diff options
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/mips-tdep.c | 25 |
2 files changed, 21 insertions, 9 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index a8383fe..b63a6cd 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +Mon Jun 30 15:30:38 1997 Michael Snyder (msnyder@cleaver.cygnus.com) + + * mips-tdep.c (mips_push_arguments): tweak alignment of small + structs passed in registers for little-endian non-EABI mode. + Mon Jun 30 13:05:39 1997 Michael Snyder (msnyder@cleaver.cygnus.com) * breakpoint.c (frame_in_dummy): use generic dummy if available. diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c index dfca27a..e08be0f 100644 --- a/gdb/mips-tdep.c +++ b/gdb/mips-tdep.c @@ -1349,15 +1349,23 @@ mips_push_arguments(nargs, args, sp, struct_return, struct_addr) { CORE_ADDR regval = extract_address (val, partial_len); - /* It's a simple argument being passed in a general - register. - If the argument length is smaller than the register size, - we have to adjust the argument on big endian targets. + /* A simple argument being passed in a general register. + If the length is smaller than the register size, we + have to adjust the alignment on big endian targets. + + For structs, it appears that we have to + do the same even in little endian mode. + But don't do this adjustment on EABI targets. */ - if (TARGET_BYTE_ORDER == BIG_ENDIAN - && partial_len < MIPS_REGSIZE - && !MIPS_EABI) - regval <<= ((MIPS_REGSIZE - partial_len) * TARGET_CHAR_BIT); + + if (!MIPS_EABI && + TYPE_LENGTH (arg_type) < MIPS_REGSIZE && + (TARGET_BYTE_ORDER == BIG_ENDIAN || + typecode == TYPE_CODE_STRUCT || + typecode == TYPE_CODE_UNION)) + regval <<= ((MIPS_REGSIZE - partial_len) * + TARGET_CHAR_BIT); + write_register (argreg, regval); argreg++; @@ -1384,7 +1392,6 @@ mips_push_arguments(nargs, args, sp, struct_return, struct_addr) typecode == TYPE_CODE_UNION) && len < MIPS_REGSIZE) longword_offset = MIPS_REGSIZE - len; - write_memory (sp + stack_offset + longword_offset, val, partial_len); stack_offset += ROUND_UP (partial_len, MIPS_REGSIZE); |