Add support to map the contents of a file
Add a package HW.File with a single procedure Map():
procedure Map
(Path : in String;
Addr : in Word64;
Len : in Natural;
Readable : in Boolean := False;
Writable : in Boolean := False;
Map_Copy : in Boolean := False;
Success : out Boolean)
with
Pre => (Readable or Writable) and
(if Map_Copy then Readable and not Writable);
If `Map_Copy` is `False`, it should map `Len` bytes from the start of
the file given by `Path` into the application's address space at `Addr`
using mmap(). If `Map_Copy` is `True`, anonymous memory should be map-
ped instead and be filled with a copy of the file's content using
read().
The current implementation is backed by C code to reduce dependencies
to external libraries (e.g. Florist is not packaged by a famous Linux
distro).
While we are at it, also add a configuration file for common POSIX
environments (configs/posix).
Change-Id: Ic10c35b35d3216dab6a5b2baba7ba619c885b346
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/18779
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/configs/defconfig b/configs/defconfig
index eb8cafb..c0db7c3 100644
--- a/configs/defconfig
+++ b/configs/defconfig
@@ -4,3 +4,4 @@
CONFIG_HWBASE_DYNAMIC_MMIO =
CONFIG_HWBASE_TIMER_CLOCK_GETTIME = y
CONFIG_HWBASE_TIMER_MUTIME =
+CONFIG_HWBASE_POSIX_FILE =