include/exec: Move cpu_signal_handler declaration

There is nothing target specific about this.  The implementation
is host specific, but the declaration is 100% common.

Reviewed-By: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

22 files changed, 13 insertions, 89 deletions

diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index 5d1b6d80fb..9d5987ba04 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -662,6 +662,19 @@ static inline tb_page_addr_t get_page_addr_code_hostp(CPUArchState *env,
     }
     return addr;
 }
+
+/**
+ * cpu_signal_handler
+ * @signum: host signal number
+ * @pinfo: host siginfo_t
+ * @puc: host ucontext_t
+ *
+ * To be called from the SIGBUS and SIGSEGV signal handler to inform the
+ * virtual cpu of exceptions.  Returns true if the signal was handled by
+ * the virtual CPU.
+ */
+int cpu_signal_handler(int signum, void *pinfo, void *puc);
+
 #else
 static inline void mmap_lock(void) {}
 static inline void mmap_unlock(void) {}
diff --git a/target/alpha/cpu.h b/target/alpha/cpu.h
index 4e993bd15b..ce9ec32199 100644
--- a/target/alpha/cpu.h
+++ b/target/alpha/cpu.h
@@ -287,7 +287,6 @@ void alpha_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
                                    int mmu_idx, uintptr_t retaddr);
 
 #define cpu_list alpha_cpu_list
-#define cpu_signal_handler cpu_alpha_signal_handler
 
 typedef CPUAlphaState CPUArchState;
 typedef AlphaCPU ArchCPU;
@@ -440,11 +439,6 @@ void alpha_translate_init(void);
 #define CPU_RESOLVING_TYPE TYPE_ALPHA_CPU
 
 void alpha_cpu_list(void);
-/* you can call this signal handler from your SIGBUS and SIGSEGV
-   signal handlers to inform the virtual CPU of exceptions. non zero
-   is returned if the signal was handled by the virtual CPU.  */
-int cpu_alpha_signal_handler(int host_signum, void *pinfo,
-                             void *puc);
 bool alpha_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
                         MMUAccessType access_type, int mmu_idx,
                         bool probe, uintptr_t retaddr);
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 87235dae63..e33f37b70a 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -1121,12 +1121,6 @@ static inline bool is_a64(CPUARMState *env)
     return env->aarch64;
 }
 
-/* you can call this signal handler from your SIGBUS and SIGSEGV
-   signal handlers to inform the virtual CPU of exceptions. non zero
-   is returned if the signal was handled by the virtual CPU.  */
-int cpu_arm_signal_handler(int host_signum, void *pinfo,
-                           void *puc);
-
 /**
  * pmu_op_start/finish
  * @env: CPUARMState
@@ -3017,7 +3011,6 @@ bool write_cpustate_to_list(ARMCPU *cpu, bool kvm_sync);
 
 #define TYPE_ARM_HOST_CPU "host-" TYPE_ARM_CPU
 
-#define cpu_signal_handler cpu_arm_signal_handler
 #define cpu_list arm_cpu_list
 
 /* ARM has the following "translation regimes" (as the ARM ARM calls them):
diff --git a/target/avr/cpu.h b/target/avr/cpu.h
index 93e3faa0a9..dceacf3cd7 100644
--- a/target/avr/cpu.h
+++ b/target/avr/cpu.h
@@ -175,7 +175,6 @@ static inline void set_avr_feature(CPUAVRState *env, int feature)
 }
 
 #define cpu_list avr_cpu_list
-#define cpu_signal_handler cpu_avr_signal_handler
 #define cpu_mmu_index avr_cpu_mmu_index
 
 static inline int avr_cpu_mmu_index(CPUAVRState *env, bool ifetch)
@@ -187,7 +186,6 @@ void avr_cpu_tcg_init(void);
 
 void avr_cpu_list(void);
 int cpu_avr_exec(CPUState *cpu);
-int cpu_avr_signal_handler(int host_signum, void *pinfo, void *puc);
 int avr_cpu_memory_rw_debug(CPUState *cs, vaddr address, uint8_t *buf,
                             int len, bool is_write);
 
diff --git a/target/cris/cpu.h b/target/cris/cpu.h
index be021899ae..6603565f83 100644
--- a/target/cris/cpu.h
+++ b/target/cris/cpu.h
@@ -199,12 +199,6 @@ int crisv10_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
 int cris_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
 int cris_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
 
