Changeset b7fd2a0 in mainline for kernel/genarch/include

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/include/genarch/drivers/am335x

Files:

• ctrl_module.h (modified) (1 diff)
• timer.h (modified) (1 diff)

kernel/genarch/include/genarch/drivers/am335x/ctrl_module.h

@@ -46 +46 @@
 typedef ioport32_t am335x_ctrl_module_t;
 
-static int
+static errno_t
 am335x_ctrl_module_clock_freq_get(am335x_ctrl_module_t *base, unsigned *freq)
 {

kernel/genarch/include/genarch/drivers/am335x/timer.h

@@ -85 +85 @@
 } am335x_timer_t;
 
-extern int am335x_timer_init(am335x_timer_t *timer, am335x_timer_id_t id,
+extern errno_t am335x_timer_init(am335x_timer_t *timer, am335x_timer_id_t id,
     unsigned hz, unsigned srcclk_hz);
 extern void am335x_timer_intr_ack(am335x_timer_t *timer);