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[panic] Allow assert/panic to take optional user cpu_state

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In places where the "user" state is available, like interrupt handlers,
panic() and kassert() can now take an optional pointer to that user
cpu_state structure, and the panic handler will print that out as well.
This commit is contained in:
Justin C. Miller
2022-01-15 09:33:38 -08:00
parent 421fe33dc0
commit 4d9b33ecd4
8 changed files with 32 additions and 19 deletions
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10
src/kernel/interrupts.cpp
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@@ -91,11 +91,11 @@ isr_handler(cpu_state *regs)
asm volatile ("mov %%dr5, %%r13" ::: "r13");
asm volatile ("mov %%dr6, %%r14" ::: "r14");
asm volatile ("mov %%dr7, %%r15" ::: "r15");
kassert(false, "Debug exception");
kassert(false, "Debug exception", regs);
break;
case isr::isrDoubleFault:
kassert(false, "Double fault");
kassert(false, "Double fault", regs);
break;
case isr::isrGPFault:
@@ -113,7 +113,7 @@ isr_handler(cpu_state *regs)
snprintf(message, sizeof(message), "General Protection Fault, error:%lx%s",
regs->errorcode, regs->errorcode & 1 ? " external" : "");
}
kassert(false, message);
kassert(false, message, regs);
break;
case isr::isrPageFault: {
@@ -138,7 +138,7 @@ isr_handler(cpu_state *regs)
(regs->errorcode & 0x04) ? " user" : "",
(regs->errorcode & 0x08) ? " reserved" : "",
(regs->errorcode & 0x10) ? " ip" : "");
kassert(false, message);
kassert(false, message, regs);
}
break;
@@ -156,7 +156,7 @@ isr_handler(cpu_state *regs)
default:
snprintf(message, sizeof(message), "Unknown interrupt 0x%lx", regs->interrupt);
kassert(false, message);
kassert(false, message, regs);
}
// Return the IST for this vector to what it was