Improve GC error printing atomicity in GC_debug_X and GC_print_obj

* dbg_mlc.c (GC_generate_random_backtrace_no_gc): Refine comment.
* dbg_mlc.c (GC_print_type): Replace multiple code fragments calling
GC_err_puts with a single invocation of GC_err_puts (or GC_err_printf)
at the routine end (code refactoring).
* dbg_mlc.c (IF_NOT_SHORTDBG_HDRS, COMMA_IFNOT_SHORTDBG_HDRS): New
macro (used by GC_print_obj).
* dbg_mlc.c (GC_print_obj, GC_debug_malloc,
GC_debug_malloc_ignore_off_page,
GC_debug_malloc_atomic_ignore_off_page, GC_debug_malloc_stubborn,
GC_debug_malloc_atomic, GC_debug_malloc_uncollectable,
GC_debug_malloc_atomic_uncollectable): Replace adjacent GC_err_printf
and GC_err_puts calls with a single GC_err_printf invocation (for
output atomicity).
* gcj_mlc.c (GC_debug_gcj_malloc): Likewise.
* os_dep.c (GC_register_data_segments): Likewise.
* dbg_mlc.c (GC_malloc_stubborn): Fix printed function name.

1 files changed, 2 insertions, 4 deletions

diff --git a/gcj_mlc.c b/gcj_mlc.c
index ea5c8816..d2dcbb58 100644
--- a/gcj_mlc.c
+++ b/gcj_mlc.c
@@ -220,10 +220,8 @@ GC_API void * GC_CALL GC_debug_gcj_malloc(size_t lb,
     if (result == 0) {
         GC_oom_func oom_fn = GC_oom_fn;
         UNLOCK();
-        GC_err_printf("GC_debug_gcj_malloc(%lu, %p) returning NULL (",
-                      (unsigned long)lb, ptr_to_struct_containing_descr);
-        GC_err_puts(s);
-        GC_err_printf(":%d)\n", i);
+        GC_err_printf("GC_debug_gcj_malloc(%lu, %p) returning NULL (%s:%d)\n",
+                (unsigned long)lb, ptr_to_struct_containing_descr, s, i);
         return((*oom_fn)(lb));
     }
     *((void **)((ptr_t)result + sizeof(oh))) = ptr_to_struct_containing_descr;