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mirror of https://github.com/esp8266/Arduino.git synced 2025-04-22 21:23:07 +03:00

407 Commits

Author SHA1 Message Date
s-hadinger
3e4d7c76c4
Allow non-aligned PSTR() (#7275)
* Allow non-aligned PSTR()

* Add PSTR4() macro to first 4-bytes aligned PSTR
2020-05-18 15:21:50 -04:00
Earle F. Philhower, III
83166f948b
Deprecate SPIFFS, move examples to LittleFS (#7263)
* Deprecate SPIFFS, move examples to LittleFS

SPIFFS has been a great filesystem, but it has significant problems in
many cases (and it's also pretty slow).  Development seems to have
slowed/stopped on the upstream version, and we're not able to provide
support or fix the known issues with it as-is.

Deprecate SPIFFS variable.

Update all examples to use LittleFS instead of SPIFFS.

Also, minor cleanup on very old examples which has obsolete delays
waiting for the Serial port to come up, or which were stuck at 9600 baud
because of their ancient AVR heritage.

Fixes #7095

* Remove leftover debug code

* Clean up comments in some examples

* Update documentation on SPIFFS deprecation

* Fix host tests to avoid deprecation warnings

* Fix cut-n-paste error

* Restore SpeedTest.ino, adjust to allow custom FSes

Co-authored-by: Develo <deveyes@gmail.com>
2020-05-04 14:22:50 -04:00
Earle F. Philhower, III
9632e868d5
Fix espota completion success/fail check (#7204)
The OTA script was not reporting the actual reported upload status from
the ESP8266, and instead always printed "Result: OK" no matter what
happened.

Now check for ERROR or OK in final message (and ensure the message is
not accidentally merged with the final byte count) and report properly.

Fixes #7162
2020-04-16 15:15:00 -07:00
s-hadinger
3db610f6d0
Ability to define -DFP_IN_IROM when generating ld script (#7188)
Co-authored-by: Stephan Hadinger <stephan.hadinger@gmail.com>
Co-authored-by: david gauchard <gauchard@laas.fr>
2020-04-06 13:54:19 -07:00
s-hadinger
483bfde885
Move floating point from libgcc out of IRAM (#7180) 2020-04-03 10:05:28 +02:00
Earle F. Philhower, III
1127a090ad
Add 2MB obtion to 8285 generic board (#7163)
The ESP8285H16 is reported to have 2MB of flash, so add an option the
the Generic 8285 board for 2MB.

Fixes #7161
2020-03-22 22:38:38 +01:00
david gauchard
e39cbe6328
rebuild lwip2 1.2-30 (#7131) 2020-03-03 21:58:57 +01:00
david gauchard
c61b70de86
unblobbing commit 2c435b1f42 (commitcomment-37529995) (#7121) 2020-02-28 00:30:36 -03:00
david gauchard
2c435b1f42
lwip2 update: stop dhcp when interface goes down (#7114) 2020-02-27 08:21:33 +01:00
schirmilabs
0554d39c6c
Add support for my new board eduino wifi (#6554)
* ^#

* Fix merge conflict

* Fix merge conflict

Co-authored-by: Earle F. Philhower, III <earlephilhower@yahoo.com>
2020-02-26 08:15:57 -08:00
Earle F. Philhower, III
a40663b65f
Update to latest BearSSL (#7098)
Minor changes which should not affect us, but keeping in sync with
upstream nevertheless.
2020-02-22 12:42:46 +01:00
david gauchard
e752e96e9f
lwip2 updates: no more git sub-sub-module deps, faster checksum, backlog limitation and other fixes (#6887)
* upstream lwIP is now downloaded by a makefile, not subsubmoduled

* lwip2: upstream lwIP not sub-sub-modules anymore
lwip2: Allow IPv4 and IPv6 DNS and SNTP server configured via DHCP to co-exist (patch against upstream)

* lwip2: enable tcp-listen-with-backlog feature

* lwip2 submodule update:
- enable more efficient chksum algorithm thanks to Richard Allen
- enable tcp listener with backlog

* more comments, fix backlog management, fix API
* move default value definition in .cpp
because one must not believe it can be redefined before including WiFiServer.h

