7 commits

Author	SHA1	Message	Date
Murilo Opsfelder Araujo	22e3feb162	mmap-alloc: unfold qemu_ram_mmap() ... Unfold parts of qemu_ram_mmap() for the sake of understanding, moving declarations to the top, and keeping architecture-specifics in the ifdef-else blocks. No changes in the function behaviour. Give ptr and ptr1 meaningful names: ptr -> guardptr : pointer to the PROT_NONE guard region ptr1 -> ptr : pointer to the mapped memory returned to caller Backports commit 2044c3e7116eeac0449dcb4a4130cc8f8b9310da from qemu	2019-02-05 16:49:47 -05:00
Cao jin	f2a5ddf5dc	util/mmap-alloc: refactor a little bit for readability ... 1st mmap returns *ptr* which aligns to host page size, | size + align | ------------------------------------------ ptr input param *align* could be 1M, or 2M, or host page size. After QEMU_ALIGN_UP, offset will >= 0 2nd mmap use flag MAP_FIXED, then it return ptr+offset, or else fail. If it success, then we will have something like: | offset | size | -------------------------------------- ptr ptr1 *ptr1* is what we really want to return, it equals ptr+offset. Backports commit 6e4c890e15b23f078650499fbde11760b8eccf10 from qemu	2018-03-01 23:55:15 -05:00
Cao jin	217c14ad3e	util/mmap-alloc: check parameter before using ... Backports commit 4a3ecf201a1a49a804e8506df5906e446707c3b1 from qemu	2018-03-01 23:53:45 -05:00
Markus Armbruster	60e8836b74	Use #include "..." for our own headers, <...> for others ... Tracked down with an ugly, brittle and probably buggy Perl script. Also move includes converted to <...> up so they get included before ours where that's obviously okay. Backports commit a9c94277f07d19d3eb14f199c3e93491aa3eae0e from qemu	2018-02-25 04:10:33 -05:00
Peter Maydell	56d213f16c	util: Clean up includes ... Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Backports commit aafd758410015e08b1aa8964d739ba8587ce58dc from qemu	2018-02-19 01:27:55 -05:00
Michael S. Tsirkin	bdbaeb4b9b	mmap-alloc: fix error handling ... Existing callers are checking for MAP_FAILED, so we should return that on error. Backports commit 9d4ec9370a36f8a564e1ba05519328c0bd60da13 from qemu	2018-02-17 15:24:11 -05:00
Michael S. Tsirkin	722c58affb	exec: factor out duplicate mmap code ... Anonymous and file-backed RAM allocation are now almost exactly the same. Reduce code duplication by moving RAM mmap code out of oslib-posix.c and exec.c. Backports commit 794e8f301a17953efa78ab7538019ec43c59e82a from qemu	2018-02-17 15:24:03 -05:00