diff mbox

tb: consistently use uint32_t for tb->flags

Message ID 1460049562-23517-1-git-send-email-cota@braap.org
State New
Headers show

Commit Message

Emilio Cota April 7, 2016, 5:19 p.m. UTC
We are inconsistent with the type of tb->flags: usage varies loosely
between int and uint64_t. Settle to uint32_t everywhere, which is
superior to both: at least one target (aarch64) uses the most significant
bit in the u32, and uint64_t is wasteful.

Compile-tested for all targets.

Suggested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Suggested-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
---
 cpu-exec.c              |  6 +++---
 exec.c                  |  2 +-
 hw/i386/kvmvapic.c      |  2 +-
 include/exec/exec-all.h |  5 +++--
 target-alpha/cpu.h      |  2 +-
 target-arm/cpu.h        |  2 +-
 target-cris/cpu.h       |  2 +-
 target-i386/cpu.h       |  2 +-
 target-i386/translate.c |  2 +-
 target-lm32/cpu.h       |  2 +-
 target-m68k/cpu.h       |  2 +-
 target-microblaze/cpu.h |  2 +-
 target-mips/cpu.h       |  2 +-
 target-moxie/cpu.h      |  2 +-
 target-openrisc/cpu.h   |  2 +-
 target-ppc/cpu.h        |  2 +-
 target-s390x/cpu.h      |  2 +-
 target-sh4/cpu.h        |  2 +-
 target-sparc/cpu.h      |  2 +-
 target-tilegx/cpu.h     |  2 +-
 target-tricore/cpu.h    |  2 +-
 target-unicore32/cpu.h  |  2 +-
 target-xtensa/cpu.h     |  2 +-
 translate-all.c         | 10 +++++-----
 24 files changed, 32 insertions(+), 31 deletions(-)

Comments

Emilio Cota April 7, 2016, 5:23 p.m. UTC | #1
On Thu, Apr 07, 2016 at 13:19:22 -0400, Emilio G. Cota wrote:
> We are inconsistent with the type of tb->flags: usage varies loosely
> between int and uint64_t. Settle to uint32_t everywhere, which is
> superior to both: at least one target (aarch64) uses the most significant
> bit in the u32, and uint64_t is wasteful.
> 
> Compile-tested for all targets.
> 
> Suggested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
> Suggested-by: Richard Henderson <rth@twiddle.net>
> Signed-off-by: Emilio G. Cota <cota@braap.org>

Context:
  https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01110.html

Thanks,

		Emilio
Richard Henderson April 7, 2016, 6:10 p.m. UTC | #2
On 04/07/2016 10:19 AM, Emilio G. Cota wrote:
> We are inconsistent with the type of tb->flags: usage varies loosely
> between int and uint64_t. Settle to uint32_t everywhere, which is
> superior to both: at least one target (aarch64) uses the most significant
> bit in the u32, and uint64_t is wasteful.
>
> Compile-tested for all targets.
>
> Suggested-by: Laurent Desnogues<laurent.desnogues@gmail.com>
> Suggested-by: Richard Henderson<rth@twiddle.net>
> Signed-off-by: Emilio G. Cota<cota@braap.org>
> ---
>   cpu-exec.c              |  6 +++---
>   exec.c                  |  2 +-
>   hw/i386/kvmvapic.c      |  2 +-
>   include/exec/exec-all.h |  5 +++--
>   target-alpha/cpu.h      |  2 +-
>   target-arm/cpu.h        |  2 +-
>   target-cris/cpu.h       |  2 +-
>   target-i386/cpu.h       |  2 +-
>   target-i386/translate.c |  2 +-
>   target-lm32/cpu.h       |  2 +-
>   target-m68k/cpu.h       |  2 +-
>   target-microblaze/cpu.h |  2 +-
>   target-mips/cpu.h       |  2 +-
>   target-moxie/cpu.h      |  2 +-
>   target-openrisc/cpu.h   |  2 +-
>   target-ppc/cpu.h        |  2 +-
>   target-s390x/cpu.h      |  2 +-
>   target-sh4/cpu.h        |  2 +-
>   target-sparc/cpu.h      |  2 +-
>   target-tilegx/cpu.h     |  2 +-
>   target-tricore/cpu.h    |  2 +-
>   target-unicore32/cpu.h  |  2 +-
>   target-xtensa/cpu.h     |  2 +-
>   translate-all.c         | 10 +++++-----
>   24 files changed, 32 insertions(+), 31 deletions(-)

Reviewed-by: Richard Henderson <rth@twiddle.net>


r~
Edgar E. Iglesias April 7, 2016, 7:55 p.m. UTC | #3
On Thu, Apr 07, 2016 at 01:19:22PM -0400, Emilio G. Cota wrote:
> We are inconsistent with the type of tb->flags: usage varies loosely
> between int and uint64_t. Settle to uint32_t everywhere, which is
> superior to both: at least one target (aarch64) uses the most significant
> bit in the u32, and uint64_t is wasteful.
> 
> Compile-tested for all targets.

