| Message ID | 20240621065406.864232-1-gaosong@loongson.cn |
|---|---|
| State | New |
| Headers | show |
| Series | target/loongarch/gdbstub: Add vector registers support | expand |
Ping ! 在 2024/6/21 下午2:54, Song Gao 写道: > GDB already support LoongArch vector extension[1], QEMU gdb adds > LoongArch vector registers support, so that users can use 'info all-registers' > to get all vector registers values. > > [1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=1e9569f383a3d5a88ee07d0c2401bd95613c222e > > Signed-off-by: Song Gao <gaosong@loongson.cn> > --- > based-on: > https://patchew.org/QEMU/20240607035016.2975799-1-maobibo@loongson.cn/ > > configs/targets/loongarch64-linux-user.mak | 2 +- > configs/targets/loongarch64-softmmu.mak | 2 +- > gdb-xml/loongarch-lasx.xml | 60 +++++++++++++++++++ > gdb-xml/loongarch-lsx.xml | 59 ++++++++++++++++++ > target/loongarch/gdbstub.c | 70 +++++++++++++++++++++- > 5 files changed, 189 insertions(+), 4 deletions(-) > create mode 100644 gdb-xml/loongarch-lasx.xml > create mode 100644 gdb-xml/loongarch-lsx.xml > > diff --git a/configs/targets/loongarch64-linux-user.mak b/configs/targets/loongarch64-linux-user.mak > index d878e5a113..ea9b7e839a 100644 > --- a/configs/targets/loongarch64-linux-user.mak > +++ b/configs/targets/loongarch64-linux-user.mak > @@ -1,4 +1,4 @@ > # Default configuration for loongarch64-linux-user > TARGET_ARCH=loongarch64 > TARGET_BASE_ARCH=loongarch > -TARGET_XML_FILES=gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml > +TARGET_XML_FILES=gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml gdb-xml/loongarch-lsx.xml gdb-xml/loongarch-lasx.xml > diff --git a/configs/targets/loongarch64-softmmu.mak b/configs/targets/loongarch64-softmmu.mak > index 65b65e0c34..ce19ab6a16 100644 > --- a/configs/targets/loongarch64-softmmu.mak > +++ b/configs/targets/loongarch64-softmmu.mak > @@ -2,6 +2,6 @@ TARGET_ARCH=loongarch64 > TARGET_BASE_ARCH=loongarch > TARGET_KVM_HAVE_GUEST_DEBUG=y > TARGET_SUPPORTS_MTTCG=y > -TARGET_XML_FILES= gdb-xml/loongarch-base32.xml gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml > +TARGET_XML_FILES= gdb-xml/loongarch-base32.xml gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml gdb-xml/loongarch-lsx.xml gdb-xml/loongarch-lasx.xml > # all boards require libfdt > TARGET_NEED_FDT=y > diff --git a/gdb-xml/loongarch-lasx.xml b/gdb-xml/loongarch-lasx.xml > new file mode 100644 > index 0000000000..753b982c65 > --- /dev/null > +++ b/gdb-xml/loongarch-lasx.xml > @@ -0,0 +1,60 @@ > +<?xml version="1.0"?> > +<!-- Copyright (C) 2022-2024 Free Software Foundation, Inc. > + > + 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. --> > + > +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> > +<feature name="org.gnu.gdb.loongarch.lasx"> > + <vector id="v8f32" type="ieee_single" count="8"/> > + <vector id="v4f64" type="ieee_double" count="4"/> > + <vector id="v32i8" type="int8" count="32"/> > + <vector id="v16i16" type="int16" count="16"/> > + <vector id="v8i32" type="int32" count="8"/> > + <vector id="v4i64" type="int64" count="4"/> > + <vector id="v2ui128" type="uint128" count="2"/> > + > + <union id="lasxv"> > + <field name="v8_float" type="v8f32"/> > + <field name="v4_double" type="v4f64"/> > + <field name="v32_int8" type="v32i8"/> > + <field name="v16_int16" type="v16i16"/> > + <field name="v8_int32" type="v8i32"/> > + <field name="v4_int64" type="v4i64"/> > + <field name="v2_uint128" type="v2ui128"/> > + </union> > + > + <reg name="xr0" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr1" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr2" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr3" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr4" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr5" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr6" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr7" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr8" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr9" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr10" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr11" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr12" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr13" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr14" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr15" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr16" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr17" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr18" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr19" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr20" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr21" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr22" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr23" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr24" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr25" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr26" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr27" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr28" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr29" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr30" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr31" bitsize="256" type="lasxv" group="lasx"/> > +</feature> > diff --git a/gdb-xml/loongarch-lsx.xml b/gdb-xml/loongarch-lsx.xml > new file mode 100644 > index 0000000000..51af1c6fd5 > --- /dev/null > +++ b/gdb-xml/loongarch-lsx.xml > @@ -0,0 +1,59 @@ > +<?xml version="1.0"?