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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-06-08 18:10:55 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-06-08 18:10:55 +0000 |
| commit | c626aec4434149e17e4cd98174e59095a3a06e05 (patch) | |
| tree | 7c1b6cbe99bb7af241fce8d7455181d9c025b73c /nuttx/arch/avr/src/at90usb/at90usb_head.S | |
| parent | 583f057b1912513fce544714949e29fbe8bdf253 (diff) | |
| download | px4-nuttx-c626aec4434149e17e4cd98174e59095a3a06e05.tar.gz px4-nuttx-c626aec4434149e17e4cd98174e59095a3a06e05.tar.bz2 px4-nuttx-c626aec4434149e17e4cd98174e59095a3a06e05.zip | |
More AVR context switching logic
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3683 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/avr/src/at90usb/at90usb_head.S')
| -rwxr-xr-x | nuttx/arch/avr/src/at90usb/at90usb_head.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/nuttx/arch/avr/src/at90usb/at90usb_head.S b/nuttx/arch/avr/src/at90usb/at90usb_head.S index 16d4abcc1..f951bac1d 100755 --- a/nuttx/arch/avr/src/at90usb/at90usb_head.S +++ b/nuttx/arch/avr/src/at90usb/at90usb_head.S @@ -193,6 +193,9 @@ __start: /* Copy initial global data values from FLASH into RAM */
+ .global __do_copy_data; /* Required to suppress dragging in logic from libgcc */
+__do_copy_data:
+
#ifdef HAVE_RAMPZ
ldi r17, hi8(_edata)
ldi r26, lo8(_sdata)
@@ -230,6 +233,9 @@ __start: /* Clear uninitialized data */
+ .global __do_clear_bss; /* Required to suppress dragging in logic from libgcc */
+__do_clear_bss:
+
ldi r17, hi8(_ebss)
ldi r26, lo8(_sbss)
ldi r27, hi8(_sbss)
|