[PATCH v2 20/50] target/ppc: Remove MonitorDef register entries available via gdbstub

Philippe Mathieu-Daudé posted 50 patches 1 month ago
Maintainers: Laurent Vivier <laurent@vivier.eu>, Pierrick Bouvier <pierrick.bouvier@linaro.org>, Michael Rolnik <mrolnik@gmail.com>, "Alex Bennée" <alex.bennee@linaro.org>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Yanan Wang <wangyanan55@huawei.com>, Zhao Liu <zhao1.liu@intel.com>, "Dr. David Alan Gilbert" <dave@treblig.org>, Richard Henderson <richard.henderson@linaro.org>, Brian Cain <brian.cain@oss.qualcomm.com>, Paolo Bonzini <pbonzini@redhat.com>, Song Gao <gaosong@loongson.cn>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Aurelien Jarno <aurelien@aurel32.net>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <arikalo@gmail.com>, Stafford Horne <shorne@gmail.com>, Nicholas Piggin <npiggin@gmail.com>, Chinmay Rath <rathc@linux.ibm.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Yoshinori Sato <yoshinori.sato@nifty.com>, Ilya Leoshkevich <iii@linux.ibm.com>, David Hildenbrand <david@kernel.org>, Thomas Huth <thuth@redhat.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>, Bastian Koppelmann <kbastian@rumtueddeln.de>
[PATCH v2 20/50] target/ppc: Remove MonitorDef register entries available via gdbstub
Posted by Philippe Mathieu-Daudé 1 month ago
All these registers are already provided by via gdbstub parsed XML
and handler by the gdb_get_register() helper in the monitor/hmp.c
file. Remove as now unreachable code.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/ppc/ppc-qmp-cmds.c | 132 --------------------------------------
 1 file changed, 132 deletions(-)

diff --git a/target/ppc/ppc-qmp-cmds.c b/target/ppc/ppc-qmp-cmds.c
index 7022564604f..66c3bcb2c38 100644
--- a/target/ppc/ppc-qmp-cmds.c
+++ b/target/ppc/ppc-qmp-cmds.c
@@ -33,54 +33,6 @@
 #include "cpu-models.h"
 #include "cpu-qom.h"
 
-static target_long monitor_get_ccr(Monitor *mon, const struct MonitorDef *md,
-                                   int val)
-{
-    CPUArchState *env = mon_get_cpu_env(mon);
-    unsigned int u;
-
-    u = ppc_get_cr(env);
-
-    return u;
-}
-
-static target_long monitor_get_xer(Monitor *mon, const struct MonitorDef *md,
-                                   int val)
-{
-    CPUArchState *env = mon_get_cpu_env(mon);
-    return cpu_read_xer(env);
-}
-
-static target_long monitor_get_decr(Monitor *mon, const struct MonitorDef *md,
-                                    int val)
-{
-    CPUArchState *env = mon_get_cpu_env(mon);
-    if (!env->tb_env) {
-        return 0;
-    }
-    return cpu_ppc_load_decr(env);
-}
-
-static target_long monitor_get_tbu(Monitor *mon, const struct MonitorDef *md,
-                                   int val)
-{
-    CPUArchState *env = mon_get_cpu_env(mon);
-    if (!env->tb_env) {
-        return 0;
-    }
-    return cpu_ppc_load_tbu(env);
-}
-
-static target_long monitor_get_tbl(Monitor *mon, const struct MonitorDef *md,
-                                   int val)
-{
-    CPUArchState *env = mon_get_cpu_env(mon);
-    if (!env->tb_env) {
-        return 0;
-    }
-    return cpu_ppc_load_tbl(env);
-}
-
 void hmp_info_tlb(Monitor *mon, const QDict *qdict)
 {
     CPUArchState *env1 = mon_get_cpu_env(mon);
@@ -92,90 +44,6 @@ void hmp_info_tlb(Monitor *mon, const QDict *qdict)
     dump_mmu(env1);
 }
 
-const MonitorDef monitor_defs[] = {
-    { "fpscr", offsetof(CPUPPCState, fpscr) },
-    /* Next instruction pointer */
-    { "nip|pc", offsetof(CPUPPCState, nip) },
-    { "lr", offsetof(CPUPPCState, lr) },
-    { "ctr", offsetof(CPUPPCState, ctr) },
-    { "decr", 0, &monitor_get_decr, },
-    { "ccr|cr", 0, &monitor_get_ccr, },
-    /* Machine state register */
-    { "xer", 0, &monitor_get_xer },
-    { "msr", offsetof(CPUPPCState, msr) },
-    { "tbu", 0, &monitor_get_tbu, },
-#if defined(TARGET_PPC64)
-    { "tb", 0, &monitor_get_tbl, },
-#else
-    { "tbl", 0, &monitor_get_tbl, },
-#endif
-    { NULL },
-};
-
-const MonitorDef *target_monitor_defs(void)
-{
-    return monitor_defs;
-}
-
-static int ppc_cpu_get_reg_num(const char *numstr, int maxnum, int *pregnum)
-{
-    int regnum;
-    char *endptr = NULL;
-
-    if (!*numstr) {
-        return false;
-    }
-
-    regnum = strtoul(numstr, &endptr, 10);
-    if (*endptr || (regnum >= maxnum)) {
-        return false;
-    }
-    *pregnum = regnum;
-
-    return true;
-}
-
-int target_get_monitor_def(CPUState *cs, const char *name, uint64_t *pval)
-{
-    int i, regnum;
-    CPUPPCState *env = cpu_env(cs);
-
-    /* General purpose registers */
-    if ((qemu_tolower(name[0]) == 'r') &&
-        ppc_cpu_get_reg_num(name + 1, ARRAY_SIZE(env->gpr), &regnum)) {
-        *pval = env->gpr[regnum];
-        return 0;
-    }
-
-    /* Floating point registers */
-    if ((qemu_tolower(name[0]) == 'f') &&
-        ppc_cpu_get_reg_num(name + 1, 32, &regnum)) {
-        *pval = *cpu_fpr_ptr(env, regnum);
-        return 0;
-    }
-
-    /* Special purpose registers */
-    for (i = 0; i < ARRAY_SIZE(env->spr_cb); ++i) {
-        ppc_spr_t *spr = &env->spr_cb[i];
-
-        if (spr->name && (strcasecmp(name, spr->name) == 0)) {
-            *pval = env->spr[i];
-            return 0;
-        }
-    }
-
-    /* Segment registers */
-#if !defined(CONFIG_USER_ONLY)
-    if ((strncasecmp(name, "sr", 2) == 0) &&
-        ppc_cpu_get_reg_num(name + 2, ARRAY_SIZE(env->sr), &regnum)) {
-        *pval = env->sr[regnum];
-        return 0;
-    }
-#endif
-
-    return -EINVAL;
-}
-
 CpuModelExpansionInfo *
 qmp_query_cpu_model_expansion(CpuModelExpansionType type,
                               CpuModelInfo *model,
-- 
2.52.0


Re: [PATCH v2 20/50] target/ppc: Remove MonitorDef register entries available via gdbstub
Posted by Pierrick Bouvier 1 month ago
On 2/19/26 11:19 AM, Philippe Mathieu-Daudé wrote:
> All these registers are already provided by via gdbstub parsed XML
> and handler by the gdb_get_register() helper in the monitor/hmp.c
> file. Remove as now unreachable code.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>   target/ppc/ppc-qmp-cmds.c | 132 --------------------------------------
>   1 file changed, 132 deletions(-)
> 

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>