| Age | Commit message (Collapse) | Author | Lines |
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| 2018年09月12日 | fix issues from public functions defined without declaration visible | Rich Felker | -0/+2 |
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policy is that all public functions which have a public declaration
should be defined in a context where that public declaration is
visible, to avoid preventable type mismatches.
an audit performed using GCC's -Wmissing-declarations turned up the
violations corrected here. in some cases the public header had not
been included; in others, a feature test macro needed to make the
declaration visible had been omitted.
in the case of gethostent and getnetent, the omission seems to have
been intentional, as a hack to admit a single stub definition for both
functions. this kind of hack is no longer acceptable; it's UB and
would not fly with LTO or advanced toolchains. the hack is undone to
make exposure of the declarations possible.
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| 2014年01月02日 | disable sbrk for all values of increment except 0 | Rich Felker | -3/+3 |
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use of sbrk is never safe; it conflicts with malloc, and malloc may be
used internally by the implementation basically anywhere. prior to
this change, applications attempting to use sbrk to do their own heap
management simply caused untrackable memory corruption; now, they will
fail with ENOMEM allowing the errors to be fixed.
sbrk(0) is still permitted as a way to get the current brk; some
misguided applications use this as a measurement of their memory
usage or for other related purposes, and such usage is harmless.
eventually sbrk may be re-added if/when malloc is changed to avoid
using the brk by using mmap for all allocations.
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| 2011年09月26日 | cleanup various minor issues reported by nsz | Rich Felker | -2/+2 |
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the changes to syscall_ret are mostly no-ops in the generated code,
just cleanup of type issues and removal of some implementation-defined
behavior. the one exception is the change in the comparison value,
which is fixed so that 0xf...f000 (which in principle could be a valid
return value for mmap, although probably never in reality) is not
treated as an error return.
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| 2011年05月22日 | fix brk/sbrk behavior to match the real legacy functions | Rich Felker | -1/+3 |
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| 2011年03月20日 | global cleanup to use the new syscall interface | Rich Felker | -1/+1 |
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| 2011年02月12日 | initial check-in, version 0.5.0 v0.5.0 | Rich Felker | -0/+7 |
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