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authorJeffrey A Law <law@cygnus.com>1999-06-11 03:12:22 +0000
committerJeff Law <law@gcc.gnu.org>1999-06-10 21:12:22 -0600
commit657be7aff1202e2422538818aa6c20ad88a64766 (patch)
treef0e3f6432b8d16aa10539efd68881ddfbc6b6876 /gcc/libgcc2.c
parent2fdf4c3e97a23e8fb59542568f5536bcf05ac188 (diff)
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Makefile.in (libgcc2): Pass MAYBE_USE_COLLECT2 as an argument.
* Makefile.in (libgcc2): Pass MAYBE_USE_COLLECT2 as an argument. * libgcc2.c (__CTOR_LIST, __DTOR_LIST); Do not provide initializers is some circumstances. From-SVN: r27489
Diffstat (limited to 'gcc/libgcc2.c')
-rw-r--r--gcc/libgcc2.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/gcc/libgcc2.c b/gcc/libgcc2.c
index a902dd3b..6d8fb0b 100644
--- a/gcc/libgcc2.c
+++ b/gcc/libgcc2.c
@@ -2903,17 +2903,26 @@ SYMBOL__MAIN ()
#include "gbl-ctors.h"
/* Provide default definitions for the lists of constructors and
- destructors, so that we don't get linker errors.
-
- The old code sometimes put these into the data segment and sometimes
- into the bss segment. Putting these into the data segment should always
- work and avoids a little bit of complexity. */
+ destructors, so that we don't get linker errors. These symbols are
+ intentionally bss symbols, so that gld and/or collect will provide
+ the right values. */
/* We declare the lists here with two elements each,
- so that they are valid empty lists if no other definition is loaded. */
+ so that they are valid empty lists if no other definition is loaded.
+
+ If we are using the old "set" extensions to have the gnu linker
+ collect ctors and dtors, then we __CTOR_LIST__ and __DTOR_LIST__
+ must be in the bss/common section.
+
+ Long term no port should use those extensions. But many still do. */
#if !defined(INIT_SECTION_ASM_OP) && !defined(CTOR_LISTS_DEFINED_EXTERNALLY)
+#if defined (ASM_OUTPUT_CONSTRUCTOR) || defined (USE_COLLECT2)
func_ptr __CTOR_LIST__[2] = {0, 0};
func_ptr __DTOR_LIST__[2] = {0, 0};
+#else
+func_ptr __CTOR_LIST__[2];
+func_ptr __DTOR_LIST__[2];
+#endif
#endif /* no INIT_SECTION_ASM_OP and not CTOR_LISTS_DEFINED_EXTERNALLY */
#endif /* L_ctors */