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This is based off intial work by @jirislaby in #481. However it
has been substantially modified.
Notably it includes a separate build sytem to build the runtimes which
is inspired by the old build system. The reason for doing this is
because CMake is not well suited for building the runtime:
* CMake is configured to use the host compiler, not the bitcode
compiler. These are not the same thing.
* Building the runtime using `add_custom_command()` is flawed
because we can't automatically get transitive depencies (i.e.
header file dependencies) unless the CMake generator is makefiles.
(See `IMPLICIT_DEPENDS` of `add_custom_command()` in CMake).
So for now we have a very simple build system for building the runtimes.
In the future we can replace this with something more sophisticated if
we need it.
Support for all features of the old build system are implemented apart
from recording the git revision and showing it in the output of
`klee --help`.
Another notable change is the CMake build system works much better with
LLVM installs which don't ship with testing tools. The build system
will download the sources for `FileCheck` and `not` tools if the
corresponding binaries aren't available and will build them. However
`lit` (availabe via `pip install lit`) and GTest must already be
installed.
Apart from better support for testing a significant advantage of the
new CMake build system compared to the existing "Autoconf/Makefile"
build system is that it is **not** coupled to LLVM's build system
(unlike the existing build system). This means that LLVM's
autoconf/Makefiles don't need to be installed somewhere on the system.
Currently all tests pass.
Support has been implemented in TravisCI and the Dockerfile for
building with CMake.
The existing "Autoconf/Makefile" build system has been left intact
and so both build systems can coexist for a short while. We should
remove the old build system as soon as possible though because it
creates an unnecessary maintance burden.
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* We don't need to build the native versions so that is now disabled
* We don't need to install (and hence build) the bytecode archive
library versions of klee-libc or kleeRuntimeIntrinsic for new versions
of LLVM right now (this is kind of messy).
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Make KLEE compile with LLVM 2.3.
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According to manual: putchar() return the character written as an
unsigned char cast to an int or EOF on error.
Use return value of write to return the correct value for putchar.
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Major changes are:
- Switching to llvm-link to build archive files
- Use GetMallocUsage instead of GetTotalMemoryUsage (be aware of bug in
LLVM 3.3 http://llvm.org/bugs/show_bug.cgi?id=16847)
- intrinsic library functions like memcpy/mov/set use weak linkage to be
replaced by e.g. uclibc functions
- rewrote linking with library
- enhanced MemoryLimit test case to check if mallocs were successful
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fixes the ntohs prototype in klee-libc, and removes some unused code.
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@146352 91177308-0d34-0410-b5e6-96231b3b80d8
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http://llvm.org/bugs/show_bug.cgi?id=6690.
The patch adds specialized versions of klee_get_value for different
types, fixing the previous klee_get_value function that sometimes
truncated 64bit parameters to 32bit.
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@107006 91177308-0d34-0410-b5e6-96231b3b80d8
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definitions of putchar and atoi.
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@102868 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@77822 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72346 91177308-0d34-0410-b5e6-96231b3b80d8
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- For compatibility we still accept 2 argument form of klee_make_symbolic, but
this will go away eventually.
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72265 91177308-0d34-0410-b5e6-96231b3b80d8
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- Lots more tweaks, documentation, and web page content is needed,
but this should compile & work on OS X & Linux.
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72205 91177308-0d34-0410-b5e6-96231b3b80d8
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