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Fix a problem with llvm-ranlib that (on some platforms) caused the archive

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file to become corrupted due to interactions between mmap'd memory segments
and file descriptors closing. The problem is completely avoiding by using
a third temporary file.

Patch provided by Evan Jones


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24527 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2005-11-30 05:21:10 +00:00
parent 5b9bbc8792
commit 6ff7240a5c
6 changed files with 177 additions and 72 deletions
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3
include/llvm/Bytecode/Archive.h
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@@ -489,6 +489,9 @@ class Archive {
bool fillHeader(const ArchiveMember&mbr,
ArchiveMemberHeader& hdr,int sz, bool TruncateNames) const;
/// @brief Frees all the members and unmaps the archive file.
void Archive::cleanUpMemory();
/// This type is used to keep track of bytecode modules loaded from the
/// symbol table. It maps the file offset to a pair that consists of the
/// associated ArchiveMember and the ModuleProvider.