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kernel/pub/scm/libs/librseq/librseq/6aa188005649d7697385617d19a47cbb8ee18ad2
commit
6aa188005649d7697385617d19a47cbb8ee18ad2
[log]
author
Michael Jeanson <mjeanson@efficios.com>
Wed Apr 16 19:57:31 2025 +0000
committer
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Wed Apr 01 11:58:03 2026 -0400
tree
c23fcca2d6ffb8704a797a4097a5351cd6ccf5a6
parent
97b21aeccd50461cb22d3cc0fe4ce41330fed56a [diff]
Improve syscall errors test

Rework the test to first register with the original 32 byte ABI and then
with the current feature size if it's greater. This ensures we test the
'legacy' registration size on newer kernels.

Also add a test that registers an rseq area with a non-null rseq_cs
pointer to a valid structure. This ensures we don't break compatibility
with older libc that reuses rseq areas without clearing the rseq_cs
pointer.

Change-Id: Iefbf1a6fef77e3ae7bf1218ecff77b74a56dc180
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
3 files changed
tree: c23fcca2d6ffb8704a797a4097a5351cd6ccf5a6
  1. doc/
  2. include/
  3. LICENSES/
  4. m4/
  5. src/
  6. tests/
  7. .gitignore
  8. .gitreview
  9. bootstrap
  10. configure.ac
  11. LICENSE
  12. Makefile.am
  13. README.md
README.md

Library for Restartable Sequences

by Mathieu Desnoyers

Required and optional dependencies

The following dependencies are optional:

  • libnuma To build without this dependency run ./configure with --disable-numa
  • libseccomp

Building

Prerequisites

This source tree is based on the Autotools suite from GNU to simplify portability. Here are some things you should have on your system in order to compile the Git repository tree:

  • GNU Autotools (Automake >= 1.12, Autoconf >= 2.69, Autoheader >= 2.69; make sure your system-wide automake points to a recent version!)
  • GNU Libtool >= 2.2
  • GNU Make
  • pkg-config
  • Linux kernel headers from kernel >= 4.18 to build on x86, arm, ppc, and mips and from kernel >= 4.19 to build on s390.

Building steps

If you get the tree from the Git repository, you will need to run

./bootstrap

in its root. It calls all the GNU tools needed to prepare the tree configuration.

To build and install, do:

./configure
make
sudo make install
sudo ldconfig

Note: the configure script sets /usr/local as the default prefix for files it installs. However, this path is not part of most distributions' default library path, which will cause builds depending on librseq to fail unless -L/usr/local/lib is added to LDFLAGS. You may provide a custom prefix to configure by using the --prefix switch (e.g., --prefix=/usr).

Building against a local version of the kernel headers

cd /path/to/kernel/sources
make headers_install
cd /path/to/librseq
CPPFLAGS=-I/path/to/kernel/sources/usr/include ./configure
make
sudo make install
sudo ldconfig

Running the test suite

To run the test suite after a successful build:

make check

The default list of tests to run can be overriden by the TESTS variable:

make check TESTS="run_unregistered_test.tap"