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From: "Bruno Larsen (billionai)" <bruno.larsen@eldorado.org.br>
To: qemu-devel@nongnu.org
Cc: farosas@linux.ibm.com, luis.pires@eldorado.org.br,
	lucas.araujo@eldorado.org.br, fernando.valle@eldorado.org.br,
	qemu-ppc@nongnu.org,
	"Bruno Larsen \(billionai\)" <bruno.larsen@eldorado.org.br>,
	matheus.ferst@eldorado.org.br, david@gibson.dropbear.id.au
Subject: [PATCH v3] target/ppc: code motion from translate_init.c.inc to gdbstub.c
Date: Wed, 14 Apr 2021 11:59:47 -0300
Message-ID: <20210414145947.30155-1-bruno.larsen@eldorado.org.br> (raw)

All the code related to gdb has been moved from translate_init.c.inc
file to the gdbstub.c file, where it makes more sense.

This new version puts the prototypes in internal.h, to not expose
them unnecessarily.

Signed-off-by: Bruno Larsen (billionai) <bruno.larsen@eldorado.org.br>
Suggested-by: Fabiano Rosas <farosas@linux.ibm.com>
---
 target/ppc/gdbstub.c            | 258 ++++++++++++++++++++++++++++++++
 target/ppc/internal.h           |   5 +
 target/ppc/translate_init.c.inc | 254 +------------------------------
 3 files changed, 264 insertions(+), 253 deletions(-)

diff --git a/target/ppc/gdbstub.c b/target/ppc/gdbstub.c
index c28319fb97..67e8a3175f 100644
--- a/target/ppc/gdbstub.c
+++ b/target/ppc/gdbstub.c
@@ -20,6 +20,7 @@
 #include "qemu/osdep.h"
 #include "cpu.h"
 #include "exec/gdbstub.h"
+#include "exec/helper-proto.h"
 