Looks good. I ran tests on CRIS, MicroBlaze and a few mixed ARM and PPC images I've got.

Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>


> 
> Suggested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
> Suggested-by: Richard Henderson <rth@twiddle.net>
> Signed-off-by: Emilio G. Cota <cota@braap.org>
> ---
>  cpu-exec.c              |  6 +++---
>  exec.c                  |  2 +-
>  hw/i386/kvmvapic.c      |  2 +-
>  include/exec/exec-all.h |  5 +++--
>  target-alpha/cpu.h      |  2 +-
>  target-arm/cpu.h        |  2 +-
>  target-cris/cpu.h       |  2 +-
>  target-i386/cpu.h       |  2 +-
>  target-i386/translate.c |  2 +-
>  target-lm32/cpu.h       |  2 +-
>  target-m68k/cpu.h       |  2 +-
>  target-microblaze/cpu.h |  2 +-
>  target-mips/cpu.h       |  2 +-
>  target-moxie/cpu.h      |  2 +-
>  target-openrisc/cpu.h   |  2 +-
>  target-ppc/cpu.h        |  2 +-
>  target-s390x/cpu.h      |  2 +-
>  target-sh4/cpu.h        |  2 +-
>  target-sparc/cpu.h      |  2 +-
>  target-tilegx/cpu.h     |  2 +-
>  target-tricore/cpu.h    |  2 +-
>  target-unicore32/cpu.h  |  2 +-
>  target-xtensa/cpu.h     |  2 +-
>  translate-all.c         | 10 +++++-----
>  24 files changed, 32 insertions(+), 31 deletions(-)
> 
> diff --git a/cpu-exec.c b/cpu-exec.c
> index bbfcbfb..debc65c 100644
> --- a/cpu-exec.c
> +++ b/cpu-exec.c
> @@ -220,7 +220,7 @@ static void cpu_exec_nocache(CPUState *cpu, int max_cycles,
>  static TranslationBlock *tb_find_physical(CPUState *cpu,
>                                            target_ulong pc,
>                                            target_ulong cs_base,
> -                                          uint64_t flags)
> +                                          uint32_t flags)
>  {
>      CPUArchState *env = (CPUArchState *)cpu->env_ptr;
>      TranslationBlock *tb, **ptb1;
> @@ -271,7 +271,7 @@ static TranslationBlock *tb_find_physical(CPUState *cpu,
>  static TranslationBlock *tb_find_slow(CPUState *cpu,
>                                        target_ulong pc,
>                                        target_ulong cs_base,
> -                                      uint64_t flags)
> +                                      uint32_t flags)
>  {
>      TranslationBlock *tb;
>  
> @@ -314,7 +314,7 @@ static inline TranslationBlock *tb_find_fast(CPUState *cpu)
>      CPUArchState *env = (CPUArchState *)cpu->env_ptr;
>      TranslationBlock *tb;
>      target_ulong cs_base, pc;
> -    int flags;
> +    uint32_t flags;
>  
>      /* we record a subset of the CPU state. It will
>         always be the same before a given translated block
> diff --git a/exec.c b/exec.c
> index f46e596..bf3ab36 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -2083,7 +2083,7 @@ static void check_watchpoint(int offset, int len, MemTxAttrs attrs, int flags)
>      target_ulong pc, cs_base;
>      target_ulong vaddr;
>      CPUWatchpoint *wp;
> -    int cpu_flags;
> +    uint32_t cpu_flags;
>  
>      if (cpu->watchpoint_hit) {
>          /* We re-entered the check after replacing the TB. Now raise
> diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c
> index c69f374..4bb695d 100644
> --- a/hw/i386/kvmvapic.c
> +++ b/hw/i386/kvmvapic.c
> @@ -397,7 +397,7 @@ static void patch_instruction(VAPICROMState *s, X86CPU *cpu, target_ulong ip)
>      uint32_t imm32;
>      target_ulong current_pc = 0;
>      target_ulong current_cs_base = 0;
> -    int current_flags = 0;
> +    uint32_t current_flags = 0;
>  
>      if (smp_cpus == 1) {
>          handlers = &s->rom_state.up;
> diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
> index 7362095..c75fb3a 100644
> --- a/include/exec/exec-all.h
> +++ b/include/exec/exec-all.h
> @@ -76,7 +76,8 @@ bool cpu_restore_state(CPUState *cpu, uintptr_t searched_pc);