* improved backlog handling, it is no more a breaking change
2020-02-18 06:54:50 +01:00
Valerii Koval
5efdc7762a
Allow using custom linker scripts (#7078) 2020-02-13 00:30:26 +02:00
M Hightower
fe7faf701e Added dependencies for eboot.ld and Makefile to Makefile.
Updated eboot.ld to not fill with zeros through the CS field
on its way to the CRC.
Added size test to elf2bin.py
2020-01-29 13:26:58 -08:00
M Hightower
0c6be9e114 Made changes to include "ESP8266_" with ITEAD board names, {build.board}, (#7024)
as proposed by https://github.com/esp8266/Arduino/pull/6972#issue-358508056.
@ttytyper 's changes have been incorporate into this PR
The build flag ARDUINO_SONOFF_... should now appear as ARDUINO_ESP8266_SONOFF_...
@ttytyper, @mcspr, and @d-a-v thanks!
2020-01-27 14:44:08 -08:00
M Hightower
b930c4c3e6 boards.txt.py: Fix packagegen to use newfilestr instead of filestr when writing file. (#7018)
Three missing boards are now in package/package_esp8266com_index.template.json.
2020-01-17 18:24:47 +01:00
Earle F. Philhower, III
bb6243a17b
Use a python3 script to call python3 (#6960)
* Use a python3 script to call python3

It's odd, but because Windows requires a full Python3 install we must
have an executable called "tools/python3/python3" to use Python3 in the
toolchain.

Before, we simply symlinked to /usr/bin/python3 (for Linux) or
/usr/local/bin/python3 (Mac).  Unfortunately, depending on the method of
installation, on MacOS the Python3 executable can be in /usr/bin/python3
instead.

To avoid the entire issue, unify the Mac and Linux python3 placeholders
to use python3 itself to jump to the real executable.

Fixes #6931

* Explicitly remove old symlink to python3

The tar extraction for the updated python3 tarball will fail on systems
that already have a symlink in /tools/python3/python3 because the tar
extractor attempts to open the *target of the symlink* (i.e. the actual
interpreter in /usr/bin or /usr/local/bin).

Add a commented hack to destroy this symlink before expanding the
tarballs, if the file exists.  This is safe to do since it will be
overwritten by any extractions of the python3 tarball later in the
process.

Co-authored-by: david gauchard <gauchard@laas.fr>
2020-01-14 06:53:17 -08:00
Earle F. Philhower, III
b62d8c7633
Update BearSSL, increase SSL stack (#6980)
Only minor updates to headers and no functionality change on the
portions that we use in the ESP8266.

@Teddyz reported random crashes while running against a local MQTT
server and was able to report stack usages of up to 6136 bytes.
Increase the SSL stack to a little more than that, once again.
2020-01-04 08:18:14 -08:00
Earle F. Philhower, III
52d84b1ead
Add a CRC32 over progmem and ESP.checkFlashCRC (#6566)
* Add a CRC32 over progmem and ESP.checkFlashCRC

Automatically embed a CRC32 of the program memory (including bootloader
but excluding any filesystems) in all images in unused space in the
bootloader block.

Add a call, ESP.checkFlashCRC() which returns false if the calculated
CRC doesn't match the one stored in the image (i.e. flash corruption).

Fixes #4165

* Add example that corrupts itself, comments

Show CRC checking catch a 1-bit error in program code by corrupting a
large array, and then return it to clean and verify the CRC matches once
again.

Add comments to the CRC check routine

Clean up pylint complaints on crc32bin.py

* Check linker script for CRC space in bootsector

Add an assertion in the eboot linker file to guarantee that we have at
least 8 bytes of unused space at the end of the boot sector to patch in
the CRC.  If not, the eboot link will fail.

* Add note about what to do if CRC check fails

Per discussion with @d-a-v.

When the CRC check fails, you could *try* to do certain things (but may
not succeed since there is known flash corruption at that point).  List
a few ideas for application authors.

* Only single, flash/ram friendly crc32() function

* Combine the CRC calc and bin generation in 1 step

Per discussion w/@mcspr, combine the CRC calculation with the binary
generation, removing the additional build step.
2019-12-20 14:38:35 -08:00
Earle F. Philhower, III
1d0bc5efdf
Allow GZIP compressed flash updates (#6820)
* Allow GZIP compressed flash updates

Modified the bootloader to be able to take stored updates in compressed
GZIP format (i.e. the output of "gzip -9 xxx.bin") and decompress them
on-the-fly to their final destination.  This can work for apps and for
filesystems (when used with the 2-step update option).

Allow eboot to be built using -Os/2 optimizations by fixing some portions
which failed when any optimizations were used.  Add -Wall and use data
and function sections to reduce size.  Use -Os to minimize size.