 static int ppc_gdb_register_len_apple(int n)
 {
@@ -387,3 +388,260 @@ const char *ppc_gdb_get_dynamic_xml(CPUState *cs, const char *xml_name)
     return NULL;
 }
 #endif
+
+static bool avr_need_swap(CPUPPCState *env)
+{
+#ifdef HOST_WORDS_BIGENDIAN
+    return msr_le;
+#else
+    return !msr_le;
+#endif
+}
+
+#if !defined(CONFIG_USER_ONLY)
+static int gdb_find_spr_idx(CPUPPCState *env, int n)
+{
+    int i;
+
+    for (i = 0; i < ARRAY_SIZE(env->spr_cb); i++) {
+        ppc_spr_t *spr = &env->spr_cb[i];
+
+        if (spr->name && spr->gdb_id == n) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+static int gdb_get_spr_reg(CPUPPCState *env, GByteArray *buf, int n)
+{
+    int reg;
+    int len;
+
+    reg = gdb_find_spr_idx(env, n);
+    if (reg < 0) {
+        return 0;
+    }
+
+    len = TARGET_LONG_SIZE;
+    gdb_get_regl(buf, env->spr[reg]);
+    ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, len), len);
+    return len;
+}
+
+static int gdb_set_spr_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
+{
+    int reg;
+    int len;
+
+    reg = gdb_find_spr_idx(env, n);
+    if (reg < 0) {
+        return 0;
+    }
+
+    len = TARGET_LONG_SIZE;
+    ppc_maybe_bswap_register(env, mem_buf, len);
+    env->spr[reg] = ldn_p(mem_buf, len);
+
+    return len;
+}
+#endif
+
+static int gdb_get_float_reg(CPUPPCState *env, GByteArray *buf, int n)
+{
+    uint8_t *mem_buf;
+    if (n < 32) {
+        gdb_get_reg64(buf, *cpu_fpr_ptr(env, n));
+        mem_buf = gdb_get_reg_ptr(buf, 8);
+        ppc_maybe_bswap_register(env, mem_buf, 8);
+        return 8;
+    }
+    if (n == 32) {
+        gdb_get_reg32(buf, env->fpscr);
+        mem_buf = gdb_get_reg_ptr(buf, 4);
+        ppc_maybe_bswap_register(env, mem_buf, 4);
+        return 4;
+    }
+    return 0;
+}
+
+static int gdb_set_float_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
+{
+    if (n < 32) {
+        ppc_maybe_bswap_register(env, mem_buf, 8);
+        *cpu_fpr_ptr(env, n) = ldq_p(mem_buf);
+        return 8;
+    }
+    if (n == 32) {
+        ppc_maybe_bswap_register(env, mem_buf, 4);
+        store_fpscr(env, ldl_p(mem_buf), 0xffffffff);
+        return 4;
+    }
+    return 0;
+}
+
+static int gdb_get_avr_reg(CPUPPCState *env, GByteArray *buf, int n)
+{
+    uint8_t *mem_buf;
+
+    if (n < 32) {
+        ppc_avr_t *avr = cpu_avr_ptr(env, n);
+        if (!avr_need_swap(env)) {
+            gdb_get_reg128(buf, avr->u64[0] , avr->u64[1]);
+        } else {
+            gdb_get_reg128(buf, avr->u64[1] , avr->u64[0]);
+        }
+        mem_buf = gdb_get_reg_ptr(buf, 16);
+        ppc_maybe_bswap_register(env, mem_buf, 8);
+        ppc_maybe_bswap_register(env, mem_buf + 8, 8);
+        return 16;
+    }
+    if (n == 32) {
+        gdb_get_reg32(buf, helper_mfvscr(env));
+        mem_buf = gdb_get_reg_ptr(buf, 4);
+        ppc_maybe_bswap_register(env, mem_buf, 4);
+        return 4;
+    }
+    if (n == 33) {
+        gdb_get_reg32(buf, (uint32_t)env->spr[SPR_VRSAVE]);
+        mem_buf = gdb_get_reg_ptr(buf, 4);
+        ppc_maybe_bswap_register(env, mem_buf, 4);
+        return 4;
+    }
+    return 0;
+}
+
+static int gdb_set_avr_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
+{
+    if (n < 32) {
+        ppc_avr_t *avr = cpu_avr_ptr(env, n);
+        ppc_maybe_bswap_register(env, mem_buf, 8);
+        ppc_maybe_bswap_register(env, mem_buf + 8, 8);
+        if (!avr_need_swap(env)) {
+            avr->u64[0] = ldq_p(mem_buf);
+            avr->u64[1] = ldq_p(mem_buf + 8);
+        } else {
+            avr->u64[1] = ldq_p(mem_buf);
+            avr->u64[0] = ldq_p(mem_buf + 8);
+        }
+        return 16;
+    }
+    if (n == 32) {
+        ppc_maybe_bswap_register(env, mem_buf, 4);
+        helper_mtvscr(env, ldl_p(mem_buf));
+        return 4;
+    }
+    if (n == 33) {
+        ppc_maybe_bswap_register(env, mem_buf, 4);
+        env->spr[SPR_VRSAVE] = (target_ulong)ldl_p(mem_buf);
+        return 4;
+    }
+    return 0;
+}
+
+static int gdb_get_spe_reg(CPUPPCState *env, GByteArray *buf, int n)
+{
+    if (n < 32) {
+#if defined(TARGET_PPC64)
+        gdb_get_reg32(buf, env->gpr[n] >> 32);
+        ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 4), 4);
+#else
+        gdb_get_reg32(buf, env->gprh[n]);
+#endif
+        return 4;
+    }
+    if (n == 32) {
+        gdb_get_reg64(buf, env->spe_acc);
+        ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 8), 8);
+        return 8;
+    }
+    if (n == 33) {
+        gdb_get_reg32(buf, env->spe_fscr);
+        ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 4), 4);
+        return 4;
+    }
+    return 0;
+}
+
+static int gdb_set_spe_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
+{
+    if (n < 32) {
+#if defined(TARGET_PPC64)
+        target_ulong lo = (uint32_t)env->gpr[n];
+        target_ulong hi;
+
+        ppc_maybe_bswap_register(env, mem_buf, 4);
+
+        hi = (target_ulong)ldl_p(mem_buf) << 32;
+        env->gpr[n] = lo | hi;
+#else
+        env->gprh[n] = ldl_p(mem_buf);
+#endif
+        return 4;
+    }
+    if (n == 32) {
+        ppc_maybe_bswap_register(env, mem_buf, 8);
+        env->spe_acc = ldq_p(mem_buf);
+        return 8;
+    }
+    if (n == 33) {
+        ppc_maybe_bswap_register(env, mem_buf, 4);
+        env->spe_fscr = ldl_p(mem_buf);
+        return 4;
+    }
+    return 0;
+}
+
+static int gdb_get_vsx_reg(CPUPPCState *env, GByteArray *buf, int n)
+{
+    if (n < 32) {
+        gdb_get_reg64(buf, *cpu_vsrl_ptr(env, n));
+        ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 8), 8);
+        return 8;
+    }
+    return 0;
+}
+
+static int gdb_set_vsx_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
+{
+    if (n < 32) {
+        ppc_maybe_bswap_register(env, mem_buf, 8);
+        *cpu_vsrl_ptr(env, n) = ldq_p(mem_buf);
+        return 8;
+    }
+    return 0;
+}
+
+gchar *ppc_gdb_arch_name(CPUState *cs)
+{
+#if defined(TARGET_PPC64)
+    return g_strdup("powerpc:common64");
+#else
+    return g_strdup("powerpc:common");
+#endif
+}
+
+void ppc_gdb_init(CPUState *cs, PowerPCCPUClass *pcc)
+{
+
+    if (pcc->insns_flags & PPC_FLOAT) {
+        gdb_register_coprocessor(cs, gdb_get_float_reg, gdb_set_float_reg,
+                                 33, "power-fpu.xml", 0);
+    }
+    if (pcc->insns_flags & PPC_ALTIVEC) {
+        gdb_register_coprocessor(cs, gdb_get_avr_reg, gdb_set_avr_reg,
+                                 34, "power-altivec.xml", 0);
+    }
+    if (pcc->insns_flags & PPC_SPE) {
+        gdb_register_coprocessor(cs, gdb_get_spe_reg, gdb_set_spe_reg,
+                                 34, "power-spe.xml", 0);
+    }
+    if (pcc->insns_flags2 & PPC2_VSX) {
+        gdb_register_coprocessor(cs, gdb_get_vsx_reg, gdb_set_vsx_reg,
+                                 32, "power-vsx.xml", 0);
+    }
+#ifndef CONFIG_USER_ONLY