>  void QEMU_NORETURN cpu_resume_from_signal(CPUState *cpu, void *puc);
>  void QEMU_NORETURN cpu_io_recompile(CPUState *cpu, uintptr_t retaddr);
>  TranslationBlock *tb_gen_code(CPUState *cpu,
> -                              target_ulong pc, target_ulong cs_base, int flags,
> +                              target_ulong pc, target_ulong cs_base,
> +                              uint32_t flags,
>                                int cflags);
>  void cpu_exec_init(CPUState *cpu, Error **errp);
>  void QEMU_NORETURN cpu_loop_exit(CPUState *cpu);
> @@ -235,7 +236,7 @@ static inline void tlb_flush_by_mmuidx(CPUState *cpu, ...)
>  struct TranslationBlock {
>      target_ulong pc;   /* simulated PC corresponding to this block (EIP + CS base) */
>      target_ulong cs_base; /* CS base for this block */
> -    uint64_t flags; /* flags defining in which context the code was generated */
> +    uint32_t flags; /* flags defining in which context the code was generated */
>      uint16_t size;      /* size of target code for this block (1 <=
>                             size <= TARGET_PAGE_SIZE) */
>      uint16_t icount;
> diff --git a/target-alpha/cpu.h b/target-alpha/cpu.h
> index 420f2a5..b25d7d0 100644
> --- a/target-alpha/cpu.h
> +++ b/target-alpha/cpu.h
> @@ -465,7 +465,7 @@ enum {
>  };
>  
>  static inline void cpu_get_tb_cpu_state(CPUAlphaState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *pflags)
> +                                        target_ulong *cs_base, uint32_t *pflags)
>  {
>      int flags = 0;
>  
> diff --git a/target-arm/cpu.h b/target-arm/cpu.h
> index 066ff67..9deef86 100644
> --- a/target-arm/cpu.h
> +++ b/target-arm/cpu.h
> @@ -2117,7 +2117,7 @@ static inline bool arm_cpu_bswap_data(CPUARMState *env)
>  #endif
>  
>  static inline void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      if (is_a64(env)) {
>          *pc = env->pc;
> diff --git a/target-cris/cpu.h b/target-cris/cpu.h
> index 415cf91..a492fc6 100644
> --- a/target-cris/cpu.h
> +++ b/target-cris/cpu.h
> @@ -249,7 +249,7 @@ int cris_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
>  #include "exec/cpu-all.h"
>  
>  static inline void cpu_get_tb_cpu_state(CPUCRISState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->pc;
>      *cs_base = 0;
> diff --git a/target-i386/cpu.h b/target-i386/cpu.h
> index 732eb6d..444fda9 100644
> --- a/target-i386/cpu.h
> +++ b/target-i386/cpu.h
> @@ -1269,7 +1269,7 @@ void tcg_x86_init(void);
>  #include "exec/exec-all.h"
>  
>  static inline void cpu_get_tb_cpu_state(CPUX86State *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *cs_base = env->segs[R_CS].base;
>      *pc = *cs_base + env->eip;
> diff --git a/target-i386/translate.c b/target-i386/translate.c
> index 1a1214d..3a32f65 100644
> --- a/target-i386/translate.c
> +++ b/target-i386/translate.c
> @@ -8178,7 +8178,7 @@ void gen_intermediate_code(CPUX86State *env, TranslationBlock *tb)
>      CPUState *cs = CPU(cpu);
>      DisasContext dc1, *dc = &dc1;
>      target_ulong pc_ptr;
> -    uint64_t flags;
> +    uint32_t flags;
>      target_ulong pc_start;
>      target_ulong cs_base;
>      int num_insns;
> diff --git a/target-lm32/cpu.h b/target-lm32/cpu.h
> index f220fc0..6a0d297 100644
> --- a/target-lm32/cpu.h
> +++ b/target-lm32/cpu.h
> @@ -226,7 +226,7 @@ int lm32_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
>  #include "exec/cpu-all.h"
>  
>  static inline void cpu_get_tb_cpu_state(CPULM32State *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->pc;
>      *cs_base = 0;
> diff --git a/target-m68k/cpu.h b/target-m68k/cpu.h
> index 48b4c87..d2f467c 100644
> --- a/target-m68k/cpu.h
> +++ b/target-m68k/cpu.h
> @@ -230,7 +230,7 @@ int m68k_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
>  #include "exec/cpu-all.h"
