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[RFC PATCH 10/11] target/arm: explicitly encode regnum in our XML
From: |
Alex Bennée |
Subject: |
[RFC PATCH 10/11] target/arm: explicitly encode regnum in our XML |
Date: |
Fri, 15 Nov 2019 17:29:59 +0000 |
This is described as optional but I'm not convinced of the numbering
when multiple target fragments are sent.
Signed-off-by: Alex Bennée <address@hidden>
---
target/arm/cpu.h | 2 +-
target/arm/gdbstub.c | 16 ++++++++++------
target/arm/helper.c | 2 +-
3 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 97744496f2d..d5b6eeeb2f0 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -964,7 +964,7 @@ int arm_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf,
int reg);
/* Dynamically generates for gdb stub an XML description of the sysregs from
* the cp_regs hashtable. Returns the registered sysregs number.
*/
-int arm_gen_dynamic_sysreg_xml(CPUState *cpu);
+int arm_gen_dynamic_sysreg_xml(CPUState *cpu, int base_reg);
/* Returns the dynamically generated XML for the gdb stub.
* Returns a pointer to the XML contents for the specified XML file or NULL
diff --git a/target/arm/gdbstub.c b/target/arm/gdbstub.c
index 1f68ab98c3b..ca2abedd8cf 100644
--- a/target/arm/gdbstub.c
+++ b/target/arm/gdbstub.c
@@ -24,6 +24,7 @@
typedef struct RegisterSysregXmlParam {
CPUState *cs;
GString *s;
+ int n;
} RegisterSysregXmlParam;
/* Old gdb always expect FPA registers. Newer (xml-aware) gdb only expect
@@ -108,10 +109,11 @@ int arm_cpu_gdb_write_register(CPUState *cs, uint8_t
*mem_buf, int n)
static void arm_gen_one_xml_sysreg_tag(GString *s, DynamicGDBXMLInfo *dyn_xml,
ARMCPRegInfo *ri, uint32_t ri_key,
- int bitsize)
+ int bitsize, int regnum)
{
g_string_append_printf(s, "<reg name=\"%s\"", ri->name);
g_string_append_printf(s, " bitsize=\"%d\"", bitsize);
+ g_string_append_printf(s, " regnum=\"%d\"", regnum);
g_string_append_printf(s, " group=\"cp_regs\"/>");
dyn_xml->data.cpregs.keys[dyn_xml->num] = ri_key;
dyn_xml->num++;
@@ -124,6 +126,7 @@ static void arm_register_sysreg_for_xml(gpointer key,
gpointer value,
ARMCPRegInfo *ri = value;
RegisterSysregXmlParam *param = (RegisterSysregXmlParam *)p;
GString *s = param->s;
+ int n = param->n;
ARMCPU *cpu = ARM_CPU(param->cs);
CPUARMState *env = &cpu->env;
DynamicGDBXMLInfo *dyn_xml = &cpu->dyn_sysreg_xml;
@@ -131,7 +134,7 @@ static void arm_register_sysreg_for_xml(gpointer key,
gpointer value,
if (!(ri->type & (ARM_CP_NO_RAW | ARM_CP_NO_GDB))) {
if (arm_feature(env, ARM_FEATURE_AARCH64)) {
if (ri->state == ARM_CP_STATE_AA64) {
- arm_gen_one_xml_sysreg_tag(s , dyn_xml, ri, ri_key, 64);
+ arm_gen_one_xml_sysreg_tag(s , dyn_xml, ri, ri_key, 64, n);
}
} else {
if (ri->state == ARM_CP_STATE_AA32) {
@@ -140,20 +143,21 @@ static void arm_register_sysreg_for_xml(gpointer key,
gpointer value,
return;
}
if (ri->type & ARM_CP_64BIT) {
- arm_gen_one_xml_sysreg_tag(s , dyn_xml, ri, ri_key, 64);
+ arm_gen_one_xml_sysreg_tag(s , dyn_xml, ri, ri_key, 64, n);
} else {
- arm_gen_one_xml_sysreg_tag(s , dyn_xml, ri, ri_key, 32);
+ arm_gen_one_xml_sysreg_tag(s , dyn_xml, ri, ri_key, 32, n);
}
}
}
}
+ param->n++;
}
-int arm_gen_dynamic_sysreg_xml(CPUState *cs)
+int arm_gen_dynamic_sysreg_xml(CPUState *cs, int base_reg)
{
ARMCPU *cpu = ARM_CPU(cs);
GString *s = g_string_new(NULL);
- RegisterSysregXmlParam param = {cs, s};
+ RegisterSysregXmlParam param = {cs, s, base_reg};
cpu->dyn_sysreg_xml.num = 0;
cpu->dyn_sysreg_xml.data.cpregs.keys = g_new(uint32_t,
g_hash_table_size(cpu->cp_regs));
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 3234e6d08df..421e27e0f32 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -6911,7 +6911,7 @@ void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu)
19, "arm-vfp.xml", 0);
}
gdb_register_coprocessor(cs, arm_gdb_get_sysreg, arm_gdb_set_sysreg,
- arm_gen_dynamic_sysreg_xml(cs),
+ arm_gen_dynamic_sysreg_xml(cs, cs->gdb_num_regs),
"system-registers.xml", 0);
}
--
2.20.1
- [RFC PATCH 10/11] target/arm: explicitly encode regnum in our XML,
Alex Bennée <=