* Move functions out of IRAM when possible
umm_init() is called in OS startup after flash is enabled, and never
again.
cont_get_free_stack() shouldn't be called from IRQ.
Don't inline _iram_read_byte() function.
* Move system fault handler to flash, use new printf
The __wrap_system_restart call has been in flash for quite a while and
seems to be working fine. There were some support routines that were
placed in IRAM (mistakenly thinking the wrap_restart caller was also in
IRAM) which are now moved to flash.
Clean up the printf code to use the new stdlib which handles PGM_P
strings as format and arguments without any difficulty.
* Make STR macro more unique
Add double-underscores to some string assistance macros to avoid
conflicts with user applications.
* Use function, not macro, to save code space
Save ~2KB final bin size by using a ets_printf_P function and not
an inline macro. IRAM and HEAP unaffected.
* Don't actually touch the SP in the dump
Store a copy of the incoming stack pointer in the postmortem in order
to avoid actually changing the SP when a crash happend in BearSSL.
* Make C++ uncaught exceptions explicit
Use the term "Unhandled C++ exception" instead of just "Unhandled
exception" to make it clear such crashes are caused by a C++ throw
and now a system exception.
* uart fixes and BW improvements
* uart: read_char straightly use hw buffer
* +attributes for functions called by ISR
* uart: BW improvements
read_char straightly use hw buffer (+ ~10%bw)
read by block (+ ~190%bw) (instead of generic Stream::readBytes)
attributes for functions called by ISR
remove overrun message
remove some ISR flags which were not honoured
* fix merge
* fix buffer overflow
* serial stress test sketch
* astyle
* serial stress example: interactive keyboard, stop reading, overrun
* serial device test: bandwidth & overrun
* update + HardwareSerial::hasError()
* interactive overrun in example
* astyle
* Test using @plerup's SoftwareSerial as submodule (tag 3.4.1)
* update upstream ref (fix warning)
* host mock uart/read(buf,size)
* reset style changes in submodules before style diff
* update build_boards_manager_package.sh for submodules
* trigger CI (removing space)
* cannot reproduce locally the CI issue, setting bash -x option to get live trace
* remove previously added (in this PR) 'set -e' in package builder (passes local tests, not real CI)
script-comment new recipe.hooks.core.prebuild.3 (along with already commented .1 and .2)
moved CI package test to be first on the test list
remove 'set -x', wish me luck
* lwip2: better handling of ipv4_addr/t type + 3 sntp servers
* bump lwip2 version
* Only with FEATURES=1: 3 sntp servers and AutoIP enabled (169.254 when dhcp server fails)
* Only with FEATURES=1: 3 sntp servers and AutoIP enabled (169.254 when dhcp server fails)
* local CI runner: select build type
* new ipv4_addr/t definition makes things easier for IPAddress
* update local CI runner
* lwip2 changes
* lwip2: port esp-ping and espconn
* Make exceptions a configurable menu
Add a menu, Exceptions, which allows exceptions to be disabled for ROM
sensitive scripts. Default is enabled.
* Update to latest JSON builder
* weak hook early_setup() #2111#2133#2136
* rename to early_init (more "c" vs early_setup which is more "c++arduino")
* example
* improve earlyWiFi example, slightly change AddrList interface, move WiFi sketches into WiFi examples
* fix CI
* fix local CI runner
* fix local CI runner
* rename early_init() to preinit()
* + static ESP8266WiFiClass::preinit_wifi_off()
* update early disable wifi example
* example update
* IPv6 example update
* Update ESP8266WiFiGeneric.h
camelCase for static method name
* Update ESP8266WiFiGeneric.cpp
camelCase for static method name
* Update EarlyDisableWiFi.ino
Expand comment, fix static method name
* Update core_esp8266_main.cpp
Expanded comment.