>  
>  static inline void cpu_get_tb_cpu_state(CPUM68KState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->pc;
>      *cs_base = 0;
> diff --git a/target-microblaze/cpu.h b/target-microblaze/cpu.h
> index 2f7335e..bf74e2c 100644
> --- a/target-microblaze/cpu.h
> +++ b/target-microblaze/cpu.h
> @@ -322,7 +322,7 @@ int mb_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
>  #include "exec/cpu-all.h"
>  
>  static inline void cpu_get_tb_cpu_state(CPUMBState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->sregs[SR_PC];
>      *cs_base = 0;
> diff --git a/target-mips/cpu.h b/target-mips/cpu.h
> index 866924d..53e8262 100644
> --- a/target-mips/cpu.h
> +++ b/target-mips/cpu.h
> @@ -839,7 +839,7 @@ static inline void restore_pamask(CPUMIPSState *env)
>  }
>  
>  static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->active_tc.PC;
>      *cs_base = 0;
> diff --git a/target-moxie/cpu.h b/target-moxie/cpu.h
> index 4ee2077..1b46e52 100644
> --- a/target-moxie/cpu.h
> +++ b/target-moxie/cpu.h
> @@ -132,7 +132,7 @@ static inline int cpu_mmu_index(CPUMoxieState *env, bool ifetch)
>  #include "exec/exec-all.h"
>  
>  static inline void cpu_get_tb_cpu_state(CPUMoxieState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->pc;
>      *cs_base = 0;
> diff --git a/target-openrisc/cpu.h b/target-openrisc/cpu.h
> index 4b63f25..ed818af 100644
> --- a/target-openrisc/cpu.h
> +++ b/target-openrisc/cpu.h
> @@ -392,7 +392,7 @@ int cpu_openrisc_get_phys_data(OpenRISCCPU *cpu,
>  
>  static inline void cpu_get_tb_cpu_state(CPUOpenRISCState *env,
>                                          target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->pc;
>      *cs_base = 0;
> diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
> index 676081e..8269085 100644
> --- a/target-ppc/cpu.h
> +++ b/target-ppc/cpu.h
> @@ -2293,7 +2293,7 @@ static inline void cpu_write_xer(CPUPPCState *env, target_ulong xer)
>  }
>  
>  static inline void cpu_get_tb_cpu_state(CPUPPCState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->nip;
>      *cs_base = 0;
> diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h
> index 6d97c08..07f76ad 100644
> --- a/target-s390x/cpu.h
> +++ b/target-s390x/cpu.h
> @@ -338,7 +338,7 @@ static inline uint64_t cpu_mmu_idx_to_asc(int mmu_idx)
>  }
>  
>  static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->psw.addr;
>      *cs_base = 0;
> diff --git a/target-sh4/cpu.h b/target-sh4/cpu.h
> index 3b23e96..10c0191 100644
> --- a/target-sh4/cpu.h
> +++ b/target-sh4/cpu.h
> @@ -347,7 +347,7 @@ static inline void cpu_write_sr(CPUSH4State *env, target_ulong sr)
>  }
>  
>  static inline void cpu_get_tb_cpu_state(CPUSH4State *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->pc;
>      *cs_base = 0;
> diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h
> index dc46122..59ec7ca 100644
> --- a/target-sparc/cpu.h
> +++ b/target-sparc/cpu.h
> @@ -688,7 +688,7 @@ trap_state* cpu_tsptr(CPUSPARCState* env);
>  #define TB_FLAG_AM_ENABLED (1 << 5)
>  
>  static inline void cpu_get_tb_cpu_state(CPUSPARCState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->pc;
>      *cs_base = env->npc;
> diff --git a/target-tilegx/cpu.h b/target-tilegx/cpu.h
> index 022cad1..c9dda12 100644
> --- a/target-tilegx/cpu.h
> +++ b/target-tilegx/cpu.h
> @@ -169,7 +169,7 @@ TileGXCPU *cpu_tilegx_init(const char *cpu_model);
>  #define cpu_signal_handler cpu_tilegx_signal_handler
>  
>  static inline void cpu_get_tb_cpu_state(CPUTLGState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->pc;
>      *cs_base = 0;
> diff --git a/target-tricore/cpu.h b/target-tricore/cpu.h
> index 90045a9..eaebdd2 100644
> --- a/target-tricore/cpu.h
> +++ b/target-tricore/cpu.h
> @@ -377,7 +377,7 @@ void tricore_tcg_init(void);
