1
0
mirror of git://git.gnupg.org/gnupg.git synced 2024-12-24 10:39:57 +01:00

98 Commits

Author SHA1 Message Date
Werner Koch
21fc089148
Silence compiler warnings new with gcc 8.
* dirmngr/dns.c: Include gpgrt.h.  Silence -Warray-bounds also gcc.
* tests/gpgscm/scheme.c: Include gpgrt.h.
(Eval_Cycle): Ignore -Wimplicit-fallthrough.
--

The funny use of case and labels in the CASE macro seems confuse the
fallthrough detection.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-12-18 09:11:53 +01:00
Justus Winter
6e596b2a74
gpgscm: Fix -Wimplicit-fallthrough warnings.
* tests/gpgscm/scheme.c (CASE): Rearrange so that the case statement
is at the front.
(Eval_Cycle): Improve fallthrough annotations.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-08-21 14:49:29 +02:00
Justus Winter
4c8be58fd4
gpgscm: Improve error reporting.
* tests/gpgscm/init.scm (throw'): Guard against 'args' being atomic.
* tests/gpgscm/scheme.c (Eval_Cycle): Remove any superfluous colons in
error messages.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-06-19 16:51:28 +02:00
Justus Winter
aae50e0b6a
gpgscm: Fix checking for opcode arguments.
* tests/gpgscm/scheme.c (Eval_Cycle): Update 'pcd' after dispatching
an instruction.

Fixes-commit: 9c6407d17e0cb9f4a370b1b83e7816577ec7d29d
Signed-off-by: Justus Winter <justus@g10code.com>
2017-05-17 16:13:26 +02:00
Justus Winter
8a168a6d40
gpgscm: Create and re-use frame objects.
* tests/gpgscm/scheme-private.h (struct scheme): New field
'frame_freelist'.
* tests/gpgscm/scheme.c (enum scheme_types): New type 'T_FRAME'.
(type_to_string): Handle new type.
(settype): New macro.
(gc_disable): Make sure there is at least one frame in the free list.
(mark): Handle frame objects.
(finalize_cell): Likewise.
(dump_stack_initialize): Initialize free list.
(dump_stack_free): Simplify.
(frame_length): New variable.
(dump_stack_make_frame): New function.
(frame_slots): Likewise.
(frame_payload): New macro.
(dump_stack_allocate_frame): New function.
(dump_stack_deallocate_frame): Likewise.
(dump_stack_preallocate_frame): Likewise.
(_s_return): Unpack frame object and deallocate it.
(s_save): Wrap state in an frame object.
(dump_stack_mark): Mark the free list.
--

TinySCHEME being a SECD-machine needs to push frames onto the dump
stack.  Previously, the dump stack was a list.  This required four
cells for the spine, as well as up to one additional cell to encode
the current opcode.  This was quite inefficient despite the fact that
we recovered the spine as well as the integer cell.

We introduce frame objects, which are a special variant of vectors of
length four.  Since the length is fixed, this frees up the length
field of the vector object to store the unboxed opcode.  A frame
object now fits in two cells.

