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dlfcn: Move dlerror into libc

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The symbol was moved using scripts/move-symbol-to-libc.py.

There is a minor functionality enhancement: dlerror now sets
errno if it was set as part of the exception.  (This is the result
of using %m in asprintf, to avoid the strerror PLT call.) The
previous errno value upon function return was unpredictable.
Documenting this as a feature is premature; we need to make sure
that the error codes are meaningful when they are set by the dynamic
loader.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Florian Weimer
2021-06-02 07:32:20 +02:00
parent c44838ebf8
commit a23c28ec0d
68 changed files with 104 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
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@ -394,6 +394,7 @@ GLIBC_2.0 difftime F
GLIBC_2.0 dirfd F
GLIBC_2.0 dirname F
GLIBC_2.0 div F
GLIBC_2.0 dlerror F
GLIBC_2.0 dprintf F
GLIBC_2.0 drand48 F
GLIBC_2.0 drand48_r F
@ -2330,6 +2331,7 @@ GLIBC_2.34 cnd_init F
GLIBC_2.34 cnd_signal F
GLIBC_2.34 cnd_timedwait F
GLIBC_2.34 cnd_wait F
GLIBC_2.34 dlerror F
GLIBC_2.34 execveat F
GLIBC_2.34 mtx_destroy F
GLIBC_2.34 mtx_init F

1
sysdeps/unix/sysv/linux/mips/mips32/libdl.abilist
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@ -1,6 +1,5 @@
GLIBC_2.0 dladdr F
GLIBC_2.0 dlclose F
GLIBC_2.0 dlerror F
GLIBC_2.0 dlopen F
GLIBC_2.0 dlsym F
GLIBC_2.2 dlopen F

2
sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
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@ -394,6 +394,7 @@ GLIBC_2.0 difftime F
GLIBC_2.0 dirfd F
GLIBC_2.0 dirname F
GLIBC_2.0 div F
GLIBC_2.0 dlerror F
GLIBC_2.0 dprintf F
GLIBC_2.0 drand48 F
GLIBC_2.0 drand48_r F
@ -2328,6 +2329,7 @@ GLIBC_2.34 cnd_init F
GLIBC_2.34 cnd_signal F
GLIBC_2.34 cnd_timedwait F
GLIBC_2.34 cnd_wait F
GLIBC_2.34 dlerror F
GLIBC_2.34 execveat F
GLIBC_2.34 mtx_destroy F
GLIBC_2.34 mtx_init F

1
sysdeps/unix/sysv/linux/mips/mips64/libdl.abilist
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@ -1,6 +1,5 @@
GLIBC_2.0 dladdr F
GLIBC_2.0 dlclose F
GLIBC_2.0 dlerror F
GLIBC_2.0 dlopen F
GLIBC_2.0 dlsym F
GLIBC_2.2 dlopen F

2
sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
View File

@ -394,6 +394,7 @@ GLIBC_2.0 difftime F
GLIBC_2.0 dirfd F
GLIBC_2.0 dirname F
GLIBC_2.0 div F
GLIBC_2.0 dlerror F
GLIBC_2.0 dprintf F
GLIBC_2.0 drand48 F
GLIBC_2.0 drand48_r F
@ -2336,6 +2337,7 @@ GLIBC_2.34 cnd_init F
GLIBC_2.34 cnd_signal F
GLIBC_2.34 cnd_timedwait F
GLIBC_2.34 cnd_wait F
GLIBC_2.34 dlerror F
GLIBC_2.34 execveat F
GLIBC_2.34 mtx_destroy F
GLIBC_2.34 mtx_init F

2
sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
View File

@ -392,6 +392,7 @@ GLIBC_2.0 difftime F
GLIBC_2.0 dirfd F
GLIBC_2.0 dirname F
GLIBC_2.0 div F
GLIBC_2.0 dlerror F
GLIBC_2.0 dprintf F
GLIBC_2.0 drand48 F
GLIBC_2.0 drand48_r F
@ -2330,6 +2331,7 @@ GLIBC_2.34 cnd_init F
GLIBC_2.34 cnd_signal F
GLIBC_2.34 cnd_timedwait F
GLIBC_2.34 cnd_wait F
GLIBC_2.34 dlerror F
GLIBC_2.34 execveat F
GLIBC_2.34 mtx_destroy F
GLIBC_2.34 mtx_init F