| Commit message (Collapse) | Author | Age | Files | Lines |
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This speeds up the TXR Lisp interpreter, because do_eval
sets up a debug frame and uses debug_return.
* debug.c (debug_block_s): Symbol removed.
(debug_init): Remove initialization of debug_block_s.
* debug.h (debug_block_s): Declaration removed.
(debug_enter): Do not establish a named block or a catch block;
no time-wasting unwind stack manipulation at all.
The debug_depth variable is managed by the extended setjmp
context now. Provide a return value variable, and a well-defined name to
branch to to exit from the debug block.
(debug_return): Do not use heavy-weight uw_block_return;
simply set the return variable and branch to debug_return_out
label.
* signal.h (EJ_DBG_MEMB, EJ_DBG_SAVE, EJ_DBG_REST,
EJ_OPT_MEMB, EJ_OPT_SAVE, EJ_OPT_REST): New macros.
(extended_jmp_buf): Define optional global state
variables using EJ_OPT_MEMB.
(extended_setjmp): Save and restore optional
globals using EJ_OPT_SAVE and EJ_OPT_RESTORE.
Now debug_depth is saved and restored if
debugging support is compiled in.
* match.c (open_data_source): Remove bogus debug_return
invocations which were uncovered here by changes to the macro.
* eval.c (do_eval, expand_macro): debug_return must now be after
debug_end, because it won't dynamically clean up frames that it doesn't
know about. The set_dyn_env is no longer unreachable in expand_macro;
it is now necessary because debug_return isn't doing the longjmp
that previously restored dyn_env.
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* arith.c, arith.h, combi.c, combi.h, debug.c, debug.h, eval.c, eval.h,
filter.c, filter.h, gc.c, gc.h, hash.c, hash.h, lib.c, lib.h,
match.c, match.h, parser.h, rand.c, rand.h, regex.c, regex.h,
signal.c, signal.h, stream.c, stream.h, sysif.c, sysif.h, syslog.c,
syslog.h, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h:
Update.
* LICENSE, METALICENSE: Likewise.
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(GREP_CHECK): New macro.
(enforce): Rewritten using GREP_CHECK, with new checks.
* arith.c, combi.c, debug.c, eval.c, filter.c, gc.c, hash.c, lib.c,
* lib.h, match.c, parser.l, parser.y, rand.c, regex.c, signal.c,
* signal.h, stream.c, syslog.c, txr.c, unwind.c, utf8.c: Remove
trailing spaces.
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to C++ style casts when compiling as C++.
* lib.h (strip_qual, convert, coerce): New casting macros.
(TAG_MASK, tag, type, wli_noex, auto_str, static_str,
litptr, num_fast, chr, lit_noex, nil, nao): Use cast macros.
* arith.c (mul, isqrt_fixnum, bit): Use cast macros.
* configure (INT_PTR_MAX): Define using cast macro.
* debug.c (debug_init): Use cast macro.
* eval.c (do_eval, expand_macro, reg_op, reg_mac, eval_init):
Use cast macros.
* filter.c (filter_init): Use cast macro.
* gc.c (more, mark_obj, in_heap, mark, sweep_one, unmark): Use
cast macros.
* hash.c (hash_double, equal_hash, eql_hash, hash_equal_op,
hash_hash_op, hash_print_op, hash_mark, make_hash, make_similar_hash,
copy_hash, gethash_c, gethash, gethash_f, gethash_n, remhash,
hash_count, get_hash_userdata, set_hash_userdata, hash_iter_destroy,
hash_iter_mark, hash_begin, hash_uni, hash_diff, hash_isec): Use
cast macros.
* lib.c (code2type, chk_malloc, chk_malloc_gc_more, chk_calloc,
chk_realloc, chk_strdup, num, c_num, string, mkstring, mkustring,
upcase_str, downcase_str, string_extend, sub_str, cat_str, trim_str,
c_chr, vector, vec_set_length, copy_vec, sub_vec, cat_vec,
cobj_print_op, obj_init): Likewise.
* match.c (do_match_line, hv_trampoline, match_files, dir_tables_init):
Likewise.
* parser.l (grammar): Likewise.
* parser.y (parse): Likewise.
* rand.c (make_state, make_random_state, random_fixnum, random):
Likewise.
