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Aidan MacDonald c249dea2b7 libsetjmp: fix unpredictable behavior warning on ARM Cortex-M
GAS warns about unpredictable behavior of "ldr sp, [a1], #4"
that exists on Cortex-M3 (errata 752419) but this warning is
incorrectly issued on other cores too (eg, Cortex-M7).

Since the fix is just one extra instruction we may as well
apply the workaround for all Cortex-M targets.

Change-Id: I0c2aa46837f776d67d0236b627af1572aa5ab307
2025-04-19 11:24:01 -04:00
android build: instead of 'ifdef NODEPS' use 'ifneq ($NODEPS,)' 2025-03-29 14:33:20 -04:00
apps arm: add div0 handler for 64-bit division on ARMv7-M 2025-04-19 09:43:40 -04:00
backdrops add cabbie bitmap for 128 x 96 greyscale screen 2025-03-27 22:25:56 -04:00
bootloader New port: iPod Nano 3G 2025-04-18 20:10:29 -04:00
debian Prepare new maemo release 2013-03-10 12:12:38 +01:00
docs FS#13598: Updated Spanish translation (Guillermo Garcia Rojas) 2025-04-18 17:30:41 -04:00
firmware arm: add div0 handler for 64-bit division on ARMv7-M 2025-04-19 09:43:40 -04:00
fonts FS#9906: Correct SWIDTH, DWIDTH for ETHIOPIC SYLLABLE NO in 15-Adobe-Helvetica (Maurus Cuelenaere) 2025-03-25 21:25:21 -04:00
gdb Nuke the never-functional iriver ifp-7xx port 2021-04-26 07:42:58 -04:00
icons Revert Non-Alpha Updated 8x8 tango icons 2020-10-25 16:21:58 +00:00
lib libsetjmp: fix unpredictable behavior warning on ARM Cortex-M 2025-04-19 11:24:01 -04:00
manual manual: add 'manual-7zip' build target for 7zipped HTML manual. 2025-04-18 11:24:40 -04:00
packaging Prepare unofficial pandora release 2013-03-10 14:09:30 +01:00
tools New port: iPod Nano 4G 2025-04-18 20:40:49 -04:00
uisimulator Remove BATTERY_TYPES 2025-03-11 02:26:38 -04:00
utils rbutil: http:// -> https:// for all displayed Rockbox URLs. 2025-04-05 13:58:56 -04:00
wps [Feature] skinengine subline timeout hide line for n seconds 2024-12-07 23:02:22 -05:00
.gitattributes Add a gitattributes file for the migration. 2011-12-01 14:14:59 +00:00
.gitignore time-sync: Fix arguments order in linker command 2025-01-16 16:05:18 -05:00
.gitreview misc: Add a .gitreview file for better gerrit integration 2021-06-24 07:22:19 -04:00

               __________               __   ___.
     Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
     Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
     Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
     Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
                       \/            \/     \/    \/            \/

Build Your Own Rockbox

1. Clone 'rockbox' from git (or extract a downloaded archive).

   $ git clone git://git.rockbox.org/rockbox

     or

   $ tar xJf rockbox.tar.xz

2. Create a build directory, preferably in the same directory as the firmware/
   and apps/ directories. This is where all generated files will be written.

   $ cd rockbox
   $ mkdir build
   $ cd build

3. Make sure you have mips/m68k/arm-elf-gcc and siblings in the PATH. Make sure
   that you have 'perl' in your PATH too. Your gcc cross compiler needs to be
   a particular version depending on what player you are compiling for. These
   can be generated using the rockboxdev.sh script in the /tools/ folder of the
   source.

   $ which arm-elf-eabi-gcc
   $ which perl

4. In your build directory, run the 'tools/configure' script and enter what
   target you want to build for and if you want a debug version or not (and a
   few more questions). It'll prompt you. The debug version is for making a
   gdb version out of it. It is only useful if you run gdb towards your target
   Archos.

   $ ../tools/configure

5. *ploink*. Now you have got a Makefile generated for you.

6. Run 'make' and soon the necessary pieces from the firmware and the apps
   directories have been compiled, linked and scrambled for you.

   $ make
   $ make zip

7. unzip the rockbox.zip on your music player, reboot it and
   *smile*.

If you want to build for more than one target, just create several build
directories and create a setup for each target:

   $ mkdir build-fuzeplus
   $ cd build-fuzeplus
   $ ../tools/configure

   $ mkdir build-xduoox3
   $ cd build-xduoox3
   $ ../tools/configure

Questions anyone? Ask on the mailing list or on IRC. We'll be happy to help you!