> > +<!-- Copyright (C) 2022-2024 Free Software Foundation, Inc. > + > + 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. --> > + > +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> > +<feature name="org.gnu.gdb.loongarch.lsx"> > + <vector id="v4f32" type="ieee_single" count="4"/> > + <vector id="v2f64" type="ieee_double" count="2"/> > + <vector id="v16i8" type="int8" count="16"/> > + <vector id="v8i16" type="int16" count="8"/> > + <vector id="v4i32" type="int32" count="4"/> > + <vector id="v2i64" type="int64" count="2"/> > + > + <union id="lsxv"> > + <field name="v4_float" type="v4f32"/> > + <field name="v2_double" type="v2f64"/> > + <field name="v16_int8" type="v16i8"/> > + <field name="v8_int16" type="v8i16"/> > + <field name="v4_int32" type="v4i32"/> > + <field name="v2_int64" type="v2i64"/> > + <field name="uint128" type="uint128"/> > + </union> > + > + <reg name="vr0" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr1" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr2" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr3" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr4" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr5" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr6" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr7" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr8" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr9" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr10" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr11" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr12" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr13" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr14" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr15" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr16" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr17" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr18" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr19" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr20" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr21" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr22" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr23" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr26" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr25" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr26" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr27" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr28" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr29" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr30" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr31" bitsize="128" type="lsxv" group="lsx"/> > +</feature> > diff --git a/target/loongarch/gdbstub.c b/target/loongarch/gdbstub.c > index a0e1439bd0..c9e2ddd943 100644 > --- a/target/loongarch/gdbstub.c > +++ b/target/loongarch/gdbstub.c > @@ -116,8 +116,74 @@ static int loongarch_gdb_set_fpu(CPUState *cs, uint8_t *mem_buf, int n) > return length; > } > > +static int loongarch_gdb_get_vec(CPUState *cs, GByteArray *mem_buf, int n, int vl) > +{ > + LoongArchCPU *cpu = LOONGARCH_CPU(cs); > + CPULoongArchState *env = &cpu->env; > + int i, length = 0; > + > + if (0 <= n && n < 32) { > + for (i = 0; i < vl / 64; i++) { > + length += gdb_get_reg64(mem_buf, env->fpr[n].vreg.D(i)); > + } > + } > + > + return length; > +} > + > +static int loongarch_gdb_set_vec(CPUState *cs, uint8_t *mem_buf, int n, int vl) > +{ > + LoongArchCPU *cpu = LOONGARCH_CPU(cs); > + CPULoongArchState *env = &cpu->env; > + int i, length = 0; > + > + if (0 <= n && n < 32) { > + for (i = 0; i < vl / 64; i++) { > + env->fpr[n].vreg.D(i) = ldq_le_p(mem_buf + 8 * i); > + length += 8; > + } > + } > + > + return length; > +} > + > +static int loongarch_gdb_get_lsx(CPUState *cs, GByteArray *mem_buf, int n) > +{ > + return loongarch_gdb_get_vec(cs, mem_buf, n, LSX_LEN); > +} > + > +static int loongarch_gdb_set_lsx(CPUState *cs, uint8_t *mem_buf, int n) > +{ > + return loongarch_gdb_set_vec(cs, mem_buf, n, LSX_LEN); > +} > + > +static int loongarch_gdb_get_lasx(CPUState *cs, GByteArray *mem_buf, int n) > +{ > + return loongarch_gdb_get_vec(cs, mem_buf, n, LASX_LEN); > +} > + > +static int loongarch_gdb_set_lasx(CPUState *cs, uint8_t *mem_buf, int n) > +{ > + return loongarch_gdb_set_vec(cs, mem_buf, n, LASX_LEN); > +} > + > void loongarch_cpu_register_gdb_regs_for_features(CPUState *cs) > { > - gdb_register_coprocessor(cs, loongarch_gdb_get_fpu, loongarch_gdb_set_fpu, > - gdb_find_static_feature("loongarch-fpu.xml"), 0); > + LoongArchCPU *cpu = LOONGARCH_CPU(cs); > + CPULoongArchState *env = &cpu->env; > + > + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, FP)) { > + gdb_register_coprocessor(cs, loongarch_gdb_get_fpu, loongarch_gdb_set_fpu, > + gdb_find_static_feature("loongarch-fpu.xml"), 0); > + } > + > + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LSX)) { > + gdb_register_coprocessor(cs, loongarch_gdb_get_lsx, loongarch_gdb_set_lsx, > + gdb_find_static_feature("loongarch-lsx.xml"), 0); > + } > + > + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LASX)) { > + gdb_register_coprocessor(cs, loongarch_gdb_get_lasx, loongarch_gdb_set_lasx, > + gdb_find_static_feature("loongarch-lasx.xml"), 0); > + } > }
