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| author | Andreas Schwab <schwab@linux-m68k.org> | 2001-05-08 18:03:27 +0000 |
|---|---|---|
| committer | Andreas Schwab <schwab@linux-m68k.org> | 2001-05-08 18:03:27 +0000 |
| commit | 8390138c6bd7b78827ebc79a56f65df402df7ecc (patch) | |
| tree | a06b65722f6874692b06623479f469a8b30750c8 /gas/config/tc-m68k.c | |
| parent | 8e191bd38c2b1af169a1feef527753fb9791706a (diff) | |
| download | gdb-8390138c6bd7b78827ebc79a56f65df402df7ecc.zip gdb-8390138c6bd7b78827ebc79a56f65df402df7ecc.tar.gz gdb-8390138c6bd7b78827ebc79a56f65df402df7ecc.tar.bz2 | |
* config/tc-m68k.c: Instead of replacing -1 by 64 in assignment to
fx_pcrel_adjust explicitly sign extend when reading it.
Diffstat (limited to 'gas/config/tc-m68k.c')
| -rw-r--r-- | gas/config/tc-m68k.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/gas/config/tc-m68k.c b/gas/config/tc-m68k.c index a755285..8451c2f 100644 --- a/gas/config/tc-m68k.c +++ b/gas/config/tc-m68k.c @@ -968,8 +968,9 @@ tc_gen_reloc (section, fixp) reloc->addend = fixp->fx_addnumber; else reloc->addend = (section->vma - + (fixp->fx_pcrel_adjust == 64 - ? -1 : fixp->fx_pcrel_adjust) + /* Explicit sign extension in case char is + unsigned. */ + + ((fixp->fx_pcrel_adjust & 0xff) ^ 0x80) - 0x80 + fixp->fx_addnumber + md_pcrel_from (fixp)); #endif @@ -2546,11 +2547,7 @@ m68k_ip (instring) switch (s[1]) { case 'B': - /* The pc_fix argument winds up in fx_pcrel_adjust, - which is a char, and may therefore be unsigned. We - want to pass -1, but we pass 64 instead, and convert - back in md_pcrel_from. */ - add_fix ('B', &opP->disp, 1, 64); + add_fix ('B', &opP->disp, 1, -1); break; case 'W': add_fix ('w', &opP->disp, 1, 0); @@ -7041,9 +7038,9 @@ md_pcrel_from (fixP) { int adjust; - /* Because fx_pcrel_adjust is a char, and may be unsigned, we store - -1 as 64. */ - adjust = fixP->fx_pcrel_adjust; + /* Because fx_pcrel_adjust is a char, and may be unsigned, we explicitly + sign extend the value here. */ + adjust = ((fixP->fx_pcrel_adjust & 0xff) ^ 0x80) - 0x80; if (adjust == 64) adjust = -1; return fixP->fx_where + fixP->fx_frag->fr_address - adjust; |