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-rw-r--r--gas/frags.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/gas/frags.c b/gas/frags.c
index 21fe262..6dae8bc 100644
--- a/gas/frags.c
+++ b/gas/frags.c
@@ -91,7 +91,14 @@ frag_grow (unsigned int nchars)
frag_wane (frag_now);
frag_new (0);
oldc = frchain_now->frch_obstack.chunk_size;
- frchain_now->frch_obstack.chunk_size = 2 * nchars + SIZEOF_STRUCT_FRAG;
+ /* Try to allocate a bit more than needed right now. But don't do
+ this if we would waste too much memory. Especially necessary
+ for extremely big (like 2GB initialized) frags. */
+ if (nchars < 0x10000)
+ frchain_now->frch_obstack.chunk_size = 2 * nchars;
+ else
+ frchain_now->frch_obstack.chunk_size = nchars + 0x10000;
+ frchain_now->frch_obstack.chunk_size += SIZEOF_STRUCT_FRAG;
if (frchain_now->frch_obstack.chunk_size > 0)
while ((n = obstack_room (&frchain_now->frch_obstack)) < nchars
&& (unsigned long) frchain_now->frch_obstack.chunk_size > nchars)