sys/stdint.h: add C23 _WIDTH macros

The platform-dependent macros are added to the various
_stdint.h headers, those that are always the same are
added directly to _stdint.h.

We may want to move the

sys/stdint.h: add C23 _WIDTH macros

The platform-dependent macros are added to the various
_stdint.h headers, those that are always the same are
added directly to _stdint.h.

We may want to move the definitions for WCHAR_* and
WINT_* out of the platform header files as those are
always the same.

Approved by: markj (mentor)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D53830

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

arm64 lib32: prepare arm64 headers to redirect to arm

In order to compile lib32 libraries and other 32-bit code on arm64,
<machine/foo.h> needs to be redirected to an arm header rather
than arm64 wh

arm64 lib32: prepare arm64 headers to redirect to arm

In order to compile lib32 libraries and other 32-bit code on arm64,
<machine/foo.h> needs to be redirected to an arm header rather
than arm64 when building with -m32. Ifdef the arm64 headers that
are installed in /usr/include/machine and used by user-level software
(including references from /usr/include/*.h) so that if __arm__ is
defined when including the arm64 version, <arm/foo.h> is included
rather than using the rest of the file's contents. Some arm headers
had no arm64 equivalent; headers were added just to do the redirection.
These files use #error if __arm__ is not defined to guard against
confusion. Also add an include/arm Makefile, and modify Makefiles
as needed to install everything, including the arm files in
/usr/include/arm. fenv.h comes from lib/msun/arm/fenv.h.

The new arm64 headers are:
acle-compat.h
cpuinfo.h
sysreg.h

Reviewed by: jrtc27, imp
Differential Revision: https://reviews.freebsd.org/D40944

show more ...

arm64: Fix sig_atomic_t limit definitions

sig_atomic_t is defined as a long and thus is 64-bit on arm64. For some
reason its limit was incorrectly specified as a 32-bit number. This had
the unfort

arm64: Fix sig_atomic_t limit definitions

sig_atomic_t is defined as a long and thus is 64-bit on arm64. For some
reason its limit was incorrectly specified as a 32-bit number. This had
the unfortunate side effect of causing gnulib to override most of the
definitions in stdint.h. On CheriBSD this breaks all software that uses
gnulib in annoying and hard to debug ways.

Technically updating the limits might be an ABI change, but these
defines are largely unused (the only use in tree is in the libc++ test
suite where it's use an assertion that will fail due to this bug).
Further, since the underlying type remains the same, we're just
increasing the range of values a paranoid program might use.

Reviewed by: andrew, emaste
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D39193

show more ...

sys/stdint.h: add C23 _WIDTH macros

The platform-dependent macros are added to the various
_stdint.h headers, those that are always the same are
added directly to _stdint.h.

We may want to move the

sys/stdint.h: add C23 _WIDTH macros

The platform-dependent macros are added to the various
_stdint.h headers, those that are always the same are
added directly to _stdint.h.

We may want to move the definitions for WCHAR_* and
WINT_* out of the platform header files as those are
always the same.

Approved by: markj (mentor)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D53830

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

arm64 lib32: prepare arm64 headers to redirect to arm

In order to compile lib32 libraries and other 32-bit code on arm64,
<machine/foo.h> needs to be redirected to an arm header rather
than arm64 wh

arm64 lib32: prepare arm64 headers to redirect to arm

In order to compile lib32 libraries and other 32-bit code on arm64,
<machine/foo.h> needs to be redirected to an arm header rather
than arm64 when building with -m32. Ifdef the arm64 headers that
are installed in /usr/include/machine and used by user-level software
(including references from /usr/include/*.h) so that if __arm__ is
defined when including the arm64 version, <arm/foo.h> is included
rather than using the rest of the file's contents. Some arm headers
had no arm64 equivalent; headers were added just to do the redirection.
These files use #error if __arm__ is not defined to guard against
confusion. Also add an include/arm Makefile, and modify Makefiles
as needed to install everything, including the arm files in
/usr/include/arm. fenv.h comes from lib/msun/arm/fenv.h.

