emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Make all syscall declarations use the syscall() function

Browse Source
This commit is contained in:
Eric Andersen
2003-05-26 18:48:56 +00:00
parent b0cfca7544
commit 82ab3d7c3e
3 changed files with 77 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
libbb/module_syscalls.c
View File

@@ -37,42 +37,47 @@
#if __GNU_LIBRARY__ < 5 || ((__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1))
/* These syscalls are not included as part of libc5 */
_syscall1(int, delete_module, const char *, name);
_syscall1(int, get_kernel_syms, __ptr_t, ks);
int delete_module(const char *name)
{
return(syscall(__NR_delete_module, name));
}
int get_kernel_syms(__ptr_t ks)
{
return(syscall(__NR_get_kernel_syms, ks));
}
/* This may have 5 arguments (for old 2.0 kernels) or 2 arguments
* (for 2.2 and 2.4 kernels). Use the greatest common denominator,
* and let the kernel cope with whatever it gets. Its good at that. */
_syscall5(int, init_module, void *, first, void *, second, void *, third,
void *, fourth, void *, fifth);
int init_module(void *first, void *second, void *third, void *fourth, void *fifth)
{
return(syscall(__NR_init_module, first, second, third, fourth, fifth));
}
int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret)
{
#ifndef __NR_query_module
#warning This kernel does not support the query_module syscall
#warning -> The query_module system call is being stubbed out...
int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret)
{
bb_error_msg("\n\nTo make this application work, you will need to recompile\n"
"with a kernel supporting the query_module system call. -Erik\n");
errno=ENOSYS;
return -1;
}
bb_error_msg("\n\nTo make this application work, you will need to recompile\n"
"BusyBox with a kernel supporting the query_module system call.\n");
errno=ENOSYS;
return -1;
#else
_syscall5(int, query_module, const char *, name, int, which,
void *, buf, size_t, bufsize, size_t*, ret);
return(syscall(__NR_query_module, name, which, buf, bufsize, ret));
#endif
}
/* Jump through hoops to fixup error return codes */
#define __NR___create_module __NR_create_module
static inline _syscall2(long, __create_module, const char *, name, size_t, size)
unsigned long create_module(const char *name, size_t size)
{
long ret = __create_module(name, size);
long ret = syscall(__NR_create_module, name, size);
if (ret == -1 && errno > 125) {
ret = -errno;
errno = 0;
}
return ret;
if (ret == -1 && errno > 125) {
ret = -errno;
errno = 0;
}
return ret;
}
#endif /* __GNU_LIBRARY__ < 5 */