Remove obsolete esptool-ck calls to build a .ROM image, we don't use it.

Move all uninitted variables to RAM from IRAM, allowing 8-bit access.

Hook in @d-a-v and @pfalcon's uzlib port to actually do the
decompression.  Do not use any CRC checking which saves space.  Since we
have overwritten all of flash by the time we know id the CRC matches,
there's nothing we could have done anyway.

Adjust the Updater class to support GZIP files and not attempt to patch
them.

Bootloader builds to 0xd90 out of 0xfff bytes.

* Add @d-a-v's patch for httpupdate

https://github.com/esp8266/Arduino/pull/6820#pullrequestreview-326541014

* Update uzlib to point to pfalcon++

For now, because there are some self-test failures with @d-a-v's esp8266
branch (whose cool new features we don't actually use in eboot now)
start with pfalcon's 2.9 release and add the 2 patches (clcidx to code
from IRAM/RODATA, and the Windows test file renaming) needed to build
and run successfully.

* Add (c) notice for uzlib to README
2019-12-18 09:17:38 -08:00
Earle F. Philhower, III
d012adc9bb Add hh (byte) format for printf and scanf (#6896)
Fixes #4660

Add in support for byte-wide scanf and printf (%hh..) in printf and
scanf.  Allows reading into a byte array one byte at a time.
2019-12-10 21:29:07 +01:00
david gauchard
e08b22c5b5
sdk:22x-191122 (#6879)
* sdk:22x191122
another firmware to test
not default: v2.2.1-119-ga0b1311 (shows as SDK:2.2.2-dev(a58da79) in debug mode)
default unchanged

* and the obj files
2019-12-04 11:41:51 +01:00
Earle F. Philhower, III
56fe2bfe73
[BREAKING] Update FS plugin info for python3 compat (#6807)
The FS uploader plugins need to be updated to use python3 and not
python, or they will fail on Windows (or Linux boxes without an
installed python2 interpreter).

Update the documents to point to the new versions.
2019-11-26 08:43:18 -07:00
david gauchard
8b3b60056a
switch to firmware 2.2.x-190703 by default (#6826) 2019-11-24 01:00:18 +01:00
Earle F. Philhower, III
dabf4c53d4 Make upload.py compatible with existing FS upload (#6788)
* Make upload.py compatible with existing FS upload

PR #6765 introduced an incompatibility with the existing Java uploaders
for SPIFFS and LittleFS,  breaking them because of the upload.py
parameter format change to support single stage erase/upload.

Add in patch to silently eat the single --end and to parse the write
address and filename properly as generated by calls from the plugins,
while retaining compatibility with the current IDE changes.

* Clean upload.py, make platform use write_flash

Make upload.py more concise and pythonic.

Use the "write_flash" argument in platform.txt for uploads instead of
assuming anything that is a file is the bin to upload.
2019-11-17 19:05:43 -03:00
david gauchard
b52c52791a a single esptool command for erasing and flashing (#6765)
* esptool: a single command for erasing and flashing
(and update to esptool-2.8)

* fixes per review
2019-11-14 02:46:20 -03:00
david gauchard
bc60e97489
board NodeMCUv1 menu: led selection (2, 16) (#6748) 2019-11-10 22:07:51 +01:00
M Hightower
9f6d3c7c3e Add board filter support ... (#6643)
* Add boards filter support - allows for the creation of an abridged boards.txt.
Add some of the ITEAD Sonoff boards to boards.txt.py.
Minor reorder of presentation of board menu items, mainly grouped
board Model and module selection to the top.

* Corrected, I think, LED_BUILTIN vs BUILTIN_LED??

* Updated boards.txt

* Added support for DOIT ESP-Mx DevKit (ESP8285) board.
Adjusted wording and fixed side bar formating issue on the
Sonoff description. Also, removed resetmethod menu
and assigned resetmethod of none.
2019-11-08 14:49:29 -03:00
david gauchard
1ec3683ca0
FW: use NONOS-SDK branch 2.2.x from 2019-10-24 by default (#6724)
* FW: use NONOS-SDK branch 2.2.x from 2019-10-24 by default
former one is available when using generic board configuration

* tv qvoqve, Platform-ii

* nonos-sdk v2.2.x from 2019-11-05 by default for all boards
(previous ones can be selected with the generic board)

* (w/ fw files)