On 2024/6/21 下午2:54, Song Gao wrote: > GDB already support LoongArch vector extension[1], QEMU gdb adds > LoongArch vector registers support, so that users can use 'info all-registers' > to get all vector registers values. > > [1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=1e9569f383a3d5a88ee07d0c2401bd95613c222e > > Signed-off-by: Song Gao <gaosong@loongson.cn> > --- > based-on: > https://patchew.org/QEMU/20240607035016.2975799-1-maobibo@loongson.cn/ > > configs/targets/loongarch64-linux-user.mak | 2 +- > configs/targets/loongarch64-softmmu.mak | 2 +- > gdb-xml/loongarch-lasx.xml | 60 +++++++++++++++++++ > gdb-xml/loongarch-lsx.xml | 59 ++++++++++++++++++ > target/loongarch/gdbstub.c | 70 +++++++++++++++++++++- > 5 files changed, 189 insertions(+), 4 deletions(-) > create mode 100644 gdb-xml/loongarch-lasx.xml > create mode 100644 gdb-xml/loongarch-lsx.xml > > diff --git a/configs/targets/loongarch64-linux-user.mak b/configs/targets/loongarch64-linux-user.mak > index d878e5a113..ea9b7e839a 100644 > --- a/configs/targets/loongarch64-linux-user.mak > +++ b/configs/targets/loongarch64-linux-user.mak > @@ -1,4 +1,4 @@ > # Default configuration for loongarch64-linux-user > TARGET_ARCH=loongarch64 > TARGET_BASE_ARCH=loongarch > -TARGET_XML_FILES=gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml > +TARGET_XML_FILES=gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml gdb-xml/loongarch-lsx.xml gdb-xml/loongarch-lasx.xml > diff --git a/configs/targets/loongarch64-softmmu.mak b/configs/targets/loongarch64-softmmu.mak > index 65b65e0c34..ce19ab6a16 100644 > --- a/configs/targets/loongarch64-softmmu.mak > +++ b/configs/targets/loongarch64-softmmu.mak > @@ -2,6 +2,6 @@ TARGET_ARCH=loongarch64 > TARGET_BASE_ARCH=loongarch > TARGET_KVM_HAVE_GUEST_DEBUG=y > TARGET_SUPPORTS_MTTCG=y > -TARGET_XML_FILES= gdb-xml/loongarch-base32.xml gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml > +TARGET_XML_FILES= gdb-xml/loongarch-base32.xml gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml gdb-xml/loongarch-lsx.xml gdb-xml/loongarch-lasx.xml > # all boards require libfdt > TARGET_NEED_FDT=y > diff --git a/gdb-xml/loongarch-lasx.xml b/gdb-xml/loongarch-lasx.xml > new file mode 100644 > index 0000000000..753b982c65 > --- /dev/null > +++ b/gdb-xml/loongarch-lasx.xml > @@ -0,0 +1,60 @@ > +<?xml version="1.0"?> > +<!-- Copyright (C) 2022-2024 Free Software Foundation, Inc. > + > + 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. --> > + > +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> > +<feature name="org.gnu.gdb.loongarch.lasx"> > + <vector id="v8f32" type="ieee_single" count="8"/> > + <vector id="v4f64" type="ieee_double" count="4"/> > + <vector id="v32i8" type="int8" count="32"/> > + <vector id="v16i16" type="int16" count="16"/> > + <vector id="v8i32" type="int32" count="8"/> > + <vector id="v4i64" type="int64" count="4"/> > + <vector id="v2ui128" type="uint128" count="2"/> > + > + <union id="lasxv"> > + <field name="v8_float" type="v8f32"/> > + <field name="v4_double" type="v4f64"/> > + <field name="v32_int8" type="v32i8"/> > + <field name="v16_int16" type="v16i16"/> > + <field name="v8_int32" type="v8i32"/> > + <field name="v4_int64" type="v4i64"/> > + <field name="v2_uint128" type="v2ui128"/> > + </union> > + > + <reg name="xr0" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr1" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr2" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr3" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr4" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr5" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr6" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr7" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr8" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr9" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr10" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr11" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr12" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr13" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr14" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr15" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr16" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr17" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr18" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr19" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr20" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr21" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr22" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr23" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr24" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr25" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr26" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr27" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr28" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr29" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr30" bitsize="256" type="lasxv" group="lasx"/> > + <reg name="xr31" bitsize="256" type="lasxv" group="lasx"/> > +</feature> > diff --git a/gdb-xml/loongarch-lsx.xml b/gdb-xml/loongarch-lsx.xml > new file mode 100644 > index 0000000000..51af1c6fd5 > --- /dev/null > +++ b/gdb-xml/loongarch-lsx.xml > @@ -0,0 +1,59 @@ > +<?xml version="1.0"?> > +<!