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Tharo 39f1b65043 [HWASAN] [RISC-V] Update EnableTaggingAbi for RISC-V linux. (#176616)
Cherry-picked from LLVM commit: 32d21326f3b60874fd72bbe509c06dbe5b729a32
Enabling pointer tagging in the userspace ABI for RISC-V kernels differs
to that of Aarch64. It requires requesting a particular number of masked
pointer bits, an error is returned if the platform could not accommodate
the request:
https://docs.kernel.org/arch/riscv/uabi.html#pointer-masking

While experimenting with enabling RISC-V HWASAN on GCC I was hitting the
error

> HWAddressSanitizer failed to enable tagged address syscall ABI

when attempting to run instrumented programs in the spike simulator
running kernel release 6.18. This patch successfully allows the tagged
address syscall ABI to be enabled by the support runtime.
2026-04-28 10:19:13 -06:00
.forgejo top-level: Rename forgejo sanity checks 2026-02-27 15:08:12 +01:00
.github
c++tools Update copyright years. 2026-01-02 09:56:11 +01:00
config Daily bump. 2026-04-15 08:16:45 +00:00
contrib Daily bump. 2026-04-23 00:16:32 +00:00
fixincludes Daily bump. 2026-02-16 00:16:25 +00:00
gcc [RISC-V][PR tree-optimization/94892] Improve equality test of sign bit splat against zero 2026-04-28 10:08:37 -06:00
gnattools Daily bump. 2026-01-10 00:16:49 +00:00
gotools
include Daily bump. 2026-02-06 00:16:39 +00:00
INSTALL
libada Update copyright years. 2026-01-02 09:56:11 +01:00
libatomic Daily bump. 2026-02-22 00:16:27 +00:00
libbacktrace Update copyright years. 2026-01-02 10:47:06 +01:00
libcc1 Daily bump. 2026-01-16 00:16:30 +00:00
libcody Update Copyright year in ChangeLog files 2026-01-01 18:58:28 +01:00
libcpp Daily bump. 2026-04-22 00:16:28 +00:00
libdecnumber Daily bump. 2026-01-10 00:16:49 +00:00
libffi Daily bump. 2026-01-30 00:16:31 +00:00
libga68 Daily bump. 2026-03-22 00:16:21 +00:00
libgcc Daily bump. 2026-04-24 00:16:27 +00:00
libgcobol Daily bump. 2026-04-03 00:16:27 +00:00
libgfortran Daily bump. 2026-04-18 00:16:31 +00:00
libgm2 Daily bump. 2026-04-22 00:16:28 +00:00
libgo libgo: use -Wc,-shared-libgcc on Solaris 2025-12-19 15:23:49 -08:00
libgomp libgomp.fortran/map-subarray-6.f90: Fix and robustify 2026-04-28 14:15:21 +02:00
libgrust Update copyright years. 2026-01-02 09:56:11 +01:00
libiberty Daily bump. 2026-03-06 00:16:27 +00:00
libitm Daily bump. 2026-02-13 00:16:32 +00:00
libobjc Update copyright years. 2026-01-02 09:56:11 +01:00
libphobos Daily bump. 2026-04-22 00:16:28 +00:00
libquadmath Daily bump. 2026-01-02 00:16:23 +00:00
libsanitizer [HWASAN] [RISC-V] Update EnableTaggingAbi for RISC-V linux. (#176616) 2026-04-28 10:19:13 -06:00
libssp Update copyright years. 2026-01-02 09:56:11 +01:00
libstdc++-v3 libstdc++: Make pointer_traits::pointer_to constexpr for main template. 2026-04-28 16:08:36 +02:00
libvtv Update copyright years. 2026-01-02 09:56:11 +01:00
lto-plugin Update copyright years. 2026-01-02 09:56:11 +01:00
maintainer-scripts Daily bump. 2026-04-23 00:16:32 +00:00
zlib Daily bump. 2025-12-30 00:16:33 +00:00
.b4-config
.dir-locals.el
.editorconfig editorconfig: Add explicit tab_width when indent_size != 8 2025-10-28 15:06:51 +00:00
.gitattributes
.gitignore Rust: Move 'libformat_parser' build into the GCC build directory 2025-08-05 16:36:43 +02:00
ABOUT-NLS
ar-lib
ChangeLog Daily bump. 2026-04-02 00:16:31 +00:00
ChangeLog.jit
ChangeLog.tree-ssa
compile
config-ml.in toplevel: Unbreak Ada build [PR123490] 2026-01-10 11:36:25 +01:00
config.guess
config.rpath
config.sub
configure AMDGCN: Disable subdirectory configuration for unsupported GAS and LD 2026-02-18 17:32:33 +00:00
configure.ac AMDGCN: Disable subdirectory configuration for unsupported GAS and LD 2026-02-18 17:32:33 +00:00
COPYING
COPYING.LIB
COPYING.RUNTIME
COPYING3
COPYING3.LIB
depcomp
install-sh
libtool-ldflags
libtool.m4 build: Cherry-pick libtool.m4 support for GNU ld *_sol2 emulations 2025-12-29 12:09:35 +01:00
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
MAINTAINERS MAINTAINERS: Add myself to write after approval and DCO 2026-04-28 17:00:09 +08:00
Makefile.def a68: support for Algol 68 code in libga68 and initial transput 2025-12-30 22:45:51 +01:00
Makefile.in Makefile.tpl: Implement per-stage GDCFLAGS [PR116975] 2026-02-05 14:25:08 +01:00
Makefile.tpl Makefile.tpl: Implement per-stage GDCFLAGS [PR116975] 2026-02-05 14:25:08 +01:00
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README
SECURITY.txt a68: top-level misc files 2025-11-30 01:52:24 +01:00
symlink-tree bugzilla: remove gcc-bugs@ mailing list address 2026-01-09 11:10:38 +01:00
test-driver
ylwrap

This directory contains the GNU Compiler Collection (GCC).

The GNU Compiler Collection is free software.  See the files whose
names start with COPYING for copying permission.  The manuals, and
some of the runtime libraries, are under different terms; see the
individual source files for details.

The directory INSTALL contains copies of the installation information
as HTML and plain text.  The source of this information is
gcc/doc/install.texi.  The installation information includes details
of what is included in the GCC sources and what files GCC installs.

See the file gcc/doc/gcc.texi (together with other files that it
includes) for usage and porting information.  An online readable
version of the manual is in the files gcc/doc/gcc.info*.

See http://gcc.gnu.org/bugs/ for how to report bugs usefully.

Copyright years on GCC source files may be listed using range
notation, e.g., 1987-2012, indicating that every year in the range,
inclusive, is a copyrightable year that could otherwise be listed
individually.