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Merge branch 'parisc-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Browse Source 
Pull more parisc updates from Helge Deller:

 - fix boot failure of 64-bit kernel. It got broken by the unwind
   optimization commit in merge window.

 - fix 64-bit userspace support (static 64-bit applications only, e.g.
   we don't yet have 64-bit userspace support in glibc).

 - consolidate unwind initialization code.

 - add machine model description to stack trace.

* 'parisc-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Add hardware description to stack traces
  parisc: Fix boot failure of 64-bit kernel
  parisc: Consolidate unwind initialization calls
  parisc: Update comments in syscall.S regarding wide userland
  parisc: Fix ptraced 64-bit applications to call 64-bit syscalls
  parisc: Restore possibility to execute 64-bit applications
This commit is contained in:
Linus Torvalds
2018-08-22 14:06:37 -07:00
parent 433bcf6737 dbf2a4b1ff
commit 45b74a65b9
12 changed files with 113 additions and 137 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
arch/parisc/include/asm/elf.h
View File

@@ -235,6 +235,7 @@ typedef unsigned long elf_greg_t;
#define SET_PERSONALITY(ex) \
({ \
set_personality((current->personality & ~PER_MASK) | PER_LINUX); \
clear_thread_flag(TIF_32BIT); \
current->thread.map_base = DEFAULT_MAP_BASE; \
current->thread.task_size = DEFAULT_TASK_SIZE; \
})
@@ -243,9 +244,11 @@ typedef unsigned long elf_greg_t;
#define COMPAT_SET_PERSONALITY(ex) \
({ \
set_thread_flag(TIF_32BIT); \
current->thread.map_base = DEFAULT_MAP_BASE32; \
current->thread.task_size = DEFAULT_TASK_SIZE32; \
if ((ex).e_ident[EI_CLASS] == ELFCLASS32) { \
set_thread_flag(TIF_32BIT); \
current->thread.map_base = DEFAULT_MAP_BASE32; \
current->thread.task_size = DEFAULT_TASK_SIZE32; \
} else clear_thread_flag(TIF_32BIT); \
})
/*

9
arch/parisc/include/asm/linkage.h
View File

@@ -22,15 +22,6 @@
name: ASM_NL\
.export name
#ifdef CONFIG_64BIT
#define ENDPROC(name) \
END(name)
#else
#define ENDPROC(name) \
.type name, @function !\
END(name)
#endif
#define ENTRY_CFI(name, ...) \
ENTRY(name) ASM_NL\
.proc ASM_NL\

6
arch/parisc/include/asm/processor.h
View File

@@ -256,11 +256,7 @@ on downward growing arches, it looks like this:
* it in here from the current->personality
*/
#ifdef CONFIG_64BIT
#define USER_WIDE_MODE (!test_thread_flag(TIF_32BIT))
#else
#define USER_WIDE_MODE 0
#endif
#define USER_WIDE_MODE (!is_32bit_task())
#define start_thread(regs, new_pc, new_sp) do { \
elf_addr_t *sp = (elf_addr_t *)new_sp; \

4
arch/parisc/include/asm/traps.h
View File

@@ -2,7 +2,9 @@
#ifndef __ASM_TRAPS_H
#define __ASM_TRAPS_H
#ifdef __KERNEL__
#define PARISC_ITLB_TRAP 6 /* defined by architecture. Do not change. */
#if !defined(__ASSEMBLY__)
struct pt_regs;
/* traps.c */

6
arch/parisc/include/asm/unwind.h
View File

@@ -73,8 +73,10 @@ unwind_table_remove(struct unwind_table *table);
void unwind_frame_init(struct unwind_frame_info *info, struct task_struct *t,
struct pt_regs *regs);
void unwind_frame_init_from_blocked_task(struct unwind_frame_info *info, struct task_struct *t);
void unwind_frame_init_running(struct unwind_frame_info *info, struct pt_regs *regs);
void unwind_frame_init_from_blocked_task(struct unwind_frame_info *info,
struct task_struct *t);
void unwind_frame_init_task(struct unwind_frame_info *info,
struct task_struct *task, struct pt_regs *regs);
int unwind_once(struct unwind_frame_info *info);
int unwind_to_user(struct unwind_frame_info *info);