mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-03 23:58:05 +00:00
tools/nolibc: fix up undeclared syscall macros with #ifdef and -ENOSYS
Compiling nolibc for rv32 got such errors: nolibc/sysroot/riscv/include/sys.h: In function ‘sys_gettimeofday’: nolibc/sysroot/riscv/include/sys.h:557:21: error: ‘__NR_gettimeofday’ undeclared (first use in this function); did you mean ‘sys_gettimeofday’? 557 | return my_syscall2(__NR_gettimeofday, tv, tz); | ^~~~~~~~~~~~~~~~~ nolibc/sysroot/riscv/include/sys.h: In function ‘sys_lseek’: nolibc/sysroot/riscv/include/sys.h:675:21: error: ‘__NR_lseek’ undeclared (first use in this function) 675 | return my_syscall3(__NR_lseek, fd, offset, whence); | ^~~~~~~~~~ nolibc/sysroot/riscv/include/sys.h: In function ‘sys_wait4’: nolibc/sysroot/riscv/include/sys.h:1341:21: error: ‘__NR_wait4’ undeclared (first use in this function) 1341 | return my_syscall4(__NR_wait4, pid, status, options, rusage); If a syscall macro is not supported by a target platform, wrap it with '#ifdef' and 'return -ENOSYS' for the '#else' branch, which lets the other syscalls work as-is and allows developers to fix up the test failures reported by nolibc-test one by one later. This wraps all of the failed syscall macros with '#ifdef' and 'return -ENOSYS' for the '#else' branch, so, all of the undeclared failures are fixed. Suggested-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/linux-riscv/5e7d2adf-e96f-41ca-a4c6-5c87a25d4c9c@app.fastmail.com/ Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Zhangjin Wu <falcon@tinylab.org> Signed-off-by: Willy Tarreau <w@1wt.eu>
This commit is contained in:
parent
ca50df3098
commit
2f98aca8aa
1 changed files with 12 additions and 0 deletions
|
@ -554,7 +554,11 @@ long getpagesize(void)
|
|||
static __attribute__((unused))
|
||||
int sys_gettimeofday(struct timeval *tv, struct timezone *tz)
|
||||
{
|
||||
#ifdef __NR_gettimeofday
|
||||
return my_syscall2(__NR_gettimeofday, tv, tz);
|
||||
#else
|
||||
return -ENOSYS;
|
||||
#endif
|
||||
}
|
||||
|
||||
static __attribute__((unused))
|
||||
|
@ -672,7 +676,11 @@ int link(const char *old, const char *new)
|
|||
static __attribute__((unused))
|
||||
off_t sys_lseek(int fd, off_t offset, int whence)
|
||||
{
|
||||
#ifdef __NR_lseek
|
||||
return my_syscall3(__NR_lseek, fd, offset, whence);
|
||||
#else
|
||||
return -ENOSYS;
|
||||
#endif
|
||||
}
|
||||
|
||||
static __attribute__((unused))
|
||||
|
@ -1338,7 +1346,11 @@ int unlink(const char *path)
|
|||
static __attribute__((unused))
|
||||
pid_t sys_wait4(pid_t pid, int *status, int options, struct rusage *rusage)
|
||||
{
|
||||
#ifdef __NR_wait4
|
||||
return my_syscall4(__NR_wait4, pid, status, options, rusage);
|
||||
#else
|
||||
return -ENOSYS;
|
||||
#endif
|
||||
}
|
||||
|
||||
static __attribute__((unused))
|
||||
|
|
Loading…
Reference in a new issue