[BACKPORT] stm32f7:I2C reset Configure I2C pins as GPIO output #24
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Author: Jun-Tao <[email protected]> Date: Wed Jun 27 09:48:50 2018 +0800 Merged in david_s5/nuttx/master_f7_i2cfix (pull request #664) stm32f7:I2C reset Configure I2C pins as GPIO output Pins were reset to inputs in the deinit. This resets them to outputs. Approved-by: GregoryN <[email protected]>
dagar
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Jun 27, 2018
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* Simplify EINTR/ECANCEL error handling 1. Add semaphore uninterruptible wait function 2 .Replace semaphore wait loop with a single uninterruptible wait 3. Replace all sem_xxx to nxsem_xxx * Unify the void cast usage 1. Remove void cast for function because many place ignore the returned value witout cast 2. Replace void cast for variable with UNUSED macro
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* Simplify EINTR/ECANCEL error handling 1. Add semaphore uninterruptible wait function 2 .Replace semaphore wait loop with a single uninterruptible wait 3. Replace all sem_xxx to nxsem_xxx * Unify the void cast usage 1. Remove void cast for function because many place ignore the returned value witout cast 2. Replace void cast for variable with UNUSED macro
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set CONFIG_PRIORITY_INHERITANCE=y
set CONFIG_SEM_PREALLOCHOLDERS=0 or CONFIG_SEM_PREALLOCHOLDERS=8
#24 0x4dcab71 in __assert assert/lib_assert.c:37
#25 0x4d6b0e9 in nxsem_destroyholder semaphore/sem_holder.c:602
#26 0x4d80cf7 in nxsem_destroy semaphore/sem_destroy.c:80
#27 0x4d80db9 in sem_destroy semaphore/sem_destroy.c:120
#28 0x4dcb077 in nxmutex_destroy misc/lib_mutex.c:122
#29 0x4dc6611 in pipecommon_freedev pipes/pipe_common.c:117
#30 0x4dc7fdc in pipecommon_close pipes/pipe_common.c:397
#31 0x4ed4f6d in file_close vfs/fs_close.c:78
#32 0x6a91133 in local_free local/local_conn.c:184
#33 0x6a92a9c in local_release local/local_release.c:129
#34 0x6a91d1a in local_subref local/local_conn.c:271
#35 0x6a75767 in local_close local/local_sockif.c:797
#36 0x4e978f6 in psock_close socket/net_close.c:102
#37 0x4eed1b9 in sock_file_close socket/socket.c:115
#38 0x4ed4f6d in file_close vfs/fs_close.c:78
#39 0x4ed1459 in nx_close_from_tcb inode/fs_files.c:754
#40 0x4ed1501 in nx_close inode/fs_files.c:781
#41 0x4ed154a in close inode/fs_files.c:819
#42 0x6bcb9ce in property_get kvdb/client.c:307
#43 0x6bcd465 in property_get_int32 kvdb/common.c:270
#44 0x5106c9a in tz_offset_restore app/miwear_bluetooth.c:745
#45 0x510893f in miwear_bluetooth_main app/miwear_bluetooth.c:1033
#46 0x4dcf5c8 in nxtask_startup sched/task_startup.c:70
#47 0x4d70873 in nxtask_start task/task_start.c:134
#48 0x4e04a07 in pre_start sim/sim_initialstate.c:52
Signed-off-by: ligd <[email protected]>
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When enable CONFIG_STACK_CANARIES, in general, the stack check in the __gcov_fork function is: " return fork(); 18: e59f3020 ldr r3, [pc, #32] @ 40 <__gcov_fork+0x40> 1c: e5932000 ldr r2, [r3] 20: e59d3004 ldr r3, [sp, #4] 24: e0332002 eors r2, r3, r2 28: e3a03000 mov r3, #0 2c: 1a000002 bne 3c <__gcov_fork+0x3c>" r3 is obtained by taking the value of sp offset. But after opening thumb, the second comparison value in "8c6: 4a06 ldr r2, [pc, #24] @ (8e0 <__gcov_fork+0x30>) 8c8: 6811 ldr r1, [r2, #0] 8ca: 687a ldr r2, [r7, #4] 8cc: 4051 eors r1, r2" is obtained through r7. Since r7 stores the stack address at this time, which stores the address of the parent process, the stack out of bounds will occur in the child process Signed-off-by: wangmingrong1 <[email protected]>
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Author: Jun-Tao [email protected]
Date: Wed Jun 27 09:48:50 2018 +0800
Merged in david_s5/nuttx/master_f7_i2cfix (pull request #664)
stm32f7:I2C reset Configure I2C pins as GPIO output
Pins were reset to inputs in the deinit. This resets
them to outputs.
Approved-by: GregoryN [email protected]