Emulation/switch-linux
1
0
Fork 0
mirror of https://github.com/fail0verflow/switch-linux.git synced 2025-05-04 02:34:21 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

[PARISC] fix "reduce size of task_struct on 64-bit machines" fallout

Browse source 
Amazingly, parisc was the only arch effected by this...
Convert register-sized loads/stores to always be 32-bit for these fields.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
This commit is contained in:
Kyle McMartin 2007-05-30 02:27:46 -04:00 • committed by Kyle McMartin
parent cb9577958d
commit 376e210b71
2 changed files with 3 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
arch/parisc/kernel/entry.S
View file

@ -2019,10 +2019,9 @@ ENTRY(syscall_exit)
STREG %r28,TASK_PT_GR28(%r1) STREG %r28,TASK_PT_GR28(%r1)
#ifdef CONFIG_HPUX #ifdef CONFIG_HPUX
/* <linux/personality.h> cannot be easily included */ /* <linux/personality.h> cannot be easily included */
#define PER_HPUX 0x10 #define PER_HPUX 0x10
LDREG TASK_PERSONALITY(%r1),%r19 ldw TASK_PERSONALITY(%r1),%r19
/* We can't use "CMPIB<> PER_HPUX" since "im5" field is sign extended */ /* We can't use "CMPIB<> PER_HPUX" since "im5" field is sign extended */
ldo -PER_HPUX(%r19), %r19 ldo -PER_HPUX(%r19), %r19
@ -2081,7 +2080,7 @@ syscall_restore:
/* Are we being ptraced? */ /* Are we being ptraced? */
LDREG TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1 LDREG TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
LDREG TASK_PTRACE(%r1), %r19 ldw TASK_PTRACE(%r1), %r19
bb,< %r19,31,syscall_restore_rfi bb,< %r19,31,syscall_restore_rfi
nop nop

2
arch/parisc/kernel/syscall.S
View file

@ -181,7 +181,7 @@ linux_gateway_entry:
/* Are we being ptraced? */ /* Are we being ptraced? */
mfctl %cr30, %r1 mfctl %cr30, %r1
LDREG TI_TASK(%r1),%r1 LDREG TI_TASK(%r1),%r1
LDREG TASK_PTRACE(%r1), %r1 ldw TASK_PTRACE(%r1), %r1
bb,<,n %r1,31,.Ltracesys bb,<,n %r1,31,.Ltracesys
/* Note! We cannot use the syscall table that is mapped /* Note! We cannot use the syscall table that is mapped