Add mkdtemps(3), like mkdtemp(3) but with a suffix.
OK deraadt@ tb@

Make our mktemp(3) callback-driven and split into multiple files.
Previously, calling any of the mktemp(3) family would pull in
lstat(2), open(2) and mkdir(2). Now, only the necessary system
calls will be reachable from the binary. OK deraadt@ guenther@

Remove malloc interposition, a workaround that was once needed for emacs
ok guenther@

Add PROTO_NORMAL() declarations for the remaining syscalls, to avoid
future, inadvertant PLT entries. Move the __getcwd and __realpath
declarations to hidden/{stdlib,unistd}.h to consolidate and remove
duplication.

ok tb@ otto@ deraadt@

Inroduce malloc_conceal() and calloc_conceal(). Similar to their
counterparts but return memory in pages marked MAP_CONCEAL and on
free() freezero() is actually called.

Introducing malloc_usable_size() was a mistake. While some other
libs have it, it is a function that is considered harmful, so:

Delete malloc_usable_size(). It is a function that blurs the line
between malloc managed memory and application managed memory and
exposes some of the internal workings of malloc. If an application
relies on that, it is likely to break using another implementation
of malloc. If you want usable size x, just allocate x bytes. ok
deraadt@ and other devs

Implement malloc_usable_size(); ok millert@ deraadt@ and jmc@ for the man page

Implement C11's aligned_alloc(3). ok guenther@

New POSIX xlocale implementation written from scratch.
Complete in the sense that all POSIX *locale(3) and *_l(3) functions
are included, but in OpenBSD, we of course only really care about
LC_CTYPE and we only support ASCII and UTF-8.

With important help from kettenis@, guenther@, and jca@.
Repeated testing in ports bulk builds by naddy@.
Additional testing by jca@, sebastia@, dcoppa@, and others.
OK kettenis@ dcoppa@, and guenther@ on an earlier version.
Riding guenther@'s libc/librthread major bump.

Use David Musser's introsort algorithm to fall back to heapsort(3)
when the recursion depth reaches 2*lg(n + 1). This avoids quicksort's
quadratic behavior for pathological input without appreciably
changing the average run time.

Introducing freezero(3) a version of free that guarantees the process
no longer has access to the content of a memmory object. It does
this by either clearing (if the object memory remains cached) or
by calling munmap(2). ok millert@, deraadt@, guenther@

Introducing recallocarray(3), a blend of calloc(3) and reallocarray(3)
with the added feature that released memory is cleared. Much input from various
developers. ok deraadt@ tom@

Reduce qabs() and qdiv() to aliases of llabs() and lldiv().
Merge the manual pages and call them deprecated there.

ok and manpage tweak jmc@, ok natano@

environ and __progname are not declared in a public header; declare them
in libc's hidden/stdlib.h instead of in each .c file that needs one

ok deraadt@ gsoares@ mpi@

libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork()
stubs for the executable from crtbegin.o into libc, which lets them be
excluded from static links that don't use them.
For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini
sections for libc aren't called at the right times anyway, so it's good that
they're unused. libc.so just needs __guard_local and the .note.openbsd.ident
section, so add them to stack_protector.c for now (this will be improved)

"good time" deraadt@

Hide __atexit and __atexit_register_cleanup()
Wrap __cxa_{atexit,finalize}() so the call from exit() goes direct
Switch regress/lib/libc/atexit/ to be built with -static so that it can
still access __atexit*

ok millert@ jca@

Don't wrap initialized variables: binutils appears to be mishandling them
on arm and m88k

problems with optind observed by jsg@

For now, permit overriding of the malloc family, to make emacs happy

Overshot w/PROTO_DEPRECATED: seed48_deterministic() is used internally

Wrap <stdlib.h> so that calls go direct and the symbols not in the
C standard are all weak.
Apply __{BEGIN,END}_HIDDEN_DECLS to gdtoa{,imp}.h, hiding the
arch-specific __strtorx, __ULtox_D2A, __strtorQ, __ULtoQ_D2A symbols.

