Commit 0e216fa5 authored by Benjamin Gray's avatar Benjamin Gray Committed by Michael Ellerman
Browse files

Documentation/powerpc: Fix ptrace request names 



The documented ptrace request names are currently wrong/incomplete.
Fix this to improve correctness and searchability.

Signed-off-by: default avatarBenjamin Gray <bgray@linux.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230725005841.28854-2-bgray@linux.ibm.com
parent 53834a0c

Documentation/powerpc/ptrace.rst

+4 −4
Original line number Diff line number Diff line
@@ -15,7 +15,7 @@ that's extendable and that covers both BookE and server processors, so 
that GDB doesn't need to special-case each of them. We added the

following 3 new ptrace requests.



1. PTRACE_PPC_GETHWDEBUGINFO

1. PPC_PTRACE_GETHWDBGINFO

============================



Query for GDB to discover the hardware debug features. The main info to
@@ -48,7 +48,7 @@ features will have bits indicating whether there is support for:: 
  #define PPC_DEBUG_FEATURE_DATA_BP_DAWR		0x10

  #define PPC_DEBUG_FEATURE_DATA_BP_ARCH_31		0x20



2. PTRACE_SETHWDEBUG

2. PPC_PTRACE_SETHWDEBUG



Sets a hardware breakpoint or watchpoint, according to the provided structure::
@@ -88,7 +88,7 @@ that the BookE supports. COMEFROM breakpoints available in server processors 
are not contemplated, but that is out of the scope of this work.



ptrace will return an integer (handle) uniquely identifying the breakpoint or

watchpoint just created. This integer will be used in the PTRACE_DELHWDEBUG

watchpoint just created. This integer will be used in the PPC_PTRACE_DELHWDEBUG

request to ask for its removal. Return -ENOSPC if the requested breakpoint

can't be allocated on the registers.
@@ -150,7 +150,7 @@ Some examples of using the structure to: 
    p.addr2           = (uint64_t) end_range;

    p.condition_value = 0;



3. PTRACE_DELHWDEBUG

3. PPC_PTRACE_DELHWDEBUG



Takes an integer which identifies an existing breakpoint or watchpoint

(i.e., the value returned from PTRACE_SETHWDEBUG), and deletes the