Handle mscorwks_unixexports.src with better regexp operator for compatibility

ver3:
According to the gawk manual, The '\S' operator (as shorthand for '[^[:space:]]')
matches any character that is not whitespace. However, '[ \t]' is better than
'\S' for Mac OSX.
(source - https://www.gnu.org/software/gawk/manual/html_node/GNU-Regexp-Operators.html )

ver2:
With ver1, the build-break is caused by different awk versions (by @jkotas).
(Revert PR - https://github.com/dotnet/coreclr/pull/4005)
To resolve the limitation of the ver1, @janvorli proposed that the
\S expression is better than [:space:] for the most compatible solution.

There are a lot of different AWK software (e.g. awk, gawk, mawk, nawk, etc)
and versions among the popular Linux distributions. This patch is a simply
way to handle 'mscorwks_unixexports.src' file with \S operator for more
compatibility amon the different awk versions.

ver1:
It's must be modified by gawk implementation that check it exactly
as a plain character (e.g., space, alnum) within the bracket expression
at ./coreclr/generateversionscript.awk. The [[:space:]] is more appropriate than
the [:space:]]. (PR - https://github.com/dotnet/coreclr/pull/3943)

Signed-off-by: Geunsik Lim <geunsik.lim@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Prajwal A N <an.prajwal@samsung.com>
Commit migrated from https://github.com/dotnet/coreclr/commit/6d7701c198590f8d727f038e1ba40b1e57c95ef6

Merge pull request dotnet/coreclr#4021 from dotnet-bot/from-tfs

Merge changes from TFS

Commit migrated from https://github.com/dotnet/coreclr/commit/d3502c29c511292d0c6046b1aafe87295d2372d9

Merge pull request dotnet/coreclr#4008 from leemgs/upstream-typo-build-mode

Improve description of build type spelling for consistency

Commit migrated from https://github.com/dotnet/coreclr/commit/0cce34c8976fd887bee0cf877c36b9abfa555635

Merge pull request dotnet/coreclr#4020 from JohnChen0/master

Fix CrossGen documentation error

Commit migrated from https://github.com/dotnet/coreclr/commit/255c421c4a21e2f603c49d8233bfb77c7bb1cbdc

Merge pull request dotnet/coreclr#3944 from leemgs/upstream-cross-arm-stripping-symbols

[Linux/ARM32] objcopy: Support cross-build  for stripping symbols.

Commit migrated from https://github.com/dotnet/coreclr/commit/2d67d180baf9b8a5cbcb10dd49dd02e38bd684d8

Merge pull request dotnet/coreclr#3989 from bbowyersmyth/StringEquals

Port String.Equals from CoreRT

Commit migrated from https://github.com/dotnet/coreclr/commit/7b8fc40b13a1000a8b8617ec8be7ec0456a37573

Merge pull request dotnet/coreclr#3981 from manu-silicon/context

Fix RtlRestoreContext

Commit migrated from https://github.com/dotnet/coreclr/commit/3be49cd4b6f25ad315ad0c48e53dd46c4e9f39ba

Fix CrossGen documentation error

Commit migrated from https://github.com/dotnet/coreclr/commit/79d8f0478049271c370c2b2feb99df4b466717d8

Fix RtlRestoreContext

Due to macro expansion, the previous computed offsets to restore Lr and Pc
were incorrect, causing a memory corruption (see Issue dotnet/coreclr#3856 for C# code
reproducing that problem).
Made assembly more obvious when just restoring Sp, Lr and Pc.

Commit migrated from https://github.com/dotnet/coreclr/commit/8b37a203524b88c9b003e9779822fb8fdf77e119

Merge pull request dotnet/coreclr#4016 from dotnet/revert-3960-check_runtime_to_pull_coredistools

Revert "Add architeture information to a script downloading coredistools"

Commit migrated from https://github.com/dotnet/coreclr/commit/99329c67db66a4def852a681c240569553026e19

Fix R2R fixups for delegate ctors

- Add getReadyToRunDelegateHelper to JIT-EE interface. This method has an extra argument describing the type of the delegate. This argument is required to emit correct fixups.
- Call the new method in both JIT and JIT32
- Add the new method to superpmi
- Bump minor version of R2R file format
- Add regression test for dotnet/coreclr#3975 to R2R unit test

