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w64: Fix data type of next_tb and tcg_qemu_tb_exec

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next_tb is the numeric value of a tcg target (= QEMU host) address.

Using tcg_target_ulong instead of unsigned long shows this and makes
the code portable for hosts with an unusual size of long (w64).

The type cast '(long)(next_tb & ~3)' was not needed (casting
unsigned long to long does not change the bits, and nor does
casting long to pointer for most (= all non w64) hosts.
It is removed here.

Macro or function tcg_qemu_tb_exec is used to set next_tb.
The function also returns next_tb. Therefore tcg_qemu_tb_exec
must return a tcg_target_ulong.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Stefan Weil 2012-03-16 23:50:54 +01:00 committed by Blue Swirl
parent 3bf7e40ab9
commit 69784eaec3
4 changed files with 7 additions and 7 deletions
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6
cpu-exec.c
View file

@ -55,7 +55,7 @@ void cpu_resume_from_signal(CPUArchState *env, void *puc)
static void cpu_exec_nocache(CPUArchState *env, int max_cycles,
TranslationBlock *orig_tb)
{
unsigned long next_tb;
tcg_target_ulong next_tb;
TranslationBlock *tb;
/* Should never happen.
@ -186,7 +186,7 @@ int cpu_exec(CPUArchState *env)
int ret, interrupt_request;
TranslationBlock *tb;
uint8_t *tc_ptr;
unsigned long next_tb;
tcg_target_ulong next_tb;
if (env->halted) {
if (!cpu_has_work(env)) {
@ -565,7 +565,7 @@ int cpu_exec(CPUArchState *env)
if ((next_tb & 3) == 2) {
/* Instruction counter expired. */
int insns_left;
tb = (TranslationBlock *)(long)(next_tb & ~3);
tb = (TranslationBlock *)(next_tb & ~3);
/* Restore PC. */
cpu_pc_from_tb(env, tb);
insns_left = env->icount_decr.u32;

2
tcg/tcg.h
View file

@ -589,5 +589,5 @@ extern uint8_t code_gen_prologue[];
/* TCG targets may use a different definition of tcg_qemu_tb_exec. */
#if !defined(tcg_qemu_tb_exec)
# define tcg_qemu_tb_exec(env, tb_ptr) \
((long REGPARM (*)(void *, void *))code_gen_prologue)(env, tb_ptr)
((tcg_target_ulong REGPARM (*)(void *, void *))code_gen_prologue)(env, tb_ptr)
#endif

2
tcg/tci/tcg-target.h
View file

@ -154,7 +154,7 @@ typedef enum {
void tci_disas(uint8_t opc);
unsigned long tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr);
tcg_target_ulong tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr);
#define tcg_qemu_tb_exec tcg_qemu_tb_exec
static inline void flush_icache_range(tcg_target_ulong start,

4
tci.c
View file

@ -429,9 +429,9 @@ static bool tci_compare64(uint64_t u0, uint64_t u1, TCGCond condition)
}
/* Interpret pseudo code in tb. */
unsigned long tcg_qemu_tb_exec(CPUArchState *cpustate, uint8_t *tb_ptr)
tcg_target_ulong tcg_qemu_tb_exec(CPUArchState *cpustate, uint8_t *tb_ptr)
{
unsigned long next_tb = 0;
tcg_target_ulong next_tb = 0;
env = cpustate;
tci_reg[TCG_AREG0] = (tcg_target_ulong)env;