[RFC v10 44/49] target/arm: arch_dump: restrict ELFCLASS64 to AArch64

[Claudio Fontana]

this will allow us to restrict more code to TARGET_AARCH64

Signed-off-by: Claudio Fontana <cfontana@suse.de>
---
 target/arm/helper-a64.h |  2 ++
 target/arm/helper.h     |  1 -
 target/arm/arch_dump.c  | 12 +++++++-----
 target/arm/cpu.c        |  1 -
 target/arm/cpu64.c      |  4 ++++
 target/arm/tcg/helper.c | 13 +++++++++++--
 6 files changed, 24 insertions(+), 9 deletions(-)

diff --git a/target/arm/helper-a64.h b/target/arm/helper-a64.h
index c139fa81f9..342f55d577 100644
--- a/target/arm/helper-a64.h
+++ b/target/arm/helper-a64.h
@@ -119,3 +119,5 @@ DEF_HELPER_FLAGS_2(st2g_stub, TCG_CALL_NO_WG, void, env, 
i64)
 DEF_HELPER_FLAGS_2(ldgm, TCG_CALL_NO_WG, i64, env, i64)
 DEF_HELPER_FLAGS_3(stgm, TCG_CALL_NO_WG, void, env, i64, i64)
 DEF_HELPER_FLAGS_3(stzgm_tags, TCG_CALL_NO_WG, void, env, i64, i64)
+
+DEF_HELPER_FLAGS_2(rebuild_hflags_a64, TCG_CALL_NO_RWG, void, env, int)
diff --git a/target/arm/helper.h b/target/arm/helper.h
index ff8148ddc6..37dd9797a1 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -94,7 +94,6 @@ DEF_HELPER_FLAGS_1(rebuild_hflags_m32_newel, TCG_CALL_NO_RWG, 
void, env)
 DEF_HELPER_FLAGS_2(rebuild_hflags_m32, TCG_CALL_NO_RWG, void, env, int)
 DEF_HELPER_FLAGS_1(rebuild_hflags_a32_newel, TCG_CALL_NO_RWG, void, env)
 DEF_HELPER_FLAGS_2(rebuild_hflags_a32, TCG_CALL_NO_RWG, void, env, int)
-DEF_HELPER_FLAGS_2(rebuild_hflags_a64, TCG_CALL_NO_RWG, void, env, int)
 
 DEF_HELPER_FLAGS_5(probe_access, TCG_CALL_NO_WG, void, env, tl, i32, i32, i32)
 
diff --git a/target/arm/arch_dump.c b/target/arm/arch_dump.c
index 0184845310..9cc75a6fda 100644
--- a/target/arm/arch_dump.c
+++ b/target/arm/arch_dump.c
@@ -23,6 +23,8 @@
 #include "elf.h"
 #include "sysemu/dump.h"
 
+#ifdef TARGET_AARCH64
+
 /* struct user_pt_regs from arch/arm64/include/uapi/asm/ptrace.h */
 struct aarch64_user_regs {
     uint64_t regs[31];
@@ -141,7 +143,6 @@ static int 
aarch64_write_elf64_prfpreg(WriteCoreDumpFunction f,
     return 0;
 }
 
-#ifdef TARGET_AARCH64
 static off_t sve_zreg_offset(uint32_t vq, int n)
 {
     off_t off = sizeof(struct aarch64_user_sve_header);
@@ -229,7 +230,6 @@ static int aarch64_write_elf64_sve(WriteCoreDumpFunction f,
 
     return 0;
 }
-#endif
 
 int arm_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cs,
                              int cpuid, void *opaque)
@@ -272,15 +272,15 @@ int arm_cpu_write_elf64_note(WriteCoreDumpFunction f, 
CPUState *cs,
         return ret;
     }
 