* Update core_esp8266_main.cpp
Expanded comment
* Update EarlyDisableWiFi.ino
Expanded comment
* Move to PROGMEM aware libc, allow PSTR in printf()
A Newlib (libc) patch is in progress to move the _P functions from inside
Arduino into first-class citizens in libc. This Arduino patch cleans up
code that's been migrated there. Binaries for the new libs are included
because it seems they're part of the Arduino git tree, and should be
replaced with @igrr built ones when/if the Newlib changes are accepted.
Notable changes/additions for Arduino:
Allow for use of PROGMEM based format and parameter strings in all
*printf functions. No need for copying PSTR()s into RAM before printing
them out (transparently saves heap space when using _P functions) and
makes it easier to print out constant strings for applications.
Add "%S" (capital-S) format that I've been told, but cannot verify,
is used in Arduino to specify a PROGMEM string parameter in printfs,
as an alias for "%s" since plain "%s" can now handle PROGMEM.
Optimized the memcpy_P, strnlen_P, and strncpy_P functions to use 32-bit
direct reads whenver possible (source and dest alignment mediated), but
there is still room for improvement in others.
Finally, move several constant arrays from RODATA into PROGMEM and
update their accessors. Among these are the ctype array, ~260 bytes,
mprec* arrays, ~300 bytes, and strings/daycounts in the time
formatting functions, ~200 bytes. All told, sketches will see from
300 to 800 additional RAM heap free on startup (depending on their
use of these routines).
* Fix merge error in #ifdef/#endif
* Fix host test using the newlib generic pgmspace.h
Host tests now use the sys/pgmspace.h for compiles instead of the
ESP8266-specific version.
* Update with rebuilt libraries using latest newlib
* Include binaries built directly from @igrr repo
Rebuild the binaries using a git clone of
https://github.com/igrr/newlib-xtensa
Build commands for posterity:
````
rm -rf ./xtensa-lx106-elf/
./configure --prefix=<DIR>/esp8266/tools/sdk/libc --with-newlib \
--enable-multilib --disable-newlib-io-c99-formats \
--disable-newlib-supplied-syscalls \
--enable-newlib-nano-formatted-io --enable-newlib-reent-small \
--enable-target-optspace \
--program-transform-name="s&^&xtensa-lx106-elf-&" \
--disable-option-checking --with-target-subdir=xtensa-lx106-elf \
--target=xtensa-lx106-elf
rm -f etc/config.cache
CROSS_CFLAGS="-fno-omit-frame-pointer -DSIGNAL_PROVIDED -DABORT_PROVIDED"\
" -DMALLOC_PROVIDED" \
PATH=<DIR>/esp8266/tools/xtensa-lx106-elf/bin/:$PATH \
make all install
````
* Fix merge define conflict in c_types.h
* Fix strlen_P misaligned source error
Include fix from newlib-xtensa/fix-strlen branch cleaning up misaligned
access on a non-aligned source string.
* Fix strlen_P and strcpy_P edge cases
Ran the included test suite on ESP8266 tstring.c with the following defines:
#define MAX_1 50
#define memcmp memcmp_P
#define memcpy memcpy_P
#define memmem memmem_P
#define memchr memchr_P
#define strcat strcat_P
#define strncat strncat_P
#define strcpy strcpy_P
#define strlen strlen_P
#define strnlen strnlen_P
#define strcmp strcmp_P
#define strncmp strncmp_P
Uncovered edge case and return value problems in the optimized versions of
the strnlen_P and strncpy_P functions. Corrected.
* Fix memcpy_P return value
memcpy-1.c test suite showed error in return value of memcpy_P. Correct it.
* Fix strnlen_P/strlen_P off-by-4 error
Random crashes, often on String constructors using a PSTR, would occur due
to the accelerated strnlen_P going past the end of the string. Would make
debug builds fail, too (ESP.getVersionString() failure).
Fix to fall through to normal copy on a word that's got a 0 byte anywhere
in it.
* Add device tests for libc functional verification
Add test suite used to debug libc optimized _P functions to the device
tests.