>  int cpu_tricore_signal_handler(int host_signum, void *pinfo, void *puc);
>  
>  static inline void cpu_get_tb_cpu_state(CPUTriCoreState *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->PC;
>      *cs_base = 0;
> diff --git a/target-unicore32/cpu.h b/target-unicore32/cpu.h
> index 9c1fbf9..e64cb7e 100644
> --- a/target-unicore32/cpu.h
> +++ b/target-unicore32/cpu.h
> @@ -144,7 +144,7 @@ UniCore32CPU *uc32_cpu_init(const char *cpu_model);
>  #define cpu_init(cpu_model) CPU(uc32_cpu_init(cpu_model))
>  
>  static inline void cpu_get_tb_cpu_state(CPUUniCore32State *env, target_ulong *pc,
> -                                        target_ulong *cs_base, int *flags)
> +                                        target_ulong *cs_base, uint32_t *flags)
>  {
>      *pc = env->regs[31];
>      *cs_base = 0;
> diff --git a/target-xtensa/cpu.h b/target-xtensa/cpu.h
> index d0bd9da..7bfc9c8 100644
> --- a/target-xtensa/cpu.h
> +++ b/target-xtensa/cpu.h
> @@ -507,7 +507,7 @@ static inline int cpu_mmu_index(CPUXtensaState *env, bool ifetch)
>  #define XTENSA_TBFLAG_WINDOW_SHIFT 15
>  
>  static inline void cpu_get_tb_cpu_state(CPUXtensaState *env, target_ulong *pc,
> -        target_ulong *cs_base, int *flags)
> +        target_ulong *cs_base, uint32_t *flags)
>  {
>      CPUState *cs = CPU(xtensa_env_get_cpu(env));
>  
> diff --git a/translate-all.c b/translate-all.c
> index b4df1ec..3236035 100644
> --- a/translate-all.c
> +++ b/translate-all.c
> @@ -1050,7 +1050,7 @@ static void build_page_bitmap(PageDesc *p)
>  /* Called with mmap_lock held for user mode emulation.  */
>  TranslationBlock *tb_gen_code(CPUState *cpu,
>                                target_ulong pc, target_ulong cs_base,
> -                              int flags, int cflags)
> +                              uint32_t flags, int cflags)
>  {
>      CPUArchState *env = cpu->env_ptr;
>      TranslationBlock *tb;
> @@ -1204,7 +1204,7 @@ void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end,
>      int current_tb_modified = 0;
>      target_ulong current_pc = 0;
>      target_ulong current_cs_base = 0;
> -    int current_flags = 0;
> +    uint32_t current_flags = 0;
>  #endif /* TARGET_HAS_PRECISE_SMC */
>  
>      p = page_find(start >> TARGET_PAGE_BITS);
> @@ -1349,7 +1349,7 @@ static void tb_invalidate_phys_page(tb_page_addr_t addr,
>      int current_tb_modified = 0;
>      target_ulong current_pc = 0;
>      target_ulong current_cs_base = 0;
> -    int current_flags = 0;
> +    uint32_t current_flags = 0;
>  #endif
>  
>      addr &= TARGET_PAGE_MASK;
> @@ -1573,7 +1573,7 @@ void tb_check_watchpoint(CPUState *cpu)
>          CPUArchState *env = cpu->env_ptr;
>          target_ulong pc, cs_base;
>          tb_page_addr_t addr;
> -        int flags;
> +        uint32_t flags;
>  
>          cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags);
>          addr = get_page_addr_code(env, pc);
> @@ -1592,7 +1592,7 @@ void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr)
>      TranslationBlock *tb;
>      uint32_t n, cflags;
>      target_ulong pc, cs_base;
> -    uint64_t flags;
> +    uint32_t flags;
>  
>      tb = tb_find_pc(retaddr);
>      if (!tb) {
> -- 
> 2.5.0
>
Emilio Cota April 19, 2016, 11:21 p.m. UTC | #4
On Thu, Apr 07, 2016 at 13:19:22 -0400, Emilio G. Cota wrote:
> We are inconsistent with the type of tb->flags: usage varies loosely
> between int and uint64_t. Settle to uint32_t everywhere, which is
> superior to both: at least one target (aarch64) uses the most significant
> bit in the u32, and uint64_t is wasteful.
> 
> Compile-tested for all targets.
> 
> Suggested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
> Suggested-by: Richard Henderson <rth@twiddle.net>
> Signed-off-by: Emilio G. Cota <cota@braap.org>

