* mips-tdep.c (mips32_heuristic_proc_desc): Clear temp_saved_regs
on restart. Fixes problem with backtracing through functions that use virtual frame pointers.
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0e52a532e4
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@ -1,5 +1,14 @@
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Sat Dec 19 09:55:09 1998 Stu Grossman <grossman@babylon-5.cygnus.com>
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* mips-tdep.c (mips32_heuristic_proc_desc): Clear temp_saved_regs
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on restart. Fixes problem with backtracing through functions that
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use virtual frame pointers.
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Fri Dec 18 14:23:34 1998 Andrew Cagney <cagney@chook>
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* mips-tdep.c (mips_push_arguments): Don't left-shift small
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structs being passed in a register when an O64 target.
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* config/mips/tm-mips.h (enum mips_fpu_type, mips_fpu): Move to
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mips-tdep.c.
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@ -1442,6 +1442,7 @@ mips32_heuristic_proc_desc(start_pc, limit_pc, next_frame, sp)
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CORE_ADDR cur_pc;
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CORE_ADDR frame_addr = 0; /* Value of $r30. Used by gcc for frame-pointer */
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restart:
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memset (&temp_saved_regs, '\0', sizeof(struct frame_saved_regs));
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PROC_FRAME_OFFSET(&temp_proc_desc) = 0;
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PROC_FRAME_ADJUST (&temp_proc_desc) = 0; /* offset of FP from SP */
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for (cur_pc = start_pc; cur_pc < limit_pc; cur_pc += MIPS_INSTLEN)
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@ -1990,13 +1991,15 @@ mips_push_arguments(nargs, args, sp, struct_return, struct_addr)
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It does not seem to be necessary to do the
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same for integral types.
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Also don't do this adjustment on EABI targets. */
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Also don't do this adjustment on EABI and O64
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binaries. */
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if (!MIPS_EABI &&
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TARGET_BYTE_ORDER == BIG_ENDIAN &&
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partial_len < MIPS_REGSIZE &&
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(typecode == TYPE_CODE_STRUCT ||
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typecode == TYPE_CODE_UNION))
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if (!MIPS_EABI
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&& (MIPS_REGSIZE < 8)
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&& TARGET_BYTE_ORDER == BIG_ENDIAN
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&& (partial_len < MIPS_REGSIZE)
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&& (typecode == TYPE_CODE_STRUCT ||
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typecode == TYPE_CODE_UNION))
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regval <<= ((MIPS_REGSIZE - partial_len) *
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TARGET_CHAR_BIT);
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