diff options
| author | Guo Ren | 2019-04-01 13:06:09 +0200 |
|---|---|---|
| committer | Guo Ren | 2019-04-22 07:44:57 +0200 |
| commit | bf241682936293291dcf40fd93cdd0f5e6222902 (patch) | |
| tree | 075f2dfe3861e15cc615bcc39990a744e5f6d1a2 /arch/csky/abiv1 | |
| parent | csky: Use in_syscall & forget_syscall instead of r11_sig (diff) | |
| download | kernel-qcow2-linux-bf241682936293291dcf40fd93cdd0f5e6222902.tar.gz kernel-qcow2-linux-bf241682936293291dcf40fd93cdd0f5e6222902.tar.xz kernel-qcow2-linux-bf241682936293291dcf40fd93cdd0f5e6222902.zip | |
csky: Reconstruct signal processing
Linux kernel has provided some apis for arch signal's implementation.
For example:
restore_saved_sigmask()
set_current_blocked()
restore_altstack()
But in last version of csky signal.c didn't use them and some codes are
confusing, so reconstruct signal.c with reference to riscv's code.
Now csky signal.c implementation are very close to riscv and we can
get the following benefits:
- Clear code structure
- The signal code of riscv and csky can be reviewed together
- Promoting the unification of arch's signal implementation
Also modified the related code in entry.S
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/csky/abiv1')
| -rw-r--r-- | arch/csky/abiv1/inc/abi/entry.h | 7 | ||||
| -rw-r--r-- | arch/csky/abiv1/inc/abi/regdef.h | 2 |
2 files changed, 2 insertions, 7 deletions
diff --git a/arch/csky/abiv1/inc/abi/entry.h b/arch/csky/abiv1/inc/abi/entry.h index 7dacce4c0f15..4a485b142be1 100644 --- a/arch/csky/abiv1/inc/abi/entry.h +++ b/arch/csky/abiv1/inc/abi/entry.h @@ -16,9 +16,6 @@ #define LSAVE_A4 40 #define LSAVE_A5 44 -#define EPC_INCREASE 2 -#define EPC_KEEP 0 - .macro USPTOKSP mtcr sp, ss1 mfcr sp, ss0 @@ -29,10 +26,6 @@ mfcr sp, ss1 .endm -.macro INCTRAP rx - addi \rx, EPC_INCREASE -.endm - .macro SAVE_ALL epc_inc mtcr r13, ss2 mfcr r13, epsr diff --git a/arch/csky/abiv1/inc/abi/regdef.h b/arch/csky/abiv1/inc/abi/regdef.h index 9e7e692dd271..729b1c3edcfd 100644 --- a/arch/csky/abiv1/inc/abi/regdef.h +++ b/arch/csky/abiv1/inc/abi/regdef.h @@ -21,4 +21,6 @@ #define SYSTRACE_SAVENUM 2 +#define TRAP0_SIZE 2 + #endif /* __ASM_CSKY_REGDEF_H */ |