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Improve wording of --target help

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This commit is contained in:
Simonas Kazlauskas 2016-02-03 02:50:55 +02:00
parent 2dc132e4d2
commit c5c756bf14
2 changed files with 27 additions and 20 deletions
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41
man/rustc.1
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@ -53,10 +53,9 @@ Comma separated list of types of crates for the compiler to emit.
Specify the name of the crate being built.
.TP
\fB\-\-emit\fR [asm|llvm\-bc|llvm\-ir|obj|link|dep\-info][=\fIPATH\fR]
Configure the output that \fBrustc\fR will produce.
Each emission may also have an optional explicit output \fIPATH\fR specified for that particular
emission kind. This path takes precedence over the \fB-o\fR option.
Configure the output that \fBrustc\fR will produce. Each emission may also have
an optional explicit output \fIPATH\fR specified for that particular emission
kind. This path takes precedence over the \fB-o\fR option.
.TP
\fB\-\-print\fR [crate\-name|file\-names|sysroot]
Comma separated list of compiler information to print on stdout.
@ -68,13 +67,11 @@ Equivalent to \fI\-C\ debuginfo=2\fR.
Equivalent to \fI\-C\ opt\-level=2\fR.
.TP
\fB\-o\fR \fIFILENAME\fR
Write output to \fIFILENAME\fR.
Ignored if multiple \fI\-\-emit\fR outputs are specified which don't have an
explicit path otherwise.
Write output to \fIFILENAME\fR. Ignored if multiple \fI\-\-emit\fR outputs are specified which
don't have an explicit path otherwise.
.TP
\fB\-\-out\-dir\fR \fIDIR\fR
Write output to compiler\[hy]chosen filename in \fIDIR\fR.
Ignored if \fI\-o\fR is specified.
Write output to compiler\[hy]chosen filename in \fIDIR\fR. Ignored if \fI\-o\fR is specified.
Defaults to the current directory.
.TP
\fB\-\-explain\fR \fIOPT\fR
@ -83,12 +80,26 @@ Provide a detailed explanation of an error message.
\fB\-\-test\fR
Build a test harness.
.TP
\fB\-\-target\fR \fITRIPLE\fR
Target triple \fIcpu\fR\-\fImanufacturer\fR\-\fIkernel\fR[\-\fIos\fR]
to compile for (see chapter 3.4 of
.UR http://www.sourceware.org/autobook/
.UE
for details).
\fB\-\-target\fR \fITARGET\fR
Target triple for which the code is compiled. This option defaults to the host’s target
triple. The target triple has the general format <arch><sub>\-<vendor>\-<sys>\-<abi>, where:
.RS
.TP
.B <arch>
x86, arm, thumb, mips, etc.
.TP
.B <sub>
for example on ARM: v5, v6m, v7a, v7m, etc.
.TP
.B <vendor>
pc, apple, nvidia, ibm, etc.
.TP
.B <sys>
none, linux, win32, darwin, cuda, etc.
.TP
.B <abi>
eabi, gnu, android, macho, elf, etc.
.RE
.TP
\fB\-W help\fR
Print 'lint' options and default settings.

6
src/librustc/session/config.rs
View file

@ -845,11 +845,7 @@ pub fn rustc_short_optgroups() -> Vec<RustcOptGroup> {
opt::opt("", "explain", "Provide a detailed explanation of an error \
message", "OPT"),
opt::flag("", "test", "Build a test harness"),
opt::opt("", "target", "Target triple cpu-manufacturer-kernel[-os] \
to compile for (see chapter 3.4 of \
http://www.sourceware.org/autobook/
for details)",
"TRIPLE"),
opt::opt("", "target", "Target triple for which the code is compiled", "TARGET"),
opt::multi("W", "warn", "Set lint warnings", "OPT"),
opt::multi("A", "allow", "Set lint allowed", "OPT"),
opt::multi("D", "deny", "Set lint denied", "OPT"),