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shmat/shmget for utcbs are working for now.

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faults on shared memory needs to be implemented.
This commit is contained in:
Bahadir Balban
2008-03-19 22:26:38 +00:00
parent 55d24dbbdf
commit 466138f125
10 changed files with 130 additions and 84 deletions
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4
tasks/libposix/errno.c
View File

@@ -1,8 +1,8 @@
#include <errno.h>
int errno;
int errno_variable;
int *__errno_location(void)
{
return &errno;
return &errno_variable;
}

12
tasks/libposix/shm.c
View File

@@ -27,13 +27,13 @@ int l4_shmget(l4id_t key, int size, int shmflg)
return err;
}
/* Check if syscall itself was successful */
if ((err = l4_get_retval()) < 0) {
if (IS_ERR(err = l4_get_retval())) {
printf("%s: SHMGET Error: %d.\n", __FUNCTION__, err);
return err;
}
/* Obtain shmid. */
return read_mr(L4SYS_ARG0);
/* Otherwise err has the positive id number */
return err;
}
void *l4_shmat(l4id_t shmid, const void *shmaddr, int shmflg)
@@ -50,13 +50,13 @@ void *l4_shmat(l4id_t shmid, const void *shmaddr, int shmflg)
return PTR_ERR(err);
}
/* Check if syscall itself was successful */
if ((err = l4_get_retval()) < 0) {
if (IS_ERR(err = l4_get_retval())) {
printf("%s: SHMAT Error: %d.\n", __FUNCTION__, err);
return PTR_ERR(err);
}
/* Obtain shm base. */
return (void *)read_mr(L4SYS_ARG0);
return (void *)err;
}
int l4_shmdt(const void *shmaddr)