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author | Rich Felker <dalias@aerifal.cx> | 2022-07-19 19:00:53 -0400 |
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committer | Rich Felker <dalias@aerifal.cx> | 2022-07-19 19:00:53 -0400 |
commit | d16d7b10997e6f1c224c3de01b43868f0ce2cc3d (patch) | |
tree | 5965ae45c5154b9ad86034dcefd25dcbecdafb71 /src/setjmp/mips64 | |
parent | 63c67053a3e42e9dff788de432f82ff07d4d772a (diff) | |
download | musl-d16d7b10997e6f1c224c3de01b43868f0ce2cc3d.tar.gz musl-d16d7b10997e6f1c224c3de01b43868f0ce2cc3d.tar.xz musl-d16d7b10997e6f1c224c3de01b43868f0ce2cc3d.zip |
early stage ldso: remove symbolic references via error handling function
while the error handling function should not be reached in stage 2 (assuming ldso itself was linked correctly), this was not statically determinate from the compiler's perspective, and in theory a compiler performing LTO could lift the TLS references (errno and other things) out of the printf-family functions called in a stage where TLS is not yet initialized. instead, perform the call via a static-storage, internal-linkage function pointer which will be set to a no-op function until the stage where the real error handling function should be reachable. inspired by commit 63c67053a3e42e9dff788de432f82ff07d4d772a.
Diffstat (limited to 'src/setjmp/mips64')
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