+    gdb_register_coprocessor(cs, gdb_get_spr_reg, gdb_set_spr_reg,
+                             pcc->gdb_num_sprs, "power-spr.xml", 0);
+#endif
+}
diff --git a/target/ppc/internal.h b/target/ppc/internal.h
index d547448065..c401658e8d 100644
--- a/target/ppc/internal.h
+++ b/target/ppc/internal.h
@@ -215,4 +215,9 @@ void helper_compute_fprf_float128(CPUPPCState *env, float128 arg);
 void ppc_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
                                  MMUAccessType access_type,
                                  int mmu_idx, uintptr_t retaddr);
+
+/* gdbstub.c */
+void ppc_gdb_init(CPUState *cs, PowerPCCPUClass *ppc);
+gchar *ppc_gdb_arch_name(CPUState *cs);
+
 #endif /* PPC_INTERNAL_H */
diff --git a/target/ppc/translate_init.c.inc b/target/ppc/translate_init.c.inc
index c03a7c4f52..80fef0b90d 100644
--- a/target/ppc/translate_init.c.inc
+++ b/target/ppc/translate_init.c.inc
@@ -9895,230 +9895,6 @@ static void dump_ppc_insns(CPUPPCState *env)
     }
 }
 #endif
-
-static bool avr_need_swap(CPUPPCState *env)
-{
-#ifdef HOST_WORDS_BIGENDIAN
-    return msr_le;
-#else
-    return !msr_le;
-#endif
-}
-
-#if !defined(CONFIG_USER_ONLY)
-static int gdb_find_spr_idx(CPUPPCState *env, int n)
-{
-    int i;
-
-    for (i = 0; i < ARRAY_SIZE(env->spr_cb); i++) {
-        ppc_spr_t *spr = &env->spr_cb[i];
-
-        if (spr->name && spr->gdb_id == n) {
-            return i;
-        }
-    }
-    return -1;
-}
-
-static int gdb_get_spr_reg(CPUPPCState *env, GByteArray *buf, int n)
-{
-    int reg;
-    int len;
-
-    reg = gdb_find_spr_idx(env, n);
-    if (reg < 0) {
-        return 0;
-    }
-
-    len = TARGET_LONG_SIZE;
-    gdb_get_regl(buf, env->spr[reg]);
-    ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, len), len);
-    return len;
-}
-
-static int gdb_set_spr_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
-{
-    int reg;
-    int len;
-
-    reg = gdb_find_spr_idx(env, n);
-    if (reg < 0) {
-        return 0;
-    }
-
-    len = TARGET_LONG_SIZE;
-    ppc_maybe_bswap_register(env, mem_buf, len);
-    env->spr[reg] = ldn_p(mem_buf, len);
-
-    return len;
-}
-#endif
-
-static int gdb_get_float_reg(CPUPPCState *env, GByteArray *buf, int n)
-{
-    uint8_t *mem_buf;
-    if (n < 32) {
-        gdb_get_reg64(buf, *cpu_fpr_ptr(env, n));
-        mem_buf = gdb_get_reg_ptr(buf, 8);
-        ppc_maybe_bswap_register(env, mem_buf, 8);
-        return 8;
-    }
-    if (n == 32) {
-        gdb_get_reg32(buf, env->fpscr);
-        mem_buf = gdb_get_reg_ptr(buf, 4);
-        ppc_maybe_bswap_register(env, mem_buf, 4);
-        return 4;
-    }
-    return 0;
-}
-
-static int gdb_set_float_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
-{
-    if (n < 32) {
-        ppc_maybe_bswap_register(env, mem_buf, 8);
-        *cpu_fpr_ptr(env, n) = ldq_p(mem_buf);
-        return 8;
-    }
-    if (n == 32) {
-        ppc_maybe_bswap_register(env, mem_buf, 4);
-        helper_store_fpscr(env, ldl_p(mem_buf), 0xffffffff);
-        return 4;
-    }
-    return 0;
-}
-
-static int gdb_get_avr_reg(CPUPPCState *env, GByteArray *buf, int n)
-{
-    uint8_t *mem_buf;
-
-    if (n < 32) {
-        ppc_avr_t *avr = cpu_avr_ptr(env, n);
-        if (!avr_need_swap(env)) {
-            gdb_get_reg128(buf, avr->u64[0] , avr->u64[1]);
-        } else {
-            gdb_get_reg128(buf, avr->u64[1] , avr->u64[0]);
-        }
-        mem_buf = gdb_get_reg_ptr(buf, 16);
-        ppc_maybe_bswap_register(env, mem_buf, 8);
-        ppc_maybe_bswap_register(env, mem_buf + 8, 8);
-        return 16;
-    }
-    if (n == 32) {
-        gdb_get_reg32(buf, helper_mfvscr(env));
-        mem_buf = gdb_get_reg_ptr(buf, 4);
-        ppc_maybe_bswap_register(env, mem_buf, 4);
-        return 4;
-    }
-    if (n == 33) {
-        gdb_get_reg32(buf, (uint32_t)env->spr[SPR_VRSAVE]);
-        mem_buf = gdb_get_reg_ptr(buf, 4);
-        ppc_maybe_bswap_register(env, mem_buf, 4);
-        return 4;
-    }
-    return 0;
-}
-
-static int gdb_set_avr_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
-{
-    if (n < 32) {
-        ppc_avr_t *avr = cpu_avr_ptr(env, n);
-        ppc_maybe_bswap_register(env, mem_buf, 8);
-        ppc_maybe_bswap_register(env, mem_buf + 8, 8);
-        if (!avr_need_swap(env)) {
-            avr->u64[0] = ldq_p(mem_buf);
-            avr->u64[1] = ldq_p(mem_buf + 8);
-        } else {
-            avr->u64[1] = ldq_p(mem_buf);
-            avr->u64[0] = ldq_p(mem_buf + 8);
-        }
-        return 16;
-    }
-    if (n == 32) {
-        ppc_maybe_bswap_register(env, mem_buf, 4);
-        helper_mtvscr(env, ldl_p(mem_buf));
-        return 4;
-    }
-    if (n == 33) {
-        ppc_maybe_bswap_register(env, mem_buf, 4);
-        env->spr[SPR_VRSAVE] = (target_ulong)ldl_p(mem_buf);
-        return 4;
-    }
-    return 0;
-}
-
-static int gdb_get_spe_reg(CPUPPCState *env, GByteArray *buf, int n)
-{
-    if (n < 32) {
-#if defined(TARGET_PPC64)
-        gdb_get_reg32(buf, env->gpr[n] >> 32);
-        ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 4), 4);
-#else
-        gdb_get_reg32(buf, env->gprh[n]);
-#endif
-        return 4;
-    }
-    if (n == 32) {
-        gdb_get_reg64(buf, env->spe_acc);
-        ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 8), 8);
-        return 8;
-    }
-    if (n == 33) {
-        gdb_get_reg32(buf, env->spe_fscr);
-        ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 4), 4);
-        return 4;
-    }
-    return 0;
-}
-
-static int gdb_set_spe_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
-{
-    if (n < 32) {
-#if defined(TARGET_PPC64)
-        target_ulong lo = (uint32_t)env->gpr[n];
-        target_ulong hi;
-
-        ppc_maybe_bswap_register(env, mem_buf, 4);
-
-        hi = (target_ulong)ldl_p(mem_buf) << 32;
-        env->gpr[n] = lo | hi;
-#else
-        env->gprh[n] = ldl_p(mem_buf);
-#endif
-        return 4;
-    }
-    if (n == 32) {
-        ppc_maybe_bswap_register(env, mem_buf, 8);
-        env->spe_acc = ldq_p(mem_buf);
-        return 8;
-    }
-    if (n == 33) {
-        ppc_maybe_bswap_register(env, mem_buf, 4);
-        env->spe_fscr = ldl_p(mem_buf);
-        return 4;
-    }
-    return 0;
-}
-
-static int gdb_get_vsx_reg(CPUPPCState *env, GByteArray *buf, int n)
-{
-    if (n < 32) {
-        gdb_get_reg64(buf, *cpu_vsrl_ptr(env, n));
-        ppc_maybe_bswap_register(env, gdb_get_reg_ptr(buf, 8), 8);
-        return 8;
-    }
-    return 0;
-}
-
-static int gdb_set_vsx_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
-{
-    if (n < 32) {
-        ppc_maybe_bswap_register(env, mem_buf, 8);
-        *cpu_vsrl_ptr(env, n) = ldq_p(mem_buf);
-        return 8;
-    }
-    return 0;
-}
-
 static int ppc_fixup_cpu(PowerPCCPU *cpu)
 {
     CPUPPCState *env = &cpu->env;
@@ -10174,26 +9950,7 @@ static void ppc_cpu_realize(DeviceState *dev, Error **errp)
     }
     init_ppc_proc(cpu);
 
