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Srinath Parvathaneni b75ce33f0c aarch64: GCS feature check in GNU note properties for input objects
This patch adds support for Guarded Control Stack in AArch64 linker.

This patch implements the following:
1) Defines GNU_PROPERTY_AARCH64_FEATURE_1_GCS bit for GCS in
GNU_PROPERTY_AARCH64_FEATURE_1_AND macro.

2) Adds readelf support to read and print the GCS feature in GNU
properties in AArch64.

Displaying notes found in: .note.gnu.property
[      ]+Owner[        ]+Data size[    ]+Description
  GNU                  0x00000010      NT_GNU_PROPERTY_TYPE_0
      Properties: AArch64 feature: GCS

3) Adds support for the "-z gcs" linker option and document all the values
allowed with this option (-z gcs[=always|never|implicit]) where "-z gcs" is
equivalent to "-z gcs=always". When '-z gcs' option is omitted from the
command line, it defaults to "implicit" and relies on the GCS feature
marking in GNU properties.

4) Adds support for the "-z gcs-report" linker option and document all the
values allowed with this option (-z gcs-report[=none|warning|error]) where
"-z gcs-report" is equivalent to "-z gcs-report=warning". When this option
is omitted from the command line, it defaults to "warning".

The ABI changes adding GNU_PROPERTY_AARCH64_FEATURE_1_GCS to the GNU
property GNU_PROPERTY_AARCH64_FEATURE_1_AND is merged into main and
can be found in [1].

[1] https://github.com/ARM-software/abi-aa/blob/main/sysvabi64/sysvabi64.rst

Co-authored-by: Matthieu Longo <matthieu.longo@arm.com>
Co-authored-by: Yury Khrustalev <yury.khrustalev@arm.com>
2024-12-02 15:18:41 +00:00
bfd aarch64: GCS feature check in GNU note properties for input objects 2024-12-02 15:18:41 +00:00
binutils aarch64: GCS feature check in GNU note properties for input objects 2024-12-02 15:18:41 +00:00
config Re: nios2: Remove binutils support for Nios II target 2024-11-27 10:34:08 +10:30
contrib
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gas x86: default to not accepting MPX insns 2024-12-02 09:39:23 +01:00
gdb gdb: handle DW_AT_entry_pc pointing at an empty sub-range 2024-12-02 10:45:28 +00:00
gdbserver nios2: Remove all GDB support for Nios II targets. 2024-11-26 19:13:07 +00:00
gdbsupport gdbsupport: add unordered_dense.h 4.4.0 2024-11-25 22:07:03 -05:00
gnulib
gold Updated Bulgarian, Romanian and French translations for various sub-directories. New Georgian translation for the gold sub-directory. 2024-11-25 15:53:22 +00:00
gprof
gprofng Fix 32392 [2.44 Regression] gprofng fails to build on i686-linux-gnu 2024-11-27 13:55:03 -08:00
include aarch64: GCS feature check in GNU note properties for input objects 2024-12-02 15:18:41 +00:00
ld aarch64: GCS feature check in GNU note properties for input objects 2024-12-02 15:18:41 +00:00
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opcodes x86: default to not accepting MPX insns 2024-12-02 09:39:23 +01:00
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sim [sim] Run spellcheck.sh in sim (part 2) 2024-11-23 13:07:38 +01:00
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configure nios2: Remove binutils support for Nios II target. 2024-11-26 19:13:07 +00:00
configure.ac nios2: Remove binutils support for Nios II target. 2024-11-26 19:13:07 +00:00
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
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