.c
  441. Sig_Init            # keep.
  442. Sig_InitiateMigration        # (doesn't exist?)
  443.     proc/procMigrate.c
  444. Sig_Pause            # keep.
  445.     mach/ds5000.md/signals.c
  446.     mach/ds3100.md/signals.c
  447.     sig/sig.h
  448.     sig/sigStubs.c
  449.     sig/signals.c
  450.     sys/sysSysCall.c
  451. Sig_Pending            # pick up the native version you installed
  452.     mach/sun3.md/machCode.c
  453.     mach/ds5000.md/machCode.c
  454.     mach/ds3100.md/machCode.c
  455.     proc/procExit.c
  456.     sig/sig.h
  457.     sync/syncLock.c
  458.     sync/syncUser.c
  459. Sig_ProcInit            # keep.  Nil out the sigtramp pointer.
  460.     proc/procTable.c
  461.     sig/sig.h
  462.     sig/signals.c
  463. Sig_Return            # (restores some state) keep.  Add code to
  464.                 # force thread back to pre-signal execution
  465.                 # point (longjmp just uses SetHoldMask).
  466.     mach/sun3.md/machCode.c
  467.     mach/sun4.md/machCode.c
  468.     mach/ds5000.md/machCode.c
  469.     mach/ds3100.md/machCode.c
  470.     mach/symm.md/machTrap.c
  471.     sig/sig.h
  472.     sig/signals.c
  473. Sig_RpcSend            # keep
  474.     rpc/rpcCall.h
  475.     rpc/rpcStubs.c
  476.     sig/sig.h
  477.     sig/signals.c
  478. Sig_Send            # keep.
  479.     mach/sun3.md/machCode.c
  480.     mach/sun4.md/machCode.c
  481.     mach/sun4.md/machFPUGlue.c
  482.     mach/ds5000.md/machCode.c
  483.     mach/ds3100.md/machCode.c
  484.     mach/symm.md/machTrap.c
  485.     dev/devTty.c
  486.     fs/fsStreamOps.c
  487.     fspdev/fspdevSrv.c
  488.     proc/procExit.c
  489.     proc/procRemote.c
  490.     sig/sig.h
  491.     sig/signals.c
  492.     vm/vmPage.c
  493. Sig_SendProc            # (various checks before passing on
  494.                 # signal; called by Sig_Send; also, this is a
  495.                 # public proc. so that if you can send a
  496.                 # signal when you already have the (locked)
  497.                 # procPtr) keep.  Add code so that the signal
  498.                 # is acted on (e.g., user handler is invoked)
  499.                 # if possible; add argument telling whether
  500.                 # the process has a pending exception; note
  501.                 # that suspending the thread and getting its
  502.                 # state is likely to be expensive, so maybe
  503.                 # for signals with a registered handler, it
  504.                 # might be best to always wait for the program
  505.                 # to ask for the signal.
  506.     mach/sun3.md/machCode.c
  507.     mach/ds5000.md/machCode.c
  508.     mach/ds3100.md/machCode.c
  509.     mach/symm.md/machTrap.c
  510.     proc/procExit.c
  511.     proc/procExec.c
  512.     proc/procTimer.c
  513.     proc/procMisc.c
  514.     proc/procRemote.c
  515.     proc/procMigrate.c
  516.     sig/sig.h
  517.     sig/signals.c
  518.     vm/vmSubr.c
  519. Sig_SetAction            # keep (with changes for system call stub);
  520.                 # add argument to stub to get address
  521.                 # of sigtramp routine.
  522.     mach/ds5000.md/signals.c
  523.     mach/ds3100.md/signals.c
  524.     sig/sig.h
  525.     sig/signals.c
  526.     sys/sysSysCall.c
  527. Sig_SetHoldMask            # keep (with changes for system call stub)
  528.     mach/ds5000.md/compatSig.c
  529.     mach/ds5000.md/signals.c
  530.     mach/ds3100.md/compatSig.c
  531.     mach/ds3100.md/signals.c
  532.     libc/sun3.md/compatSig.c
  533.     libc/sun4.md/compatSig.c
  534.     sig/sig.h
  535.     sig/signals.c
  536.     sys/sysSysCall.c
  537. Sig_Stack            # (stuff pushed onto stack before calling
  538.                 # signal handler) keep.
  539. Sig_UserSend            # rewrite for new system call stub setup.
  540.     mach/ds5000.md/machUNIXSyscall.c
  541.     mach/ds3100.md/machUNIXSyscall.c
  542.     sig/sig.h
  543.     sig/sigStubs.c
  544.     sig/signals.c
  545.     sys/sysSysCall.c
  546.  
  547.  
  548. Local Variables:
  549. mode: xref
  550. fill-column: 78
  551. End:
  552.