* 191024 by default, 191105 is an option
2019-11-08 11:41:22 +01:00
Laurent Lalanne
c28838d980 Update esptool reset method (#6429)
* Reset method changes for esptool.py

* Workaround - to be reverted in case esptool do erase/write_flash in one command

* Keep previous resetmethod names and translate to esptool.py options

* Regenerated boards.txt
2019-11-06 22:55:33 +01:00
Elias Santistevan
e2959eefd5 Adds SparkFun Blynk Board (#6713)
* adds initial commit to boards.txt before actual edits

* reminder to remove vim .swp file

* Removes spaces and modifies outdated tags for menu `CpuFrequency -> xtal` for example

* Adds SparkFun Bynk Board to boards.txt.py, moves .build flags all together for SparkFun Blynk

* runs boards.txt.py to generate files for pull request - all files have been included as instructed at top of boards.txt file

* Deletes three .orig files generated by boards.txt.py: rst, txt, and json

* Moves boards.txt.py back to /tools directory and attempts to change its mode.

* restore 'x' flag
2019-11-05 17:56:52 +01:00
david gauchard
ba50bd57b8 sdk: testing branch update (v2.2.x), tidy up fw names in menus, add dates (#6672)
* sdk: testing branch update (v2.2.x), tidy up fw names in menus, add dates

Former default SDK (22y, renamed to 22x-190703) is still available
Changelog is included in sdk directory

* Keep current FW as default until next release

* update for PIO
2019-10-27 10:01:28 -07:00
david gauchard
405f945d7e
esptool-2.7 (#6634) 2019-10-12 23:12:49 +02:00
David J. Fiddes
d7abafea2f Remove duplication and incompatible declarations in sntp.h (#6610)
This removes definitions relating to the built-in SNTP client that
are LwIP v1 specific. Instead of duplicating these pull in the
LwIP header that correspond to the required functions depending on
the version of the stack being used.

Without this fix calls to sntp_getserver() work but return invalid
data and can lead to stack exhaustion.

Update the NTP-TZ-DST example to use the Arduino sntp.h header
rather than duplicate the conditional checks to use the LwIP header.

Tests:
 - Build against a simple SNTP API demonstratin app and all
   LwIP configurations. Verify that the app runs for an extended
   period and that the expected results are obtained.
2019-10-06 15:25:34 -07:00
Earle F. Philhower, III
fb2cbe36a1
Fix pgm_read_float_unaligned macro (#6593)
Fixes #6590

The ASM block that implements the read-uint32-unaligned returns a
uint32_t.  The old code was doing a cast like `(float)(uint32_t ret)
which actually goes and creates a new float of the positive uint value
(approx, of course due to exponent and sign bits) which is not correct.

C and C++ don't have a concise way to convert the bits in a register
from int to float interpretation, so avoid the whole issue by making a
new function which uses the same ASM block as the read-uint32-unaligned,
just make the destination and return values as floats.
2019-10-03 08:21:07 -07:00
Earle F. Philhower, III
215459fda4
Replace ASM block w/C macro for PSTR (#6577)
* Replace ASM block w/C marco for PSTR

GAS doesn't support the C language idiom of catenating two strings
together with quotes (i.e. "x" "y" === "xy").

Specify the section attribute fully in the section attribute, instead,
to allow this.

* Fix WString optimization

PR #6573 introduced a corner case where a blind String() without any
initialization was in an in invalid state because the buffer and len
would not be updated properly.  Concatenating to the empty string could
cause a failure.

Now, set the default state in ::init() to SSO (which is what happened
before when we were using String(char *s="")) and fix the crash.
2019-10-01 13:02:02 -07:00
Earle F. Philhower, III
97c926ea91 Move all PSTRs to own section, allow string dedup (#6565)
* Move all PSTRs to own section, allow string dedup

GNU ld can deduplicate strings, and does so for most normal char *s
automatically.  However, for PSTRs we were using a unique section per
string *and* the section was not flagges as containing dedupable
0-terminated strings.

Modify the PSTR macro to emit assembly, which lets us set the section
flags required (SM) for the variables, and use inline assembly to get
the asm-block defined address.

Should result in smaller compiled binaries if any strings are
duplicated.

