Toshaan Bharvani
3 years ago
commit
061dd4747e
2 changed files with 195 additions and 0 deletions
@ -0,0 +1,74 @@
@@ -0,0 +1,74 @@
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examples/ucontext-cp.c: cope with variable SIGSTKSZ |
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BZ: 1980845 |
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commit 8aac320ae8445c5434ab3be1761414a5247e5d42 |
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Author: Stefan Hajnoczi <stefanha@redhat.com> |
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Date: Tue Apr 13 16:03:19 2021 +0100 |
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examples/ucontext-cp.c: cope with variable SIGSTKSZ |
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The size of C arrays at file scope must be constant. The following |
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compiler error occurs with recent upstream glibc (2.33.9000): |
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CC ucontext-cp |
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ucontext-cp.c:31:23: error: variably modified ‘stack_buf’ at file scope |
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31 | unsigned char stack_buf[SIGSTKSZ]; |
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| ^~~~~~~~~ |
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make[1]: *** [Makefile:26: ucontext-cp] Error 1 |
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The following glibc commit changed SIGSTKSZ from a constant value to a |
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variable: |
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commit 6c57d320484988e87e446e2e60ce42816bf51d53 |
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Author: H.J. Lu <hjl.tools@gmail.com> |
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Date: Mon Feb 1 11:00:38 2021 -0800 |
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sysconf: Add _SC_MINSIGSTKSZ/_SC_SIGSTKSZ [BZ #20305] |
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... |
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+# define SIGSTKSZ sysconf (_SC_SIGSTKSZ) |
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Allocate the stack buffer explicitly to avoid declaring an array at file |
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scope. |
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Cc: H.J. Lu <hjl.tools@gmail.com> |
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> |
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Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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diff --git a/examples/ucontext-cp.c b/examples/ucontext-cp.c |
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index 0b2a6b5..ea0c934 100644 |
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--- a/examples/ucontext-cp.c |
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+++ b/examples/ucontext-cp.c |
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@@ -28,7 +28,7 @@ |
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typedef struct { |
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struct io_uring *ring; |
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- unsigned char stack_buf[SIGSTKSZ]; |
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+ unsigned char *stack_buf; |
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ucontext_t ctx_main, ctx_fnew; |
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} async_context; |
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@@ -115,8 +115,13 @@ static int setup_context(async_context *pctx, struct io_uring *ring) |
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perror("getcontext"); |
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return -1; |
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} |
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- pctx->ctx_fnew.uc_stack.ss_sp = &pctx->stack_buf; |
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- pctx->ctx_fnew.uc_stack.ss_size = sizeof(pctx->stack_buf); |
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+ pctx->stack_buf = malloc(SIGSTKSZ); |
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+ if (!pctx->stack_buf) { |
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+ perror("malloc"); |
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+ return -1; |
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+ } |
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+ pctx->ctx_fnew.uc_stack.ss_sp = pctx->stack_buf; |
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+ pctx->ctx_fnew.uc_stack.ss_size = SIGSTKSZ; |
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pctx->ctx_fnew.uc_link = &pctx->ctx_main; |
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return 0; |
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@@ -174,6 +179,7 @@ static void copy_file_wrapper(arguments_bundle *pbundle) |
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free(iov.iov_base); |
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close(pbundle->infd); |
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close(pbundle->outfd); |
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+ free(pbundle->pctx->stack_buf); |
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free(pbundle->pctx); |
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free(pbundle); |
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@@ -0,0 +1,121 @@
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Name: liburing |
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Version: 0.7 |
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Release: 7%{?dist} |
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Summary: Linux-native io_uring I/O access library |
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License: (GPLv2 with exceptions and LGPLv2+) or MIT |
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Source0: https://brick.kernel.dk/snaps/%{name}-%{version}.tar.gz |
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Source1: https://brick.kernel.dk/snaps/%{name}-%{version}.tar.gz.asc |
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URL: https://git.kernel.dk/cgit/liburing/ |
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BuildRequires: gcc |
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BuildRequires: make |
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Patch0: 8aac320-examples-ucontext-cp.c-cope-with-variable-SIGSTKSZ.patch |
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%description |
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Provides native async IO for the Linux kernel, in a fast and efficient |
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manner, for both buffered and O_DIRECT. |
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%package devel |
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Summary: Development files for Linux-native io_uring I/O access library |
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Requires: %{name}%{_isa} = %{version}-%{release} |
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Requires: pkgconfig |
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%description devel |
