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Don't create an archive if, for example, we are asked to print the index.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185697 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2013-07-05 13:03:07 +00:00
parent 7271ac2c03
commit 61de142984
2 changed files with 36 additions and 2 deletions
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17
test/Object/ar-create.test Normal file
View File

@ -0,0 +1,17 @@
Test which operations create an archive and which don't.
RUN: touch %t
RUN: rm -f %t.foo.a
RUN: not llvm-ar p %t.foo.a %t 2>&1 | FileCheck %s
RUN: not llvm-ar d %t.foo.a %t 2>&1 | FileCheck %s
RUN: not llvm-ar m %t.foo.a %t 2>&1 | FileCheck %s
RUN: not llvm-ar t %t.foo.a %t 2>&1 | FileCheck %s
RUN: not llvm-ar x %t.foo.a %t 2>&1 | FileCheck %s
RUN: llvm-ar q %t.foo.a %t 2>&1 | FileCheck --check-prefix=CREATE %s
RUN: rm -f %t.foo.a
RUN: llvm-ar r %t.foo.a %t 2>&1 | FileCheck --check-prefix=CREATE %s
RUN: rm -f %t.foo.a
CHECK: .foo.a': No such file or directory
CREATE: creating {{.*}}.foo.a

21
tools/llvm-ar/llvm-ar.cpp
View File

@ -642,6 +642,21 @@ doReplaceOrInsert(std::string* ErrMsg) {
return false;
}
bool shouldCreateArchive(ArchiveOperation Op) {
switch (Op) {
case Print:
case Delete:
case Move:
case DisplayTable:
case Extract:
return false;
case QuickAppend:
case ReplaceOrInsert:
return true;
}
}
// main - main program for llvm-ar .. see comments in the code
int main(int argc, char **argv) {
program_name = argv[0];
@ -665,13 +680,15 @@ int main(int argc, char **argv) {
ArchiveOperation Operation = parseCommandLine();
// Create or open the archive object.
if (!llvm::sys::fs::exists(ArchiveName)) {
if (shouldCreateArchive(Operation) && !llvm::sys::fs::exists(ArchiveName)) {
// Produce a warning if we should and we're creating the archive
if (!Create)
errs() << argv[0] << ": creating " << ArchiveName << "\n";
TheArchive = Archive::CreateEmpty(ArchiveName, Context);
TheArchive->writeToDisk();
} else {
}
if (!TheArchive) {
std::string Error;
TheArchive = Archive::OpenAndLoad(ArchiveName, Context, &Error);
if (TheArchive == 0) {