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Remove __morecore and __default_morecore

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Make the __morecore and __default_morecore symbols compat-only and
remove their declarations from the API.  Also, include morecore.c
directly into malloc.c; this should ideally get merged into malloc in
a future cleanup.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Siddhesh Poyarekar
2021-07-22 18:37:57 +05:30
parent 57b07bede1
commit 55a4dd3930
8 changed files with 24 additions and 49 deletions
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12
malloc/arena.c
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@ -274,14 +274,6 @@ next_env_entry (char ***position)
#endif
#if defined(SHARED) || defined(USE_MTAG)
static void *
__failing_morecore (ptrdiff_t d)
{
return (void *) MORECORE_FAILURE;
}
#endif
#ifdef SHARED
extern struct dl_open_hook *_dl_open_hook;
libc_hidden_proto (_dl_open_hook);
@ -310,7 +302,7 @@ ptmalloc_init (void)
and that morecore does not support tagged regions, then
disable it. */
if (__MTAG_SBRK_UNTAGGED)
__morecore = __failing_morecore;
__always_fail_morecore = true;
mtag_enabled = true;
mtag_mmap_flags = __MTAG_MMAP_FLAGS;
@ -323,7 +315,7 @@ ptmalloc_init (void)
generic sbrk implementation also enforces this, but it is not
used on Hurd. */
if (!__libc_initial)
__morecore = __failing_morecore;
__always_fail_morecore = true;
#endif
thread_arena = &main_arena;