openbsd-src/sys/arch/m88k/include/ at master · jcs.org/openbsd-src

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openbsd-src / sys / arch / m88k / include /

at master 41 files

m88k does not have the m68k long double type actually (long double == double on this platform), so don't pretend it does, and don't build long double libm routines.

13 years ago

m88k, luna88k: switch to clockintr

3 years ago

_C_LABEL() and _ASM_LABEL() are no longer useful in the "everything is ELF" world. Eliminate use of them in m88k code.

3 years ago

It's been a quarter century: we can assume volatile is present with that name.

12 years ago

use ansi volatile keyword, not __volatile ok miod@ guenther@

3 years ago

Add __strong_alias macros for all architectures to be able to alias another symbol without weak attribute. To be used in libc and libm soon. Agreed by kettenis@, guenther@, matthew@.

13 years ago

Allow initial device mappings (from pmap_table) to be backed up by BATC. Use this on luna88k to map the bitmap planes of the frame buffer used by the driver. 10% speedup under X.

12 years ago

On systems without xonly mmu hardware-enforcement, we can still mitigate against classic BROP with a range-checking wrapper in front of copyin() and copyinstr() which ensures the userland source doesn't overlap the main program text, ld.so text, signal tramp text (it's mapping is hard to distinguish so it comes along for the ride), or libc.so text. ld.so tells the kernel libc.so text range with msyscall(2). The range checking for 2-4 elements is done without locking (because all 4 ranges are immutable!) and is inexpensive.

3 years ago

Remove typedef of db_addr_t; mpi converted the users of it to vaddr_t already back in 2019.

4 years ago

Tackle the endian.h mess. Make it so that: * you can #include <sys/endian.h> instead of <machine/endian.h>, and ditto <endian.h> (fixes code that pulls in <sys/endian.h> first)

11 years ago

In exec_elf.c: expand ELFNAME(), ELFNAME2(), and ELFNAMEEND() except leaving out the size, so that ELFNAME2(exec,makecmds) becomes exec_elf_makecmds instead of exec_elf{32,64}_makecmds and then delete the ELFNAME2() and ELFNAMEEND() macros.

9 years ago

Also enclose variable names with external linkage in __BEGIN_DECLS.

15 years ago

Replace the assembly 88100 FPU imprecise exception code (mostly triggered by denormal results) with C code using softfloat to correctly round the inexact results in the best possible way according to the current rounding mode.

11 years ago

Resolve the struct trapframe tf_mode/tf_flags duality by getting rid of the tf_mode name. This field only contains flags used internally by the exception processing code.

18 years ago

Adapt ieee.h, gdtoa and libc to the fact that we don't have 80-bit floats on m88k. Agreed by miod@.

13 years ago

Replace the unmaintainable assembler code responsible for 88100 precise FPU fault handling with a C wrapper around the softfloat code, as already done for 88110 kernels.

12 years ago

Remove unused spllock().

7 years ago

MVME88K -> M88K in include file guard symbols. No functional changes.

20 years ago

Remove SIZE_MAX from limits.h. It was added years ago before we had a proper stdint.h. No ports fallout. OK guenther@ miod@

11 years ago

make the rwlock implementation MI.

11 years ago

Introduce m88100_rewind_insn() to rewind the execution pipeline one instruction, rather than gazillions of inline variants. This also makes the situations where we clear specific bits in the fip or nip registers more visible.

12 years ago

Extend cmmu routines to return the caching mode to use for page tables.

13 years ago

It's been a quarter century: we can assume volatile is present with that name.

12 years ago

Make luna88k use the MI mplock implementation.

8 years ago

Rewrite m88k mutex code as a slight variation of the MI mutex code.

5 years ago

Unify and bump some of the NMBCLUSTERS defines. Some archs had it set to 4MB which is far too low especially when the platform is able to run MP. New limits are, amd64 = 256M; arm64, mips64, sparc64 = 64M; alpha, arm, hppa, i386, powerpc = 32M; m88k, sh = 8M Still rather conservative numbers but much better than before. At least some hangs of arm64 build boxes was caused by this. OK kettenis@, visa@

7 years ago

user land -> userland; from Rob Pierce

10 years ago

m88k also needs to define PMAP_CHECK_COPYIN as 1.

3 years ago

Allow initial device mappings (from pmap_table) to be backed up by BATC. Use this on luna88k to map the bitmap planes of the frame buffer used by the driver. 10% speedup under X.

12 years ago

Provide mips64 with kernel-facing TCB_{GET,SET} macros that store it in struct mdproc. With that, all archs have those and the __HAVE_MD_TCB macro can be unifdef'ed as always defined.

9 years ago

A really working version of MCOUNT.

13 years ago

Fix comments telling that the `serial mode' bit in PSR only applies to 88110, it also exists on 88100. While there, do not allow userland to set it.

13 years ago

Normalize sentinel. Use _MACHINE_*_H_ and _<ARCH>_*_H_ properly and consitently.

15 years ago

Use `long' instead of `int' in structure layouts which may get assigned from (or to) register_t, but need to be usable without register_t in scope, so that the compiler won't warn about these assignments after the recent _types.h changes; aoyama@

12 years ago

Switch m88k ports to ELF.

13 years ago

Normalize sentinel. Use _MACHINE_*_H_ and _<ARCH>_*_H_ properly and consitently.

15 years ago

Add sc_cookie in sigcontext, as same as other ports. From Miod Vallat, tested by him and me.

9 years ago

Move mutex, condvar, and thread-specific data routes, pthread_once, and pthread_exit from libpthread to libc, along with low-level bits to support them. Major bump to both libc and libpthread.

8 years ago

%r26 hasn't been used by the threads implementation since 2016, so stop resetting it in child_return() and update the comment in tcb.h to reflect reality

6 years ago

miod notes T_USER needs to be a bit, it was not.

5 years ago

Remove the definition of USRTEXT. It has no relevance outside of the non-PIE a.out world. ok deraadt@ kettenis@

10 years ago