Make our mktemp(3) callback-driven and split into multiple files.
Previously, calling any of the mktemp(3) family would pull in
lstat(2), open(2) and mkdir(2). Now, only the necessary system
calls will be reachable from the binary. OK deraadt@ guenther@

Remove malloc interposition, a workaround that was once needed for emacs
ok guenther@

Add PROTO_NORMAL() declarations for the remaining syscalls, to avoid
future, inadvertant PLT entries. Move the __getcwd and __realpath
declarations to hidden/{stdlib,unistd}.h to consolidate and remove
duplication.

ok tb@ otto@ deraadt@

Inroduce malloc_conceal() and calloc_conceal(). Similar to their
counterparts but return memory in pages marked MAP_CONCEAL and on
free() freezero() is actually called.

Introducing malloc_usable_size() was a mistake. While some other
libs have it, it is a function that is considered harmful, so:

Delete malloc_usable_size(). It is a function that blurs the line
between malloc managed memory and application managed memory and
exposes some of the internal workings of malloc. If an application
relies on that, it is likely to break using another implementation
of malloc. If you want usable size x, just allocate x bytes. ok
deraadt@ and other devs

Implement malloc_usable_size(); ok millert@ deraadt@ and jmc@ for the man page

Implement C11's aligned_alloc(3). ok guenther@

New POSIX xlocale implementation written from scratch.
Complete in the sense that all POSIX *locale(3) and *_l(3) functions
are included, but in OpenBSD, we of course only really care about
LC_CTYPE and we only support ASCII and UTF-8.

With important help from kettenis@, guenther@, and jca@.
Repeated testing in ports bulk builds by naddy@.
Additional testing by jca@, sebastia@, dcoppa@, and others.
OK kettenis@ dcoppa@, and guenther@ on an earlier version.
Riding guenther@'s libc/librthread major bump.

Use David Musser's introsort algorithm to fall back to heapsort(3)
when the recursion depth reaches 2*lg(n + 1). This avoids quicksort's
quadratic behavior for pathological input without appreciably
changing the average run time.

Introducing freezero(3) a version of free that guarantees the process
no longer has access to the content of a memmory object. It does
this by either clearing (if the object memory remains cached) or
by calling munmap(2). ok millert@, deraadt@, guenther@

Introducing recallocarray(3), a blend of calloc(3) and reallocarray(3)
with the added feature that released memory is cleared. Much input from various
developers. ok deraadt@ tom@

Reduce qabs() and qdiv() to aliases of llabs() and lldiv().
Merge the manual pages and call them deprecated there.

ok and manpage tweak jmc@, ok natano@

environ and __progname are not declared in a public header; declare them
in libc's hidden/stdlib.h instead of in each .c file that needs one

ok deraadt@ gsoares@ mpi@

libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork()
stubs for the executable from crtbegin.o into libc, which lets them be
excluded from static links that don't use them.
For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini
sections for libc aren't called at the right times anyway, so it's good that
they're unused. libc.so just needs __guard_local and the .note.openbsd.ident
section, so add them to stack_protector.c for now (this will be improved)

"good time" deraadt@

Hide __atexit and __atexit_register_cleanup()
Wrap __cxa_{atexit,finalize}() so the call from exit() goes direct
Switch regress/lib/libc/atexit/ to be built with -static so that it can
still access __atexit*

ok millert@ jca@

Don't wrap initialized variables: binutils appears to be mishandling them
on arm and m88k

problems with optind observed by jsg@

For now, permit overriding of the malloc family, to make emacs happy

Overshot w/PROTO_DEPRECATED: seed48_deterministic() is used internally

Wrap <stdlib.h> so that calls go direct and the symbols not in the
C standard are all weak.
Apply __{BEGIN,END}_HIDDEN_DECLS to gdtoa{,imp}.h, hiding the
arch-specific __strtorx, __ULtox_D2A, __strtorQ, __ULtoQ_D2A symbols.

Remove malloc interposition, a workaround that was once needed for emacs
ok guenther@

Add PROTO_NORMAL() declarations for the remaining syscalls, to avoid
future, inadvertant PLT entries. Move the __getcwd and __realpath
declarations to hidden/{stdlib,unistd}.h to consolidate and remove
duplication.

ok tb@ otto@ deraadt@

Inroduce malloc_conceal() and calloc_conceal(). Similar to their
counterparts but return memory in pages marked MAP_CONCEAL and on
free() freezero() is actually called.

