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gdb: change linux gdbarch data from post to pre-init

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The following patch will need to fill a field in linux_gdbarch_data
while the gdbarch is being built.  linux_gdbarch_data is currently
allocated as a post-init gdbarch data, meaning it's not possible to fill
it before the gdbarch is completely initialized.  Change it to a
pre-init gdbarch data to allow this.

The init_linux_gdbarch_data function doesn't use the created gdbarch,
it only allocates the linux_gdbarch_data structure on the gdbarch's
obstack, so the change is trivial.

gdb/ChangeLog:

	* linux-tdep.c (init_linux_gdbarch_data): Change parameter to
	obkstack.
	(_initialize_linux_tdep): Register pre-init gdb data instead of
	post-init.

Change-Id: If35ce91b6bb5435680d43b9268d811d95661644f
This commit is contained in:
Simon Marchi 2020-12-04 16:43:56 -05:00
parent 187b041e25
commit d965505887
2 changed files with 10 additions and 3 deletions
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6
gdb/linux-tdep.c
View file

@ -171,9 +171,9 @@ struct linux_gdbarch_data
};
static void *
init_linux_gdbarch_data (struct gdbarch *gdbarch)
init_linux_gdbarch_data (struct obstack *obstack)
{
return GDBARCH_OBSTACK_ZALLOC (gdbarch, struct linux_gdbarch_data);
return obstack_zalloc<linux_gdbarch_data> (obstack);
}
static struct linux_gdbarch_data *
@ -2676,7 +2676,7 @@ void
_initialize_linux_tdep ()
{
linux_gdbarch_data_handle =
gdbarch_data_register_post_init (init_linux_gdbarch_data);
gdbarch_data_register_pre_init (init_linux_gdbarch_data);
/* Observers used to invalidate the cache when needed. */
gdb::observers::inferior_exit.attach (invalidate_linux_cache_inf);