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ARM: Return the dwarf.cfa in case the user requests SP/R13.

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Usually we don't have a valid location for the SP but we keep calculating
the value of the CFA. The ARM backend should return this value instead.

Signed-off-by: Ken Werner <ken.werner@linaro.org>
This commit is contained in:
Ken Werner 2011-03-23 15:55:05 +00:00 • committed by Arun Sharma
parent f053677198
commit 0f9937485e
1 changed files with 1 additions and 1 deletions
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src/arm/Gregs.c
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@ -45,12 +45,12 @@ tdep_access_reg (struct cursor *c, unw_regnum_t reg, unw_word_t *valp,
case UNW_ARM_R10: case UNW_ARM_R10:
case UNW_ARM_R11: case UNW_ARM_R11:
case UNW_ARM_R12: case UNW_ARM_R12:
case UNW_ARM_R13:
case UNW_ARM_R14: case UNW_ARM_R14:
case UNW_ARM_R15: case UNW_ARM_R15:
loc = c->dwarf.loc[reg - UNW_ARM_R0]; loc = c->dwarf.loc[reg - UNW_ARM_R0];
break; break;
case UNW_ARM_R13:
case UNW_ARM_CFA: case UNW_ARM_CFA:
if (write) if (write)
return -UNW_EREADONLYREG; return -UNW_EREADONLYREG;