Fixes https://github.com/dotnet/coreclr/issues/3975

[tfs-changeset: 1591698]

Commit migrated from https://github.com/dotnet/coreclr/commit/c4378e7f0773577e9924ff4ebad0cc3af43fb3a8

Merge pull request dotnet/coreclr#4017 from mikem8361/issue3987

Fixed issue dotnet/coreclr#3987 "Debugger fails to stop on entry due to stack walk failure"

Commit migrated from https://github.com/dotnet/coreclr/commit/184a61dd82d7da989d630dcdbcecdb1b9c3e316e

Fixed issue dotnet/coreclr#3987 "Debugger fails to stop on entry due to stack walk failure"

By initializing m_rgHijackFunction to NULL.

Commit migrated from https://github.com/dotnet/coreclr/commit/3cd2f88c398cfba986202a9766047b8fc231602d

Merge pull request dotnet/coreclr#3982 from mikem8361/readmemoryav2

Fix ReadMemory AV.

Commit migrated from https://github.com/dotnet/coreclr/commit/1bc24d14dce4876197492211f4989b656f08aedb

Revert "Add architeture information to a script downloading coredistools"

Commit migrated from https://github.com/dotnet/coreclr/commit/72c2da31f0f4136daa5be81ef24e1b7289b781fb

Merge pull request dotnet/coreclr#4002 from kyulee1/fixcmd

ARM64: Running cmd instead of exe

Commit migrated from https://github.com/dotnet/coreclr/commit/7b5202380fd78006592564d954f445c63495fb97

Getting SOS to work on ARm64:

     This mainly involved DACizing the VM code.
      A bulk edit for changing RUNTIME_FUNCTION to T_RUNTIME_FUNCTION

[tfs-changeset: 1591667]

Commit migrated from https://github.com/dotnet/coreclr/commit/6a2e3b34c3c9ac32456d38567b9f44ab6aea2f63

ARM64: Running cmd instead of exe

Our test framework (smarty) directly runs test executable on corerun.exe.
But some of tests expect arguments via environment variable specified in .cmd.
The fix is to change the test list file to run .cmd. So the expected pass
value is also updated to 0 instead of 100. Now we don't need to pass /host
that specifies corerun.exe.
3 additional tests are now passed:
 InterlockedAddLongWithSubtract/CompareExchangeTString/Polyrec

Commit migrated from https://github.com/dotnet/coreclr/commit/cc5518a491dd31a308b205bc52de31e834b47e72

Change spelling of build type for consistenty

This is trivial patch.
Let's display a help manual with lower case for better consistency
when the developers run "./build.sh --help".

Signed-off-by: Geunsik Lim <geunsik.lim@samsung.com>
Commit migrated from https://github.com/dotnet/coreclr/commit/91aef995434cbe1646b2661cc4111ecfc1e6b487

Merge pull request dotnet/coreclr#4003 from briansull/update-tests-lst

Update with 10 additional passing tests, and two moved to unstable

Commit migrated from https://github.com/dotnet/coreclr/commit/531de762ff569f52049e35cb69032b9c3da22238

Merge pull request dotnet/coreclr#4005 from dotnet/revert-3943-upstream-gawk-char-class

Revert "Fix bracket expression matches a character at gawk"

Commit migrated from https://github.com/dotnet/coreclr/commit/ef38b9d88463c427896457f7f03b3c2976c9b307

Revert "Fix bracket expression matches a character at gawk"

Commit migrated from https://github.com/dotnet/coreclr/commit/e65dcb5321a86f0d4e1cee92e2f36f8c84013904

Update with 10 additional pasing tests, and two moved to unstable

Commit migrated from https://github.com/dotnet/coreclr/commit/575eecb4ae0415f2be2196a0435c79ff6365eff9

Merge pull request dotnet/coreclr#3955 from davmason/master

Fixing tracelogging on linux

Commit migrated from https://github.com/dotnet/coreclr/commit/d47a3984e4f3277337c710579407d3a5e1d94714

Merge pull request dotnet/coreclr#3996 from kyulee1/fixconv

ARM64: Fix conversion double to unsigned int

Commit migrated from https://github.com/dotnet/coreclr/commit/831ce3c7db6b532420dcb778918a7554a6fc2965

ARM64: Fix conversion double to unsigned int

For ARM/ARM64, converting negative double to unsigned int is 0, which aligns with all native compilers.
I also removed the part of tests that depends on architecture specific values.
Since ARM64 tests were prepopulated, I just updated the tag so that we can update the tests later.

