syscall/trap entry, eliminating a test+branch on every syscall/trap.
This wasn't possible in the 3.99.x timeframe when l->l_cred came about
because there wasn't a reliable/timely way to force an ONPROC LWP running on
a remote CPU into the kernel (which is just about the only new thing in
this scheme).
rename tf_hptm to tf_cr24 in kgdb_hppa.c.
This name was lost from trapframe (frame.h) in v1.8 and restored as tf_cr24 in v1.12.
Fixes KGDB enabled build for hppa.
this introduces 4 new warning disable flags:
CC_WNO_MISSING_TEMPLATE_KEYWORD
CC_WNO_REGISTER
CC_WNO_STRINGOP_OVERREAD
CC_WNO_ARRAY_BOUNDS
and documents them in README.warnings. of these, the string op
and array bounds are both problematic (real bugs) and also spurious
(not real bugs), and the other 2 are mostly temporary for older
3rd party code.
add some new uses of CC_WNO_STRINGOP_OVERFLOW.
fix m68k build for gallium and GCC 12.
how something is setup but technically is undefined behaviour. the
most common here is "extern int end;" and then using offsets of "&end"
that are outside the bounds of this 4-byte integer.
these uses are almost certainly all OK in reality.
found by GCC 12.
Turns out machine/lock.h is not needed for __cpu_simple_lock_t, which
always comes from sys/types.h. And, really, sys/types.h (or at least
sys/stdint.h) is needed for uintN_t and uintptr_t.
machine/lock.h isn't necessary for __cpu_simple_lock_t, it's in
sys/types.h. avoids cpu_data.h vs sched.h include order issues.
move the hppa ipl_t typedef with the moved usage of it.
implementation visibility of these relocations.
Currently all implementations resolve local symbol relocations in the first
pass and simply skip them in the second. The RISC-V implementation will
make use of this visiblity.
disabling support in UFS2 for extended attributes (including ACLs).
Add a new variant of UFS2 called "UFS2ea" that does support extended attributes.
Add new fsck_ffs operations "-c ea" and "-c no-ea" to convert file systems
from UFS2 to UFS2ea and vice-versa (both of which delete all existing extended
attributes in the process).
This can be included unconditionally, and db_active can then be
queried unconditionally; if DDB is not in the kernel, then db_active
is a constant zero. Reduces need for #include opt_ddb.h, #ifdef DDB.
Plus a handful of others that I'm familiar with. Lots of special-
purpose kernels should probably have this too but I'm not going
through all the arm, mips, and ppc evaluation board kernels to see
which ones are relevant.
Omitted from systems I know to be very small:
- sun2/GENERIC
- dreamcast/GENERIC
Feel free to remove it from others that need to be kept smaller.
Compile-tested a few of these just in case:
- alpha/GENERIC
- amd64/GENERIC
- evbmips/OCTEON
- i386/GENERIC
- riscv/GENERIC
PR kern/29702
- Enable UFS_DIRHASH if the architecture or kernel model specific config
file can use 128MB of RAM or more.
- Remove experimental tag from UFS_DIRHASH; it's been with RUMP kernel
and by a number of NetBSD developers for years.
- Add LFS_DIRHASH if LFS was enabled.
- Be somewhat consistent with FS options order.
other break instructions will be reported as SIGTRAP/TRAP_BRKPT
This fixes a mistake I made back in 2008.
PR/56866: hppa: kernel gets confused between actual breakpoints and single-step breakpoints
change is inspired by OpenBSD with a bunch of my own, mainly stylistic,
changes.
Thanks to Tom Lane for the analysis.
PR/56118: sporadic app crashes in HPPA -current
thorpej