Introducing malloc_usable_size() was a mistake. While some other
libs have it, it is a function that is considered harmful, so:

Delete malloc_usable_size(). It is a function that blurs the line
between malloc managed memory and application managed memory and
exposes some of the internal workings of malloc. If an application
relies on that, it is likely to break using another implementation
of malloc. If you want usable size x, just allocate x bytes. ok
deraadt@ and other devs

Implement malloc_usable_size(); ok millert@ deraadt@ and jmc@ for the man page

Implement C11's aligned_alloc(3). ok guenther@

New POSIX xlocale implementation written from scratch.
Complete in the sense that all POSIX *locale(3) and *_l(3) functions
are included, but in OpenBSD, we of course only really care about
LC_CTYPE and we only support ASCII and UTF-8.

With important help from kettenis@, guenther@, and jca@.
Repeated testing in ports bulk builds by naddy@.
Additional testing by jca@, sebastia@, dcoppa@, and others.
OK kettenis@ dcoppa@, and guenther@ on an earlier version.
Riding guenther@'s libc/librthread major bump.

Use David Musser's introsort algorithm to fall back to heapsort(3)
when the recursion depth reaches 2*lg(n + 1). This avoids quicksort's
quadratic behavior for pathological input without appreciably
changing the average run time.

Introducing freezero(3) a version of free that guarantees the process
no longer has access to the content of a memmory object. It does
this by either clearing (if the object memory remains cached) or
by calling munmap(2). ok millert@, deraadt@, guenther@

Introducing recallocarray(3), a blend of calloc(3) and reallocarray(3)
with the added feature that released memory is cleared. Much input from various
developers. ok deraadt@ tom@

Reduce qabs() and qdiv() to aliases of llabs() and lldiv().
Merge the manual pages and call them deprecated there.

ok and manpage tweak jmc@, ok natano@

environ and __progname are not declared in a public header; declare them
in libc's hidden/stdlib.h instead of in each .c file that needs one

ok deraadt@ gsoares@ mpi@

libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork()
stubs for the executable from crtbegin.o into libc, which lets them be
excluded from static links that don't use them.
For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini
sections for libc aren't called at the right times anyway, so it's good that
they're unused. libc.so just needs __guard_local and the .note.openbsd.ident
section, so add them to stack_protector.c for now (this will be improved)

"good time" deraadt@

Hide __atexit and __atexit_register_cleanup()
Wrap __cxa_{atexit,finalize}() so the call from exit() goes direct
Switch regress/lib/libc/atexit/ to be built with -static so that it can
still access __atexit*

ok millert@ jca@

Don't wrap initialized variables: binutils appears to be mishandling them
on arm and m88k

problems with optind observed by jsg@

For now, permit overriding of the malloc family, to make emacs happy

Overshot w/PROTO_DEPRECATED: seed48_deterministic() is used internally

Wrap <stdlib.h> so that calls go direct and the symbols not in the
C standard are all weak.
Apply __{BEGIN,END}_HIDDEN_DECLS to gdtoa{,imp}.h, hiding the
arch-specific __strtorx, __ULtox_D2A, __strtorQ, __ULtoQ_D2A symbols.

Inroduce malloc_conceal() and calloc_conceal(). Similar to their
counterparts but return memory in pages marked MAP_CONCEAL and on
free() freezero() is actually called.

Introducing malloc_usable_size() was a mistake. While some other
libs have it, it is a function that is considered harmful, so:

Delete malloc_usable_size(). It is a function that blurs the line
between malloc managed memory and application managed memory and
exposes some of the internal workings of malloc. If an application
relies on that, it is likely to break using another implementation
of malloc. If you want usable size x, just allocate x bytes. ok
deraadt@ and other devs

Implement malloc_usable_size(); ok millert@ deraadt@ and jmc@ for the man page

Implement C11's aligned_alloc(3). ok guenther@

New POSIX xlocale implementation written from scratch.
Complete in the sense that all POSIX *locale(3) and *_l(3) functions
are included, but in OpenBSD, we of course only really care about
LC_CTYPE and we only support ASCII and UTF-8.

With important help from kettenis@, guenther@, and jca@.
Repeated testing in ports bulk builds by naddy@.
Additional testing by jca@, sebastia@, dcoppa@, and others.
OK kettenis@ dcoppa@, and guenther@ on an earlier version.
Riding guenther@'s libc/librthread major bump.

Use David Musser's introsort algorithm to fall back to heapsort(3)
when the recursion depth reaches 2*lg(n + 1). This avoids quicksort's
quadratic behavior for pathological input without appreciably
changing the average run time.

