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bpo-32043: New "developer mode": "-X dev" option (#4413)

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Add a new "developer mode": new "-X dev" command line option to
enable debug checks at runtime.

Changes:

* Add unit tests for -X dev
* test_cmd_line: replace test.support with support.
* Fix _PyRuntimeState_Fini(): Use the same memory allocator
   than _PyRuntimeState_Init().
* Fix _PyMem_GetDefaultRawAllocator()
This commit is contained in:
Victor Stinner 2017-11-16 03:20:31 -08:00 • committed by GitHub
parent 05cb728d68
commit ccb0442a33
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 110 additions and 25 deletions
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10
Modules/main.c
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@ -1396,6 +1396,16 @@ pymain_parse_envvars(_PyMain *pymain)
if (pymain_init_tracemalloc(pymain) < 0) {
return -1;
}
if (pymain_get_xoption(pymain, L"dev")) {
/* "python3 -X dev ..." behaves
as "PYTHONMALLOC=debug python3 -Wd -X faulthandler ..." */
core_config->allocator = "debug";
if (pymain_optlist_append(pymain, &pymain->cmdline.warning_options,
L"default") < 0) {
return -1;
}
core_config->faulthandler = 1;
}
return 0;
}