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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 /csu
parente6b5a29364551637c6f43e6c41b06cd8dd3a129b (diff)
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Add sysdeps/init_array to produce empty crt[in].o and use .preinit_array for gcrt1.o
Diffstat (limited to 'csu')
-rw-r--r--csu/elf-init.c7
-rw-r--r--csu/gmon-start.c7
2 files changed, 14 insertions, 0 deletions
diff --git a/csu/elf-init.c b/csu/elf-init.c
index 1e231c1..84700e6 100644
--- a/csu/elf-init.c
+++ b/csu/elf-init.c
@@ -49,10 +49,13 @@ extern void (*__fini_array_start []) (void) attribute_hidden;
extern void (*__fini_array_end []) (void) attribute_hidden;
+#ifndef NO_INITFINI
/* These function symbols are provided for the .init/.fini section entry
points automagically by the linker. */
extern void _init (void);
extern void _fini (void);
+#endif
+
/* These functions are passed to __libc_start_main by the startup code.
These get statically linked into each program. For dynamically linked
@@ -76,7 +79,9 @@ __libc_csu_init (int argc, char **argv, char **envp)
}
#endif
+#ifndef NO_INITFINI
_init ();
+#endif
const size_t size = __init_array_end - __init_array_start;
for (size_t i = 0; i < size; i++)
@@ -94,6 +99,8 @@ __libc_csu_fini (void)
while (i-- > 0)
(*__fini_array_start [i]) ();
+# ifndef NO_INITFINI
_fini ();
+# endif
#endif
}
diff --git a/csu/gmon-start.c b/csu/gmon-start.c
index 54495eb..0c18321 100644
--- a/csu/gmon-start.c
+++ b/csu/gmon-start.c
@@ -59,10 +59,17 @@ extern char etext[];
# endif
#endif
+#ifdef GMON_START_ARRAY_SECTION
+static void __gmon_start__ (void);
+static void (*const gmon_start_initializer) (void)
+ __attribute__ ((used, section (GMON_START_ARRAY_SECTION))) = &__gmon_start__;
+static
+#else
/* We cannot use the normal constructor mechanism to call
__gmon_start__ because gcrt1.o appears before crtbegin.o in the link.
Instead crti.o calls it specially. */
extern void __gmon_start__ (void);
+#endif
void
__gmon_start__ (void)