* regex.c (CHAR_SET_L2_LO, CHAR_SET_L2_HI, CHAR_SET_L1_LO,
CHAR_SET_L1_HI, CHAR_SET_L0_LO, CHAR_SET_L0_HI, L0_full, L0_fill_range,
L1_full, L1_fill_range, L1_contains, L1_free, L2_full, L2_fill_range,
L2_contains, L2_free, L3_fill_range, L3_contains, L3_free,
char_set_create, char_set_cobj_destroy, nfa_state_accept,
nfa_state_empty, nfa_state_single, nfa_state_wild, nfa_state_set,
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debug.h, eval.c, eval.h, filter.c, filter.h, gc.c, gc.h, hash.c,
hash.h, lib.c, lib.h, match.c, match.h, parser.h, parser.l, parser.y,
rand.c, rand.h, regex.c, regex.h, signal.c, signal.h, stream.c,
stream.h, syslog.c, syslog.h, txr.c, txr.h, unwind.c, unwind.h,
utf8.c, utf8.h: Synchronize license header with LICENSE.
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executable, whether this is due to being required to use C99.
For instance, the Solaris environment requires compilation
using the C99 dialect if _XOPEN_SOURCE is set to 600 or higher.
* debug.c: When compiling as C99, we have to obey the special
C99 conventions for instantiating inline functions.
* hash.c: Likewise.
* lib.c: Likewise.
* parser.y: Likewise.
* unwind.c: Likewise.
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GC. The issue being solved here is the accuracy of the gc_set function.
The existing impelmentation is too conservative. It has no generation
information about the memory location being stored, and so it assumes
the worst: that it is a location in the middle of a gen 1 object.
This is sub-optimal, creating unacceptable pressure against the
checkobj array and, worse, as a consequence causing unreachable gen 0
objects to be tenured into gen 1.
To solve this problem, we replace "val *" pointers with a structure
of type "loc" which keeps track of the object too, which lets us
discover the generation.
I tried another approach: using just a pointer with a bitfield
indicating the generation. This turned out to have a serious issue:
such a bitfield goes stale when the object is moved to a different
generation. The object holding the memory location is in gen 1, but the
annotated pointer still indicates gen 0. The gc_set function then
makes the wrong decision, and premature reclamation takes place.
* combi.c (perm_init_common, comb_gen_fun_common,
rcomb_gen_fun_common, rcomb_list_gen_fun): Update to new interfaces
for managing mutation.
* debug.c (debug): Update to new interfaces for managing mutation.
Avoid loc variable name.
* eval.c (env_fbind, env_fbind): Update to new interfaces
for managing mutation.
(lookup_var_l, dwim_loc): Return loc type and update to new interfaces.
(apply_frob_args, op_modplace, op_dohash, transform_op, mapcarv,
mappendv, repeat_infinite_func, repeat_times_func): Update to new
interfaces for managing mutation.
* eval.h (lookup_var_l): Declaration updated.
* filter.c (trie_add, trie_compress, trie_compress_intrinsic,
* build_filter, built_filter_from_list, filter_init): Update to new
* interfaces.
* gc.c (gc_set): Rewritten to use loc type which provides the exact
generation. We do not need the in_malloc_range hack any more, since
we have the backpointer to the object.
(gc_push): Take loc rather than raw pointer.
* gc.h (gc_set, gc_push): Declarations updated.
* hash.c (struct hash): The acons* functions use loc instead
of val * now.
(hash_equal_op, copy_hash, gethash_c, inhash, gethash_n, pushhash,
Change to how locations are passed around, for the sake of generational
GC. The issue being solved here is the accuracy of the gc_set function.
The existing impelmentation is too conservative. It has no generation
information about the memory location being stored, and so it assumes
the worst: that it is a location in the middle of a gen 1 object.
This is sub-optimal, creating unacceptable pressure against the
checkobj array and, worse, as a consequence causing unreachable gen 0
objects to be tenured into gen 1.
To solve this problem, we replace "val *" pointers with a structure
of type "loc" which keeps track of the object too, which lets us
discover the generation.
I tried another approach: using just a pointer with a bitfield
indicating the generation. This turned out to have a serious issue:
such a bitfield goes stale when the object is moved to a different
generation. The object holding the memory location is in gen 1, but the
annotated pointer still indicates gen 0. The gc_set function then
makes the wrong decision, and premature reclamation takes place.
* combi.c (perm_init_common, comb_gen_fun_common,
rcomb_gen_fun_common, rcomb_list_gen_fun): Update to new interfaces
for managing mutation.
* debug.c (debug): Update to new interfaces for managing mutation.
Avoid loc variable name.
* eval.c (env_fbind, env_fbind): Update to new interfaces
for managing mutation.
(lookup_var_l, dwim_loc): Return loc type and update to new interfaces.
(apply_frob_args, op_modplace, op_dohash, transform_op, mapcarv,
mappendv, repeat_infinite_func, repeat_times_func): Update to new
interfaces for managing mutation.