Has this patch been queued by anyone? If not, should I resend after
2.6 is released?

Thanks,

		Emilio
Richard Henderson April 20, 2016, 2:52 p.m. UTC | #5
On 04/19/2016 04:21 PM, Emilio G. Cota wrote:
> On Thu, Apr 07, 2016 at 13:19:22 -0400, Emilio G. Cota wrote:
>> We are inconsistent with the type of tb->flags: usage varies loosely
>> between int and uint64_t. Settle to uint32_t everywhere, which is
>> superior to both: at least one target (aarch64) uses the most significant
>> bit in the u32, and uint64_t is wasteful.
>>
>> Compile-tested for all targets.
>>
>> Suggested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
>> Suggested-by: Richard Henderson <rth@twiddle.net>
>> Signed-off-by: Emilio G. Cota <cota@braap.org>
>
> Has this patch been queued by anyone? If not, should I resend after
> 2.6 is released?

Sorry for the delay.  Queued for 2.7.


r~
diff mbox

Patch

diff --git a/cpu-exec.c b/cpu-exec.c
index bbfcbfb..debc65c 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -220,7 +220,7 @@  static void cpu_exec_nocache(CPUState *cpu, int max_cycles,
 static TranslationBlock *tb_find_physical(CPUState *cpu,
                                           target_ulong pc,
                                           target_ulong cs_base,
-                                          uint64_t flags)
+                                          uint32_t flags)
 {
     CPUArchState *env = (CPUArchState *)cpu->env_ptr;
     TranslationBlock *tb, **ptb1;
@@ -271,7 +271,7 @@  static TranslationBlock *tb_find_physical(CPUState *cpu,
 static TranslationBlock *tb_find_slow(CPUState *cpu,
                                       target_ulong pc,
                                       target_ulong cs_base,
-                                      uint64_t flags)
+                                      uint32_t flags)
 {
     TranslationBlock *tb;
 
@@ -314,7 +314,7 @@  static inline TranslationBlock *tb_find_fast(CPUState *cpu)
     CPUArchState *env = (CPUArchState *)cpu->env_ptr;
     TranslationBlock *tb;
     target_ulong cs_base, pc;
-    int flags;
+    uint32_t flags;
 
     /* we record a subset of the CPU state. It will
        always be the same before a given translated block
diff --git a/exec.c b/exec.c
index f46e596..bf3ab36 100644
--- a/exec.c
+++ b/exec.c
@@ -2083,7 +2083,7 @@  static void check_watchpoint(int offset, int len, MemTxAttrs attrs, int flags)
     target_ulong pc, cs_base;
     target_ulong vaddr;
     CPUWatchpoint *wp;
-    int cpu_flags;
+    uint32_t cpu_flags;
 
     if (cpu->watchpoint_hit) {
         /* We re-entered the check after replacing the TB. Now raise
diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c
index c69f374..4bb695d 100644
--- a/hw/i386/kvmvapic.c
+++ b/hw/i386/kvmvapic.c
@@ -397,7 +397,7 @@  static void patch_instruction(VAPICROMState *s, X86CPU *cpu, target_ulong ip)
     uint32_t imm32;
     target_ulong current_pc = 0;
     target_ulong current_cs_base = 0;
-    int current_flags = 0;
+    uint32_t current_flags = 0;
 
     if (smp_cpus == 1) {
         handlers = &s->rom_state.up;
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index 7362095..c75fb3a 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -76,7 +76,8 @@  bool cpu_restore_state(CPUState *cpu, uintptr_t searched_pc);
 void QEMU_NORETURN cpu_resume_from_signal(CPUState *cpu, void *puc);
 void QEMU_NORETURN cpu_io_recompile(CPUState *cpu, uintptr_t retaddr);
 TranslationBlock *tb_gen_code(CPUState *cpu,
-                              target_ulong pc, target_ulong cs_base, int flags,
+                              target_ulong pc, target_ulong cs_base,
+                              uint32_t flags,
                               int cflags);
 void cpu_exec_init(CPUState *cpu, Error **errp);
 void QEMU_NORETURN cpu_loop_exit(CPUState *cpu);
@@ -235,7 +236,7 @@  static inline void tlb_flush_by_mmuidx(CPUState *cpu, ...)
 struct TranslationBlock {
     target_ulong pc;   /* simulated PC corresponding to this block (EIP + CS base) */
     target_ulong cs_base; /* CS base for this block */
-    uint64_t flags; /* flags defining in which context the code was generated */
+    uint32_t flags; /* flags defining in which context the code was generated */
     uint16_t size;      /* size of target code for this block (1 <=
                            size <= TARGET_PAGE_SIZE) */
     uint16_t icount;
diff --git a/target-alpha/cpu.h b/target-alpha/cpu.h
index 420f2a5..b25d7d0 100644
--- a/target-alpha/cpu.h
+++ b/target-alpha/cpu.h
@@ -465,7 +465,7 @@  enum {
 };
 
 static inline void cpu_get_tb_cpu_state(CPUAlphaState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *pflags)
+                                        target_ulong *cs_base, uint32_t *pflags)
 {
     int flags = 0;
 
diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index 066ff67..9deef86 100644
--- a/target-arm/cpu.h
+++ b/target-arm/cpu.h
@@ -2117,7 +2117,7 @@  static inline bool arm_cpu_bswap_data(CPUARMState *env)
 #endif
 
 static inline void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     if (is_a64(env)) {
         *pc = env->pc;
diff --git a/target-cris/cpu.h b/target-cris/cpu.h
index 415cf91..a492fc6 100644
--- a/target-cris/cpu.h
+++ b/target-cris/cpu.h
@@ -249,7 +249,7 @@  int cris_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
 #include "exec/cpu-all.h"
 
