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Commit 72ff9acad2ab54e80a19ddaec0106065c817e3f6 caused st_atime,
st_ctime, and st_mtime to be defined as macros. This collided with
use of these identifiers as field names in struct gdb_stat (which
represents the GDB RSP encoding of struct stat) in libgloss
semihosting support for nios2 and m68k. This patch renames the
affected fields of struct gdb_stat.
Signed-off-by: Sandra Loosemore <sandra@codesourcery.com>
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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libc/include/fenv.h was a direct copy of this file.
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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- Support pseudo console in PTY. Pseudo console is a new feature
in Windows 10 1809, which provides console APIs on virtual
terminal. With this patch, native console applications can work
in PTYs such as mintty, ssh, gnu screen or tmux.
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Don't refer to lacl[pos] unless we know that pos >= 0.
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While the C99 standard doesn't explicitly require this, the standard
says it is recommended (F.9.13).
Signed-off-by: Martin Storsjö <martin@martin.st>
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Signed-off-by: Martin Storsjö <martin@martin.st>
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For zero, it should return HUGE_VAL (INFINITY), for negative integers,
it should return NAN.
Signed-off-by: Martin Storsjö <martin@martin.st>
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- revert previous fix which altered sys/stat.h
- fix libgloss/cris/gensyscalls to undef st_atime, st_mtime,
and st_ctime macros which cannot be used with new_stat structure
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Rather than waiting for signalfd_select_wait in a thread, which is racy,
create a global event "my_pendingsigs_evt" which is set and reset by
wait_sig depending only on the fact if blocked signals are pending or not.
This in turn allows to WFMO on this event in select as soon as signalfds
are present in the read descriptor set. Select's peek and verify
will then check if one of the present signalfds is affected.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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This reverts commit 92115a83a4579635e253be2887d3706d28b477fd.
This was utterly wrong.
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...except in certain SysV R4 cases for backward compat.
This is probably not required anymore, but it doesn't hurt
to keep it in.
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Borrow a trick from strace to lessen occurrences of "??? => ???" in ldd
output. Specifically, if the module name isn't found in the usual place
in the mapped image, use the file handle we have to look up the name.
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- Add code so that select() is not interrupted by SIGWINCH if it is
ignored (SIG_IGN or SIG_DFL).
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- The workaround commit 33a21904a702191cebf0e81b4deba2dfa10a406c
does not work as expected if window size is changed while screen
is alternated. Fixed.
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Teach makedocbook how to handle some new things seen in the makedoc markup
since eae68bfc:
- 'link with' lines appearing in SYNOPSIS sections
Also, don't raise a NoneType exception when there's something we don't
know how to handle in a SYNOPSIS section, just exit.
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See makedoc.c:657:
Variables are marked up as '<[foo]>'.
Code is marked up as '<<foo>>'.
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fe_dfl_env.c doesn't contain any documentation, so drop it from makedoc
processing.
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On sigwaitinfo or reading from a signalfd, signal processing sets up
signal handling via sigdelayed even if the handler address is NULL.
This doesn't have any impact on sigwaitinfo scenarios (or at least, I
wasn't able to come up with a reproducer) but it breaks signalfd
scenarios, where eventually a call to call_signal_handler from
sigdelayed will try to call the NULL function.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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- If screen is alternated on console, cursor position is not restored
correctly in the case of xterm compatible mode is enabled. For example,
the shell prompt is shown at incorrect position after using vim.
This patch fixes this problem.
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- The horizontal tab positions are broken after resizing console window.
This seems to be a bug of xterm compatible mode of windows console.
This workaround fixes this problem.
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- Calling fork() on console occasionally falls into deadlock. The reason
is not clear, however, this patch fixes this problem anyway.
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The default implementation of the fenv.h methods return
-EOPNOTSUP. Some of these have implementations appropriate
for soft-float.
The intention of the new fenv.h is that it be portable
and that architectures provide their own implementation
of sys/fenv.h.
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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This avoids collisions of shmat maps with Windows own datastructures
when allocating top-down.
This patch moves the mmap_allocator class definition into its
own files and just uses it from mmap and shmat.
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Fix this by aligning /proc/[PID]/stat to the values returned by getpriority().
