Diffusion LLVM Github Monorepo 92e267a94dc4

[Sanitizers] Get link map on FreeBSD via documented API
92e267a94dc4
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Authored by dim on Feb 6 2020, 2:18 PM.

Description

[Sanitizers] Get link map on FreeBSD via documented API

Summary:
Instead of hand-crafting an offset into the structure returned by
dlopen(3) to get at the link map, use the documented API. This is
described in dlinfo(3): by calling it with RTLD_DI_LINKMAP, the
dynamic linker ensures the right address is returned.

Reviewers: devnexen, emaste, MaskRay, krytarowski

Reviewed By: krytarowski

Subscribers: krytarowski, vitalybuka, #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D73990

Details

Committed

dim	Feb 10 2020, 10:21 AM

Reviewer

krytarowski

Differential Revision

D73990: [Sanitizers] Get link map on FreeBSD via documented API

Parents

rGeaeb5610ced2: debugserver: Rely on mig architectures being specified externally

Branches

Unknown

Tags

Unknown

Reverted By

rG480eea4e45bc: Revert "[Sanitizers] Get link map on FreeBSD via documented API"

Event Timeline

dim committed rG92e267a94dc4: [Sanitizers] Get link map on FreeBSD via documented API (authored by dim).Feb 10 2020, 10:21 AM

This is breaking on Android: (error: use of undeclared identifier 'dlinfo')

dim added a reverting change: rG480eea4e45bc: Revert "[Sanitizers] Get link map on FreeBSD via documented API".Feb 10 2020, 2:33 PM

dim mentioned this in rG52f2df1ecdd7: [Sanitizers] Get link map on FreeBSD and NetBSD via documented API.Feb 10 2020, 2:43 PM

Changes (11)

				Path	Packages
	M			compiler-rt/lib/sanitizer_common/sanitizer_fuchsia.cpp
	M			compiler-rt/lib/sanitizer_common/sanitizer_libc.h
	M			compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp
	M			compiler-rt/lib/sanitizer_common/sanitizer_mac.cpp
	M			compiler-rt/lib/sanitizer_common/sanitizer_netbsd.cpp
	M			compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.cpp
	M			compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.h
	M			compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_netbsd.cpp
	M			compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_netbsd.h
	M			compiler-rt/lib/sanitizer_common/sanitizer_rtems.cpp
	M			compiler-rt/lib/sanitizer_common/sanitizer_win.cpp