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author | Joseph Myers <joseph@codesourcery.com> | 2018-02-15 20:58:16 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2018-02-15 20:58:16 +0000 |
commit | 499b315324519f8deb5b42a143a76319934a3ab0 (patch) | |
tree | 4923f289669b62c9093e6820341706235f96cafe /libio/iofsetpos64.c | |
parent | 7fc03cf320f9ed0178babbb33de0550d393b8886 (diff) | |
download | glibc-499b315324519f8deb5b42a143a76319934a3ab0.tar.gz glibc-499b315324519f8deb5b42a143a76319934a3ab0.tar.xz glibc-499b315324519f8deb5b42a143a76319934a3ab0.zip |
Use libc_hidden_* for fputs (bug 15105).
Among other localplt test failures when building with -Os, there are libc.so PLT references for fputs. fputs calls normally get redirected to _IO_fputs by a macro in include/stdio.h (and _IO_fputs in turn uses libc_hidden_proto), but GCC can convert an fprintf call with a constant string argument into an fputs call, which of course is then unaffected by the macro redirection. (I don't know why this issue only appears with -Os.) This patch duly adds a use of libc_hidden_proto for fputs. I see no obvious reason why the fputs macro redirection is needed at all, but this patch does not change it. Tested for x86_64 (both that it removes this particular localplt failure for -Os - but other such failures remain so the bug can't yet be closed - and that the testsuite continues to pass without -Os). [BZ #15105] * include/stdio.h [!_ISOMAC && IS_IN (libc)] (fputs): Use libc_hidden_proto. * libio/iofputs.c (fputs): Use libc_hidden_weak.
Diffstat (limited to 'libio/iofsetpos64.c')
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