A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-25 06:03:36 -04:00
Code Issues Projects Releases Packages Wiki Activity

powerpc: Make single-stepping emulation (mostly) usable on 32-bit

Browse source 
The sc instruction emulation can't be done the same way on 32-bit
as 64-bit yet, but this should work OK.

Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Paul Mackerras 2005-10-28 22:48:08 +10:00
commit c032524f0d
3 changed files with 28 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

8
include/asm-powerpc/reg.h
View file

@ -51,9 +51,17 @@
#define __MASK(X) (1UL<<(X))
#endif
#ifdef CONFIG_PPC64
#define MSR_SF __MASK(MSR_SF_LG) /* Enable 64 bit mode */
#define MSR_ISF __MASK(MSR_ISF_LG) /* Interrupt 64b mode valid on 630 */
#define MSR_HV __MASK(MSR_HV_LG) /* Hypervisor state */
#else
/* so tests for these bits fail on 32-bit */
#define MSR_SF 0
#define MSR_ISF 0
#define MSR_HV 0
#endif
#define MSR_VEC __MASK(MSR_VEC_LG) /* Enable AltiVec */
#define MSR_POW __MASK(MSR_POW_LG) /* Enable Power Management */
#define MSR_WE __MASK(MSR_WE_LG) /* Wait State Enable */

4
include/asm-ppc64/sstep.h → include/asm-powerpc/sstep.h
View file

@ -16,8 +16,10 @@ struct pt_regs;
* we don't allow putting a breakpoint on an mtmsrd instruction.
* Similarly we don't allow breakpoints on rfid instructions.
* These macros tell us if an instruction is a mtmsrd or rfid.
* Note that IS_MTMSRD returns true for both an mtmsr (32-bit)
* and an mtmsrd (64-bit).
*/
#define IS_MTMSRD(instr) (((instr) & 0xfc0007fe) == 0x7c000164)
#define IS_MTMSRD(instr) (((instr) & 0xfc0007be) == 0x7c000124)
#define IS_RFID(instr) (((instr) & 0xfc0007fe) == 0x4c000024)
/* Emulate instructions that cause a transfer of control. */