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Update main.c - #3

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@tannewt tannewt commented Aug 23, 2019

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tannewt force-pushed the master branch 2 times, most recently from 3ec96b9 to 7b51086 Compare August 27, 2019 19:37
@tannewt tannewt closed this Aug 27, 2019
tannewt pushed a commit that referenced this pull request Dec 18, 2019
tannewt pushed a commit that referenced this pull request May 12, 2020
add standard SPI support to QSPI for external flash
tannewt pushed a commit that referenced this pull request May 27, 2020
tannewt pushed a commit that referenced this pull request Jan 21, 2021
tannewt pushed a commit that referenced this pull request Feb 13, 2021
tannewt pushed a commit that referenced this pull request Apr 23, 2021
tannewt pushed a commit that referenced this pull request Jun 24, 2021
asan considers that memcmp(p, q, N) is permitted to access N bytes at each
of p and q, even for values of p and q that have a difference earlier.
Accessing additional values is frequently done in practice, reading 4 or
more bytes from each input at a time for efficiency, so when completing
"non_exist<TAB>" in the repl, this causes a diagnostic:

    ==16938==ERROR: AddressSanitizer: global-buffer-overflow on
    address 0x555555cd8dc8 at pc 0x7ffff726457b bp 0x7fffffffda20 sp 0x7fff
    READ of size 9 at 0x555555cd8dc8 thread T0
        #0 0x7ffff726457a  (/usr/lib/x86_64-linux-gnu/libasan.so.5+0xb857a)
        #1 0x555555b0e82a in mp_repl_autocomplete ../../py/repl.c:301
        #2 0x555555c89585 in readline_process_char ../../lib/mp-readline/re
        #3 0x555555c8ac6e in readline ../../lib/mp-readline/readline.c:513
        #4 0x555555b8dcbd in do_repl /home/jepler/src/micropython/ports/uni
        #5 0x555555b90859 in main_ /home/jepler/src/micropython/ports/unix/
        #6 0x555555b90a3a in main /home/jepler/src/micropython/ports/unix/m
        #7 0x7ffff619a09a in __libc_start_main ../csu/libc-start.c:308
        #8 0x55555595fd69 in _start (/home/jepler/src/micropython/ports/uni

    0x555555cd8dc8 is located 0 bytes to the right of global variable
    'import_str' defined in '../../py/repl.c:285:23' (0x555555cd8dc0) of
    size 8
      'import_str' is ascii string 'import '

Signed-off-by: Jeff Epler <[email protected]>
tannewt pushed a commit that referenced this pull request Jan 16, 2024
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