Hi,
On Wednesday 21 December 2016 12:30 PM, Waldemar Brodkorb wrote:
Hi,
Rahul Bedarkar wrote,
Commit 3a45b87ac36f (modutils: support finit_module syscall) introduced
macro finit_module. But it is not defined for uClibc.
With uClibc, we get following build errors:
modutils/lib.a(modutils.o): In function `bb_init_module':
modutils.c:(.text.bb_init_module+0x94): undefined reference to `finit_module'
modutils.c:(.text.bb_init_module+0xa0): undefined reference to `finit_module'
This commit guards usage of finit_module when not using uClibc.
Do you have an idea why this error is not happening with glibc or
musl?
As mentioned in commit message, commit 3a45b87ac36f (modutils: support
finit_module syscall) has introduced macro finit_module which is defined
in else part of #ifdef __UCLIBC__ and in actual usage it is only guarded
for __NR_finit_module which leads to this error for uClibc only.
Following is code snippet from modutils.c where finit_module macro is
defined.
#ifdef __UCLIBC__
extern int init_module(void *module, unsigned long len, const char
*options);
extern int delete_module(const char *module, unsigned int flags);
#else
# include <sys/syscall.h>
# define init_module(mod, len, opts) syscall(__NR_init_module, mod, len,
opts)
# if defined(__NR_finit_module)
# define finit_module(fd, uargs, flags) syscall(__NR_finit_module, fd,
uargs, flags)
# endif
# define delete_module(mod, flags) syscall(__NR_delete_module, mod, flags)
#endif
Thanks,
Rahul
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