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Kernel: Reset on panic in self-test mode

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This makes a kernel panic immediately fail the on-target CI job.
Otherwise the failed job looks like a test timeout unless one digs into
the details of the job.
This commit is contained in:
Ali Mohammad Pur 2021-07-26 00:10:41 +04:30 • committed by Ali Mohammad Pur
parent 466e2a2fb7
commit 6b606771b5
1 changed files with 15 additions and 2 deletions
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17
Kernel/Panic.cpp
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@ -6,16 +6,29 @@
#include <AK/Format.h> #include <AK/Format.h>
#include <Kernel/Arch/x86/Processor.h> #include <Kernel/Arch/x86/Processor.h>
#include <Kernel/CommandLine.h>
#include <Kernel/KSyms.h> #include <Kernel/KSyms.h>
#include <Kernel/Panic.h> #include <Kernel/Panic.h>
namespace Kernel { namespace Kernel {
[[noreturn]] static void __reset()
{
// FIXME: This works for i686/x86_64, but needs to be ported to any other arch when needed.
asm(
"lidt 0\n"
"movl $0, 0\n");
__builtin_unreachable();
}
void __panic(const char* file, unsigned int line, const char* function) void __panic(const char* file, unsigned int line, const char* function)
{ {
critical_dmesgln("at {}:{} in {}", file, line, function); critical_dmesgln("at {}:{} in {}", file, line, function);
dump_backtrace(); dump_backtrace();
Processor::halt(); if (kernel_command_line().boot_mode() == BootMode::SelfTest)
__reset();
else
Processor::halt();
} }
} }