The CPUClass::disas_set_info() handler is meant to initialize
the %disassemble_info structure; it shoudn't alter the CPU state.
Enforce the CPUState can not be modified by having the handler
take a const pointer.

Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
---
 include/hw/core/cpu.h   | 2 +-
 target/alpha/cpu.c      | 3 ++-
 target/arm/cpu.c        | 6 +++---
 target/avr/cpu.c        | 2 +-
 target/hexagon/cpu.c    | 3 ++-
 target/hppa/cpu.c       | 2 +-
 target/i386/cpu.c       | 6 +++---
 target/loongarch/cpu.c  | 3 ++-
 target/m68k/cpu.c       | 2 +-
 target/microblaze/cpu.c | 2 +-
 target/mips/cpu.c       | 7 +++++--
 target/openrisc/cpu.c   | 2 +-
 target/ppc/cpu_init.c   | 5 +++--
 target/riscv/cpu.c      | 7 ++++---
 target/rx/cpu.c         | 2 +-
 target/s390x/cpu.c      | 2 +-
 target/sh4/cpu.c        | 3 ++-
 target/sparc/cpu.c      | 3 ++-
 target/xtensa/cpu.c     | 3 ++-
 19 files changed, 38 insertions(+), 27 deletions(-)

diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 61da2ea4331..b2d33aac262 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -175,7 +175,7 @@ struct CPUClass {
     const char * (*gdb_arch_name)(CPUState *cpu);
     const char * (*gdb_get_core_xml_file)(CPUState *cpu);
 
-    void (*disas_set_info)(CPUState *cpu, disassemble_info *info);
+    void (*disas_set_info)(const CPUState *cpu, disassemble_info *info);
 
     const char *deprecation_note;
     struct AccelCPUClass *accel_cpu;
diff --git a/target/alpha/cpu.c b/target/alpha/cpu.c
index 932cddac055..1780db7d1e2 100644
--- a/target/alpha/cpu.c
+++ b/target/alpha/cpu.c
@@ -98,7 +98,8 @@ static int alpha_cpu_mmu_index(CPUState *cs, bool ifetch)
     return alpha_env_mmu_index(cpu_env(cs));
 }
 
-static void alpha_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
+static void alpha_cpu_disas_set_info(const CPUState *cpu,
+                                     disassemble_info *info)
 {
     info->endian = BFD_ENDIAN_LITTLE;
     info->mach = bfd_mach_alpha_ev6;
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 586202071d0..c535b292d99 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -789,10 +789,10 @@ static void arm_wfxt_timer_cb(void *opaque)
 }
 #endif
 
-static void arm_disas_set_info(CPUState *cpu, disassemble_info *info)
+static void arm_disas_set_info(const CPUState *cpu, disassemble_info *info)
 {
-    ARMCPU *ac = ARM_CPU(cpu);
-    CPUARMState *env = &ac->env;
+    const ARMCPU *ac = ARM_CPU(cpu);
+    const CPUARMState *env = &ac->env;
     bool sctlr_b = arm_sctlr_b(env);
 
     if (is_a64(env)) {
diff --git a/target/avr/cpu.c b/target/avr/cpu.c
index 52237da3ce9..8579a7283b1 100644
--- a/target/avr/cpu.c
+++ b/target/avr/cpu.c
@@ -116,7 +116,7 @@ static void avr_cpu_reset_hold(Object *obj, ResetType type)
     memset(env->r, 0, sizeof(env->r));
 }
 
-static void avr_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
+static void avr_cpu_disas_set_info(const CPUState *cpu, disassemble_info *info)
 {
     info->endian = BFD_ENDIAN_LITTLE;
     info->mach = bfd_arch_avr;
diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c
index 8ac4f49aa3b..58a22ee41f2 100644
--- a/target/hexagon/cpu.c
+++ b/target/hexagon/cpu.c
@@ -301,7 +301,8 @@ static void hexagon_cpu_reset_hold(Object *obj, ResetType 
type)
     set_float_default_nan_pattern(0b11111111, &env->fp_status);
 }
 
-static void hexagon_cpu_disas_set_info(CPUState *s, disassemble_info *info)
+static void hexagon_cpu_disas_set_info(const CPUState *cs,
+                                       disassemble_info *info)
 {
     info->print_insn = print_insn_hexagon;
     info->endian = BFD_ENDIAN_LITTLE;
diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c
index 0ca79ee5e23..714f3bbdaf7 100644
--- a/target/hppa/cpu.c
+++ b/target/hppa/cpu.c
@@ -150,7 +150,7 @@ static int hppa_cpu_mmu_index(CPUState *cs, bool ifetch)
     return env->psw & PSW_W ? MMU_ABS_W_IDX : MMU_ABS_IDX;
 }
 
