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gcc/libgfortran/ChangeLog
Janne Blomqvist 16e60fff0b Fix stack overflow crash in getcwd intrinsic. 
2014-05-12  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/61035
	* intrinsics/getcwd.c (getcwd_i4_sub): Avoid potentially large
	stack allocation, avoid extra copying in the common case.

From-SVN: r210335
2014-05-12 22:23:11 +03:00

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2014-05-12 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/61035
* intrinsics/getcwd.c (getcwd_i4_sub): Avoid potentially large
stack allocation, avoid extra copying in the common case.
2014-05-12 Janne Blomqvist <jb@gcc.gnu.org>
* configure.ac (AM_CFLAGS): Use -std=gnu11.
(CFLAGS): Likewise.
* configure: Regenerated.
2014-05-11 Tobias Burnus <burnus@net-b.de>
* caf/libcaf.h (_gfortran_caf_num_images): Change type of
second argument to int.
* caf/mpi.c (_gfortran_caf_num_images): Ditto.
* caf/single.c (_gfortran_caf_num_images): Ditto.
2014-05-08 Tobias Burnus <burnus@net-b.de>
* caf/libcaf.h (caf_vector_t, _gfortran_caf_co_sum,
_gfortran_caf_co_min, _gfortran_caf_co_max): Declare
* caf/single.c
2014-05-06 Jerry DeLisle <jvdelisle@gcc.gnu>
PR libfortran/61049
* io/list_read.c (list_formatted_read_scalar): Use eat_separator
and delete extraneous code.
2014-04-30 Tobias Burnus <burnus@net-b.de>
* caf/libcaf.h (_gfortran_caf_this_image, _gfortran_caf_num_images):
New prototypes.
(_gfortran_caf_init): Change prototype.
(mpi_token_t): New typedef.
(TOKEN): New define.
* caf/mpi.c (_gfortran_caf_this_image, _gfortran_caf_num_images):
New functions.
(_gfortran_caf_init): Update.
(_gfortran_caf_finalize, _gfortran_caf_register,
_gfortran_caf_deregister): Use mpi_token_t.
* caf/single.c (_gfortran_caf_this_image, _gfortran_caf_num_images):
New functions.
(_gfortran_caf_init): Update.
(_gfortran_caf_finalize, _gfortran_caf_register,
_gfortran_caf_deregister): Use mpi_token_t, simplify.
2014-04-26 Jerry DeLisle <jvdelisle@gcc.gnu>
PR libfortran/52539
* io/list_read.c: Add uchar typedef. (push_char4): New function
to save kind=4 character. (next_char_utf8): New function to read
a single UTF-8 encoded character value. (read_chracter): Update
to use the new functions for reading UTF-8 strings.
(list_formatted_read_scalar): Update to handle list directed
reads of UTF-8 strings. (nml_read_obj): Likewise update for
UTF-8 strings in namelists.
* io/write.c (nml_write_obj): Add kind=4 character support for
namelist writes.
2014-04-24 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* configure.ac: Quote usage of ac_cv_func_clock_gettime in if test.
* configure: Regenerate.
2014-04-22 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config/fpu-387.h [__sun__ && __svr4__]: Remove SSE execution
check.
2014-04-11 Jerry DeLisle <jvdelisle@gcc.gnu>
PR libfortran/60810
io/unit.c (is_trim_ok): If internal unit is array, do not trim.
2014-03-21 Jerry DeLisle <jvdelisle@gcc.gnu>
PR libfortran/60148
* io/transfer.c (data_transfer_init): If std= was specified, set
delim status to DELIM_NONE of no other was specified.
2014-03-18 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* configure.ac: Check for presence of fcntl.
* configure: Regenerate.
* config.h.in: Regenerate.
* io/unix.c (set_close_on_exec): Check for HAVE_FCNTL.
2014-03-17 Jerry DeLisle <jvdelisle@gcc.gnu>
PR libfortran/48600
* io/list_read.c (list_formatted_read_scalar): Do not use
eat_separator. Explicitly set the comma and end-of-line flags.