Saving two or three cells is a mere byproduct, the performance gain
comes from increased locality, unboxed opcode representation, and the
ability to easily put the objects in a free list, keeping the garbage
collector out of the continuous motion of the virtual machine.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-05-03 15:36:16 +02:00
Justus Winter
9c6407d17e
gpgscm: Merge opexe_0.
* tests/gpgscm/scheme-private.h (struct scheme): Remove field 'op'.
* tests/gpgscm/scheme.c (opexe_0): Inline into 'Eval_Cycle'.
(_Error_1): Return the opcode to evaluate next.
(Error_1): Do not return, but set the opcode and goto dispatch.
(Error_0): Likewise.
(s_goto): Likewise.
(s_return): Likewise.
(s_return_enable_gc): Likewise.
(s_thread_to): Remove superfluous cast.
(_s_return): Return the opcode to evaluate next.
(scheme_init_custom_alloc): Adapt to removal of field 'op'.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-05-03 15:31:55 +02:00
Justus Winter
d2f6798621
gpgscm: Refactor cell finalization.
* tests/gpgscm/scheme.c (finalize_cell): Use switch, return whether
the cell may be freed.
(gc): Update callsite.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-24 16:00:53 +02:00
Justus Winter
4aab0e6ac7
gpgscm: Improve syntax checking.
* tests/gpgscm/scheme.c (opexe_0): Make sure closure arguments are
symbols.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-24 15:47:27 +02:00
Justus Winter
245860ecaf
gpgscm: Avoid fruitless garbage collection cycles.
* tests/gpgscm/scheme-private.h (CELL_MINRECOVER): New macro.
* tests/gpgscm/scheme.c (_get_cell): Move the heuristic to get more
cells...
(gc): ... here where every caller benefits from the optimization.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-24 14:14:01 +02:00
Justus Winter
1b6adab41d
gpgscm: Fix opcode dispatch.
* tests/gpgscm/scheme.c (opexe_0): Consider 'op', not 'sc->op'.  The
former is the opcode we are currently executing.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:36 +02:00
Justus Winter
c7f0d90592
gpgscm: Mmap script files.
* tests/gpgscm/main.c (load): Try to mmap the script.
* tests/gpgscm/scheme.c (scheme_load_memory): New function, a
generalization of 'scheme_load_string'.
* tests/gpgscm/scheme.h (scheme_load_memory): New prototype.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:35 +02:00
Justus Winter
f3d1f68677
gpgscm: Refactor checking for opcode arguments.
* tests/gpgscm/scheme.c (op_code_info): Fix type, add forward
declaration.
(check_arguments): New function.
(Eval_cycle): Use the new function.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:33 +02:00
Justus Winter
b628e62b5b
gpgscm: Improve syntax dispatch.
* tests/gpgscm/scheme.c (assign_syntax): Add opcode parameter, store
opcode in the tag.
(syntaxnum): Add sc parameter, retrieve opcode from tag.
(opexe_0): Adapt callsite.
(scheme_init_custom_alloc): Likewise.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:32 +02:00
Justus Winter
a1ad5d6a30
gpgscm: Make tags mandatory.
* tests/gpgscm/opdefines.h: Make tags mandatory.
* tests/gpgscm/scheme.c: Likewise.
* tests/gpgscm/scheme.h: Likewise.
--

Tags provide a constant-time lookup mechanism for almost every object.
This is useful for the interpreter itself, and the code for tags is
tiny.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:30 +02:00
Justus Winter
e1bb9326dc
gpgscm: Add and use opcode for reversing a list in place.
* tests/gpgscm/lib.scm (string-split-pln): Use 'reverse!'.
(string-rtrim): Likewise.
* tests/gpgscm/opdefines.h (reverse!): New opcode.
* tests/gpgscm/scheme.c (opexe_0): Handle new opcode.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:28 +02:00
Justus Winter
3e91019a92
gpgscm: Deduplicate code.
* tests/gpgscm/scheme.c (oblist_add_by_name): Deduplicate.
(new_slot_spec_in_env): Likewise.

Fixes-commit: 6a3f857224eab108ae38e6259194b01b0ffdad8b
Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:27 +02:00
Justus Winter
7dff6248bd
gpgscm: Move dispatch table into rodata.
* tests/gpgscm/opdefines.h: Use 0 instead of NULL.
* tests/gpgscm/scheme.c (op_code_info): Use char arrays instead of
pointers, make arity parameters smaller.
(INF_ARG): Adapt.
(_OP_DEF): Likewise.
(dispatch_table): Likewise.
(procname): Likewise.
(Eval_cycle): Likewise.
(scheme_init_custom_alloc): Likewise.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:25 +02:00
Justus Winter
6f217d116d
gpgscm: Use more threaded code.
* tests/gpgscm/scheme.c (opexe_0): Use 's_thread_to' instead of
's_goto' wherever possible.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:24 +02:00
Justus Winter
e7ed9822e2
gpgscm: Remove now obsolete dispatcher function from the opcodes.
* tests/gpgscm/opdefines.h: Remove now obsolete dispatcher function
from the opcodes.
* tests/gpgscm/scheme-private.h (_OP_DEF): Adapt.
* tests/gpgscm/scheme.c (dispatch_func): Remove type declaration.
(op_code_info): Remove 'func'.
(_OP_DEF): Adapt.
(Eval_Cycle): Always call 'opexe_0'.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:22 +02:00
Justus Winter
ddf444828b
gpgscm: Merge 'opexe_6'.
* tests/gpgscm/scheme.c (opexe_6): Merge into 'opexe_0'.
* tests/gpgscm/opdefines.h: Adapt.
--

