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authorCary Coutant <ccoutant@google.com>2010-08-09 18:08:18 +0000
committerCary Coutant <ccoutant@google.com>2010-08-09 18:08:18 +0000
commit955974c6c5ddc44febc20560a975a76acf3aa5ca (patch)
treeab178805104736c70402db3279c5afd5b75e3ec6 /gas
parent1971b03393cfbbc43b8404e2a2c9a77f3161c67e (diff)
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* as.c (show_usage): Don't list --compress-debug-sections if zlib not
installed. (main): Warn if --compress-debug-sections requested and zlib not installed. * doc/as.texinfo: Add --compress-debug-sections, --nocompress-debug-sections.
Diffstat (limited to 'gas')
-rw-r--r--gas/ChangeLog9
-rw-r--r--gas/as.c6
-rw-r--r--gas/doc/as.texinfo9
3 files changed, 24 insertions, 0 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog
index 534c956..7c65f71 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,12 @@
+2010-08-09 Cary Coutant <ccoutant@google.com>
+
+ * as.c (show_usage): Don't list --compress-debug-sections if zlib not
+ installed.
+ (main): Warn if --compress-debug-sections requested and zlib not
+ installed.
+ * doc/as.texinfo: Add --compress-debug-sections,
+ --nocompress-debug-sections.
+
2010-08-06 H.J. Lu <hongjiu.lu@intel.com>
* config/tc-i386.c (set_cpu_arch): Re-indent.
diff --git a/gas/as.c b/gas/as.c
index 45acbaa..d9aa6e2 100644
--- a/gas/as.c
+++ b/gas/as.c
@@ -245,12 +245,14 @@ Options:\n\
fprintf (stream, _("\
--alternate initially turn on alternate macro syntax\n"));
+#ifdef HAVE_ZLIB_H
fprintf (stream, _("\
--compress-debug-sections\n\
compress DWARF debug sections using zlib\n"));
fprintf (stream, _("\
--nocompress-debug-sections\n\
don't compress DWARF debug sections\n"));
+#endif /* HAVE_ZLIB_H */
fprintf (stream, _("\
-D produce assembler debugging messages\n"));
fprintf (stream, _("\
@@ -646,7 +648,11 @@ This program has absolutely no warranty.\n"));
exit (EXIT_SUCCESS);
case OPTION_COMPRESS_DEBUG:
+#ifdef HAVE_ZLIB_H
flag_compress_debug = 1;
+#else
+ as_warn (_("cannot compress debug sections (zlib not installed)"));
+#endif /* HAVE_ZLIB_H */
break;
case OPTION_NOCOMPRESS_DEBUG:
diff --git a/gas/doc/as.texinfo b/gas/doc/as.texinfo
index a8327b8..f17c591 100644
--- a/gas/doc/as.texinfo
+++ b/gas/doc/as.texinfo
@@ -232,6 +232,7 @@ gcc(1), ld(1), and the Info entries for @file{binutils} and @file{ld}.
@smallexample
@c man begin SYNOPSIS
@value{AS} [@b{-a}[@b{cdghlns}][=@var{file}]] [@b{--alternate}] [@b{-D}]
+ [@b{--compress-debug-sections}] [@b{--nocompress-debug-sections}]
[@b{--debug-prefix-map} @var{old}=@var{new}]
[@b{--defsym} @var{sym}=@var{val}] [@b{-f}] [@b{-g}] [@b{--gstabs}]
[@b{--gstabs+}] [@b{--gdwarf-2}] [@b{--help}] [@b{-I} @var{dir}] [@b{-J}]
@@ -552,6 +553,14 @@ Begin in alternate macro mode.
@xref{Altmacro,,@code{.altmacro}}.
@end ifclear
+@item --compress-debug-sections
+Compress DWARF debug sections using zlib. The debug sections are renamed
+to begin with @samp{.zdebug}, and the resulting object file may not be
+compatible with older linkers and object file utilities.
+
+@item --nocompress-debug-sections
+Do not compress DWARF debug sections. This is the default.
+
@item -D
Ignored. This option is accepted for script compatibility with calls to
other assemblers.