From 77435e4c95513bfccecb90bca8a06a5a62aebdc6 Mon Sep 17 00:00:00 2001 From: Pedro Alves Date: Mon, 26 Jan 2009 22:34:55 +0000 Subject: [PATCH] * linux-nat.c (linux_child_follow_fork): Copy attach_flag from the parent to the child. * inf-ttrace.c (inf_ttrace_follow_fork): Likewise. * inf-ptrace.c (inf_ptrace_follow_fork): Likewise. Use remove_breakpoints to remove breakpoints from the parent. --- gdb/ChangeLog | 8 ++++++++ gdb/inf-ptrace.c | 8 +++++--- gdb/inf-ttrace.c | 5 ++++- gdb/linux-nat.c | 12 ++++++++++-- 4 files changed, 27 insertions(+), 6 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 63ad939..81c50ae 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,13 @@ 2009-01-26 Pedro Alves + * linux-nat.c (linux_child_follow_fork): Copy attach_flag from the + parent to the child. + * inf-ttrace.c (inf_ttrace_follow_fork): Likewise. + * inf-ptrace.c (inf_ptrace_follow_fork): Likewise. Use + remove_breakpoints to remove breakpoints from the parent. + +2009-01-26 Pedro Alves + PR backtrace/9458, PR backtrace/8864: * frame.c (create_new_frame): Update the frame's cached PC before finding its unwinder. Use frame_id_build to build the new frame's diff --git a/gdb/inf-ptrace.c b/gdb/inf-ptrace.c index 538816d..76cbecc 100644 --- a/gdb/inf-ptrace.c +++ b/gdb/inf-ptrace.c @@ -73,7 +73,8 @@ inf_ptrace_follow_fork (struct target_ops *ops, int follow_child) CORE_ADDR step_range_start = last_tp->step_range_start; CORE_ADDR step_range_end = last_tp->step_range_end; struct frame_id step_frame_id = last_tp->step_frame_id; - + int attach_flag = find_inferior_pid (pid)->attach_flag; + struct inferior *inf; struct thread_info *tp; /* Otherwise, deleting the parent would get rid of this @@ -82,7 +83,7 @@ inf_ptrace_follow_fork (struct target_ops *ops, int follow_child) /* Before detaching from the parent, remove all breakpoints from it. */ - detach_breakpoints (pid); + remove_breakpoints (); if (ptrace (PT_DETACH, pid, (PTRACE_TYPE_ARG3)1, 0) == -1) perror_with_name (("ptrace")); @@ -94,7 +95,8 @@ inf_ptrace_follow_fork (struct target_ops *ops, int follow_child) detach_inferior (pid); /* Add the child. */ - add_inferior (fpid); + inf = add_inferior (fpid); + inf->attach_flag = attach_flag; tp = add_thread_silent (inferior_ptid); tp->step_resume_breakpoint = step_resume_breakpoint; diff --git a/gdb/inf-ttrace.c b/gdb/inf-ttrace.c index 680b896..5255828 100644 --- a/gdb/inf-ttrace.c +++ b/gdb/inf-ttrace.c @@ -458,6 +458,8 @@ inf_ttrace_follow_fork (struct target_ops *ops, int follow_child) if (follow_child) { + struct inferior *inf; + /* Copy user stepping state to the new inferior thread. */ step_resume_breakpoint = last_tp->step_resume_breakpoint; step_range_start = last_tp->step_range_start; @@ -469,7 +471,8 @@ inf_ttrace_follow_fork (struct target_ops *ops, int follow_child) last_tp->step_resume_breakpoint = NULL; inferior_ptid = ptid_build (fpid, flwpid, 0); - add_inferior (fpid); + inf = add_inferior (fpid); + inf->attach_flag = find_inferior_pid (pid)->attach_flag; detach_breakpoints (pid); target_terminal_ours (); diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c index 9a7e39c..20f1ea5 100644 --- a/gdb/linux-nat.c +++ b/gdb/linux-nat.c @@ -730,9 +730,13 @@ linux_child_follow_fork (struct target_ops *ops, int follow_child) else { struct fork_info *fp; + struct inferior *parent_inf, *child_inf; /* Add process to GDB's tables. */ - add_inferior (child_pid); + child_inf = add_inferior (child_pid); + + parent_inf = find_inferior_pid (GET_PID (last_ptid)); + child_inf->attach_flag = parent_inf->attach_flag; /* Retain child fork in ptrace (stopped) state. */ fp = find_fork_pid (child_pid); @@ -800,6 +804,7 @@ linux_child_follow_fork (struct target_ops *ops, int follow_child) struct thread_info *last_tp = find_thread_pid (last_ptid); struct thread_info *tp; char child_pid_spelling[40]; + struct inferior *parent_inf, *child_inf; /* Copy user stepping state to the new inferior thread. */ struct breakpoint *step_resume_breakpoint = last_tp->step_resume_breakpoint; @@ -829,7 +834,10 @@ linux_child_follow_fork (struct target_ops *ops, int follow_child) /* Add the new inferior first, so that the target_detach below doesn't unpush the target. */ - add_inferior (child_pid); + child_inf = add_inferior (child_pid); + + parent_inf = find_inferior_pid (GET_PID (last_ptid)); + child_inf->attach_flag = parent_inf->attach_flag; /* If we're vforking, we may want to hold on to the parent until the child exits or execs. At exec time we can remove the old -- 2.7.4