gh-95973: Add a new --with-dsymutil option to link debug information in macOS (GH-95974)

Automerge-Triggered-By: GH:pablogsal

1 files changed, 83 insertions, 3 deletions

diff --git a/configure b/configure
index 1801f80..ee2eabb 100755
--- a/configure
+++ b/configure
@@ -869,6 +869,8 @@ BLDSHARED
 LDCXXSHARED
 LDSHARED
 SHLIB_SUFFIX
+DSYMUTIL_PATH
+DSYMUTIL
 LIBTOOL_CRUFT
 OTHER_LIBTOOL_OPT
 UNIVERSAL_ARCH_FLAGS
@@ -1053,6 +1055,7 @@ with_assertions
 enable_optimizations
 with_lto
 enable_bolt
+with_dsymutil
 with_address_sanitizer
 with_memory_sanitizer
 with_undefined_behavior_sanitizer
@@ -1824,6 +1827,8 @@ Optional Packages:
   --with-lto=[full|thin|no|yes]
                           enable Link-Time-Optimization in any build (default
                           is no)
+  --with-dsymutil         link debug information into final executable with
+                          dsymutil in macOS (default is no)
   --with-address-sanitizer
                           enable AddressSanitizer memory error detector,
                           'asan' (default is no)
@@ -7831,10 +7836,10 @@ $as_echo "$as_me: llvm-ar found via xcrun: ${LLVM_AR}" >&6;}
           # Any changes made here should be reflected in the GCC+Darwin case below
           if test $Py_LTO_POLICY = default
           then
-            LTOFLAGS="-flto -Wl,-export_dynamic"
+            LTOFLAGS="-flto -Wl,-export_dynamic -Wl,-object_path_lto,\"\$@\".lto"
             LTOCFLAGS="-flto"
           else
-            LTOFLAGS="-flto=${Py_LTO_POLICY} -Wl,-export_dynamic"
+            LTOFLAGS="-flto=${Py_LTO_POLICY} -Wl,-export_dynamic -Wl,-object_path_lto,\"\$@\".lto"
             LTOCFLAGS="-flto=${Py_LTO_POLICY}"
           fi
           ;;
@@ -7863,7 +7868,7 @@ $as_echo "$as_me: llvm-ar found via xcrun: ${LLVM_AR}" >&6;}
             LDFLAGS_NOLTO="-fno-lto"
       case $ac_sys_system in
         Darwin*)
-          LTOFLAGS="-flto -Wl,-export_dynamic"
+          LTOFLAGS="-flto -Wl,-export_dynamic -Wl,-object_path_lto,\"\$@\".lto"
           LTOCFLAGS="-flto"
           ;;
         *)
@@ -10974,6 +10979,81 @@ else
 $as_echo "no" >&6; }
 fi
 
+# Check for --with-dsymutil
+
+
+DSYMUTIL=
+DSYMUTIL_PATH=
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --with-dsymutil" >&5
+$as_echo_n "checking for --with-dsymutil... " >&6; }
+
+# Check whether --with-dsymutil was given.
+if test "${with_dsymutil+set}" = set; then :
+  withval=$with_dsymutil;
+if test "$withval" != no
+then
+  if test "$MACHDEP" != "darwin"; then
+    as_fn_error $? "dsymutil debug linking is only available in macOS." "$LINENO" 5
+  fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; };
+  DSYMUTIL='true'
+else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }; DSYMUTIL=
+fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+if test "$DSYMUTIL"; then
+  # Extract the first word of "dsymutil", so it can be a program name with args.
+set dummy dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_DSYMUTIL_PATH+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $DSYMUTIL_PATH in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_DSYMUTIL_PATH="$DSYMUTIL_PATH" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_DSYMUTIL_PATH="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_DSYMUTIL_PATH" && ac_cv_path_DSYMUTIL_PATH="not found"
+  ;;
+esac
+fi
+DSYMUTIL_PATH=$ac_cv_path_DSYMUTIL_PATH
+if test -n "$DSYMUTIL_PATH"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL_PATH" >&5
+$as_echo "$DSYMUTIL_PATH" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  if test "$DSYMUTIL_PATH" = "not found"; then
+      as_fn_error $? "dsymutil command not found on \$PATH" "$LINENO" 5
+  fi
+fi
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dyld" >&5
 $as_echo_n "checking for dyld... " >&6; }
 case $ac_sys_system/$ac_sys_release in