linux-user: define TARGET_ARCH_HAS_SETUP_FRAME

Instead of calling setup_frame() conditionally to a list of known targets,
define TARGET_ARCH_HAS_SETUP_FRAME if the target provides the function
and call it only if the macro is defined.

Move declarations of setup_frame() and setup_rt_frame() to
linux-user/signal-common.h

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180424192635.6027-21-laurent@vivier.eu>

linux-user/aarch64/target_signal.h

@@ -26,9 +26,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUARMState *state)
    return state->xregs[31];
 }
 
-void setup_frame(int sig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUARMState *env);
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info, target_sigset_t *set,
-                    CPUARMState *env);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif /* AARCH64_TARGET_SIGNAL_H */

linux-user/alpha/target_signal.h

@@ -55,9 +55,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUAlphaState *state)
 #define TARGET_GEN_SUBRNG6     -24
 #define TARGET_GEN_SUBRNG7     -25
 
-void setup_frame(int sig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUAlphaState *env);
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUAlphaState *env);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif /* ALPHA_TARGET_SIGNAL_H */

linux-user/arm/target_signal.h

@@ -26,9 +26,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUARMState *state)
    return state->regs[13];
 }
 
-void setup_frame(int usig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUARMState *regs);
-void setup_rt_frame(int usig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUARMState *env);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif /* ARM_TARGET_SIGNAL_H */

linux-user/cris/target_signal.h

@@ -26,9 +26,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUCRISState *state)
     return state->regs[14];
 }
 
-void setup_frame(int sig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUCRISState *env);
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                     target_sigset_t *set, CPUCRISState *env);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif /* CRIS_TARGET_SIGNAL_H */

linux-user/hppa/target_signal.h

@@ -25,8 +25,4 @@ static inline abi_ulong get_sp_from_cpustate(CPUHPPAState *state)
 {
     return state->gr[30];
 }
-
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUArchState *env);
 #endif /* HPPA_TARGET_SIGNAL_H */

linux-user/i386/target_signal.h

@@ -26,9 +26,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUX86State *state)
     return state->regs[R_ESP];
 }
 
-void setup_frame(int sig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUX86State *env);
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUX86State *env);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif /* I386_TARGET_SIGNAL_H */

linux-user/m68k/target_signal.h

@@ -26,9 +26,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUM68KState *state)
     return state->aregs[7];
 }
 
-void setup_frame(int sig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUM68KState *env);
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUM68KState *env);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif /* M68K_TARGET_SIGNAL_H */

linux-user/microblaze/target_signal.h

@@ -26,9 +26,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUMBState *state)
     return state->regs[1];
 }
 
-void setup_frame(int sig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUMBState *env);
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUMBState *env);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif /* MICROBLAZE_TARGET_SIGNAL_H */

linux-user/mips/target_signal.h

@@ -26,12 +26,8 @@ static inline abi_ulong get_sp_from_cpustate(CPUMIPSState *state)
     return state->active_tc.gpr[29];
 }
 
-# if defined(TARGET_ABI_MIPSO32)
+#if defined(TARGET_ABI_MIPSO32)
 /* compare linux/arch/mips/kernel/signal.c:setup_frame() */
-void setup_frame(int sig, struct target_sigaction * ka,
-                 target_sigset_t *set, CPUMIPSState *regs);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUMIPSState *env);
 #endif /* MIPS_TARGET_SIGNAL_H */

linux-user/mips64/target_signal.h

@@ -25,8 +25,4 @@ static inline abi_ulong get_sp_from_cpustate(CPUMIPSState *state)
 {
     return state->active_tc.gpr[29];
 }
-
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUMIPSState *env);
 #endif /* MIPS64_TARGET_SIGNAL_H */

linux-user/nios2/target_signal.h

@@ -22,9 +22,4 @@ static inline abi_ulong get_sp_from_cpustate(CPUNios2State *state)
 {
     return state->regs[R_SP];
 }
-
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set,
-                    CPUNios2State *env);
 #endif /* TARGET_SIGNAL_H */

linux-user/openrisc/target_signal.h

@@ -22,8 +22,4 @@ static inline abi_ulong get_sp_from_cpustate(CPUOpenRISCState *state)
 {
     return cpu_get_gpr(state, 1);
 }
-
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUOpenRISCState *env);
 #endif /* OPENRISC_TARGET_SIGNAL_H */

linux-user/ppc/target_signal.h

@@ -27,10 +27,6 @@ static inline abi_ulong get_sp_from_cpustate(CPUPPCState *state)
 }
 
