diff options
| author | Anthony Green <green@moxielogic.com> | 2009-07-01 15:45:49 +0400 |
|---|---|---|
| committer | Anthony Green <green@moxielogic.com> | 2009-07-01 15:45:49 +0400 |
| commit | 265b5faec741277f9295baf03a627f9f855af0f2 (patch) | |
| tree | 8986ea8761059bff07e85020b8ddd9c2488ecd68 /libgloss/moxie | |
| parent | 128b854b57a40f47a9a9a804c3276a01a0fb4039 (diff) | |
* moxie/crt0.S (_start): Clear BSS at startup. Register _fini()
with atexit().
* moxie/sim-open.S: Fix comment.
Diffstat (limited to 'libgloss/moxie')
| -rw-r--r-- | libgloss/moxie/crt0.S | 18 | ||||
| -rw-r--r-- | libgloss/moxie/sim-open.S | 2 |
2 files changed, 15 insertions, 5 deletions
diff --git a/libgloss/moxie/crt0.S b/libgloss/moxie/crt0.S index e7c64a68b..d413a4580 100644 --- a/libgloss/moxie/crt0.S +++ b/libgloss/moxie/crt0.S @@ -1,6 +1,6 @@ /* crt0.S -- startup file for moxie * - * Copyright (c) 2008 Anthony Green + * Copyright (c) 2008, 2009 Anthony Green * * The authors hereby grant permission to use, copy, modify, distribute, * and license this software and its documentation for any purpose, provided @@ -23,12 +23,22 @@ _start: ldi.l $fp, 0x0 /* zero fp to allow unwinders to stop */ /* zero the bss area */ - /* TODO */ - /* call memset */ + dec $sp, 12 + ldi.l $r0, __bss_start__ + ldi.l $r1, __bss_end__ + sub.l $r1, $r0 + sto.l 8($sp), $r1 + ldi.l $r1, 0 + jsra memset + inc $sp, 12 - /* Call _init to invoke static constructors, etc. */ + /* Call _init to invoke static constructors, etc. */ jsra _init + /* Call _fini at exit time for static destructors. */ + ldi.l $r0, _fini + jsra atexit + /* Set argc and argv. These are populated by the simulator. */ lda.l $r0, 0x4 ldi.l $r1, 0x8 diff --git a/libgloss/moxie/sim-open.S b/libgloss/moxie/sim-open.S index dafbe4de1..87e9b94f8 100644 --- a/libgloss/moxie/sim-open.S +++ b/libgloss/moxie/sim-open.S @@ -1,5 +1,5 @@ /* - * sim-open.S -- open interface for frv simulator + * sim-open.S -- open interface for moxie simulator * * Copyright (c) 2008 Anthony Green * |