Switch arch/sh3/sys to the new compat code layout.

branches: 1.5.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

Added missing _C_LABEL to errno reference.

branches: 1.1.6;
libc for SH3.
TODO: fplib

Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

branches: 1.6.44; 1.6.50;
Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

Use PLT for PIC call to _exit to avoid text reloc in the shared library.
Add .size directive.

Use macros from <machine/asm.h>. Add some comments.
Same PIC object code. Almost the same non-PIC object code (b/c of
s/jsr/jmp/ to _exit).

branches: 1.3.6;
In PIC code "braf" to cerror, not "bsrf" to it!

Generate proper PIC code for libc_pic.a.

branches: 1.1.2;
Add __clone() for sh3.

Switch arch/sh3/sys to the new compat code layout.

Add missing files.

Merge all MD __sigaction14_sigtramp.c copies into one:
- sparc and sparc64 were not using version 0 sigcontext when there were
no arguments in the signal version. This was probably a bug.
- vax is using +1 the version numbers of the other archs.
- Only hppa was defining __LIBC12_SOURCE__ so it was getting a working
sigcontext before. all the other ports that supported sigcontext had
the compat code disabled.
[pointed out by thorpej, thanks!]
If we want to remove sigcontext support from userland at least now there
is less work to do so.

branches: 1.8.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.7.18;
change __weak_extern to __weak_reference so that gcc4 works.

make these consistent.

Add missing __RCSID()

save errno while trying to install a !SA_SIGINFO trampoline -- this
is expected to fail with !COMPAT_16 kernels, and we shouldn't
overwrite errno in this case

Implement siginfo for sh3.

Merge the nathanw_sa branch.

branches: 1.1.2;
New __sigaction14() system call stub which registers the signal
trampoline, and the signal trampolines themselves.

NOTE: These are not yet enabled; they will be enabled after further
testing on more architectures.

Switch arch/sh3/sys to the new compat code layout.

fix references to the syscall formerly known as SYS___sigreturn14

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

libc for SH3.
TODO: fplib

Switch arch/sh3/sys to the new compat code layout.

fix references to the syscall formerly known as SYS___sigreturn14

branches: 1.1.2;
New __sigaction14() system call stub which registers the signal
trampoline, and the signal trampolines themselves.

NOTE: These are not yet enabled; they will be enabled after further
testing on more architectures.

Decorate the SuperH signal trampoline with the appropriate .cfi
directives to allow exception unwind / backtrace across a signal
handler.

Trailing whitespace

branches: 1.3.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.18;
Add .size directive.

Implement siginfo for sh3.

This can be simplified to RSYSCALL(__syscall), no special treatment necessary.

branches: 1.5.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.2.2;
fix syscall() and __syscall(). r0 has to be set to SYS_syscall or
SYS___syscall, respectively. otherwise sys/arch/sh3/sh3/trap.c will
look at the wrong argument.

__syscall is now mandatory

Use JUMP_CERROR instead of messing with errno directly.
Simplify.

branches: 1.5.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.2.2;
_C_LABEL()

libc for SH3.
TODO: fplib

Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

branches: 1.10.44; 1.10.50;
Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

branches: 1.9.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.6.2;
Fix weak alias.

s/minbrk/_C_LABEL(__minbrk)/.

Thinko in previous: we do always use an internal name.

Add internal names for brk() and sbrk().

branches: 1.2.4;
fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

branches: 1.10.44; 1.10.50;
Change !_REENTRANT && !PIC case to use r4 too.

Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

Use PLT for PIC call to __errno to avoid text reloc in the shared library.
Add .size directive.

branches: 1.7.2;
Provide _REENTRANT code. It's a wonder nobody has noticed this before.
Uncovered by multithreaded bind9 utils.

branches: 1.6.2;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.3.2;
use _C_LABEL()

fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

Mark exect(3) obsolete and bind it to plain execve(2) on all platforms

The original exect(2) from BSD4.2 was enabling bit for tracing
(single-step mode) and calling execve(2). The purpose of it was to generate
a signal for a tracer once the application will change its image to a new
program.

This approach no longer works as:
- exect(2) traces (single-steps) libc and it requires hundreds or
thousands steps before entering a new image
- it's vax and x86 specific code
- this functionality has been moved to the kernel - once a process is
traced it will generate SIGTRAP with si_code TRAP_EXEC and route it to
its debugger
- the side effects and unportability make this interface unusable
- there are no known users of this interface
- it apparently never worked better since day0 of NetBSD ("day0 bug")

Users are requested to move to other execve(2) variants. Calling current
execve(2) as it is the most similar behavior to this one from BSD4.2.

