Changeset b7fd2a0 in mainline for kernel/genarch/src

Timestamp:

2018-01-13T03:10:29Z (8 years ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

a53ed3a

Parents:

36f0738

Message:

Use errno_t in all uspace and kernel code.

Change type of every variable, parameter and return value that holds an
<errno.h> constant to either errno_t (the usual case), or sys_errno_t
(some places in kernel). This is for the purpose of self-documentation,
as well as for type-checking with a bit of type definition hackery.

Although this is a massive commit, it is a simple text replacement, and thus
is very easy to verify. Simply do the following:

`
git checkout <this commit's hash>
git reset HEAD
<sup>git add .
tools/srepl '\berrno_t\b' int
git add .
tools/srepl '\bsys_errno_t\b' sysarg_t
git reset
git diff
`</sup>

While this doesn't ensure that the replacements are correct, it does ensure
that the commit doesn't do anything except those replacements. Since errno_t
is typedef'd to int in the usual case (and sys_errno_t to sysarg_t), even if
incorrect, this commit cannot change behavior.

Location:

kernel/genarch/src

Files:

• ddi/ddi-bitmap.c (modified) (2 diffs)
• ddi/ddi-dummy.c (modified) (2 diffs)
• drivers/am335x/timer.c (modified) (1 diff)

kernel/genarch/src/ddi/ddi-bitmap.c

@@ -57 +57 @@
  *
  */
-int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size)
+errno_t ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size)
 {
         size_t elements = ioaddr + size;
@@ -120 +120 @@
  *
  */
-int ddi_iospace_disable_arch(task_t *task, uintptr_t ioaddr, size_t size)
+errno_t ddi_iospace_disable_arch(task_t *task, uintptr_t ioaddr, size_t size)
 {
         size_t elements = ioaddr + size;

kernel/genarch/src/ddi/ddi-dummy.c

@@ -48 +48 @@
  * @return EOK on success or an error code from errno.h.
  */
-int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size)
+errno_t ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size)
 {
         return 0;
@@ -63 +63 @@
  * @return EOK on success or an error code from errno.h.
  */
-int ddi_iospace_disable_arch(task_t *task, uintptr_t ioaddr, size_t size)
+errno_t ddi_iospace_disable_arch(task_t *task, uintptr_t ioaddr, size_t size)
 {
         return 0;

kernel/genarch/src/drivers/am335x/timer.c

@@ -84 +84 @@
 }
 
-int
+errno_t
 am335x_timer_init(am335x_timer_t *timer, am335x_timer_id_t id, unsigned hz,
     unsigned srcclk_hz)