6 files changed, 88 insertions, 35 deletions
diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c
index 68f1e8e..7391e2a 100644
--- a/linux-user/sparc/cpu_loop.c
+++ b/linux-user/sparc/cpu_loop.c
@@ -220,7 +220,7 @@ void cpu_loop (CPUSPARCState *env)
         cpu_exec_start(cs);
         trapnr = cpu_exec(cs);
         cpu_exec_end(cs);
-        process_queued_cpu_work(cs);
+        qemu_process_cpu_events(cs);
 
         switch (trapnr) {
         case TARGET_TT_SYSCALL:
@@ -357,14 +357,12 @@ void cpu_loop (CPUSPARCState *env)
     }
 }
 
-void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs)
+void init_main_thread(CPUState *cs, struct image_info *info)
 {
-    int i;
-    env->pc = regs->pc;
-    env->npc = regs->npc;
-    env->y = regs->y;
-    for(i = 0; i < 8; i++)
-        env->gregs[i] = regs->u_regs[i];
-    for(i = 0; i < 8; i++)
-        env->regwptr[i] = regs->u_regs[i + 8];
+    CPUArchState *env = cpu_env(cs);
+
+    env->pc = info->entry;
+    env->npc = env->pc + 4;
+    env->regwptr[WREG_SP] = (info->start_stack - 16 * sizeof(abi_ulong)
+                             - TARGET_STACK_BIAS);
 }
diff --git a/linux-user/sparc/elfload.c b/linux-user/sparc/elfload.c
new file mode 100644
index 0000000..32ca1b0
--- /dev/null
+++ b/linux-user/sparc/elfload.c
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "qemu/osdep.h"
+#include "qemu.h"
+#include "loader.h"
+#include "elf.h"
+
+
+const char *get_elf_cpu_model(uint32_t eflags)
+{
+#ifdef TARGET_SPARC64
+    return "TI UltraSparc II";
+#else
+    return "Fujitsu MB86904";
+#endif
+}
+
+abi_ulong get_elf_hwcap(CPUState *cs)
+{
+    /* There are not many sparc32 hwcap bits -- we have all of them. */
+    uint32_t r = HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR |
+                 HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV;
+
+#ifdef TARGET_SPARC64
+    CPUSPARCState *env = cpu_env(cs);
+    uint32_t features = env->def.features;
+
+    r |= HWCAP_SPARC_V9 | HWCAP_SPARC_V8PLUS;
+    /* 32x32 multiply and divide are efficient. */
+    r |= HWCAP_SPARC_MUL32 | HWCAP_SPARC_DIV32;
+    /* We don't have an internal feature bit for this. */
+    r |= HWCAP_SPARC_POPC;
+    r |= features & CPU_FEATURE_FSMULD ? HWCAP_SPARC_FSMULD : 0;
+    r |= features & CPU_FEATURE_VIS1 ? HWCAP_SPARC_VIS : 0;
+    r |= features & CPU_FEATURE_VIS2 ? HWCAP_SPARC_VIS2 : 0;
+    r |= features & CPU_FEATURE_FMAF ? HWCAP_SPARC_FMAF : 0;
+    r |= features & CPU_FEATURE_VIS3 ? HWCAP_SPARC_VIS3 : 0;
+    r |= features & CPU_FEATURE_IMA ? HWCAP_SPARC_IMA : 0;
+#endif
+
+    return r;
+}
diff --git a/linux-user/sparc/signal.c b/linux-user/sparc/signal.c
index 8181b8b..d339f89 100644
--- a/linux-user/sparc/signal.c
+++ b/linux-user/sparc/signal.c
@@ -21,6 +21,8 @@
 #include "user-internals.h"
 #include "signal-common.h"
 #include "linux-user/trace.h"
+#include "target_ptrace.h"
+
 
 /* A Sparc register window */
 struct target_reg_window {
diff --git a/linux-user/sparc/target_elf.h b/linux-user/sparc/target_elf.h
index a510ceb..7827767 100644
--- a/linux-user/sparc/target_elf.h
+++ b/linux-user/sparc/target_elf.h
@@ -7,12 +7,18 @@
 
 #ifndef SPARC_TARGET_ELF_H
 #define SPARC_TARGET_ELF_H
-static inline const char *cpu_get_model(uint32_t eflags)
-{
-#ifdef TARGET_SPARC64
-    return "TI UltraSparc II";
+
+#ifndef TARGET_SPARC64
+# define ELF_CLASS              ELFCLASS32
+# define ELF_MACHINE            EM_SPARC
+#elif defined(TARGET_ABI32)
+# define ELF_CLASS              ELFCLASS32
+# define elf_check_machine(x)   ((x) == EM_SPARC32PLUS || (x) == EM_SPARC)
 #else
-    return "Fujitsu MB86904";
+# define ELF_CLASS              ELFCLASS64
+# define ELF_MACHINE            EM_SPARCV9
 #endif
-}
+
+#define HAVE_ELF_HWCAP          1
+
 #endif
diff --git a/linux-user/sparc/target_ptrace.h b/linux-user/sparc/target_ptrace.h
new file mode 100644
index 0000000..a4d5416
--- /dev/null
+++ b/linux-user/sparc/target_ptrace.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef SPARC_TARGET_PTRACE_H
+#define SPARC_TARGET_PTRACE_H
+
+/* See arch/sparc/include/uapi/asm/ptrace.h. */
+struct target_pt_regs {
+#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
+    abi_ulong u_regs[16];
+    abi_ulong tstate;
+    abi_ulong pc;
+    abi_ulong npc;
+    uint32_t y;
+    uint32_t magic;
+#else
+    abi_ulong psr;
+    abi_ulong pc;
+    abi_ulong npc;
+    abi_ulong y;
+    abi_ulong u_regs[16];
+#endif
+};
+
+#endif /* SPARC_TARGET_PTRACE_H */
diff --git a/linux-user/sparc/target_syscall.h b/linux-user/sparc/target_syscall.h
index e421165..a90ed29 100644
--- a/linux-user/sparc/target_syscall.h
+++ b/linux-user/sparc/target_syscall.h
@@ -1,25 +1,6 @@
 #ifndef SPARC_TARGET_SYSCALL_H
 #define SPARC_TARGET_SYSCALL_H
 
-#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
-struct target_pt_regs {
-    abi_ulong u_regs[16];
-    abi_ulong tstate;
-    abi_ulong pc;
-    abi_ulong npc;
-    uint32_t y;
-    uint32_t magic;
-};
-#else
-struct target_pt_regs {
-    abi_ulong psr;
-    abi_ulong pc;
-    abi_ulong npc;
-    abi_ulong y;
-    abi_ulong u_regs[16];
-};
-#endif
-
 #ifdef TARGET_SPARC64
 # define UNAME_MACHINE "sparc64"
 #else