 static inline void cpu_get_tb_cpu_state(CPUCRISState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->pc;
     *cs_base = 0;
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index 732eb6d..444fda9 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -1269,7 +1269,7 @@  void tcg_x86_init(void);
 #include "exec/exec-all.h"
 
 static inline void cpu_get_tb_cpu_state(CPUX86State *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *cs_base = env->segs[R_CS].base;
     *pc = *cs_base + env->eip;
diff --git a/target-i386/translate.c b/target-i386/translate.c
index 1a1214d..3a32f65 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -8178,7 +8178,7 @@  void gen_intermediate_code(CPUX86State *env, TranslationBlock *tb)
     CPUState *cs = CPU(cpu);
     DisasContext dc1, *dc = &dc1;
     target_ulong pc_ptr;
-    uint64_t flags;
+    uint32_t flags;
     target_ulong pc_start;
     target_ulong cs_base;
     int num_insns;
diff --git a/target-lm32/cpu.h b/target-lm32/cpu.h
index f220fc0..6a0d297 100644
--- a/target-lm32/cpu.h
+++ b/target-lm32/cpu.h
@@ -226,7 +226,7 @@  int lm32_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
 #include "exec/cpu-all.h"
 
 static inline void cpu_get_tb_cpu_state(CPULM32State *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->pc;
     *cs_base = 0;
diff --git a/target-m68k/cpu.h b/target-m68k/cpu.h
index 48b4c87..d2f467c 100644
--- a/target-m68k/cpu.h
+++ b/target-m68k/cpu.h
@@ -230,7 +230,7 @@  int m68k_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
 #include "exec/cpu-all.h"
 
 static inline void cpu_get_tb_cpu_state(CPUM68KState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->pc;
     *cs_base = 0;
diff --git a/target-microblaze/cpu.h b/target-microblaze/cpu.h
index 2f7335e..bf74e2c 100644
--- a/target-microblaze/cpu.h
+++ b/target-microblaze/cpu.h
@@ -322,7 +322,7 @@  int mb_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
 #include "exec/cpu-all.h"
 
 static inline void cpu_get_tb_cpu_state(CPUMBState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->sregs[SR_PC];
     *cs_base = 0;
diff --git a/target-mips/cpu.h b/target-mips/cpu.h
index 866924d..53e8262 100644
--- a/target-mips/cpu.h
+++ b/target-mips/cpu.h
@@ -839,7 +839,7 @@  static inline void restore_pamask(CPUMIPSState *env)
 }
 
 static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->active_tc.PC;
     *cs_base = 0;
diff --git a/target-moxie/cpu.h b/target-moxie/cpu.h
index 4ee2077..1b46e52 100644
--- a/target-moxie/cpu.h
+++ b/target-moxie/cpu.h
@@ -132,7 +132,7 @@  static inline int cpu_mmu_index(CPUMoxieState *env, bool ifetch)
 #include "exec/exec-all.h"
 
 static inline void cpu_get_tb_cpu_state(CPUMoxieState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->pc;
     *cs_base = 0;
diff --git a/target-openrisc/cpu.h b/target-openrisc/cpu.h
index 4b63f25..ed818af 100644
--- a/target-openrisc/cpu.h
+++ b/target-openrisc/cpu.h
@@ -392,7 +392,7 @@  int cpu_openrisc_get_phys_data(OpenRISCCPU *cpu,
 
 static inline void cpu_get_tb_cpu_state(CPUOpenRISCState *env,
                                         target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->pc;
     *cs_base = 0;
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 676081e..8269085 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -2293,7 +2293,7 @@  static inline void cpu_write_xer(CPUPPCState *env, target_ulong xer)
 }
 
 static inline void cpu_get_tb_cpu_state(CPUPPCState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->nip;
     *cs_base = 0;
diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h
index 6d97c08..07f76ad 100644
--- a/target-s390x/cpu.h
+++ b/target-s390x/cpu.h
@@ -338,7 +338,7 @@  static inline uint64_t cpu_mmu_idx_to_asc(int mmu_idx)
 }
 
 static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->psw.addr;
     *cs_base = 0;
diff --git a/target-sh4/cpu.h b/target-sh4/cpu.h
index 3b23e96..10c0191 100644
--- a/target-sh4/cpu.h
+++ b/target-sh4/cpu.h
@@ -347,7 +347,7 @@  static inline void cpu_write_sr(CPUSH4State *env, target_ulong sr)
 }
 