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Adding default winvar 'PATH=C:\cygwin64\binZ' to an environment that is
already allocated for 'SYSTEMROOT=ZWINDIR=Z', we need to count that
trailing (Z)ero as well. Otherwise we trigger this assertion failure:
$ /bin/env -i SYSTEMROOT= WINDIR= /bin/env
assertion "(s - envblock) <= tl" failed: file "/home/corinna/src/cygwin/cygwin-3.0.7/cygwin-3.0.7-1.x86_64/src/newlib-cygwin/winsup/cygwin/environ.cc", line 1302, function: char** build_env(const char* const*, WCHAR*&, int&, bool, HANDLE)
Aborted (core dumped)
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When the exec family of functions is called for a script-like
file, the av::setup function handles the exec[vl]p case as
well. The execve case for files not starting with a she-bang
is handled first by returning ENOEXEC. Only after that, the
file's executability is checked.
This leads to the problem that ENOEXEC is returned for non-executable
files as well. A calling shell interprets this as a file it should try
to run as script. This is not desired for non-executable files.
Fix this problem by checking the file for executability first. Only
after that, follow the other potential code paths.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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1. Trim trailing spaces
2. Align comments, function declarations and definitions
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Applied changes from commit 2404223:
* arm/crt0.S (_mainCRTStartup): Weak reference to atexit and _fini
when lite exit is enabled.
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Applied changes from commit 8d98f95:
* arm/crt0.S: Initialise __heap_limit when ARM_RDI_MONITOR is defined.
* arm/syscalls.c: define __heap_limit global symbol.
* arm/syscalls.c (_sbrk): Honour __heap_limit.
Applied changes from commit 8d98f95:
Fixed semihosting for ARM when heapinfo not provided by debugger
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directives
Applied changes from the commit 9b11672:
When simulating arm code, the target program startup code (crt0) uses
semihosting invocations to get the command line from the simulator. The
simulator returns the command line and its size into the area passed in
parameter. (ARM 32-bit specifications :
http://infocenter.arm.com/help/topic/com.arm.doc.dui0058d/DUI0058.pdf
chapter "5.4.19 SYS_GET_CMDLINE").
The memory area pointed by the semihosting register argument is located
in .text section (usually not writtable (RX)).
If we run this code on a simulator that respects this rights properties
(qemu user-mode for instance), the command line will not be written to
the .text program memory, in particular the length of the string. The
program runs with an empty command line. This problem hasn't been seen
earlier probably because qemu user-mode is not so much used, but this can
happen with another simulator that refuse to write in a read-only segment.
With this modification, the command line can be correctly passed to the
target program.
Changes:
- newlib/libc/sys/arm/crt0.S : Arguments passed to the
AngelSWI_Reason_GetCmdLine semihosting invocation are placed into .data
section instead of .text
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This patch supplies an implementation of the CPU_SET(3) processor
affinity macros as documented on the relevant Linux man page.
There is a mostly superset implementation of cpusets under newlib's
libc/sys/RTEMS/include/sys that has Linux and FreeBSD compatibility
and is built on top of FreeBSD bitsets. This Cygwin implementation
and the RTEMS one could be combined if desired at some future point.
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Do not attach to the child before it was successfully initialized, or we
would need more sophisticated cleanup on child initialization failure,
like suppressing SIGCHILD delivery with multiple threads ("waitproc")
involved.
Improves "Cygwin: fork: Remember child not before success.",
commit f03ea8e1c57bd5cea83f6cd47fa02870bdfeb1c5, which leads to fork
problems if cygserver is running:
https://cygwin.com/ml/cygwin-patches/2019-q2/msg00155.html
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During fork, the child process requires the process table to be
initialized for fixup_shms_after_fork, while still allowing subsequent
dlls.load_after_fork to fail silently (for when the "forkable" hardlinks
are not created yet).
pinfo::remember not performing reattach anymore requires explicit
pinfo::reattach now where appropriate.
Prepares to improve "Cygwin: fork: Remember child not before success."
commit f03ea8e1c57bd5cea83f6cd47fa02870bdfeb1c5, which leads to fork
problems if cygserver is running:
https://cygwin.com/ml/cygwin-patches/2019-q2/msg00155.html
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Left-over part of commit 84b2a020daa17d8ee5c9ec979c3d56f95e69573b
The _end marker must be aligned to 4-bytes to ensure that the last
element written does not reach beyond the address of _end. This is
also necessary as the termination condition is an equality test
instead of an ordered test so (_end - _fbss) must be a multiple of
4-bytes. The alignment is already correct for mti*.ld files, fix
it for all remaining MIPS scripts that don't already align to at
least 4.
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This resolved linking errors when using methods such as
expm1().
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