Discussed several times on mailing lists and in PR/51700.

Add warning to exect(3) telling about marking this function obsolete.

This function is prepared to be removed in next libc major bump.

Sponsored by <The NetBSD Foundation>

branches: 1.5.68; 1.5.72;
This can be simplified to PSEUDO(exect,execve).

branches: 1.4.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.1.6;
libc for SH3.
TODO: fplib

Open code _SYSCALL_NOERROR to shave off a memory load and a branch.
Makes this congruent to vforks. Add .size directive.

Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

branches: 1.8.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

Implement pthread_atfork() (in libc, because the required threadlib
stub behavior is exactly the same as the usual behavior).

style fix (no functional change)

branches: 1.4.2;
Fix weak alias.

Need an internal name for fork().

branches: 1.2.4;
fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

branches: 1.3.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.30;
Merge the nathanw_sa branch.

branches: 1.1.2;
file getcontext.S was initially added on branch nathanw_sa.

Switch arch/sh3/sys to the new compat code layout.

Add missing files.

Simplify.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

style fix (no functional change)

branches: 1.4.2;
Fix weak alias.

Need an internal name for pipe(2).

branches: 1.2.4;
fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

branches: 1.8.44; 1.8.50;
Provide _REENTRANT version of errno = 0;

Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

branches: 1.6.6;
In PIC code "braf" to cerror, not "bsrf" to it!

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.2.2;
_C_LABEL()

libc for SH3.
TODO: fplib

Pass PICFLAGS down to cc-as-as and use __PIC__ to decide if it is small
vs big PIC mode. Retire -DPIC and -DBIGPIC.

branches: 1.9.44; 1.9.50;
Change cerror to take errno in r4, instead of r0.
In PIC code fetch cerror address from GOT to avoid
unresolved text relocations in shared libraries.
Hide the code to jump to cerror inside JUMP_CERROR macro.
Change syscall code to use JUMP_CERROR.
Die text relocations! DIE!

branches: 1.8.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.5.2;
Fix weak alias.

Thinko in previous: we do always use an internal name.

Add internal names for brk() and sbrk().

branches: 1.2.4;
fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

Merge the nathanw_sa branch.

style fix (no functional change)

branches: 1.3.2;
_C_LABEL()

fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

Add special treatment of shmat(2).
On m68k ELF calling standard (__SVR4_ABI__), if a function
returns a pointer, the return value should go to a0 as well as d0.

Switch arch/sh3/sys to the new compat code layout.

Add missing files.

Switch arch/sh3/sys to the new compat code layout.

libc for SH3.
TODO: fplib

Switch arch/sh3/sys to the new compat code layout.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

style fix (no functional change)

branches: 1.3.2;
Change comment character from '#' to '!'. (binutils-2.10 doesn't like '#')

fill delay slots (from Klaus Klein)

libc for SH3.
TODO: fplib

Switch arch/sh3/sys to the new compat code layout.

branches: 1.6.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

Renamed reference to compat syscall to conform to new naming scheme.

branches: 1.2.2;
Change comment character from '#' to '!'. (binutils-2.10 doesn't like '#')

libc for SH3.
TODO: fplib

Switch arch/sh3/sys to the new compat code layout.

the WARN_REFERENCES text "include <signal.h> for correct reference" is pointless
as <signal.h> won't help you, so remove it

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

libc for SH3.
TODO: fplib

Switch arch/sh3/sys to the new compat code layout.

branches: 1.5.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.2.2;
Change comment character from '#' to '!'. (binutils-2.10 doesn't like '#')

libc for SH3.
TODO: fplib

Rename "syscall" to "_syscall" and provide "syscall" as a weak alias.

branches: 1.6.86;
This can be simplified to RSYSCALL(syscall), no special treatment necessary.

branches: 1.5.6;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Generate proper PIC code for libc_pic.a.

style fix (no functional change)

branches: 1.2.2;
fix syscall() and __syscall(). r0 has to be set to SYS_syscall or
SYS___syscall, respectively. otherwise sys/arch/sh3/sh3/trap.c will
look at the wrong argument.

libc for SH3.
TODO: fplib