Commit Graph

16 Commits

Author SHA1 Message Date
Ingo Weinhold
3cf7ecd1e4 * Added <sys/mman.h> header. It declares only mmap() and munmap() yet
and defines the macros needed by them.
* Renamed syscall sys_vm_map_file() to _kern_map_file() and changed the
  path to an FD parameter. Changed vm_map_file() accordingly and
  adjusted the kernel ELF loader and the runtime loader.
* Added syscall _kern_unmap_memory().
* Added bool unmapAddressRange parameter to vm_create_anonymous_area()
  and map_backing_store(). If true and the address specification is
  B_EXACT_ADDRESS, all areas in the specified address range will be
  deleted (unless an area is covered only partially).
* Introduced B_SHARED_AREA flag, which is set on areas that have been
  created by {vm,_user}_map_file() with REGION_NO_PRIVATE_MAP. When
  fork()ing those areas won't be copied CoW, but rather be cloned. This
  is needed for mmap() MAP_SHARED.
* {vm,_user}_map_file() also accept an FD argument < 0, in which case an
  anonymous area is created.
* Implemented mmap() and munmap(). Currently there's the restriction
  that we can't partially unmap areas. Otherwise the functions should be
  rather compliant. We also support the non-POSIX extension
  MAP_ANONYMOUS.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24964 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-04-13 22:52:11 +00:00
Axel Dörfler
5dafcc2b1b * Added new "symbol" command which is able to search for a symbol that
matches the specified pattern in all loaded kernel images.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24592 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-03-26 16:10:06 +00:00
Axel Dörfler
890c615aee * unload_elf_image() never unloaded any image because the ref_count
check was wrong (never gets below zero if everything goes as 
  intended).
* Removed erroneous white space.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24232 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-03-04 12:36:53 +00:00
Michael Lotz
d4d25a55bd We should lock around register_elf_image() as we modify the image hash in there.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24010 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-02-18 22:54:12 +00:00
Ingo Weinhold
7bb85c7b55 Clarifying comment.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23806 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-02-01 12:11:02 +00:00
Ingo Weinhold
2477bce504 Added support for userland symbol lookup in "sc" and "call". Having
used it for an hour or so, I really wonder how we could live without it.
:-)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23640 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-19 16:33:03 +00:00
Axel Dörfler
4063db92d0 * elf_resolve_symbol() no longer copies the symbol name if symbolPrepend is
NULL (it's not used anywhere yet, anyway).
* Fixed warning when compiling with tracing turned on.
* Some cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23267 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-06 14:54:57 +00:00
Axel Dörfler
a0b6b9b9e6 Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23241 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-01-04 16:59:30 +00:00
Axel Dörfler
80f5469291 * struct vnode is an opaque type now, removed void* where it was used incorrectly.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22461 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-10-06 15:33:12 +00:00
Axel Dörfler
5c4ed86b56 * Moved some definitions from vm_types.h that functions in vm.h need as
arguments into vm.h.
* This should fix the broken build from earlier - thanks Stefano for the note!
* That also allowed to clean some other includes a bit.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22331 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-09-27 13:01:18 +00:00
Axel Dörfler
e6dc7903e4 * vm.h no longer includes vm_types.h - only those that actually need access
to the private VM types are including vm_types.h now.
* Removed vm_page, vm_area, vm_cache, and vm_address_space typedefs; it's
  cleaner this way, and the actual types are only used in C++ files now,
  anyway.
* And that caused changes in many files...
* Made commpage.h self-containing.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22329 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-09-27 12:21:33 +00:00
Ingo Weinhold
6e442c70cb Reversed locking order of sImageLoadMutex and sImageMutex in
unload_kernel_add_on(). The former one could lead to deadlocks with
load_kernel_add_on() (e.g. occasionally the boot process would hang).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20485 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-03-31 23:06:09 +00:00
Axel Dörfler
0ad660a168 Remap all preloaded executables read-only and executable.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19180 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-11-02 20:38:30 +00:00
Axel Dörfler
7d2fafcac5 Forgot even more debug output...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16882 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-26 18:45:54 +00:00
Axel Dörfler
61106f7e86 Forgot to remove some debug output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16881 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-26 17:11:43 +00:00
Axel Dörfler
c14a34a65f * Improved kernel ELF loader (and made it more similar to the one from the boot
loader): it now supports holes between segments, and accepts any segment order.
* Renamed elf.c to elf.cpp and fixed warnings.
* Renamed elf_image_info::dynamic_ptr and eheader to dynamic_section and elf_header.
* Some cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16878 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-03-26 15:58:43 +00:00