#include #include "perf_regs.h" #include "thread.h" #include "map.h" #include "event.h" #include "debug.h" #include "tests/tests.h" #include "arch-tests.h" #define STACK_SIZE 8192 static int sample_ustack(struct perf_sample *sample, struct thread *thread, u64 *regs) { struct stack_dump *stack = &sample->user_stack; struct map *map; unsigned long sp; u64 stack_size, *buf; buf = malloc(STACK_SIZE); if (!buf) { pr_debug("failed to allocate sample uregs data\n"); return -1; } sp = (unsigned long) regs[PERF_REG_POWERPC_R1]; map = map_groups__find(thread->mg, MAP__VARIABLE, (u64) sp); if (!map) { pr_debug("failed to get stack map\n"); free(buf); return -1; } stack_size = map->end - sp; stack_size = stack_size > STACK_SIZE ? STACK_SIZE : stack_size; memcpy(buf, (void *) sp, stack_size); stack->data = (char *) buf; stack->size = stack_size; return 0; } int test__arch_unwind_sample(struct perf_sample *sample, struct thread *thread) { struct regs_dump *regs = &sample->user_regs; u64 *buf; buf = calloc(1, sizeof(u64) * PERF_REGS_MAX); if (!buf) { pr_debug("failed to allocate sample uregs data\n"); return -1; } perf_regs_load(buf); regs->abi = PERF_SAMPLE_REGS_ABI; regs->regs = buf; regs->mask = PERF_REGS_MASK; return sample_ustack(sample, thread, buf); } lect> net-next plumbingsTobias Klauser
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authorHelge Deller <deller@gmx.de>2017-01-28 11:52:02 +0100
committerHelge Deller <deller@gmx.de>2017-01-28 21:54:23 +0100
commit2ad5d52d42810bed95100a3d912679d8864421ec (patch)
tree7f93e2f906b1c86f5b76c0f4c0978d41a8a29861 /fs/nfs/blocklayout
parent83b5d1e3d3013dbf90645a5d07179d018c8243fa (diff)
parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header
In swab.h the "#if BITS_PER_LONG > 32" breaks compiling userspace programs if BITS_PER_LONG is #defined by userspace with the sizeof() compiler builtin. Solve this problem by using __BITS_PER_LONG instead. Since we now #include asm/bitsperlong.h avoid further potential userspace pollution by moving the #define of SHIFT_PER_LONG to bitops.h which is not exported to userspace. This patch unbreaks compiling qemu on hppa/parisc. Signed-off-by: Helge Deller <deller@gmx.de> Cc: <stable@vger.kernel.org>
Diffstat (limited to 'fs/nfs/blocklayout')