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x86: Display default x86-specific options for "as --help"

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* config/tc-i386.c (md_show_usage): Display default options.
This commit is contained in:
H.J. Lu
2018-08-09 09:48:12 -07:00
parent 5ff2bbae19
commit 7c5c05effd
2 changed files with 31 additions and 12 deletions
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4
gas/ChangeLog
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@ -1,3 +1,7 @@
2018-08-09 H.J. Lu <hongjiu.lu@intel.com>
* config/tc-i386.c (md_show_usage): Display default options.
2018-08-07 James Patrick Conlon <cptjustice@gmail.com>
Nick Clifton <nickc@redhat.com>

39
gas/config/tc-i386.c
View File

@ -11152,28 +11152,38 @@ md_show_usage (FILE *stream)
fprintf (stream, _("\
-msse2avx encode SSE instructions with VEX prefix\n"));
fprintf (stream, _("\
-msse-check=[none|error|warning]\n\
-msse-check=[none|error|warning] (default: warning)\n\
check SSE instructions\n"));
fprintf (stream, _("\
-moperand-check=[none|error|warning]\n\
-moperand-check=[none|error|warning] (default: warning)\n\
check operand combinations for validity\n"));
fprintf (stream, _("\
-mavxscalar=[128|256] encode scalar AVX instructions with specific vector\n\
-mavxscalar=[128|256] (default: 128)\n\
encode scalar AVX instructions with specific vector\n\
length\n"));
fprintf (stream, _("\
-mevexlig=[128|256|512] encode scalar EVEX instructions with specific vector\n\
-mevexlig=[128|256|512] (default: 128)\n\
encode scalar EVEX instructions with specific vector\n\
length\n"));
fprintf (stream, _("\
-mevexwig=[0|1] encode EVEX instructions with specific EVEX.W value\n\
-mevexwig=[0|1] (default: 0)\n\
encode EVEX instructions with specific EVEX.W value\n\
for EVEX.W bit ignored instructions\n"));
fprintf (stream, _("\
-mevexrcig=[rne|rd|ru|rz]\n\
-mevexrcig=[rne|rd|ru|rz] (default: rne)\n\
encode EVEX instructions with specific EVEX.RC value\n\
for SAE-only ignored instructions\n"));
fprintf (stream, _("\
-mmnemonic=[att|intel] use AT&T/Intel mnemonic\n"));
-mmnemonic=[att|intel] "));
if (SYSV386_COMPAT)
fprintf (stream, _("(default: att)\n"));
else
fprintf (stream, _("(default: intel)\n"));
fprintf (stream, _("\
-msyntax=[att|intel] use AT&T/Intel syntax\n"));
use AT&T/Intel mnemonic\n"));
fprintf (stream, _("\
-msyntax=[att|intel] (default: att)\n\
use AT&T/Intel syntax\n"));
fprintf (stream, _("\
-mindex-reg support pseudo index registers\n"));
fprintf (stream, _("\
@ -11187,17 +11197,22 @@ md_show_usage (FILE *stream)
-mbig-obj generate big object files\n"));
#endif
fprintf (stream, _("\
-momit-lock-prefix=[no|yes]\n\
-momit-lock-prefix=[no|yes] (default: no)\n\
strip all lock prefixes\n"));
fprintf (stream, _("\
-mfence-as-lock-add=[no|yes]\n\
-mfence-as-lock-add=[no|yes] (default: no)\n\
encode lfence, mfence and sfence as\n\
lock addl $0x0, (%%{re}sp)\n"));
fprintf (stream, _("\
-mrelax-relocations=[no|yes]\n\
-mrelax-relocations=[no|yes] "));
if (DEFAULT_GENERATE_X86_RELAX_RELOCATIONS)
fprintf (stream, _("(default: yes)\n"));
else
fprintf (stream, _("(default: no)\n"));
fprintf (stream, _("\
generate relax relocations\n"));
fprintf (stream, _("\
-mamd64 accept only AMD64 ISA\n"));
-mamd64 accept only AMD64 ISA [default]\n"));
fprintf (stream, _("\
-mintel64 accept only Intel64 ISA\n"));
}