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The sre test suite currently overruns the stack on Win64, Linux64, and Monterey

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(64-bit AIX) This is because the RECURSION_LIMIT is too low. This patch lowers
to recusion limit to 7500 such that the recusion check fires before a segfault.

Fredrik suggested/approved the fix in private email, modulo sre's recusion
limit checking no being necessary when PyOS_CheckStack is implemented for
Windows.
This commit is contained in:
Trent Mick 2000-08-16 22:29:55 +00:00
parent 1aebadf0e5
commit 239548f37d
1 changed files with 11 additions and 2 deletions
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13
Modules/_sre.c
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@ -58,9 +58,18 @@ char copyright[] = " SRE 0.9.8 Copyright (c) 1997-2000 by Secret Labs AB ";
/* -------------------------------------------------------------------- */
/* optional features */
/* prevent run-away recursion (bad patterns on long strings) */
/* prevent run-away recursion (bad patterns on long strings)
Require a smaller recursion limit for a number of 64-bit platforms
to prevent stack overflow:
Win64 - MS_WIN64, Linux64 - __LP64__, Monterey (64-bit AIX) - _LP64
XXX Or maybe this should be defined for all SIZEOF_VOIDP>4 platforms?
*/
#if !defined(USE_STACKCHECK)
#define USE_RECURSION_LIMIT 10000
# if defined(MS_WIN64) || defined(__LP64__) || defined(_LP64)
# define USE_RECURSION_LIMIT 7500
# else
# define USE_RECURSION_LIMIT 10000
# endif
#endif
/* enables fast searching */