Pablo Galindo Salgado <[email protected]> added the comment:
I cannot initialize the interpreter after compiling with
--with-memory-sanitizer:
❯ CC=clang ./configure --with-memory-sanitizer && make -j
❯ ./python
Python 3.8.0a0 (heads/master:1584a00815, Nov 13 2018, 03:29:18)
[Clang 7.0.0 (tags/RELEASE_700/final)] on linux
Type "help", "copyright", "credits" or "license" for more information.
==10989==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x5592f18005c3 (/home/pablogsal/cpython/python+0x9a55c3)
#1 0x5592f175c176 (/home/pablogsal/cpython/python+0x901176)
#2 0x5592f17592da (/home/pablogsal/cpython/python+0x8fe2da)
#3 0x5592f1750f82 (/home/pablogsal/cpython/python+0x8f5f82)
#4 0x5592f174a336 (/home/pablogsal/cpython/python+0x8ef336)
#5 0x5592f174c906 (/home/pablogsal/cpython/python+0x8f1906)
#6 0x5592f14ae214 (/home/pablogsal/cpython/python+0x653214)
#7 0x5592f14a6915 (/home/pablogsal/cpython/python+0x64b915)
#8 0x5592f14a293c (/home/pablogsal/cpython/python+0x64793c)
#9 0x5592f0f5ad88 (/home/pablogsal/cpython/python+0xffd88)
#10 0x5592f0f5ce73 (/home/pablogsal/cpython/python+0x101e73)
#11 0x5592f0f4d908 (/home/pablogsal/cpython/python+0xf2908)
#12 0x7fd1a7381222 (/usr/lib/libc.so.6+0x24222)
#13 0x5592f0ed3cdd (/home/pablogsal/cpython/python+0x78cdd)
Uninitialized value was created by a heap allocation
#0 0x5592f0f02a0d (/home/pablogsal/cpython/python+0xa7a0d)
#1 0x7fd1a73cd790 (/usr/lib/libc.so.6+0x70790)
SUMMARY: MemorySanitizer: use-of-uninitialized-value
(/home/pablogsal/github/cpython/python+0x9a55c3)
Exiting
❯ clang --version
clang version 7.0.0 (tags/RELEASE_700/final)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
❯ /lib/libc.so.6
GNU C Library (GNU libc) stable release version 2.28.
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 8.2.1 20180831.
libc ABIs: UNIQUE IFUNC ABSOLUTE
For bug reporting instructions, please see:
<https://bugs.archlinux.org/>.
I am missing something or is this expected (as there are more PRs to come)?
----------
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Python tracker <[email protected]>
<https://bugs.python.org/issue35214>
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