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powerpc: Print the kernel load address at the end of prom_init

PATCH Applied Benjamin Herrenschmidt 2 participants 2 messages Aug 10, 2016 – Aug 11, 2016 PowerPC

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Benjamin Herrenschmidt

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PATCH 1/1 powerpc: Print the kernel load address at the end of prom_init

This makes it easier to debug crashes that happen very early before the kernel takes over Open Firmware by allowing us to relate the OF reported crashing addresses to offsets within the kernel.

Signed-off-by Benjamin Herrenschmidt <[email protected]>

---

arch/powerpc/kernel/prom_init.c +1 -1
index 6ee4b72..2ea0ea5 100644
@@ -2940,7 +2940,7 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
 
 	/* Don't print anything after quiesce under OPAL, it crashes OFW */
 	if (of_platform != PLATFORM_OPAL) {
-		prom_printf("Booting Linux via __start() ...\n");
+		prom_printf("Booting Linux via __start() @%lx ...\n", kbase);
 		prom_debug("->dt_header_start=0x%x\n", hdr);
 	}