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authorSiddhesh Poyarekar <siddhesh@sourceware.org>2021-07-22 18:38:08 +0530
committerSiddhesh Poyarekar <siddhesh@sourceware.org>2021-07-22 18:38:08 +0530
commitb5bd5bfe88f496463ec9fab680a8edf64d7c2a42 (patch)
tree51978efe075143c64fcd622b051faa49572928db /sysdeps/unix/sysv/linux/i386
parent9dad716d4d2993f50b165747781244bd7c43bc95 (diff)
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glibc.malloc.check: Wean away from malloc hooks
The malloc-check debugging feature is tightly integrated into glibc
malloc, so thanks to an idea from Florian Weimer, much of the malloc
implementation has been moved into libc_malloc_debug.so to support
malloc-check.  Due to this, glibc malloc and malloc-check can no
longer work together; they use altogether different (but identical)
structures for heap management.  This should not make a difference
though since the malloc check hook is not disabled anywhere.
malloc_set_state does, but it does so early enough that it shouldn't
cause any problems.

The malloc check tunable is now in the debug DSO and has no effect
when the DSO is not preloaded.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386')
-rw-r--r--sysdeps/unix/sysv/linux/i386/libc_malloc_debug.abilist7
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/libc_malloc_debug.abilist b/sysdeps/unix/sysv/linux/i386/libc_malloc_debug.abilist
index 96955644d5..6b3c5bfd0b 100644
--- a/sysdeps/unix/sysv/linux/i386/libc_malloc_debug.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libc_malloc_debug.abilist
@@ -4,7 +4,12 @@ GLIBC_2.0 __memalign_hook D 0x4
 GLIBC_2.0 __realloc_hook D 0x4
 GLIBC_2.0 calloc F
 GLIBC_2.0 free F
+GLIBC_2.0 mallinfo F
 GLIBC_2.0 malloc F
+GLIBC_2.0 malloc_stats F
+GLIBC_2.0 malloc_trim F
+GLIBC_2.0 malloc_usable_size F
+GLIBC_2.0 mallopt F
 GLIBC_2.0 mcheck F
 GLIBC_2.0 memalign F
 GLIBC_2.0 mprobe F
@@ -13,7 +18,9 @@ GLIBC_2.0 muntrace F
 GLIBC_2.0 pvalloc F
 GLIBC_2.0 realloc F
 GLIBC_2.0 valloc F
+GLIBC_2.10 malloc_info F
 GLIBC_2.16 aligned_alloc F
 GLIBC_2.2 mcheck_check_all F
 GLIBC_2.2 mcheck_pedantic F
 GLIBC_2.2 posix_memalign F
+GLIBC_2.33 mallinfo2 F