Having separate functions to execute opcodes reduces our ability to
thread the code and prevents the dispatch_table from being moved to
rodata.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:21 +02:00
Justus Winter
1379df4453
gpgscm: Merge 'opexe_5'.
* tests/gpgscm/scheme.c (opexe_5): Merge into 'opexe_0'.
* tests/gpgscm/opdefines.h: Adapt.
--

Having separate functions to execute opcodes reduces our ability to
thread the code and prevents the dispatch_table from being moved to
rodata.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:19 +02:00
Justus Winter
4f835104b9
gpgscm: Merge 'opexe_4'.
* tests/gpgscm/scheme.c (opexe_4): Merge into 'opexe_0'.
* tests/gpgscm/opdefines.h: Adapt.
--

Having separate functions to execute opcodes reduces our ability to
thread the code and prevents the dispatch_table from being moved to
rodata.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:18 +02:00
Justus Winter
d591ab65d3
gpgscm: Merge 'opexe_3'.
* tests/gpgscm/scheme.c (opexe_3): Merge into 'opexe_0'.
* tests/gpgscm/opdefines.h: Adapt.
--

Having separate functions to execute opcodes reduces our ability to
thread the code and prevents the dispatch_table from being moved to
rodata.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:16 +02:00
Justus Winter
6cad38228f
gpgscm: Merge 'opexe_2'.
* tests/gpgscm/scheme.c (opexe_2): Merge into 'opexe_0'.
* tests/gpgscm/opdefines.h: Adapt.
--

Having separate functions to execute opcodes reduces our ability to
thread the code and prevents the dispatch_table from being moved to
rodata.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:15 +02:00
Justus Winter
154af876f0
gpgscm: Merge 'opexe_1'.
* tests/gpgscm/scheme.c (opexe_1): Merge into 'opexe_0'.
* tests/gpgscm/opdefines.h: Adapt.
--

Having separate functions to execute opcodes reduces our ability to
thread the code and prevents the dispatch_table from being moved to
rodata.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-10 14:57:13 +02:00
Justus Winter
8640fa880d
gpgscm: Allocate small integers in the rodata section.
* tests/gpgscm/Makefile.am (gpgscm_SOURCES): Add new file.
* tests/gpgscm/scheme-private.h (struct cell): Move number to the top
of the union so that we can initialize it.
(struct scheme): Remove 'integer_segment'.
* tests/gpgscm/scheme.c (initialize_small_integers): Remove function.
(small_integers): New variable.
(MAX_SMALL_INTEGER): Compute.
(mk_small_integer): Adapt.
(mark): Avoid marking objects already marked.  This allows us to run
the algorithm over objects in the rodata section if they are already
marked.
(scheme_init_custom_alloc): Remove initialization.
(scheme_deinit): Remove deallocation.
* tests/gpgscm/small-integers.h: New file.
--

