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glibc/malloc
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Florian Weimer 4cf6c72fd2 malloc: Rewrite dumped heap for compatibility in __malloc_set_state 
This will allow us to change many aspects of the malloc implementation
while preserving compatibility with existing Emacs binaries.

As a result, existing Emacs binaries will have a larger RSS, and Emacs
needs a few more milliseconds to start.  This overhead is specific
to Emacs (and will go away once Emacs switches to its internal malloc).

The new checks to make free and realloc compatible with the dumped heap
are confined to the mmap paths, which are already quite slow due to the
munmap overhead.

This commit weakens some security checks, but only for heap pointers
in the dumped main arena.  By default, this area is empty, so those
checks are as effective as before.
2016-05-13 14:16:39 +02:00
..
arena.c malloc: Add missing internal_function attributes on function definitions 2016-04-14 12:54:22 +02:00
Depend
hooks.c malloc: Rewrite dumped heap for compatibility in __malloc_set_state 2016-05-13 14:16:39 +02:00
Makefile Increase fork signal safety for single-threaded processes [BZ #19703] 2016-05-12 15:26:55 +02:00
malloc-internal.h malloc: Adjust header file guard in malloc-internal.h 2016-05-04 15:27:15 +02:00
malloc.c malloc: Rewrite dumped heap for compatibility in __malloc_set_state 2016-05-13 14:16:39 +02:00
malloc.h malloc: Remove max_total_mem member form struct malloc_par 2016-02-19 17:07:04 +01:00
mallocbug.c
mcheck-init.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
mcheck.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
mcheck.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
memusage.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
memusage.sh Update copyright dates not handled by scripts/update-copyrights. 2016-01-04 16:26:30 +00:00
memusagestat.c Update copyright dates not handled by scripts/update-copyrights. 2016-01-04 16:26:30 +00:00
morecore.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
mtrace.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
mtrace.pl Update copyright dates not handled by scripts/update-copyrights. 2016-01-04 16:26:30 +00:00
obstack.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
obstack.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
scratch_buffer_grow_preserve.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
scratch_buffer_grow.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
scratch_buffer_set_array_size.c scratch_buffer_set_array_size: Include <limits.h> 2016-04-07 13:46:28 +02:00
set-freeres.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
thread-freeres.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-calloc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-malloc-backtrace.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-malloc-fork-deadlock.c malloc: Run fork handler as late as possible [BZ #19431] 2016-04-14 09:17:02 +02:00
tst-malloc-thread-exit.c tst-malloc-thread-exit: Use fewer system resources 2016-02-19 14:12:56 +01:00
tst-malloc-thread-fail.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-malloc-usable.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-malloc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-mallocfork2.c Increase fork signal safety for single-threaded processes [BZ #19703] 2016-05-12 15:26:55 +02:00
tst-mallocfork.c
tst-mallocstate.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-mallopt.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-mcheck.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-memalign.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-mtrace.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-mtrace.sh Make shebang interpreter directives consistent 2016-01-07 04:03:21 -05:00
tst-obstack.c
tst-posix_memalign.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-pvalloc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-realloc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-scratch_buffer.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tst-trim1.c
tst-valloc.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
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