[02/37] accel/tcg: Build plugin-gen.c once

Commit Message

Richard Henderson March 13, 2025, 3:44 a.m. UTC

We assert that env immediately follows CPUState in cpu-all.h.
Change the offsetof expressions to be based on CPUState instead
of ArchCPU.

Signed-off-by: Richard Henderson <[e-mail]>
---
 accel/tcg/plugin-gen.c | 13 +++++--------
 accel/tcg/meson.build  |  7 ++++---
 2 files changed, 9 insertions(+), 11 deletions(-)

Patch

diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c
index 7e5f040bf7..c1da753894 100644
--- a/accel/tcg/plugin-gen.c
+++ b/accel/tcg/plugin-gen.c
@@ -22,13 +22,12 @@ 
 #include "qemu/osdep.h"
 #include "qemu/plugin.h"
 #include "qemu/log.h"
-#include "cpu.h"
 #include "tcg/tcg.h"
 #include "tcg/tcg-temp-internal.h"
-#include "tcg/tcg-op.h"
-#include "exec/exec-all.h"
+#include "tcg/tcg-op-common.h"
 #include "exec/plugin-gen.h"
 #include "exec/translator.h"
+#include "exec/translation-block.h"
 
 enum plugin_gen_from {
     PLUGIN_GEN_FROM_TB,
@@ -89,15 +88,13 @@  static void gen_enable_mem_helper(struct qemu_plugin_tb *ptb,
     qemu_plugin_add_dyn_cb_arr(arr);
 
     tcg_gen_st_ptr(tcg_constant_ptr((intptr_t)arr), tcg_env,
-                   offsetof(CPUState, neg.plugin_mem_cbs) -
-                   offsetof(ArchCPU, env));
+                   offsetof(CPUState, neg.plugin_mem_cbs) - sizeof(CPUState));
 }
 
 static void gen_disable_mem_helper(void)
 {
     tcg_gen_st_ptr(tcg_constant_ptr(0), tcg_env,
-                   offsetof(CPUState, neg.plugin_mem_cbs) -
-                   offsetof(ArchCPU, env));
+                   offsetof(CPUState, neg.plugin_mem_cbs) - sizeof(CPUState));
 }
 
 static TCGv_i32 gen_cpu_index(void)
@@ -113,7 +110,7 @@  static TCGv_i32 gen_cpu_index(void)
     }
     TCGv_i32 cpu_index = tcg_temp_ebb_new_i32();
     tcg_gen_ld_i32(cpu_index, tcg_env,
-                   -offsetof(ArchCPU, env) + offsetof(CPUState, cpu_index));
+                   offsetof(CPUState, cpu_index) - sizeof(CPUState));
     return cpu_index;
 }
 
diff --git a/accel/tcg/meson.build b/accel/tcg/meson.build
index 14bf797fda..185830d0f5 100644
--- a/accel/tcg/meson.build
+++ b/accel/tcg/meson.build
@@ -3,6 +3,10 @@  common_ss.add(when: 'CONFIG_TCG', if_true: files(
   'tcg-runtime.c',
   'tcg-runtime-gvec.c',
 ))
+if get_option('plugins')
+  common_ss.add(when: 'CONFIG_TCG', if_true: files('plugin-gen.c'))
+endif
+
 tcg_specific_ss = ss.source_set()
 tcg_specific_ss.add(files(
   'tcg-all.c',
@@ -12,9 +16,6 @@  tcg_specific_ss.add(files(
   'translator.c',
 ))
 tcg_specific_ss.add(when: 'CONFIG_USER_ONLY', if_true: files('user-exec.c'))
-if get_option('plugins')
-  tcg_specific_ss.add(files('plugin-gen.c'))
-endif
 specific_ss.add_all(when: 'CONFIG_TCG', if_true: tcg_specific_ss)
 
 specific_ss.add(when: ['CONFIG_SYSTEM_ONLY', 'CONFIG_TCG'], if_true: files(