-#ifdef TARGET_AARCH64
     if (cpu_isar_feature(aa64_sve, cpu)) {
         ret = aarch64_write_elf64_sve(f, env, cpuid, s);
     }
-#endif
 
     return ret;
 }
 
+#endif /* TARGET_AARCH64 */
+
 /* struct pt_regs from arch/arm/include/asm/ptrace.h */
 struct arm_user_regs {
     uint32_t regs[17];
@@ -449,12 +449,14 @@ ssize_t cpu_get_note_size(int class, int machine, int 
nr_cpus)
     size_t note_size;
 
     if (class == ELFCLASS64) {
+#ifdef TARGET_AARCH64
         note_size = AARCH64_PRSTATUS_NOTE_SIZE;
         note_size += AARCH64_PRFPREG_NOTE_SIZE;
-#ifdef TARGET_AARCH64
         if (cpu_isar_feature(aa64_sve, cpu)) {
             note_size += AARCH64_SVE_NOTE_SIZE(&cpu->env);
         }
+#else
+        return -1; /* unsupported */
 #endif
     } else {
         note_size = ARM_PRSTATUS_NOTE_SIZE;
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 78ffd72f6a..195fe49fbf 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1391,7 +1391,6 @@ static void arm_cpu_class_init(ObjectClass *oc, void 
*data)
     cc->asidx_from_attrs = arm_asidx_from_attrs;
     cc->vmsd = &vmstate_arm_cpu;
     cc->virtio_is_big_endian = arm_cpu_virtio_is_big_endian;
-    cc->write_elf64_note = arm_cpu_write_elf64_note;
     cc->write_elf32_note = arm_cpu_write_elf32_note;
 #endif
 
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index 971a4474b9..b0026e7ae9 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -623,6 +623,10 @@ static void aarch64_cpu_class_init(ObjectClass *oc, void 
*data)
     cc->gdb_arch_name = aarch64_gdb_arch_name;
     cc->dump_state = aarch64_cpu_dump_state;
 
+#ifndef CONFIG_USER_ONLY
+    cc->write_elf64_note = arm_cpu_write_elf64_note;
+#endif /* !CONFIG_USER_ONLY */
+
     object_class_property_add_bool(oc, "aarch64", aarch64_cpu_get_aarch64,
                                    aarch64_cpu_set_aarch64);
     object_class_property_set_description(oc, "aarch64",
diff --git a/target/arm/tcg/helper.c b/target/arm/tcg/helper.c
index 548c94e057..05a8563cea 100644
--- a/target/arm/tcg/helper.c
+++ b/target/arm/tcg/helper.c
@@ -18,6 +18,9 @@
 #include "cpregs.h"
 #include "tcg-cpu.h"
 
+uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
+                            ARMMMUIdx mmu_idx);
+
 static int vfp_gdb_get_reg(CPUARMState *env, GByteArray *buf, int reg)
 {
     ARMCPU *cpu = env_archcpu(env);
@@ -1152,8 +1155,10 @@ static uint32_t rebuild_hflags_a32(CPUARMState *env, int 
fp_el,
     return rebuild_hflags_common_32(env, fp_el, mmu_idx, flags);
 }
 
-static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
-                                   ARMMMUIdx mmu_idx)
+#ifdef TARGET_AARCH64
+
+uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
+                            ARMMMUIdx mmu_idx)
 {
     uint32_t flags = rebuild_hflags_aprofile(env);
     ARMMMUIdx stage1 = stage_1_mmu_idx(mmu_idx);
@@ -1272,6 +1277,8 @@ static uint32_t rebuild_hflags_a64(CPUARMState *env, int 
el, int fp_el,
     return rebuild_hflags_common(env, fp_el, mmu_idx, flags);
 }
 
+#endif /* TARGET_AARCH64 */
+
 static uint32_t rebuild_hflags_internal(CPUARMState *env)
 {
     int el = arm_current_el(env);
@@ -1332,6 +1339,7 @@ void HELPER(rebuild_hflags_a32)(CPUARMState *env, int el)
     env->hflags = rebuild_hflags_a32(env, fp_el, mmu_idx);
 }
 
+#ifdef TARGET_AARCH64
 void HELPER(rebuild_hflags_a64)(CPUARMState *env, int el)
 {
     int fp_el = fp_exception_el(env, el);
@@ -1339,6 +1347,7 @@ void HELPER(rebuild_hflags_a64)(CPUARMState *env, int el)
 
     env->hflags = rebuild_hflags_a64(env, el, fp_el, mmu_idx);
 }
+#endif /* TARGET_AARCH64 */
 
 static inline void assert_hflags_rebuild_correctly(CPUARMState *env)
 {
-- 
2.26.2