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Add -mcom support.

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This commit is contained in:
Michael Meissner 1995-10-16 02:09:01 +00:00
parent cd8a3d845b
commit 4c2935f4c0
2 changed files with 45 additions and 11 deletions
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15
gas/ChangeLog
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@ -1,3 +1,18 @@
Sun Oct 15 22:06:14 1995 Michael Meissner <meissner@cygnus.com>
* config/tc-ppc.c (md_parse_option): Support for -mcom to turn on
common mode operation.
(md_show_usage): Add -mcom to usage message.
(md_begin): If the target CPU is common mode, only allow
instructions in both architectures.
Fri Oct 13 13:32:45 1995 steve chamberlain <sac@slash.cygnus.com>
* expr.c (op_rank): Add O_symbol_rva.
* expr.h (operatorT): Add O_symbol_rva.
* read.c (cons_worker): Set O_symbol_rva when necessary.
* write.c (fix_new_exp): Understand O_symbol_rva.
Tue Oct 10 11:34:14 1995 Ian Lance Taylor <ian@cygnus.com>
* config/tc-mips.c: Correct s_cons arguments. From Michael

41
gas/config/tc-ppc.c
View file

@ -582,6 +582,10 @@ md_parse_option (c, arg)
ppc_cpu = PPC_OPCODE_PPC;
ppc_size = PPC_OPCODE_64;
}
/* -mcom means assemble for the common intersection between Power
and PowerPC. */
else if (strcmp (arg, "com") == 0)
ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_PPC;
/* -many means to assemble for any architecture (PWR/PWRX/PPC). */
else if (strcmp (arg, "any") == 0)
ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_PPC;
@ -656,6 +660,7 @@ PowerPC options:\n\
-mppc, -mppc32, -m403, -m603, -m604\n\
generate code for Motorola PowerPC 603/604\n\
-mppc64, -m620 generate code for Motorola PowerPC 620\n\
-mcom generate code Power/PowerPC common instructions\n
-many generate code for any architecture (PWR/PWRX/PPC)\n");
#ifdef OBJ_ELF
fprintf(stream, "\
@ -737,7 +742,10 @@ md_begin ()
if ((op->flags & ppc_cpu) != 0
&& ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
|| (op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == ppc_size))
|| (op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == ppc_size)
/* If -mcom, check for instructions not in both Power/PowerPC */
&& (ppc_cpu != (PPC_OPCODE_POWER | PPC_OPCODE_PPC)
|| (op->flags & (PPC_OPCODE_POWER | PPC_OPCODE_PPC)) == ppc_cpu))
{
const char *retval;
@ -1648,7 +1656,7 @@ ppc_macro (str, macro)
const struct powerpc_macro *macro;
{
char *operands[10];
int count;
unsigned int count;
char *s;
unsigned int len;
const char *format;
@ -2342,18 +2350,19 @@ ppc_biei (ei)
name = demand_copy_C_string (&len);
/* The value of these symbols is actually file offset. Here we set
the value to the index into the line number entries. In
ppc_frob_symbols we set the fix_line field, which will cause BFD
to do the right thing. */
sym = symbol_make (name);
S_SET_SEGMENT (sym, ppc_coff_debug_section);
S_SET_SEGMENT (sym, now_seg);
S_SET_VALUE (sym, coff_n_line_nos);
sym->bsym->flags |= BSF_DEBUGGING;
/* FIXME: The value of the .bi or .ei symbol is supposed to be the
offset in the file to the line number entry to use. That is
quite difficult to implement using BFD, so I'm just not doing it.
Sorry. Please add it if you can figure out how. Note that this
approach is the only way to support multiple files in COFF, since
line numbers are associated with function symbols. Note further
that it still doesn't work, since the line numbers are stored as
offsets from a base line number. */
/* obj-coff.c currently only handles line numbers correctly in the
.text section. */
assert (now_seg == text_section);
S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
sym->sy_tc.output = 1;
@ -3431,6 +3440,8 @@ ppc_frob_symbol (sym)
&& S_GET_STORAGE_CLASS (sym) != C_FCN
&& S_GET_STORAGE_CLASS (sym) != C_BSTAT
&& S_GET_STORAGE_CLASS (sym) != C_ESTAT
&& S_GET_STORAGE_CLASS (sym) != C_BINCL
&& S_GET_STORAGE_CLASS (sym) != C_EINCL
&& S_GET_SEGMENT (sym) != ppc_coff_debug_section)
S_SET_STORAGE_CLASS (sym, C_HIDEXT);
@ -3575,6 +3586,14 @@ ppc_frob_symbol (sym)
resolve_symbol_value (csect);
S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
}
else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
|| S_GET_STORAGE_CLASS (sym) == C_EINCL)
{
/* We want the value to be a file offset into the line numbers.
BFD will do that for us if we set the right flags. We have
already set the value correctly. */
coffsymbol (sym->bsym)->native->fix_line = 1;
}
return 0;
}