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author | A. Wilcox <awilcox@wilcox-tech.com> | 2018-02-01 22:05:36 +0000 |
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committer | A. Wilcox <awilcox@wilcox-tech.com> | 2018-02-01 22:05:36 +0000 |
commit | 88815225fdabe7fa862f1c07abfcc971fdf5b04e (patch) | |
tree | 7aaae7c04fcf06aea85505fc028f476a131b9c50 /libgcompat/math.c | |
parent | c545f7393f0a10c182c2c085a36d7099b9c07a7f (diff) | |
parent | 78722ef403ffadcb78917e93e1859d43b9bf9df5 (diff) | |
download | gcompat-88815225fdabe7fa862f1c07abfcc971fdf5b04e.tar.gz gcompat-88815225fdabe7fa862f1c07abfcc971fdf5b04e.tar.bz2 gcompat-88815225fdabe7fa862f1c07abfcc971fdf5b04e.tar.xz gcompat-88815225fdabe7fa862f1c07abfcc971fdf5b04e.zip |
Merge branch 'patch-1' into 'master'
Clean up everything and add lots of new functions
I hope everything here is okay. I fixed some bugs in existing functions (mostly wrong prototypes or off-by-one errors) and formatted everything to a consistent style. If you'd like me to adjust the style, that's no problem. It wasn't very consistent to start with (within the code, and compared to the documentation).
*I added specific notes you may want to comment on to some of the commit messages.*
Major features:
* Pass correct `argv[0]` in loader
* Intercept `readlink("/proc/self/exe")` to allow re-exec
* Add almost all reasonable-to-implement functions in LSB 5.0.0 core generic libc. Remaining functions are:
- Impossible-to-implement: sigreturn
- Not useful: reentrant random (`*rand48_r`, etc.), argz, envz, pmap, rpc (clnt_*, svc*, xdr*), bindresvport
- Got tired of it: checked wchar
* Add additional functions used by android and its NDK tools (clang, cmake, lldb, ninja, etc.).
At this point, I am able to run Android Studio with the bundled prebuilt JDK, and compile, install, and run an android application (including one with native libraries) on a real device, with only a few minor issues:
* must export `LD_LIBRARY_PATH=/opt/android-studio/jre/jre/lib/amd64/server` because musl and glibc interpret the variable differently with regards to `dlopen`. This is something that has to be patched in musl builds of openjdk, so it's not a gcompat issue.
* ld.bfd fails to parse the argument `--sysroot=/path`, but can parse `--sysroot /path`. So there's some difference with `getopt_long_only` (or getopt in general). May be a bug, may be just an API difference. May be it can be patched up.
* LLDB fails to connect to the android phone for native debugging -- I haven't tried it on glibc yet, so it may not be a gcompat issue at all (may be a phone or the app issue).
I'd be happy to send some documentation later.
See merge request !1
Diffstat (limited to 'libgcompat/math.c')
-rw-r--r-- | libgcompat/math.c | 96 |
1 files changed, 83 insertions, 13 deletions
diff --git a/libgcompat/math.c b/libgcompat/math.c index 2c793e4..db123f8 100644 --- a/libgcompat/math.c +++ b/libgcompat/math.c @@ -1,26 +1,96 @@ -#include <math.h> // isinf, isnan +#include <math.h> /* isfinite, isinf, isnan */ -int __isinff(float number) +#include "alias.h" /* weak_alias */ + +/** + * Test for finite value. + */ +int __finite(double arg) +{ + return isfinite(arg); +} +weak_alias(__finite, finite); + +/** + * Test for finite value. + */ +int __finitef(float arg) { - return isinf(number); + return isfinite(arg); } +weak_alias(__finitef, finitef); -int __isinf(double number) +/** + * Test for finite value. + */ +int __finitel(long double arg) { - return isinf(number); + return isfinite(arg); } +weak_alias(__finitel, finitel); -int __isnanf(float number) +/** + * Test for infinity. + * + * LSB 5.0: LSB-Core-generic/baselib---isinf.html + */ +int __isinf(double arg) { - return isnan(number); + return isinf(arg); } +weak_alias(__isinf, isinf); -int __isnan(double number) +/** + * Test for infinity. + * + * LSB 5.0: LSB-Core-generic/baselib---isinff.html + */ +int __isinff(float arg) { - return isnan(number); + return isinf(arg); } +weak_alias(__isinff, isinff); -extern __typeof(__isnanf) isnanf __attribute__((weak, alias("__isnanf"))); -extern __typeof(__isnan) isnan __attribute__((weak, alias("__isnan"))); -extern __typeof(__isinff) isinff __attribute__((weak, alias("__isinff"))); -extern __typeof(__isinf) isinf __attribute__((weak, alias("__isinf"))); +/** + * Test for infinity. + * + * LSB 5.0: LSB-Core-generic/baselib---isinfl.html + */ +int __isinfl(long double arg) +{ + return isinf(arg); +} +weak_alias(__isinfl, isinfl); + +/** + * Test for a NaN. + * + * LSB 5.0: LSB-Core-generic/baselib---isnan.html + */ +int __isnan(double arg) +{ + return isnan(arg); +} +weak_alias(__isnan, isnan); + +/** + * Test for a NaN. + * + * LSB 5.0: LSB-Core-generic/baselib---isnanf.html + */ +int __isnanf(float arg) +{ + return isnan(arg); +} +weak_alias(__isnanf, isnanf); + +/** + * Test for a NaN. + * + * LSB 5.0: LSB-Core-generic/baselib---isnanl.html + */ +int __isnanl(long double arg) +{ + return isnan(arg); +} +weak_alias(__isnanl, isnanl); |