Mon Aug 2 08:42:50 1993 Stu Grossman (grossman at cygnus.com)
* gdbserver/remote-inflow.c (create_inferior): Fix comments, and error msg. Setup seperate process group for child. * (write_inferior_memory): Sleep for 1 second and retry on ptrace failure.
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@ -1,3 +1,10 @@
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Mon Aug 2 08:42:50 1993 Stu Grossman (grossman at cygnus.com)
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* gdbserver/remote-inflow.c (create_inferior): Fix comments, and
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error msg. Setup seperate process group for child.
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* (write_inferior_memory): Sleep for 1 second and retry on ptrace
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failure.
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Sun Aug 1 22:58:18 1993 Stu Grossman (grossman at cygnus.com)
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* config/i386/i386lynx.mh (NATDEPFILES): Drop coredep (for now).
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@ -44,8 +44,7 @@ char registers[REGISTER_BYTES];
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#include <sys/ptrace.h>
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/* Start an inferior process and returns its pid.
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ALLARGS is a vector of program-name and args.
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ENV is the environment vector to pass. */
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ALLARGS is a vector of program-name and args. */
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int
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create_inferior (program, allargs)
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@ -60,11 +59,21 @@ create_inferior (program, allargs)
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if (pid == 0)
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{
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int pgrp;
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/* Switch child to it's own process group so that signals won't
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directly affect gdbserver. */
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pgrp = getpid();
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setpgrp(0, pgrp);
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ioctl (0, TIOCSPGRP, &pgrp);
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ptrace (PTRACE_TRACEME);
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execv (program, allargs);
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fprintf (stderr, "Cannot exec %s: %s.\n", program,
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fprintf (stderr, "GDBserver (process %d): Cannot exec %s: %s.\n",
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getpid(), program,
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errno < sys_nerr ? sys_errlist[errno] : "unknown error");
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fflush (stderr);
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_exit (0177);
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@ -317,10 +326,19 @@ write_inferior_memory (memaddr, myaddr, len)
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for (i = 0; i < count; i++, addr += sizeof (int))
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{
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errno = 0;
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ptrace (PTRACE_POKETEXT, inferior_pid, addr, buffer[i]);
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if (errno)
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return errno;
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while (1)
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{
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errno = 0;
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ptrace (PTRACE_POKETEXT, inferior_pid, addr, buffer[i]);
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if (errno)
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{
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fprintf(stderr, "ptrace (PTRACE_POKETEXT): errno=%d, inferior_pid=0x%x, addr=0x%x, buffer[i] = 0x%x\n", errno, inferior_pid, addr, buffer[i]);
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fprintf(stderr, "Sleeping for 1 second\n");
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sleep(1);
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}
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else
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break;
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}
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}
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return 0;
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