-    if (pcc->insns_flags & PPC_FLOAT) {
-        gdb_register_coprocessor(cs, gdb_get_float_reg, gdb_set_float_reg,
-                                 33, "power-fpu.xml", 0);
-    }
-    if (pcc->insns_flags & PPC_ALTIVEC) {
-        gdb_register_coprocessor(cs, gdb_get_avr_reg, gdb_set_avr_reg,
-                                 34, "power-altivec.xml", 0);
-    }
-    if (pcc->insns_flags & PPC_SPE) {
-        gdb_register_coprocessor(cs, gdb_get_spe_reg, gdb_set_spe_reg,
-                                 34, "power-spe.xml", 0);
-    }
-    if (pcc->insns_flags2 & PPC2_VSX) {
-        gdb_register_coprocessor(cs, gdb_get_vsx_reg, gdb_set_vsx_reg,
-                                 32, "power-vsx.xml", 0);
-    }
-#ifndef CONFIG_USER_ONLY
-    gdb_register_coprocessor(cs, gdb_get_spr_reg, gdb_set_spr_reg,
-                             pcc->gdb_num_sprs, "power-spr.xml", 0);
-#endif
+    ppc_gdb_init(cs, pcc);
     qemu_init_vcpu(cs);
 
     pcc->parent_realize(dev, errp);
@@ -10835,15 +10592,6 @@ static bool ppc_pvr_match_default(PowerPCCPUClass *pcc, uint32_t pvr)
     return pcc->pvr == pvr;
 }
 
