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* [newlib-cygwin/main] arc: libgloss: Use atexit to setup fini routines
@ 2024-05-22 18:28 Jeff Johnston
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From: Jeff Johnston @ 2024-05-22 18:28 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=6cfdd3350ee6f8c8ba8ccd46505d70a624ef3f75
commit 6cfdd3350ee6f8c8ba8ccd46505d70a624ef3f75
Author: Claudiu Zissulescu <claziss@gmail.com>
Date: Tue May 21 10:56:50 2024 +0100
arc: libgloss: Use atexit to setup fini routines
Use atexit funtion to setup fini routines to be called on exit
instead of filling in __atexit structures manually.
Signed-off-by: Claudiu Zissulescu <claziss@gmail.com>
Diff:
---
libgloss/arc/crt0.S | 25 +++++--------------------
1 file changed, 5 insertions(+), 20 deletions(-)
diff --git a/libgloss/arc/crt0.S b/libgloss/arc/crt0.S
index 235f81028..1999e602b 100644
--- a/libgloss/arc/crt0.S
+++ b/libgloss/arc/crt0.S
@@ -178,27 +178,12 @@ __start:
#endif /* !__ARC601__ */
-; Some targets use the .init and .fini sections to create constructors and
-; destructors, and for these targets we need to call the _init function and
-; arrange for _fini to be called at program exit.
- mov_s r13, r0
- mov_s r14, r1
- ; calling atexit drags in malloc, so instead poke the function
- ; address directly into the reent structure
- ld r1, [gp, @_impure_ptr@sda]
- mov_s r1, @__atexit0
- mov_s r2, @__atexit
- st_s r1, [r2, 0] ; __atexit = &__atexit0
- mov_s r0, 1
- st_s r0, [r1, 4] ; __atexit0._ind = 1
- mov_s r0, @_fini
- st_s r0, [r1, 8] ; __atexit0._fns[0] = _fini
-; branch to _init
-#if defined (__ARCEM__) || defined (__ARCHS__)
+ ;; Call constructors
jl @_init
-#else
- bl @_init
-#endif /* __ARCEM__ || __ARCHS__ */
+
+;;; Setup fini routines to be called from exit
+ mov_s r0, @_fini
+ jl @atexit
#ifdef PROFILE_SUPPORT /* Defined in gcrt0.S. */
mov r0,@__start
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