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Library support for aarch64-unknown-linux-pauthtest target#156548

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jchlanda:jakub/pac_lib
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Library support for aarch64-unknown-linux-pauthtest target#156548
jchlanda wants to merge 10 commits into
rust-lang:mainfrom
jchlanda:jakub/pac_lib

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@jchlanda jchlanda commented May 13, 2026

This is a follow up to #155722, adding library support for the target.

jchlanda and others added 10 commits May 13, 2026 11:47
@jchlanda @kovdan01
Introduce aarch64-unknown-linux-pauthtest
01ab5ef 
Co-authored-by: Daniil Kovalev <dkovalev@accesssoftek.com>
@jchlanda
New signature of get_fn_addr, teach Rust how to sign fn pointers
d419bcc 
Allow PAC metadata to be passed to `get_fn_addr` and related API
changes.
@jchlanda
Add pauth attributes and first IR tests
a2e2656 
The set of supported attributes is:
function
* "aarch64-jump-table-hardening"
* "ptrauth-auth-traps"
* "ptrauth-calls"
* "ptrauth-indirect-gotos"
* "ptrauth-returns"
module
* "ptrauth-elf-got"
* "ptrauth-sign-personality"
@jchlanda
Add support for init/fini signing and correctly sign extern weak globals
ef4e1e3 
Also add flag for ELF-GOT signing.
@jchlanda
Teach bootstrap how to build rust_test_helpers for pauthtest
b1a7b32 
Also:
* update tests to force dynamic library when targetting pauthtest
* various test fixes
* introduce end-to-end tests for pauthtest (in run-make)
@jchlanda
Override static libraries and warn on linking against that kind of libs
ec87aa2
@jchlanda
Correctly set f128 math support for pauthtest
e98f285
@jchlanda
Use target_env = "musl" & target_abi = "pauthtest"
e0c6f73
@jchlanda
Add library support for aarch64-unknown-linux-pauthtest
27c6d20
@jchlanda
Use target_env = "musl" & target_abi = "pauthtest" instead of env
72ea191
@rustbot rustbot added A-compiletest Area: The compiletest test runner A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. A-run-make Area: port run-make Makefiles to rmake.rs A-test-infra-minicore Area: `minicore` test auxiliary and `//@ add-core-stubs` A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels May 13, 2026
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jchlanda commented May 13, 2026

The relevant change is only in the two most recent commits, the rest is from the target introduction PR.

@jchlanda jchlanda mentioned this pull request May 13, 2026
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A-compiletest Area: The compiletest test runner A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. A-run-make Area: port run-make Makefiles to rmake.rs A-test-infra-minicore Area: `minicore` test auxiliary and `//@ add-core-stubs` A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue.

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