Merge tag 'pull-log-20220420' of https://gitlab.com/rth7680/qemu into staging

Clean up log locking.
Use the FILE* from qemu_log_trylock more often.
Support per-thread log files with -d tid.

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# gpg: Signature made Wed 20 Apr 2022 11:03:01 AM PDT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
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# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* tag 'pull-log-20220420' of https://gitlab.com/rth7680/qemu: (39 commits)
  util/log: Support per-thread log files
  util/log: Limit RCUCloseFILE to file closing
  util/log: Rename QemuLogFile to RCUCloseFILE
  util/log: Combine two logfile closes
  util/log: Hoist the eval of is_daemonized in qemu_set_log_internal
  util/log: Rename qemu_logfile_mutex to global_mutex
  util/log: Rename qemu_logfile to global_file
  util/log: Rename logfilename to global_filename
  util/log: Remove qemu_log_close
  softmmu: Use qemu_set_log_filename_flags
  linux-user: Use qemu_set_log_filename_flags
  bsd-user: Use qemu_set_log_filename_flags
  util/log: Introduce qemu_set_log_filename_flags
  sysemu/os-win32: Test for and use _lock_file/_unlock_file
  include/qemu/log: Move entire implementation out-of-line
  include/exec/log: Do not reference QemuLogFile directly
  tests/unit: Do not reference QemuLogFile directly
  linux-user: Expand log_page_dump inline
  bsd-user: Expand log_page_dump inline
  util/log: Drop call to setvbuf
  ...

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

1 files changed, 32 insertions, 24 deletions

diff --git a/bsd-user/main.c b/bsd-user/main.c
index 88d347d05e..aa13eae7f3 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -405,17 +405,16 @@ int main(int argc, char **argv)
     }
 
     /* init debug */
-    qemu_log_needs_buffers();
-    qemu_set_log_filename(log_file, &error_fatal);
-    if (log_mask) {
-        int mask;
-
-        mask = qemu_str_to_log_mask(log_mask);
-        if (!mask) {
-            qemu_print_log_usage(stdout);
-            exit(1);
+    {
+        int mask = 0;
+        if (log_mask) {
+            mask = qemu_str_to_log_mask(log_mask);
+            if (!mask) {
+                qemu_print_log_usage(stdout);
+                exit(1);
+            }
         }
-        qemu_set_log(mask);
+        qemu_set_log_filename_flags(log_file, mask, &error_fatal);
     }
 
     if (optind >= argc) {
@@ -504,20 +503,29 @@ int main(int argc, char **argv)
     g_free(target_environ);
 
     if (qemu_loglevel_mask(CPU_LOG_PAGE)) {
-        qemu_log("guest_base  %p\n", (void *)guest_base);
-        log_page_dump("binary load");
-
-        qemu_log("start_brk   0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
-        qemu_log("end_code    0x" TARGET_ABI_FMT_lx "\n", info->end_code);
-        qemu_log("start_code  0x" TARGET_ABI_FMT_lx "\n",
-                 info->start_code);
-        qemu_log("start_data  0x" TARGET_ABI_FMT_lx "\n",
-                 info->start_data);
-        qemu_log("end_data    0x" TARGET_ABI_FMT_lx "\n", info->end_data);
-        qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
-                 info->start_stack);
-        qemu_log("brk         0x" TARGET_ABI_FMT_lx "\n", info->brk);
-        qemu_log("entry       0x" TARGET_ABI_FMT_lx "\n", info->entry);
+        FILE *f = qemu_log_trylock();
+        if (f) {
+            fprintf(f, "guest_base  %p\n", (void *)guest_base);
+            fprintf(f, "page layout changed following binary load\n");
+            page_dump(f);
+
+            fprintf(f, "start_brk   0x" TARGET_ABI_FMT_lx "\n",
+                    info->start_brk);
+            fprintf(f, "end_code    0x" TARGET_ABI_FMT_lx "\n",
+                    info->end_code);
+            fprintf(f, "start_code  0x" TARGET_ABI_FMT_lx "\n",
+                    info->start_code);
+            fprintf(f, "start_data  0x" TARGET_ABI_FMT_lx "\n",
+                    info->start_data);
+            fprintf(f, "end_data    0x" TARGET_ABI_FMT_lx "\n",
+                    info->end_data);
+            fprintf(f, "start_stack 0x" TARGET_ABI_FMT_lx "\n",
+                    info->start_stack);
+            fprintf(f, "brk         0x" TARGET_ABI_FMT_lx "\n", info->brk);
+            fprintf(f, "entry       0x" TARGET_ABI_FMT_lx "\n", info->entry);
+
+            qemu_log_unlock(f);
+        }
     }
 
     /* build Task State */