Merge tag 'pull-maintainer-july24-050724-1' of https://gitlab.com/stsquad/qemu into staging

Updates for testing, plugins, gdbstub

  - restore some 32 bit host builds and testing
  - move some physmem tracepoint definitions
  - use --userns keep-id for podman builds
  - cleanup check-tcg compiler flag checking for Arm
  - fix some casting in fcvt test
  - tweak check-tcg inline asm for clang
  - suppress some invalid clang warnings
  - disable KVM for the TCI builds
  - improve the insn tracking plugin
  - cleanups to the lockstep plugin
  - free plugin data on cpu finalise
  - assert cpu->index assigned
  - move qemu_plugin_vcpu_init__async into plugin code
  - add support for dynamic gdb command tables
  - allow targets to extend gdb capabilities
  - enable user-mode MTE support

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# gpg: Signature made Fri 05 Jul 2024 04:49:05 AM PDT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]

* tag 'pull-maintainer-july24-050724-1' of https://gitlab.com/stsquad/qemu: (40 commits)
  tests/tcg/aarch64: Add MTE gdbstub tests
  gdbstub: Add support for MTE in user mode
  gdbstub: Use true to set cmd_startswith
  gdbstub: Pass CPU context to command handler
  gdbstub: Make hex conversion function non-internal
  target/arm: Factor out code for setting MTE TCF0 field
  target/arm: Make some MTE helpers widely available
  target/arm: Fix exception case in allocation_tag_mem_probe
  gdbstub: Add support for target-specific stubs
  gdbstub: Move GdbCmdParseEntry into a new header file
  gdbstub: Clean up process_string_cmd
  accel/tcg: Move qemu_plugin_vcpu_init__async() to plugins/
  plugins: Free CPUPluginState before destroying vCPU state
  plugins: Ensure vCPU index is assigned in init/exit hooks
  plugins/lockstep: clean-up output
  plugins/lockstep: mention the one-insn-per-tb option
  plugins/lockstep: make mixed-mode safe
  plugins/lockstep: preserve sock_path
  test/plugins: preserve the instruction record over translations
  test/plugin: make insn plugin less noisy by default
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/target/arm/gdbstub.c b/target/arm/gdbstub.c
index a3bb73cfa7..c3a9b5eb1e 100644
--- a/target/arm/gdbstub.c
+++ b/target/arm/gdbstub.c
@@ -21,6 +21,7 @@
 #include "cpu.h"
 #include "exec/gdbstub.h"
 #include "gdbstub/helpers.h"
+#include "gdbstub/commands.h"
 #include "sysemu/tcg.h"
 #include "internals.h"
 #include "cpu-features.h"
@@ -474,6 +475,41 @@ static GDBFeature *arm_gen_dynamic_m_secextreg_feature(CPUState *cs,
 #endif
 #endif /* CONFIG_TCG */
 
+void arm_cpu_register_gdb_commands(ARMCPU *cpu)
+{
+    GArray *query_table =
+        g_array_new(FALSE, FALSE, sizeof(GdbCmdParseEntry));
+    GArray *set_table =
+        g_array_new(FALSE, FALSE, sizeof(GdbCmdParseEntry));
+    GString *qsupported_features = g_string_new(NULL);
+
+    if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) {
+    #ifdef TARGET_AARCH64
+        aarch64_cpu_register_gdb_commands(cpu, qsupported_features, query_table,
+                                          set_table);
+    #endif
+    }
+
+    /* Set arch-specific handlers for 'q' commands. */
+    if (query_table->len) {
+        gdb_extend_query_table(&g_array_index(query_table,
+                                              GdbCmdParseEntry, 0),
+                                              query_table->len);
+    }
+
+    /* Set arch-specific handlers for 'Q' commands. */
+    if (set_table->len) {
+        gdb_extend_set_table(&g_array_index(set_table,
+                             GdbCmdParseEntry, 0),
+                             set_table->len);
+    }
+
+    /* Set arch-specific qSupported feature. */
+    if (qsupported_features->len) {
+        gdb_extend_qsupported_features(qsupported_features->str);
+    }
+}
+
 void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu)
 {
     CPUState *cs = CPU(cpu);
@@ -507,6 +543,16 @@ void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu)
                                      gdb_find_static_feature("aarch64-pauth.xml"),
                                      0);
         }
+
+#ifdef CONFIG_USER_ONLY
+        /* Memory Tagging Extension (MTE) 'tag_ctl' pseudo-register. */
+        if (cpu_isar_feature(aa64_mte, cpu)) {
+            gdb_register_coprocessor(cs, aarch64_gdb_get_tag_ctl_reg,
+                                     aarch64_gdb_set_tag_ctl_reg,
+                                     gdb_find_static_feature("aarch64-mte.xml"),
+                                     0);
+        }
+#endif
 #endif
     } else {
         if (arm_feature(env, ARM_FEATURE_NEON)) {