2000-08-08 Jason Eckhardt <jle@cygnus.com>
* config/tc-i860.h: Rework completely for BFD_ASSEMBLER.
(i860_fix_info): New enum.
(MD_APPLY_FIX3): Define.
(WORKING_DOT_WORD): Define.
(TC_HANDLES_FX_DONE): Define.
(DIFF_EXPR_OK): Define.
(LISTING_HEADER): Define.
(TARGET_FORMAT): Select target format based on endian flag.
(TARGET_BYTES_BIG_ENDIAN): Default to little endian.
(target_big_endian): Add external declaration.
* config/tc-i860.c: All existing code reworked completely. Other
new code shown below.
(SYNTAX_SVR4): Define.
(target_warn_expand): New variable.
(md_shortopts): Declare and define (-Qy, -Qn, and -V options).
(md_longopts): Declare and define with new options (-EL, -EB,
and -mwarn-expand).
(md_show_usage): New function.
(md_operand): New function.
(obtain_reloc_for_imm16): New function.
(md_apply_fix3): New function.
(tc_gen_reloc): New function.
include:
2000-08-08 Jason Eckhardt <jle@cygnus.com>
* opcode/i860.h: Small formatting adjustments.
opcode:
2000-08-08 Jason Eckhardt <jle@cygnus.com>
* i860-dis.c (print_br_address): Change third argument from int
to long.
bfd:
2000-08-08 Jason Eckhardt <jle@cygnus.com>
* elf32-i860.c (elf32_i860_howto_table): Updated some fields.
(cygwin_select): Move fd_set copying logic from ::wait to here. Use common
return through sell.poll.
(select_stuff::wait): Just return success or failure and let caller fill in
fd_set.
* pinfo.h (pinfo): Eliminate self-referential pointer to sidbuf since pinfo
structure exists at random locations now.
* fork.cc (fork): Use 'use_psid' element to control when the psid is relevant.
* shared.cc (sec_user): Ditto.
* spawn.cc (spawn_guts): Ditto.
* uinfo.cc (internal_getlogin): Ditto.
* syscall.cc (seteuid): Ditto. Set use_psid element.
* libc/stdio/snprintf.c (snprintf, _snprintf_r): Fixed code
so size of 0 results in nothing being written to string.
Also fixed code so that when size is non-zero, there is only
a maximum of size - 1 characters written to the array and
a nul terminator is appended at the end.
* libc/stdio/vsnprintf.c (vsnprintf, _vsnprintf_r): Ditto.
since we are already bounds checked by default.
* thread.cc (ResourceLocks::Lock): Streamline this function since it is called
a lot.
(ReleaseResourceLock): Ditto.
recovery.
* spawn.cc (spawn_guts): Reorganize slightly to consolidate handling when there
is a CreateProcess error.
(_spawnve): Only longjmp back to vfork handling when a process has been
successfuly started.
* winsup.h (vfork_save): Extend to include frame info. Remove obsolete cpplus
conditionals.
* configure.in (qCXX_FOR_TARGET): Use echo instead of expr.
2000-07-31 Alexandre Oliva <aoliva@redhat.com>
* configure.in (qCXX_FOR_TARGET): Quote `&' characters in
CXX_FOR_TARGET for sed.
2000-07-30 Alexandre Oliva <aoliva@redhat.com>
* configure.in (CC_FOR_TARGET, CHILL_FOR_TARGET, CXX_FOR_TARGET):
Do not override if already set in the environment or in configure.
Don't duplicate $(FLAGS_FOR_TARGET) if it already appears in them.
(FLAGS_FOR_TARGET): Don't use host directories on Canadian crosses.
* *.cc: put winsup.h before other headers (for __INSIDE_CYGWIN__);
use cur_environ() instead of just environ
* times.cc: remove import protections
* glob.c: add winsup.h
* localtime.c: ditto
* smallprint.c: ditto
* Makefile.in: don't __INSIDE_CYGWIN__ as it messes up profiling.
variable argument macros when possible.
* sigproc.cc: Throughout, use sigproc_printf rather than sip_printf.
* strace.cc (strace::prntf): Remove 'active' check, since callers are supposed
to ensure this.
(__system_printf): Remove. Subsumed by strace::prntf.
* winsup.h: Define "NEW_MACRO_VARARGS" to indicate when to use new macro
varargs capability.
(get_nonascii_key): Simplify previous patch to return ascii char if it is
non-zero. Add a second "temporary buffer" argument to help with thread safety.
* select.cc (peek_console): Pass a temporary buffer argument to
get_nonascii_key.
(forcekill): New function.
* ps.cc (main): Add '-W' option to list Windows pids as well as Cygwin pids.
(dummyprocessmodules): New function.
(GetModuleFileNameEx95): New function.
(init_win): New function.
(to_time_t): New function.
the changes below. Redefine process structure to avoid a fixed size table.
Redefine pinfo/_pinfo classes. Use these throughout.
* dcrt0.cc (dll_crt0_1): Accomodate set_myself argument change.
