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| author | Jeff Johnston <jjohnstn@redhat.com> | 2009-04-21 18:38:53 +0000 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2009-04-21 18:38:53 +0000 |
| commit | 161e368ac4944c97fc4ff9f99368ac252167eadc (patch) | |
| tree | ca0f45cd881d6086ce20963f9457503fbfedb591 | |
| parent | 15b71e66797fb4f2705532da0d08bd656b8c621c (diff) | |
| download | cygnal-161e368ac4944c97fc4ff9f99368ac252167eadc.tar.gz cygnal-161e368ac4944c97fc4ff9f99368ac252167eadc.tar.bz2 cygnal-161e368ac4944c97fc4ff9f99368ac252167eadc.zip | |
2009-04-21 Sandra Loosemore <sandra@codesourcery.com>
* libc/reent/impure.c (__sf_fake_stdin, __sf_fake_stdout)
(__sf_fake_stderr): Declare locally with weak attribute.
| -rw-r--r-- | newlib/ChangeLog | 5 | ||||
| -rw-r--r-- | newlib/libc/reent/impure.c | 11 |
2 files changed, 16 insertions, 0 deletions
diff --git a/newlib/ChangeLog b/newlib/ChangeLog index 8997c2099..bdfbc0fa1 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -1,3 +1,8 @@ +2009-04-21 Sandra Loosemore <sandra@codesourcery.com> + + * libc/reent/impure.c (__sf_fake_stdin, __sf_fake_stdout) + (__sf_fake_stderr): Declare locally with weak attribute. + 2009-04-21 Mark Mitchell <mark@codesourcery.com> * libc/include/_ansi.h: Move C++ defines to top of file. diff --git a/newlib/libc/reent/impure.c b/newlib/libc/reent/impure.c index 12ee7177b..f5918c88f 100644 --- a/newlib/libc/reent/impure.c +++ b/newlib/libc/reent/impure.c @@ -9,6 +9,17 @@ #define __ATTRIBUTE_IMPURE_DATA__ #endif +/* Redeclare these symbols locally as weak so that the file containing + their definitions (along with a lot of other stuff) isn't sucked in + unless they are actually used by other compilation units. This is + important to reduce image size for targets with very small amounts + of memory. */ +#ifdef _REENT_SMALL +extern const struct __sFILE_fake __sf_fake_stdin _ATTRIBUTE ((weak)); +extern const struct __sFILE_fake __sf_fake_stdout _ATTRIBUTE ((weak)); +extern const struct __sFILE_fake __sf_fake_stderr _ATTRIBUTE ((weak)); +#endif + static struct _reent __ATTRIBUTE_IMPURE_DATA__ impure_data = _REENT_INIT (impure_data); #ifdef __CYGWIN__ extern struct _reent reent_data __attribute__ ((alias("impure_data"))); |