Check for END condition from finish_separator.
2014-03-15 Jerry DeLisle <jvdelisle@gcc.gnu>
PR libfortran/58324
* io/list_read.c (finish_list_read): Read one character to check
for the end of the file. If it is the end, then issue the file
end error message. If not, use eat_line to reach the end
without giving error. The next attempt to read will then
issue the error as described above.
2014-03-12 Jerry DeLisle <jvdelisle@gcc.gnu>
PR libfortran/38199
* io/read.c (read_decimal): Quickly skip spaces to avoid calls
to next_char.
* io/unit.c (is_trim_ok): New helper function to check various
conditions to see if its OK to trim the internal unit string.
(get_internal_unit): Use LEN_TRIM to shorten selected internal
unit strings for optimizing READ. Enable this optimization for
formatted READ.
* io/list_read.c (finish_list_read): Don't call eat_line for
internal units.
2014-03-08 Jerry DeLisle <jvdelisle@gcc.gnu>
PR libfortran/38199
* io/list_read.c (next_char): Mark unlikely error checks.
(eat_spaces): For character array reading, skip ahead over
spaces rather than call next_char multiple times.
2014-03-08 Tobias Burnus <burnus@net-b.de>
* libgfortran.h (unlikely, likely): Add usage comment.
2014-03-08 Dominique d'Humieres <dominiq@lps.ens.fr>
PR libgfortran/60128
* io/write_float.def (output_float): Remove unused variable
nzero_real. Replace a double space with a single one.
(determine_en_precision): Fix wrong handling of the EN format.
2014-03-03 Jerry DeLisle <jvdelisle@gcc.gnu>
PR libfortran/60148
* io/inquire.c (inquire_via_unit): In the case of
DELIM_UNSPECIFIED set inquire return string to "NONE".
* io/list_read.c (read_character): In the case of DELIM_NONE and
namelists, complete the character read using the namelist
variable length.
* io/open.c (new_unit): Don't set delim status to none if not
specified so that DELIM_UNSPECIFIED can be used later.
* io/transfer.c (data_transfer_init): For namelist I/O, if the
unit delim status is unspecified set the current status to quote.
Otherwise, set current status to the unit status.
* io/unit.c (get_internel_unit, init_unit): Remember to set
flags_delim initially to DELIM_UNSPECIFIED so defaults come out
correctly.
* io/write.c (write_character): Add a new function argument
"mode" to signify that raw output is to be used vs output with
delimiters. If the mode is set to DELIM (1) proceed with
delimiters. (list_formatted_write_scalar): Write the separator
only if a delimiter was previously specified. Update the call to
write_character with the mode argument given.
(namelist_write_newline): Use the mode argument. (nml_write_obj):
Use the mode argument. Remove use of tmp_delim. Write the
semi-colon or comma correctly only when needed with using
delimiters. Cleanup whitespace.
(namelist_write): If delim is not specified in namelist I/O,
default to using quotes. Get rid of the tmp_delim variable and
use the new mode argument in write_character.
2014-02-21 Tobias Burnus <burnus@net-b.de>
PR fortran/60286
* libgfortran/io/inquire.c (yes, no): New static const char vars.
(inquire_via_unit): Use them. Use OPEN mode instead of using
POSIX's access to query about write=, read= and readwrite=.
2014-01-20 Jerry DeLisle <jvdelisle@gcc.gnu>
Dominique d'Humieres <dominiq@lps.ens.fr>
* io/write_float.def (output_float): Remove inadvertent test
code from previous patch.
2014-01-19 Jerry DeLisle <jvdelisle@gcc.gnu>
Dominique d'Humieres <dominiq@lps.ens.fr>
PR libfortran/59771
PR libfortran/59774
PR libfortran/59836
* io/write_float.def (output_float): Fix wrong handling of the
Fw.0 format.