(__api_fatal): Accomodate _pinfo::record_death argument change.
* exceptions.cc (really_exit): Ditto.
(sig_handle_tty_stop): Use pinfo constructor to access process info.
(events_init): Don't create pinfo_mutex since it is no longer required.
* external.cc (fillout_pinfo): Use winpids class to iterate over all system
pids.
(cygwin_internal): lock_pinfo_for_update and unlock_pinfo are now noops.
* fhandler_termios.cc (fhandler_termios::set_ctty): Use pinfo constructor to
access process info.
* fork.cc (fork): Reorganize to initialize child info after the child has
started since that is when we know the child's winpid, which is necessary to
allocate the pinfo shared memory.
* mmap.cc (recreate_mmaps_after_fork): Change arg type to _pinfo.
* pinfo.cc: Rename pinfo methods to _pinfo throughout. Eliminate pinfo_list
stuff.
(set_myself): Accept a pid argument now. Call pinfo initializer to initialize
myself. Detect when this is an "execed" process and create an "indirect" pid
block.
(pinfo_init): Accomodate set_myself arg change.
(procinfo): Remove.
(pinfo::lock_pinfo): Remove.
(pinfo::unlock_pinfo): Remove.
(pinfo::init): New method. Allocates shared memory space for process pinfo
structure.
(pinfo::record_death): Don't call locking functions.
(cygwin_winpid_to_pid): Simplify by using new pinfo constructor.
(EnumProcessesW95): New function for iterating over processes on Windows 95.
(winpids::winpids): New constructor for winpids class. Sets up a list of
process ids.
(enum_init): Initialize w95/wnt pid enumerators.
* shared.cc (shared-info::initialize): Remove pid initialization.
* shared.h: Move pinfo stuff into pinfo.h.
(class shared_info): Remove pinfo_list element.
* signal.cc (kill_worker): Use pinfo constructor to access process info.
(kill_pgrp): Ditto. Use winpids methods to access list of processes.
* sigproc.cc: Throughout, modify to use _pinfo where appropriate.
(proc_exists (pid_t)): New function. Determines if a process exists based on
the pid.
(proc_exists (_pinfo *p): Use new proc_exists function above.
(proc_subproc): Copy pinfo stuff around rather than _pinfo pointers. Try to be
careful about releasing shared memory when we don't need it anymore. Remove
pinfo locks.
(remove_zombies): Remove pinfo memory when zombie is going away.
* sigproc.h: Reflect _pinfo/pinfo changes in sigproc.cc.
* spawn.cc (spawn_guts): Eliminate pinfo *child argument. Reorganize to only
initialize child pinfo after process has been started and we know the windows
pid.
(_spawnve): Reflect spawn_guts changes.
* syscalls.cc (setpgid): Use pinfo constructor to access process info.
(getpgid): Ditto.
(internal_getlogin): Use _pinfo.
* winsup.h: Eliminate pinfo_mutex. Eliminate spawn_guts declaration since it
is static now. Reflect set_myself argument change.
* include/sys/cygwin.h: Add some PID_* enums to accomodate new pinfo stuff.
* include/cygwin/version.h: Update minor version for cygdrive changes below.
* lib/cygwin_crt0.c: Inexplicably need to define alloca for newer compilers.
* fhandler.h (fhandler_console): Add new method.
* fhandler.cc (fhandler_console::set_cursor_maybe): New method.
(fhandler_console::read): Set cursor if it has moved to make it visible.
* external.cc (get_cygdrive_prefixes): New function.
(cygwin_internal): Add CW_GET_CYGDRIVE_PREFIXES case.
* path.cc (mount_info::read_cygdrive_info_from_registry): Read system cygdrive
prefix if user one is undefined.
(mount_info::write_cygdrive_info_to_registry): Write cygdrive prefix to the
appropriate registry hive. Overwrite in-memory copy of cygdrive, if
appropriate.
(mount_info::remove_cygdrive_info_from_registry): New method.
(mount_info::get_cygdrive_prefixes): New method.
(cygwin_umount): Remove cygdrive prefix, if appropriate.
* registry.cc (reg_key::killvalue): New method.
* shared.h (class reg_key): Add killvalue, remove_cygdrive_info_to_registry,
and get_cygdrive_prefixes declarations.
* include/sys/cygwin.h (cygwin_getinfo_types): Add CW_GET_CYGDRIVE_PREFIXES.
* opcode/i860.h (btne, bte, bla): Changed these opcodes
to use sbroff ('r') instead of split16 ('s').
(J, K, L, M): New operand types for 16-bit aligned fields.
(ld.x, {p}fld.x, fst.x, pst.d): Changed these opcodes to
use I, J, K, L, M instead of just I.
(T, U): New operand types for split 16-bit aligned fields.
(st.x): Changed these opcodes to use S, T, U instead of just S.
(andh, andnoth, orh, xorh): Deleted 3-register forms as they do not
exist on the i860.
(pfgt.sd, pfle.sd): Deleted these as they do not exist on the i860.
