The IAR build system does not allow two files to have the same name.
This renames the i2c_api.c file for the STM32F1 family to
i2c_api_stm32f1.c to avoid this issue. The common i2c_api.c file shared
among all ST targets is not actually used for STM32F1 targets as it
protected with an #ifdef guard.
The tools will no longer accept `--cflags`, `--cppflags`, or
`--ldflags`. Instead, the ability to modify these flags is
provided by the `--profile` argument. Documentation for the
`--profile` argument may be found in
docs/Toolchain_Profiles.md
This fixes an issue where the absolute path causes a file error if the
compiler paths are configured incorrectly. It uses a relative path
instead now (the files appears to be in the default search path).
- GPIO: mode was not allowed by ST HAL API
- PIN map: assert has highlighted an issue for pullup/pulldown setting
- RTC: year after 2000 was not taken into account
- RCC init: unused clock was enabled without any init parameters
- RCC init: one PLL parameter was missing
- ADC: a parameter setting was missing to init clock
- GPIO: mode was not allowed by ST HAL API
- ll_utils: compilation issue
During open, the socket checked the internal stack variable,
assuming it would alway be null on a socket not connected to
the network. However, when a socket is closed, the stack variable
was not updated, causing the socket to incorrectly return a
parameter error if reopened.
The simple fix was to set the stack to null on close. A non-null
stack is a predicate for a non-null socket variable, so no additional
checks are needed in socket functions.
It's currently possible to generate a socket event when a non-blocking socket is closed:
1. _pending is set to 0 in https://github.com/ARMmbed/mbed-os/blob/master/features/netsocket/TCPSocket.cpp#L22
when the socket is created.
2. close() calls event() in https://github.com/ARMmbed/mbed-os/blob/master/features/netsocket/Socket.cpp#L66
3. event() increments _pending, and since _pending is 1 it will call _callback() in https://github.com/ARMmbed/mbed-os/blob/master/features/netsocket/TCPSocket.cpp#L167
However, if send() (for example) is called, this can happen:
- send() is called and sets _pending to 0.
- when the data is sent, event() is called, which sets _pending to 1 and calls _callback().
- if close() is called at this point, there won't be an event generated for close() anymore,
since _pending will be set to 2.
Same thing for recv. Also, same thing for TCPServer and UDPSocket.
This PR changes the initial value of _pending to 1 instead of 0, so that
events are never generated for close().