diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2002-09-18 07:33:20 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2002-09-18 07:33:20 +0000 |
| commit | b7cb624be9f0a59198e1a5f44cdee0a215440d27 (patch) | |
| tree | 5a3f32cfa79a3ca2f1c69b14d45e4071fbe243f5 /sysdeps/unix/sysv/linux/i386/clone.S | |
| parent | f2d02920c3a25287c0d9d51340fa2ef54514abe3 (diff) | |
| download | glibc-b7cb624be9f0a59198e1a5f44cdee0a215440d27.tar.gz glibc-b7cb624be9f0a59198e1a5f44cdee0a215440d27.tar.xz glibc-b7cb624be9f0a59198e1a5f44cdee0a215440d27.zip | |
Update.
2002-09-18 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/i386/clone.S: Add support for SETTLS and SETTID/CLEARTID. * signal/allocrtsig.c: Move to... * sysdeps/generic/allocrtsig.c: ...here. New file.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/clone.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/clone.S | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/clone.S b/sysdeps/unix/sysv/linux/i386/clone.S index 9865ebd948..64c0778fd7 100644 --- a/sysdeps/unix/sysv/linux/i386/clone.S +++ b/sysdeps/unix/sysv/linux/i386/clone.S @@ -27,13 +27,19 @@ #include <bp-sym.h> #include <bp-asm.h> -/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */ +/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg, + pid_t *tid, struct user_desc *tls); */ #define PARMS LINKAGE /* no space for saved regs */ #define FUNC PARMS #define STACK FUNC+4 #define FLAGS STACK+PTR_SIZE #define ARG FLAGS+4 +#define TID ARG+PTR_SIZE +#define TLS TID+PTR_SIZE + +#define __NR_clone 120 +#define SYS_clone 120 .text ENTRY (BP_SYM (__clone)) @@ -55,30 +61,34 @@ ENTRY (BP_SYM (__clone)) #endif /* Insert the argument onto the new stack. */ - subl $8,%ecx + subl $12,%ecx movl ARG(%esp),%eax /* no negative argument counts */ - movl %eax,4(%ecx) + movl %eax,8(%ecx) /* Save the function pointer as the zeroth argument. It will be popped off in the child in the ebx frobbing below. */ movl FUNC(%esp),%eax - movl %eax,0(%ecx) + movl %eax,4(%ecx) /* Do the system call */ pushl %ebx - movl FLAGS+4(%esp),%ebx + pushl %esi + movl TLS+8(%esp),%esi + movl TID+8(%esp),%edx + movl FLAGS+8(%esp),%ebx movl $SYS_ify(clone),%eax int $0x80 + popl %esi popl %ebx test %eax,%eax jl SYSCALL_ERROR_LABEL - jz thread_start + jz L(thread_start) L(pseudo_end): ret -thread_start: +L(thread_start): subl %ebp,%ebp /* terminate the stack frame */ call *%ebx #ifdef PIC @@ -87,8 +97,9 @@ L(here): popl %ebx addl $_GLOBAL_OFFSET_TABLE_+[.-L(here)], %ebx #endif - pushl %eax - call HIDDEN_JUMPTARGET (_exit) + movl %eax, %ebx + movl $SYS_ify(exit), %eax + int $0x80 PSEUDO_END (BP_SYM (__clone)) |