-/* you can call this signal handler from your SIGBUS and SIGSEGV
-   signal handlers to inform the virtual CPU of exceptions. non zero
-   is returned if the signal was handled by the virtual CPU.  */
-int cpu_cris_signal_handler(int host_signum, void *pinfo,
-                           void *puc);
-
 void cris_initialize_tcg(void);
 void cris_initialize_crisv10_tcg(void);
 
@@ -250,8 +244,6 @@ enum {
 #define CRIS_CPU_TYPE_NAME(name) (name CRIS_CPU_TYPE_SUFFIX)
 #define CPU_RESOLVING_TYPE TYPE_CRIS_CPU
 
-#define cpu_signal_handler cpu_cris_signal_handler
-
 /* MMU modes definitions */
 #define MMU_USER_IDX 1
 static inline int cpu_mmu_index (CPUCRISState *env, bool ifetch)
diff --git a/target/hexagon/cpu.h b/target/hexagon/cpu.h
index 2855dd3881..f7d043865b 100644
--- a/target/hexagon/cpu.h
+++ b/target/hexagon/cpu.h
@@ -129,9 +129,6 @@ typedef struct HexagonCPU {
 
 #include "cpu_bits.h"
 
-#define cpu_signal_handler cpu_hexagon_signal_handler
-int cpu_hexagon_signal_handler(int host_signum, void *pinfo, void *puc);
-
 static inline void cpu_get_tb_cpu_state(CPUHexagonState *env, target_ulong *pc,
                                         target_ulong *cs_base, uint32_t *flags)
 {
diff --git a/target/hppa/cpu.h b/target/hppa/cpu.h
index 7854675b90..d3cb7a279f 100644
--- a/target/hppa/cpu.h
+++ b/target/hppa/cpu.h
@@ -319,9 +319,6 @@ static inline void cpu_hppa_change_prot_id(CPUHPPAState *env) { }
 void cpu_hppa_change_prot_id(CPUHPPAState *env);
 #endif
 
-#define cpu_signal_handler cpu_hppa_signal_handler
-
-int cpu_hppa_signal_handler(int host_signum, void *pinfo, void *puc);
 hwaddr hppa_cpu_get_phys_page_debug(CPUState *cs, vaddr addr);
 int hppa_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
 int hppa_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 7dd664791a..c2954c71ea 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1947,12 +1947,6 @@ void cpu_x86_frstor(CPUX86State *s, target_ulong ptr, int data32);
 void cpu_x86_fxsave(CPUX86State *s, target_ulong ptr);
 void cpu_x86_fxrstor(CPUX86State *s, target_ulong ptr);
 
-/* you can call this signal handler from your SIGBUS and SIGSEGV
-   signal handlers to inform the virtual CPU of exceptions. non zero
-   is returned if the signal was handled by the virtual CPU.  */
-int cpu_x86_signal_handler(int host_signum, void *pinfo,
-                           void *puc);
-
 /* cpu.c */
 void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1,
                               uint32_t vendor2, uint32_t vendor3);
@@ -2020,7 +2014,6 @@ uint64_t cpu_get_tsc(CPUX86State *env);
 #define TARGET_DEFAULT_CPU_TYPE X86_CPU_TYPE_NAME("qemu32")
 #endif
 
-#define cpu_signal_handler cpu_x86_signal_handler
 #define cpu_list x86_cpu_list
 
 /* MMU modes definitions */
diff --git a/target/m68k/cpu.h b/target/m68k/cpu.h
index 550eb028b6..a3423729ef 100644
--- a/target/m68k/cpu.h
+++ b/target/m68k/cpu.h
@@ -177,13 +177,6 @@ int m68k_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
 
 void m68k_tcg_init(void);
 void m68k_cpu_init_gdb(M68kCPU *cpu);
-/*
- * you can call this signal handler from your SIGBUS and SIGSEGV
- * signal handlers to inform the virtual CPU of exceptions. non zero
- * is returned if the signal was handled by the virtual CPU.
- */
-int cpu_m68k_signal_handler(int host_signum, void *pinfo,
-                           void *puc);
 uint32_t cpu_m68k_get_ccr(CPUM68KState *env);
 void cpu_m68k_set_ccr(CPUM68KState *env, uint32_t);
 void cpu_m68k_set_sr(CPUM68KState *env, uint32_t);
@@ -563,7 +556,6 @@ enum {
 #define M68K_CPU_TYPE_NAME(model) model M68K_CPU_TYPE_SUFFIX
 #define CPU_RESOLVING_TYPE TYPE_M68K_CPU
 
