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Created on 2010年11月04日 11:43 by hfuru, last changed 2022年04月11日 14:57 by admin. This issue is now closed.
| Messages (5) | |||
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| msg120391 - (view) | Author: Hallvard B Furuseth (hfuru) | Date: 2010年11月04日 11:43 | |
dlmalloc uses mremap() which is undeclared on Linux, needs _GNU_SOURCE. This can break at least on hosts where void* = 64 bits and int (default return type) 32 bits, since some bits in the return type are lost. A minimal patch is: --- Modules/_ctypes/libffi/src/dlmalloc.c +++ Modules/_ctypes/libffi/src/dlmalloc.c @@ -459,2 +459,4 @@ #define MMAP_CLEARS 0 /* WINCE and some others apparently don't clear */ +#elif !defined _GNU_SOURCE +#define _GNU_SOURCE 1 /* mremap() in Linux sys/mman.h */ #endif /* WIN32 */ However the (char*)CALL_MREMAP() cast looks like a broken fix for this, it suppresses a warning instead of fixing it. Maybe you should remove the cast and instead assign CALL_MREMAP() to a void*, to catch any similar trouble in the future. |
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| msg140688 - (view) | Author: Barry A. Warsaw (barry) * (Python committer) | Date: 2011年07月19日 18:54 | |
I'm running into this while trying to backport Python 2.7.2 to Ubuntu 10.04. Our build machines are throwing an error because they catch the implicit cast so as to prevent problems on ia64 and amd64. http://wiki.debian.org/IMplicitPointerConversions I haven't quite gotten the patch to work yet, but when I do, I'll look at applying this patch upstream as well. |
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| msg140695 - (view) | Author: Barry A. Warsaw (barry) * (Python committer) | Date: 2011年07月19日 21:26 | |
Python 3.1 is in security only mode, so this patch cannot be applied to that version. |
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| msg140711 - (view) | Author: Roundup Robot (python-dev) (Python triager) | Date: 2011年07月19日 23:28 | |
New changeset 8f3cc8ffc3ff by Barry Warsaw in branch '2.7': - Issue #10309: Define _GNU_SOURCE so that mremap() gets the proper http://hg.python.org/cpython/rev/8f3cc8ffc3ff New changeset cc00e09404e6 by Barry Warsaw in branch '3.2': - Issue #10309: Define _GNU_SOURCE so that mremap() gets the proper http://hg.python.org/cpython/rev/cc00e09404e6 New changeset 9986fff720a2 by Barry Warsaw in branch 'default': - Issue #10309: Define _GNU_SOURCE so that mremap() gets the proper http://hg.python.org/cpython/rev/9986fff720a2 |
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| msg188140 - (view) | Author: Roundup Robot (python-dev) (Python triager) | Date: 2013年04月30日 08:05 | |
New changeset 663800e18fef by Gregory P. Smith in branch '3.2': This local change was lost during the fixing of issue17192 to update http://hg.python.org/cpython/rev/663800e18fef New changeset 7438d202e380 by Gregory P. Smith in branch '2.7': This local change was lost during the fixing of issue17192 to update http://hg.python.org/cpython/rev/7438d202e380 |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022年04月11日 14:57:08 | admin | set | github: 54518 |
| 2013年04月30日 08:05:38 | python-dev | set | messages: + msg188140 |
| 2011年07月19日 23:30:37 | barry | set | status: open -> closed resolution: fixed |
| 2011年07月19日 23:28:37 | python-dev | set | nosy:
+ python-dev messages: + msg140711 |
| 2011年07月19日 21:26:18 | barry | set | messages:
+ msg140695 versions: + Python 3.3, - Python 3.1 |
| 2011年07月19日 19:07:07 | barry | set | assignee: barry |
| 2011年07月19日 19:02:50 | brian.curtin | set | assignee: theller -> (no value) nosy: - theller |
| 2011年07月19日 18:54:12 | barry | set | nosy:
+ barry messages: + msg140688 versions: + Python 2.7 |
| 2010年11月04日 13:15:41 | hfuru | set | versions: + Python 3.1 |
| 2010年11月04日 12:53:09 | pitrou | set | assignee: theller nosy: + theller |
| 2010年11月04日 11:55:21 | vstinner | set | nosy:
+ vstinner |
| 2010年11月04日 11:43:44 | hfuru | create | |