Commit migrated from https://github.com/dotnet/coreclr/commit/bbfdcebb6bed3ed646bb5e17028166bcc9404653

Merge pull request dotnet/coreclr#3960 from sejongoh/check_runtime_to_pull_coredistools

Add architeture information to a script downloading coredistools

Commit migrated from https://github.com/dotnet/coreclr/commit/debff19365d06a66fc3cd50342ded48518a25f01

Merge pull request dotnet/coreclr#3983 from svick/getresourcestring-culture

Remove unused CultureInfo from GetResourceString

Commit migrated from https://github.com/dotnet/coreclr/commit/918bb2e8bfb46d44291507d4b0d017f8aba5b0d8

Fixing contracts violations, and adding missing contracts to some APIs.
Changing native format reader failure mode to fail fast instead of throwing and exception.

[tfs-changeset: 1591477]

Commit migrated from https://github.com/dotnet/coreclr/commit/a62cb372fb7edf1cf7d7b783bfa653f58dc68a7a

Merge pull request dotnet/coreclr#3994 from dagood/upgrade-cli

Apply dotnet cli upgrade also to tests\dir.props

Commit migrated from https://github.com/dotnet/coreclr/commit/72f6c4e1d552474f80b1814288eeb79e09e5760f

Apply dotnet cli upgrade also to tests\dir.props.

Commit migrated from https://github.com/dotnet/coreclr/commit/f9fc3284d2c864aff5b685548470813359a07d02

Merge pull request dotnet/coreclr#3993 from dagood/upgrade-cli

Upgrade dotnet cli version

Commit migrated from https://github.com/dotnet/coreclr/commit/a4bb869f1091f2514f5cd705a5e3548d0d28b62a

Upgrade dotnet cli version.

Commit migrated from https://github.com/dotnet/coreclr/commit/e2aa428f40d85b84f7de4a13124dcd96ec600a1c

Merge pull request dotnet/coreclr#3943 from leemgs/upstream-gawk-char-class

Fix bracket expression matches a character at gawk

Commit migrated from https://github.com/dotnet/coreclr/commit/817fec1799d13c089b14ed168f8c691b00e4d5e9

Merge pull request dotnet/coreclr#3984 from svick/patch-1

Removed obsolete comment from Environment.GetResourceString

Commit migrated from https://github.com/dotnet/coreclr/commit/a88f97abc317021ac742a6409791b26fc98068c7

Port String.Equals from CoreRT

Commit migrated from https://github.com/dotnet/coreclr/commit/c08d9b60badc7532d5ff408045976224157f35a9

Merge pull request dotnet/coreclr#3985 from myungjoo/trivialfix/macro1

Trivial fix: dangerous macro usage

Commit migrated from https://github.com/dotnet/coreclr/commit/5f5a98309136ec5693a87f5d5cb77c8f98012f90

Trivial fix: dangerous macro usage

Add parenthesis to make the macro safe.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Commit migrated from https://github.com/dotnet/coreclr/commit/a7405648da7544d0bd1a6728986ced8b0f189638

Removed obsolete comment from Environment.GetResourceString

Fixes dotnet/coreclr#3979

Commit migrated from https://github.com/dotnet/coreclr/commit/0e3c5de2f004916e6cb640fe83e2781a6029500d

remove unused CultureInfo from GetResourceString

Commit migrated from https://github.com/dotnet/coreclr/commit/6408f73fed3864806f921f0175928efb1dfccab8

Fix ReadMemory AV.

Use simple probing to validate read/write memory with a try/catch and explicit h/w exception holder.

Put probing in separate noinline and optnone function for optimized builds.

Fix assert in exception code mapping in context.cpp by handling SIGSEGV subcode SI_KERNEL.

