* fork-child.c (fork_inferior): Set inferior_pid before calling
init_trace_fun. Move the code which gets us through the shell to new function startup_inferior. * inferior.h: Declare startup_inferior. * procfs.c (procfs_init_inferior), inftarg.c (ptrace_him): Call startup_inferior. * m3-nat.c (m3_trace_him): Call intercept_exec_calls. * config/nm-m3.h: Don't define STARTUP_INFERIOR. * config/i386/tm-i386m3.h, config/ns32k/tm-ns32k.h, config/mips/tm-mipsm3.h: Don't define START_INFERIOR_TRAPS_EXPECTED.
This commit is contained in:
Jim Kingdon
parent
73e7e44744
commit
bc28a06cc1
@ -1,5 +1,16 @@
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Wed Oct 27 13:43:07 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
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* fork-child.c (fork_inferior): Set inferior_pid before calling
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init_trace_fun. Move the code which gets us through the shell
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to new function startup_inferior.
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* inferior.h: Declare startup_inferior.
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* procfs.c (procfs_init_inferior), inftarg.c (ptrace_him):
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Call startup_inferior.
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* m3-nat.c (m3_trace_him): Call intercept_exec_calls.
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* config/nm-m3.h: Don't define STARTUP_INFERIOR.
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* config/i386/tm-i386m3.h, config/ns32k/tm-ns32k.h,
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config/mips/tm-mipsm3.h: Don't define START_INFERIOR_TRAPS_EXPECTED.
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* m68k-stub.c: Change vector 13 from SIGFPE to SIGBUS.
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Tue Oct 26 22:05:03 1993 Jim Kingdon (kingdon@deneb.cygnus.com)
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@ -40,17 +40,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* we can do it */
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#define ATTACH_DETACH 1
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/* number of traps that happen between exec'ing the shell
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* to run an inferior, and when we finally get to
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* the inferior code. This is 2 on most implementations.
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*
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* On Mach 3.0 it is the number of exec() system calls before
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* the task contains the debugged program. It is always 2 when
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* using the shell to start up the program.
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*/
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#undef START_INFERIOR_TRAPS_EXPECTED
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#define START_INFERIOR_TRAPS_EXPECTED 2
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/* Define this if the C compiler puts an underscore at the front
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of external names before giving them to the linker. */
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@ -56,14 +56,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "mips/tm-mips.h"
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/*
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* On Mach 3.0 this is the number of exec() system calls before
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* the task contains the debugged program. It is always 2 when
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* using the shell to start up the program.
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*/
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#undef START_INFERIOR_TRAPS_EXPECTED
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#define START_INFERIOR_TRAPS_EXPECTED 2
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/* Address of end of user stack space.
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* for MACH, see <machine/vmparam.h>
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*/
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@ -39,10 +39,6 @@ extern thread_t current_thread;
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*/
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extern int must_suspend_thread;
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/* Startup the inferior task and suspend it after the correct code is loaded */
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#define STARTUP_INFERIOR(x) intercept_exec_calls(x)
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#define PREPARE_TO_PROCEED(select_it) mach3_prepare_to_proceed(select_it)
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/* Try to get the privileged host port for authentication to machid
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@ -43,17 +43,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* we can do it */
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#define ATTACH_DETACH 1
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/* number of traps that happen between exec'ing the shell
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* to run an inferior, and when we finally get to
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* the inferior code. This is 2 on most implementations.
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*
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* On Mach 3.0 it is the number of exec() system calls before
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* the task contains the debugged program. It is always 2 when
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* using the shell to start up the program.
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*/
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#undef START_INFERIOR_TRAPS_EXPECTED
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#define START_INFERIOR_TRAPS_EXPECTED 2
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#define INVALID_FLOAT(p, s) isa_NAN(p, s)
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/* Address of end of stack space.
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@ -60,8 +60,6 @@ fork_inferior (exec_file, allargs, env, traceme_fun, init_trace_fun)
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char *shell_file;
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static char default_shell_file[] = SHELL_FILE;
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int len;
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int pending_execs;
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int terminal_initted;
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/* Set debug_fork then attach to the child while it sleeps, to debug. */
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static int debug_fork = 0;
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/* This is set to the result of setpgrp, which if vforked, will be visible
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@ -241,28 +239,35 @@ fork_inferior (exec_file, allargs, env, traceme_fun, init_trace_fun)
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init_thread_list();
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inferior_pid = pid; /* Needed for wait_for_inferior stuff below */
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/* Now that we have a child process, make it our target, and
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initialize anything target-vector-specific that needs initializing. */
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(*init_trace_fun)(pid);
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/* We are now in the child process of interest, having exec'd the
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correct program, and are poised at the first instruction of the
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new program. */
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#ifdef SOLIB_CREATE_INFERIOR_HOOK
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SOLIB_CREATE_INFERIOR_HOOK (pid);
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#endif
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}
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/* Accept NTRAPS traps from the inferior. */
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void
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startup_inferior (ntraps)
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int ntraps;
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{
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int pending_execs = ntraps;
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int terminal_initted;
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/* The process was started by the fork that created it,
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but it will have stopped one instruction after execing the shell.
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Here we must get it up to actual execution of the real program. */
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inferior_pid = pid; /* Needed for wait_for_inferior stuff below */
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clear_proceed_status ();
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/* We will get a trace trap after one instruction.
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Continue it automatically. Eventually (after shell does an exec)
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it will get another trace trap. Then insert breakpoints and continue. */
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#ifdef START_INFERIOR_TRAPS_EXPECTED
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pending_execs = START_INFERIOR_TRAPS_EXPECTED;
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#else
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pending_execs = 2;
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#endif
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init_wait_for_inferior ();
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terminal_initted = 0;
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@ -301,11 +306,4 @@ fork_inferior (exec_file, allargs, env, traceme_fun, init_trace_fun)
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}
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}
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stop_soon_quietly = 0;
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/* We are now in the child process of interest, having exec'd the
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correct program, and are poised at the first instruction of the
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new program. */
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#ifdef SOLIB_CREATE_INFERIOR_HOOK
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SOLIB_CREATE_INFERIOR_HOOK (pid);
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#endif
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}
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@ -1143,6 +1143,9 @@ m3_trace_him (pid)
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setup_exception_port ();
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xx_debug ("Now the debugged task is created\n");
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/* One trap to exec the shell, one to exec the program being debugged. */
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intercept_exec_calls (2);
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}
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setup_exception_port ()
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@ -1523,6 +1523,9 @@ procfs_init_inferior (pid)
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create_procinfo (pid);
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add_thread (pid); /* Setup initial thread */
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/* One trap to exec the shell, one to exec the program being debugged. */
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startup_inferior (2);
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}
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/*
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