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arm_addr_bits_remove: Stop believing in the existence of 26-bit Thumb. 

arm_frame_saved_pc: Use arm_addr_bits_remove to strip the retrieved PC.

These seem to make stack backtraces work on arm26.
This commit is contained in:
bjh21 2001-10-20 16:57:42 +00:00
parent a9ec452d57
commit f3da28335b
1 changed files with 6 additions and 4 deletions
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10
gnu/dist/toolchain/gdb/arm-tdep.c vendored
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@ -270,10 +270,12 @@ arm_pc_is_thumb_dummy (bfd_vma memaddr)
CORE_ADDR CORE_ADDR
arm_addr_bits_remove (CORE_ADDR val) arm_addr_bits_remove (CORE_ADDR val)
{ {
if (arm_pc_is_thumb (val)) if (arm_apcs_32)
return (val & (arm_apcs_32 ? 0xfffffffe : 0x03fffffe)); return (val & 0x03fffffc);
else if (arm_pc_is_thumb (val))
return (val & 0xfffffffe);
else else
return (val & (arm_apcs_32 ? 0xfffffffc : 0x03fffffc)); return (val & 0xfffffffc);
} }
CORE_ADDR CORE_ADDR
@ -1019,7 +1021,7 @@ arm_frame_saved_pc (struct frame_info *fi)
#endif #endif
{ {
CORE_ADDR pc = arm_find_callers_reg (fi, LR_REGNUM); CORE_ADDR pc = arm_find_callers_reg (fi, LR_REGNUM);
return IS_THUMB_ADDR (pc) ? UNMAKE_THUMB_ADDR (pc) : pc; return arm_addr_bits_remove(pc);
} }
} }