Introducing freezero(3) a version of free that guarantees the process
no longer has access to the content of a memmory object. It does
this by either clearing (if the object memory remains cached) or
by calling munmap(2). ok millert@, deraadt@, guenther@

Introducing recallocarray(3), a blend of calloc(3) and reallocarray(3)
with the added feature that released memory is cleared. Much input from various
developers. ok deraadt@ tom@

Reduce qabs() and qdiv() to aliases of llabs() and lldiv().
Merge the manual pages and call them deprecated there.

ok and manpage tweak jmc@, ok natano@

environ and __progname are not declared in a public header; declare them
in libc's hidden/stdlib.h instead of in each .c file that needs one

ok deraadt@ gsoares@ mpi@

libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork()
stubs for the executable from crtbegin.o into libc, which lets them be
excluded from static links that don't use them.
For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini
sections for libc aren't called at the right times anyway, so it's good that
they're unused. libc.so just needs __guard_local and the .note.openbsd.ident
section, so add them to stack_protector.c for now (this will be improved)

"good time" deraadt@

Hide __atexit and __atexit_register_cleanup()
Wrap __cxa_{atexit,finalize}() so the call from exit() goes direct
Switch regress/lib/libc/atexit/ to be built with -static so that it can
still access __atexit*

ok millert@ jca@

Don't wrap initialized variables: binutils appears to be mishandling them
on arm and m88k

problems with optind observed by jsg@

For now, permit overriding of the malloc family, to make emacs happy

Overshot w/PROTO_DEPRECATED: seed48_deterministic() is used internally

Wrap <stdlib.h> so that calls go direct and the symbols not in the
C standard are all weak.
Apply __{BEGIN,END}_HIDDEN_DECLS to gdtoa{,imp}.h, hiding the
arch-specific __strtorx, __ULtox_D2A, __strtorQ, __ULtoQ_D2A symbols.

Introducing malloc_usable_size() was a mistake. While some other
libs have it, it is a function that is considered harmful, so:

Delete malloc_usable_size(). It is a function that blurs the line
between malloc managed memory and application managed memory and
exposes some of the internal workings of malloc. If an application
relies on that, it is likely to break using another implementation
of malloc. If you want usable size x, just allocate x bytes. ok
deraadt@ and other devs

Implement malloc_usable_size(); ok millert@ deraadt@ and jmc@ for the man page

Implement C11's aligned_alloc(3). ok guenther@

New POSIX xlocale implementation written from scratch.
Complete in the sense that all POSIX *locale(3) and *_l(3) functions
are included, but in OpenBSD, we of course only really care about
LC_CTYPE and we only support ASCII and UTF-8.

With important help from kettenis@, guenther@, and jca@.
Repeated testing in ports bulk builds by naddy@.
Additional testing by jca@, sebastia@, dcoppa@, and others.
OK kettenis@ dcoppa@, and guenther@ on an earlier version.
Riding guenther@'s libc/librthread major bump.

Use David Musser's introsort algorithm to fall back to heapsort(3)
when the recursion depth reaches 2*lg(n + 1). This avoids quicksort's
quadratic behavior for pathological input without appreciably
changing the average run time.

Introducing freezero(3) a version of free that guarantees the process
no longer has access to the content of a memmory object. It does
this by either clearing (if the object memory remains cached) or
by calling munmap(2). ok millert@, deraadt@, guenther@

Introducing recallocarray(3), a blend of calloc(3) and reallocarray(3)
with the added feature that released memory is cleared. Much input from various
developers. ok deraadt@ tom@

Reduce qabs() and qdiv() to aliases of llabs() and lldiv().
Merge the manual pages and call them deprecated there.

ok and manpage tweak jmc@, ok natano@

environ and __progname are not declared in a public header; declare them
in libc's hidden/stdlib.h instead of in each .c file that needs one

ok deraadt@ gsoares@ mpi@

libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork()
stubs for the executable from crtbegin.o into libc, which lets them be
excluded from static links that don't use them.
For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini
sections for libc aren't called at the right times anyway, so it's good that
they're unused. libc.so just needs __guard_local and the .note.openbsd.ident
section, so add them to stack_protector.c for now (this will be improved)

