From: Pedro Franco de Carvalho Date: Mon, 30 Mar 2020 15:04:25 +0000 (-0300) Subject: Add low_new_clone method to linux_nat_target. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1310c1b066d4a7b0ce48ad55103a8d559a37ace1;p=binutils-gdb.git Add low_new_clone method to linux_nat_target. This patch adds a low_new_clone method to linux_nat_target, called after a PTRACE_EVENT_CLONE is detected, similar to how low_new_fork is called after PTRACE_EVENT_(V)FORK. This is useful for targets that need to copy state associated with a thread that is inherited across clones. gdb/ChangeLog: 2020-03-30 Pedro Franco de Carvalho * linux-nat.h (low_new_clone): New method. * linux-nat.c (linux_handle_extended_wait): Call low_new_clone. --- diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 812d0b9b55f..61f01ab2438 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2020-03-30 Pedro Franco de Carvalho + + * linux-nat.h (low_new_clone): New method. + * linux-nat.c (linux_handle_extended_wait): Call low_new_clone. + 2020-03-29 Simon Marchi * dbxread.c (dbx_psymtab_to_symtab_1): Rename to... diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c index 133b87ca742..28491859aa8 100644 --- a/gdb/linux-nat.c +++ b/gdb/linux-nat.c @@ -1978,6 +1978,10 @@ linux_handle_extended_wait (struct lwp_info *lp, int status) inferior. */ linux_target->low_new_fork (lp, new_pid); } + else if (event == PTRACE_EVENT_CLONE) + { + linux_target->low_new_clone (lp, new_pid); + } if (event == PTRACE_EVENT_FORK && linux_fork_checkpointing_p (lp->ptid.pid ())) diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h index e224f89120b..1af9e830c83 100644 --- a/gdb/linux-nat.h +++ b/gdb/linux-nat.h @@ -164,6 +164,10 @@ public: virtual void low_new_fork (struct lwp_info *parent, pid_t child_pid) {} + /* The method to call, if any, when a new clone event is detected. */ + virtual void low_new_clone (struct lwp_info *parent, pid_t child_lwp) + {} + /* The method to call, if any, when a process is no longer attached. */ virtual void low_forget_process (pid_t pid)