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kernel: support log system for fatal errors

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We introduce a new z_fatal_print() API and replace all
occurrences of exception handling code to use it.
This routes messages to the logging subsystem if enabled.
Otherwise, messages are sent to printk().

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2019-07-15 22:03:56 -07:00 • committed by Andrew Boie
commit 8a9e8e0cd7
15 changed files with 289 additions and 270 deletions
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14
arch/x86_64/core/x86_64.c
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@ -51,13 +51,13 @@ void z_unhandled_vector(int vector, int err, struct xuk_entry_frame *f)
/* Yes, there are five regsiters missing. See notes on
* xuk_entry_frame/xuk_stack_frame.
*/
printk("*** FATAL ERROR vector %d code %d\n", vector, err);
printk("*** RIP %d:0x%llx RSP %d:0x%llx RFLAGS 0x%llx\n",
(int)f->cs, f->rip, (int)f->ss, f->rsp, f->rflags);
printk("*** RAX 0x%llx RCX 0x%llx RDX 0x%llx RSI 0x%llx RDI 0x%llx\n",
f->rax, f->rcx, f->rdx, f->rsi, f->rdi);
printk("*** R8 0x%llx R9 0x%llx R10 0x%llx R11 0x%llx\n",
f->r8, f->r9, f->r10, f->r11);
z_fatal_print("*** FATAL ERROR vector %d code %d", vector, err);
z_fatal_print("*** RIP %d:0x%llx RSP %d:0x%llx RFLAGS 0x%llx",
(int)f->cs, f->rip, (int)f->ss, f->rsp, f->rflags);
z_fatal_print("*** RAX 0x%llx RCX 0x%llx RDX 0x%llx RSI 0x%llx RDI 0x%llx",
f->rax, f->rcx, f->rdx, f->rsi, f->rdi);
z_fatal_print("*** R8 0x%llx R9 0x%llx R10 0x%llx R11 0x%llx",
f->r8, f->r9, f->r10, f->r11);
/* FIXME: Why isn't xuk_entry_frame a NANO_ESF? */
z_fatal_error(x86_64_except_reason, NULL);