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Set proc->priv->new_inferior out of linux_add_process 

Nowadays, we set proc->priv->new_inferior to 1 inside linux_add_process,
and new_inferior is used as a flag to initialise target description later.
linux_add_process is used for the three cases, fork/vfork event
(handle_extended_wait), run the program (linux_create_inferior), and
attach to the process (linux_attach).  In the first case, the child's
target description is copied from parent's, so we don't need to initialise
target description again later, which means we don't need to set
proc->priv->new_inferior to 1 in this case.  For the rest of two cases,
we need this flag.

This patch move the code setting proc->priv->new_inferior to 1 inside
linux_add_process to linux_create_inferior and linux_attach.  No
functionality is changed.

gdb/gdbserver:

2015-07-24  Yao Qi  <yao.qi@linaro.org>

	* linux-low.c (linux_add_process): Don't set
	proc->priv->new_inferior.
	(linux_create_inferior): Set proc->priv->new_inferior to 1.
	(linux_attach): Likewise.
This commit is contained in:
Yao Qi 2015-07-24 14:40:34 +01:00
parent eb97750bce
commit 5ae3ebbae5
2 changed files with 15 additions and 5 deletions
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7
gdb/gdbserver/ChangeLog
View File

@ -1,3 +1,10 @@
2015-07-24 Yao Qi <yao.qi@linaro.org>
* linux-low.c (linux_add_process): Don't set
proc->priv->new_inferior.
(linux_create_inferior): Set proc->priv->new_inferior to 1.
(linux_attach): Likewise.
2015-07-24 Yao Qi <yao.qi@linaro.org>
* server.c (start_inferior): Code refactor.

13
gdb/gdbserver/linux-low.c
View File

@ -405,9 +405,6 @@ linux_add_process (int pid, int attached)
proc = add_process (pid, attached);
proc->priv = xcalloc (1, sizeof (*proc->priv));
/* Set the arch when the first LWP stops. */
proc->priv->new_inferior = 1;
if (the_low_target.new_process != NULL)
proc->priv->arch_private = the_low_target.new_process ();
@ -766,6 +763,7 @@ linux_create_inferior (char *program, char **allargs)
ptid_t ptid;
struct cleanup *restore_personality
= maybe_disable_address_space_randomization (disable_randomization);
struct process_info *proc;
#if defined(__UCLIBC__) && defined(HAS_NOMMU)
pid = vfork ();
@ -813,7 +811,9 @@ linux_create_inferior (char *program, char **allargs)
do_cleanups (restore_personality);
linux_add_process (pid, 0);
proc = linux_add_process (pid, 0);
/* Set the arch when the first LWP stops. */
proc->priv->new_inferior = 1;
ptid = ptid_build (pid, pid, 0);
new_lwp = add_lwp (ptid);
@ -959,6 +959,7 @@ linux_attach (unsigned long pid)
{
ptid_t ptid = ptid_build (pid, pid, 0);
int err;
struct process_info *proc;
/* Attach to PID. We will check for other threads
soon. */
@ -967,7 +968,9 @@ linux_attach (unsigned long pid)
error ("Cannot attach to process %ld: %s",
pid, linux_ptrace_attach_fail_reason_string (ptid, err));
linux_add_process (pid, 1);
proc = linux_add_process (pid, 1);
/* Set the arch when the first LWP stops. */
proc->priv->new_inferior = 1;
if (!non_stop)
{