9b9e5479e
Mike Frysinger
2005-03-04
Subject
add some more comments
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Commit Diff GitHub →
libbb/syscalls.c+29 -30
| @@ -29,7 +29,7 @@ | |
| #include <sys/syscall.h> | |
| #include "libbb.h" | |
| - | int sysfs( int option, unsigned int fs_index, char * buf) |
| + | int sysfs(int option, unsigned int fs_index, char * buf) |
| { | |
| return(syscall(__NR_sysfs, option, fs_index, buf)); | |
| } | |
| @@ -39,37 +39,37 @@ int pivot_root(const char * new_root,const char * put_old) | |
| #ifndef __NR_pivot_root | |
| #warning This kernel does not support the pivot_root syscall | |
| #warning -> The pivot_root system call is being stubbed out... | |
| - | /* BusyBox was compiled against a kernel that did not support |
| - | * the pivot_root system call. To make this application work, |
| - | * you will need to recompile with a kernel supporting the |
| - | * pivot_root system call. |
| - | */ |
| - | bb_error_msg("\n\nTo make this application work, you will need to recompile\n" |
| - | "BusyBox with a kernel supporting the pivot_root system call.\n"); |
| - | errno=ENOSYS; |
| - | return -1; |
| + | /* BusyBox was compiled against a kernel that did not support |
| + | * the pivot_root system call. To make this application work, |
| + | * you will need to recompile with a kernel supporting the |
| + | * pivot_root system call. |
| + | */ |
| + | bb_error_msg("\n\nTo make this application work, you will need to recompile\n" |
| + | "BusyBox with a kernel supporting the pivot_root system call.\n"); |
| + | errno = ENOSYS; |
| + | return -1; |
| #else | |
| - | return(syscall(__NR_pivot_root, new_root, put_old)); |
| - | #endif |
| + | return(syscall(__NR_pivot_root, new_root, put_old)); |
| + | #endif /* __NR_pivot_root */ |
| } | |
| - | |
| - | /* These syscalls are not included in ancient glibc versions */ |
| + | /* These syscalls are not included in ancient glibc versions, |
| + | so we have to define them ourselves, whee ! */ |
| #if ((__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)) | |
| int bdflush(int func, int data) | |
| { | |
| - | return(syscall(__NR_bdflush, func, data)); |
| + | return(syscall(__NR_bdflush, func, data)); |
| } | |
| #ifndef __alpha__ | |
| # define __NR_klogctl __NR_syslog | |
| int klogctl(int type, char *b, int len) | |
| { | |
| - | return(syscall(__NR_klogctl, type, b, len)); |
| + | return(syscall(__NR_klogctl, type, b, len)); |
| } | |
| - | #endif |
| + | #endif /* __alpha__ */ |
| int umount2(const char * special_file, int flags) | |
| @@ -77,22 +77,21 @@ int umount2(const char * special_file, int flags) | |
| #ifndef __NR_pivot_root | |
| #warning This kernel does not support the umount2 syscall | |
| #warning -> The umount2 system call is being stubbed out... | |
| - | /* BusyBox was compiled against a kernel that did not support |
| - | * the umount2 system call. To make this application work, |
| - | * you will need to recompile with a kernel supporting the |
| - | * umount2 system call. |
| - | */ |
| - | bb_error_msg("\n\nTo make this application work, you will need to recompile\n" |
| - | "BusyBox with a kernel supporting the umount2 system call.\n"); |
| - | errno=ENOSYS; |
| - | return -1; |
| + | /* BusyBox was compiled against a kernel that did not support |
| + | * the umount2 system call. To make this application work, |
| + | * you will need to recompile with a kernel supporting the |
| + | * umount2 system call. |
| + | */ |
| + | bb_error_msg("\n\nTo make this application work, you will need to recompile\n" |
| + | "BusyBox with a kernel supporting the umount2 system call.\n"); |
| + | errno = ENOSYS; |
| + | return -1; |
| #else | |
| - | return(syscall(__NR_umount2, special_file, flags)); |
| - | #endif |
| + | return(syscall(__NR_umount2, special_file, flags)); |
| + | #endif /* __NR_pivot_root */ |
| } | |
| - | |
| - | #endif |
| + | #endif /* old glibc check */ |
| /* END CODE */ | |