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panic.h File Reference
#include "mos/platform/platform_defs.h"
#include "mos/syslog/printk.h"
#include <mos/types.h>
#include <stdarg.h>
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Go to the source code of this file.

Classes

struct  panic_hook_t
 
struct  panic_point_t
 

Macros

#define MOS_EMIT_PANIC_HOOK(e, f, n)
 
#define MOS_PANIC_HOOK_FEAT(_feat, _f, _n)
 
#define MOS_PANIC_HOOK(_f, _name)
 
#define MOS_MAKE_PANIC_POINT(panic_instruction, file, func, line)
 
#define mos_panic(fmt, ...)
 
#define mos_panic_inline(fmt, ...)
 

Typedefs

typedef void kmsg_handler_t(const char *func, u32 line, const char *fmt, va_list args)
 

Functions

 MOS_STATIC_ASSERT (sizeof(panic_hook_t)==32, "panic_hook_t size mismatch")
 
void kwarn_handler_set (kmsg_handler_t *handler)
 
void kwarn_handler_remove (void)
 
 __BEGIN_DECLS (3, 4) void mos_kwarn(const char *func
 
u32 const char void try_handle_kernel_panics (ptr_t ip)
 
void try_handle_kernel_panics_at (const panic_point_t *point)
 

Variables

u32 line
 
u32 const char * fmt
 

Macro Definition Documentation

◆ MOS_EMIT_PANIC_HOOK

#define MOS_EMIT_PANIC_HOOK ( e,
f,
n )
Value:
MOS_PUT_IN_SECTION(".mos.panic_hooks", panic_hook_t, f##_hook, { .enabled = e, .hook = f, .name = n })
MOS_PUT_IN_SECTION
#define MOS_PUT_IN_SECTION(_section, _struct, _var,...)
Definition mos_global.h:125
panic_hook_t
Definition panic.h:14

Definition at line 30 of file panic.h.

◆ MOS_PANIC_HOOK_FEAT

#define MOS_PANIC_HOOK_FEAT ( _feat,
_f,
_n )
Value:
MOS_EMIT_PANIC_HOOK(mos_debug_enabled_ptr(_feat), _f, _n)
mos_debug_enabled_ptr
#define mos_debug_enabled_ptr(name)
Definition debug.h:72
MOS_EMIT_PANIC_HOOK
#define MOS_EMIT_PANIC_HOOK(e, f, n)
Definition panic.h:30

Definition at line 32 of file panic.h.

◆ MOS_PANIC_HOOK

#define MOS_PANIC_HOOK ( _f,
_name )
Value:
MOS_EMIT_PANIC_HOOK(NULL, _f, _name)
NULL
#define NULL
Definition pb_syshdr.h:46

Definition at line 33 of file panic.h.

◆ MOS_MAKE_PANIC_POINT

#define MOS_MAKE_PANIC_POINT ( panic_instruction,
file,
func,
line )
Value:
__asm__ volatile("1: " panic_instruction "\n\t" \
".pushsection .mos.panic_list,\"aw\"\n\t" MOS_PLATFORM_PANIC_POINT_ASM ".popsection\n\t" \
"\n\t" \
: \
: "i"(file), "i"(func), "i"(line) \
: "memory")
line
u32 line
Definition panic.h:40
MOS_PLATFORM_PANIC_POINT_ASM
#define MOS_PLATFORM_PANIC_POINT_ASM
Definition platform_defs.h:38

Definition at line 47 of file panic.h.

◆ mos_panic

#define mos_panic ( fmt,
... )
Value:
do \
{ \
pr_emerg(fmt, ##__VA_ARGS__); \
MOS_MAKE_PANIC_POINT(MOS_PLATFORM_PANIC_INSTR, __FILE__, __func__, __LINE__); \
__builtin_unreachable(); \
} while (0)
fmt
u32 const char * fmt
Definition panic.h:40
MOS_PLATFORM_PANIC_INSTR
#define MOS_PLATFORM_PANIC_INSTR
Definition platform_defs.h:35

Definition at line 55 of file panic.h.

Referenced by __stack_chk_fail(), acpi_find_rsdp(), cpio_i_iterate_dir(), cpio_read_metadata(), dentry_check_refstat(), dentry_resolve_follow_symlink(), do_handle_sdt_header(), do_iterate_sdts(), extract_exact_range(), futex_wake(), hashmap_init(), initrd_read(), io_mmap(), ipc_client_io_close(), ipc_control_io_close(), ipc_server_io_close(), lapic_memory_setup(), limine_entry(), madt_parse_table(), mm_handle_fault(), mos_start_kernel(), mos_test_engine_run_tests(), platform_ap_entry(), platform_jump_to_signal_handler(), platform_restore_from_signal_handler(), platform_shutdown(), platform_startup_late(), platform_syscall_setup_restart_context(), platform_syscall_store_retval(), process_do_fork(), process_exit(), register_sysfs_acpi_node(), register_sysfs_acpi_rsdp(), slab_allocate_mem(), stack_grow(), stack_pop(), stack_push(), test_engine_warning_handler(), tmpfs_create_inode(), vfs_register_filesystem(), x86_handle_exception(), and x86_handle_nmi().

◆ mos_panic_inline

#define mos_panic_inline ( fmt,
... )
Value:
do \
{ \
pr_emerg(fmt, ##__VA_ARGS__); \
static const panic_point_t point = { .ip = 0, .file = __FILE__, .line = __LINE__, .func = __func__ }; \
try_handle_kernel_panics_at(&point); \
} while (0)
panic_point_t
Definition panic.h:24

Definition at line 63 of file panic.h.

Typedef Documentation

◆ kmsg_handler_t

typedef void kmsg_handler_t(const char *func, u32 line, const char *fmt, va_list args)

Definition at line 11 of file panic.h.

Function Documentation

◆ MOS_STATIC_ASSERT()

MOS_STATIC_ASSERT ( sizeof(panic_hook_t) = =32,
"panic_hook_t size mismatch"  )

◆ kwarn_handler_set()

void kwarn_handler_set ( kmsg_handler_t * handler)

Definition at line 36 of file panic.c.

Referenced by mos_test_engine_run_tests().

◆ kwarn_handler_remove()

void kwarn_handler_remove ( void )

Definition at line 42 of file panic.c.

Referenced by mos_test_engine_run_tests().

◆ __BEGIN_DECLS()

__BEGIN_DECLS ( 3 ,
4  ) const

◆ try_handle_kernel_panics()

u32 const char void try_handle_kernel_panics ( ptr_t ip)

Definition at line 67 of file panic.c.

Referenced by riscv64_trap_handler(), and x86_handle_exception().

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◆ try_handle_kernel_panics_at()

void try_handle_kernel_panics_at ( const panic_point_t * point)

Definition at line 78 of file panic.c.

Referenced by try_handle_kernel_panics().

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Variable Documentation

◆ line

u32 line

Definition at line 40 of file panic.h.

◆ fmt

u32 const char* fmt

Definition at line 40 of file panic.h.