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2013-07-02 Joey Ye <joey.ye@arm.com>

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* arm/crt0.S (_mainCRTStartup): Weak reference to atexit and _fini
        when lite exit is enabled.
This commit is contained in:
Jeff Johnston
2013-07-02 21:34:35 +00:00
parent e2ac49d3d7
commit 2404223df6
2 changed files with 22 additions and 1 deletions
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5
libgloss/ChangeLog
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@@ -1,3 +1,8 @@
2013-07-02 Joey Ye <joey.ye@arm.com>
* arm/crt0.S (_mainCRTStartup): Weak reference to atexit and _fini
when lite exit is enabled.
2013-06-28 Yufeng Zhang <Yufeng.Zhang@arm.com>
* aarch64/syscalls.c (POINTER_TO_PARAM_BLOCK_T): New macro.

18
libgloss/arm/crt0.S
View File

@@ -390,12 +390,21 @@ __change_mode:
for _fini to be called at program exit. */
movs r4, r0
movs r5, r1
#ifdef _LITE_EXIT
/* Make reference to atexit weak to avoid unconditionally pulling in
support code. Refer to comments in __atexit.c for more details. */
.weak FUNCTION(atexit)
ldr r0, .Latexit
cmp r0, #0
beq .Lweak_atexit
#endif
ldr r0, .Lfini
bl FUNCTION (atexit)
.Lweak_atexit:
bl FUNCTION (_init)
movs r0, r4
movs r1, r5
#endif
#endif
bl FUNCTION (main)
bl FUNCTION (exit) /* Should not return. */
@@ -465,6 +474,13 @@ change_back:
.LC2:
.word __bss_end__
#ifdef __USES_INITFINI__
#ifdef _LITE_EXIT
.Latexit:
.word FUNCTION(atexit)
/* Weak reference _fini in case of lite exit. */
.weak FUNCTION(_fini)
#endif
.Lfini:
.word FUNCTION(_fini)
#endif