-#define cpu_signal_handler cpu_m68k_signal_handler
 #define cpu_list m68k_cpu_list
 
 /* MMU modes definitions */
diff --git a/target/microblaze/cpu.h b/target/microblaze/cpu.h
index 40401c33b7..13ed3cd4dd 100644
--- a/target/microblaze/cpu.h
+++ b/target/microblaze/cpu.h
@@ -385,16 +385,9 @@ static inline void mb_cpu_write_msr(CPUMBState *env, uint32_t val)
 }
 
 void mb_tcg_init(void);
-/* you can call this signal handler from your SIGBUS and SIGSEGV
-   signal handlers to inform the virtual CPU of exceptions. non zero
-   is returned if the signal was handled by the virtual CPU.  */
-int cpu_mb_signal_handler(int host_signum, void *pinfo,
-                          void *puc);
 
 #define CPU_RESOLVING_TYPE TYPE_MICROBLAZE_CPU
 
-#define cpu_signal_handler cpu_mb_signal_handler
-
 /* MMU modes definitions */
 #define MMU_NOMMU_IDX   0
 #define MMU_KERNEL_IDX  1
diff --git a/target/mips/cpu.h b/target/mips/cpu.h
index 1dfe69c6c0..56b1cbd091 100644
--- a/target/mips/cpu.h
+++ b/target/mips/cpu.h
@@ -1193,7 +1193,6 @@ struct MIPSCPU {
 
 void mips_cpu_list(void);
 
-#define cpu_signal_handler cpu_mips_signal_handler
 #define cpu_list mips_cpu_list
 
 extern void cpu_wrdsp(uint32_t rs, uint32_t mask_num, CPUMIPSState *env);
@@ -1277,8 +1276,6 @@ enum {
  */
 #define CPU_INTERRUPT_WAKE CPU_INTERRUPT_TGT_INT_0
 
-int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
-
 #define MIPS_CPU_TYPE_SUFFIX "-" TYPE_MIPS_CPU
 #define MIPS_CPU_TYPE_NAME(model) model MIPS_CPU_TYPE_SUFFIX
 #define CPU_RESOLVING_TYPE TYPE_MIPS_CPU
diff --git a/target/mips/internal.h b/target/mips/internal.h
index eecdd10116..daddb05fd4 100644
--- a/target/mips/internal.h
+++ b/target/mips/internal.h
@@ -156,8 +156,6 @@ extern const VMStateDescription vmstate_mips_cpu;
 
 #endif /* !CONFIG_USER_ONLY */
 
-#define cpu_signal_handler cpu_mips_signal_handler
-
 static inline bool cpu_mips_hw_interrupts_enabled(CPUMIPSState *env)
 {
     return (env->CP0_Status & (1 << CP0St_IE)) &&
diff --git a/target/nios2/cpu.h b/target/nios2/cpu.h
index 2ab82fdc71..88a511209c 100644
--- a/target/nios2/cpu.h
+++ b/target/nios2/cpu.h
@@ -193,7 +193,6 @@ struct Nios2CPU {
 
 void nios2_tcg_init(void);
 void nios2_cpu_do_interrupt(CPUState *cs);
-int cpu_nios2_signal_handler(int host_signum, void *pinfo, void *puc);
 void dump_mmu(CPUNios2State *env);
 void nios2_cpu_dump_state(CPUState *cpu, FILE *f, int flags);
 hwaddr nios2_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
@@ -206,7 +205,6 @@ void do_nios2_semihosting(CPUNios2State *env);
 #define CPU_RESOLVING_TYPE TYPE_NIOS2_CPU
 
