diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2017-05-24 20:49:02 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2017-06-23 23:46:04 +0200 |
| commit | 041cdc2769407c4d3869b218ad7ee7638e1c306e (patch) | |
| tree | 1ea25250d74dcb230cf5feee99226fc080dbd678 /libc/sysdeps/linux/sparc64/fork.S | |
| parent | 58a5ba12bffad5916d9897c2870fc483f1db8282 (diff) | |
sparc64: add basic support
No NPTL, no LDSO support.
Bootup with Busybox Ash in Qemu working.
Testuite shows only two failures, but mksh continue/break
support doesn't work.
Diffstat (limited to 'libc/sysdeps/linux/sparc64/fork.S')
| -rw-r--r-- | libc/sysdeps/linux/sparc64/fork.S | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sparc64/fork.S b/libc/sysdeps/linux/sparc64/fork.S new file mode 100644 index 000000000..55c5e8d5c --- /dev/null +++ b/libc/sysdeps/linux/sparc64/fork.S @@ -0,0 +1,32 @@ +/* + * The fork and vfork system calls are special on sparc64: + * they return the "other process" pid in %o0 and the + * "is child" flag in %o1 + */ + +#include <features.h> +#include <sys/syscall.h> + +.text +.global fork +.type fork, @function +.align 4 + +fork: + mov __NR_fork, %g1 + ta 0x6d + sub %o1, 1, %o1 + bcc,pt %xcc, 1f + and %o0, %o1, %o0 + sethi %hi(errno), %g4 + or %g4, %lo(errno), %g4 + st %o0, [%g4] + retl + mov -1, %o0 +1: + retl + nop + +.size fork, . - fork + +libc_hidden_def(fork) |