diff options
Diffstat (limited to 'libc/sysdeps/linux/x86_64')
| -rw-r--r-- | libc/sysdeps/linux/x86_64/bits/fcntl.h | 7 | ||||
| -rw-r--r-- | libc/sysdeps/linux/x86_64/crt1.S | 16 |
2 files changed, 20 insertions, 3 deletions
diff --git a/libc/sysdeps/linux/x86_64/bits/fcntl.h b/libc/sysdeps/linux/x86_64/bits/fcntl.h index bb75b76e0..3547a2046 100644 --- a/libc/sysdeps/linux/x86_64/bits/fcntl.h +++ b/libc/sysdeps/linux/x86_64/bits/fcntl.h @@ -54,6 +54,7 @@ # define O_DIRECT 040000 /* Direct disk access. */ # define O_NOATIME 01000000 /* Do not set atime. */ # define O_PATH 010000000 /* Resolve pathname but do not open file. */ +# define O_TMPFILE 020200000 /* Atomically create nameless file. */ #endif /* For now Linux has synchronisity options for data and read operations. @@ -115,11 +116,13 @@ # define F_SETLEASE 1024 /* Set a lease. */ # define F_GETLEASE 1025 /* Enquire what lease is active. */ # define F_NOTIFY 1026 /* Request notfications on a directory. */ -# define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with - close-on-exit set on new fd. */ # define F_SETPIPE_SZ 1031 /* Set pipe page size array. */ # define F_GETPIPE_SZ 1032 /* Get pipe page size array. */ #endif +#if defined __USE_XOPEN2K8 || defined __USE_GNU +# define F_DUPFD_CLOEXEC 1030 /* Duplicate file descriptor with + close-on-exit set on new fd. */ +#endif /* For F_[GET|SET]FD. */ #define FD_CLOEXEC 1 /* actually anything with low bit set goes */ diff --git a/libc/sysdeps/linux/x86_64/crt1.S b/libc/sysdeps/linux/x86_64/crt1.S index 87777dd5d..701cbf2f6 100644 --- a/libc/sysdeps/linux/x86_64/crt1.S +++ b/libc/sysdeps/linux/x86_64/crt1.S @@ -80,6 +80,20 @@ _start: the outermost frame obviously. */ xorl %ebp, %ebp +#ifdef L_rcrt1 + pushq %rdi /* save rdi (but should be 0...) */ + pushq %rdx /* store rdx (rtld_fini) */ + xorq %rcx, %rcx /* ensure rcx is 0 */ + addq _start@GOTPCREL(%rip), %rcx /* get offset of _start from beginning of file */ + movq _start@GOTPCREL(%rip), %rax /* get run time address of _start */ + subq %rcx, %rax /* calculate run time load offset */ + movq %rax, %rdi /* load offset -> param 1 */ + call reloc_static_pie /* relocate dynamic addrs */ + xorq %rax, %rax /* cleanup */ + popq %rdx + popq %rdi +#endif + /* Extract the arguments as encoded on the stack and set up the arguments for __libc_start_main (int (*main) (int, char **, char **), int argc, char *argv, @@ -107,7 +121,7 @@ _start: which grow downwards). */ pushq %rsp -#if defined(L_Scrt1) +#if defined(L_Scrt1) || defined(L_rcrt1) /* Give address for main() */ movq main@GOTPCREL(%rip), %rdi |