* eval.h (lookup_var_l): Declaration updated.
* filter.c (trie_add, trie_compress, trie_compress_intrinsic,
* build_filter, built_filter_from_list, filter_init): Update to new
* interfaces.
* gc.c (gc_set): Rewritten to use loc type which provides the exact
generation. We do not need the in_malloc_range hack any more, since
we have the backpointer to the object.
(gc_push): Take loc rather than raw pointer.
* gc.h (gc_set, gc_push): Declarations updated.
* hash.c (struct hash): The acons* functions use loc instead
of val * now.
(hash_equal_op, copy_hash, gethash_c, inhash, gethash_n, pushhash,
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debugger not printing the current line of data.
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used global variable null which holds a symbol becomes null_s.
A new macro called nilp is added that more efficiently checks whether
an object is nil, producing a C boolean value rather than t or nil.
Most of the uses of nullp in the codebase just become the more
streamlined nilp.
* debug.c (show_bindings): nullp to nilp
* eval.c (lookup_var, lookup_var_l, lookup_fun, lookup_sym_lisp1,
do_eval, expand_qquote, expand_quasi, expand_op): nullp to nilp.
(op_modplace): nullp to null.
(eval_init): Update registration of null and not from C function
nullp to null.
* filter.c (trie_compress, html_hex_continue): nullp to nil.
(filter_string_tree): null to null_s.
* hash.c (hash_next): nullp to nilp.
* lib.c (null): Variable renamed to null_s.
(code2type): null to null_s.
(lazy_flatten_scan, chainv, lazy_str, lazy_str_force_upto,
obj_print, obj_pprint):
nullp to nilp.
(obj_init): null to null_s; nullp to null.
* lib.h (null): declaration changed to null_s.
(nullp): Inline function renamed to null.
(nilp): New macro.
* match.c (do_match_line): nullp to nilp.
* rand.c (make_random_state): Likewise.
* regex.c (compile_regex): Likewise.
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* Makefile (OBJS-y): Include signal.o if have_posix_sigs is "y".
* configure (have_posix_sigs): New variable, set by detecting POSIX
signal stuff.
* dep.mk: Regenerated.
* arith.c, debug.c, eval.c, filter.c, hash.c, match.c, parser.y,
parser.l, rand.c, regex.c, syslog.c, txr.c, utf8.c: Include new
signal.h header, now required by unwind, and the <signal.h> system
header.
* eval.c (exit_wrap): New function.
(eval_init): New functions registered as intrinsics: exit_wrap,
set_sig_handler, get_sig_handler, sig_check.
* gc.c (release): Unused functions removed.
* gc.h (release): Declaration removed.
* lib.c (init): Call sig_init.
* stream.c (set_putc, se_getc, se_fflush): New static functions.
(stdio_put_char_callback, stdio_get_char_callback, stdio_put_byte,
stdio_flush, stdio_get_byte): Use new functions to enable
signals when blocked on I/O.
(tail_strategy): Allow signals across sleep.
(pipev_close): Allow signals across waitpid.
(se_pclose): New static function.
(pipe_close): Use new function to enable signals across pclose.
* unwind.c (uw_unwind_to_exit_point): use extended_longjmp instead of
longjmp.
* unwind.h (struct uw_block, struct uw_catch): jb member changes from
jmp_buf to extended_jmp_buf.
(uw_block_begin, uw_simple_catch_begin, uw_catch_begin): Use
extended_setjmp instead of setjmp.
* signal.c: New file.
* signal.h: New file.
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Fixing some errors in copyright comments.
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in lazy lists. Changing the semantics of the data argument
so that it can just be the list.
* debug.c (debug): If data is a cons, then replace it with
the first item.
* match.c (match_files): Pass c.data to debug_check, rather
than the value of if2(consp(c.data), car(c.data)) which accesses
car(c.data) whether or not we are debugging.
(match_fun): Likewise.
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(debug): Fix conflicting command assignment.
Show form is now 'o'.
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the module file name, not only the line number. Breakpoints work on
source locations rather than line numbers. Boy, this was easy.
Keep the breakpoint list free of duplicates. Issue a message
if a nonexistent breakpoint is asked to be deleted.
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Condense the output to 8 times the screen width, for more context.
Condense the output in vertical mode (when the entire input line
is shown) not only character mode.
* lib.c (remq, remql, remqual): New functions.
* lib.h (remq, remql, remqual): Declared.
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that output has taken place and suppress the printing of bindings.
* debug.c (debug): std_output replaced with std_debug.
* eval.c (eval_init): Registered new *stddebug* variable.
* stream.c (std_debug): New variable.
