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Fix backtraces by defining ksym_start & ksym_end if DDB is

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defined. The kernel linker doesn't deal with symbols of
type NOTYPE and typically gives the wrong symbol ($a) for
local symbols.

Obtained from:  Juniper Networks, Inc.
This commit is contained in:
Marcel Moolenaar 2011-01-22 00:32:12 +00:00
parent 7d5f64a903
commit 4cdbe2b967
1 changed files with 8 additions and 0 deletions
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8
sys/arm/mv/mv_machdep.c
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@ -118,6 +118,10 @@ extern unsigned char _edata[];
extern unsigned char __bss_start[];
extern unsigned char _end[];
#ifdef DDB
extern vm_offset_t ksym_start, ksym_end;
#endif
extern u_int data_abort_handler_address;
extern u_int prefetch_abort_handler_address;
extern u_int undefined_handler_address;
@ -330,6 +334,10 @@ initarm(void *mdp, void *unused __unused)
dtbp = MD_FETCH(kmdp, MODINFOMD_DTBP, vm_offset_t);
lastaddr = MD_FETCH(kmdp, MODINFOMD_KERNEND,
vm_offset_t);
#ifdef DDB
ksym_start = MD_FETCH(kmdp, MODINFOMD_SSYM, uintptr_t);
ksym_end = MD_FETCH(kmdp, MODINFOMD_ESYM, uintptr_t);
#endif
}
} else {