(output_float_FMT_G_): Fixes rounding issues with -m32.
2014-01-11 Jerry DeLisle <jvdelisle@gcc.gnu>
Dominique d'Humieres <dominiq@lps.ens.fr>
Steven G. Kargl <kargl@gcc.gnu.org>
PR libfortran/59700
PR libfortran/59764
* io/io.h (struct st_parameter_dt): Assign expanded_read flag to
unused bit. Define new variable line_buffer_pos.
* io/list_read.c (free_saved, next_char, l_push_char,
read_logical, read_real): Replace use of item_count with
line_buffer_pos for line_buffer look ahead.
(read_logical, read_integer, parse_real, read_real, check_type):
Adjust location of free_line to after generating error messages
to retain the correct item count for the message.
2014-01-02 Richard Sandiford <rdsandiford@googlemail.com>
Update copyright years
2013-12-18 Steven G. Kargl <kargl@gcc.gnu.org>
* io/read.c (read_f): Convert assert to runtime error.
2013-12-17 Andreas Tobler <andreast@gcc.gnu.org>
* io/unix.c (tempfile_open): Only use the needed flag O_CLOEXEC.
2013-12-16 Jerry DeLisle <jvdelisle@gcc.gnu>
PR libfortran/59419
* io/file_pos.c (st_rewind): Do proper return after
generate_error.
* io/open.c (edit_modes): Move action code inside block that
checks for library ok. (new_unit): Do cleanup after error.
(st_open): Do proper return after error.
* io/transfer.c (data_transfer_init): Likewise.
2013-12-11 Tobias Burnus <burnus@net-b.de>
* config/fpu-387.h (sigill_hdlr, get_fpu_rounding_mode): Emit SSE
instructions when __SSE_MATH__ is defined.
2013-12-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* intrinsics/erfc_scaled.c (_M_2_SQRTPI): Define if missing.
2013-12-01 Uros Bizjak <ubizjak@gmail.com>
PR libfortran/59313
* intrinsics/erfc_scaled.c (erfc_scaled_r16): Also provide for
quadruple precision long double variant.
2013-11-20 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
* intrinsics/erfc_scaled.c (erfc_scaled_r16): Don't define if
__float128 is not available.
2013-11-20 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
PR libfortran/49024
* intrinsics/erfc_scaled.c (erfc_scaled_r16): New function.
* intrinsics/erfc_scaled_inc.c: Do not provide quadruple
precision variant.
2013-11-18 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
PR libfortran/51828
* intrinsics/unpack_generic.c (unpack_internal): Let the compiler
know that dim > 0 to avoid warnings.
2013-11-15 Janne Blomqvist <jb@gcc.gnu.org>
Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR fortran/59108
* io/unix.c (regular_file): Don't set O_CREAT when opening a file
read-only with unknown status. Mask out O_CREAT when falling back
to opening read-only if ACTION= is not set and read-write fails.
2013-11-15 Steve Ellcey <sellcey@mips.com>
* configure.ac: Do not define HAVE_STRTOLD.
* configure: Regenerate.
2013-11-10 Janne Blomqvist <jb@gcc.gnu.org>
* configure.ac: Check presence of mkostemp.
* io/unix.c (set_close_on_exec): New function.
(tempfile_open): Use mkostemp and O_CLOEXEC if available, fallback
to calling set_close_on_exec.
(regular_file): Add O_CLOEXEC to flags if defined.
(open_external): Call set_close_on_exec if O_CLOEXEC is not
defined.
* config.h.in: Regenerated.
* configure: Regenerated.
* Makefile.in: Regenerated.
* aclocal.m4: Regenerated.
2013-10-01 Tobias Burnus <burnus@net-b.de>
PR fortran/55469
* io/list_read (parse_repeat, read_integer, read_character,
parse_real, read_real, check_type, list_formatted_read_scalar,
finish_list_read): Call list_free.
2013-09-20 Alan Modra <amodra@gmail.com>
* configure: Regenerate.