Commit migrated from https://github.com/dotnet/coreclr/commit/4a268f7141f7f2528a8f1c5437837046bd21664c

Merge pull request dotnet/coreclr#3974 from briansull/update-tests-lst

Disabled 8 failing tests

Commit migrated from https://github.com/dotnet/coreclr/commit/f0638c5b6aecec87b3a8aac8c808152c86febe9d

Disabled 8 failing tests

Issues filed: 3968, 3969, 3970, 3971 and 3973

Commit migrated from https://github.com/dotnet/coreclr/commit/176b2d6f5004b39a5ffe04ce99619c365122ef2b

Merge pull request dotnet/coreclr#3966 from kyulee1/fixframe2

ARM64: Fix Frame with compLocallocUsed

Commit migrated from https://github.com/dotnet/coreclr/commit/e9426290b6525747a0cde96b7a4ebe89ec391dd0

ARM64: Fix Frame with compLocallocUsed

When compLocallocUsed is true, stack pointer is changed during the run.
So, JIT should restore stack pointer from frame pointer in the epilog.
Previously, we simpliy copied fp to sp, which is only valid for frameType
= 1.
This implements a right restoring process for other frameTypes (2 and 3).
For frameType = 3, I also simplified creating prolog sequence to support
this feature consistently.

Commit migrated from https://github.com/dotnet/coreclr/commit/68c70fa6f7207ee4acfd7f6cf511e91d46bdcf53

Merge pull request dotnet/coreclr#3963 from adityamandaleeka/statFileParse

Fix stat file parsing to handle executable names with spaces

Commit migrated from https://github.com/dotnet/coreclr/commit/ef8af95b971a79fa0714fbeb39653a7581b4373f

Merge pull request dotnet/coreclr#3959 from briansull/safe-refactor

Safe Refactor - Remove conditional definition and references to lvIsMultiRegArgOrRet

Commit migrated from https://github.com/dotnet/coreclr/commit/2a55928860a74bad0dc1947631e5657d64ebbf35

Merge pull request dotnet/coreclr#2182 from justinvp/keyedcollection_enumallocs

Avoid enumerator allocations inside KeyedCollection<TKey, TItem>

Commit migrated from https://github.com/dotnet/coreclr/commit/04569c541137efcdb84848555cbf038074a955d5

Merge pull request dotnet/coreclr#2178 from justinvp/keyedcollection_nullchecks

Remove unnecessary null checks from KeyedCollection<TKey,TItem>

Commit migrated from https://github.com/dotnet/coreclr/commit/587cbb77129c31e93c5b5ccbe03bb6c41dc5821c

Fix stat file parsing to handle executable names with spaces.

Commit migrated from https://github.com/dotnet/coreclr/commit/b66da08912d8b43c39f743e5a65515d3e74ec432

Add architeture information to a script downloading coredistools

Commit migrated from https://github.com/dotnet/coreclr/commit/b7f5398362e05e2ce6921af781ea4af7f3f75837

Safe Refactor - Remove conditional definition and references to lvIsMultiRegArgOrRet

Commit migrated from https://github.com/dotnet/coreclr/commit/344dba53965e61a971eea5cfcb3e8d4e5c688149

Merge pull request dotnet/coreclr#3954 from leemgs/toolchain-name-unifyin-arm64

[Linux/ARM32/64] Unifying the redundant usages of cross-toolchain

Commit migrated from https://github.com/dotnet/coreclr/commit/e25eb2cc4e9fd8ea56364aad99c3be9f16f671d8

objcopy: Support cross-build for stripping symbols

Currently, the 'objcopy' does only support native-build since
the commit number dotnet/coreclr@4efef62f0ead16b4f8ca2c6ccf0a77ce112f73b9
Let's add cross-build as well as native-build to strip symbols.

v3:
- support if statement for arm64

v2:
- Replace 'EQUAL' with 'DEFINED' for handling Other Linux distributions
  as well as Ubuntu 14.04 and for handling in case of native-build.

v2:
- support cross-build to strip debug symbols of native arm binaries

Signed-off-by: Geunsik Lim geunsik.lim@samsung.com
Signed-off-by: MyungJoo Ham myungjoo.ham@samsung.com
Signed-off-by: Prajwal A N an.prajwal@samsung.com
Commit migrated from https://github.com/dotnet/coreclr/commit/2df33a8de217f54330397a9101c51f2a9956ad18

[Linux/ARM32/64] Unifying the redundant usages of cross-toolchain

The name of toolchain name has been increasing gradually.
Let's unify the toolchain name of Linux/ARM{32|64} to prevent the
increase of the fragmentation, and to the manatainability.

