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From: Sebastian Huber <sh@sourceware.org> To: newlib-cvs@sourceware.org Subject: [newlib-cygwin] Use weak reference for _REENT_SMALL Date: Thu, 19 May 2022 17:02:31 +0000 (GMT) [thread overview] Message-ID: <20220519170231.CAFF9396DC2C@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=03e815a91b1a1f94ce0cfd6ff64f50ae40ed740c commit 03e815a91b1a1f94ce0cfd6ff64f50ae40ed740c Author: Sebastian Huber <sebastian.huber@embedded-brains.de> Date: Tue May 17 20:39:35 2022 +0200 Use weak reference for _REENT_SMALL Avoid a strong reference to __sfp[] for _impure_data. The __sfp[] is linked in if __sinit() is used for example. Diff: --- newlib/libc/reent/impure.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/newlib/libc/reent/impure.c b/newlib/libc/reent/impure.c index f10665fd0..643a511c6 100644 --- a/newlib/libc/reent/impure.c +++ b/newlib/libc/reent/impure.c @@ -6,10 +6,14 @@ important to reduce image size for targets with very small amounts of memory. */ #ifdef _REENT_SMALL +#ifdef _REENT_GLOBAL_STDIO_STREAMS +extern __FILE __sf[3] _ATTRIBUTE ((weak)); +#else 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 +#endif struct _reent __ATTRIBUTE_IMPURE_DATA__ _impure_data = _REENT_INIT (_impure_data); #ifdef __CYGWIN__
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