* libguile/vm.c (vm_increase_sp): New interface, to increase the SP to
some new level, possibly expanding the stack.
(vm_push_sp, vm_restore_sp): Intefaces to vm_increase_sp.
(vm_return_to_continuation): Don't throw an error if there's not
enough space; instead, expand.
(vm_reinstate_partial_continuation): Use the new helper.
(return_unused_stack_to_os): Avoid off-by-one error (sp points to
valid memory.)
(scm_call_n): Never write beyond the sp.
* module/system/repl/server.scm (run-server): Remove case that handled
'interrupt' exceptions specially. It is no longer needed since
e6c8e6047e (REPL Server: Don't establish
a SIGINT handler.)
* module/ice-9/boot-9.scm (define-values): Use 'generate-temporaries' to
generate a fresh name for 'dummy', to work around the lack of hygiene
for macro-introduced toplevel identifiers. Blackhole 'dummy' to avoid
keeping garbage alive. Add more comments.
* module/language/cps.scm ($callk): New expression type, for calls to
known labels. Part of "low CPS".
* module/language/cps/arities.scm:
* module/language/cps/closure-conversion.scm:
* module/language/cps/compile-bytecode.scm:
* module/language/cps/dce.scm:
* module/language/cps/dfg.scm:
* module/language/cps/effects-analysis.scm:
* module/language/cps/simplify.scm:
* module/language/cps/slot-allocation.scm:
* module/language/cps/verify.scm: Adapt call sites.
* libguile/vm-engine.c (call-label, tail-call-label): New instructions.
Renumber the rest; this is an ABI change.
* libguile/_scm.h (SCM_OBJCODE_MINOR_VERSION):
* module/system/vm/assembler.scm (*bytecode-minor-version*): Bump.
* doc/ref/compiler.texi (CPS in Guile): Document $callk.
* libguile/gc.c: Remove code that would try to run GC more frequently as
the process image size was increasing. Before, it was often the case
that the heap was the main component of image size, but with
expandable stacks and statically allocated data that is no longer
true. Also, once scm_gc_register_allocation was incorporated, we
don't need to be so conservative any more. It seems this code was
simply causing too many gc's to run. Removing it improves some
micro-benchmarks; time will tell.
* libguile/bdw-gc.h: Remove a needless compatibility hack.
* libguile/gc-inline.h: New file, implementing thread-local freelists
providing faster allocation if we already have a scm_i_thread*
pointer. Based on gc_inline.h from libgc.
* libguile/threads.h (scm_i_thread): Add freelists here.
* libguile/threads.c (guilify_self_1, guilify_self_2): Initialize
freelists.
* libguile/vm.c: Include gc-inline.h.
* libguile/vm-engine.c: Rename current_thread to thread. Use
scm_inline_cons instead of scm_cons, scm_inline_cell instead of
scm_cell, and scm_inline_words instead of words.
* libguile/vm.h (struct scm_vm): Reorder fields. Add "sp_max_since_gc"
field.
* libguile/vm-engine.c (ALLOC_FRAME, RESET_FRAME):
* libguile/vm.c (vm_return_to_continuation)
(vm_reinstate_partial_continuation, scm_call_n): In places where we
could increase the stack height, update sp_max_since_gc.
(vm_expand_stack): Relocate sp_max_since_gc on expansion.
(scm_bootstrap_vm): Record the page size using gnulib's getpagesize.
(return_unused_stack_to_os): New routine, run when marking stacks.
* libguile/vm-engine.c: Remove VM_HANDLE_INTERRUPTS before entering a
subr or foreign call. The bytecode stub will have already done so
when entering the stub, and the return sequence handles doing so
before returning.
* module/system/vm/trace.scm (print-return): Remove frame argument.
(trace-calls-to-procedure, trace-calls-in-procedure): Adapt callers.
* module/system/vm/traps.scm (trap-in-procedure, trap-frame-finish):
(trap-calls-to-procedure): Since the pop continuation hook is now
called after the continuation is popped, we need to check the right
frame. Fixes tail-calls in the trace root, and probably other things.
* module/language/cps/slot-allocation.scm (lookup-dead-slot-map)
(allocate-slots): For each non-tail call in a function, compute the
set of slots that are dead after the function has begun the call.
* module/language/cps/compile-bytecode.scm (compile-fun): Emit the
`dead-slot-map' macro instruction for non-tail calls.
* module/system/vm/assembler.scm (<asm>): Add `dead-slot-maps' member.
(dead-slot-map): New macro-instruction.
(link-frame-maps, link-dynamic-section, link-objects): Write dead
slots information into .guile.frame-maps sections of ELF files.
* module/system/vm/elf.scm (DT_GUILE_FRAME_MAPS): New definition.
* libguile/loader.h:
* libguile/loader.c (DT_GUILE_FRAME_MAPS, process_dynamic_segment):
(load_thunk_from_memory, register_elf): Arrange to parse
DT_GUILE_FRAME_MAPS out of the dynamic section.
(find_mapped_elf_image_unlocked, find_mapped_elf_image): New helpers.
(scm_find_mapped_elf_image): Refactor.
(scm_find_dead_slot_map_unlocked): New interface.
* libguile/vm.c (scm_i_vm_mark_stack): Mark the hottest frame
conservatively, as before. Otherwise use the dead slots map, if
available, to avoid marking data that isn't live.
