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Preliminary cleanup for splitting host/native/target.

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* infptrace.c (child_resume):  Don't deal with NO_SINGLE_STEP
here; it is dealt with at a gdb-target-independent level.
* rs6000-tdep.c (single_step):  Don't call ptrace, we are a
high toned routine.  Fix return type to void.
This commit is contained in:
John Gilmore 1992-09-18 07:40:15 +00:00
parent 2ec3d07cc7
commit 997cc2c0a3
3 changed files with 19 additions and 12 deletions
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9
gdb/ChangeLog
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@ -26,6 +26,15 @@ Wed Sep 16 17:00:07 1992 John Gilmore (gnu@cygnus.com)
alldeps.mak files.
(assorted): Update to catch straggler files when building gdb.tar.Z.
Tue Sep 15 01:18:50 1992 John Gilmore (gnu@cygnus.com)
Preliminary cleanup for splitting host/native/target.
* infptrace.c (child_resume): Don't deal with NO_SINGLE_STEP
here; it is dealt with at a gdb-target-independent level.
* rs6000-tdep.c (single_step): Don't call ptrace, we are a
high toned routine. Fix return type to void.
Mon Sep 14 19:20:43 1992 Stu Grossman (grossman at cygnus.com)
* energize.c (pty_to_kernel): Must check for EAGAIN as

11
gdb/infptrace.c
View file

@ -120,14 +120,15 @@ child_resume (step, signal)
/* An address of (PTRACE_ARG3_TYPE)1 tells ptrace to continue from where
it was. (If GDB wanted it to start some other way, we have already
written a new PC value to the child.) */
written a new PC value to the child.)
If this system does not support PT_STEP, a higher level function will
have called single_step() to transmute the step request into a
continue request (by setting breakpoints on all possible successor
instructions), so we don't have to worry about that here. */
if (step)
#ifdef NO_SINGLE_STEP
single_step (signal);
#else
ptrace (PT_STEP, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal);
#endif
else
#ifdef AIX_BUGGY_PTRACE_CONTINUE
AIX_BUGGY_PTRACE_CONTINUE;

11
gdb/rs6000-tdep.c
View file

@ -121,9 +121,9 @@ branch_dest (opcode, instr, pc, safety)
/* AIX does not support PT_STEP. Simulate it. */
int
void
single_step (signal)
int signal;
int signal;
{
#define INSNLEN(OPCODE) 4
@ -161,9 +161,7 @@ int signal;
}
one_stepped = 1;
ptrace (PT_CONTINUE, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal, 0);
}
else {
} else {
/* remove step breakpoints. */
for (ii=0; ii < 2; ++ii)
@ -173,8 +171,7 @@ int signal;
one_stepped = 0;
}
errno = 0;
return 1;
errno = 0; /* FIXME, don't ignore errors! */
}