 static inline void cpu_get_tb_cpu_state(CPUSH4State *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->pc;
     *cs_base = 0;
diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h
index dc46122..59ec7ca 100644
--- a/target-sparc/cpu.h
+++ b/target-sparc/cpu.h
@@ -688,7 +688,7 @@  trap_state* cpu_tsptr(CPUSPARCState* env);
 #define TB_FLAG_AM_ENABLED (1 << 5)
 
 static inline void cpu_get_tb_cpu_state(CPUSPARCState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->pc;
     *cs_base = env->npc;
diff --git a/target-tilegx/cpu.h b/target-tilegx/cpu.h
index 022cad1..c9dda12 100644
--- a/target-tilegx/cpu.h
+++ b/target-tilegx/cpu.h
@@ -169,7 +169,7 @@  TileGXCPU *cpu_tilegx_init(const char *cpu_model);
 #define cpu_signal_handler cpu_tilegx_signal_handler
 
 static inline void cpu_get_tb_cpu_state(CPUTLGState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->pc;
     *cs_base = 0;
diff --git a/target-tricore/cpu.h b/target-tricore/cpu.h
index 90045a9..eaebdd2 100644
--- a/target-tricore/cpu.h
+++ b/target-tricore/cpu.h
@@ -377,7 +377,7 @@  void tricore_tcg_init(void);
 int cpu_tricore_signal_handler(int host_signum, void *pinfo, void *puc);
 
 static inline void cpu_get_tb_cpu_state(CPUTriCoreState *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->PC;
     *cs_base = 0;
diff --git a/target-unicore32/cpu.h b/target-unicore32/cpu.h
index 9c1fbf9..e64cb7e 100644
--- a/target-unicore32/cpu.h
+++ b/target-unicore32/cpu.h
@@ -144,7 +144,7 @@  UniCore32CPU *uc32_cpu_init(const char *cpu_model);
 #define cpu_init(cpu_model) CPU(uc32_cpu_init(cpu_model))
 
 static inline void cpu_get_tb_cpu_state(CPUUniCore32State *env, target_ulong *pc,
-                                        target_ulong *cs_base, int *flags)
+                                        target_ulong *cs_base, uint32_t *flags)
 {
     *pc = env->regs[31];
     *cs_base = 0;
diff --git a/target-xtensa/cpu.h b/target-xtensa/cpu.h
index d0bd9da..7bfc9c8 100644
--- a/target-xtensa/cpu.h
+++ b/target-xtensa/cpu.h
@@ -507,7 +507,7 @@  static inline int cpu_mmu_index(CPUXtensaState *env, bool ifetch)
 #define XTENSA_TBFLAG_WINDOW_SHIFT 15
 
 static inline void cpu_get_tb_cpu_state(CPUXtensaState *env, target_ulong *pc,
-        target_ulong *cs_base, int *flags)
+        target_ulong *cs_base, uint32_t *flags)
 {
     CPUState *cs = CPU(xtensa_env_get_cpu(env));
 
diff --git a/translate-all.c b/translate-all.c
index b4df1ec..3236035 100644
--- a/translate-all.c
+++ b/translate-all.c
@@ -1050,7 +1050,7 @@  static void build_page_bitmap(PageDesc *p)
 /* Called with mmap_lock held for user mode emulation.  */
 TranslationBlock *tb_gen_code(CPUState *cpu,
                               target_ulong pc, target_ulong cs_base,
-                              int flags, int cflags)
+                              uint32_t flags, int cflags)
 {
     CPUArchState *env = cpu->env_ptr;
     TranslationBlock *tb;
@@ -1204,7 +1204,7 @@  void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end,
     int current_tb_modified = 0;
     target_ulong current_pc = 0;
     target_ulong current_cs_base = 0;
-    int current_flags = 0;
+    uint32_t current_flags = 0;
 #endif /* TARGET_HAS_PRECISE_SMC */
 
     p = page_find(start >> TARGET_PAGE_BITS);
@@ -1349,7 +1349,7 @@  static void tb_invalidate_phys_page(tb_page_addr_t addr,
     int current_tb_modified = 0;
     target_ulong current_pc = 0;
     target_ulong current_cs_base = 0;
-    int current_flags = 0;
+    uint32_t current_flags = 0;
 #endif
 
     addr &= TARGET_PAGE_MASK;
@@ -1573,7 +1573,7 @@  void tb_check_watchpoint(CPUState *cpu)
         CPUArchState *env = cpu->env_ptr;
         target_ulong pc, cs_base;
         tb_page_addr_t addr;
-        int flags;
+        uint32_t flags;
 
         cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags);
         addr = get_page_addr_code(env, pc);
@@ -1592,7 +1592,7 @@  void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr)
     TranslationBlock *tb;
     uint32_t n, cflags;
     target_ulong pc, cs_base;
-    uint64_t flags;
+    uint32_t flags;
 
     tb = tb_find_pc(retaddr);
     if (!tb) {