--- /dev/null
+<?xml version="1.0"?>
+<!-- Copyright (C) 2021 Linaro Ltd.
+
+ Copying and distribution of this file, with or without modification,
+ are permitted in any medium without royalty provided the copyright
+ notice and this notice are preserved.
+
+ These are A/R profile VFP system registers. Debugger users probably
+ don't really care about these, but because we used to (incorrectly)
+ provide them to gdb in the org.gnu.gdb.arm.vfp XML we continue
+ to do so via this separate XML.
+ -->
+<!DOCTYPE feature SYSTEM "gdb-target.dtd">
+<feature name="org.qemu.gdb.arm.vfp-sysregs">
+ <reg name="fpsid" bitsize="32" type="int" group="float"/>
+ <reg name="fpexc" bitsize="32" type="int" group="float"/>
+</feature>
}
switch (reg - nregs) {
case 0:
- return gdb_get_reg32(buf, env->vfp.xregs[ARM_VFP_FPSID]);
- case 1:
return gdb_get_reg32(buf, vfp_get_fpscr(env));
- case 2:
- return gdb_get_reg32(buf, env->vfp.xregs[ARM_VFP_FPEXC]);
}
return 0;
}
}
switch (reg - nregs) {
case 0:
- env->vfp.xregs[ARM_VFP_FPSID] = ldl_p(buf);
+ vfp_set_fpscr(env, ldl_p(buf));
return 4;
+ }
+ return 0;
+}
+
+static int vfp_gdb_get_sysreg(CPUARMState *env, GByteArray *buf, int reg)
+{
+ switch (reg) {
+ case 0:
+ return gdb_get_reg32(buf, env->vfp.xregs[ARM_VFP_FPSID]);
case 1:
- vfp_set_fpscr(env, ldl_p(buf));
+ return gdb_get_reg32(buf, env->vfp.xregs[ARM_VFP_FPEXC]);
+ }
+ return 0;
+}
+
+static int vfp_gdb_set_sysreg(CPUARMState *env, uint8_t *buf, int reg)
+{
+ switch (reg) {
+ case 0:
+ env->vfp.xregs[ARM_VFP_FPSID] = ldl_p(buf);
return 4;
- case 2:
+ case 1:
env->vfp.xregs[ARM_VFP_FPEXC] = ldl_p(buf) & (1 << 30);
return 4;
}
34, "aarch64-fpu.xml", 0);
}
#endif
- } else if (arm_feature(env, ARM_FEATURE_NEON)) {
- gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg,
- 51, "arm-neon.xml", 0);
- } else if (cpu_isar_feature(aa32_simd_r32, cpu)) {
- gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg,
- 35, "arm-vfp3.xml", 0);
- } else if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
- gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg,
- 19, "arm-vfp.xml", 0);
+ } else {
+ if (arm_feature(env, ARM_FEATURE_NEON)) {
+ gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg,
+ 49, "arm-neon.xml", 0);
+ } else if (cpu_isar_feature(aa32_simd_r32, cpu)) {
+ gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg,
+ 33, "arm-vfp3.xml", 0);
+ } else if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
+ gdb_register_coprocessor(cs, vfp_gdb_get_reg, vfp_gdb_set_reg,
+ 17, "arm-vfp.xml", 0);
+ }
+ if (!arm_feature(env, ARM_FEATURE_M)) {
+ /*
+ * A and R profile have FP sysregs FPEXC and FPSID that we
+ * expose to gdb.
+ */
+ gdb_register_coprocessor(cs, vfp_gdb_get_sysreg, vfp_gdb_set_sysreg,
+ 2, "arm-vfp-sysregs.xml", 0);
+ }
}
gdb_register_coprocessor(cs, arm_gdb_get_sysreg, arm_gdb_set_sysreg,
arm_gen_dynamic_sysreg_xml(cs, cs->gdb_num_regs),
projects / qemu.git / commitdiff