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| author | Andrew Stubbs <andrew.stubbs@st.com> | 2008-04-15 15:53:26 +0000 |
|---|---|---|
| committer | Andrew Stubbs <andrew.stubbs@st.com> | 2008-04-15 15:53:26 +0000 |
| commit | 52b5ca5b35537a5081916c09c8238beae153ae29 (patch) | |
| tree | 5d6dd72195cf2f50454e5d159d203c2f31cadd57 /gas/config/tc-sh.c | |
| parent | 18ac113bcca70c9d886dbdeefd660836ab6c5bf6 (diff) | |
| download | gdb-52b5ca5b35537a5081916c09c8238beae153ae29.zip gdb-52b5ca5b35537a5081916c09c8238beae153ae29.tar.gz gdb-52b5ca5b35537a5081916c09c8238beae153ae29.tar.bz2 | |
2008-04-15 Andrew Stubbs <andrew.stubbs@st.com>
gas/
* config/tc-sh.c (md_apply_fix): Make sure BFD_RELOC_SH_PCRELIMM8BY4
relocations are properly aligned, and not negative.
gas/testsuite/
* gas/sh/arch/arch.exp: Align PC-relative instructions in the gererated
assembly files.
* gas/sh/arch/sh-dsp.s: Regenerate.
* gas/sh/arch/sh.s: Regenerate.
* gas/sh/arch/sh2.s: Regenerate.
* gas/sh/arch/sh2a-nofpu-or-sh3-nommu.s: Regenerate.
* gas/sh/arch/sh2a-nofpu-or-sh4-nommu-nofpu.s: Regenerate.
* gas/sh/arch/sh2a-nofpu.s: Regenerate.
* gas/sh/arch/sh2a-or-sh3e.s: Regenerate.: Regenerate.
* gas/sh/arch/sh2a-or-sh4.s: Regenerate.
* gas/sh/arch/sh2a.s: Regenerate.
* gas/sh/arch/sh2e.s: Regenerate.
* gas/sh/arch/sh3-dsp.s: Regenerate.
* gas/sh/arch/sh3-nommu.s: Regenerate.
* gas/sh/arch/sh3.s: Regenerate.
* gas/sh/arch/sh3e.s: Regenerate.
* gas/sh/arch/sh4-nofpu.s: Regenerate.
* gas/sh/arch/sh4-nommu-nofpu.s: Regenerate.
* gas/sh/arch/sh4.s: Regenerate.
* gas/sh/arch/sh4a-nofpu.s: Regenerate.
* gas/sh/arch/sh4a.s: Regenerate.
* gas/sh/arch/sh4al-dsp.s: Regenerate.
* gas/sh/err-mova.s: New test.
ld/testsuite/
* ld-sh/arch/sh-dsp.s: Regenerate.
* ld-sh/arch/sh.s: Regenerate.
* ld-sh/arch/sh2.s: Regenerate.
* ld-sh/arch/sh2a-nofpu-or-sh3-nommu.s: Regenerate.
* ld-sh/arch/sh2a-nofpu-or-sh4-nommu-nofpu.s: Regenerate.
* ld-sh/arch/sh2a-nofpu.s: Regenerate.
* ld-sh/arch/sh2a-or-sh3e.s: Regenerate.: Regenerate.
* ld-sh/arch/sh2a-or-sh4.s: Regenerate.
* ld-sh/arch/sh2a.s: Regenerate.
* ld-sh/arch/sh2e.s: Regenerate.
* ld-sh/arch/sh3-dsp.s: Regenerate.
* ld-sh/arch/sh3-nommu.s: Regenerate.
* ld-sh/arch/sh3.s: Regenerate.
* ld-sh/arch/sh3e.s: Regenerate.
* ld-sh/arch/sh4-nofpu.s: Regenerate.
* ld-sh/arch/sh4-nommu-nofpu.s: Regenerate.
* ld-sh/arch/sh4.s: Regenerate.
* ld-sh/arch/sh4a-nofpu.s: Regenerate.
* ld-sh/arch/sh4a.s: Regenerate.
* ld-sh/arch/sh4al-dsp.s: Regenerate.
Diffstat (limited to 'gas/config/tc-sh.c')
| -rw-r--r-- | gas/config/tc-sh.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gas/config/tc-sh.c b/gas/config/tc-sh.c index 0d098d2..ac6e17f 100644 --- a/gas/config/tc-sh.c +++ b/gas/config/tc-sh.c @@ -4018,6 +4018,23 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) break; case BFD_RELOC_SH_PCRELIMM8BY4: + /* If we are dealing with a known destination ... */ + if ((fixP->fx_addsy == NULL || S_IS_DEFINED (fixP->fx_addsy)) + && (fixP->fx_subsy == NULL || S_IS_DEFINED (fixP->fx_addsy))) + { + /* Don't silently move the destination due to misalignment. + The absolute address is the fragment base plus the offset into + the fragment plus the pc relative offset to the label. */ + if ((fixP->fx_frag->fr_address + fixP->fx_where + val) & 3) + as_bad_where (fixP->fx_file, fixP->fx_line, + _("offset to unaligned destination")); + + /* The displacement cannot be zero or backward even if aligned. + Allow -2 because val has already been adjusted somewhere. */ + if (val < -2) + as_bad_where (fixP->fx_file, fixP->fx_line, _("negative offset")); + } + /* The lower two bits of the PC are cleared before the displacement is added in. We can assume that the destination is on a 4 byte boundary. If this instruction is also on a 4 |