Signed-off-by: Geunsik Lim geunsik.lim@samsung.com
Signed-off-by: MyungJoo Ham myungjoo.ham@samsung.com
Signed-off-by: Prajwal A N an.prajwal@samsung.com
Commit migrated from https://github.com/dotnet/coreclr/commit/4eb537dcf4d9780f70b3a68b6f0d1d61cd9a836b

Merge pull request dotnet/coreclr#3946 from leemgs/toolchain-name-unifying

[Linux/ARM32] Unifying the redundant usages of cross-toolchain

Commit migrated from https://github.com/dotnet/coreclr/commit/48ce56b9fcd1b5edf5ca28f83d7b623b71e5c925

Merge pull request dotnet/coreclr#3902 from JosephTremoulet/ZeroExtend

Unsuppress same-reg zero-extending mov (x64)

Commit migrated from https://github.com/dotnet/coreclr/commit/8d34c2f299cfbd26783e2deb7e982bf611885d0a

[Linux/ARM32] Unifying the redundant usages of cross-toolchain

The name of toolchain name has been increasing gradually.
Let's unify the toolchain name of Linux/ARM32 to prevent the
increase of the fragmentation, and to the manatainability.

Signed-off-by: Geunsik Lim geunsik.lim@samsung.com
Signed-off-by: MyungJoo Ham myungjoo.ham@samsung.com
Signed-off-by: Prajwal A N an.prajwal@samsung.com
Commit migrated from https://github.com/dotnet/coreclr/commit/12924be33d6d84a2e78e98291dfdd03cb621fc21

Fix: bracket expression matches a character at gawk

This is a trivial patch. However, It's must be modified by gawk.
Check it exactly as a plain character (e.g., space, alnum)
within the bracket expression at ./coreclr/generateversionscript.awk

Signed-off-by: Geunsik Lim <geunsik.lim@samsung.com>
Commit migrated from https://github.com/dotnet/coreclr/commit/1ecdf767806842e9d09db879d4fdd98cef7b9810

Merge pull request dotnet/coreclr#3896 from adityamandaleeka/configvalues4

Add new configuration mechanism for CoreCLR.

Commit migrated from https://github.com/dotnet/coreclr/commit/775003a4c72f0acc37eab84628fcef541533ba4e

Merge pull request dotnet/coreclr#3931 from Godin/fix-typos

Fix copy-paste typos

Commit migrated from https://github.com/dotnet/coreclr/commit/4f1aef23dac7f26b048e8910dab42d948c9b9c9c

Merge pull request dotnet/coreclr#3920 from CarolEidt/ChangeLdObjToObj

1stClassStructs: Replace GT_LDOBJ with GT_OBJ

Commit migrated from https://github.com/dotnet/coreclr/commit/9d8513352e858ad3b739626e062f0133698a7111

Merge pull request dotnet/coreclr#3928 from manu-silicon/patch-3

Fix invalid path to genXplatLttng.py

Commit migrated from https://github.com/dotnet/coreclr/commit/24cab6db08b1c7f0c297abefa7fa27bd88082505

Add new configuration mechanism for CoreCLR.

Commit migrated from https://github.com/dotnet/coreclr/commit/1aa1b8ba64365f8b93a505d4f6165c6eaad84a7a

Merge pull request dotnet/coreclr#3934 from briansull/remove-lvaAdjustRefCnts

Remove empty phase lvaAdjustRefCnts

Commit migrated from https://github.com/dotnet/coreclr/commit/1378dbbb0baffc737018503adb0310859a46eb0c

1stClassStructs: Replace GT_LDOBJ with GT_OBJ

In preparation for using block nodes in assignments, change GT_LDOBJ to GT_OBJ.
Also, eliminate gtFldTreeList, which was only
being used in a transitory fashion for x87
codegen - instead create the nodes on the fly as needed for stack fp codegen.
Additional minor cleanup.