"good time" deraadt@

Hide __atexit and __atexit_register_cleanup()
Wrap __cxa_{atexit,finalize}() so the call from exit() goes direct
Switch regress/lib/libc/atexit/ to be built with -static so that it can
still access __atexit*

ok millert@ jca@

Don't wrap initialized variables: binutils appears to be mishandling them
on arm and m88k

problems with optind observed by jsg@

For now, permit overriding of the malloc family, to make emacs happy

Overshot w/PROTO_DEPRECATED: seed48_deterministic() is used internally

Wrap <stdlib.h> so that calls go direct and the symbols not in the
C standard are all weak.
Apply __{BEGIN,END}_HIDDEN_DECLS to gdtoa{,imp}.h, hiding the
arch-specific __strtorx, __ULtox_D2A, __strtorQ, __ULtoQ_D2A symbols.

Implement malloc_usable_size(); ok millert@ deraadt@ and jmc@ for the man page

Implement C11's aligned_alloc(3). ok guenther@

New POSIX xlocale implementation written from scratch.
Complete in the sense that all POSIX *locale(3) and *_l(3) functions
are included, but in OpenBSD, we of course only really care about
LC_CTYPE and we only support ASCII and UTF-8.

With important help from kettenis@, guenther@, and jca@.
Repeated testing in ports bulk builds by naddy@.
Additional testing by jca@, sebastia@, dcoppa@, and others.
OK kettenis@ dcoppa@, and guenther@ on an earlier version.
Riding guenther@'s libc/librthread major bump.

Use David Musser's introsort algorithm to fall back to heapsort(3)
when the recursion depth reaches 2*lg(n + 1). This avoids quicksort's
quadratic behavior for pathological input without appreciably
changing the average run time.

Introducing freezero(3) a version of free that guarantees the process
no longer has access to the content of a memmory object. It does
this by either clearing (if the object memory remains cached) or
by calling munmap(2). ok millert@, deraadt@, guenther@

Introducing recallocarray(3), a blend of calloc(3) and reallocarray(3)
with the added feature that released memory is cleared. Much input from various
developers. ok deraadt@ tom@

Reduce qabs() and qdiv() to aliases of llabs() and lldiv().
Merge the manual pages and call them deprecated there.

ok and manpage tweak jmc@, ok natano@

environ and __progname are not declared in a public header; declare them
in libc's hidden/stdlib.h instead of in each .c file that needs one

ok deraadt@ gsoares@ mpi@

libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork()
stubs for the executable from crtbegin.o into libc, which lets them be
excluded from static links that don't use them.
For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini
sections for libc aren't called at the right times anyway, so it's good that
they're unused. libc.so just needs __guard_local and the .note.openbsd.ident
section, so add them to stack_protector.c for now (this will be improved)

"good time" deraadt@

Hide __atexit and __atexit_register_cleanup()
Wrap __cxa_{atexit,finalize}() so the call from exit() goes direct
Switch regress/lib/libc/atexit/ to be built with -static so that it can
still access __atexit*

ok millert@ jca@

Don't wrap initialized variables: binutils appears to be mishandling them
on arm and m88k

problems with optind observed by jsg@

For now, permit overriding of the malloc family, to make emacs happy

Overshot w/PROTO_DEPRECATED: seed48_deterministic() is used internally

Wrap <stdlib.h> so that calls go direct and the symbols not in the
C standard are all weak.
Apply __{BEGIN,END}_HIDDEN_DECLS to gdtoa{,imp}.h, hiding the
arch-specific __strtorx, __ULtox_D2A, __strtorQ, __ULtoQ_D2A symbols.

Implement C11's aligned_alloc(3). ok guenther@

New POSIX xlocale implementation written from scratch.
Complete in the sense that all POSIX *locale(3) and *_l(3) functions
are included, but in OpenBSD, we of course only really care about
LC_CTYPE and we only support ASCII and UTF-8.

With important help from kettenis@, guenther@, and jca@.
Repeated testing in ports bulk builds by naddy@.
Additional testing by jca@, sebastia@, dcoppa@, and others.
OK kettenis@ dcoppa@, and guenther@ on an earlier version.
Riding guenther@'s libc/librthread major bump.

Use David Musser's introsort algorithm to fall back to heapsort(3)
when the recursion depth reaches 2*lg(n + 1). This avoids quicksort's
quadratic behavior for pathological input without appreciably
changing the average run time.