* Give each PSTR its own segment

* Allow disposing of unused strings before merging

Add the "a" section flag to allow the linker to throw away unneeded
strings.  Without this flag, the linker will not discard unreferenced
strings and ROMs will increase in size, possibly dramatically.
2019-10-01 01:27:10 +02:00
david gauchard
ffe5476fc4 time: import IANA timezone definitions, expose SNTP API (#6373)
* time: import IANA timezone definitions
- `configTime("timezone", "ntp servers...")` added
- timezone definitions by country/cities (TZ.h)
- script to update timezone definitions
- updated example

* fix former configTime non-matching signature

* +include

* example: add scheduled function in callback

* crlf fix

* +missing license for napt

* SNTP: expose configuration helpers

* update submodule

* update precompiled libraries

* optional: change SNTP startup delay

* makes SNTP_UPDATE_DELAY a weak function
update example
fix for lwip1.4

* on the proper use of polledTimeout api... thanks @mcspr :]

* improve update script (per review)

* update lwIP submodule

* update submodule

* hide harmless shell message

* update the release process by asking first to update TZ.h
[ci skip]

* minor update in release documentation

* update in release documentation

* update in release documentation

* clarify release documentation

* fix release documentation - sorry for the noise :(

* fixes per review

* example style

* useless variable in example

* update lwip2 submodule reference, to include espressif missing declaration fixes
2019-09-29 00:25:01 -03:00
M Hightower
831d6431bc Add typedef for putc1, fn_putc1_t. (#6550)
* Add typedef for putc1, fn_putc1_t.
Replaced relevant usage of `(void *)` with `fn_putc1_t`.
Correct usage of `ets_putc()`, returning 0, in libc_replacement.cpp
This PR assumes PR https://github.com/esp8266/Arduino/pull/6489#issue-315018841 has merged and removes `uart_buff_switch` from `umm_performance.cpp`
Updated method of defining `_rom_putc1` to be more acceptable (I hope) to the new compiler.

* Use PROVIDE to expose ROM function entry point, ets_uart_putc1.
Added comments to ets_putc() and ets_uart_putc1() to explain their
differences. Change prototype of ets_putc() to conform with fp_putc_t.
Updated _isr_safe_printf_P to use new definition, ets_uart_putc1.
2019-09-27 14:23:16 -07:00
Earle F. Philhower, III
418b00f7c0 Re-add deprecated _SPIFFS_xxx linker symbols (#6543)
In order to give user libs a change to update to the new symbols, re-add
the _SPIFFS_XX symbols to the linker file with a comment that they are
deprecated.

Also add back spiffs_hal_xxx functions, also marked as deprecated.

Fixes #6542
2019-09-26 21:28:07 +02:00
Mike Nix
244dbd7713 Add 20/26MHz Flash frequencies for slow/cheap flash chips on the Generic ESP board (#6552)
A number of non-genuine boards exist mainly from flea-bay sellers that
use under-sized and/or low quality flash chips which can not handle
a 40MHz FlashFreq properly.

This patch adds slower flash frequencies to the menu for generic ESP boards
so that these cheap knock-offs can be run in a stable manner, hopefully saving
some people a few headaches and keeping these boards out of landfill.
2019-09-24 10:32:11 -03:00
Earle F. Philhower, III
69f3e81fb9
Restore EEPROM address to prior released location (#6537)
When the FS_END was adjusted to end on a full block (i.e. rounded down)
to avoid filesystem issues, but _FS_end was changed.  The EEPROM library
used _FS_end to implicitly calculate the start of the EEPROM data, so
this means after the _FS_end fix, EEPROM data written with prior
releases would "disappear."

Avoid the issue by explicitly calculating the EEPROM start location in
the linker, using the same formula as prior release.

Fixes #6531
2019-09-20 08:24:10 -07:00
david gauchard
a10e02e998
segment size printout cosmetics (#6534)
* segment size printout cosmetics

* improve readability
2019-09-20 00:04:28 +02:00
Earle F. Philhower, III
f2de9e130c
Add segment size printout to standard build process (#6525)
Since IRAM is such a precious resource on the ESP8266, dump out its size
(and all other segments) at the end of the build process.

Ex:
Executable segment sizes:
IROM   : 338932
IRAM   : 27263
DATA   : 1476
RODATA : 2896
BSS    : 30304
Sketch uses 370567 bytes (35%) of program storage space. Maximum is 1044464 bytes.
Global variables use 34676 bytes (42%) of dynamic memory, leaving 47244 bytes for local variables. Maximum is 81920 bytes.
2019-09-16 16:29:53 -07:00
Earle F. Philhower, III
8dd068eb40
Add memmove_P, use it in String to ensure F() safety (#6514)
memmove_P is now in libc, so use it to allow WString to handle F()
pointers without errors.