-- Copyright (C) 2022-2024 Free Software Foundation, Inc. > + > + 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. --> > + > +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> > +<feature name="org.gnu.gdb.loongarch.lsx"> > + <vector id="v4f32" type="ieee_single" count="4"/> > + <vector id="v2f64" type="ieee_double" count="2"/> > + <vector id="v16i8" type="int8" count="16"/> > + <vector id="v8i16" type="int16" count="8"/> > + <vector id="v4i32" type="int32" count="4"/> > + <vector id="v2i64" type="int64" count="2"/> > + > + <union id="lsxv"> > + <field name="v4_float" type="v4f32"/> > + <field name="v2_double" type="v2f64"/> > + <field name="v16_int8" type="v16i8"/> > + <field name="v8_int16" type="v8i16"/> > + <field name="v4_int32" type="v4i32"/> > + <field name="v2_int64" type="v2i64"/> > + <field name="uint128" type="uint128"/> > + </union> > + > + <reg name="vr0" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr1" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr2" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr3" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr4" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr5" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr6" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr7" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr8" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr9" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr10" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr11" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr12" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr13" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr14" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr15" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr16" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr17" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr18" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr19" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr20" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr21" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr22" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr23" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr26" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr25" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr26" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr27" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr28" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr29" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr30" bitsize="128" type="lsxv" group="lsx"/> > + <reg name="vr31" bitsize="128" type="lsxv" group="lsx"/> > +</feature> > diff --git a/target/loongarch/gdbstub.c b/target/loongarch/gdbstub.c > index a0e1439bd0..c9e2ddd943 100644 > --- a/target/loongarch/gdbstub.c > +++ b/target/loongarch/gdbstub.c > @@ -116,8 +116,74 @@ static int loongarch_gdb_set_fpu(CPUState *cs, uint8_t *mem_buf, int n) > return length; > } > > +static int loongarch_gdb_get_vec(CPUState *cs, GByteArray *mem_buf, int n, int vl) > +{ > + LoongArchCPU *cpu = LOONGARCH_CPU(cs); > + CPULoongArchState *env = &cpu->env; > + int i, length = 0; > + > + if (0 <= n && n < 32) { > + for (i = 0; i < vl / 64; i++) { > + length += gdb_get_reg64(mem_buf, env->fpr[n].vreg.D(i)); > + } There is tab line wrapper issue. > + } > + > + return length; > +} > + > +static int loongarch_gdb_set_vec(CPUState *cs, uint8_t *mem_buf, int n, int vl) > +{ > + LoongArchCPU *cpu = LOONGARCH_CPU(cs); > + CPULoongArchState *env = &cpu->env; > + int i, length = 0; > + > + if (0 <= n && n < 32) { > + for (i = 0; i < vl / 64; i++) { > + env->fpr[n].vreg.D(i) = ldq_le_p(mem_buf + 8 * i); > + length += 8; > + } > + } > + > + return length; > +} > + > +static int loongarch_gdb_get_lsx(CPUState *cs, GByteArray *mem_buf, int n) > +{ > + return loongarch_gdb_get_vec(cs, mem_buf, n, LSX_LEN); > +} > + > +static int loongarch_gdb_set_lsx(CPUState *cs, uint8_t *mem_buf, int n) > +{ > + return loongarch_gdb_set_vec(cs, mem_buf, n, LSX_LEN); > +} > + > +static int loongarch_gdb_get_lasx(CPUState *cs, GByteArray *mem_buf, int n) > +{ > + return loongarch_gdb_get_vec(cs, mem_buf, n, LASX_LEN); > +} > + > +static int loongarch_gdb_set_lasx(CPUState *cs, uint8_t *mem_buf, int n) > +{ > + return loongarch_gdb_set_vec(cs, mem_buf, n, LASX_LEN); > +} > + > void loongarch_cpu_register_gdb_regs_for_features(CPUState *cs) > { > - gdb_register_coprocessor(cs, loongarch_gdb_get_fpu, loongarch_gdb_set_fpu, > - gdb_find_static_feature("loongarch-fpu.xml"), 0); > + LoongArchCPU *cpu = LOONGARCH_CPU(cs); > + CPULoongArchState *env = &cpu->env; > + > + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, FP)) { > + gdb_register_coprocessor(cs, loongarch_gdb_get_fpu, loongarch_gdb_set_fpu, > + gdb_find_static_feature("loongarch-fpu.xml"), 0); > + } > + > + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LSX)) { > + gdb_register_coprocessor(cs, loongarch_gdb_get_lsx, loongarch_gdb_set_lsx, > + gdb_find_static_feature("loongarch-lsx.xml"), 0); > + } > + > + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LASX)) { > + gdb_register_coprocessor(cs, loongarch_gdb_get_lasx, loongarch_gdb_set_lasx, > + gdb_find_static_feature("loongarch-lasx.xml"), 0); > + } Can you list the actual output of gdb with the three conditions such as LASX/LSX/FP enabled? I doubt the code should be: if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LASX)) { ... } else if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LSX)) { ... } else if (FIELD_EX32(env->cpucfg[2], CPUCFG2, FP)) { ... } Regards Bibo Mao > } >
