diff options
author | Chris Johns <chrisj@rtems.org> | 2019-02-18 11:46:22 +1100 |
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committer | Chris Johns <chrisj@rtems.org> | 2019-02-20 09:08:14 +1100 |
commit | 22afb03411133bcf928aeb85233648a94f259b44 (patch) | |
tree | e03f9e303646d3efbbce250db37d9566d50ec1c6 /cpukit/libdl/rtl-allocator.c | |
parent | bsps/arm: Move device tree copy (diff) | |
download | rtems-22afb03411133bcf928aeb85233648a94f259b44.tar.bz2 |
libdl/alloc: Add a locking interface to the allocator.
- Allow an allocator to lock the allocations. This is needed to
lock the heap allocator so the text and trampoline table are
as close together as possible to allow for the largest possible
object file size.
- Update the default heap allocator to lock the heap allocator.
- Update ELF loading to lock the allocator.
Updates #3685
Diffstat (limited to 'cpukit/libdl/rtl-allocator.c')
-rw-r--r-- | cpukit/libdl/rtl-allocator.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/cpukit/libdl/rtl-allocator.c b/cpukit/libdl/rtl-allocator.c index 01ce9e580f..0dca6b2f9a 100644 --- a/cpukit/libdl/rtl-allocator.c +++ b/cpukit/libdl/rtl-allocator.c @@ -108,6 +108,40 @@ rtems_rtl_alloc_wr_enable (rtems_rtl_alloc_tag tag, void* address) } void +rtems_rtl_alloc_lock (void) +{ + rtems_rtl_data* rtl = rtems_rtl_lock (); + + if (rtems_rtl_trace (RTEMS_RTL_TRACE_ALLOCATOR)) + printf ("rtl: alloc: lock\n"); + + if (rtl != NULL) + rtl->allocator.allocator (RTEMS_RTL_ALLOC_LOCK, + RTEMS_RTL_ALLOC_OBJECT, /* should be ignored */ + NULL, + 0); + + rtems_rtl_unlock (); +} + + +void +rtems_rtl_alloc_unlock (void) +{ + rtems_rtl_data* rtl = rtems_rtl_lock (); + + if (rtems_rtl_trace (RTEMS_RTL_TRACE_ALLOCATOR)) + printf ("rtl: alloc: unlock\n"); + + if (rtl != NULL) + rtl->allocator.allocator (RTEMS_RTL_ALLOC_UNLOCK, + RTEMS_RTL_ALLOC_OBJECT, /* should be ignored */ + NULL, + 0); + + rtems_rtl_unlock (); +} +void rtems_rtl_alloc_wr_disable (rtems_rtl_alloc_tag tag, void* address) { rtems_rtl_data* rtl = rtems_rtl_lock (); |