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* [Bug target/111046] New: bpf: support naked functions in BPF @ 2023-08-17 10:51 jemarch at gcc dot gnu.org 2023-08-17 12:40 ` [Bug target/111046] " cvs-commit at gcc dot gnu.org 2023-08-17 12:47 ` jemarch at gcc dot gnu.org 0 siblings, 2 replies; 3+ messages in thread From: jemarch at gcc dot gnu.org @ 2023-08-17 10:51 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111046 Bug ID: 111046 Summary: bpf: support naked functions in BPF Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: jemarch at gcc dot gnu.org Target Milestone: --- BPF programs make use of the `naked' function attribute. This attribute is supported by several targets in GCC but not currently by bpf targets. ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug target/111046] bpf: support naked functions in BPF 2023-08-17 10:51 [Bug target/111046] New: bpf: support naked functions in BPF jemarch at gcc dot gnu.org @ 2023-08-17 12:40 ` cvs-commit at gcc dot gnu.org 2023-08-17 12:47 ` jemarch at gcc dot gnu.org 1 sibling, 0 replies; 3+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2023-08-17 12:40 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111046 --- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jose E. Marchesi <jemarch@gcc.gnu.org>: https://gcc.gnu.org/g:b7c50f68f26146e7038e9793b6c623ff4c4895d3 commit r14-3284-gb7c50f68f26146e7038e9793b6c623ff4c4895d3 Author: Jose E. Marchesi <jose.marchesi@oracle.com> Date: Thu Aug 17 14:19:15 2023 +0200 bpf: support `naked' function attributes in BPF targets The kernel selftests and other BPF programs make extensive use of the `naked' function attribute with bodies written using basic inline assembly. This patch adds support for the attribute to bpf-unkonwn-none, makes it to inhibit warnings due to lack of explicit `return' statement, and updates documentation and testsuite accordingly. Tested in x86_64-linux-gnu host and bpf-unknown-none target. gcc/ChangeLog PR target/111046 * config/bpf/bpf.cc (bpf_attribute_table): Add entry for the `naked' function attribute. (bpf_warn_func_return): New function. (TARGET_WARN_FUNC_RETURN): Define. (bpf_expand_prologue): Add preventive comment. (bpf_expand_epilogue): Likewise. * doc/extend.texi (BPF Function Attributes): Document the `naked' function attribute. gcc/testsuite/ChangeLog * gcc.target/bpf/naked-1.c: New test. ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug target/111046] bpf: support naked functions in BPF 2023-08-17 10:51 [Bug target/111046] New: bpf: support naked functions in BPF jemarch at gcc dot gnu.org 2023-08-17 12:40 ` [Bug target/111046] " cvs-commit at gcc dot gnu.org @ 2023-08-17 12:47 ` jemarch at gcc dot gnu.org 1 sibling, 0 replies; 3+ messages in thread From: jemarch at gcc dot gnu.org @ 2023-08-17 12:47 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111046 Jose E. Marchesi <jemarch at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|UNCONFIRMED |RESOLVED --- Comment #2 from Jose E. Marchesi <jemarch at gcc dot gnu.org> --- Fixed with the above commit. ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-08-17 12:47 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-08-17 10:51 [Bug target/111046] New: bpf: support naked functions in BPF jemarch at gcc dot gnu.org 2023-08-17 12:40 ` [Bug target/111046] " cvs-commit at gcc dot gnu.org 2023-08-17 12:47 ` jemarch at gcc dot gnu.org
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