diff options
| author |   Helge Deller <deller@gmx.de> | 2018-08-16 22:39:50 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2018-08-17 16:45:24 +0200 |
| commit | 5b00ca0b8035e49ef7c466e959c5cb457a654351 (patch) | |
| tree | 960ff146c537f96aa4da21030960c7981bd86ae0 /arch/parisc/include/asm | |
| parent | parisc: Fix and improve kernel stack unwinding (diff) | |
| download | linux-dev-5b00ca0b8035e49ef7c466e959c5cb457a654351.tar.xz linux-dev-5b00ca0b8035e49ef7c466e959c5cb457a654351.zip | |
parisc: Restore possibility to execute 64-bit applications
Executing 64-bit applications was broken. This patch restores this
support and cleans up some code paths.
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/include/asm')
| -rw-r--r-- | arch/parisc/include/asm/elf.h | 9 | ||||
| -rw-r--r-- | arch/parisc/include/asm/processor.h | 6 | ||||
| -rw-r--r-- | arch/parisc/include/asm/traps.h | 4 |
3 files changed, 10 insertions, 9 deletions
diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h index f019d3ec0c1c..d00973aab7f1 100644 --- a/arch/parisc/include/asm/elf.h +++ b/arch/parisc/include/asm/elf.h @@ -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); \ }) /* diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h index 2dbe5580a1a4..2bd5e695bdad 100644 --- a/arch/parisc/include/asm/processor.h +++ b/arch/parisc/include/asm/processor.h @@ -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; \ diff --git a/arch/parisc/include/asm/traps.h b/arch/parisc/include/asm/traps.h index e00013248907..8ecc1f0c0483 100644 --- a/arch/parisc/include/asm/traps.h +++ b/arch/parisc/include/asm/traps.h @@ -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 */ |