This patch adds scanf, sscanf, and fscanf entrypoints. It also adds unit
tests for sscanf and a basic test to fscanf. The scanf function is
basically impossible to test in an automated fashion due to it recieving
user input.
Reviewed By: sivachandra, lntue
Differential Revision: https://reviews.llvm.org/D138076
The `assert.h` and `ctype.h` headers are never built despite their
entrypoints being present in the generated library. This patch adds a
dependency on these headers so that they will be built properly.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D138142
The assert functions were disabled while the signal functions were being
fixed. This patch re-enables them.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D138056
Implement gettimeofday per
.../onlinepubs/9699919799/functions/gettimeofday.html.
This call clock_gettime to implement gettimeofday function.
Tested:
Limited unit test: This makes a call and checks that no error was
returned. Used nanosleep for 100 microseconds and verfified it
returns a value that elapses more than 100 microseconds and less
than 300 microseconds.
Co-authored-by: Jeff Bailey <jeffbailey@google.com>
Differential Revision: https://reviews.llvm.org/D137881
A bug in the file read logic has also been fixed along the way. Parts
of the ungetc tests will fail without that bug fixed.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D137286
The strcoll function is intended to compare strings based on their
ordering in the current locale. Since the locale facilities have not yet
been added, a simple implementation that is the same as strcmp has been
added as a placeholder.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D136802
The difftime function computes the difference between two calendar
times: time1 - time0 as per as per 7.27.2.2 section in
http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2478.pdf.
double difftime(time_t time1, time_t time0);
Tested:
Unit tests
Co-authored-by: Jeff Bailey <jeffbailey@google.com>
Reviewed By: jeffbailey
Differential Revision: https://reviews.llvm.org/D136631
The implementation currently ignores all spawn attributes. Support for
them will be added in future changes.
A simple allocator for integration tests has been added so that the
integration test for posix_spawn can use the
posix_spawn_file_actions_add* functions.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D135752
These headers are uncommonly used, and from extensions, but some basic
support is needed. Macros have been added where available.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D135731
Some headers hadn't been added, this fixes that and improves the
ordering.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D135629
The isatty function uses the side effects of an ioctl call to determine
if a specific file descriptor is a terminal. I chose TIOCGETD (get line
discipline of terminal) because it didn't require any new structs.
Reviewed By: sivachandra, lntue
Differential Revision: https://reviews.llvm.org/D135618
The sysconf function has many options, this patch adds the basic funtion
and the pagesize option. More options will be added in future patches.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D135409
The logic for strsignal and strerror is very similar, so I've moved them
both to use a shared utility (MessageMapper) for the basic
functionality.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D135322
I've implemente the gnu variant of strerror_r since that seems to be the
one more relevant to what we're trying to do.
Differential Revision: https://reviews.llvm.org/D135227
Without this fix, the declaration in sched.h will not have the "__" prefix and
will cause a compile failure.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D135286
Guillaume Chatelet