在 2024/7/10 下午5:37, maobibo 写道: > > > On 2024/6/21 下午2:54, Song Gao wrote: >> GDB already support LoongArch vector extension[1], QEMU gdb adds >> LoongArch vector registers support, so that users can use 'info >> all-registers' >> to get all vector registers values. >> >> [1]: >> https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=1e9569f383a3d5a88ee07d0c2401bd95613c222e >> >> Signed-off-by: Song Gao <gaosong@loongson.cn> >> --- >> based-on: >> https://patchew.org/QEMU/20240607035016.2975799-1-maobibo@loongson.cn/ >> >> configs/targets/loongarch64-linux-user.mak | 2 +- >> configs/targets/loongarch64-softmmu.mak | 2 +- >> gdb-xml/loongarch-lasx.xml | 60 +++++++++++++++++++ >> gdb-xml/loongarch-lsx.xml | 59 ++++++++++++++++++ >> target/loongarch/gdbstub.c | 70 +++++++++++++++++++++- >> 5 files changed, 189 insertions(+), 4 deletions(-) >> create mode 100644 gdb-xml/loongarch-lasx.xml >> create mode 100644 gdb-xml/loongarch-lsx.xml >> >> diff --git a/configs/targets/loongarch64-linux-user.mak >> b/configs/targets/loongarch64-linux-user.mak >> index d878e5a113..ea9b7e839a 100644 >> --- a/configs/targets/loongarch64-linux-user.mak >> +++ b/configs/targets/loongarch64-linux-user.mak >> @@ -1,4 +1,4 @@ >> # Default configuration for loongarch64-linux-user >> TARGET_ARCH=loongarch64 >> TARGET_BASE_ARCH=loongarch >> -TARGET_XML_FILES=gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml >> +TARGET_XML_FILES=gdb-xml/loongarch-base64.xml >> gdb-xml/loongarch-fpu.xml gdb-xml/loongarch-lsx.xml >> gdb-xml/loongarch-lasx.xml >> diff --git a/configs/targets/loongarch64-softmmu.mak >> b/configs/targets/loongarch64-softmmu.mak >> index 65b65e0c34..ce19ab6a16 100644 >> --- a/configs/targets/loongarch64-softmmu.mak >> +++ b/configs/targets/loongarch64-softmmu.mak >> @@ -2,6 +2,6 @@ TARGET_ARCH=loongarch64 >> TARGET_BASE_ARCH=loongarch >> TARGET_KVM_HAVE_GUEST_DEBUG=y >> TARGET_SUPPORTS_MTTCG=y >> -TARGET_XML_FILES= gdb-xml/loongarch-base32.xml >> gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml >> +TARGET_XML_FILES= gdb-xml/loongarch-base32.xml >> gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml >> gdb-xml/loongarch-lsx.xml gdb-xml/loongarch-lasx.xml >> # all boards require libfdt >> TARGET_NEED_FDT=y >> diff --git a/gdb-xml/loongarch-lasx.xml b/gdb-xml/loongarch-lasx.xml >> new file mode 100644 >> index 0000000000..753b982c65 >> --- /dev/null >> +++ b/gdb-xml/loongarch-lasx.xml >> @@ -0,0 +1,60 @@ >> +<?xml version="1.0"?> >> +<!-- Copyright (C) 2022-2024 Free Software Foundation, Inc. >> + >> + 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. --> >> + >> +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> >> +<feature name="org.gnu.gdb.loongarch.lasx"> >> + <vector id="v8f32" type="ieee_single" count="8"/> >> + <vector id="v4f64" type="ieee_double" count="4"/> >> + <vector id="v32i8" type="int8" count="32"/> >> + <vector id="v16i16" type="int16" count="16"/> >> + <vector id="v8i32" type="int32" count="8"/> >> + <vector id="v4i64" type="int64" count="4"/> >> + <vector id="v2ui128" type="uint128" count="2"/> >> + >> + <union id="lasxv"> >> + <field name="v8_float" type="v8f32"/> >> + <field name="v4_double" type="v4f64"/> >> + <field name="v32_int8" type="v32i8"/> >> + <field name="v16_int16" type="v16i16"/> >> + <field name="v8_int32" type="v8i32"/> >> + <field name="v4_int64" type="v4i64"/> >> + <field name="v2_uint128" type="v2ui128"/> >> + </union> >> + >> + <reg name="xr0" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr1" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr2" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr3" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr4" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr5" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr6" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr7" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr8" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr9" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr10" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr11" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr12" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr13" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr14" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr15" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr16" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr17" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr18" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr19" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr20" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr21" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr22" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr23" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr24" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr25" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr26" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr27" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr28" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr29" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr30" bitsize="256" type="lasxv" group="lasx"/> >> + <reg name="xr31" bitsize="256" type="lasxv" group="lasx"/> >> +</feature> >> diff --git a/gdb-xml/loongarch-lsx.xml b/gdb-xml/loongarch-lsx.xml >> new file mode 100644 >> index 0000000000..51af1c6fd5 >> --- /dev/null >> +++ b/gdb-xml/loongarch-lsx.xml >> @@ -0,0 +1,59 @@ >> +<?xml version="1.0"?