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| author | Ian Lance Taylor <ian@airs.com> | 2009-10-09 23:20:44 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@airs.com> | 2009-10-09 23:20:44 +0000 |
| commit | d9a893b837890cddc71ea116e4d7e5b7bf9aadb8 (patch) | |
| tree | 9c062c6e4c64b7d9c52415a8b93afecada7e957e | |
| parent | c0a628659598a06ce2b60c956763f075a2b64b30 (diff) | |
| download | gdb-d9a893b837890cddc71ea116e4d7e5b7bf9aadb8.zip gdb-d9a893b837890cddc71ea116e4d7e5b7bf9aadb8.tar.gz gdb-d9a893b837890cddc71ea116e4d7e5b7bf9aadb8.tar.bz2 | |
* configure.ac: Check for readv function also.
* fileread.cc (readv): Define if not HAVE_READV.
* fileread.h (File_read:: max_readv_entries): Set to 1 if readv
does not exist.
* config.in: Regenerate.
* configure: Regenerate.
| -rw-r--r-- | gold/ChangeLog | 10 | ||||
| -rw-r--r-- | gold/config.in | 3 | ||||
| -rwxr-xr-x | gold/configure | 2 | ||||
| -rw-r--r-- | gold/configure.ac | 2 | ||||
| -rw-r--r-- | gold/fileread.cc | 9 | ||||
| -rw-r--r-- | gold/fileread.h | 6 |
6 files changed, 30 insertions, 2 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog index 2b31fa6..0072baa 100644 --- a/gold/ChangeLog +++ b/gold/ChangeLog @@ -1,3 +1,13 @@ +2009-10-09 Andrew Pinski <andrew_pinski@playstation.sony.com> + Ian Lance Taylor <iant@google.com> + + * configure.ac: Check for readv function also. + * fileread.cc (readv): Define if not HAVE_READV. + * fileread.h (File_read:: max_readv_entries): Set to 1 if readv + does not exist. + * config.in: Regenerate. + * configure: Regenerate. + 2009-10-09 Doug Kwan <dougkwan@google.com> * layout.cc (Layout::make_output_section): Call target hook to make diff --git a/gold/config.in b/gold/config.in index 5fccefb..93d7517 100644 --- a/gold/config.in +++ b/gold/config.in @@ -99,6 +99,9 @@ /* Define to 1 if you have the `pread' function. */ #undef HAVE_PREAD +/* Define to 1 if you have the `readv' function. */ +#undef HAVE_READV + /* Define to 1 if you have the <stdint.h> header file. */ #undef HAVE_STDINT_H diff --git a/gold/configure b/gold/configure index 4fa30b8..e4eb9fb 100755 --- a/gold/configure +++ b/gold/configure @@ -6701,7 +6701,7 @@ fi done -for ac_func in mallinfo posix_fallocate +for ac_func in mallinfo posix_fallocate readv do : as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` ac_fn_cxx_check_func "$LINENO" "$ac_func" "$as_ac_var" diff --git a/gold/configure.ac b/gold/configure.ac index 2492c7a..85e23f9 100644 --- a/gold/configure.ac +++ b/gold/configure.ac @@ -338,7 +338,7 @@ AC_LANG_PUSH(C++) AC_CHECK_HEADERS(tr1/unordered_set tr1/unordered_map) AC_CHECK_HEADERS(ext/hash_map ext/hash_set) AC_CHECK_HEADERS(byteswap.h) -AC_CHECK_FUNCS(mallinfo posix_fallocate) +AC_CHECK_FUNCS(mallinfo posix_fallocate readv) AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf, strverscmp, strndup, memmem]) # Use of ::std::tr1::unordered_map::rehash causes undefined symbols diff --git a/gold/fileread.cc b/gold/fileread.cc index 02f0571..aed1c1d 100644 --- a/gold/fileread.cc +++ b/gold/fileread.cc @@ -40,6 +40,15 @@ #include "descriptors.h" #include "fileread.h" +#ifndef HAVE_READV +struct iovec { void* iov_base; size_t iov_len }; +ssize_t +readv(int, const iovec*, int) +{ + gold_unreachable(); +} +#endif + namespace gold { diff --git a/gold/fileread.h b/gold/fileread.h index 920a4da..bdffdd1 100644 --- a/gold/fileread.h +++ b/gold/fileread.h @@ -370,7 +370,13 @@ class File_read { return (file_size + (page_size - 1)) & ~ (page_size - 1); } // The maximum number of entries we will pass to ::readv. +#ifdef HAVE_READV static const size_t max_readv_entries = 128; +#else + // On targets that don't have readv set the max to 1 so readv is not + // used. + static const size_t max_readv_entries = 1; +#endif // Use readv to read data. void |