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authorJeff Law <law@redhat.com>1996-01-19 08:00:39 +0000
committerJeff Law <law@redhat.com>1996-01-19 08:00:39 +0000
commita0d76829ace10343d05a64cd4212b894167ed68a (patch)
tree1c59b86b0e895881414fb9567282a76630c1a4e5 /gdb/rs6000-nat.c
parente7894f6b5daf4ae6b8881520a4f59aa68ceaa044 (diff)
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* rs6000-nat.c (exec_one_dummy_insn): Rework to avoid
ptrace bug in aix4.1.3 on the rs6000. Fixes inferior function call problem on rs6000-ibm-aix4.
Diffstat (limited to 'gdb/rs6000-nat.c')
-rw-r--r--gdb/rs6000-nat.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/gdb/rs6000-nat.c b/gdb/rs6000-nat.c
index 47bfe2d..8293b56 100644
--- a/gdb/rs6000-nat.c
+++ b/gdb/rs6000-nat.c
@@ -238,7 +238,15 @@ exec_one_dummy_insn ()
target_insert_breakpoint (DUMMY_INSN_ADDR, shadow_contents);
errno = 0;
- ptrace (PT_CONTINUE, inferior_pid, (PTRACE_ARG3_TYPE) DUMMY_INSN_ADDR, 0, 0);
+
+ /* You might think this could be done with a single ptrace call, and
+ you'd be correct for just about every platform I've ever worked
+ on. However, rs6000-ibm-aix4.1.3 seems to have screwed this up --
+ the inferior never hits the breakpoint (it's also worth noting
+ powerpc-ibm-aix4.1.3 works correctly). */
+ write_pc (DUMMY_INSN_ADDR);
+ ptrace (PT_CONTINUE, inferior_pid, (PTRACE_ARG3_TYPE)1, 0, 0);
+
if (errno)
perror ("pt_continue");