diff options
Diffstat (limited to 'common/uapi/mem.c')
| -rw-r--r-- | common/uapi/mem.c | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/common/uapi/mem.c b/common/uapi/mem.c index 1644a16..1de63f1 100644 --- a/common/uapi/mem.c +++ b/common/uapi/mem.c @@ -15,6 +15,7 @@ /** * Memory request syscall handler. * + * @param t Current tcb. * @param size Minimum size of allocation. * @param flags Flags of allocation. * @return \ref OK and start of allocation when succesful, @@ -25,14 +26,15 @@ SYSCALL_DEFINE2(req_mem)(struct tcb *t, sys_arg_t size, sys_arg_t flags) struct tcb *r = get_cproc(t); vm_t start = 0; if ((start = alloc_uvmem(r, size, flags))) - return SYS_RET1(ERR_OOMEM); + return_args(t, SYS_RET1(ERR_OOMEM)); - return SYS_RET2(OK, start); + return_args(t, SYS_RET2(OK, start)); } /** * Fixed memory request syscall handler. * + * @param t Current tcb. * @param fixed Address which should be included in allocation. * @param size Minimum size of allocation after \c start. * @param flags Flags of allocation. @@ -45,14 +47,15 @@ SYSCALL_DEFINE3(req_fixmem)(struct tcb *t, sys_arg_t fixed, sys_arg_t size, struct tcb *r = get_cproc(t); vm_t start = 0; if ((start = alloc_fixed_uvmem(r, fixed, size, flags))) - return SYS_RET1(ERR_OOMEM); + return_args(t, SYS_RET1(ERR_OOMEM)); - return SYS_RET2(OK, start); + return_args(t, SYS_RET2(OK, start)); } /** * Free memory syscall handler. * + * @param t Current tcb. * @param start Start of allocation to free. * @return \ref OK and \c 0 when succesful, \ref ERR_NF and \c 0 otherwise. */ @@ -68,14 +71,15 @@ SYSCALL_DEFINE1(free_mem)(struct tcb *t, sys_arg_t start) status = free_devmem(r, vm_start); if (status) - return SYS_RET1(ERR_NF); + return_args(t, SYS_RET1(ERR_NF)); - return SYS_RET1(OK); + return_args(t, SYS_RET1(OK)); } /** * Request physical memory syscall handler. * + * @param t Current tcb. * @param paddr Physical address to map. * @param size Minimum size of allocation. * @param flags Flags of allocation. @@ -93,14 +97,15 @@ SYSCALL_DEFINE3(req_pmem)(struct tcb *t, sys_arg_t paddr, sys_arg_t size, struct tcb *r = get_cproc(t); vm_t start = 0; if ((start = alloc_devmem(r, paddr, size, flags))) - return SYS_RET1(ERR_OOMEM); + return_args(t, SYS_RET1(ERR_OOMEM)); - return SYS_RET2(OK, start); + return_args(t, SYS_RET2(OK, start)); } /** * Request shared memory syscall handler. * + * @param t Current tcb. * @param size Minimum size of allocation. * @param flags Flags of allocation. * @return \ref OK and start of allocation when succesful, @@ -112,14 +117,15 @@ SYSCALL_DEFINE2(req_sharedmem)(struct tcb *t, sys_arg_t size, sys_arg_t flags) struct tcb *r = get_cproc(t); vm_t start = 0; if ((start = alloc_shared_uvmem(r, size, flags))) - return SYS_RET1(ERR_OOMEM); + return_args(t, SYS_RET1(ERR_OOMEM)); - return SYS_RET2(OK, start); + return_args(t, SYS_RET2(OK, start)); } /** * Reference shared memory syscall handler. * + * @param t Current tcb. * @param tid Thread ID of shared memory owner. * @param va Start of shared memory in \c tid. * @param flags Flags of reference. @@ -132,9 +138,9 @@ SYSCALL_DEFINE3(ref_sharedmem)(struct tcb *t, sys_arg_t tid, sys_arg_t va, struct tcb *t2 = get_tcb(tid); vm_t start = 0; if ((start = ref_shared_uvmem(t, t2, va, flags))) - return SYS_RET1(ERR_OOMEM); + return_args(t, SYS_RET1(ERR_OOMEM)); - return SYS_RET2(OK, start); + return_args(t, SYS_RET2(OK, start)); } /** \todo add some way to specify who gets to access the shared memory? */ |