2013-07-23 Uros Bizjak <ubizjak@gmail.com>
* config/fpu-387.h (get_fpu_rounding_mode): Read rounding mode
from SSE mxcsr register on x86_64.
2013-07-21 Ondřej Bílka <neleai@seznam.cz>
* io/transfer.c: Fix comment typos.
2013-07-21 Tobias Burnus <burnus@net-b.de>
PR fortran/35862
* config/fpu-387.h (set_fpu_rounding_mode,
get_fpu_rounding_mode): Add missing _ to fix build.
2013-07-21 Tobias Burnus <burnus@net-b.de>
Uros Bizjak <ubizjak@gmail.com>
PR fortran/35862
* libgfortran.h (set_fpu_rounding_mode,
get_fpu_rounding_mode): New prototypes.
* config/fpu-387.h (set_fpu_rounding_mode,
get_fpu_rounding_mode): New functions.
* config/fpu-aix.h (set_fpu_rounding_mode,
get_fpu_rounding_mode): Ditto.
* config/fpu-generic.h (set_fpu_rounding_mode,
get_fpu_rounding_mode): Ditto.
* config/fpu-glibc.h (set_fpu_rounding_mode,
get_fpu_rounding_mode): Ditto.
* config/fpu-sysv.h (set_fpu_rounding_mode,
get_fpu_rounding_mode): Ditto.
* configure.ac: Check for fp_rnd and fp_rnd_t.
* io/io.h (enum unit_round): Use GFC_FPE_* for the value.
* io/read.c (convert_real): Set FP ronding mode.
* Makefile.in: Regenerate.
* aclocal.m4: Regenerate.
* config.h.in: Regenerate.
* configure: Regenerate.
2013-06-24 Tobias Burnus <burnus@net-b.de>
* configure.ac: Check for fp_except and fp_except_t.
* config/fpu-sysv.h: Conditionally use either type.
* configure: Regenerate.
* config.h.in: Regenerate.
2013-06-21 Eric Botcazou <ebotcazou@adacore.com>
* config/fpu-sysv.h (get_fpu_except_flags): Fix typo.
2013-06-20 Uros Bizjak <ubizjak@gmail.com>
* config/fpu-387.h (_FPU_MASK_ALL): New.
(_FPU_EX_ALL): Ditto.
(set_fpu): Use fstcw to store x87 FPU control word. Use fnclex to
clear stalled exception flags. Correctly clear stalled SSE
exception flags. Simplify code.
(get_fpu_except_flags): Simplify code.
2013-06-20 Tobias Burnus <burnus@net-b.de>
PR fortran/57633
* io/list_read.c (next_char, eat_separator): Don't set EOL for \r.
2013-06-19 Uros Bizjak <ubizjak@gmail.com>
* config/fpu-387.h: Use __asm__ and __volatile__ consistently.
(get_fpu_except_flags): Initialize result.
2013-06-17 Tobias Burnus <burnus@net-b.de>
* libgfortran.h (compile_options_t) Add fpe_summary.
(get_fpu_except_flags): New prototype.
* runtime/compile_options.c (set_options, init_compile_options):
Handle fpe_summary.
* runtime/stop.c (report_exception): New function.
(stop_numeric, stop_numeric_f08, stop_string, error_stop_string,
error_stop_numeric): Call it.
* config/fpu-387.h (get_fpu_except_flags): New function.
* config/fpu-aix.h (get_fpu_except_flags): New function.
* config/fpu-generic.h (get_fpu_except_flags): New function.
* config/fpu-glibc.h (get_fpu_except_flags): New function.
* config/fpu-sysv.h (get_fpu_except_flags): New function.
* configure.ac: Check for fpxcp.h.
* configure: Regenerate.
* config.h.in: Regenerate.
2013-06-01 Tobias Burnus <burnus@net-b.de>
PR fortran/57496
* io/write_float.def (ISFINITE2Q, ISFINITE2, ISFINITE2L, ISFINITE,
SIGNBIT2Q, SIGNBIT2, SIGNBIT2L, SIGNBIT, ISNAN2Q, ISNAN2, ISNAN2L,
ISNAN): New macros.
