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15254 %ymm registers not restored after signal handler
15367 x86 getfpregs() summons corrupting %xmm ghosts
15333 want x86 /proc xregs support (libc_db, libproc, mdb, etc.)
15336 want libc functions for extended ucontext_t
15334 want ps_lwphandle-specific reg routines
15328 FPU_CW_INIT mistreats reserved bit
15335 i86pc fpu_subr.c isn't really platform-specific
15332 setcontext(2) isn't actually noreturn
15331 need <sys/stdalign.h>
Change-Id: I7060aa86042dfb989f77fc3323c065ea2eafa9ad
Conflicts:
    usr/src/uts/common/fs/proc/prcontrol.c
    usr/src/uts/intel/os/archdep.c
    usr/src/uts/intel/sys/ucontext.h
    usr/src/uts/intel/syscall/getcontext.c

*** 102,112 **** segments, each containing several note entries as described below. The note entry header and core file note type (n_type) definitions are contained in <sys/elf.h>. The first NOTE segment exists for binary compatibility with old programs that deal with core files. It contains structures defined in <sys/old_procfs.h>. New programs should recognize ! and skip this BNOTE segment, advancing instead to the new NOTE segment. The old NOTE segment is deleted from core files in a future release. The old NOTE segment contains the following entries. Each has entry name CORE and presents the contents of a system structure: --- 102,112 ---- segments, each containing several note entries as described below. The note entry header and core file note type (n_type) definitions are contained in <sys/elf.h>. The first NOTE segment exists for binary compatibility with old programs that deal with core files. It contains structures defined in <sys/old_procfs.h>. New programs should recognize ! and skip this NOTE segment, advancing instead to the new NOTE segment. The old NOTE segment is deleted from core files in a future release. The old NOTE segment contains the following entries. Each has entry name CORE and presents the contents of a system structure:
*** 136,146 **** interest to a debugger from the operating system, such as the general registers, signal dispositions, state, reason for stopping, process-ID, and so forth. The prstatus_t structure is defined in <sys/old_procfs.h>. ! prfpregset_t n_type: NT_PRFPREG. This entry is present only if the BLWP used the floating-point hardware. It contains the floating-point registers. The prfpregset_t structure is defined in <sys/procfs_isa.h>. gwindows_t n_type: NT_GWINDOWS. This entry is present only on a SPARC --- 136,146 ---- interest to a debugger from the operating system, such as the general registers, signal dispositions, state, reason for stopping, process-ID, and so forth. The prstatus_t structure is defined in <sys/old_procfs.h>. ! prfpregset_t n_type: NT_PRFPREG. This entry is present only if the LWP used the floating-point hardware. It contains the floating-point registers. The prfpregset_t structure is defined in <sys/procfs_isa.h>. gwindows_t n_type: NT_GWINDOWS. This entry is present only on a SPARC
*** 147,160 **** machine and only if the system was unable to flush all of the register windows to the stack. It contains all of the unspilled register windows. The gwindows_t structure is defined in <sys/regset.h>. ! prxregset_t n_type: NT_PRXREG. This entry is present only if the ! machine has extra register state associated with it. It ! contains the extra register state. The prxregset_t ! structure is defined in sys/procfs_isa.h. The new NOTE segment contains the following entries. Each has entry name CORE and presents the contents of a system structure: psinfo_t n_type: NT_PSINFO. This structure contains information of --- 147,163 ---- machine and only if the system was unable to flush all of the register windows to the stack. It contains all of the unspilled register windows. The gwindows_t structure is defined in <sys/regset.h>. ! prxregset_t n_type: NT_PRXREG. This entry is no longer included in ! core files, but is of historical note because in the past ! it was included on SPARC-based systems. While since then ! the prxregset_t and extended register sets have been ! defined on other architectures, they do not emit this in ! the old note section because there is no binary ! compatibility. The new NOTE segment contains the following entries. Each has entry name CORE and presents the contents of a system structure: psinfo_t n_type: NT_PSINFO. This structure contains information of
*** 289,299 **** defined in <sys/regset.h>. prxregset_t n_type: NT_PRXREG. This entry is present only if the machine has extra register state associated with it. It contains the extra register state. The prxregset_t ! structure is defined in <sys/procfs_isa.h>. asrset_t asrset_t n_type: NT_ASRS. This entry is present only on a SPARC V9 machine and only if the process is a 64-bit process. It contains the ancillary state registers for the LWP. The asrset_t asrset_t structure is defined in --- 292,307 ---- defined in <sys/regset.h>. prxregset_t n_type: NT_PRXREG. This entry is present only if the machine has extra register state associated with it. It contains the extra register state. The prxregset_t ! structure is defined in <sys/procfs_isa.h>; however ! applications should include <procfs.h> to get access to it. ! On most architectures the prxregset_t is opaque and is made ! up of multiple structures because it can vary in length. ! proc(5) discusses the structure of the extended register set ! for each supported architecture. asrset_t asrset_t n_type: NT_ASRS. This entry is present only on a SPARC V9 machine and only if the process is a 64-bit process. It contains the ancillary state registers for the LWP. The asrset_t asrset_t structure is defined in
*** 318,323 **** elfdump(1), gcore(1), mdb(1), proc(1), ps(1), getrlimit(2), setrlimit(2), setuid(2), sysinfo(2), uname(2), upanic(2), getzoneid(3C), getzonenamebyid(3C), elf(3ELF), signal.h(3HEAD), a.out(5), proc(5), security-flags(7), zones(7), coreadm(8) ! illumos August 3, 2021 illumos --- 326,331 ---- elfdump(1), gcore(1), mdb(1), proc(1), ps(1), getrlimit(2), setrlimit(2), setuid(2), sysinfo(2), uname(2), upanic(2), getzoneid(3C), getzonenamebyid(3C), elf(3ELF), signal.h(3HEAD), a.out(5), proc(5), security-flags(7), zones(7), coreadm(8) ! illumos January 24, 2023 illumos