diff options
Diffstat (limited to 'libc/misc/internals')
-rw-r--r-- | libc/misc/internals/.cvsignore | 1 | ||||
-rw-r--r-- | libc/misc/internals/Makefile | 2 | ||||
-rw-r--r-- | libc/misc/internals/__errno_location.c | 8 | ||||
-rw-r--r-- | libc/misc/internals/__uClibc_main.c | 31 | ||||
-rw-r--r-- | libc/misc/internals/errno.c | 29 |
5 files changed, 54 insertions, 17 deletions
diff --git a/libc/misc/internals/.cvsignore b/libc/misc/internals/.cvsignore new file mode 100644 index 000000000..10e486705 --- /dev/null +++ b/libc/misc/internals/.cvsignore @@ -0,0 +1 @@ +interp.c diff --git a/libc/misc/internals/Makefile b/libc/misc/internals/Makefile index 29ffdec7b..c81e02078 100644 --- a/libc/misc/internals/Makefile +++ b/libc/misc/internals/Makefile @@ -24,7 +24,7 @@ TOPDIR=../../../ include $(TOPDIR)Rules.mak -CSRC=ultostr.c ltostr.c __uClibc_main.c tempname.c +CSRC=ultostr.c ltostr.c __uClibc_main.c tempname.c errno.c __errno_location.c ifeq ($(HAS_FLOATING_POINT),true) CSRC += dtostr.c zoicheck.c endif diff --git a/libc/misc/internals/__errno_location.c b/libc/misc/internals/__errno_location.c new file mode 100644 index 000000000..10b97753f --- /dev/null +++ b/libc/misc/internals/__errno_location.c @@ -0,0 +1,8 @@ +#include <errno.h> +#undef errno + +int * weak_const_function __errno_location (void) +{ + return &errno; +} + diff --git a/libc/misc/internals/__uClibc_main.c b/libc/misc/internals/__uClibc_main.c index 299e1abdf..fd4e9552b 100644 --- a/libc/misc/internals/__uClibc_main.c +++ b/libc/misc/internals/__uClibc_main.c @@ -10,9 +10,13 @@ * avoided in the static library case. */ +#define _ERRNO_H #include <stdlib.h> #include <unistd.h> -#include <errno.h> +//#include <errno.h> +#undef errno + +#define __set_errno(val) (*__errno_location ()) = (val) /* * Prototypes. @@ -29,13 +33,21 @@ void __uClibc_main(int argc, char **argv, char **envp) weak_alias(__environ, environ); extern void weak_function __init_stdio(void); extern void weak_function __stdio_flush_buffers(void); -extern void weak_function __pthread_initialize_minimal (void); +extern int *weak_function __errno_location (void); #else extern void __init_stdio(void); extern void __stdio_flush_buffers(void); -extern void __pthread_initialize_minimal (void); +extern int *__errno_location (void); #endif +/* + * Declare the __environ global variable and create a weak alias environ. + * Note: Apparently we must initialize __environ for the weak environ + * symbol to be included. + */ + +char **__environ = 0; + /* * Now for our main routine. @@ -48,11 +60,6 @@ void __uClibc_main(int argc, char **argv, char **envp) */ __environ = envp; - /* Initialize the thread library at least a bit so at least - * errno will be properly setup */ - if (__pthread_initialize_minimal) - __pthread_initialize_minimal (); - #if 0 /* Some security at this point. Prevent starting a SUID binary * where the standard file descriptors are not opened. We have @@ -81,14 +88,6 @@ void __uClibc_main(int argc, char **argv, char **envp) exit(main(argc, argv, envp)); } -/* - * Declare the __environ global variable and create a weak alias environ. - * Note: Apparently we must initialize __environ for the weak environ - * symbol to be included. - */ - -char **__environ = 0; - #ifndef HAVE_ELF /* * Define an empty function and use it as a weak alias for the stdio diff --git a/libc/misc/internals/errno.c b/libc/misc/internals/errno.c new file mode 100644 index 000000000..06978c430 --- /dev/null +++ b/libc/misc/internals/errno.c @@ -0,0 +1,29 @@ +#if 0 +#include <features.h> +/* Unforunately, this produces noisy warnings... */ +int errno __attribute__ ((section (".bss"))); +int h_errno __attribute__ ((section (".bss"))); +weak_alias(errno, _errno); +weak_alias(h_errno, _h_errno); +#else +__asm__(" +.weak _errno; +_errno = errno +.weak _h_errno; +_h_errno = h_errno + +.bss +.globl errno +.type errno,%object +.size errno,4 +errno: + .space 4 + +.bss +.globl h_errno +.type h_errno,%object +.size h_errno,4 +h_errno: + .space 4 +"); +#endif |