FreeChainXenon/binutils-gdb
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Introduce common cleanup for restoring integers.

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* defs.h (make_cleanup_restore_integer): New declaration.
        (struct cleanup): New field free_arg.
        (make_my_cleanup_2): New.
        * utils.c (restore_integer_closure, restore_integer)
        (make_cleanup_restore_integer): New.
        (make_my_cleanup): Initialize the free_arg field and
        renamed to make_my_cleanup_2.
        (do_my_cleanups): Call free_arg.
        (discard_cleanups): Call free_arg.
        * breakpoint.c (restore_always_inserted_mode): Remove.
        (update_breakpoints_after_exec): Use make_cleanup_restore_integer.
This commit is contained in:
Vladimir Prus 2008-06-10 09:29:15 +00:00
parent 3201a343ca
commit 0b080f5982
4 changed files with 69 additions and 11 deletions
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14
gdb/defs.h
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@ -230,12 +230,18 @@ enum return_value_convention
Use make_cleanup to add an element to the cleanup chain.
Use do_cleanups to do all cleanup actions back to a given
point in the chain. Use discard_cleanups to remove cleanups
from the chain back to a given point, not doing them. */
from the chain back to a given point, not doing them.
If the argument is pointer to allocated memory, then you need to
to additionally set the 'free_arg' member to a function that will
free that memory. This function will be called both when the cleanup
is executed and when it's discarded. */
struct cleanup
{
struct cleanup *next;
void (*function) (void *);
void (*free_arg) (void *);
void *arg;
};
@ -339,11 +345,17 @@ extern struct cleanup *make_cleanup_close (int fd);
extern struct cleanup *make_cleanup_bfd_close (bfd *abfd);
extern struct cleanup *make_cleanup_restore_integer (int *variable);
extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
extern struct cleanup *make_my_cleanup (struct cleanup **,
make_cleanup_ftype *, void *);
extern struct cleanup *make_my_cleanup2 (struct cleanup **,
make_cleanup_ftype *, void *,
void (*free_arg) (void *));
extern struct cleanup *save_cleanups (void);
extern struct cleanup *save_final_cleanups (void);
extern struct cleanup *save_my_cleanups (struct cleanup **);