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* frags.h (struct frag): Add has_code and insn_addr fields.

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* write.c (cvt_frag_to_fill): Invoke md_frag_check.
	* config/tc-ppc.c (md_assemble): Check and set insn_addr.
	* config/tc-ppc.h (md_frag_check): Define.
This commit is contained in:
Alan Modra 2004-07-02 06:40:19 +00:00
parent d205ad70f2
commit 09b935accc
5 changed files with 31 additions and 5 deletions
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7
gas/ChangeLog
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@ -1,3 +1,10 @@
2004-07-02 Alan Modra <amodra@bigpond.net.au>
* frags.h (struct frag): Add has_code and insn_addr fields.
* write.c (cvt_frag_to_fill): Invoke md_frag_check.
* config/tc-ppc.c (md_assemble): Check and set insn_addr.
* config/tc-ppc.h (md_frag_check): Define.
2004-06-28 Maciej W. Rozycki <macro@linux-mips.org>
* doc/Makefile.am (info): Rename goal to...

6
gas/config/tc-ppc.c
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@ -2091,6 +2091,7 @@ md_assemble (str)
struct ppc_fixup fixups[MAX_INSN_FIXUPS];
int fc;
char *f;
int addr_mod;
int i;
#ifdef OBJ_ELF
bfd_reloc_code_real_type reloc;
@ -2618,6 +2619,11 @@ md_assemble (str)
/* Write out the instruction. */
f = frag_more (4);
addr_mod = frag_now_fix () & 3;
if (frag_now->has_code && frag_now->insn_addr != addr_mod)
as_bad (_("instruction address is not a multiple of 4"));
frag_now->insn_addr = addr_mod;
frag_now->has_code = 1;
md_number_to_chars (f, insn, 4);
#ifdef OBJ_ELF

9
gas/config/tc-ppc.h
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@ -1,6 +1,6 @@
/* tc-ppc.h -- Header file for tc-ppc.c.
Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
2004 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support.
This file is part of GAS, the GNU Assembler.
@ -110,6 +110,11 @@ extern char *ppc_target_format PARAMS ((void));
} \
}
#define md_frag_check(FRAGP) \
if ((FRAGP)->has_code \
&& (((FRAGP)->fr_address + (FRAGP)->insn_addr) & 3) != 0) \
as_bad_where ((FRAGP)->fr_file, (FRAGP)->fr_line, \
_("instruction address is not a multiple of 4"));
#ifdef TE_PE

9
gas/frags.h
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@ -1,6 +1,6 @@
/* frags.h - Header file for the frag concept.
Copyright 1987, 1992, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001
Free Software Foundation, Inc.
Copyright 1987, 1992, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001,
2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
@ -74,6 +74,11 @@ struct frag {
fr_address has been adjusted. */
unsigned int relax_marker:1;
/* Used to ensure that all insns are emitted on proper address
boundaries. */
unsigned int has_code:1;
unsigned int insn_addr:6;
/* What state is my tail in? */
relax_stateT fr_type;
relax_substateT fr_subtype;

5
gas/write.c
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@ -1,6 +1,6 @@
/* write.c - emit .o file
Copyright 1986, 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
1998, 1999, 2000, 2001, 2002, 2003
1998, 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
@ -616,6 +616,9 @@ cvt_frag_to_fill (object_headers *headersP, segT sec, fragS *fragP)
BAD_CASE (fragP->fr_type);
break;
}
#ifdef md_frag_check
md_frag_check (fragP);
#endif
}
#endif /* defined (BFD_ASSEMBLER) || !defined (BFD) */