diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/pt-socket.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/pt-socket.S | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/pt-socket.S b/nptl/sysdeps/unix/sysv/linux/i386/pt-socket.S index 0b8523bd86..d9140edcc5 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/pt-socket.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/pt-socket.S @@ -18,6 +18,7 @@ #include <sysdep.h> #include <socketcall.h> +#include <tls.h> #define P(a, b) P2(a, b) #define P2(a, b) a##b @@ -37,8 +38,34 @@ .globl __socket ENTRY (__socket) + cmpl $0, %gs:MULTIPLE_THREADS_OFFSET + jne 1f + + /* Save registers. */ + movl %ebx, %edx + + movl $SYS_ify(socketcall), %eax /* System call number in %eax. */ + + /* Use ## so `socket' is a separate token that might be #define'd. */ + movl $P(SOCKOP_,socket), %ebx /* Subcode is first arg to syscall. */ + lea 4(%esp), %ecx /* Address of args is 2nd arg. */ + + /* Do the system call trap. */ + int $0x80 + + /* Restore registers. */ + movl %edx, %ebx + + /* %eax is < 0 if there was an error. */ + cmpl $-125, %eax + jae SYSCALL_ERROR_LABEL + + /* Successful; return the syscall's value. */ + ret + + /* We need one more register. */ - pushl %esi +1: pushl %esi /* Enable asynchronous cancellation. */ call __libc_enable_asynccancel /* No @plt */ |