On 11/7/24 04:44, 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 <gaos...@loongson.cn>
---
based-on:
https://patchew.org/QEMU/20240607035016.2975799-1-maob...@loongson.cn/
v2:
- fix tab line wrapper issue.
- Link to v1:
https://patchew.org/QEMU/20240621065406.864232-1-gaos...@loongson.cn/
configs/targets/loongarch64-linux-user.mak | 2 +-
configs/targets/loongarch64-softmmu.mak | 2 +-
target/loongarch/gdbstub.c | 70 +++++++++++++++++++++-
gdb-xml/loongarch-lasx.xml | 60 +++++++++++++++++++
gdb-xml/loongarch-lsx.xml | 59 ++++++++++++++++++
5 files changed, 189 insertions(+), 4 deletions(-)
create mode 100644 gdb-xml/loongarch-lasx.xml
create mode 100644 gdb-xml/loongarch-lsx.xml
+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++) {
Preferably using FOO_PER_BAR definitions for 32 & 64 magic values,
Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>
+ 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;
+}
