OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

(DO_GLOBAL_CTORS_BODY): Reverse order of execution

Browse Source 
of constuctor lists.

From-SVN: r7818
This commit is contained in:
Jason Merrill 1994-07-29 19:03:37 +00:00
parent 566b213ab1
commit e5952538c4
2 changed files with 12 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
gcc/config/svr3.h
View File

@ -221,7 +221,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
/* CTOR_LIST_BEGIN and CTOR_LIST_END are machine-dependent
because they push on the stack. */
#ifdef STACK_GROWS_DOWNWARD
#ifndef STACK_GROWS_DOWNWARD
/* Constructor list on stack is in reverse order. Go to the end of the
list and go backwards to call constructors in the right order. */

17
gcc/gbl-ctors.h
View File

@ -63,18 +63,23 @@ extern void __do_global_dtors ();
we define it once here as a macro to avoid various instances getting
out-of-sync with one another. */
/* The first word may or may not contain the number of pointers in the table.
/* Some systems place the number of pointers
in the first word of the table.
On other systems, that word is -1.
In all cases, the table is null-terminated.
We ignore the first word and scan up to the null. */
If the length is not recorded, count up to the null. */
/* Some systems use a different strategy for finding the ctors.
For example, svr3. */
#ifndef DO_GLOBAL_CTORS_BODY
#define DO_GLOBAL_CTORS_BODY \
do { \
func_ptr *p; \
for (p = __CTOR_LIST__ + 1; *p; ) \
(*p++) (); \
} while (0)
unsigned nptrs = (unsigned HOST_WIDE_INT) __CTOR_LIST__[0]; \
unsigned i; \
if (nptrs == -1) \
for (nptrs = 0; __CTOR_LIST__[nptrs + 1] != 0; nptrs++); \
for (i = nptrs; i >= 1; i--) \
__CTOR_LIST__[i] (); \
} while (0)
#endif