jehanne/qa/lib/c/privates2.c
Giacomo Tesio e70feee4a3 libc: introduce "jehanne_" namespace
With this commit all functions declared in libc.h have been renamed
with the "jehanne_" prefix. This is done for several reason:

- it removes conflicts during symbol resolution when linking
  standard C libraries like newlib or musl
- it allows programs depending on a standard C library to directly
  link to a library depending on our non standard libc (eg libsec).

To ease transiction two files are provided:

- sys/include/lib9.h that can be included instead of <libc.h> to use
  the old names (via a simple set of macros)
- sys/src/lib/c/lib9.c that can be compiled with a program where the
  macro provided by lib9.h are too dumb (see for example rc or grep).

In the kernel port/lib.h has been modified accordingly and some of
the functions it directly provides has been renamed too (eg malloc
in qmalloc.c and print in devcons.c).
2017-04-19 23:48:21 +02:00

67 lines
1.5 KiB
C

/*
* This file is part of Jehanne.
*
* Copyright (C) 2016 Giacomo Tesio <giacomo@tesio.it>
*
* Jehanne is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2 of the License.
*
* Jehanne is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Jehanne. If not, see <http://www.gnu.org/licenses/>.
*/
#include <u.h>
#include <lib9.h>
int spin;
int ok[2];
void
main(void)
{
char **test;
test = (char **)privalloc();
*test = smprint("Hello from %d (at %p)\n", getpid(), test);
rfork(RFNOTEG);
switch(rfork(RFPROC|RFMEM)){
case -1:
exits("rfork");
case 0:
*test = smprint("Hello from %d (at %p)\n", getpid(), test);
spin = 1;
while(spin)
;
print("on %d: %s", getpid(), *test);
exits(nil);
break;
default:
while(spin == 0)
;
}
switch(rfork(RFPROC|RFMEM)){
case -1:
exits("rfork");
case 0:
*test = smprint("Hello from %d (at %p)\n", getpid(), test);
spin = 2;
while(spin)
;
print("on %d: %s", getpid(), *test);
exits(nil);
break;
default:
while(spin == 1)
;
}
spin = 0;
sleep(500);
print("on %d: %s", getpid(), *test);
exits("PASS");
}