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Author SHA1 Message Date
Ken Werner fd21d07fe4 Create a generic and local variant of the extbl parser. 
In order to have the DWARF_* macros working properly a generic and a local
variant of the ex_tables.c have been created.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-04-05 20:59:10 -07:00
Ken Werner dcb8d0d90f Prefer to unwind using DWARF info on ARM. 
DWARF expressions are more powerful than the ARM specific unwind tables.
Therefore DWARF should be the preferred unwind method.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-24 20:44:33 -07:00
Ken Werner cf8d5e41af Have the ARM extbtl-parser operate on the DWARF model directly. 
This eliminates the arm_stackframe and therefore the need to synchronize the
two models. It also clears the way for unwinding call stacks with mixed
DWARF- and extbl-frames.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-24 20:42:00 -07:00
Zachary T Welch 6a67154674 Use ARM-specific unwinding tables in unw_step 
Uses ex_tables routines to provide a new means of unwinding the stack.
Set UNW_ARM_UNWIND_METHOD=4 to use ARM-specific unwinding tables.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
 2011-03-22 08:14:58 -07:00
Arun Sharma 00aed9631b Add an experimental and optional frame chain unwinding for ARM 
The environment variable UNW_ARM_UNWIND_METHOD controls the unwind method.

1 - debug_frame unwinding
2 - frame chain unwinding,
3 - 1 & 2 (default))

Signed-off-by: Andris Zeila <andris.zeila@accenture.com>
 2010-05-26 19:28:44 -07:00
Daniel Jacobowitz 3842dac733 Add initial ARM and MIPS support. To support this, also enable the 
reading of .debug_frame sections (used in lieu of .eh_frame sections
when they're not available).
 2008-02-04 17:16:37 -07:00