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target-i386: drop usage of prev_debug_excp_handler

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Chains of exception handlers are currently unused feature, drop it
for now so as not to expose prev_debug_excp_handler at global
scope when moving tcg initialization into target-i386/cpu.c

Later we probably could re-invent better interface for this.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
This commit is contained in:
Igor Mammedov 2012-06-19 14:46:29 +02:00
parent cfee021849
commit 130a038550
1 changed files with 1 additions and 6 deletions
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7
target-i386/helper.c
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@ -941,8 +941,6 @@ int check_hw_breakpoints(CPUX86State *env, int force_dr6_update)
return hit_enabled; return hit_enabled;
} }
static CPUDebugExcpHandler *prev_debug_excp_handler;
static void breakpoint_handler(CPUX86State *env) static void breakpoint_handler(CPUX86State *env)
{ {
CPUBreakpoint *bp; CPUBreakpoint *bp;
@ -965,8 +963,6 @@ static void breakpoint_handler(CPUX86State *env)
break; break;
} }
} }
if (prev_debug_excp_handler)
prev_debug_excp_handler(env);
} }
typedef struct MCEInjectionParams { typedef struct MCEInjectionParams {
@ -1166,8 +1162,7 @@ X86CPU *cpu_x86_init(const char *cpu_model)
inited = 1; inited = 1;
optimize_flags_init(); optimize_flags_init();
#ifndef CONFIG_USER_ONLY #ifndef CONFIG_USER_ONLY
prev_debug_excp_handler = cpu_set_debug_excp_handler(breakpoint_handler);
cpu_set_debug_excp_handler(breakpoint_handler);
#endif #endif
} }
if (cpu_x86_register(cpu, cpu_model) < 0) { if (cpu_x86_register(cpu, cpu_model) < 0) {