* mips-tdep.c (mips_skip_mips16_trampoline_code): Sign-extend
address chunks retrieved from decoded lui/addiu pairs.
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@ -1,3 +1,9 @@
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2011-12-08 Maciej W. Rozycki <macro@mips.com>
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Maciej W. Rozycki <macro@codesourcery.com>
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* mips-tdep.c (mips_skip_mips16_trampoline_code): Sign-extend
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address chunks retrieved from decoded lui/addiu pairs.
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2011-12-08 Maciej W. Rozycki <macro@codesourcery.com>
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* mips-tdep.c (extended_offset): Correct calculation.
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@ -5356,7 +5356,6 @@ mips_skip_mips16_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
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address from those two instructions. */
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CORE_ADDR target_pc = get_frame_register_signed (frame, 2);
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ULONGEST inst;
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int i;
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/* See if the name of the target function is __fn_stub_*. */
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@ -5373,11 +5372,15 @@ mips_skip_mips16_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
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instructions. FIXME. */
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for (i = 0, pc = 0; i < 20; i++, target_pc += MIPS_INSN32_SIZE)
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{
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inst = mips_fetch_instruction (gdbarch, target_pc);
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ULONGEST inst = mips_fetch_instruction (gdbarch, target_pc);
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CORE_ADDR addr = inst;
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if ((inst & 0xffff0000) == 0x3c010000) /* lui $at */
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pc = (inst << 16) & 0xffff0000; /* high word */
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pc = (((addr & 0xffff) ^ 0x8000) - 0x8000) << 16;
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/* high word */
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else if ((inst & 0xffff0000) == 0x24210000) /* addiu $at */
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return pc | (inst & 0xffff); /* low word */
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return pc + ((addr & 0xffff) ^ 0x8000) - 0x8000;
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/* low word */
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}
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/* Couldn't find the lui/addui pair, so return stub address. */
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