-static void hppa_cpu_disas_set_info(CPUState *cs, disassemble_info *info)
+static void hppa_cpu_disas_set_info(const CPUState *cs, disassemble_info *info)
 {
     info->mach = bfd_mach_hppa20;
     info->endian = BFD_ENDIAN_BIG;
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 45f0b80deb0..0a7b884528e 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -10359,10 +10359,10 @@ static bool x86_cpu_has_work(CPUState *cs)
 }
 #endif /* !CONFIG_USER_ONLY */
 
-static void x86_disas_set_info(CPUState *cs, disassemble_info *info)
+static void x86_disas_set_info(const CPUState *cs, disassemble_info *info)
 {
-    X86CPU *cpu = X86_CPU(cs);
-    CPUX86State *env = &cpu->env;
+    const X86CPU *cpu = X86_CPU(cs);
+    const CPUX86State *env = &cpu->env;
 
     info->endian = BFD_ENDIAN_LITTLE;
     info->mach = (env->hflags & HF_CS64_MASK ? bfd_mach_x86_64
diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
index b6539485266..4fa629cb144 100644
--- a/target/loongarch/cpu.c
+++ b/target/loongarch/cpu.c
@@ -506,7 +506,8 @@ static void loongarch_cpu_reset_hold(Object *obj, ResetType 
type)
     cs->exception_index = -1;
 }
 
-static void loongarch_cpu_disas_set_info(CPUState *s, disassemble_info *info)
+static void loongarch_cpu_disas_set_info(const CPUState *cs,
+                                         disassemble_info *info)
 {
     info->endian = BFD_ENDIAN_LITTLE;
     info->print_insn = print_insn_loongarch;
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c
index b55e604b11d..c721a23b966 100644
--- a/target/m68k/cpu.c
+++ b/target/m68k/cpu.c
@@ -176,7 +176,7 @@ static void m68k_cpu_reset_hold(Object *obj, ResetType type)
     env->pc = 0;
 }
 
-static void m68k_cpu_disas_set_info(CPUState *s, disassemble_info *info)
+static void m68k_cpu_disas_set_info(const CPUState *cs, disassemble_info *info)
 {
     info->print_insn = print_insn_m68k;
     info->endian = BFD_ENDIAN_BIG;
diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c
index 53649ec6567..ae41a1a3287 100644
--- a/target/microblaze/cpu.c
+++ b/target/microblaze/cpu.c
@@ -233,7 +233,7 @@ static void mb_cpu_reset_hold(Object *obj, ResetType type)
 #endif
 }
 
-static void mb_disas_set_info(CPUState *cpu, disassemble_info *info)
+static void mb_disas_set_info(const CPUState *cpu, disassemble_info *info)
 {
     info->mach = bfd_arch_microblaze;
     info->print_insn = print_insn_microblaze;
diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index f74a9d5f615..e424d115018 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -422,9 +422,12 @@ static void mips_cpu_reset_hold(Object *obj, ResetType 
type)
 #endif
 }
 
-static void mips_cpu_disas_set_info(CPUState *s, disassemble_info *info)
+static void mips_cpu_disas_set_info(const CPUState *cs, disassemble_info *info)
 {
-    if (!(cpu_env(s)->insn_flags & ISA_NANOMIPS32)) {
+    const MIPSCPU *cpu = MIPS_CPU(cs);
+    const CPUMIPSState *env = &cpu->env;
+
+    if (!(env->insn_flags & ISA_NANOMIPS32)) {
         info->endian = TARGET_BIG_ENDIAN ? BFD_ENDIAN_BIG
                                          : BFD_ENDIAN_LITTLE;
         info->print_insn = TARGET_BIG_ENDIAN ? print_insn_big_mips
diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c
index 9bbfe22ed3a..c64542a59a2 100644
--- a/target/openrisc/cpu.c
+++ b/target/openrisc/cpu.c
@@ -94,7 +94,7 @@ static int openrisc_cpu_mmu_index(CPUState *cs, bool ifetch)
     return MMU_NOMMU_IDX;  /* mmu is disabled */
 }
 
