diff options
| author | Mark Salter <msalter@redhat.com> | 2014-04-05 15:25:49 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-05-21 19:06:59 +0100 |
| commit | 078511edeb9c152d10e75233b535d730918aa213 (patch) | |
| tree | ac72624238e9f01223ea9a4888c53072e1841b6d | |
| parent | e9fb47bddd30616455f108efd89312b7ce06c742 (diff) | |
arm64: fix !CONFIG_COMPAT build failures
Recent arm64 builds using CONFIG_ARM64_64K_PAGES are failing with:
arch/arm64/kernel/perf_regs.c: In function ‘perf_reg_abi’:
arch/arm64/kernel/perf_regs.c:41:2: error: implicit declaration of function ‘is_compat_thread’
arch/arm64/kernel/perf_event.c:1398:2: error: unknown type name ‘compat_uptr_t’
This is due to some recent arm64 perf commits with compat support:
commit 23c7d70d55c6d9:
ARM64: perf: add support for frame pointer unwinding in compat mode
commit 2ee0d7fd36a3f8:
ARM64: perf: add support for perf registers API
Those patches make the arm64 kernel unbuildable if CONFIG_COMPAT is not
defined and CONFIG_ARM64_64K_PAGES depends on !CONFIG_COMPAT. This patch
allows the arm64 kernel to build with and without CONFIG_COMPAT.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit ff268ff7f32bf5388b7422f0c0773d88add23423)
Signed-off-by: Mark Brown <broonie@linaro.org>
| -rw-r--r-- | arch/arm64/kernel/perf_event.c | 4 | ||||
| -rw-r--r-- | arch/arm64/kernel/perf_regs.c | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index 1b020200fffa..3047c6ad0a8d 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -1374,6 +1374,7 @@ user_backtrace(struct frame_tail __user *tail, return buftail.fp; } +#ifdef CONFIG_COMPAT /* * The registers we're interested in are at the end of the variable * length saved register structure. The fp points at the end of this @@ -1418,6 +1419,7 @@ compat_user_backtrace(struct compat_frame_tail __user *tail, return (struct compat_frame_tail __user *)compat_ptr(buftail.fp) - 1; } +#endif /* CONFIG_COMPAT */ void perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs) @@ -1439,6 +1441,7 @@ void perf_callchain_user(struct perf_callchain_entry *entry, tail && !((unsigned long)tail & 0xf)) tail = user_backtrace(tail, entry); } else { +#ifdef CONFIG_COMPAT /* AARCH32 compat mode */ struct compat_frame_tail __user *tail; @@ -1447,6 +1450,7 @@ void perf_callchain_user(struct perf_callchain_entry *entry, while ((entry->nr < PERF_MAX_STACK_DEPTH) && tail && !((unsigned long)tail & 0x3)) tail = compat_user_backtrace(tail, entry); +#endif } } diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c index f2d6f0a36d63..422ebd63b619 100644 --- a/arch/arm64/kernel/perf_regs.c +++ b/arch/arm64/kernel/perf_regs.c @@ -2,6 +2,8 @@ #include <linux/kernel.h> #include <linux/perf_event.h> #include <linux/bug.h> + +#include <asm/compat.h> #include <asm/perf_regs.h> #include <asm/ptrace.h> |