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| author | Jeff Johnston <jjohnstn@redhat.com> | 2013-07-02 21:34:35 +0000 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2013-07-02 21:34:35 +0000 |
| commit | 2404223df651ceef42c6e2f2c9fa42fb7963db10 (patch) | |
| tree | b9ad79ba4a61ee371d7bf4b9df52244819bc4872 /libgloss/arm/crt0.S | |
| parent | e2ac49d3d7c6445c07467e2a4d271d5664f83830 (diff) | |
| download | newlib-2404223df651ceef42c6e2f2c9fa42fb7963db10.zip newlib-2404223df651ceef42c6e2f2c9fa42fb7963db10.tar.gz newlib-2404223df651ceef42c6e2f2c9fa42fb7963db10.tar.bz2 | |
2013-07-02 Joey Ye <joey.ye@arm.com>
* arm/crt0.S (_mainCRTStartup): Weak reference to atexit and _fini
when lite exit is enabled.
Diffstat (limited to 'libgloss/arm/crt0.S')
| -rw-r--r-- | libgloss/arm/crt0.S | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/libgloss/arm/crt0.S b/libgloss/arm/crt0.S index 92e7648..f7ed5c5 100644 --- a/libgloss/arm/crt0.S +++ b/libgloss/arm/crt0.S @@ -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 |