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Changes imported from Abseil "staging" branch:

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- fbff677ef850865ea67ed6771a8ed348be181e8e Modify sysinfo.cc to support GetTID on Akaros. by Abseil Team <absl-team@google.com>
  - f1c2929e08a3d4181e08cb5014c4a569306fd922 Two functions that did not refer to their arguments unles... by Abseil Team <absl-team@google.com>
  - ee43cc3bfdb4d84d40eee31fb25ecdc1aa060f47 Support Akaros (https://akaros.org) in the ABSL spinlock_... by Abseil Team <absl-team@google.com>
  - 6869c8c5253126459d6c7f0aa708d8612c8e5963 Make sure vdso_base_ is constant-intialized. by Abseil Team <absl-team@google.com>
  - d54e0366efc8d44cd5da5fd157734da966dc45e8 Add missing include for assert used by ABSL_ASSERT. by Derek Mauro <dmauro@google.com>
  - a5139775f3917bb5201e7fc838135766daa05b8d When building against GLIBC-2.16 or newer, use getauxval(... by Abseil Team <absl-team@google.com>

GitOrigin-RevId: fbff677ef850865ea67ed6771a8ed348be181e8e
Change-Id: Ie3549f6ef054783dd104304d2faf8d9800c16b83
This commit is contained in:
Abseil Team 2017-10-24 10:37:49 -07:00 • committed by Jon Cohen
parent 5fcbe86e7b
commit dedb4eec6c
9 changed files with 120 additions and 34 deletions
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7
absl/debugging/internal/elf_mem_image.h
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@ -43,9 +43,14 @@ namespace debug_internal {
// An in-memory ELF image (may not exist on disk).
class ElfMemImage {
private:
// Sentinel: there could never be an elf image at &kInvalidBaseSentinel.
static const int kInvalidBaseSentinel;
public:
// Sentinel: there could never be an elf image at this address.
static const void *const kInvalidBase;
static constexpr const void *const kInvalidBase =
static_cast<const void*>(&kInvalidBaseSentinel);
// Information about a single vdso symbol.
// All pointers are into .dynsym, .dynstr, or .text of the VDSO.