vpp/vppinfra
Christophe Fontaine fef15b4bb8 Add support for AArch32
gcc version 4.9.2 (Raspbian 4.9.2-10)
Tested on Linux raspberrypi 4.4.6-v7+ #875 SMP Tue Apr 12 16:33:02 BST 2016 armv7l GNU/Linux

CPUs may be little or big endian, detect with gcc flags, not the processor architecture
Add a new flag $(PLATFORM)_uses_openssl which allows to disable the link with openssl lib.

vlib/vlib/threads.c:
startup.conf must:
- specify the heapsize as we don't have hugepages on raspbian

cpu {
  main-core 3
}
heapsize 64M

Corrects in various files the assumption uword == u64 and replaces 'u64' cast with 'pointer_to_uword' and 'uword_to_pointer' where appropriate.
256 CPUs may create an OOM when testing with small memory footprint ( heapsize 64M ), allows the number of VLIB_MAX_CPUS to be set in platforms/*.mk

vppinfra/vppinfra/longjmp.S:
ARM - copy r1 (1st parameter of the setjmp call) to r0 (return value)

vppinfra/vppinfra/time.h:
On ARMv7 in AArch32 mode, we can access to a 64bit register to retreive the cycles count.
gcc on rpi only declare ARM_ARCH 6. Override this info, and check if it is possible to use 'mrrc'.
/!\ the time function will NOT work without allowing the user mode access to the PMU.
You may download the source of the kmod here:
https://github.com/christophefontaine/arm_rdtsc

Change-Id: I8142606436d9671a184133b935398427f08a8bd2
Signed-off-by: Christophe Fontaine <christophe.fontaine@qosmos.com>
2016-04-18 13:20:57 +00:00
..
2016-04-18 13:20:57 +00:00
2015-12-08 15:47:27 -07:00
2015-12-08 15:47:27 -07:00
2015-12-08 15:47:27 -07:00
2015-12-08 15:47:27 -07:00
2015-12-08 15:47:27 -07:00
2015-12-08 15:47:27 -07:00

Welcome to vppinfra a programming library of basic data structures.

vec.c		dynamic vectors
bitmap.h	dynamic bitmaps
heap.c		allocation heap of objects (sub-objects have variable size)
pool.h		allocation pool (like heap with size always 1)
hash.c		dynamic hash tables
mheap.c		memory allocator (a la dlmalloc)

format.c	extendable printf-like thing built on top of vectors
std-formats.c	formats for unix data structures, networking stuff, ...
timer.c		arrange for functions to be called at given times.


Build, Test, Install, Use...
----------------------------
    If this package came from the distribution tar ball, skip to the
    Build Section.  If this was a gentoo ebuild, after emerge/ebuild,
    skip to the Use Section; otherwise, start with Pre-Build.

Pre-Build
-----------
    1) svn checkout svn://teaktechnologies.com/fn/trunk/clib clib
    2) autoreconf [-v][-f][-i]	# regenerate configuration files

Build
-----
    1) cd BUILD			#  which may be different than this SRC dir
    2) ${SRC}/configure [--host=CHOST]
    3) make

Test
----
    If not cross-compiling (i.e. CBUILD == CHOST), use "make check" to
    run the validation programs.

Install
-------
    With the root effective user ID (i.e. su or sudo), run "make install".

Use
---
    We need to reference man pages and theory of operation.