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45 lines
1,013 B
C
45 lines
1,013 B
C
#ifndef Py_INTERNAL_MMAP_H
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#define Py_INTERNAL_MMAP_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef Py_BUILD_CORE
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# error "this header requires Py_BUILD_CORE define"
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#endif
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#include "pycore_pystate.h"
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#if defined(HAVE_PR_SET_VMA_ANON_NAME) && defined(__linux__)
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# include <linux/prctl.h>
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# include <sys/prctl.h>
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#endif
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#if defined(HAVE_PR_SET_VMA_ANON_NAME) && defined(__linux__)
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static inline void
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_PyAnnotateMemoryMap(void *addr, size_t size, const char *name)
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{
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#ifndef Py_DEBUG
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if (!_Py_GetConfig()->dev_mode) {
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return;
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}
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#endif
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assert(strlen(name) < 80);
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int old_errno = errno;
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prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, (unsigned long)addr, size, name);
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/* Ignore errno from prctl */
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/* See: https://bugzilla.redhat.com/show_bug.cgi?id=2302746 */
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errno = old_errno;
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}
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#else
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static inline void
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_PyAnnotateMemoryMap(void *Py_UNUSED(addr), size_t Py_UNUSED(size), const char *Py_UNUSED(name))
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{
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}
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif // !Py_INTERNAL_MMAP_H
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