* Rebuild from igrr's repo (same source as prior)
Rebuild .a from igrr's repo at 347260af117b4177389e69fd4d04169b11d87a97
* WIP - add exceptions
* Fix exception to have 0-terminator
* Move some exception constants to TEXT from RODATA
* Remove throw stubs
* Move more exception stuff to ROM
* Enable exceptions in platform.io
* Remove atexit, is duplicated in rebuilt lib
Need to look at the quick-toolchain options, there seems to be a definition
for atexit defined there (libgcc?) that needs to be excised. For now,
remove our local do-nothing copy.
* Update libgcc to remove soft-fp functions
The esp-quick-toolchain generated libgcc.a needed to have the soft-FP routines
that are in ROM removed from it. Remove them in the new esp-quick-toolchain
and update.
* Fix merge typos in Makefile
* Add unhandled exception handler to postmortem
* Return our atexit() handler
* Latest stdc++, minimize exception emercengy area
* Remove atexit from newlib
atexit was defined in newlib strongly, but we also define a noop atexit in core.
Since we never exit, use the core's noop and delete the atexit from libc.a
Updated in esp-quick-toolchain as well.
* Move __FUNCTION__ static strings to PROGMEM
__FUNCTION__ is unlikely to be a timing sensitive variable, so move it to
PROGMEM and not RODATA (RAM) using linker magic.
asserts() now should take no RAM for any strings.
* Clean up linker file, update to latest stdc++
* Update to latest stdc++ which doesn't call strerror
* Update to GCC5.1 exception emergency allocator
Using GCC 5.1's emergency memory allocator for exceptions, much less
space is required in programs which do not use exceptions and when
space is allocated it is managed more efficiently.
* Initial try with new compiler toolchain
* Include newlib built from esp-quick-toolchain
* Update JSON with all new esp-quick-toolchain builds
* Use 64bit Windows compiler on 64bit Windows
* Dump std::exception.what() when possible
When doing the panic on unhandled exceptions, try and grab the
.what() pointer and dump it as part of the termination info.
Makes it easy to see mem errors (std::bad_alloc) or std::runtime_error
strings.
* Use scripted install from esp-quick-toolchain
Makes sure proper libraries and includes are present by using a
scripted installation from esp-quick-install instead of a manual
one.
* Update eqk to remove atexit, fix packaging diff
Using a pluggable architecture, allow updates delivered via the Update
class to be verified as signed by a certificate. By using plugins, avoid
pulling either axTLS or BearSSL into normal builds.
A signature is appended to a binary image, followed by the size of the
signature as a 32-bit int. The updater takes a verification function
and checks this signature using whatever method it chooses, and if it
fails the update is not applied.
A SHA256 hash class is presently implemented for the signing hash (since
MD5 is a busted algorithm).
A BearSSLPublicKey based verifier is implemented for RSA keys. The
application only needs the Public Key, while to sign you can use
OpenSSL and your private key (which should never leave your control
or be deployed on any endpoints).
An example using automatic signing is included.
Update the docs to show the signing steps and how to use it in the
automatic and manual modes.
Also remove one debugging line from the signing tool.
Saves ~600 bytes when in debug mode by moving strings to PMEM
Windows can't run the signing script, nor does it normally have OpenSSL
installed. When trying to build an automatically signed binary, warn
and don't run the python.