(stdio_put_string): Check that stream is other than
std_debug, to determine that output has taken place.
* stream.h (std_debug): Declared.
* txr.1: Added *stddebug* to documentation stub heading.
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* arith.h: Likewise.
* debug.c: Added copyright header.
* debug.h: Updated copyright year.
* eval.c: Likewise.
* eval.h: Likewise.
* filter.c: Likewise.
* filter.h: Likewise.
* gc.c: Likewise.
* gc.h: Likewise.
* hash.c: Likewise.
* hash.h: Likewise.
* lib.c: Likewise.
* lib.h: Likewise.
* match.c: Likewise.
* match.h: Likewise.
* parser.h: Likewise.
* regex.c: Likewise.
* regex.h: Likewise.
* stream.c: Likewise.
* stream.h: Likewise.
* txr.c: Likewise, and e-mail address.
* txr.h: Updated copyright year.
* unwind.c: Likewise.
* unwind.h: Likewise.
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* eval.c (eval_error): Use source_loc_str to get source location.
* match.c (debuglf, sem_err, file_err): Likewise.
* parser.h (source_loc_str): Declared.
* parser.l (parse_init): form_to_ln_hash must be equal based now.
* parser.y (rl): Store new form of read-time source location info.
* txr.1: Documented load.
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* debug.c (help, show_bindings): put_string arguments reversed.
* eval.c (bind_args): Support colon notation in interpreted
function lambda lists for optional arguments. Improved error checking.
(apply): Allow optional arguments to be left out.
(dwim_loc): Reversed arguments to replace_str, replace_vec,
replace_list.
(eval_init): Numerous intrinsics now have arguments that are optional.
New function rand introduced which reverses arguments relative to
random. New intrinsic function hash introduced for alternative
construction of hashes.
* gc.c (sweep): Reversed arguments to put_char.
* hash.c (weak_keys_k, weak_vals_k, equal_based_k): New keyword
symbol variables.
(hashv): New function.
(hash_init): Intern new symbols.
* hash.h (weak_keys_k, weak_vals_k, equal_based_k, hashv): Declared.
* lib.c (colon_k): New keyword symbol variable.
(replace_list, replace_str, replace_vec): Arguments rearranged.
(tree_find): testfun becomes optional argument.
(int_str): base becomes optional argument.
(func_f0, func_f1, func_f2, func_f3, func_f4, func_n0,
func_n1, func_n2, func_n3, func_n4, func_f0v, func_f1v,
func_f2v, func_f3v, func_f4v, func_n0v, func_n1v,
func_n2v, func_n3v, func_n4v, func_interp): Initialize optargs to zero.
(func_n0o, func_n1o, func_n2o, func_n3o, func_n4o): New functions.
(cobj_print_op): Reversed arguments to put_string.
(find): testfun and keyfun become optional arguments.
(replace): Parameters rearranged and arguments rearranged in calls to
replace_list, replace_str and replace_vec.
(obj_init): colon_k initialized.
(obj_print, obj_pprint): Arguments reversed, and stream defaults
to std_output. Arguments reversed in calls to put_char and put_string.
(dump): Arguments reversed in call to put_char.
* lib.h (struct func): sizes of minparam, fixparam bitfields
adjusted. New bitfield optargs. New unnamed bitfield added so
the previous ones add up to 16 bits.
(colon_k): Declared.
(func_n0o, func_n1o, func_n2o, func_n3o, func_n4o): Declared.
(replace_list, replace_str, replace_vec, replace): Declarations updated.
* match.c (debuglf, dump_shell_string, dump_byte_string, dump_var,
do_output_line, extract): Reversed arguments to put_char and
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(cols): New static variable.
(debug): Print context intelligently, fitting into the width of
the screen.
(debug_init): Try to get terminal width, from the COLUMNS variable.
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in debug reporting.
* debug.c (debug): New argument, base.
* debug.h (debug_check): New argument, base.
(debug): Declaration updated.
* eval.c (do_eval): Pass new argument of debug_check as nil.
* match.c (LOG_MISMATCH, LOG_MATCH): Take into account base
when displaying character position.
(do_match_line): Pass base position to debug_check.
(match_files): Pass nil as base to debug_check.
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(debug): In backtrace, show the renaming pairs for unbound
variables (up_p_a_pairs) if they are present.
* debug.h (debug_begin): Renamed to debug_frame.
* eval.c (eval): Wrap debug_begin/debug_end around function dispatch,
so TXR Lisp functions are included in backtraces.
* match.c (h_fun): Follow rename of debug_begin to debug_frame.
Pass in evaluated args, not the original ones.
(v_fun): Likewise.
