crosstool-ng: patches/gdb/6.3/660-debian_dwarf-cfa-restore.patch@ea15433daba0

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.

     1 Status: Checked in to HEAD after 6.3.

     3 2004-11-09  Daniel Jacobowitz  <dan@debian.org>

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

     6 	size.

     8 Index: src/gdb/dwarf2-frame.c

     9 ===================================================================

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

    11 retrieving revision 1.45

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

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

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

    15 @@ -162,7 +162,7 @@ dwarf2_frame_state_alloc_regs (struct dw

    16  static struct dwarf2_frame_state_reg *

    17  dwarf2_frame_state_copy_regs (struct dwarf2_frame_state_reg_info *rs)

    18  {

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

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

    21    struct dwarf2_frame_state_reg *reg;

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

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--