Commit Graph

11 Commits

Author SHA1 Message Date
Gregory Nutt cd7c6705a8 mm.h: Use UINT32_MAX vs. SIZE_MAX in definition of MMSIZE_MAX 2015-11-25 08:11:32 -06:00
Gregory Nutt 6230e6e199 size_t should be 64-bits on a 64-bit machine. mmsize_t should be 32-bits (unless CONFIG_MM_SMALL is selected). This commit backs out the last change to stddef.h 2015-11-23 12:03:36 -06:00
Gregory Nutt 9c66bde5b0 Fix typo in pre-processor command noted by Pierre-noel Bouteville. Also move # of pre-processior command to column 1 2015-09-05 09:10:48 -06:00
Gregory Nutt e69d14d89b Fix some warnings/errors detected by nuttx/tools/testbuilds.sh 2015-07-10 18:41:26 -06:00
Gregory Nutt 59cc4a7a7b Protected mode: Redesign how the user space heap is accessed from the kernel code. It used to call memory management functions in user space via function pointers in the userspace interface. That is inefficient because the first thing that those memory management functions do is to trap back into the kernel to get the current PID. Worse, that operation can be fatal is certain fragile situations such as when a task is exitting.
The solution is to remove all of the memory management function calls from the interface.  Instead, the interface exports the userspace heap structure and then kernel size implementations of those memory management functions will operate on the userspace heap structure.  This avoids the unnecessary system calls and, more importantly, failures do to freeing memory when a test exits.
2015-07-10 08:37:02 -06:00
Gregory Nutt 855e40ee7d Make some file section headers more consistent with standard 2015-04-08 07:25:06 -06:00
Gregory Nutt ef82c280fd MM: Minimum memory allocation must to up to 32 if sizeof pointer is 8-bytes 2014-11-02 12:11:20 -06:00
Gregory Nutt 1273be4cfc Fix a place in the memory manager where it explicitly assumes that the size of a point is 4 bytes. That is OK if the actually size is smaller but makes the heap unstable when used withthe x86_64 host simulation 2014-10-06 12:49:35 -06:00
Gregory Nutt b33c2d9cef Move include/nuttx/mm.h to include/nuttx/mm/mm.h 2014-09-24 07:29:09 -06:00
Gregory Nutt 1863370672 Move include/nuttx/shm.h to include/nuttx/mm/shm.h 2014-09-24 07:05:02 -06:00
Gregory Nutt 2fa7431ee7 Move include/nuttx/gran.h to include/nuttx/mm/gran.h 2014-09-24 06:55:26 -06:00