Supercedes #6368

Fixes #6384
2019-09-13 15:33:16 -07:00
Mike Nix
d8531cb2c4 Ets intr lock nest (#6484)
* Replace the SDK's use of ets_intr_lock/unlock with nestable versions

Testing has shown that there are several paths in the SDK that result in nested
calls to ets_intr_lock() / ets_intr_unlock() which may be a problem.

These functions also do not preserve the enabled interrupt level and may
result in code running with interrupts enabled when that is not intended.
This issue has recently been fixed in the Arduino code by using
xt_rsil() / xt_wsr_ps() but still exists in the Espressif SDK code.

This commit is intended to fix that and should be used in addition to the above.

The maximum nesting I have seen is 2 and lock/unlock calls appear to be balanced.
A max of 7 levels of nesting leaves plenty of room for that to change.

* make ets_intr_lock_stack uint16_t and behave like the original on over/underflow

The PS register is 15 bits, we should store the whole thing as xt_wsr_ps()
writes the whole thing.

Also if there is an underflow, we should make sure interrupts are enabled.
Same goes for overflow making sure interrupts are disabled, although this
is less important.

* Rename ets_intr_(un)lock_nest to ets_intr_(un)lock

This saves having to modify libmain.a, libpp.a and libnet80211.a to use the
nested versions.
Adjusts fix_sdk_libs.sh accordingly.

* Remove ets_intr_(un)lock from the rom .ld as we no longer use them

* ets_post() wrapper to preserve interrupt state

Add a wrapper around the ets_post code in rom to preserve the interrupt enable state.

Rather than modifying the SDK libs, rename ets_post in the .ld file and call the
wrapper "ets_post" to replace it.

As far as I can establish, ets_post is the only rom function in use by our code or
the SDK libs we use that causes calls to ets_intr_(un)lock.

* Add IRAM_ATTR to ets_intr_(un)lock and ets_post wrappers.

* Throw in a few comments and make ets_intr_lock_stack* static.
2019-09-10 23:59:07 -03:00
Earle F. Philhower, III
1f86311d79
Add Win32 build to CI system (#6493)
Build a single INO under a Windows VM on Travis to ensure
that the Win32 toolchain works properly.

In build.py, instead of making a string with spaces and then
splitting on " ", just make the list itself with individual parameters.
This will allow spaces in paths to be supported properly.
2019-09-10 14:50:55 -07:00
david gauchard
5ca0bde200 MDNS: fix random crash on startup (#6261)
* mDNS debug option + AP address is used by default when STA is also present

* mDNS: store network interface, checking it is up

* igmp: force on selected interface (avoid crash *sometimes*)

* fix for all lwip2 ipv4 ipv6 & lwip1

* mdns: IPAddress is not needed to reference associated interface

* mdns: debug: fix print warnings

* emulation: add ets_strncpy

* emulation: truly emulate AddrList (remove fake one)
2019-09-04 20:10:47 -07:00
david gauchard
85f1ea7c78
exceptions: optionally enforce c++ standards (#6333)
* exceptions: 3 choices: legacy, std::new never returns 0, or exceptions enabled
* arduino_new (doc, example, array)
2019-08-29 00:21:10 +02:00
Earle F. Philhower, III
0a031ce957
Move all scripts and documentation to Python3 (#6378)
* Move all scripts and documentation to Python3

Python 2 EOL is Jan 1, 2020.  Migrate scripts to run under Python 3.

Under Windows, we're already running Python 3.7, by dumb luck.  The
oddness is that the Windows standalone executable for Python 3 is called
"python" whereas under UNIX-like OSes it's called "python3" with
"python" always referring to the Python 2 executable.  The ZIP needs to
be updated to include a Python3.exe (copy of Python.exe) so that we can
use the same command lines under Linux and Windows, and to preserve my
sanity.

Fixes #6376

* Add new Windows ZIP with python3.exe file

* Sort options in boards.txt generation for repeatability

The order of the board opts dict changes depending on the Python version
and machine, so sort the options before printing them to get a stable
ordering.

* Re-add Python2 compatibility tweaks

Most scripts can run as Python 2 or Python 3 with minimal changes, so
re-add (and fix, as necessary) compatibility tweaks to the scripts.
2019-08-28 12:42:48 -07:00