Commit Graph

8 Commits

Author SHA1 Message Date
Sebastian Sumpf
f7509a5b78 libports: libc: extract file name from path in dlopen
'dlopen' causes the ldso to open ROM connections, right now we only
support single file names for these ROM not paths. Therefore, we extract
the file name from path within libc's 'dlopen'

fixes #3551
2019-11-19 14:54:14 +01:00
Norman Feske
bf92232698 libc: split task.cc into multiple files
This patch is the first step of re-organizing the internal structure of
the libc. The original version involved many direct calls of global
functions (often with side effects) across compilation units, which
made the control flow (e.g., the initialization sequence) hard to
follow.

The new version replaces those ad-hoc interactions with dedicated
interfaces (like suspend.h, resume.h, select.h, current_time.h). The
underlying facilities are provided by the central Libc::Kernel and
selectively propagated to the various compilation units. The latter is
done by a sequence of 'init_*' calls, which eventually will be replaced
by constructor calls.

The addition of new headers increases the chance for name clashes with
existing (public) headers. To disambiguate libc-internal header files
from public headers, this patch moves the former into a new 'internal/'
subdirectory. This makes the include directives easier to follow and the
libc's source-tree structure more tidy.

There are still a few legacies left, which cannot easily be removed
right now (e.g., because noux relies on them). However, the patch moves
those bad apples to legacy.h and legacy.cc, which highlights the
deprecation of those functions.

Issue #3497
2019-11-19 14:10:55 +01:00
Sebastian Sumpf
bfd9c48039 libc: support RTLD_DEFAULT in dlsym
issue #2791
2018-05-30 13:36:04 +02:00
Sebastian Sumpf
17df52bfbd libc: allow RTLD_GLOBAL for dlopen
issue #2488
2017-08-28 16:49:42 +02:00
Norman Feske
d1df1dbd87 libc: API transition (fix deprecated warnings)
Issue #1987
2017-02-07 11:12:24 +01:00
Norman Feske
784e728727 Clean ldso from using deprecated APIs
Issue #1987
2016-11-08 15:26:32 +01:00
Norman Feske
17c79a9e23 base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.

While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).

To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.

Issue #1987
2016-08-29 17:27:10 +02:00
Sebastian Sumpf
5a821d4c92 base: Genode's dynamic linker
Issue #1280
2014-11-12 14:44:15 +01:00