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| author | Jeff Law <law@redhat.com> | 1997-02-11 19:31:29 +0000 |
|---|---|---|
| committer | Jeff Law <law@redhat.com> | 1997-02-11 19:31:29 +0000 |
| commit | 25de138b06f6cea850bfe352a6b3e00fbf60fd87 (patch) | |
| tree | b692c0e5d330c42f6ed1a9b6c025bb6a2e88f877 /gdb/mn10200-tdep.c | |
| parent | f9114af581291362a099dacdad35499bbe0aa400 (diff) | |
| download | gdb-25de138b06f6cea850bfe352a6b3e00fbf60fd87.zip gdb-25de138b06f6cea850bfe352a6b3e00fbf60fd87.tar.gz gdb-25de138b06f6cea850bfe352a6b3e00fbf60fd87.tar.bz2 | |
* mn10200-tdep.c (mn10200_push_arguments): Stack only needs to
be two byte aligned. Round argument sizes up to two byte boundary.
Write out args in two byte hunks.
(mn10200_push_return_address): Implement.
* config/mn10200/tm-mn10200.h (EXTRACT_RETURN_VALUE): Abort for
structures > 8 bytes (temporary).
(STORE_RETURN_VALUE): Likewise.
(CALL_DUMMY): No longer undefine.
(USE_STRUCT_CONVENTION): Use for args > 8 bytes.
(REG_STRUCT_HAS_ADDR): Define.
Inferior function calls for the mn10200.
Diffstat (limited to 'gdb/mn10200-tdep.c')
| -rw-r--r-- | gdb/mn10200-tdep.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/gdb/mn10200-tdep.c b/gdb/mn10200-tdep.c index 11c03e9..8c3812d 100644 --- a/gdb/mn10200-tdep.c +++ b/gdb/mn10200-tdep.c @@ -530,15 +530,15 @@ mn10200_push_arguments (nargs, args, sp, struct_return, struct_addr) int stack_offset = 0; /* This should be a nop, but align the stack just in case something - went wrong. */ - sp &= ~3; + went wrong. Stacks are two byte aligned on the mn10200. */ + sp &= ~1; /* Now make space on the stack for the args. XXX This doesn't appear to handle pass-by-invisible reference arguments. */ for (argnum = 0; argnum < nargs; argnum++) - len += ((TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 3) & ~3); + len += ((TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 1) & ~1); /* Allocate stack space. */ sp -= len; @@ -567,11 +567,11 @@ mn10200_push_arguments (nargs, args, sp, struct_return, struct_addr) while (len > 0) { /* XXX This looks wrong; we can have one and two byte args. */ - write_memory (sp + stack_offset, val, 4); + write_memory (sp + stack_offset, val, 2); - len -= 4; - val += 4; - stack_offset += 4; + len -= 2; + val += 2; + stack_offset += 2; } args++; } @@ -588,8 +588,11 @@ mn10200_push_return_address (pc, sp) CORE_ADDR pc; CORE_ADDR sp; { + unsigned char buf[4]; - return sp; + store_unsigned_integer (buf, 4, CALL_DUMMY_ADDRESS ()); + write_memory (sp - 4, buf, 4); + return sp - 4; } /* Function: frame_saved_pc |