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Add error checks to Python objectifier (#281)

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PYOBJ.COM was failing when statically analyzing _pyio.py in MODE=dbg
because co_consts contained a big number, which dirtied the interpreter
exception state. We now do comprehensive error checking w/ Python API.

The -DSTACK_FRAME_UNLIMITED CPPFLAG has been removed from DES since its
self test function has been fixed to use heap memory rather than making
aggressive use of the stack.

This change also fixes a regression with function tracing (the --ftrace
flag a.k.a. ftrace_install() a.k.a. cosmo.ftrace) in ASAN build modes.
Lastly, the _tracemalloc module should now always be available for use
in MODE=dbg.
This commit is contained in:
Justine Tunney 2021-10-02 06:17:17 -07:00
parent 57f0eed382
commit 9cb54218ab
10 changed files with 323 additions and 422 deletions
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2
third_party/python/Objects/obmalloc.c vendored
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@ -85,7 +85,7 @@ static void* _PyObject_Calloc(void *ctx, size_t nelem, size_t elsize);
static void _PyObject_Free(void *ctx, void *p);
static void* _PyObject_Realloc(void *ctx, void *ptr, size_t size);
#else
#else
/* in MODE=asan, no pymalloc, so use macro */
#define _PyObject_Malloc(ctx, size) _PyMem_RawMalloc((ctx), (size))
#define _PyObject_Calloc(ctx, nelem, elsize) _PyMem_RawCalloc((ctx), (nelem), (elsize))