* restore definition of ip_addr (=ipv4_addr) when IPv6 is not enabled
* overload IPAddress:operator == and != to avoid ambiguousness
* brings lwIP's INADDR_NONE (which is IPv4 255.255.255.255, suposed to be invalid address but it is)
* inet_aton is a lwIP define, rename Ethernet DNS implementation of this to prevent name collision
that's because IPAddress now includes lwip/inet.h
* PolledTimeout Class for wrapping millis() loops
* Add yield policies, improve reset, add host tests
* Fix copyright, comments
* adjust host tests for better time precision
* add fuzzyness to timing tests for CI jitter
* add blink example with polledTimeout
* improve namespace and type naming, add copyright, comments
* fix astyle
* i2s can send now buffers
* adding mono and stereo, with blocking and non blocking support
* fixing crash
* cosmetic changes
* we dont need the & 0xffff
* using unsigned integers since we'll never be using negative numbers
* WIP compile examples on host with 'make examples'
* WIP bufferize tcp input
* WIP Makefile
* WIP network to rework, tcp/udp to factorize, udp addresses broken
* minor changes to the core
* WIP basic udp working
* WIP mdns
* WIP mcast receiving, not sending
* WIP mdns OK
* beta version
* SSL + doc
* update travis host test command
* licenses
* typo
* doc: arduino builder is not around: declare functions before calling them
* fix with latest SSL PR, compile in 32 bits mode
* fix make clean
* make -m32 optional
* 32bits compiler ability tester
* WIP
* WIP (fix 1 vtable error, still another one to hunt with using spiffs)
* example astyle
* fix os_printf_plus
* load / save mock spiffs
* fix style
* fix using spiffs/mock
* don't mess ram
* update doc
* remove leftover
* optimization -Os except for CI, rename ARCH32 to FORCE32
* revert useless cast (not even compiled)
* remove unused function
* use proper type for pointer arithmetics
* makefile: sketch object and cpp file moved to bin/ directories
easier to clean, and IDE don't like them
* changes for review
* make use of %zd
* less verbose makefile by default (option)
* update readme
* Update to BearSSL 0.6+ release, add AES_CCM modes
Pull in latest BearSSL head (0.6 + minor additions) release and add AES_CCM
modes to the encryption options.
* Enable the aes_ccm initialization in client/server
* Initial attempt
* Working code with second stack thunking
* Remove #ifdefs in .S file, not needed.
* Clean up thunks and remove separate stack flag
* Fix PIO assembler errors
* Remove #ifdef code changes, ensure same code as PC
Remove "#ifdef ESP8266;...;#else;...;#endif" brackets in BearSSL to
ensure the host-tested code is the same as the ESP8266-run code.
* Move to latest BearSSL w/EC progmem savings
* Merge with master
* Add br_thunk_* calls to do ref counting, painting
Add reference counting br_thunk_add/del_ref() to replace stack handling code
in the class.
Add in stack painting and max usage calculation.
* Add in postmortem stack dump hooks
When a crash occurs while in the second stack, dump the BSSL stack and
then also the stack that it was called from (either cont or sys).
* Update stack dump to match decoder expectations
* Move thunk to code core for linkiage
The thunk code needs to be visible to the core routines, so move it to the
cores/esp8266 directory. Probably need to refactor the stack setup and the
bearssl portion to avoid dependency on bearssl libs in cores/esp8266
* Add 2nd stack dump utility routine
* Refactor once more, update stack size, add stress
Make stack_thunks generic, remove bearssl include inside of cores/esp8266.
Allocate the stack on a WiFiServerSecure object creation to avoid
fragmentation since we will need to allocate the stack to do any
connected work, anyway.
A stress test is now included which checks the total BearSSL second
stack usage for a variety of TLS handshake and certificate options
from badssl.org.
* Update to latest to-thunks branch
* Add BearSSL device test using stack stress
Run a series of SSL connection and transmission tests that stress
BearSSL and its stack usage to the device tests.
Modify device tests to include a possible SPIFFS generation and
upload when a make_spiffs.py file is present in a test directory.
* Use bearssl/master branch, not /to-thunks branch
Update to use the merged master branch of bearssl. Should have no code
changes.
The ISR could end up writing a 0 to a GPIO that had previously been
stopped, effectively overwriting user writes to those pins. Fix to
only actually disable and write when a pin was enabled and times out.
Fixes#5306
* Make stopWaveform call interrupt callable
Match the behavior of pre-2.4.2 PWM by allowing stopWaveform to be
called from an interrupt.
Fixes#5247
* Move to O2, save ~500 bytes of code
The actual runtime difference of -O2 vs -O3 is quite small, but -O3
takes ~500 more bytes of code (~300 more in IRAM, ~200 more in PMEM).