Allocate small integers from a fixed pool in the rodata section.  This
spares us the initialization, and deduplicates integers across
different processes.  It also makes the integers immutable, increasing
memory safety.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-07 13:50:20 +02:00
Justus Winter
c9c3fe8832
gpgscm: Make global data constant when possible.
* tests/gpgscm/scheme-private.h (struct scheme): Make 'vptr' const.
* tests/gpgscm/scheme.c (num_zero): Statically initialize and turn
into constant.
(num_one): Likewise.
(charnames): Change type so that it can be stored in rodata.
(is_ascii_name): Adapt slightly.
(assign_proc): Make argument const char *.
(op_code_info): Make some fields const char *.
(tests): Make const.
(dispatch_table): Make const.  At least it can be made read-only after
relocation.
(Eval_Cycle): Adapt slightly.
(vtbl): Make const.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-07 13:11:31 +02:00
Justus Winter
56638c28ad
gpgscm: Remove arbitrary limit on number of cell segments.
* tests/gpgscm/scheme-private.h (struct scheme): Remove fixed-size
arrays for cell segments, replace them with a pointer to the new
'struct cell_segment' instead.
* tests/gpgscm/scheme.c (struct cell_segment): New definition.
(_alloc_cellseg): Allocate the header within the segment, return a
pointer to the header.
(_dealloc_cellseg): New function.
(alloc_cellseg): Insert the segments into a list.
(_get_cell): Allocate a new segment if less than a quarter of
CELL_SIGSIZE is recovered during garbage collection.
(initialize_small_integers): Adapt callsite.
(gc): Walk the list of segments.
(scheme_init_custom_alloc): Remove initialization of removed field.
(scheme_deinit): Adapt deallocation.
--

Previously the number of cells that could be allocated was a
compile-time limit.  Remove this limit.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-07 13:11:30 +02:00
Justus Winter
f1dc34f502
gpgscm: Avoid mutating integer.
* tests/gpgscm/scheme.c (opexe_5): Do not modify the integer in-place
while printing an vector.  Integer objects may be shared, so they must
not be mutated.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-06 16:24:49 +02:00
Justus Winter
b83903f59e
gpgscm: Initialize unused slots in vectors.
* tests/gpgscm/scheme.c (get_vector_object): Initialize unused slots
at the end of vectors.
--

They should not be used for anything, but let's just initialize them
to something benign to be sure.

GnuPG-bug-id: 3014
Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-06 16:21:48 +02:00
Justus Winter
6261611d37
gpgscm: Fix copying values.
* tests/gpgscm/scheme.c (copy_value): New function.
(mk_tagged_value): Use new function.
(opexe_4): Likewise for OP_SAVE_FORCED.
--

Occasionally, we need to copy a value from one location in the storage
to another.  Scheme objects are fine.  Some primitive objects,
however, require finalization, usually to free resources.

For these values, we either make a copy or acquire a reference.

Fixes e.g. a double free if a delayed expression evaluating to a
string is forced.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-04 18:48:51 +02:00
Justus Winter
a80d4a9b50
gpgscm: Simplify get-output-string operation.
* tests/gpgscm/scheme.c (opexe_4): Simplify 'get-output-string'.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-04 18:19:35 +02:00
Justus Winter
d858096c99
gpgscm: Simplify substring operation.
* tests/gpgscm/scheme.c (opexe_2): Simplify 'substring'.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-04 15:04:42 +02:00
Justus Winter
90932bdad6
gpgscm: Slightly improve the procedure dispatch.
* tests/gpgscm/scheme.c (procnum): Procedures always have an integer
number, so we can safely use the cheaper 'ivalue_unchecked'.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-04-03 11:53:19 +02:00
Justus Winter
6a3f857224
gpgscm: Simplify hash tables.
* tests/gpgscm/scheme.c (oblist_add_by_name): We now always get a
slot.  Simplify accordingly.
(oblist_find_by_name): Always return the slot.
(vector_elem_slot): New function.
(new_slot_spec_in_env): We now always get a slot.  Remove parameter
'env'.  Simplify accordingly.
(find_slot_spec_in_env): Always return a slot.
(new_slot_in_env): Adapt callsite.
(opexe_0): Likewise.
(opexe_1): Likewise.
(scheme_define): Likewise.
--

