diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-10-20 18:20:17 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-10-20 18:20:17 -0400 |
| commit | 9c323bff13f92832e03657cabdd70d731408d621 (patch) | |
| tree | 7dc45dcef880b55493a9ea8b69799ccf70a58b72 /arch/arm/kernel | |
| parent | 545ea16f7c42969f94c769d0c2267cf4a65e5850 (diff) | |
| parent | ee3eaee6a1dafb7ed7213ec2fad22552b4d58ed1 (diff) | |
Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
"Three fixes this time around:
- ensure sparse realises that we're building for a 32-bit arch on
64-bit hosts.
- use the correct instruction for semihosting on v7m (nommu) CPUs.
- reserve address 0 to prevent the first page of memory being used on
nommu systems"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8704/1: semihosting: use proper instruction on v7m processors
ARM: 8701/1: fix sparse flags for build on 64bit machines
ARM: 8700/1: nommu: always reserve address 0 away
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/debug.S | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S index ea9646cc2a0e..0a498cb3fad8 100644 --- a/arch/arm/kernel/debug.S +++ b/arch/arm/kernel/debug.S @@ -115,7 +115,11 @@ ENTRY(printascii) mov r1, r0 mov r0, #0x04 @ SYS_WRITE0 ARM( svc #0x123456 ) +#ifdef CONFIG_CPU_V7M + THUMB( bkpt #0xab ) +#else THUMB( svc #0xab ) +#endif ret lr ENDPROC(printascii) @@ -124,7 +128,11 @@ ENTRY(printch) strb r0, [r1] mov r0, #0x03 @ SYS_WRITEC ARM( svc #0x123456 ) +#ifdef CONFIG_CPU_V7M + THUMB( bkpt #0xab ) +#else THUMB( svc #0xab ) +#endif ret lr ENDPROC(printch) |