> >> +<!-- Copyright (C) 2022-2024 Free Software Foundation, Inc. >> + >> + 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. --> >> + >> +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> >> +<feature name="org.gnu.gdb.loongarch.lsx"> >> + <vector id="v4f32" type="ieee_single" count="4"/> >> + <vector id="v2f64" type="ieee_double" count="2"/> >> + <vector id="v16i8" type="int8" count="16"/> >> + <vector id="v8i16" type="int16" count="8"/> >> + <vector id="v4i32" type="int32" count="4"/> >> + <vector id="v2i64" type="int64" count="2"/> >> + >> + <union id="lsxv"> >> + <field name="v4_float" type="v4f32"/> >> + <field name="v2_double" type="v2f64"/> >> + <field name="v16_int8" type="v16i8"/> >> + <field name="v8_int16" type="v8i16"/> >> + <field name="v4_int32" type="v4i32"/> >> + <field name="v2_int64" type="v2i64"/> >> + <field name="uint128" type="uint128"/> >> + </union> >> + >> + <reg name="vr0" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr1" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr2" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr3" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr4" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr5" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr6" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr7" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr8" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr9" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr10" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr11" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr12" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr13" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr14" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr15" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr16" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr17" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr18" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr19" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr20" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr21" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr22" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr23" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr26" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr25" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr26" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr27" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr28" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr29" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr30" bitsize="128" type="lsxv" group="lsx"/> >> + <reg name="vr31" bitsize="128" type="lsxv" group="lsx"/> >> +</feature> >> diff --git a/target/loongarch/gdbstub.c b/target/loongarch/gdbstub.c >> index a0e1439bd0..c9e2ddd943 100644 >> --- a/target/loongarch/gdbstub.c >> +++ b/target/loongarch/gdbstub.c >> @@ -116,8 +116,74 @@ static int loongarch_gdb_set_fpu(CPUState *cs, >> uint8_t *mem_buf, int n) >> return length; >> } >> +static int loongarch_gdb_get_vec(CPUState *cs, GByteArray >> *mem_buf, int n, int vl) >> +{ >> + LoongArchCPU *cpu = LOONGARCH_CPU(cs); >> + CPULoongArchState *env = &cpu->env; >> + int i, length = 0; >> + >> + if (0 <= n && n < 32) { >> + for (i = 0; i < vl / 64; i++) { >> + length += gdb_get_reg64(mem_buf, env->fpr[n].vreg.D(i)); >> + } > There is tab line wrapper issue. Thank you. I will correct it. > >> + } >> + >> + return length; >> +} >> + >> +static int loongarch_gdb_set_vec(CPUState *cs, uint8_t *mem_buf, int >> n, int vl) >> +{ >> + LoongArchCPU *cpu = LOONGARCH_CPU(cs); >> + CPULoongArchState *env = &cpu->env; >> + int i, length = 0; >> + >> + if (0 <= n && n < 32) { >> + for (i = 0; i < vl / 64; i++) { >> + env->fpr[n].vreg.D(i) = ldq_le_p(mem_buf + 8 * i); >> + length += 8; >> + } >> + } >> + >> + return length; >> +} >> + >> +static int loongarch_gdb_get_lsx(CPUState *cs, GByteArray *mem_buf, >> int n) >> +{ >> + return loongarch_gdb_get_vec(cs, mem_buf, n, LSX_LEN); >> +} >> + >> +static int loongarch_gdb_set_lsx(CPUState *cs, uint8_t *mem_buf, int n) >> +{ >> + return loongarch_gdb_set_vec(cs, mem_buf, n, LSX_LEN); >> +} >> + >> +static int loongarch_gdb_get_lasx(CPUState *cs, GByteArray *mem_buf, >> int n) >> +{ >> + return loongarch_gdb_get_vec(cs, mem_buf, n, LASX_LEN); >> +} >> + >> +static int loongarch_gdb_set_lasx(CPUState *cs, uint8_t *mem_buf, >> int n) >> +{ >> + return loongarch_gdb_set_vec(cs, mem_buf, n, LASX_LEN); >> +} >> + >> void loongarch_cpu_register_gdb_regs_for_features(CPUState *cs) >> { >> - gdb_register_coprocessor(cs, loongarch_gdb_get_fpu, >> loongarch_gdb_set_fpu, >> - gdb_find_static_feature("loongarch-fpu.xml"), 0); >> + LoongArchCPU *cpu = LOONGARCH_CPU(cs); >> + CPULoongArchState *env = &cpu->env; >> + >> + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, FP)) { >> + gdb_register_coprocessor(cs, loongarch_gdb_get_fpu, >> loongarch_gdb_set_fpu, >> + gdb_find_static_feature("loongarch-fpu.xml"), 0); >> + } >> + >> + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LSX)) { >> + gdb_register_coprocessor(cs, loongarch_gdb_get_lsx, >> loongarch_gdb_set_lsx, >> + gdb_find_static_feature("loongarch-lsx.xml"), 0); >> + } >> + >> + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LASX)) { >> + gdb_register_coprocessor(cs, loongarch_gdb_get_lasx, >> loongarch_gdb_set_lasx, >> + gdb_find_static_feature("loongarch-lasx.xml"), 0); >> + } > Can you list the actual output of gdb with the three conditions such > as LASX/LSX/FP enabled? > > I doubt the code should be: > if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LASX)) { > ... > } else if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LSX)) { > ... > } else if (FIELD_EX32(env->cpucfg[2], CPUCFG2, FP)) { > ... > } > On LoongArch host: ENABLE GDB FP LSX LASX FP √ unavailable unavailable LSX √ √ unavailable LASX √ √ √ Thanks. Song Gao > Regards > Bibo Mao >> } >>
