riscv/musl - musl - Gitea: Git with a cup of tea

4956 Commits

2 Branches

78 Tags

7.6 MiB

Tree: e1b57ede3e

Commit Graph

Author SHA1 Message Date

Author	SHA1	Message	Date
Rich Felker	246f1c8114	remove LFS64 symbol aliases; replace with dynamic linker remapping originally the namespace-infringing "large file support" interfaces were included as part of glibc-ABI-compat, with the intent that they not be used for linking, since our off_t is and always has been unconditionally 64-bit and since we usually do not aim to support nonstandard interfaces when there is an equivalent standard interface. unfortunately, having the symbols present and available for linking caused configure scripts to detect them and attempt to use them without declarations, producing all the expected ill effects that entails. as a result, commit `2dd8d5e1b8` was made to prevent this, using macros to redirect the LFS64 names to the standard names, conditional on _GNU_SOURCE or _LARGEFILE64_SOURCE. however, this has turned out to be a source of further problems, especially since g++ defines _GNU_SOURCE by default. in particular, the presence of these names as macros breaks a lot of valid code. this commit removes all the LFS64 symbols and replaces them with a mechanism in the dynamic linker symbol lookup failure path to retry with the spurious "64" removed from the symbol name. in the future, if/when the rest of glibc-ABI-compat is moved out of libc, this can be removed.	4 years ago
Rich Felker	c045032094	add time32 ABI compat shims, compat source tree these files provide the symbols for the traditional 32-bit time_t ABI on existing 32-bit archs by wrapping the real, internal versions of the corresponding functions, which always work with 64-bit time_t. they are written to be as agnostic as possible to the implementation details of the real functions, so that they can be written once and mostly forgotten, but they are aware of details of the old (and sometimes new) ABI, which is okay since ABI is fixed and cannot change. a new compat tree is added, separate from src, which the Makefile does not see or use now, but which archs will be able to add to the build process. we could also consider moving other things that are compat shims here, like functions which are purely for glibc-ABI-compat, with the goal of making it optional or just cleaning up the main src tree to make the distinction between actual implementation/API files and ABI-compat shims clear.	7 years ago

Rich Felker

246f1c8114

remove LFS64 symbol aliases; replace with dynamic linker remapping

originally the namespace-infringing "large file support" interfaces
were included as part of glibc-ABI-compat, with the intent that they
not be used for linking, since our off_t is and always has been
unconditionally 64-bit and since we usually do not aim to support
nonstandard interfaces when there is an equivalent standard interface.

unfortunately, having the symbols present and available for linking
caused configure scripts to detect them and attempt to use them
without declarations, producing all the expected ill effects that
entails.

as a result, commit 2dd8d5e1b8 was made
to prevent this, using macros to redirect the LFS64 names to the
standard names, conditional on _GNU_SOURCE or _LARGEFILE64_SOURCE.
however, this has turned out to be a source of further problems,
especially since g++ defines _GNU_SOURCE by default. in particular,
the presence of these names as macros breaks a lot of valid code.

this commit removes all the LFS64 symbols and replaces them with a
mechanism in the dynamic linker symbol lookup failure path to retry
with the spurious "64" removed from the symbol name. in the future,
if/when the rest of glibc-ABI-compat is moved out of libc, this can be
removed.

4 years ago

Rich Felker

c045032094

add time32 ABI compat shims, compat source tree

these files provide the symbols for the traditional 32-bit time_t ABI
on existing 32-bit archs by wrapping the real, internal versions of
the corresponding functions, which always work with 64-bit time_t.
they are written to be as agnostic as possible to the implementation
details of the real functions, so that they can be written once and
mostly forgotten, but they are aware of details of the old (and
sometimes new) ABI, which is okay since ABI is fixed and cannot
change.

a new compat tree is added, separate from src, which the Makefile does
not see or use now, but which archs will be able to add to the build
process. we could also consider moving other things that are compat
shims here, like functions which are purely for glibc-ABI-compat, with
the goal of making it optional or just cleaning up the main src tree
to make the distinction between actual implementation/API files and
ABI-compat shims clear.

7 years ago

2 Commits (e1b57ede3ecad17e8f3c4e59f7fb0df1d5a6b2f4)