The new arm64 headers are:
acle-compat.h
cpuinfo.h
sysreg.h

Reviewed by: jrtc27, imp
Differential Revision: https://reviews.freebsd.org/D40944

show more ...

arm64: Fix sig_atomic_t limit definitions

sig_atomic_t is defined as a long and thus is 64-bit on arm64. For some
reason its limit was incorrectly specified as a 32-bit number. This had
the unfort

arm64: Fix sig_atomic_t limit definitions

sig_atomic_t is defined as a long and thus is 64-bit on arm64. For some
reason its limit was incorrectly specified as a 32-bit number. This had
the unfortunate side effect of causing gnulib to override most of the
definitions in stdint.h. On CheriBSD this breaks all software that uses
gnulib in annoying and hard to debug ways.

Technically updating the limits might be an ABI change, but these
defines are largely unused (the only use in tree is in the libc++ test
suite where it's use an assertion that will fail due to this bug).
Further, since the underlying type remains the same, we're just
increasing the range of values a paranoid program might use.

Reviewed by: andrew, emaste
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D39193

show more ...

Catch up with HEAD (r280229-r284686).

Merge sync of head

Merge from HEAD

MFH: r278968-r280640

Sponsored by: The FreeBSD Foundation

Add the start of the arm64 machine headers. This is the subset needed to
start getting userland libraries building.

Reviewed by: imp
Sponsored by: The FreeBSD Foundation

Catch up with HEAD (r280229-r284686).

Merge sync of head

Merge from HEAD

MFH: r278968-r280640

Sponsored by: The FreeBSD Foundation

Add the start of the arm64 machine headers. This is the subset needed to
start getting userland libraries building.

Reviewed by: imp
Sponsored by: The FreeBSD Foundation

sys/stdint.h: add C23 _WIDTH macros

The platform-dependent macros are added to the various
_stdint.h headers, those that are always the same are
added directly to _stdint.h.

We may want to move the

sys/stdint.h: add C23 _WIDTH macros

The platform-dependent macros are added to the various
_stdint.h headers, those that are always the same are
added directly to _stdint.h.

We may want to move the definitions for WCHAR_* and
WINT_* out of the platform header files as those are
always the same.

Approved by: markj (mentor)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D53830

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

arm64 lib32: prepare arm64 headers to redirect to arm

In order to compile lib32 libraries and other 32-bit code on arm64,
<machine/foo.h> needs to be redirected to an arm header rather
than arm64 wh

arm64 lib32: prepare arm64 headers to redirect to arm

In order to compile lib32 libraries and other 32-bit code on arm64,
<machine/foo.h> needs to be redirected to an arm header rather
than arm64 when building with -m32. Ifdef the arm64 headers that
are installed in /usr/include/machine and used by user-level software
(including references from /usr/include/*.h) so that if __arm__ is
defined when including the arm64 version, <arm/foo.h> is included
rather than using the rest of the file's contents. Some arm headers
had no arm64 equivalent; headers were added just to do the redirection.
These files use #error if __arm__ is not defined to guard against
confusion. Also add an include/arm Makefile, and modify Makefiles
as needed to install everything, including the arm files in
/usr/include/arm. fenv.h comes from lib/msun/arm/fenv.h.

The new arm64 headers are:
acle-compat.h
cpuinfo.h
sysreg.h

Reviewed by: jrtc27, imp
Differential Revision: https://reviews.freebsd.org/D40944

show more ...

arm64: Fix sig_atomic_t limit definitions

sig_atomic_t is defined as a long and thus is 64-bit on arm64. For some
reason its limit was incorrectly specified as a 32-bit number. This had
the unfort

arm64: Fix sig_atomic_t limit definitions

sig_atomic_t is defined as a long and thus is 64-bit on arm64. For some
reason its limit was incorrectly specified as a 32-bit number. This had
the unfortunate side effect of causing gnulib to override most of the
definitions in stdint.h. On CheriBSD this breaks all software that uses
gnulib in annoying and hard to debug ways.

Technically updating the limits might be an ABI change, but these
defines are largely unused (the only use in tree is in the libc++ test
suite where it's use an assertion that will fail due to this bug).
Further, since the underlying type remains the same, we're just
increasing the range of values a paranoid program might use.

Reviewed by: andrew, emaste
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D39193

show more ...

Catch up with HEAD (r280229-r284686).

Merge sync of head

Merge from HEAD