Introducing freezero(3) a version of free that guarantees the process
no longer has access to the content of a memmory object. It does
this by either clearing (if the object memory remains cached) or
by calling munmap(2). ok millert@, deraadt@, guenther@

Introducing recallocarray(3), a blend of calloc(3) and reallocarray(3)
with the added feature that released memory is cleared. Much input from various
developers. ok deraadt@ tom@

Reduce qabs() and qdiv() to aliases of llabs() and lldiv().
Merge the manual pages and call them deprecated there.

ok and manpage tweak jmc@, ok natano@

environ and __progname are not declared in a public header; declare them
in libc's hidden/stdlib.h instead of in each .c file that needs one

ok deraadt@ gsoares@ mpi@

libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork()
stubs for the executable from crtbegin.o into libc, which lets them be
excluded from static links that don't use them.
For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini
sections for libc aren't called at the right times anyway, so it's good that
they're unused. libc.so just needs __guard_local and the .note.openbsd.ident
section, so add them to stack_protector.c for now (this will be improved)

"good time" deraadt@

Hide __atexit and __atexit_register_cleanup()
Wrap __cxa_{atexit,finalize}() so the call from exit() goes direct
Switch regress/lib/libc/atexit/ to be built with -static so that it can
still access __atexit*

ok millert@ jca@

Don't wrap initialized variables: binutils appears to be mishandling them
on arm and m88k

problems with optind observed by jsg@

For now, permit overriding of the malloc family, to make emacs happy

Overshot w/PROTO_DEPRECATED: seed48_deterministic() is used internally

Wrap <stdlib.h> so that calls go direct and the symbols not in the
C standard are all weak.
Apply __{BEGIN,END}_HIDDEN_DECLS to gdtoa{,imp}.h, hiding the
arch-specific __strtorx, __ULtox_D2A, __strtorQ, __ULtoQ_D2A symbols.

New POSIX xlocale implementation written from scratch.
Complete in the sense that all POSIX *locale(3) and *_l(3) functions
are included, but in OpenBSD, we of course only really care about
LC_CTYPE and we only support ASCII and UTF-8.

With important help from kettenis@, guenther@, and jca@.
Repeated testing in ports bulk builds by naddy@.
Additional testing by jca@, sebastia@, dcoppa@, and others.
OK kettenis@ dcoppa@, and guenther@ on an earlier version.
Riding guenther@'s libc/librthread major bump.

Use David Musser's introsort algorithm to fall back to heapsort(3)
when the recursion depth reaches 2*lg(n + 1). This avoids quicksort's
quadratic behavior for pathological input without appreciably
changing the average run time.

Introducing freezero(3) a version of free that guarantees the process
no longer has access to the content of a memmory object. It does
this by either clearing (if the object memory remains cached) or
by calling munmap(2). ok millert@, deraadt@, guenther@

Introducing recallocarray(3), a blend of calloc(3) and reallocarray(3)
with the added feature that released memory is cleared. Much input from various
developers. ok deraadt@ tom@

Reduce qabs() and qdiv() to aliases of llabs() and lldiv().
Merge the manual pages and call them deprecated there.

ok and manpage tweak jmc@, ok natano@

environ and __progname are not declared in a public header; declare them
in libc's hidden/stdlib.h instead of in each .c file that needs one

ok deraadt@ gsoares@ mpi@

libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork()
stubs for the executable from crtbegin.o into libc, which lets them be
excluded from static links that don't use them.
For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini
sections for libc aren't called at the right times anyway, so it's good that
they're unused. libc.so just needs __guard_local and the .note.openbsd.ident
section, so add them to stack_protector.c for now (this will be improved)

"good time" deraadt@

Hide __atexit and __atexit_register_cleanup()
Wrap __cxa_{atexit,finalize}() so the call from exit() goes direct
Switch regress/lib/libc/atexit/ to be built with -static so that it can
still access __atexit*

ok millert@ jca@

Don't wrap initialized variables: binutils appears to be mishandling them
on arm and m88k

problems with optind observed by jsg@

For now, permit overriding of the malloc family, to make emacs happy

Overshot w/PROTO_DEPRECATED: seed48_deterministic() is used internally

Wrap <stdlib.h> so that calls go direct and the symbols not in the
C standard are all weak.
Apply __{BEGIN,END}_HIDDEN_DECLS to gdtoa{,imp}.h, hiding the
arch-specific __strtorx, __ULtox_D2A, __strtorQ, __ULtoQ_D2A symbols.