From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/tools/perf/util/unwind-libunwind.c | 30 ++++++++++++++++++++---------- 1 file changed, 20 insertions(+), 10 deletions(-) (limited to 'kernel/tools/perf/util/unwind-libunwind.c') diff --git a/kernel/tools/perf/util/unwind-libunwind.c b/kernel/tools/perf/util/unwind-libunwind.c index 7b09a443a..c83832b55 100644 --- a/kernel/tools/perf/util/unwind-libunwind.c +++ b/kernel/tools/perf/util/unwind-libunwind.c @@ -269,13 +269,14 @@ static int read_unwind_spec_eh_frame(struct dso *dso, struct machine *machine, u64 offset = dso->data.eh_frame_hdr_offset; if (offset == 0) { - fd = dso__data_fd(dso, machine); + fd = dso__data_get_fd(dso, machine); if (fd < 0) return -EINVAL; /* Check the .eh_frame section for unwinding info */ offset = elf_section_offset(fd, ".eh_frame_hdr"); dso->data.eh_frame_hdr_offset = offset; + dso__data_put_fd(dso); } if (offset) @@ -294,13 +295,14 @@ static int read_unwind_spec_debug_frame(struct dso *dso, u64 ofs = dso->data.debug_frame_offset; if (ofs == 0) { - fd = dso__data_fd(dso, machine); + fd = dso__data_get_fd(dso, machine); if (fd < 0) return -EINVAL; /* Check the .debug_frame section for unwinding info */ ofs = elf_section_offset(fd, ".debug_frame"); dso->data.debug_frame_offset = ofs; + dso__data_put_fd(dso); } *offset = ofs; @@ -328,6 +330,7 @@ find_proc_info(unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi, struct map *map; unw_dyn_info_t di; u64 table_data, segbase, fde_count; + int ret = -EINVAL; map = find_map(ip, ui); if (!map || !map->dso) @@ -346,26 +349,33 @@ find_proc_info(unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi, di.u.rti.table_data = map->start + table_data; di.u.rti.table_len = fde_count * sizeof(struct table_entry) / sizeof(unw_word_t); - return dwarf_search_unwind_table(as, ip, &di, pi, - need_unwind_info, arg); + ret = dwarf_search_unwind_table(as, ip, &di, pi, + need_unwind_info, arg); } #ifndef NO_LIBUNWIND_DEBUG_FRAME /* Check the .debug_frame section for unwinding info */ - if (!read_unwind_spec_debug_frame(map->dso, ui->machine, &segbase)) { - int fd = dso__data_fd(map->dso, ui->machine); + if (ret < 0 && + !read_unwind_spec_debug_frame(map->dso, ui->machine, &segbase)) { + int fd = dso__data_get_fd(map->dso, ui->machine); int is_exec = elf_is_exec(fd, map->dso->name); unw_word_t base = is_exec ? 0 : map->start; + const char *symfile; + + if (fd >= 0) + dso__data_put_fd(map->dso); + + symfile = map->dso->symsrc_filename ?: map->dso->name; memset(&di, 0, sizeof(di)); - if (dwarf_find_debug_frame(0, &di, ip, base, map->dso->name, + if (dwarf_find_debug_frame(0, &di, ip, base, symfile, map->start, map->end)) return dwarf_search_unwind_table(as, ip, &di, pi, need_unwind_info, arg); } #endif - return -EINVAL; + return ret; } static int access_fpreg(unw_addr_space_t __maybe_unused as, @@ -456,7 +466,7 @@ static int access_mem(unw_addr_space_t __maybe_unused as, if (ret) { pr_debug("unwind: access_mem %p not inside range" " 0x%" PRIx64 "-0x%" PRIx64 "\n", - (void *) addr, start, end); + (void *) (uintptr_t) addr, start, end); *valp = 0; return ret; } @@ -466,7 +476,7 @@ static int access_mem(unw_addr_space_t __maybe_unused as, offset = addr - start; *valp = *(unw_word_t *)&stack->data[offset]; pr_debug("unwind: access_mem addr %p val %lx, offset %d\n", - (void *) addr, (unsigned long)*valp, offset); + (void *) (uintptr_t) addr, (unsigned long)*valp, offset); return 0; } -- cgit 1.2.3-korg