-static void openrisc_disas_set_info(CPUState *cpu, disassemble_info *info)
+static void openrisc_disas_set_info(const CPUState *cpu, disassemble_info 
*info)
 {
     info->endian = BFD_ENDIAN_BIG;
     info->print_insn = print_insn_or1k;
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 58816c51a74..d67db2e0064 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -7452,9 +7452,10 @@ static bool ppc_pvr_match_default(PowerPCCPUClass *pcc, 
uint32_t pvr, bool best)
     return pcc->pvr == pvr;
 }
 
-static void ppc_disas_set_info(CPUState *cs, disassemble_info *info)
+static void ppc_disas_set_info(const CPUState *cs, disassemble_info *info)
 {
-    CPUPPCState *env = cpu_env(cs);
+    const PowerPCCPU *cpu = POWERPC_CPU(cs);
+    const CPUPPCState *env = &cpu->env;
 
     if ((env->hflags >> MSR_LE) & 1) {
         info->endian = BFD_ENDIAN_LITTLE;
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index e95eea02493..e56470a3748 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -795,10 +795,11 @@ static void riscv_cpu_reset_hold(Object *obj, ResetType 
type)
 #endif
 }
 
-static void riscv_cpu_disas_set_info(CPUState *s, disassemble_info *info)
+static void riscv_cpu_disas_set_info(const CPUState *s, disassemble_info *info)
 {
-    RISCVCPU *cpu = RISCV_CPU(s);
-    CPURISCVState *env = &cpu->env;
+    const RISCVCPU *cpu = RISCV_CPU(s);
+    const CPURISCVState *env = &cpu->env;
+
     info->target_info = &cpu->cfg;
 
     /*
diff --git a/target/rx/cpu.c b/target/rx/cpu.c
index 0437edca1ba..b5284199e6d 100644
--- a/target/rx/cpu.c
+++ b/target/rx/cpu.c
@@ -178,7 +178,7 @@ static void rx_cpu_set_irq(void *opaque, int no, int 
request)
     }
 }
 
-static void rx_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
+static void rx_cpu_disas_set_info(const CPUState *cpu, disassemble_info *info)
 {
     info->endian = BFD_ENDIAN_LITTLE;
     info->mach = bfd_mach_rx;
diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index cd472d38be7..c074e12ba2d 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -222,7 +222,7 @@ static void s390_cpu_reset_hold(Object *obj, ResetType type)
     }
 }
 
-static void s390_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
+static void s390_cpu_disas_set_info(const CPUState *cpu, disassemble_info 
*info)
 {
     info->mach = bfd_mach_s390_64;
     info->cap_arch = CS_ARCH_SYSZ;
diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c
index 1dd21ad9ed6..e2bde457618 100644
--- a/target/sh4/cpu.c
+++ b/target/sh4/cpu.c
@@ -164,7 +164,8 @@ static void superh_cpu_reset_hold(Object *obj, ResetType 
type)
     set_float_ftz_detection(float_ftz_before_rounding, &env->fp_status);
 }
 
-static void superh_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
+static void superh_cpu_disas_set_info(const CPUState *cpu,
+                                      disassemble_info *info)
 {
     info->endian = TARGET_BIG_ENDIAN ? BFD_ENDIAN_BIG
                                      : BFD_ENDIAN_LITTLE;
diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c
index bfc6fb9d00d..3991681d1d1 100644
--- a/target/sparc/cpu.c
+++ b/target/sparc/cpu.c
@@ -103,7 +103,8 @@ static bool sparc_cpu_exec_interrupt(CPUState *cs, int 
interrupt_request)
 }
 #endif /* !CONFIG_USER_ONLY */
 
-static void cpu_sparc_disas_set_info(CPUState *cpu, disassemble_info *info)
+static void cpu_sparc_disas_set_info(const CPUState *cpu,
+                                     disassemble_info *info)
 {
     info->print_insn = print_insn_sparc;
     info->endian = BFD_ENDIAN_BIG;
diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c
index ecc5e093a40..86ec899a67c 100644
--- a/target/xtensa/cpu.c
+++ b/target/xtensa/cpu.c
@@ -226,7 +226,8 @@ static ObjectClass *xtensa_cpu_class_by_name(const char 
*cpu_model)
     return oc;
 }
 
-static void xtensa_cpu_disas_set_info(CPUState *cs, disassemble_info *info)
+static void xtensa_cpu_disas_set_info(const CPUState *cs,
+                                      disassemble_info *info)
 {
     XtensaCPU *cpu = XTENSA_CPU(cs);
 
-- 
2.52.0


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