* unwind.c (uw_push_debug): bindings argument renamed to env.
Bugfix: args argument was being assigned to ub_p_a_pairs.
* unwind.h (struct uw_debug): Member bindings renamed to env.
(uw_push_debug): Declaration updated.
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this is not a constant expression in C.
(debug): Handle the situation here.
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(debug): Some commands changed due to duplicates.
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and used for next/step/finish stepping.
* Makefile (OBJS): debug.o moved to OBJS-y or OBJS-.
(OBJS-y, OBJS-): New variables.
$(PROG): Depends on OBJS-y also.
clean: clean $(OBJS-y).
depend: include $(OBJS-y) in dependency generation.
* configure: Underscores and dashes are interchangeable in
configure variables.
(yaccname_given, yacc_given): Default value is y, not yes.
(debug_support): New config variable.
(CONFIG_DEBUG_SUPPORT): New config.h symbol.
* debug.c (debug_depth): New global variable.
(debug_block_s): New symbol variable.
(next_depth): New static variable.
(debug): Renamed some commands. Introduced separate next, step
and finish.
(debug_init): debug_block_s initialized.
* debug.h (debug_depth, debug_block_s): Declared.
(debug_enter, debug_leave, debug_return): New macros.
(debug_check, debug_init): Conditionally defined based on
if this is a debug build.
* dep.mk: Regenerated.
* eval.c (eval): Instrumented with debug_enter, debug_leave,
debug_return.
* match.c (match_line, v_fun, match_files): Likewise.
* txr.c (txr_main): Bail if -d or --debug used in build
that lacks debug support.
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than nil, otherwise hitting enter tries to repeat the nil command.
(show_bindings): New function. Prints all levels of bindings.
(debug): Flip the corresponding print flags after printing the current
form or data, so they are not printed for every prompt.
On EOF from standard input, substitute the q command.
If enter is hit and there is no last command, just re-print the prompt.
The v command uses show_bindings to dump the environment.
* eval.c (eval): When calling debug_check, pass the env objects, rather
than the bindings it contains.
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Enter stopped working. This was broken by recent bugfixes in the
string splitting functions, which introduced a semantics change.
* eval.c (flip_s, vecref_s): New symbol variables.
(op_modplace): New places (vecref ...) and (flip ...). Bugfix: dec
operator was incrementing.
(expand_place): Handle vecref and flip. Bugfix: pop has no
third argument and so is now handled by the same case as flip.
Bugfix: if a modify form has no third argument, then do not
resynthesize it with a nil third argument.
(eval_init): Initialize new symbol variables.
Register new flip operator. Register new list_vectory function
as intrinsic.
* lib.c (rplacd): When modifying the cdr field of a lazy cons,
then lapse the lazy function to nil! This is needed by user-defined
lazy conses, and it makes sense to do it this way rather than
put in some explicit interface.
(list_vector): New function.
* lib.h (list_vector): Declared.
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the sequencing! Making it an inline function broke the tests.
But we can't have multiple evaluation either, so it's going to use
a temporary lexical variable.
(uses_or2): Macro which declares the lexical variable needed by or2.
* debug.c (debug): add uses_or2.
* eval.c (eval_intrinsic, op_modplace): Likewise.
* lib.c (lazy_str, lazy_str_force_upto, lazy_str_get_trailing_list):
Likewise.
* match.c (h_parallel, v_freeform, v_parallel, v_output): Likewise.
* parser.y (unquotes_occur): Likewise.
* stream.c (format): Likewise.
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Implemented better way of printing character context.
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* Makefile (OBJS): New object file debug.o.
* dep.mk: Updated.
* match.c (h_fun): Use debug_begin and debug_end macros
to set up a debug frame for backtracing.
(match_line, match_files): Call debug_check to give debugger a chance
to instrument call.
(v_fun): Use debug_begin and debug_end macros to set up a debug frame
for backtracing. Call debug_check to give debugger a chance to
instrument call.
* stream.c (struct strm_ops): New function pointer, flush.
(stdio_maybe_write_error): Wrong word in error message corrected.
(stdio_flush): New static function.
(stdio_ops, pipe_ops): New function entered into tables.
(flush_stream): New function.
* stream.h (flush_stream): Declared.
* txr.c (help): New options documented.
(main): call to debug_init added. New debug options parsed and
opt_debugger set accordingly.
* unwind.c (uw_push_debug, uw_current_frame): New function.
* unwind.h (uw_frtype): New enumeration member UW_DBG.
(struct uw_debug): New frame variant.
(union uw_frame): New member, db.
(uw_push_debug, uw_current_frame): Declared,
* debug.c: New file.
* debug.h: New file.
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