-static gchar *ppc_gdb_arch_name(CPUState *cs)
-{
-#if defined(TARGET_PPC64)
-    return g_strdup("powerpc:common64");
-#else
-    return g_strdup("powerpc:common");
-#endif
-}
-
 static void ppc_disas_set_info(CPUState *cs, disassemble_info *info)
 {
     PowerPCCPU *cpu = POWERPC_CPU(cs);
-- 
2.17.1



             reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-14 14:59 Bruno Larsen (billionai) [this message]
2021-04-14 20:09 ` Richard Henderson
2021-04-16  3:44   ` David Gibson
2021-04-26 15:50     ` Fabiano Rosas
2021-04-27  1:52       ` David Gibson

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    --in-reply-to=20210414145947.30155-1-bruno.larsen@eldorado.org.br \
    --to=bruno.larsen@eldorado.org.br \
    --cc=david@gibson.dropbear.id.au \
    --cc=farosas@linux.ibm.com \
    --cc=fernando.valle@eldorado.org.br \
    --cc=lucas.araujo@eldorado.org.br \
    --cc=luis.pires@eldorado.org.br \
    --cc=matheus.ferst@eldorado.org.br \
    --cc=qemu-devel@nongnu.org \
    --cc=qemu-ppc@nongnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

QEMU-Devel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/qemu-devel/0 qemu-devel/git/0.git
	git clone --mirror https://lore.kernel.org/qemu-devel/1 qemu-devel/git/1.git
	git clone --mirror https://lore.kernel.org/qemu-devel/2 qemu-devel/git/2.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 qemu-devel qemu-devel/ https://lore.kernel.org/qemu-devel \
		qemu-devel@nongnu.org
	public-inbox-index qemu-devel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.nongnu.qemu-devel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git