Allow the unused stack to be reset to the check value at any time in
the application, allowing for delta-stack calculations to be done.
Add ESP.resetFreeContStack() class method for general use.
Add in some dumping in the BearSSL_Validation example to show the
usage for those that care.
Make HTTPClient take a WiFiClient parameter, allowing you to pass in a
simple HTTP WiFiClient or a BearSSL or axTLS WiFiClientSecure with
any desired verification options. Deprecate the older, TLSTraits methods.
Add basic HttpsClient example.
Add optional LED feedback to the Update class
* Allow GPIO 9 and 10 for waveform generation
While most ESP8266 modules use quad-io mode for their SPI flash ROM,
there are some which only use dual-io mode. Allow the unused pins
(GPIO 9 and 10) to have waveforms generated on them. Should the user try
this on a quad-io mode board, expect very bad things to happen.
* Add variant for 8285 to init GPIO 9/10
The 8285 only has 2-bit flash IO, so the other two pins can be used as
inputs (9/10). Set them to input to mirror the way other pins are set
up.
* Update waveform gen to only allow 9/10 on 8285
Update the common.h in both generic (remove TODO, it's done!) and the
8285 variant to make isFlashInterfacePin macro correct. Use that macro
to disable pins 9 and 10 in the common, non-8285 case.
* add stubs for more exception throw calls
Fixes https://github.com/esp8266/Arduino/issues/3358
* libc: make putc_r implementation weak
newlib provides its own implementation of _putc_r, which will call
_write_r (possibly after buffering). Make our implementation weak to
allow using the one from newlib.
Fixes https://github.com/esp8266/Arduino/issues/4630
* libc: fix incorrect return value of _write_r call
Should return number of bytes written, actually returned zero. This
resulted in std::cout going into failed state after the first write.
* tests: add test for output to std::cout
The memory allocation failure message was accidentally stored in RAM
and not in PROGMEM.
panic() did not place the __FILE__ string in PROGMEM, either.
Move both to PROGMEM, save ~64 bytes of heap (depends on size of path
of the Arduino core library).
__FILE__ is used to name the segments used for each PROGMEM constant,
but __FILE__ may have a space in it. This would cause compilation
errors.
Add quotes around the entire segment name to work around this.
According to the GCC man page, __section__ attributes should only be used
for global variables. However, the PROGMEM and ICACHE_RODATA macros use
this variable decorator even for local variables. Most of the time it works,
but when a static or inlined function tries to use a PROGMEM/PSTR/etc.
variable the compiler can throw an error like:
error: XXX causes a section type conflict with YYY
Change the PROGMEM macro to emit a section name that is unique (a combo
of the file, line, and counter variables to ensure uniqueness). The
standard linker script will place them properly in .IROM without
any changes.
Fixes#5036 and others.
* Function added to detect baudrate
* Added uart_start_detect_baudrate, detectBaudrate() wrappers for HardwareSerial and an example usage SerialDetectBaudrate.ino
* Some layout changes to pass Travis tests
* Some more nitty-gritty layout changes to pass Travis tests
* Some even more nitty-gritty layout changes to pass Travis tests
* renamed one function to testBaudrate() and updated doc/reference.rst
* Minor updates to doc/reference.rst
* New lines added
As @devyte noticed, PR #4955 has an issue when you catenate a string to
itself and the string used to hold a longer value because it does not
explicitly 0-terminate the resulting string. If the string was extended,
however, reserve() would 0-terminate by default.
Always terminate the result of `s += s;` now.
When a string is concatted to itself, the pointer to its c_str can change
due to realloc(). This would invalidate the passed-in pointer being
concatted, and cause a use-after-free error. Special case this to avoid
the issue. Now "a += a;" works properly.
Also use sprintf(%{l}d) instead of non-POSIX ltoa/itoa calls to construct a
string from a signed number (in base 10 only). The non-posix versions don't
handle INT_MIN properly on either host_tests or on the ESP8266.
