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For CSD v1.0 the computed size is in bytes, so convert it to number of
512-byte blocks, and then ioctl(4) will return the correct value.

Also implement ioctl(5) to return the block size, which is always 512.
Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Yukai Li <yukaili.geek@gmail.com>

This commit works around a bug in xtensa-esp32-elf-gcc version esp-2020r3.

The bug is in generation of loop constructs.  The below code is generated
by the xtensa-esp32 compiler.  The first extract is the buggy machine code
and the second extract is the corrected machine code.  The test
`basics/logic_constfolding.py` fails with the first code and succeeds with
the second.

Disassembly of section .text.push_result_rule:

00000000 <push_result_rule>:
  ...
  d6:   209770       or      a9, a7, a7
  d9:   178976       loop    a9, f4 <push_result_rule+0xf4>
                     d9: R_XTENSA_SLOT0_OP   .text.push_result_rule+0xf4
  dc:   030190       rsr.lend        a9
  df:   130090       wsr.lbeg        a9
  e2:   a8c992       addi    a9, a9, -88
  e5:   06d992       addmi   a9, a9, 0x600
  e8:   130190       wsr.lend        a9
  eb:   002000       isync
  ee:   030290       rsr.lcount      a9
  f1:   01c992       addi    a9, a9, 1
  f4:   1494e7       bne     a4, a14, 10c <push_result_rule+0x10c>
                     f4: R_XTENSA_SLOT0_OP   .text.push_result_rule+0x10c

Disassembly of section .text.push_result_rule:

00000000 <push_result_rule>:
  ...
  d6:   209770       or      a9, a7, a7
  d9:   178976       loop    a9, f4 <push_result_rule+0xf4>
                     d9: R_XTENSA_SLOT0_OP   .text.push_result_rule+0xf4
  dc:   030190       rsr.lend        a9
  df:   130090       wsr.lbeg        a9
  e2:   000091       l32r    a9, fffc00e4 <push_result_rule+0xfffc00e4>
                     e2: R_XTENSA_SLOT0_OP   .literal.push_result_rule+0x18
  e5:   0020f0       nop
  e8:   130190       wsr.lend        a9
  eb:   002000       isync
  ee:   030290       rsr.lcount      a9
  f1:   01c992       addi    a9, a9, 1
  f4:   1494e7       bne     a4, a14, 10c <push_result_rule+0x10c>
                     f4: R_XTENSA_SLOT0_OP   .text.push_result_rule+0x10c

Work done in collaboration with @jimmo.
Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

Both led_init and led_state are configurable via MBOOT_BOARD_LED_INIT and
MBOOT_BOARD_LED_STATE respectively, so don't need to be MP_WEAK.

Furthermore, led_state and led0_state are private to ui.c so can be made
static.
Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

Newer versions of the ESP-IDF's toolchain use this relocation.

Fixes issue #8436.
Signed-off-by: Damien George <damien@micropython.org>

This IO was enabled in IDF commit 68f8b999bb69563f2f3d1d897bc073968f41f3bf,
which is available in IDF release v4.3.2 and above.
Signed-off-by: Damien George <damien@micropython.org>

This tests the build when -O2 is used, which can lead to additional
compiler analysis and warnings.
Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

This file is not executable so shouldn't have the shebang line.  This line
can cause issues when building on Windows msvc when the PyPython variable
is set to something other than "python", because it reverts back to using
the shebang line.

The top comment is also changed to """ style which matches all other
preprocessing scripts in the py/ directory.
Signed-off-by: Damien George <damien@micropython.org>

Without this, newer versions of gcc (eg 11.2.0) used with -O2 can warn
about `q_ptr` being maybe uninitialized, because it doesn't know that there
is at least one qstr being written in to this (alloca'd) memory.

As part of this, change the type of `n` to `size_t` so the compiler knows
it's unsigned and can generate better code.

Code size change for this commit:

       bare-arm:   -28 -0.049%
    minimal x86:    -4 -0.002%
       unix x64:    +0 +0.000%
    unix nanbox:   -16 -0.003%
          stm32:   -24 -0.006% PYBV10
         cc3200:   -32 -0.017%
        esp8266:    +8 +0.001% GENERIC
          esp32:   -52 -0.003% GENERIC
            nrf:   -24 -0.013% pca10040
            rp2:   -32 -0.006% PICO
           samd:   -28 -0.020% ADAFRUIT_ITSYBITSY_M4_EXPRESS
Signed-off-by: Damien George <damien@micropython.org>

Unbound sockets in NEW state should return HUP|WR when polled, and return
NVAL when in CLOSED state.

Otherwise include directories are added unconditionally to the build
variables if the component (submodule) is checked out.  This can lead to,
eg, the esp32 build using lib/lwip header files, instead of lwip header
files from the IDF.

