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From Craig Silverstein: Support -o -.

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This commit is contained in:
Ian Lance Taylor 2007-12-05 01:13:28 +00:00
parent 43771f7638
commit 42a1b6860d
1 changed files with 20 additions and 11 deletions
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31
gold/output.cc
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@ -1957,15 +1957,21 @@ Output_file::open(off_t file_size)
// If we fail, continue; this command is merely a best-effort attempt
// to improve the odds for open().
struct stat s;
if (::stat(this->name_, &s) == 0 && s.st_size != 0)
unlink_if_ordinary(this->name_);
// We let the name "-" mean "stdout"
if (strcmp(this->name_, "-") == 0)
this->o_ = STDOUT_FILENO;
else
{
struct stat s;
if (::stat(this->name_, &s) == 0 && s.st_size != 0)
unlink_if_ordinary(this->name_);
int mode = parameters->output_is_object() ? 0666 : 0777;
int o = ::open(this->name_, O_RDWR | O_CREAT | O_TRUNC, mode);
if (o < 0)
gold_fatal(_("%s: open: %s"), this->name_, strerror(errno));
this->o_ = o;
int mode = parameters->output_is_object() ? 0666 : 0777;
int o = ::open(this->name_, O_RDWR | O_CREAT | O_TRUNC, mode);
if (o < 0)
gold_fatal(_("%s: open: %s"), this->name_, strerror(errno));
this->o_ = o;
}
this->map();
}
@ -2007,7 +2013,8 @@ Output_file::map()
// then later write the buffer to the file.
void* base;
struct stat statbuf;
if (::fstat(o, &statbuf) != 0
if (o == STDOUT_FILENO || o == STDERR_FILENO
|| ::fstat(o, &statbuf) != 0
|| !S_ISREG(statbuf.st_mode))
{
this->map_is_anonymous_ = true;
@ -2065,8 +2072,10 @@ Output_file::close()
}
this->unmap();
if (::close(this->o_) < 0)
gold_error(_("%s: close: %s"), this->name_, strerror(errno));
// We don't close stdout or stderr
if (this->o_ != STDOUT_FILENO && this->o_ != STDERR_FILENO)
if (::close(this->o_) < 0)
gold_error(_("%s: close: %s"), this->name_, strerror(errno));
this->o_ = -1;
}