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This package provides header files to include and libraries to link with |
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for the Linux-native io_uring. |
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%prep |
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%autosetup -p1 |
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%build |
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%set_build_flags |
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./configure --prefix=%{_prefix} --libdir=/%{_libdir} --libdevdir=/%{_libdir} --mandir=%{_mandir} --includedir=%{_includedir} |
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%make_build |
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%install |
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%make_install |
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%files |
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%attr(0755,root,root) %{_libdir}/liburing.so.* |
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%license COPYING |
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%files devel |
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%{_includedir}/liburing/ |
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%{_includedir}/liburing.h |
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%{_libdir}/liburing.so |
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%exclude %{_libdir}/liburing.a |
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%{_libdir}/pkgconfig/* |
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%{_mandir}/man2/* |
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%changelog |
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* Mon Aug 09 2021 Mohan Boddu <mboddu@redhat.com> - 0.7-7 |
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- Rebuilt for IMA sigs, glibc 2.34, aarch64 flags |
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Related: rhbz#1991688 |
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* Fri Jul 09 2021 Jeff Moyer <jmoyer@redhat.com> - 0.7-6 |
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- Fix up use of SIGSTKSZ (Jeff Moyer) |
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- Resolves: rhbz#1980845 |
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* Fri Apr 16 2021 Mohan Boddu <mboddu@redhat.com> - 0.7-5 |
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- Rebuilt for RHEL 9 BETA on Apr 15th 2021. Related: rhbz#1947937 |
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* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.7-4 |
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild |
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* Mon Oct 19 2020 Davide Cavalca <dcavalca@fb.com> - 0.7-3 |
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- Drop exclude for armv7hl as it's no longer necessary |
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* Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.7-2 |
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild |
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* Tue Jul 21 2020 Stefan Hajnoczi <stefanha@redhat.com> - 0.7-1 |
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- Add io_uring_cq_eventfd_toggle() helper for new IORING_CQ_EVENTFD_DISABLED flag |
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- Add IORING_OP_TEE |
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- Documentation fixes and improvements |
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* Thu May 7 2020 Stefan Hajnoczi <stefanha@redhat.com> - 0.6-1 |
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- add io_uring_prep_splice() |
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- add io_uring_prep_provide_buffers() |
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- add io_uring_prep_remove_buffers() |
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- add io_uring_register_eventfd_async() |
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- reinstate io_uring_unregister_eventfd() (it was accidentally removed in 0.4) |
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* Thu Mar 19 2020 Stefan Hajnoczi <stefanha@redhat.com> - 0.5-1 |
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- Update license to GPL-2.0 OR MIT |
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- Add io_uring_prep_epoll_ctl() |
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- Add io_uring_get_probe(), io_uring_get_probe_ring() |
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- Add io_uring_register_probe() |
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- Add io_uring_{register,unregister}_personality() |
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- Add io_uring_prep_{recv,send}() |
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- Add io_uring_prep_openat2() |
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- Add io_uring_ring_dontfork() |
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- Add io_uring_prep_read() and io_uring_prep_write() |
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- Documentation fixes and improvements |
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* Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.3-2 |
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild |
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* Tue Jan 7 2020 Stefan Hajnoczi <stefanha@redhat.com> - 0.3-1 |
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- Add IORING_OP_STATX |
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- Add IORING_OP_OPENAT/IORING_OP_CLOSE helpers |
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- Add prep helpers for IORING_OP_FILES_UPDATE and IORING_OP_FALLOCATE |
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- Add io_uring_prep_connect() helper |
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- Add io_uring_wait_cqe_nr() |
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- Add IORING_OP_ASYNC_CANCEL and prep helper |
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* Thu Oct 31 2019 Jeff Moyer <jmoyer@redhat.com> - 0.2-1 |
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- Add io_uring_cq_ready() |
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- Add io_uring_peek_batch_cqe() |
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- Add io_uring_prep_accept() |
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- Add io_uring_prep_{recv,send}msg() |
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- Add io_uring_prep_timeout_remove() |
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- Add io_uring_queue_init_params() |
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- Add io_uring_register_files_update() |
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- Add io_uring_sq_space_left() |
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- Add io_uring_wait_cqe_timeout() |
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- Add io_uring_wait_cqes() |
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- Add io_uring_wait_cqes_timeout() |
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* Tue Jan 8 2019 Jens Axboe <axboe@kernel.dk> - 0.1 |
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- Initial version |
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