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kgdb: remove post_primary_code references 

Remove all the references to the kgdb_post_primary_code.  This
function serves no useful purpose because you can obtain the same
information from the "struct kgdb_state *ks" from with in the
debugger, if for some reason you want the data.

Also remove the unintentional duplicate assignment for ks->ex_vector.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
This commit is contained in:
Jason Wessel 2009-04-27 10:58:06 -05:00
parent 84c08fd61e
commit 98ec1878ca
3 changed files with 0 additions and 51 deletions
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29
arch/x86/kernel/kgdb.c
View File

@ -47,20 +47,8 @@
#include <asm/debugreg.h>
#include <asm/apicdef.h>
#include <asm/system.h>
#include <asm/apic.h>
/*
* Put the error code here just in case the user cares:
*/
static int gdb_x86errcode;
/*
* Likewise, the vector number here (since GDB only gets the signal
* number through the usual means, and that's not very specific):
*/
static int gdb_x86vector = -1;
/**
* pt_regs_to_gdb_regs - Convert ptrace regs to GDB regs
* @gdb_regs: A pointer to hold the registers in the order GDB wants.
@ -399,23 +387,6 @@ void kgdb_disable_hw_debug(struct pt_regs *regs)
}
}
/**
* kgdb_post_primary_code - Save error vector/code numbers.
* @regs: Original pt_regs.
* @e_vector: Original error vector.
* @err_code: Original error code.
*
* This is needed on architectures which support SMP and KGDB.
* This function is called after all the slave cpus have been put
* to a know spin state and the primary CPU has control over KGDB.
*/
void kgdb_post_primary_code(struct pt_regs *regs, int e_vector, int err_code)
{
/* primary processor is completely in the debugger */
gdb_x86vector = e_vector;
gdb_x86errcode = err_code;
}
#ifdef CONFIG_SMP
/**
* kgdb_roundup_cpus - Get other CPUs into a holding pattern

14
include/linux/kgdb.h
View File

@ -35,20 +35,6 @@ struct pt_regs;
*/
extern int kgdb_skipexception(int exception, struct pt_regs *regs);
/**
* kgdb_post_primary_code - (optional) Save error vector/code numbers.
* @regs: Original pt_regs.
* @e_vector: Original error vector.
* @err_code: Original error code.
*
* This is usually needed on architectures which support SMP and
* KGDB. This function is called after all the secondary cpus have
* been put to a know spin state and the primary CPU has control over
* KGDB.
*/
extern void kgdb_post_primary_code(struct pt_regs *regs, int e_vector,
int err_code);
/**
* kgdb_disable_hw_debug - (optional) Disable hardware debugging hook
* @regs: Current &struct pt_regs.

8
kernel/debug/debug_core.c
View File

@ -203,12 +203,6 @@ int __weak kgdb_skipexception(int exception, struct pt_regs *regs)
return 0;
}
void __weak
kgdb_post_primary_code(struct pt_regs *regs, int e_vector, int err_code)
{
return;
}
/**
* kgdb_disable_hw_debug - Disable hardware debugging while we in kgdb.
* @regs: Current &struct pt_regs.
@ -588,7 +582,6 @@ static int kgdb_cpu_enter(struct kgdb_state *ks, struct pt_regs *regs)
* At this point the primary processor is completely
* in the debugger and all secondary CPUs are quiescent
*/
kgdb_post_primary_code(ks->linux_regs, ks->ex_vector, ks->err_code);
dbg_deactivate_sw_breakpoints();
kgdb_single_step = 0;
kgdb_contthread = current;
@ -678,7 +671,6 @@ kgdb_handle_exception(int evector, int signo, int ecode, struct pt_regs *regs)
ks->cpu = raw_smp_processor_id();
ks->ex_vector = evector;
ks->signo = signo;
ks->ex_vector = evector;
ks->err_code = ecode;
ks->kgdb_usethreadid = 0;
ks->linux_regs = regs;