From 7c5c05effd92cc5732bee527303077fc2e6b62af Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Thu, 9 Aug 2018 09:48:12 -0700 Subject: [PATCH] x86: Display default x86-specific options for "as --help" * config/tc-i386.c (md_show_usage): Display default options. --- gas/ChangeLog | 4 ++++ gas/config/tc-i386.c | 39 +++++++++++++++++++++++++++------------ 2 files changed, 31 insertions(+), 12 deletions(-) diff --git a/gas/ChangeLog b/gas/ChangeLog index 7874132..ea3ee1b 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,7 @@ +2018-08-09 H.J. Lu + + * config/tc-i386.c (md_show_usage): Display default options. + 2018-08-07 James Patrick Conlon Nick Clifton diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 87cbadb..ddbffb9 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -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, _("\ + use AT&T/Intel mnemonic\n")); fprintf (stream, _("\ - -msyntax=[att|intel] use AT&T/Intel syntax\n")); + -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")); } -- 2.7.4