mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-12-24 12:13:42 +01:00
Fork of the libunwind official github repo — http://www.nongnu.org/libunwind/
5e832c337f
(Logical change 1.123) |
||
---|---|---|
aux | ||
BitKeeper/etc | ||
doc | ||
include | ||
scripts | ||
src | ||
tests | ||
acinclude.m4 | ||
aclocal.m4 | ||
AUTHORS | ||
ChangeLog | ||
ChangeSet | ||
configure | ||
configure.in | ||
COPYING | ||
INSTALL | ||
Makefile.am | ||
Makefile.in | ||
NEWS | ||
README | ||
TODO |
-*- mode: Outline -*- This is version 0.92 of the unwind library. At the moment, only the IA-64 Linux (IPF Linux) platform is fully supported. Some very basic support for x86 exists also. However, the x86 support is based purely on the frame-chain and does not use unwind information, so its utility is limited. * General Build Instructions In general, this library can be built and installed with the following commands: $ ./configure $ make $ make install prefix=PREFIX where PREFIX is the installation prefix. By default, a prefix of /usr/local is used, such that libunwind.a is installed in /usr/local/lib and unwind.h is installed in /usr/local/include. For testing, you may want to use a prefix of /usr/local instead. If, during the build, you're getting an error of the form: ../src/.libs/libunwind-ia64.so: undefined reference to `__tls_get_addr' it indicates that you have a compiler which supports the `__thread' keyword, but a runtime system (C library), which does not. As of September 2003, this appears to be a common problem for Debian "unstable" systems. To work around this issue, run "./configure" with option "--disable-__thread". * Building with Intel ECC To build libunwind with the Intel Electron compiler (ECC), it is recommended to run configure like this: $ ./configure CC=ecc CXX=ecc CCAS=gcc The reason for this is that ECC uses the Intel assembler, which doesn't grok some of the IA-64 assembly code in the "tests" directory. For an ECC-built version of libunwind to work properly, you also need to ensure that /usr/include/asm/fpu.h contains a "long double" member called "__dummy" in the declaration of "struct ia64_fpreg". Without that member, variables of type unw_context_t won't be aligned properly. * Building on HP-UX For the time being, libunwind must be built with GCC on HP-UX. Unfortunately, gcc-3.0 ships with a bad version of sys/types.h. The workaround for this is: $ mkdir $top_dir/include/sys $ cp /usr/include/sys/types.h $top_dir/include/sys * Regression Testing After building the library, you can run a set of regression tests with: $ make check Unless you have a very recent C library and compiler installed, it is currently expected to have the following tests fail: Gtest-init (should pass starting with glibc-2.3.x/gcc-3.4) Ltest-init (should pass starting with glibc-2.3.x/gcc-3.4) test-ptrace (should pass starting with glibc-2.3.x/gcc-3.4) run-ia64-test-dyn1 (should pass starting with glibc-2.3.x) This does not mean that libunwind cannot be used with older compilers or C libraries, it just means that for certain corner cases, unwinding will fail. Since they're corner cases, it is not likely for applications to trigger them. * Contacting the Developers Please direct all questions regarding this library to: libunwind@linux.hpl.hp.com For spam protection, you'll have to subscribe to this list before posting a question. You can do this by sending a mail to libunwind-request@linux.hpl.hp.com with a body of: subscribe libunwind Note: the host that is running this list is behind a firewall, so you'll not be able to use the Web interface to manage your subscription. Send a mail containing "help" to libunwind-request@linux.hpl.hp.com for information on how to manage your subscription via email.