 #define cpu_gen_code cpu_nios2_gen_code
-#define cpu_signal_handler cpu_nios2_signal_handler
 
 #define CPU_SAVE_VERSION 1
 
diff --git a/target/openrisc/cpu.h b/target/openrisc/cpu.h
index be6df81a81..187a4a114e 100644
--- a/target/openrisc/cpu.h
+++ b/target/openrisc/cpu.h
@@ -320,11 +320,9 @@ void openrisc_translate_init(void);
 bool openrisc_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
                            MMUAccessType access_type, int mmu_idx,
                            bool probe, uintptr_t retaddr);
-int cpu_openrisc_signal_handler(int host_signum, void *pinfo, void *puc);
 int print_insn_or1k(bfd_vma addr, disassemble_info *info);
 
 #define cpu_list cpu_openrisc_list
-#define cpu_signal_handler cpu_openrisc_signal_handler
 
 #ifndef CONFIG_USER_ONLY
 extern const VMStateDescription vmstate_openrisc_cpu;
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index 362e7c4c5c..01d3773bc7 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -1278,12 +1278,6 @@ extern const VMStateDescription vmstate_ppc_cpu;
 
 /*****************************************************************************/
 void ppc_translate_init(void);
-/*
- * you can call this signal handler from your SIGBUS and SIGSEGV
- * signal handlers to inform the virtual CPU of exceptions. non zero
- * is returned if the signal was handled by the virtual CPU.
- */
-int cpu_ppc_signal_handler(int host_signum, void *pinfo, void *puc);
 bool ppc_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
                       MMUAccessType access_type, int mmu_idx,
                       bool probe, uintptr_t retaddr);
@@ -1371,7 +1365,6 @@ int ppc_dcr_write(ppc_dcr_t *dcr_env, int dcrn, uint32_t val);
 #define POWERPC_CPU_TYPE_NAME(model) model POWERPC_CPU_TYPE_SUFFIX
 #define CPU_RESOLVING_TYPE TYPE_POWERPC_CPU
 
-#define cpu_signal_handler cpu_ppc_signal_handler
 #define cpu_list ppc_cpu_list
 
 /* MMU modes definitions */
diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index e735e53e26..465142616a 100644
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -356,7 +356,6 @@ void riscv_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,
 char *riscv_isa_string(RISCVCPU *cpu);
 void riscv_cpu_list(void);
 
-#define cpu_signal_handler riscv_cpu_signal_handler
 #define cpu_list riscv_cpu_list
 #define cpu_mmu_index riscv_cpu_mmu_index
 
@@ -372,7 +371,6 @@ void riscv_cpu_set_rdtime_fn(CPURISCVState *env, uint64_t (*fn)(uint32_t),
 void riscv_cpu_set_mode(CPURISCVState *env, target_ulong newpriv);
 
 void riscv_translate_init(void);
-int riscv_cpu_signal_handler(int host_signum, void *pinfo, void *puc);
 void QEMU_NORETURN riscv_raise_exception(CPURISCVState *env,
                                          uint32_t exception, uintptr_t pc);
 
diff --git a/target/rx/cpu.h b/target/rx/cpu.h
index faa3606f52..4ac71aec37 100644
--- a/target/rx/cpu.h
+++ b/target/rx/cpu.h
@@ -134,13 +134,9 @@ int rx_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
 hwaddr rx_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
 
 void rx_translate_init(void);
-int cpu_rx_signal_handler(int host_signum, void *pinfo,
-                           void *puc);
-
 void rx_cpu_list(void);
 void rx_cpu_unpack_psw(CPURXState *env, uint32_t psw, int rte);
 
-#define cpu_signal_handler cpu_rx_signal_handler
 #define cpu_list rx_cpu_list
 
 #include "exec/cpu-all.h"
diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h
index b26ae8fff2..3153d053e9 100644
--- a/target/s390x/cpu.h
+++ b/target/s390x/cpu.h
@@ -809,13 +809,6 @@ void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga,
 #define S390_CPU_TYPE_NAME(name) (name S390_CPU_TYPE_SUFFIX)
 #define CPU_RESOLVING_TYPE TYPE_S390_CPU
 