Fixes issue #8727.
Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

Fix urandom not working on windows (there's no /dev/urandom) by using
a proper cryptographic random function (same one as CPython >= 3.11).

Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

With keyword arguments only or just a single non-keyword argument,
UART.init() did not perform the settings.

System config block contains hardware unrelated to USB.  So calling
`__SYSCFG_CLK_DISABLE()` during `HAL_PCD_MspDeInit()` has an adverse effect
on other system functionality.

Removing call to `__SYSCFG_CLK_DISABLE()` to rectify this issue.

This call was there since the beginning of the USB CDC code, added in
b30c02af.

According to ST Errata ES0206 Rev 18, Section 2.2.1, on STM32F427x,
STM32F437x, STM32F429x and STM32F439x.

If the system tick interrupt is enabled during stop mode while certain
bits are set in the DBGMCU_CR, then the system will immediately wake
from stop mode.

Suggested workaround is to disable system tick timer interrupt when
entering stop mode.

According to ST Errate ES0394 Rev 11, Section 2.2.17, on STM32WB55Cx and
STM32WB35Cx.

If the system tick interrupt is enabled during stop 0, stop 1 or stop 2
while certain bits are set in DBGMCU_CR, then system will immediately
wake from stop mode but the system remains in low power state. The CPU
therefore fetches incorrect data from inactive Flash, which can cause a
hard fault.

Suggested workaround is to disable system tick timer interrupt when
entering stop mode.

Signed-off-by: Damien George <damien@micropython.org>

This was added by mistake in 8f68e26f when
adding support for G4 MCUs, which does not using this get_bank() function.

FLASH_OPTR_DBANK is only defined on G4 and L4 MCUs, so on H7 this
FLASH_BANK_2 code was being wrongly excluded.
Signed-off-by: Damien George <damien@micropython.org>

Frozen identifiers now include their full name hierarchy, eg their class
name.  This makes it easier to understand the generated code.
Signed-off-by: Damien George <damien@micropython.org>

The sys.tracebacklimit feature has changed semantics a bit from CPython 3.7
(in the way it modifies the output), so provide a .exp file for the test so
it doesn't rely on CPython.
Signed-off-by: Damien George <damien@micropython.org>

To match MICROPY_PY_NETWORK_CYW43 and MICROPY_PY_NETWORK_NINAW10.
Signed-off-by: Damien George <damien@micropython.org>

Also remove redundant modusocket.c and modnetwork.c sources, they are
already added by extmod/extmod.cmake.
Signed-off-by: Damien George <damien@micropython.org>

The callback passed to add_alarm_in_ms must return microseconds, even
though the initial delay is in milliseconds.  Fix this use, and to avoid
further confusion use the add_alarm_in_us function instead.
Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

Now that the native qstr link table is gone, merging a native .mpy file
with a bytecode .mpy file is not as simple as concatenating the .mpy data.
The qstr_table and obj_table tables from all merged .mpy files must now be
joined together, because they are global to the .mpy file (and hence global
to the merged .mpy file).  This means the bytecode needs to be be decoded,
qstr_table and obj_table indices updated to point to the correct entries in
the new tables, and then the bytecode re-encoded.

This commit makes this change to the merging feature in mpy-tool.py.  This
can now merge an arbitrary number of bytecode .mpy files, and up to one
native .mpy file.
Signed-off-by: Damien George <damien@micropython.org>

This was made redundant by f2040bfc, which
also did not update this function for the change to qstr-opcode encoding,
so it does not work correctly anyway.
Signed-off-by: Damien George <damien@micropython.org>

Support for architecture-specific qstr linking was removed in
d4d53e9e, where native code was changed to
access qstr values via qstr_table.  The only remaining use for the special
qstr link table in persistentcode.c is to support native module written in
C, linked via mpy_ld.py.  But native modules can also use the standard
module-level qstr_table (and obj_table) which was introduced in the .mpy
file reworking in f2040bfc.

This commit removes the remaining native qstr liking support in
persistentcode.c's load_raw_code function, and adds two new relocation
options for constants.qstr_table and constants.obj_table.  mpy_ld.py is
updated to use these relocations options instead of the native qstr link
table.
Signed-off-by: Damien George <damien@micropython.org>

This PID is allocated for the Arduino Nano RP2040 running MicroPython.

This exercises the inclusion of a number of libraries in the rp2 port
including mbedtls and lwip.
Signed-off-by: Andrew Leech <andrew@alelec.net>

This works if your network is pre-configured in boot.py as an object called
"nic".  Without this, multitests expects to access the WLAN/LAN class which
isn't always correct.
Signed-off-by: Andrew Leech <andrew@alelec.net>