diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2017-01-09 04:45:48 +0100 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2017-01-10 20:51:33 +0100 |
| commit | ecd43afdbe72017aefe48080631eb625e177ef4d (patch) | |
| tree | 6df7b0bc6670f85116f1d256ed7df55885b910d9 /arch/arc/include/asm/entry-arcv2.h | |
| parent | ARCv2: IRQ: Call entry/exit functions for chained handlers in MCIP (diff) | |
| download | linux-ecd43afdbe72017aefe48080631eb625e177ef4d.tar.xz linux-ecd43afdbe72017aefe48080631eb625e177ef4d.zip | |
ARCv2: save r30 on kernel entry as gcc uses it for code-gen
This is not exposed to userspace debugers yet, which can be done
independently as a seperate patch !
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/include/asm/entry-arcv2.h')
| -rw-r--r-- | arch/arc/include/asm/entry-arcv2.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arc/include/asm/entry-arcv2.h b/arch/arc/include/asm/entry-arcv2.h index b5ff87e6f4b7..aee1a77934cf 100644 --- a/arch/arc/include/asm/entry-arcv2.h +++ b/arch/arc/include/asm/entry-arcv2.h @@ -16,6 +16,7 @@ ; ; Now manually save: r12, sp, fp, gp, r25 + PUSH r30 PUSH r12 ; Saving pt_regs->sp correctly requires some extra work due to the way @@ -72,6 +73,7 @@ POPAX AUX_USER_SP 1: POP r12 + POP r30 .endm |