 #if !defined(TARGET_PPC64)
-void setup_frame(int sig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUPPCState *env);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUPPCState *env);
 #endif /* PPC_TARGET_SIGNAL_H */

linux-user/riscv/target_signal.h

@@ -19,8 +19,4 @@ static inline abi_ulong get_sp_from_cpustate(CPURISCVState *state)
 {
    return state->gpr[xSP];
 }
-
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPURISCVState *env);
 #endif /* TARGET_SIGNAL_H */

linux-user/s390x/target_signal.h

@@ -23,9 +23,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUS390XState *state)
    return state->regs[15];
 }
 
-void setup_frame(int sig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUS390XState *env);
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUS390XState *env);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif /* S390X_TARGET_SIGNAL_H */

linux-user/sh4/target_signal.h

@@ -26,10 +26,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUSH4State *state)
     return state->gregs[15];
 }
 
-void setup_frame(int sig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUSH4State *regs);
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUSH4State *regs);
-
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif /* SH4_TARGET_SIGNAL_H */

linux-user/signal-common.h

@@ -47,4 +47,11 @@ void tswap_siginfo(target_siginfo_t *tinfo,
 void set_sigmask(const sigset_t *set);
 void force_sig(int sig);
 void force_sigsegv(int oldsig);
+#if defined(TARGET_ARCH_HAS_SETUP_FRAME)
+void setup_frame(int sig, struct target_sigaction *ka,
+                 target_sigset_t *set, CPUArchState *env);
+#endif
+void setup_rt_frame(int sig, struct target_sigaction *ka,
+                    target_siginfo_t *info,
+                    target_sigset_t *set, CPUArchState *env);
 #endif

linux-user/signal.c

@@ -873,18 +873,15 @@ static void handle_pending_signal(CPUArchState *cpu_env, int sig,
         }
 #endif
         /* prepare the stack frame of the virtual CPU */
-#if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64) \
-        || defined(TARGET_OPENRISC) || defined(TARGET_TILEGX) \
-        || defined(TARGET_PPC64) || defined(TARGET_HPPA) \
-        || defined(TARGET_NIOS2) || defined(TARGET_X86_64) \
-        || defined(TARGET_RISCV) || defined(TARGET_XTENSA)
-        /* These targets do not have traditional signals.  */
-        setup_rt_frame(sig, sa, &k->info, &target_old_set, cpu_env);
-#else
-        if (sa->sa_flags & TARGET_SA_SIGINFO)
+#if defined(TARGET_ARCH_HAS_SETUP_FRAME)
+        if (sa->sa_flags & TARGET_SA_SIGINFO) {
             setup_rt_frame(sig, sa, &k->info, &target_old_set, cpu_env);
-        else
+        } else {
             setup_frame(sig, sa, &target_old_set, cpu_env);
+        }
+#else
+        /* These targets do not have traditional signals.  */
+        setup_rt_frame(sig, sa, &k->info, &target_old_set, cpu_env);
 #endif
         if (sa->sa_flags & TARGET_SA_RESETHAND) {
             sa->_sa_handler = TARGET_SIG_DFL;

linux-user/sparc/target_signal.h

@@ -33,9 +33,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUSPARCState *state)
     return state->regwptr[UREG_FP];
 }
 
-void setup_frame(int sig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUSPARCState *env);
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUSPARCState *env);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif /* SPARC_TARGET_SIGNAL_H */

linux-user/sparc64/target_signal.h

@@ -33,9 +33,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUSPARCState *state)
     return state->regwptr[UREG_FP];
 }
 
-void setup_frame(int sig, struct target_sigaction *ka,
-                 target_sigset_t *set, CPUSPARCState *env);
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUSPARCState *env);
+#define TARGET_ARCH_HAS_SETUP_FRAME
 #endif /* SPARC64_TARGET_SIGNAL_H */

linux-user/tilegx/target_signal.h

@@ -24,8 +24,4 @@ static inline abi_ulong get_sp_from_cpustate(CPUTLGState *state)
 {
     return state->regs[TILEGX_R_SP];
 }
-
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUArchState *env);
 #endif /* TILEGX_TARGET_SIGNAL_H */

linux-user/x86_64/target_signal.h

@@ -25,8 +25,4 @@ static inline abi_ulong get_sp_from_cpustate(CPUX86State *state)
 {
     return state->regs[R_ESP];
 }
-
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUX86State *env);
 #endif /* X86_64_TARGET_SIGNAL_H */

linux-user/xtensa/target_signal.h

@@ -24,8 +24,4 @@ static inline abi_ulong get_sp_from_cpustate(CPUXtensaState *state)
 {
     return state->regs[1];
 }
-
-void setup_rt_frame(int sig, struct target_sigaction *ka,
-                    target_siginfo_t *info,
-                    target_sigset_t *set, CPUXtensaState *env);
 #endif