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authorRoland McGrath <roland@hack.frob.com>2013-03-12 12:47:36 -0700
committerRoland McGrath <roland@hack.frob.com>2013-03-12 12:50:13 -0700
commit9967e003b32d20441892386f1092d1aded51e1aa (patch)
treea39f6ef0310b7b112c568abb0653512e59d2dfed /sysdeps/init_array/crtn.S
parente6b5a29364551637c6f43e6c41b06cd8dd3a129b (diff)
downloadglibc-9967e003b32d20441892386f1092d1aded51e1aa.tar.gz
Add sysdeps/init_array to produce empty crt[in].o and use .preinit_array for gcrt1.o
Diffstat (limited to 'sysdeps/init_array/crtn.S')
-rw-r--r--sysdeps/init_array/crtn.S13
1 files changed, 13 insertions, 0 deletions
diff --git a/sysdeps/init_array/crtn.S b/sysdeps/init_array/crtn.S
new file mode 100644
index 0000000000..6f70e77160
--- /dev/null
+++ b/sysdeps/init_array/crtn.S
@@ -0,0 +1,13 @@
+/* Dummy crtn file.
+
+ In this configuration, crti.o and crtn.o are both empty because the
+ .init_array/.fini_array sections are used exclusively.
+
+ Older ports cannot use this because even if the linker used to
+ build libc itself has .init_array support, we don't want to produce
+ a crt[in].o that presume a linker that new will be used to link
+ other things later.
+
+ But new configurations without compatibility concerns for
+ toolchains without .init_array support can use this to avoid the
+ superfluous .init and .fini boilerplate code. */