(pfeq.ss, pfeq.dd): New opcodes.
(st.s): Fixed incorrect mask bits.
(fmlow): Fixed incorrect mask bits.
(fzchkl, pfzchkl): Fixed incorrect mask bits.
(faddz, pfaddz): Fixed incorrect mask bits.
(form, pform): Fixed incorrect mask bits.
(pfld.l): Fixed incorrect mask bits.
(fst.q): Fixed incorrect mask bits.
(all floating point opcodes): Fixed incorrect mask bits for
handling of dual bit.
* elf/i860.h: New file.
(elf_i860_reloc_type): Defined ELF32 i860 relocations.
* dis-asm.h (print_insn_i860): Add prototype.
* include/opcode/i860.h (btne, bte, bla): Changed these opcodes
to use sbroff ('r') instead of split16 ('s').
(J, K, L, M): New operand types for 16-bit aligned fields.
(ld.x, {p}fld.x, fst.x, pst.d): Changed these opcodes to
use I, J, K, L, M instead of just I.
(T, U): New operand types for split 16-bit aligned fields.
(st.x): Changed these opcodes to use S, T, U instead of just S.
(andh, andnoth, orh, xorh): Deleted 3-register forms as they do not
exist on the i860.
(pfgt.sd, pfle.sd): Deleted these as they do not exist on the i860.
(pfeq.ss, pfeq.dd): New opcodes.
(st.s): Fixed incorrect mask bits.
(fmlow): Fixed incorrect mask bits.
(fzchkl, pfzchkl): Fixed incorrect mask bits.
(faddz, pfaddz): Fixed incorrect mask bits.
(form, pform): Fixed incorrect mask bits.
(pfld.l): Fixed incorrect mask bits.
(fst.q): Fixed incorrect mask bits.
(all floating point opcodes): Fixed incorrect mask bits for
handling of dual bit.
* include/elf/i860.h: New file.
(elf_i860_reloc_type): Defined ELF32 i860 relocations.
* bfd/cpu-i860.c: Added comments.
* bfd/elf32-i860.c (TARGET_LITTLE_SYM): Defined to
bfd_elf32_i860_little_vec.
(TARGET_LITTLE_NAME): Defined to "elf32-i860-little".
(ELF_MAXPAGESIZE): Changed to 4096.
* bfd/targets.c (bfd_elf32_i860_little_vec): Declaration of
new target.
(bfd_target_vector): Added bfd_elf32_i860_little_vec.
* bfd/config.bfd (i860-stardent-sysv4*, i860-stardent-elf*): Added
config for little endian elf32 i860.
(targ_defvec): Define for the new config above
as "bfd_elf32_i860_little_vec".
(targ_selvecs): Define for the new config above
as "bfd_elf32_i860_vec bfd_elf32_i860_little_vec"
* bfd/configure.in (bfd_elf32_i860_little_vec): Added recognition
of new target vec.
* bfd/configure: Regenerated.
* opcodes/i860-dis.c: New file.
(print_insn_i860): New function.
(print_br_address): New function.
(sign_extend): New function.
(BITWISE_OP): New macro.
(I860_REG_PREFIX): New macro.
(grnames, frnames, crnames): New structures.
* opcodes/disassemble.c (ARCH_i860): Define.
(disassembler): Add check for bfd_arch_i860 to set disassemble
function to print_insn_i860.
* include/dis-asm.h (print_insn_i860): Add prototype.
* opcodes/Makefile.in (CFILES): Added i860-dis.c.
(ALL_MACHINES): Added i860-dis.lo.
(i860-dis.lo): New dependences.
* opcodes/configure.in: New bits for bfd_i860_arch.
* opcodes/configure: Regenerated.
(GCC_FOR_TARGET): Use it.
(CC_FOR_TARGET, CXX_FOR_TARGET, CHILL_FOR_TARGET): Now defined...
* configure.in: ... here.
(FLAGS_FOR_TARGET): Define. Add ld build dir to -L path.
(libstdcxx_flags): Define and append to CXX_FOR_TARGET.
- 'Why is gcc failing'
- 'Why can't bison find bison.simple or bison.hairy?'
Remove disclaimer from up-to-date entries (possibly with some minor changes):
- 'How is fork() implemented?'
- 'How do symbolic links work?'
- 'How do I compile a Win32 executable that doesn't use Cygwin?'
- 'How do I make the console window go away?'
- 'Why does make complain about a "missing separator"?'
- 'Why can't we redistribute Microsoft's Win32 headers?'
- 'How can I debug what's going on?'
- 'Can I use a system trace mechanism instead?'
- 'Can I use the gdb debugger to debug programs built by VC++?'
- 'Where can I find info on x86 assembly?'
- 'Why not use DJGPP?'
Jason Eckhardt
Christopher Faylor
DJ Delorie
Corinna Vinschen
Jeff Johnston
Nick Clifton
Denis Chertykov
Alexandre Oliva
Michael Meissner
Frank Ch. Eigler
David Starks-Browning