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author | Christopher Ferris <cferris@google.com> | 2014-01-16 12:41:46 -0800 |
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committer | Christopher Ferris <cferris@google.com> | 2014-01-16 17:42:55 -0800 |
commit | 943af7dab1454517c5bd11a31ab99f260afb22d1 (patch) | |
tree | 0c8101f7d24eee3ff02ed324e34333a83853194f /runtime/mem_map.cc | |
parent | 00e7f2e935d98f0eb14f5ef1d376604d0054bf5e (diff) | |
download | art-943af7dab1454517c5bd11a31ab99f260afb22d1.tar.gz art-943af7dab1454517c5bd11a31ab99f260afb22d1.tar.bz2 art-943af7dab1454517c5bd11a31ab99f260afb22d1.zip |
Change to support new BacktraceMap.
Change-Id: I291313583dca2c8e1e946504c442f5810f0fb477
Diffstat (limited to 'runtime/mem_map.cc')
-rw-r--r-- | runtime/mem_map.cc | 42 |
1 files changed, 25 insertions, 17 deletions
diff --git a/runtime/mem_map.cc b/runtime/mem_map.cc index 39e838f457..97b34ef8c0 100644 --- a/runtime/mem_map.cc +++ b/runtime/mem_map.cc @@ -16,7 +16,7 @@ #include "mem_map.h" -#include <backtrace/backtrace.h> +#include <backtrace/BacktraceMap.h> #include "base/stringprintf.h" #include "ScopedFd.h" @@ -32,12 +32,16 @@ namespace art { #if !defined(NDEBUG) -static std::ostream& operator<<(std::ostream& os, backtrace_map_info_t* rhs) { - for (backtrace_map_info_t* m = rhs; m != NULL; m = m->next) { - os << StringPrintf("0x%08x-0x%08x %c%c %s\n", - static_cast<uint32_t>(m->start), - static_cast<uint32_t>(m->end), - m->is_readable ? 'r' : '-', m->is_executable ? 'x' : '-', m->name); +static std::ostream& operator<<( + std::ostream& os, + std::pair<BacktraceMap::const_iterator, BacktraceMap::const_iterator> iters) { + for (BacktraceMap::const_iterator it = iters.first; it != iters.second; ++it) { + os << StringPrintf("0x%08x-0x%08x %c%c%c %s\n", + static_cast<uint32_t>(it->start), + static_cast<uint32_t>(it->end), + (it->flags & PROT_READ) ? 'r' : '-', + (it->flags & PROT_WRITE) ? 'w' : '-', + (it->flags & PROT_EXEC) ? 'x' : '-', it->name.c_str()); } return os; } @@ -47,20 +51,24 @@ static void CheckMapRequest(byte* addr, size_t byte_count) { return; } - uint32_t base = reinterpret_cast<size_t>(addr); - uint32_t limit = base + byte_count; + uintptr_t base = reinterpret_cast<uintptr_t>(addr); + uintptr_t limit = base + byte_count; - backtrace_map_info_t* map_info_list = backtrace_create_map_info_list(getpid()); - for (backtrace_map_info_t* m = map_info_list; m != NULL; m = m->next) { - CHECK(!(base >= m->start && base < m->end) // start of new within old - && !(limit > m->start && limit < m->end) // end of new within old - && !(base <= m->start && limit > m->end)) // start/end of new includes all of old + BacktraceMap map(getpid()); + if (!map.Build()) { + PLOG(WARNING) << "Failed to build process map"; + return; + } + for (BacktraceMap::const_iterator it = map.begin(); it != map.end(); ++it) { + CHECK(!(base >= it->start && base < it->end) // start of new within old + && !(limit > it->start && limit < it->end) // end of new within old + && !(base <= it->start && limit > it->end)) // start/end of new includes all of old << StringPrintf("Requested region 0x%08x-0x%08x overlaps with existing map 0x%08x-0x%08x (%s)\n", base, limit, - static_cast<uint32_t>(m->start), static_cast<uint32_t>(m->end), m->name) - << map_info_list; + static_cast<uint32_t>(it->start), static_cast<uint32_t>(it->end), + it->name.c_str()) + << std::make_pair(it, map.end()); } - backtrace_destroy_map_info_list(map_info_list); } #else |