In most cases, find_char_unquote has a single stopchar. In that
case we can look for it using strchr's optimized implementation.
This saves 3.5% on QEMU's noop build (from 11.78s to 11.37s).
* read.c (find_char_unquote): Rename to find_map_unquote. Replace
with an implementation optimized for the case where the stopchar
is a singleton. Adjust all callers.
collapse_continuations is already using strchr to speed up the
common case of no backslash-newline sequence, but on modern
processors it is faster to scan the string twice with
strchr+memmove (or strlen+memmove) than to move bytes manually.
Saves about 1.5% on QEMU's no-op build (from 11.37s to 11.23s).
* misc.c (collapse_continuations): Rewrite the scanning of LINE.
It has been proposed that glibc glob start using gl_lstat,
which the API allows it to do. GNU 'make' should not get in
the way of this. See:
https://sourceware.org/ml/libc-alpha/2017-09/msg00409.html
* dir.c (local_lstat): New function, like local_stat.
(dir_setup_glob): Use it to initialize gl_lstat too, as the API
requires.
* job.c (load_too_high): If /proc/loadavg is available, compare the
maximum load against the number of processes currently running. If
we can't parse /proc/loadavg, use the previous algorithm.
Concept and initial patch from Sven C. Dack <sven.c.dack@sky.com>
* job.c (unblock_sigs): Only unblock fatal signals not all signals.
(unblock_all_sigs): Unblock all signals not just fatal signals.
(child_execute_job): Call unblock_all_sigs() in child process.
* job.h: Remove unused function definitions.
* remote-cstms.c (start_remote_job): Call unblock_all_sigs() in
child process.
Reported by Koen Van Hoof <koen.van_hoof@nokia.com>
* variable.c (do_variable_definition): If $SHELL was not found,
process "SHELL=foo" as any other variable definition. This avoids
segfaults when SHELL=foo is specified on the Make command line.
Reported by Orgad Shaneh <orgads@gmail.com>.
* posixos.c (set_blocking): Set blocking on a file descriptor.
(jobserver_setup): Set non-blocking on the jobserver read side.
(jobserver_parse_auth): Ditto.
(jobserver_acquire_all): Set blocking to avoid a busy-wait loop.
(jobserver_acquire): If the non-blocking read() returns without
taking a token then try again.
* variable.h (enum variable_flavor: Add a new flavor for appended
values that shouldn't be expanded.
* variable.c (do_variable_definition): If given this new flavor,
do not expand the value before appending it.
* read.c (eval_makefile): Use this new flavor for MAKEFILE_LIST
* tests/scripts/variables/MFILE_LIST: Test filenames containing '$'.
* doc/make.texi (Appending): Document this behavior.
* variable.c (do_variable_definition): Only add a space if the variable
value is not empty.
* tests/scripts/variables/flavors: Test this behavior.
* makeint.h: Change OUT_OF_MEM() macro to out_of_memory() function.
* output.h, job.h: Move FD_* macros from job.h to output.h.
* output.c (output_write): Write a buffer to an FD directly.
(out_of_memory): Use output_write() to avoid allocating more
memory while writing the error, and call exit() instead of die().
This does mean we can't translate the error string, though.
* misc.c (xmalloc, xcalloc, xrealloc, xstrdup, xstrndup): Call new
out_of_memory() rather than OUT_OF_MEM().
* read.c (parse_file_seq): Ditto.
* main.c (main): Sanitize program name detection on Windows.
* makeint.h: 'program' is a const string on all platforms now.
* tests/run_make_tests.bat: Windows bat file to invoke tests
* tests/test_driver.pl: Obtain system-specific error messages.
(get_osname): Compute the $port_type here. Add more $osname checks
for different Windows Perl ports.
(_run_command): Rewrite the timeout capability to work properly
with Windows. Don't use Perl fork/exec; instead use system(1,...)
which allows a more reliable/proper kill operation.
Also, allow options to be given as a list instead of a string, to
allow more complex quoting of command-line arguments.
* tests/run_make_tests.pl (run_make_with_options): Allow options
to be provided as a list in addition to a simple string.
(set_more_defaults): Write sample makefiles and run make on them
instead of trying to run echo and invoking make with -f-, to avoid
relying on shell and echo to get basic configuration values. Also
create a $sh_name variable instead of hard-coding /bin/sh.
* tests/scripts/features/archives: Skip on Windows.
* tests/scripts/features/escape: Use list method for passing options.
* tests/scripts/features/include: Use system-specific error messages.
* tests/scripts/features/output-sync: "Command not found" errors
generate very different / odd output on Windows. This needs to be
addressed but for now disable these tests on Windows.
* tests/scripts/functions/abspath: Disable on Windows.
* tests/scripts/functions/file: Use system-specific error messages.
* tests/scripts/functions/shell: "Command not found" errors generate
very different / odd output on Windows. This needs to be addressed
but for now disable these tests on Windows.
* tests/scripts/misc/close_stdout: Disable on Windows.
* tests/scripts/options/dash-k: Use system-specific error messages.
* tests/scripts/options/dash-l: Disable on Windows.
* tests/scripts/options/eval: Use list method for passing options.
* tests/scripts/options/general: Skip some non-portable tests.
* tests/scripts/targets/ONESHELL: Skip some non-portable tests.
* tests/scripts/targets/POSIX: Skip some non-portable tests.
* tests/scripts/variables/MAKEFILES: Skip some non-portable tests.
* tests/scripts/variables/SHELL: Use a makefile not -f- for testing.
* job.c (reap_children) [WINDOWS32]: Avoid recursive call to
reap_children when the argument passed to
map_windows32_error_to_string is negative or too large.
* make.1: Document the -E and --eval options.
* doc/make.texi: Document the -E option.
* tests/scripts/options/eval: Test the -E option and MAKEFILES.
* NEWS: Add information about the new option.
* make.1: Document the new flag.
* doc/make.texi: Document the new flag. Remove suggestions that the
.SILENT special target is deprecated or should not be used.
* tests/scripts/options/dash-s: Test the -s and --no-silent options.
* NEWS: Add information about the new option.
* read.c (eval_makefile): Set deps->error if we discovered any
error reading makefiles, and set NONEXISTENT_MTIME so we know
it needs to be rebuilt.
* main.c (main): Clean up management of makefile_mtimes.
* tests/scripts/features/include: Add open failure testcases.
* tests/test_driver.pl: Save error strings for later comparison.
* tests/run_make_tests.pl: Create portable commands for later use.
* tests/*: Use these new variables.
* NEWS: Document the change, as a backward-incompatible change.
* main.c (main): Add 'nocomment' to the .FEATURES variable.
* read.c (remove_comments): Skip variable references during remove.
(find_char_unquote): Fix comments for new STOPMAP support.
* tests/scripts/features/escape: Test new escape syntax.
* tests/scripts/functions/guile: Ditto.
* tests/scripts/functions/shell: Ditto.