Now that the ill-devised immediate values framework is gone, there is
no need to tag the pointers in vectors anymore.  Therefore, we can
always return a pointer to the slot in the hash table lookup
functions.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-03-17 10:35:25 +01:00
Justus Winter
38c955599f
gpgscm: Remove framework for immediate values.
* tests/gpgscm/scheme.c (IMMEDIATE_TAG): Remove macro.
(is_immediate): Likewise.
(set_immediate): Likewise.
(clr_immediate): Likewise.
(enum scheme_types): Set the LSB in every value.
(fill_vector): Adapt.
(vector_elem): Likewise.
(set_vector_elem): Likewise.
(mark): Likewise.
(gc): Test for the LSB to tell typeflags apart from pointers stored in
the same memory location.
--

Supporting immediate values would require invasive changes to the
interpreter and is likely not worth the trouble.  On the other hand,
tagging pointers in vectors complicated the hash table implementation
needlessly.  Therefore, I remove this again.

This fixes a crash on big endian architectures.

GnuPG-bug-id: 2996
Signed-off-by: Justus Winter <justus@g10code.com>
2017-03-17 10:34:15 +01:00
Michael Haubenwallner
c22a2a89d3
gpgscm: Use system strlwr if available.
* tests/gpgscm/scheme.c: Define local strlwr only when HAVE_STRLWR is
not defined in config.h.
* tests/gpgscm/scheme-config.h: Remove hack.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-03-07 14:33:27 +01:00
Justus Winter
e4583ae14e
gpgscm: Improve parsing.
* tests/gpgscm/scheme.c (port_increment_current_line): Avoid creating
the same integer if the delta is zero.  This happens a lot during
parsing, and puts pressure on the memory allocator.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-02-28 16:19:18 +01:00
Justus Winter
058c97f9fc
gpgscm: Fix calculating the line number.
* tests/gpgscm/scheme.c (opexe_5): Only increment the line number on
newlines.

