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Viewing changes to ia64.s

  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2007-09-04 16:01:17 UTC
  • mfrom: (1.1.8 upstream)
  • Revision ID: james.westby@ubuntu.com-20070904160117-i15zckg2nhxe9fyw
Tags: 1.9.0+20070830-2ubuntu1
* Sync from Debian; remaining changes:
  - Add -g to CFLAGS.
* Fixes build failure on ia64.
* Fixes build failure with gcc-4.2 on lpia.
* Robustify check for target_os, fixing build failure on lpia.
* Set Ubuntu maintainer address.

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ia64.s
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//   void rb_ia64_flushrs(void) { __builtin_ia64_flushrs(); }
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//   void *rb_ia64_bsp(void) { return __builtin_ia64_bsp(); }
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// 
 
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// Note that rb_ia64_flushrs and rb_ia64_bsp works in its own stack frame.
 
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// It's because BSP is updated by br.call/brl.call (not alloc instruction).
 
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// So rb_ia64_flushrs flushes stack frames including caller's one.
 
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// rb_ia64_bsp returns the address next to caller's register stack frame. 
 
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//
 
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// See also
 
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// Intel Itanium Architecture Software Developer's Manual
 
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// Volume 2: System Architecture.
 
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//
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        .file   "ia64.c"
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        .text
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        .align 16