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| author | Ian Lance Taylor <ian@airs.com> | 1993-10-26 21:58:41 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@airs.com> | 1993-10-26 21:58:41 +0000 |
| commit | f3751617c3f3f34e1edbbf0dc4b8650aad66e8cf (patch) | |
| tree | c1339b32673863f30130d4418ff12fe51c12e30f | |
| parent | 56a2f3410f287967a3b7a6dc38ca1466090281e9 (diff) | |
| download | gdb-f3751617c3f3f34e1edbbf0dc4b8650aad66e8cf.zip gdb-f3751617c3f3f34e1edbbf0dc4b8650aad66e8cf.tar.gz gdb-f3751617c3f3f34e1edbbf0dc4b8650aad66e8cf.tar.bz2 | |
* config/tc-m68k.c (md_apply_fix_2): Error if a short branch uses
an illegal offset of 0 or -1.
| -rw-r--r-- | gas/ChangeLog | 3 | ||||
| -rw-r--r-- | gas/config/tc-m68k.c | 12 |
2 files changed, 14 insertions, 1 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 0f66520..1d60a2d 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,8 @@ Tue Oct 26 16:58:36 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com) + * config/tc-m68k.c (md_apply_fix_2): Error if a short branch uses + an illegal offset of 0 or -1. + * config/obj-elf.c (obj_elf_init_stab_section): Align .stab section to a longword boundary. diff --git a/gas/config/tc-m68k.c b/gas/config/tc-m68k.c index 5fe9ff9..0e9ddbe 100644 --- a/gas/config/tc-m68k.c +++ b/gas/config/tc-m68k.c @@ -4032,7 +4032,17 @@ md_apply_fix_2 (fixP, val) upper_limit = upper_limit * 2 + 1; if ((unsigned) val > upper_limit && (val > 0 || val < lower_limit)) - as_bad ("value out of range"); + as_bad_where (fixP->fx_file, fixP->fx_line, "value out of range"); + + /* A one byte PC-relative reloc means a short branch. We can't use + a short branch with a value of 0 or -1, because those indicate + different opcodes (branches with longer offsets). */ + if (fixP->fx_pcrel + && fixP->fx_size == 1 + && (fixP->fx_addsy == NULL + || S_IS_DEFINED (fixP->fx_addsy)) + && (val == 0 || val == -1)) + as_bad_where (fixP->fx_file, fixP->fx_line, "invalid byte branch offset"); } #ifdef BFD_ASSEMBLER |