diff --git a/configs/targets/loongarch64-linux-user.mak b/configs/targets/loongarch64-linux-user.mak index d878e5a113..ea9b7e839a 100644 --- a/configs/targets/loongarch64-linux-user.mak +++ b/configs/targets/loongarch64-linux-user.mak @@ -1,4 +1,4 @@ # Default configuration for loongarch64-linux-user TARGET_ARCH=loongarch64 TARGET_BASE_ARCH=loongarch -TARGET_XML_FILES=gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml +TARGET_XML_FILES=gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml gdb-xml/loongarch-lsx.xml gdb-xml/loongarch-lasx.xml diff --git a/configs/targets/loongarch64-softmmu.mak b/configs/targets/loongarch64-softmmu.mak index 65b65e0c34..ce19ab6a16 100644 --- a/configs/targets/loongarch64-softmmu.mak +++ b/configs/targets/loongarch64-softmmu.mak @@ -2,6 +2,6 @@ TARGET_ARCH=loongarch64 TARGET_BASE_ARCH=loongarch TARGET_KVM_HAVE_GUEST_DEBUG=y TARGET_SUPPORTS_MTTCG=y -TARGET_XML_FILES= gdb-xml/loongarch-base32.xml gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml +TARGET_XML_FILES= gdb-xml/loongarch-base32.xml gdb-xml/loongarch-base64.xml gdb-xml/loongarch-fpu.xml gdb-xml/loongarch-lsx.xml gdb-xml/loongarch-lasx.xml # all boards require libfdt TARGET_NEED_FDT=y diff --git a/gdb-xml/loongarch-lasx.xml b/gdb-xml/loongarch-lasx.xml new file mode 100644 index 0000000000..753b982c65 --- /dev/null +++ b/gdb-xml/loongarch-lasx.xml @@ -0,0 +1,60 @@ +<?xml version="1.0"?> +<!-- Copyright (C) 2022-2024 Free Software Foundation, Inc. + + 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. --> + +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> +<feature name="org.gnu.gdb.loongarch.lasx"> + <vector id="v8f32" type="ieee_single" count="8"/> + <vector id="v4f64" type="ieee_double" count="4"/> + <vector id="v32i8" type="int8" count="32"/> + <vector id="v16i16" type="int16" count="16"/> + <vector id="v8i32" type="int32" count="8"/> + <vector id="v4i64" type="int64" count="4"/> + <vector id="v2ui128" type="uint128" count="2"/> + + <union id="lasxv"> + <field name="v8_float" type="v8f32"/> + <field name="v4_double" type="v4f64"/> + <field name="v32_int8" type="v32i8"/> + <field name="v16_int16" type="v16i16"/> + <field name="v8_int32" type="v8i32"/> + <field name="v4_int64" type="v4i64"/> + <field name="v2_uint128" type="v2ui128"/> + </union> + + <reg name="xr0" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr1" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr2" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr3" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr4" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr5" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr6" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr7" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr8" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr9" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr10" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr11" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr12" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr13" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr14" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr15" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr16" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr17" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr18" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr19" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr20" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr21" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr22" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr23" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr24" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr25" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr26" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr27" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr28" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr29" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr30" bitsize="256" type="lasxv" group="lasx"/> + <reg name="xr31" bitsize="256" type="lasxv" group="lasx"/> +</feature> diff --git a/gdb-xml/loongarch-lsx.xml b/gdb-xml/loongarch-lsx.xml new file mode 100644 index 0000000000..51af1c6fd5 --- /dev/null +++ b/gdb-xml/loongarch-lsx.xml @@ -0,0 +1,59 @@ +<?xml version="1.0"?> +<!