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exec: refactor cpu_restore_state

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Refactor common code around calls to cpu_restore_state().

tb_find_pc() has now no external users, make it static.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2012-12-04 20:16:07 +00:00
parent 5b6dd8683d
commit a8a826a3c3
23 changed files with 65 additions and 172 deletions
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1
target-sparc/cpu.h
View file

@ -710,7 +710,6 @@ uint64_t cpu_tick_get_count(CPUTimer *timer);
void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit);
trap_state* cpu_tsptr(CPUSPARCState* env);
#endif
void cpu_restore_state2(CPUSPARCState *env, uintptr_t retaddr);
#define TB_FLAG_FPU_ENABLED (1 << 4)
#define TB_FLAG_AM_ENABLED (1 << 5)

12
target-sparc/helper.c
View file

@ -75,7 +75,7 @@ static target_ulong helper_udiv_common(CPUSPARCState *env, target_ulong a,
x1 = (b & 0xffffffff);
if (x1 == 0) {
cpu_restore_state2(env, GETPC());
cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
}
@ -114,7 +114,7 @@ static target_ulong helper_sdiv_common(CPUSPARCState *env, target_ulong a,
x1 = (b & 0xffffffff);
if (x1 == 0) {
cpu_restore_state2(env, GETPC());
cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
}
@ -147,7 +147,7 @@ int64_t helper_sdivx(CPUSPARCState *env, int64_t a, int64_t b)
{
if (b == 0) {
/* Raise divide by zero trap. */
cpu_restore_state2(env, GETPC());
cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
} else if (b == -1) {
/* Avoid overflow trap with i386 divide insn. */
@ -161,7 +161,7 @@ uint64_t helper_udivx(CPUSPARCState *env, uint64_t a, uint64_t b)
{
if (b == 0) {
/* Raise divide by zero trap. */
cpu_restore_state2(env, GETPC());
cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
}
return a / b;
@ -193,7 +193,7 @@ target_ulong helper_taddcctv(CPUSPARCState *env, target_ulong src1,
return dst;
tag_overflow:
cpu_restore_state2(env, GETPC());
cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_TOVF);
}
@ -222,6 +222,6 @@ target_ulong helper_tsubcctv(CPUSPARCState *env, target_ulong src1,
return dst;
tag_overflow:
cpu_restore_state2(env, GETPC());
cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_TOVF);
}

24
target-sparc/ldst_helper.c
View file

@ -2393,22 +2393,6 @@ void cpu_unassigned_access(CPUSPARCState *env, hwaddr addr,
#endif
#endif
/* XXX: make it generic ? */
void cpu_restore_state2(CPUSPARCState *env, uintptr_t retaddr)
{
TranslationBlock *tb;
if (retaddr) {
/* now we have a real cpu fault */
tb = tb_find_pc(retaddr);
if (tb) {
/* the PC is inside the translated code. It means that we have
a virtual CPU fault */
cpu_restore_state(tb, env, retaddr);
}
}
}
#if !defined(CONFIG_USER_ONLY)
static void QEMU_NORETURN do_unaligned_access(CPUSPARCState *env,
target_ulong addr, int is_write,
@ -2418,7 +2402,9 @@ static void QEMU_NORETURN do_unaligned_access(CPUSPARCState *env,
printf("Unaligned access to 0x" TARGET_FMT_lx " from 0x" TARGET_FMT_lx
"\n", addr, env->pc);
#endif
cpu_restore_state2(env, retaddr);
if (retaddr) {
cpu_restore_state(env, retaddr);
}
helper_raise_exception(env, TT_UNALIGNED);
}
@ -2433,7 +2419,9 @@ void tlb_fill(CPUSPARCState *env, target_ulong addr, int is_write, int mmu_idx,
ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (ret) {
cpu_restore_state2(env, retaddr);
if (retaddr) {
cpu_restore_state(env, retaddr);
}
cpu_loop_exit(env);
}
}