Fixes-commit: 7cc57e2c63d0fa97569736419db5c76117e7685b
Signed-off-by: Justus Winter <justus@g10code.com>
2017-02-28 16:17:33 +01:00
Justus Winter
7cc57e2c63
gpgscm: Track source locations in every kind of ports.
* tests/gpgscm/scheme-private.h (struct port): Move location
information out of the union.
* tests/gpgscm/scheme.c (mark): All ports need marking now.
(gc): Likewise all ports on the load stack.
(port_clear_location): Adapt accordingly.  Also, add an empty function
for !SHOW_ERROR_LINE.
(port_increment_current_line): Likewise.
(port_reset_current_line): Drop function in favor of...
(port_init_location): ... this new function.
(file_push): Simplify.
(file_pop): Likewise.
(port_rep_from_filename): Likewise.
(port_rep_from_file): Likewise.
(port_rep_from_string): Also initialize the location.
(port_rep_from_scratch): Likewise.
(port_close): Simplify and generalize.
(skipspace): Likewise.
(token): Likewise.
(_Error_1): Generalize.
(opexe_5): Likewise.
(scheme_deinit): Simplify and generalize.
(scheme_load_named_file): Likewise.
(scheme_load_string): Also initialize the location.
--
This change tracks the location of source code loaded from non-file
ports that is used in error messages.  It also simplifies the code
quite a bit.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-02-28 10:00:29 +01:00
Justus Winter
2e78aa6ff7 gpgscm: Tune the hash tables.
* tests/gpgscm/scheme.c (oblist_initial_value): Increase the size of
the hash table based on the number of symbols used after initializing
the interpreter.
(new_frame_in_env): Increase the size of the hash table based on the
number of variables in the global environement.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-01-31 18:49:27 +01:00
Justus Winter
b85d509a8f gpgscm: Optimize environment lookups and insertions.
* tests/gpgscm/scheme.c (pointercmp): New function.
(new_slot_spec_in_env): Add and use slot for insertions.
(find_slot_spec_in_env): New variant of 'find_slot_in_env' that
returns the slot on failures.
(find_slot_in_env): Express using the new function.
(new_slot_in_env): Update callsite.
(opexe_0): Optimize lookup-or-insert.
(opexe_1): Likewise.
(scheme_define): Likewise.
--
Optimize environment lookups by keeping the lists in the hash table or
the list sorted.  Optimize the insertions by passing the slot computed
by the lookup to the insertion.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-01-31 18:49:27 +01:00
Justus Winter
874424ee3c gpgscm: Fix build with list environments.
* tests/gpgscm/scheme.c (new_slot_spec_in_env): Provide preallocation
inforomation if USE_ALIST_ENV.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-01-31 18:49:27 +01:00
Justus Winter
cea6d114b6 gpgscm: Optimize symbol lookups and insertions.
* tests/gpgscm/scheme.c (oblist_find_by_name): Keep the list of
symbols sorted, return the slot where a new symbol must be inserted on
lookup failures.
(oblist_add_by_name): Add the new symbol at the given slot.
(mk_symbol): Adjust callsite.
(gensym): Likewise.
(assign_syntax): Likewise.
--
Optimize symbol lookups by keeping the lists in the hash table (or the
list if compiled with USE_OBJECT_LIST) sorted by the symbol names.
Optimize the insertions by passing the slot computed by the lookup to
the insertion.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-01-31 18:49:27 +01:00
Justus Winter
8f0ecb16cb gpgscm: Fix build with object list.
* tests/gpgscm/scheme.c (oblist_add_by_name): Provide preallocation
information if USE_OBJECT_LIST.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-01-31 18:49:27 +01:00
Justus Winter
2076cdaf6b gpgscm: Remove unused functions.
* tests/gpgscm/scheme.c (check_cell_alloced): Remove function.
(check_range_alloced): Likewise.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-01-31 18:49:27 +01:00
Justus Winter
49e2ae65e8 gpgscm: Use a compact vector representation.
* tests/gpgscm/scheme-private.h (struct cell): Add a compact vector
representation.
* tests/gpgscm/scheme.c (vector_length): Use new representation.
(vector_size): New macro.
(get_vector_object): Use the new representation.
(fill_vector): Likewise.
(vector_elem): Likewise.
(set_vector_elem): Likewise.
(mark): Likewise.
(gc): Likewise.  Be careful not to confuse immediate values for type
flags.
(finalize_cell): Vectors now require finalization.
--

Previously, vectors were represented using consecutive cons cells,
wasting one word per cell for the type information.  Fix that by using
a flat array.

Previously, a vector of size N required 1 + (n + 1) / 2 cells.  Now it
uses 1 + (n - 1 + 2) / 3 cells.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-01-30 18:21:24 +01:00
Justus Winter
e343984fc5 gpgscm: Provide framework for immediate values.
* tests/gpgscm/scheme.c (IMMEDIATE_TAG): New macro.
({is,set,clr}_immediate): Likewise.
(enum scheme_types): Make type tags disjoint from immediate values.
(TYPE_BITS): We need one more bit now.
(ADJ,T_MASKTYPE): Compute values.
--
Immediate values are disjoint from all type tags and pointers,
allowing us to store immediate values in all memory locations.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-01-30 17:09:41 +01:00
Justus Winter
d27a4435bd gpgscm: Fix setting the line of the first gc reservation.
* tests/gpgscm/scheme.c (_gc_disable): Negate guard.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-01-30 17:09:41 +01:00
Justus Winter
489edf84c9 gpgscm: Introduce macro for the vector length.
* tests/gpgscm/scheme.c (vector_length): New macro.
(get_vector_object): Use the new macro.
(oblist_add_by_name): Likewise.
(oblist_find_by_name): Likewise.
(oblist_all_symbols): Likewise.
(mk_vector): Likewise.
(mark): Likewise.
(new_slot_spec_in_env): Likewise.
(find_slot_spec_in_env): Likewise.
(opexe_2): Likewise.
(opexe_5): Likewise.
--

Introducing an abstraction reduces the coupling between code using
vectors and the implementation of vectors.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-01-30 16:24:01 +01:00