-- Copyright (C) 2022-2024 Free Software Foundation, Inc. + + 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. --> + +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> +<feature name="org.gnu.gdb.loongarch.lsx"> + <vector id="v4f32" type="ieee_single" count="4"/> + <vector id="v2f64" type="ieee_double" count="2"/> + <vector id="v16i8" type="int8" count="16"/> + <vector id="v8i16" type="int16" count="8"/> + <vector id="v4i32" type="int32" count="4"/> + <vector id="v2i64" type="int64" count="2"/> + + <union id="lsxv"> + <field name="v4_float" type="v4f32"/> + <field name="v2_double" type="v2f64"/> + <field name="v16_int8" type="v16i8"/> + <field name="v8_int16" type="v8i16"/> + <field name="v4_int32" type="v4i32"/> + <field name="v2_int64" type="v2i64"/> + <field name="uint128" type="uint128"/> + </union> + + <reg name="vr0" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr1" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr2" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr3" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr4" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr5" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr6" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr7" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr8" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr9" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr10" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr11" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr12" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr13" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr14" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr15" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr16" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr17" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr18" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr19" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr20" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr21" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr22" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr23" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr26" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr25" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr26" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr27" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr28" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr29" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr30" bitsize="128" type="lsxv" group="lsx"/> + <reg name="vr31" bitsize="128" type="lsxv" group="lsx"/> +</feature> diff --git a/target/loongarch/gdbstub.c b/target/loongarch/gdbstub.c index a0e1439bd0..c9e2ddd943 100644 --- a/target/loongarch/gdbstub.c +++ b/target/loongarch/gdbstub.c @@ -116,8 +116,74 @@ static int loongarch_gdb_set_fpu(CPUState *cs, uint8_t *mem_buf, int n) return length; } +static int loongarch_gdb_get_vec(CPUState *cs, GByteArray *mem_buf, int n, int vl) +{ + LoongArchCPU *cpu = LOONGARCH_CPU(cs); + CPULoongArchState *env = &cpu->env; + int i, length = 0; + + if (0 <= n && n < 32) { + for (i = 0; i < vl / 64; i++) { + length += gdb_get_reg64(mem_buf, env->fpr[n].vreg.D(i)); + } + } + + return length; +} + +static int loongarch_gdb_set_vec(CPUState *cs, uint8_t *mem_buf, int n, int vl) +{ + LoongArchCPU *cpu = LOONGARCH_CPU(cs); + CPULoongArchState *env = &cpu->env; + int i, length = 0; + + if (0 <= n && n < 32) { + for (i = 0; i < vl / 64; i++) { + env->fpr[n].vreg.D(i) = ldq_le_p(mem_buf + 8 * i); + length += 8; + } + } + + return length; +} + +static int loongarch_gdb_get_lsx(CPUState *cs, GByteArray *mem_buf, int n) +{ + return loongarch_gdb_get_vec(cs, mem_buf, n, LSX_LEN); +} + +static int loongarch_gdb_set_lsx(CPUState *cs, uint8_t *mem_buf, int n) +{ + return loongarch_gdb_set_vec(cs, mem_buf, n, LSX_LEN); +} + +static int loongarch_gdb_get_lasx(CPUState *cs, GByteArray *mem_buf, int n) +{ + return loongarch_gdb_get_vec(cs, mem_buf, n, LASX_LEN); +} + +static int loongarch_gdb_set_lasx(CPUState *cs, uint8_t *mem_buf, int n) +{ + return loongarch_gdb_set_vec(cs, mem_buf, n, LASX_LEN); +} + void loongarch_cpu_register_gdb_regs_for_features(CPUState *cs) { - gdb_register_coprocessor(cs, loongarch_gdb_get_fpu, loongarch_gdb_set_fpu, - gdb_find_static_feature("loongarch-fpu.xml"), 0); + LoongArchCPU *cpu = LOONGARCH_CPU(cs); + CPULoongArchState *env = &cpu->env; + + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, FP)) { + gdb_register_coprocessor(cs, loongarch_gdb_get_fpu, loongarch_gdb_set_fpu, + gdb_find_static_feature("loongarch-fpu.xml"), 0); + } + + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LSX)) { + gdb_register_coprocessor(cs, loongarch_gdb_get_lsx, loongarch_gdb_set_lsx, + gdb_find_static_feature("loongarch-lsx.xml"), 0); + } + + if (FIELD_EX32(env->cpucfg[2], CPUCFG2, LASX)) { + gdb_register_coprocessor(cs, loongarch_gdb_get_lasx, loongarch_gdb_set_lasx, + gdb_find_static_feature("loongarch-lasx.xml"), 0); + } }
GDB already support LoongArch vector extension[1], QEMU gdb adds LoongArch vector registers support, so that users can use 'info all-registers' to get all vector registers values. [1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=1e9569f383a3d5a88ee07d0c2401bd95613c222e Signed-off-by: Song Gao <gaosong@loongson.cn> --- based-on: https://patchew.org/QEMU/20240607035016.2975799-1-maobibo@loongson.cn/ configs/targets/loongarch64-linux-user.mak | 2 +- configs/targets/loongarch64-softmmu.mak | 2 +- gdb-xml/loongarch-lasx.xml | 60 +++++++++++++++++++ gdb-xml/loongarch-lsx.xml | 59 ++++++++++++++++++ target/loongarch/gdbstub.c | 70 +++++++++++++++++++++- 5 files changed, 189 insertions(+), 4 deletions(-) create mode 100644 gdb-xml/loongarch-lasx.xml create mode 100644 gdb-xml/loongarch-lsx.xml