Initial overlay of HQEMU 2.5.2 changes onto underlying 2.5.1 QEMU GIT tree2.5.1_overlay

1 files changed, 77 insertions, 0 deletions

diff --git a/llvm/hqemu-helper.c b/llvm/hqemu-helper.c
new file mode 100644
index 0000000..6325716
--- /dev/null
+++ b/llvm/hqemu-helper.c
@@ -0,0 +1,77 @@
+#include "cpu.h"
+#include "tcg.h"
+#include "exec/helper-proto.h"
+#include "hqemu.h"
+#include "fpu/softfloat-native.h"
+
+CPUArchState basereg;
+target_ulong pcid;
+
+#if defined(TARGET_I386)
+XMMReg xmm_reg;
+#endif
+
+extern TranslationBlock *tbs;
+
+void *ibtc_lookup(CPUArchState *env);
+void *cpbl_lookup(CPUArchState *env);
+int cpbl_validate(CPUArchState *env, target_ulong pc, int id);
+
+/* This helper is a hack to export symbols of helper functions in the LLVM
+ * bitcode file. If a target is alerted with lacks of symbols of function/variable,
+ * add such symbols in this helper by accessing it. */
+void helper_export_hqemu(CPUArchState *env)
+{
+    helper_lookup_ibtc(env);
+    helper_lookup_cpbl(env);
+    helper_validate_cpbl(env, 0, 0);
+
+#if defined(CONFIG_SOFTMMU) && defined(CONFIG_LLVM)
+    target_ulong ptr = 0;
+    llvm_ret_ldub_mmu(env, ptr, 0);
+    llvm_le_lduw_mmu(env, ptr, 0);
+    llvm_le_ldul_mmu(env, ptr, 0);
+    llvm_le_ldq_mmu(env, ptr, 0);
+    llvm_be_lduw_mmu(env, ptr, 0);
+    llvm_be_ldul_mmu(env, ptr, 0);
+    llvm_be_ldq_mmu(env, ptr, 0);
+    llvm_ret_ldsb_mmu(env, ptr, 0);
+    llvm_le_ldsw_mmu(env, ptr, 0);
+    llvm_le_ldsl_mmu(env, ptr, 0);
+    llvm_be_ldsw_mmu(env, ptr, 0);
+    llvm_be_ldsl_mmu(env, ptr, 0);
+    llvm_ret_stb_mmu(env, ptr, 0, 0);
+    llvm_le_stw_mmu(env, ptr, 0, 0);
+    llvm_le_stl_mmu(env, ptr, 0, 0);
+    llvm_le_stq_mmu(env, ptr, 0, 0);
+    llvm_be_stw_mmu(env, ptr, 0, 0);
+    llvm_be_stl_mmu(env, ptr, 0, 0);
+    llvm_be_stq_mmu(env, ptr, 0, 0);
+#endif
+}
+
+void helper_verify_tb(CPUArchState *env, int id)
+{
+    static TranslationBlock *last_tb;
+    TranslationBlock *tb = &tbs[id];
+    if (tb->mode == BLOCK_INVALID) {
+        fprintf(stderr, "%s: tb=%p pc=" TARGET_FMT_lx " last_pc="
+                TARGET_FMT_lx "\n", __func__, tb, tb->pc,
+                (last_tb) ? last_tb->pc : -1U);
+    }
+    last_tb = tb;
+}
+
+/*
+ * helper_profile_exec is used to profile LLVM translated code.
+ */
+void helper_profile_exec(CPUArchState *env, void *counter_p, int idx)
+{
+    CPUState *cpu = ENV_GET_CPU(env);
+    uint64_t **counter = (uint64_t **)counter_p;
+    counter[cpu->cpu_index][idx]++;
+}
+
+/*
+ * vim: ts=8 sts=4 sw=4 expandtab
+ */