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| author | Roland McGrath <roland@redhat.com> | 2008-07-09 11:38:07 +0200 |
|---|---|---|
| committer | Roland McGrath <roland@redhat.com> | 2008-07-16 21:15:17 +0200 |
| commit | d4d67150165df8bf1cc05e532f6efca96f907cab (patch) | |
| tree | 390d5951231c2a1d97d6453d70c42da7af49eeae /include/asm-x86/ptrace-abi.h | |
| parent | x86 ptrace: unify TIF_SINGLESTEP (diff) | |
| download | linux-d4d67150165df8bf1cc05e532f6efca96f907cab.tar.xz linux-d4d67150165df8bf1cc05e532f6efca96f907cab.zip | |
x86 ptrace: unify syscall tracing
This unifies and cleans up the syscall tracing code on i386 and x86_64.
Using a single function for entry and exit tracing on 32-bit made the
do_syscall_trace() into some terrible spaghetti. The logic is clear and
simple using separate syscall_trace_enter() and syscall_trace_leave()
functions as on 64-bit.
The unification adds PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP support
on x86_64, for 32-bit ptrace() callers and for 64-bit ptrace() callers
tracing either 32-bit or 64-bit tasks. It behaves just like 32-bit.
Changing syscall_trace_enter() to return the syscall number shortens
all the assembly paths, while adding the SYSEMU feature in a simple way.
Signed-off-by: Roland McGrath <roland@redhat.com>
Diffstat (limited to 'include/asm-x86/ptrace-abi.h')
| -rw-r--r-- | include/asm-x86/ptrace-abi.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h index f224eb3c3157..72e7b9db29bb 100644 --- a/include/asm-x86/ptrace-abi.h +++ b/include/asm-x86/ptrace-abi.h @@ -73,11 +73,11 @@ #ifdef __x86_64__ # define PTRACE_ARCH_PRCTL 30 -#else -# define PTRACE_SYSEMU 31 -# define PTRACE_SYSEMU_SINGLESTEP 32 #endif +#define PTRACE_SYSEMU 31 +#define PTRACE_SYSEMU_SINGLESTEP 32 + #define PTRACE_SINGLEBLOCK 33 /* resume execution until next branch */ #ifndef __ASSEMBLY__ |