- 12 8月, 2012 2 次提交
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由 Rich Felker 提交于
since this interface is rarely used, it's probably best to lean towards keeping code size down anyway. one-character needles will still be found immediately by the initial wcschr call anyway.
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由 Rich Felker 提交于
optimized to avoid allocation and return lines directly out of the stream buffer whenever possible.
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- 11 8月, 2012 4 次提交
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由 Rich Felker 提交于
the strspn call was made for every format specifier and end-of-string, even though the expected return value was 1-2 for normal usage. replace with simple loop.
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由 Rich Felker 提交于
amusingly, this cuts more than 10% off the run time of printf("a"); on the machine i tested it on. sadly the same optimization is not possible for snprintf without duplicating all the pseudo-FILE setup code, which is not worth it.
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由 Rich Felker 提交于
this is needed to match the underlying "ABI" standards. it's not really an ABI issue since the binary representations are the same, but having the wrong type can lead to errors when the type arising from a difference-of-pointers expression does not match the defined type of ptrdiff_t. most of the problems affect C++, not C.
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由 Rich Felker 提交于
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- 10 8月, 2012 4 次提交
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由 Rich Felker 提交于
there are still some discussions going on about tweaking the code, but at least thing brings us to the point of having something working in the repository. hopefully the remaining major hashes (md5,sha) will follow soon.
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由 Rich Felker 提交于
some minor changes to how hard-coded sets for thread-related purposes are handled were also needed, since the old object sizes were not necessarily sufficient. things have gotten a bit ugly in this area, and i think a cleanup is in order at some point, but for now the goal is just to get the code working on all supported archs including mips, which was badly broken by linux rejecting syscalls with the wrong sigset_t size.
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由 Rich Felker 提交于
yet another gratuitous mips incompatibility...
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由 Rich Felker 提交于
unfortunately, a large portion of programs which call crypt are not prepared for its failure and do not check that the return value is non-null before using it. thus, always "succeeding" but giving an unmatchable hash is reportedly a better behavior than failing on error. it was suggested that we could do this the same way as other implementations and put the null-to-unmatchable translation in the wrapper rather than the individual crypt modules like crypt_des, but when i tried to do it, i found it was making the logic in __crypt_r for keeping track of which hash type we're working with and whether it succeeded or failed much more complex, and potentially error-prone. the way i'm doing it now seems to have essentially zero cost, anyway.
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- 08 8月, 2012 3 次提交
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由 Rich Felker 提交于
untested; hopefully it's right now
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由 Rich Felker 提交于
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由 Rich Felker 提交于
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- 06 8月, 2012 10 次提交
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由 Rich Felker 提交于
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由 Rich Felker 提交于
untested
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由 Rich Felker 提交于
why does mips have to be gratuitously incompatible in every possible imaginable way?
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由 Rich Felker 提交于
since .init and .fini are not .text, the toolchain does not seem to align them for code by default. this yields random breakage depending on the object sizes the linker is dealing with.
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由 Rich Felker 提交于
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由 Rich Felker 提交于
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由 Rich Felker 提交于
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由 Rich Felker 提交于
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由 Rich Felker 提交于
not heavily tested, but the basics are working. the basic concept is that the dynamic linker entry point code invokes a pure-PIC (no global accesses) C function in reloc.h to perform the early GOT relocations needed to make the dynamic linker itself functional, then invokes __dynlink like on other archs. since mips uses some ugly arch-specific hacks to optimize relocating the GOT (rather than just using the normal DT_REL[A] tables like on other archs), the dynamic linker has been modified slightly to support calling arch-specific relocation code in reloc.h. most of the actual mips-specific behavior was developed by reading the output of readelf on libc.so and simple executable files. i could not find good reference information on which relocation types need to be supported or their semantics, so it's possible that some legitimate usage cases will not work yet.
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由 Rich Felker 提交于
this is mainly a development convenience but will also ensure users building from latest git always get up-to-date arch-specific dynamic linker code without having to "make clean".
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- 05 8月, 2012 4 次提交
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由 Rich Felker 提交于
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由 Rich Felker 提交于
changing the string printed for the dso name is not a regression; the old code was simply using the wrong dso name (head rather than the dso currently being relocated). this will be fixed in a later commit.
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由 Rich Felker 提交于
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由 Rich Felker 提交于
not heavily tested, but at least they don't seem to break anything on soft float targets with or without coprocessors. they check the auxv AT_HWCAP flags to determine which coprocessor, if any, is available.
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- 03 8月, 2012 4 次提交
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由 Rich Felker 提交于
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由 Rich Felker 提交于
this allows config.mak to override the default -lgcc for building with other compilers such as pcc/clang/etc.
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由 Rich Felker 提交于
since the correct declaration was not visible, and since the representation of the types wchar_t and wint_t always match, a compiler would have to go out of its way to make this bug manifest, but better to fix it anyway.
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由 Rich Felker 提交于
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- 01 8月, 2012 1 次提交
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由 Rich Felker 提交于
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- 27 7月, 2012 2 次提交
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由 Rich Felker 提交于
the original code was wrongly based on how it would be done in thumb mode, but that's not needed because musl's asm only targets arm.
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由 Rich Felker 提交于
it's expected that this will be needed/useful only in asm, so I've given it its own symbol that can be addressed in pc-relative ways from asm rather than adding a field in the __libc structure which would require hard-coding the offset wherever it's used.
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- 24 7月, 2012 6 次提交
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由 Rich Felker 提交于
this seems counter-intuitive since sem_trywait is supposed to just try once, not wait for the semaphore. however, the retry loop is not a wait. instead, it's to handle the case where the value changes due to a simultaneous post or wait from another thread while the semaphore value remains positive. in such a case, it's absolutely wrong for sem_trywait to fail with EAGAIN because the semaphore is not busy.
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由 Rich Felker 提交于
this is needed in case -lgcc is passed explicitly on the link command line, for example if the wrapper is being used to build musl itself.
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由 Rich Felker 提交于
based on patches by orc and Isaac Dunham, with some fixes. sys/io.h exists and contains prototypes for these functions regardless of whether the target arch has them; this is a bit unorthodox but I don't think it will break anything. the function definitions do not exist unless the appropriate SYS_* syscall number macro is defined, which should make sure configure scripts looking for these functions don't find them on other systems. presently, sys/io.h does not have the inb/outb/etc. port io macros/functions. I'd be surprised if ioperm/iopl are useful without them, so they probably need to be added at some point in appropriate bits/io.h files...
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由 Rich Felker 提交于
based on patches by orc and Isaac Dunham.
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由 Rich Felker 提交于
based on patch by orc and Isaac Dunham, with some fixes.
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由 Rich Felker 提交于
based on patch by orc and Isaac Dunham, with some details fixed.
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