(output_float_FMT_G_,WRITE_FLOAT): Use them.
2013-05-24 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* acinclude.m4 (libgfor_cv_have_as_needed): Check for -z ignore, too.
* configure: Regenerate.
2013-05-05 David Edelsohn <dje.gcc@gmail.com>
* caf/libcaf.h (_gfortran_caf_critical): Add a prototype.
(_gfortran_caf_end_critical): Same.
2013-05-04 David Edelsohn <dje.gcc@gmail.com>
* runtime/environ.c: Include unistd.h.
* runtime/pause.c: Test HAVE_UNISTD_H.
* runtime/stop.c: Same.
* io/open.c: Same.
* io/unix.c: Same.
* io/read.c (si_max): Protect declaration of value.
2013-04-29 Janne Blomqvist <jb@gcc.gnu.org>
* intrinsics/system_clock (gf_gettime_mono): Use variable
resolution for fractional seconds argument.
(system_clock_4): Simplify, update for gf_gettime_mono change.
(system_clock_8): Likewise.
2013-04-29 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/56981
* io/transfer.c (next_record_w_unf): First fix head marker, then
write tail.
(next_record): Call flush_if_unbuffered.
* io/unix.c (struct unix_stream): Add field unbuffered.
(flush_if_unbuffered): New function.
(fd_to_stream): New argument.
(open_external): Fix fd_to_stream call.
(input_stream): Likewise.
(output_stream): Likewise.
(error_stream): Likewise.
* io/unix.h (flush_if_unbuffered): New prototype.
2013-04-28 Janne Blomqvist <jb@gcc.gnu.org>
* intrinsics/system_clock.c (system_clock_4): Fix sign error in
Windows version.
2013-04-15 Tobias Burnus <burnus@net-b.de>
* list_read.c (finish_separator): Initialize variable.
2013-04-15 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/56919
* intrinsics/time_1.h: Check __CYGWIN__ in addition to
__MINGW32__.
* intrinsics/system_clock.c (GF_CLOCK_MONOTONIC): Check
_POSIX_MONOTONIC_CLOCK as well.
(system_clock_4): Use GetTickCount on Windows.
(system_clock_8): Use QueryPerformanceCounter and
QueryPerformanceCounterFrequency on Windows.
2013-04-04 Tobias Burnus <burnus@net-b.de>
PR fortran/56810
* io/list_read.c (check_type): Fix kind checking for COMPLEX.
2013-04-01 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/56660
* io/list_read.c (nml_read_obj): Do not reset the read error flag
inside nml_read_obj. If the read error flag is found set just exit.
Fix some whitespace on comments.
(nml_read_obj_data): Reset the read error flag before the first call
to nml_read_object.
2013-03-31 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/56786
* io/list_read.c (nml_parse_qualifier): Remove spurious next_char call
when checking for EOF. Use error return mechanism when EOF detected.
Do not return false unless parse_err_msg and parse_err_msg_size have
been set. Use hit_eof.
(nml_get_obj_data): Likewise use the correct error mechanism.
* io/transfer.c (hit_eof): Do not set AFTER_ENDFILE if in namelist
mode.
2013-03-29 Tobias Burnus <burnus@net-b.de>
PR fortran/56737
* io/format.c (parse_format_list): Also cache FMT_STRING.
(parse_format): Update call.
2013-03-29 Tobias Burnus <burnus@net-b.de>
PR fortran/56737
* io/format.c (parse_format): With caching, copy
dtp->format string.
(save_parsed_format): Use dtp->format directy without
copying.
2013-03-29 Tobias Burnus <burnus@net-b.de>
PR fortran/56735
* io/list_read.c (nml_query): Only abort when
an error occured.
(namelist_read): Add goto instead of falling through.
