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Kernel: Changed serial debug functions and variables for readability

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Change the name of set_serial_debug(bool on_or_off) to
set_serial_debug_enabled(bool desired_state). This is to make the names
more expressive and less unclear as to what the function does, as it
only sets the enabled state.
Likewise, change the name of get_serial_debug() to
is_serial_debug_enabled() in order to make clear from the name that
this is simply the state of s_serial_debug_enabled.
Change the name of serial_debug to s_serial_debug_enabled since this is
a static bool describing this state.
Finally, change the signature of set_serial_debug_enabled to return a
bool, as this is more logical and understandable.
This commit is contained in:
Skye Sprung 2022-08-24 23:49:23 +02:00 committed by Sam Atkins
parent cd763de280
commit eca85f2050
Notes: sideshowbarker 2024-07-19 17:03:25 +09:00 
Author: https://github.com/sk-spr
Commit: https://github.com/SerenityOS/serenity/commit/eca85f20502
Pull-request: https://github.com/SerenityOS/serenity/pull/15005
Reviewed-by: https://github.com/Hendiadyoin1
Reviewed-by: https://github.com/MacDue
3 changed files with 12 additions and 12 deletions
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4
Kernel/init.cpp
View File

@ -319,7 +319,7 @@ void init_stage2(void*)
VirtualFileSystem::initialize();
if (!get_serial_debug())
if (!is_serial_debug_enabled())
(void)SerialDevice::must_create(0).leak_ref();
(void)SerialDevice::must_create(1).leak_ref();
(void)SerialDevice::must_create(2).leak_ref();
@ -409,7 +409,7 @@ UNMAP_AFTER_INIT void setup_serial_debug()
// 8-N-1 57600 baud. this is particularly useful for debugging the boot
// process on live hardware.
if (StringView { kernel_cmdline, strlen(kernel_cmdline) }.contains("serial_debug"sv)) {
set_serial_debug(true);
set_serial_debug_enabled(true);
}
}

16
Kernel/kprintf.cpp
View File

@ -23,19 +23,19 @@ namespace Kernel {
extern Atomic<Graphics::Console*> g_boot_console;
}
static bool serial_debug;
static bool s_serial_debug_enabled;
// A recursive spinlock allows us to keep writing in the case where a
// page fault happens in the middle of a dbgln(), etc
static RecursiveSpinlock s_log_lock { LockRank::None };
void set_serial_debug(bool on_or_off)
void set_serial_debug_enabled(bool desired_state)
{
serial_debug = on_or_off;
s_serial_debug_enabled = desired_state;
}
int get_serial_debug()
bool is_serial_debug_enabled()
{
return serial_debug;
return s_serial_debug_enabled;
}
static void serial_putch(char ch)
@ -71,7 +71,7 @@ static void serial_putch(char ch)
static void critical_console_out(char ch)
{
if (serial_debug)
if (s_serial_debug_enabled)
serial_putch(ch);
// No need to output things to the real ConsoleDevice as no one is likely
// to read it (because we are in a fatal situation, so only print things and halt)
@ -87,7 +87,7 @@ static void critical_console_out(char ch)
static void console_out(char ch)
{
if (serial_debug)
if (s_serial_debug_enabled)
serial_putch(ch);
// It would be bad to reach the assert in ConsoleDevice()::the() and do a stack overflow
@ -151,7 +151,7 @@ int snprintf(char* buffer, size_t size, char const* fmt, ...)
static inline void internal_dbgputch(char ch)
{
if (serial_debug)
if (s_serial_debug_enabled)
serial_putch(ch);
IO::out8(IO::BOCHS_DEBUG_PORT, ch);
}

4
Kernel/kstdio.h
View File

@ -15,8 +15,8 @@ void kernelputstr(char const*, size_t);
void kernelcriticalputstr(char const*, size_t);
void kernelearlyputstr(char const*, size_t);
int snprintf(char* buf, size_t, char const* fmt, ...) __attribute__((format(printf, 3, 4)));
void set_serial_debug(bool on_or_off);
int get_serial_debug();
void set_serial_debug_enabled(bool desired_state);
bool is_serial_debug_enabled();
}
void dbgputstr(StringView view);