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* arm-tdep.c (thumb_analyze_prologue): Always fallback on the SP
register when the frame can't be determined.
* arm-tdep.c (arm_analyze_prologue): Ditto.

gdb/testsuite/
* gdb.arch/thumb-prologue.c (switch_stack_to_same): New test function.
(switch_stack_to_other): New test function.
* gdb.arch/thumb-prologue.exp: New test cases.
This commit is contained in:
Meador Inge
2011-11-09 00:53:40 +00:00
parent 6a12077df4
commit 72a2e3dcf5
5 changed files with 75 additions and 14 deletions
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16
gdb/arm-tdep.c
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@@ -1152,18 +1152,12 @@ thumb_analyze_prologue (struct gdbarch *gdbarch,
cache->framereg = THUMB_FP_REGNUM;
cache->framesize = -regs[THUMB_FP_REGNUM].k;
}
else if (pv_is_register (regs[ARM_SP_REGNUM], ARM_SP_REGNUM))
else
{
/* Try the stack pointer... this is a bit desperate. */
cache->framereg = ARM_SP_REGNUM;
cache->framesize = -regs[ARM_SP_REGNUM].k;
}
else
{
/* We're just out of luck. We don't know where the frame is. */
cache->framereg = -1;
cache->framesize = 0;
}
for (i = 0; i < 16; i++)
if (pv_area_find_reg (stack, gdbarch, i, &offset))
@@ -1883,18 +1877,12 @@ arm_analyze_prologue (struct gdbarch *gdbarch,
framereg = ARM_FP_REGNUM;
framesize = -regs[ARM_FP_REGNUM].k;
}
else if (pv_is_register (regs[ARM_SP_REGNUM], ARM_SP_REGNUM))
else
{
/* Try the stack pointer... this is a bit desperate. */
framereg = ARM_SP_REGNUM;
framesize = -regs[ARM_SP_REGNUM].k;
}
else
{
/* We're just out of luck. We don't know where the frame is. */
framereg = -1;
framesize = 0;
}
if (cache)
{