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authorKen Brown <kbrown@cornell.edu>2014-08-28 10:48:02 -0400
committerKen Brown <kbrown@cornell.edu>2014-08-28 10:48:02 -0400
commitea652500776aacbb8cb64f9ecca16a2d2c7add80 (patch)
treec759fc62dfa422e8fb636aef6dbb04df2c68cc7e /src/sheap.c
parenta7ef7a0e53ae1f391f4bda207bb5e9b9d833d354 (diff)
downloademacs-ea652500776aacbb8cb64f9ecca16a2d2c7add80.tar.gz
Add support for HYBRID_MALLOC, allowing the use of gmalloc before
dumping and the system malloc after dumping. (Bug#18222) * configure.ac (HYBRID_MALLOC): New macro; define to use gmalloc before dumping and the system malloc after dumping. Define on Cygwin. * src/conf_post.h (malloc, realloc, calloc, free) [HYBRID_MALLOC]: Define as macros, expanding to hybrid_malloc, etc. (HYBRID_GET_CURRENT_DIR_NAME): New macro. (get_current_dir_name) [HYBRID_GET_CURRENT_DIR_NAME]: Define as macro. * src/gmalloc.c: Set up the infrastructure for HYBRID_MALLOC, with a full implementation on Cygwin. Remove Cygwin-specific code that is no longer needed. (malloc, realloc, calloc, free, aligned_alloc) [HYBRID_MALLOC]: Redefine as macros expanding to gmalloc, grealloc, etc. (DUMPED, ALLOCATED_BEFORE_DUMPING) [CYGWIN]: New macros. (get_current_dir_name) [HYBRID_GET_CURRENT_DIR_NAME]: Undefine. (USE_PTHREAD, posix_memalign) [HYBRID_MALLOC]: Don't define. (hybrid_malloc, hybrid_calloc, hybrid_free, hybrid_realloc) [HYBRID_MALLOC]: (hybrid_get_current_dir_name) [HYBRID_GET_CURRENT_DIR_NAME]: (hybrid_aligned_alloc) [HYBRID_MALLOC && (HAVE_ALIGNED_ALLOC || HAVE_POSIX_MEMALIGN)]: New functions. * src/alloc.c (aligned_alloc) [HYBRID_MALLOC && (ALIGNED_ALLOC || HAVE_POSIX_MEMALIGN)]: Define as macro expanding to hybrid_aligned_alloc; declare. (USE_ALIGNED_ALLOC) [HYBRID_MALLOC && (ALIGNED_ALLOC || HAVE_POSIX_MEMALIGN)]: Define. (refill_memory_reserve) [HYBRID_MALLOC]: Do nothing. * src/sysdep.c (get_current_dir_name) [HYBRID_GET_CURRENT_DIR_NAME]: Define as macro, expanding to gget_current_dir_name, and define the latter. * src/emacs.c (main) [HYBRID_MALLOC]: Don't call memory_warnings() or malloc_enable_thread(). Don't initialize malloc. * src/lisp.h (NONPOINTER_BITS) [CYGWIN]: Define (because GNU_MALLOC is no longer defined on Cygwin). (refill_memory_reserve) [HYBRID_MALLOC]: Don't declare. * src/sheap.c (bss_sbrk_buffer_end): New variable. * src/unexcw.c (__malloc_initialized): Remove variable. * src/ralloc.c: Throughout, treat HYBRID_MALLOC the same as SYSTEM_MALLOC. * src/xdisp.c (decode_mode_spec) [HYBRID_MALLOC]: Don't check Vmemory_full.
Diffstat (limited to 'src/sheap.c')
-rw-r--r--src/sheap.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/sheap.c b/src/sheap.c
index 5069744435b..dc34df59556 100644
--- a/src/sheap.c
+++ b/src/sheap.c
@@ -44,6 +44,7 @@ int debug_sheap = 0;
#define BLOCKSIZE 4096
char bss_sbrk_buffer[STATIC_HEAP_SIZE];
+char *bss_sbrk_buffer_end = bss_sbrk_buffer + STATIC_HEAP_SIZE;
char *bss_sbrk_ptr;
char *max_bss_sbrk_ptr;
int bss_sbrk_did_unexec;