* module/ice-9/boot-9.scm:
* module/ice-9/i18n.scm:
* module/ice-9/poll.scm:
* module/ice-9/popen.scm:
* module/ice-9/r6rs-libraries.scm:
* module/oop/goops.scm:
* module/oop/goops/compile.scm:
* module/oop/goops/dispatch.scm:
* module/srfi/srfi-88.scm:
* module/system/foreign.scm:
* module/texinfo/serialize.scm: Change most uses of 'compile' to
'expand', except where we must avoid it during initial bootstrap
before the module system is loaded. Remove redundant uses of
'compile' where 'expand' is also given. Standardize on the
"(expand load eval)" order of conditions.
* doc/ref/api-macros.texi (Eval When): Explain in detail what each
condition means, including 'expand' which was previously undocumented.
Change the example to use (expand load eval) and recommend that set of
conditions, instead of (compile load eval) which was previously
recommended and shown in the example.
Fixes <http://bugs.gnu.org/14370>.
Reported by Atom X Zane <atomx@deadlyhead.com>.
* module/web/http.scm (write-credentials): Handle the Basic auth scheme
correctly.
* test-suite/tests/web-http.test (pass-if-round-trip): Use
'pass-if-equal' for better error reporting.
("request headers"): Add tests.
* THANKS: Add "Atom X Zane" to bug fix section.
* module/web/http.scm ("Content-Disposition"): Add a parser and
serializer. Defined in RFC2616 section 19.5.1.
* test-suite/tests/web-http.test ("entity headers"): New test case.
Reported by Doug Evans <xdje42@gmail.com>.
* libguile/ports.c (scm_port_conversion_strategy): Don't validate
that 'port' is an open port until after the (port == #f) case
has been handled.
* libguile/r6rs-ports.c (CBIP_BUFFER_SIZE): Adjust comment. Set to 8KiB.
(SCM_SET_CBIP_BYTEVECTOR): New macro.
(cbip_setvbuf): New function.
(make_cbip): Set PORT's 'setvbuf' internal field.
(cbip_fill_input): Check whether PORT is buffered. When unbuffered,
check whether BV can hold C_REQUESTED bytes, and allocate a new
bytevector if not; copy the data back from BV to c_port->read_pos.
Remove 'again' label, and don't loop there.
* test-suite/tests/r6rs-ports.test ("7.2.7 Input Ports")["custom binary
input port unbuffered & 'port-position'", "custom binary input port
unbuffered & 'read!' calls", "custom binary input port, unbuffered
then buffered", "custom binary input port, buffered then unbuffered"]:
New tests.
* doc/ref/api-io.texi (R6RS Binary Input): Document the buffering of
custom binary input ports, and link to 'setvbuf'.
* libguile/ports-internal.h (struct scm_port_internal): Add
setvbuf' field. Change 'pending_eof' to a 1-bit unsigned char.
* libguile/ports.c (scm_new_port_table_entry): Clear 'pti->setvbuf'.
* libguile/fports.c (scm_setvbuf): Accept any open port, and error out
when PORT's setvbuf' field is NULL. Remove explicit 'scm_gc_free' calls.
(scm_i_fdes_to_port): Set PORT's 'setvbuf' field.
* test-suite/tests/ports.test ("setvbuf")["closed port", "string port"]:
New tests.
* doc/ref/posix.texi (Ports and File Descriptors): Suggest that
'setvbuf' works for different port types.
* module/web/http.scm ("Content-Disposition"): Add a parser and
serializer. Defined in RFC2616 section 19.5.1.
* test-suite/tests/web-http.test ("entity headers"): New test case.
* doc/ref/guile.texi (A Sample Guile Main Program): Easier to read
example code and building split into 2 subsections.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Fixes <http://bugs.gnu.org/16463>.
Reported by Sree Harsha Totakura <sreeharsha@totakura.in>.
* libguile/read.c (ENCODING_NAME_MAX_SIZE): New macro.
(SCM_ENCODING_SEARCH_SIZE): Change to 500 + ENCODING_NAME_MAX_SIZE.
(scm_i_scan_for_encoding): Return NULL if there's less than
ENCODING_NAME_MAX_SIZE bytes once "coding: *" has been read.
* test-suite/tests/coding.test ("line
comment")["http://bugs.gnu.org/16463"]: New test.
* module/web/response.scm (make-delimited-input-port): Read at most LEN
bytes from PORT, instead of trying to read more and returning an error
if more is available. Try again when 'get-bytevector-n!' return zero.
* test-suite/tests/web-response.test (example-1): Add garbage after the
body itself.
* libguile/r6rs-ports.c (cbip_fill_input): Throw an exception when
C_OCTETS is greater than what was requested.
* test-suite/tests/r6rs-ports.test ("7.2.7 Input Ports")["custom binary
input port 'read!' returns too much"]: New test.
* module/ice-9/boot-9.scm (%cond-expand-features): Add srfi-46.
* doc/ref/srfi-modules.texi (SRFI-0): Add srfi-46 to the list of core
features.
(SRFI-46): New node.
* doc/ref/api-macros.texi (Syntax Rules): Mention that the custom
ellipsis identifier support is specified by SRFI-46.
* test-suite/tests/syntax.test ("syntax-rules"): Add ellipsis hygiene
test from SRFI-46.
* module/ice-9/boot-9.scm (%cond-expand-features): Add srfi-87.
* doc/ref/srfi-modules.texi (SRFI-0): Add srfi-87 to the list of core
features.
(SRFI-87): New node.
