Bug 2988

Summary: ftracing i386 program on x86-64
Product: frysk Reporter: Andrew Cagney <cagney>
Component: generalAssignee: Unassigned <frysk-bugzilla>
Status: NEW ---    
Severity: normal CC: qiyaoltc
Priority: P3    
Version: unspecified   
Target Milestone: ---   
Host: Target:
Build: Last reconfirmed:
Bug Depends on:    
Bug Blocks: 2245    

Description Andrew Cagney 2006-08-01 13:28:42 UTC
The i386 and x86-64 system call tables are different.  When a 64-bit ftrace
tracks a 32-bit app, it needs to:

- use the 32-bit system call table
- project the 32-bit register set onto the underlying 64-bit register set
Comment 1 Andrew Cagney 2006-08-01 13:30:11 UTC
Down stream Fedora bug:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=200893
Comment 2 Yao Qi 2006-08-31 16:04:58 UTC
It is similar for ppc32 app on ppc64.
Comment 3 Wu Zhou 2006-09-28 15:45:23 UTC
This kind of bugs belongs to bi-arch ones.  What about creating a new tracker
for them.  So that we can know how it works in general?