Zayd Rajab 1be6822473 [AArch64][BTI] Add BTI hint + GNU property to fcontext trampolines (ELF/GAS) ...

The AArch64 fcontext trampolines (jump_fcontext, make_fcontext, ontop_fcontext)
are indirect-entry-points. On BTI-enforcing systems they must begin with a BTI
or the first resume can trap with SIGILL.

Insert `bti c` (hint #34) at each entry under `__ARM_FEATURE_BTI_DEFAULT`, and
emit `GNU_PROPERTY_AARCH64_FEATURE_1_BTI` from each AArch64 assembly file so
linkers map the DSO with PROT_BTI without requiring -z force-bti.

Scope: ELF/GAS AArch64 trampolines only; +4 bytes per entry

Fixes #308

2025-08-15 22:13:10 +00:00

..

asm

[AArch64][BTI] Add BTI hint + GNU property to fcontext trampolines (ELF/GAS)

2025-08-15 22:13:10 +00:00

posix

Suppressing -Wsign-conversion warnings

2023-10-28 21:02:03 -08:00

windows

Cease dependence on Thread

2021-06-12 22:23:08 +03:00

continuation.cpp

remove execution_context.hpp from contiunation.cpp

2021-06-01 17:42:50 +02:00

dummy.cpp

context: fix for bug #7864

2013-01-07 21:24:57 +00:00

fcontext.cpp

Convert make_fcontext etc into true C++ symbols

2024-10-14 13:23:16 +02:00

fiber.cpp

rename thread-local for fiber

2018-04-11 06:23:29 +02:00

untested.cpp

change untested - output

2014-02-20 19:41:07 +01:00