2013-03-25 Tilo Schwarz <tilo@tilo-schwarz.de>
PR libfortran/52512
* io/list_read.c (nml_parse_qualifier): To check for a derived type
don't use the namelist head element type but the current element type.
(nml_get_obj_data): Add current namelist element type to
nml_parse_qualifier call.
2013-03-24 Tobias Burnus <burnus@net-b.de>
PR fortran/56696
* io/list_read.c (read_real): Fix EOF diagnostic.
2013-03-20 Tilo Schwarz <tilo@tilo-schwarz.de>
PR libfortran/51825
* io/list_read.c (nml_read_obj): Don't end the component loop on a
nested derived type, but continue with the next loop iteration.
(nml_get_obj_data): Don't move the first_nl pointer further in the
list if a qualifier was found.
2013-03-20 Tilo Schwarz <tilo@tilo-schwarz.de>
PR libfortran/48618
* io/open.c (st_open): Raise error for unit number < 0 only if
unit number does not exist already.
2013-03-19 Janne Blomqvist <jb@gcc.gnu.org>
* libgfortran.h: Include stdbool.h.
(enum try): Remove.
(notify_std): Change return type to bool.
* intrinsics/chmod.c: Don't include stdbool.h.
* intrinsics/execute_command_line.c: Likewise.
* io/format.c: Likewise.
* io/list_read.c (nml_parse_qualifier): Change return type to bool.
(nml_read_obj): Likewise.
(nml_get_obj_data): Likewise.
* io/transfer.c (read_block_form): Fix comment.
(write_buf): Change return type to bool.
* io/write.c: Don't include stdbool.h.
* io/write_float.def (output_float): Change return type to bool.
(output_float_FMT_G_ ## x): Change type of result variable.
* runtime/error.c (notify_std): Change return type to bool.
2013-03-11 Tobias Burnus <burnus@net-b.de>
* io/transfer.c (read_block_direct): Correct condition.
* intrinsics/execute_command_line.c (execute_command_line):
Remove dead code for the HAVE_FORK case.
2013-02-21 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/30162
* io/open.c (test_endfile): Call stell only if size != 0.
* io/unix.c (raw_tell): Revert r194679.
(raw_size): Return size field only for regular files, otherwise 0.
2013-02-19 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
PR target/56347
* acinclude.m4 (LIBGFOR_CHECK_FOR_BROKEN_POWF): Remove check for
broken powf.
* configure.ac (LIBGFOR_CHECK_FOR_BROKEN_POWF): Likewise.
* intrinsics/c99_functions.c: Likewise.
* configure: Rebuilt.
* config.h.in: Rebuilt.
2013-02-06 Janus Weil <janus@gcc.gnu.org>
PR fortran/55978
* runtime/in_pack_generic.c (internal_pack): Return if base_addr is
NULL.
2013-01-23 Janne Blomqvist <jb@gcc.gnu.org>
* io/file_pos.c (unformatted_backspace): Use __builtin_bswapXX
instead of reverse_memcpy.
* io/io.h (reverse_memcpy): Remove prototype.
* io/transfer.c (reverse_memcpy): Make static, move towards
beginning of file.
(bswap_array): New function.
(unformatted_read): Use bswap_array to byte swap the data
in-place.
(unformatted_write): Use a larger temp buffer and bswap_array.
(us_read): Use __builtin_bswapXX instead of reverse_memcpy.
(write_us_marker): Likewise.
2013-01-14 Richard Sandiford <rdsandiford@googlemail.com>
Update copyright years.
2013-01-06 Tobias Burnus <burnus@net-b.de>
PR fortran/54678
* intrinsics/env.c (get_environment_variable_i8): Don't use
uninitialized variable.
2013-01-02 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/55818
* io/list_read.c (read_real): Do not call hit_eof when EOF can be
treated as a value separator.
(parse_real): Likewise.
(read_logical): Likewise.
(read_character): Likewise.
(read_complex): Likewise.
Copyright (C) 2013-2014 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
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