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base: avoid use of deprecated base/printf.h

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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
This commit is contained in:
Norman Feske
2016-07-13 19:07:09 +02:00
committed by Christian Helmuth
parent a5d3aa8373
commit 17c79a9e23
699 changed files with 5156 additions and 5865 deletions
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20
repos/base-linux/src/lib/lx_hybrid/lx_hybrid.cc
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@ -12,7 +12,6 @@
*/
/* Genode includes */
#include <base/printf.h>
#include <base/log.h>
#include <base/component.h>
#include <linux_syscalls.h>
@ -307,32 +306,32 @@ namespace Genode {
void wait_for_construction()
{
PERR("wait_for_construction() called for an adopted thread");
error("wait_for_construction() called for an adopted thread");
}
void constructed()
{
PERR("constructed() called for an adopted thread");
error("constructed() called for an adopted thread");
}
void wait_for_start()
{
PERR("wait_for_start() called for an adopted thread");
error("wait_for_start() called for an adopted thread");
}
void started()
{
PERR("started() called for an adopted thread");
error("started() called for an adopted thread");
}
void wait_for_join()
{
PERR("wait_for_join() called for an adopted thread");
error("wait_for_join() called for an adopted thread");
}
void joined()
{
PERR("joined() called for an adopted thread");
error("joined() called for an adopted thread");
}
};
}
@ -464,8 +463,7 @@ Thread::Thread(size_t weight, const char *name, size_t stack_size,
int const ret = pthread_create(&meta_data->pt, 0, thread_start, meta_data);
if (ret) {
PERR("pthread_create failed (returned %d, errno=%d)",
ret, errno);
error("pthread_create failed (returned ", ret, ", errno=", errno, ")");
destroy(env()->heap(), meta_data);
throw Out_of_stack_space();
}
@ -511,8 +509,8 @@ Thread::~Thread()
if (needs_join) {
int const ret = pthread_join(native_thread().meta_data->pt, 0);
if (ret)
PWRN("pthread_join unexpectedly returned with %d (errno=%d)",
ret, errno);
warning("pthread_join unexpectedly returned "
"with ", ret, " (errno=", errno, ")");
}
Thread_meta_data_created *meta_data =