-/* you can call this signal handler from your SIGBUS and SIGSEGV
-   signal handlers to inform the virtual CPU of exceptions. non zero
-   is returned if the signal was handled by the virtual CPU.  */
-int cpu_s390x_signal_handler(int host_signum, void *pinfo, void *puc);
-#define cpu_signal_handler cpu_s390x_signal_handler
-
-
 /* interrupt.c */
 #define RA_IGNORED                  0
 void s390_program_interrupt(CPUS390XState *env, uint32_t code, uintptr_t ra);
diff --git a/target/sh4/cpu.h b/target/sh4/cpu.h
index 017a770214..56f7c32df9 100644
--- a/target/sh4/cpu.h
+++ b/target/sh4/cpu.h
@@ -213,8 +213,6 @@ void superh_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
                                     int mmu_idx, uintptr_t retaddr);
 
 void sh4_translate_init(void);
-int cpu_sh4_signal_handler(int host_signum, void *pinfo,
-                           void *puc);
 bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
                          MMUAccessType access_type, int mmu_idx,
                          bool probe, uintptr_t retaddr);
@@ -250,7 +248,6 @@ void cpu_load_tlb(CPUSH4State * env);
 #define SUPERH_CPU_TYPE_NAME(model) model SUPERH_CPU_TYPE_SUFFIX
 #define CPU_RESOLVING_TYPE TYPE_SUPERH_CPU
 
-#define cpu_signal_handler cpu_sh4_signal_handler
 #define cpu_list sh4_cpu_list
 
 /* MMU modes definitions */
diff --git a/target/sparc/cpu.h b/target/sparc/cpu.h
index 1f40d768d8..5a7f1ed5d6 100644
--- a/target/sparc/cpu.h
+++ b/target/sparc/cpu.h
@@ -648,13 +648,11 @@ hwaddr cpu_get_phys_page_nofault(CPUSPARCState *env, target_ulong addr,
                                            int mmu_idx);
 #endif
 #endif
-int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc);
 
 #define SPARC_CPU_TYPE_SUFFIX "-" TYPE_SPARC_CPU
 #define SPARC_CPU_TYPE_NAME(model) model SPARC_CPU_TYPE_SUFFIX
 #define CPU_RESOLVING_TYPE TYPE_SPARC_CPU
 
-#define cpu_signal_handler cpu_sparc_signal_handler
 #define cpu_list sparc_cpu_list
 
 /* MMU modes definitions */
diff --git a/target/tricore/cpu.h b/target/tricore/cpu.h
index 4b61a2c03f..c461387e71 100644
--- a/target/tricore/cpu.h
+++ b/target/tricore/cpu.h
@@ -362,7 +362,6 @@ void fpu_set_state(CPUTriCoreState *env);
 
 void tricore_cpu_list(void);
 
-#define cpu_signal_handler cpu_tricore_signal_handler
 #define cpu_list tricore_cpu_list
 
 static inline int cpu_mmu_index(CPUTriCoreState *env, bool ifetch)
@@ -377,7 +376,6 @@ typedef TriCoreCPU ArchCPU;
 
 void cpu_state_reset(CPUTriCoreState *s);
 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, uint32_t *flags)
diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h
index cbb720e7cc..646965f379 100644
--- a/target/xtensa/cpu.h
+++ b/target/xtensa/cpu.h
@@ -584,7 +584,6 @@ void xtensa_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
                                     MMUAccessType access_type,
                                     int mmu_idx, uintptr_t retaddr);
 
-#define cpu_signal_handler cpu_xtensa_signal_handler
 #define cpu_list xtensa_cpu_list
 
 #define XTENSA_CPU_TYPE_SUFFIX "-" TYPE_XTENSA_CPU
@@ -613,7 +612,6 @@ void check_interrupts(CPUXtensaState *s);
 void xtensa_irq_init(CPUXtensaState *env);
 qemu_irq *xtensa_get_extints(CPUXtensaState *env);
 qemu_irq xtensa_get_runstall(CPUXtensaState *env);
-int cpu_xtensa_signal_handler(int host_signum, void *pinfo, void *puc);
 void xtensa_cpu_list(void);
 void xtensa_sync_window_from_phys(CPUXtensaState *env);
 void xtensa_sync_phys_from_window(CPUXtensaState *env);