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patches/gdb/6.3/660-debian_dwarf-cfa-restore.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun May 20 13:48:26 2007 +0000 (2007-05-20)
changeset 112 ea15433daba0
permissions -rw-r--r--
Ah! I finally have a progress bar that doesn't stall the build!
- pipe size in Linux is only 8*512=4096 bytes
- pipe size is not setable
- when the feeding process spits out data faster than the eating
process can read it, then the feeding process stalls after 4KiB
of data sent to the pipe
- for us, the progress bar would spawn a sub-shell every line,
and the sub-shell would in turn spawn a 'date' command.
Which was sloooww as hell, and would cause some kind of a
starvation: the pipe was full most of the time, and the
feeding process was stalled all this time.

Now, we use internal variables and a little hack based onan offset
to determine the elapsed time. Much faster this way, but still
CPU-intensive.
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Status: Checked in to HEAD after 6.3.
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2004-11-09  Daniel Jacobowitz  <dan@debian.org>







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	* dwarf2-frame.c (dwarf2_frame_state_alloc_regs): Correct allocated







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	size.







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Index: src/gdb/dwarf2-frame.c







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===================================================================







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RCS file: /cvs/src/src/gdb/dwarf2-frame.c,v







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retrieving revision 1.45







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diff -u -p -r1.45 dwarf2-frame.c







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--- src/gdb/dwarf2-frame.c	7 Nov 2004 21:16:11 -0000	1.45







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+++ src/gdb/dwarf2-frame.c	9 Nov 2004 14:42:52 -0000







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@@ -162,7 +162,7 @@ dwarf2_frame_state_alloc_regs (struct dw







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 static struct dwarf2_frame_state_reg *







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 dwarf2_frame_state_copy_regs (struct dwarf2_frame_state_reg_info *rs)







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 {







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-  size_t size = rs->num_regs * sizeof (struct dwarf2_frame_state_reg_info);







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+  size_t size = rs->num_regs * sizeof (struct dwarf2_frame_state_reg);







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   struct dwarf2_frame_state_reg *reg;







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   reg = (struct dwarf2_frame_state_reg *) xmalloc (size);












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