Commit migrated from https://github.com/dotnet/coreclr/commit/3789f42252a2faf577f90841fb944256c637b4f2

Merge pull request dotnet/coreclr#3933 from AndyAyersMS/RefactorPolicy

Inliner: refactor policies to extract common legality portion

Commit migrated from https://github.com/dotnet/coreclr/commit/117825e88bb1c21f626938a8b101fcd175015319

Merge pull request dotnet/coreclr#3924 from AndyAyersMS/Fix-VSO-205323

Inliner: fix issue introduced by refactoring

Commit migrated from https://github.com/dotnet/coreclr/commit/4042556fe08e0eaac0ea8379b7f8e12dec60e5eb

Remove empty phase lvaAdjustRefCnts

Commit migrated from https://github.com/dotnet/coreclr/commit/46460db255be36aeb52cb1df9156b7b0b06e380c

Merge pull request dotnet/coreclr#3932 from kyulee1/arm64tool

Fix ARM64 lib toolchain

Commit migrated from https://github.com/dotnet/coreclr/commit/12870d860aebfeff0bd92d3919c88b3ed7519359

Unsuppress same-reg zero-extending mov (x64)

Update CodeGen::genIntToIntCast to stop suppressing 32-bit same-register
`mov`s, and to stop assuming that 32-bit enregistered sources already have
the top half of their register clear.  This latter assumption is usually
true, but is not guaranteed across function boundaries by the ABI.  As it
happens, the runtime code that invokes custom attribute constructors can
pass garbage in the top half of such parameters; this change adds a
testcase that fails on that path without this fix.

Commit migrated from https://github.com/dotnet/coreclr/commit/e1c9e27795e49f05af417efe10c01c0774e28f32

Inliner: refactor policies to extract common legality portion

Now that we have multiple policies, refactor their implementation
to extract common elements. In particular all the existing
policies have the same legality and ability constraints, so this
logic is extracted to a partial `LegalPolicy` superclass.

Adresses relevant feedback on dotnet/coreclr#3697, where the number of policies
increased from one to two.

No changes in behavior.

Commit migrated from https://github.com/dotnet/coreclr/commit/da7c4410075f7211d077cb4e8c8ef368659dbb0c

Fixing tracelogging on linux

Commit migrated from https://github.com/dotnet/coreclr/commit/c23c38d36c0fabb9ee861643dade9b4f56ff1e61

Fix ARM64 lib toolchain

This fixes path for the right libs that are consistent with tools.
With this, crossgen.exe can run natively on arm64.

fix

Commit migrated from https://github.com/dotnet/coreclr/commit/8690b1f42331f2e859f5314c2f6a6dca8dfbcd19

Fix copy-paste typos

Commit migrated from https://github.com/dotnet/coreclr/commit/eaa2cf6470a57e6ba35c4d9c94b488ae6afad94d

Merge pull request dotnet/coreclr#3907 from davmason/master

Fix spurious warning about parameter counts

Commit migrated from https://github.com/dotnet/coreclr/commit/764c9b52cfb7f631cc30ed23e7072c6eb04e195f

Merge pull request dotnet/coreclr#3930 from dotnet-bot/from-tfs

Merge changes from TFS

Commit migrated from https://github.com/dotnet/coreclr/commit/aedfba00f7977b2c00022df74d1bbe03e73260c8

Merge pull request dotnet/coreclr#3908 from AndyAyersMS/JitTimeData

Inliner: collect jit time data

Commit migrated from https://github.com/dotnet/coreclr/commit/e316b5571a34181e08d7f912fab96795ad2ee035

Fix build break on full framework

[tfs-changeset: 1589984]

Commit migrated from https://github.com/dotnet/coreclr/commit/7b97c58fef96875e672ddc271ded8c11dc416c76

Fix invalid path to genXplatLttng.py

Commit migrated from https://github.com/dotnet/coreclr/commit/bec80abd245604aedbf9b89d7e4393e49a8056cf

Merge pull request dotnet/coreclr#3900 from jkotas/legacynetcf

Delete legacy netcf compat support (final part)

Commit migrated from https://github.com/dotnet/coreclr/commit/d6357b20ea0542f674fc323be172cd44d122318d

Merge pull request dotnet/coreclr#3921 from myungjoo/fix/3859

Fix dotnet/coreclr#3859 ARM/Unwind: explicitly mark the end of stack

Commit migrated from https://github.com/dotnet/coreclr/commit/db22f6be2ec9dcce076a5cb0bab5c33a031c88c9

Merge pull request dotnet/coreclr#3923 from myungjoo/doc/arm_0001

Update Linux Build Instruction

Commit migrated from https://github.com/dotnet/coreclr/commit/58209afd48c6f0d2b7e9bc987b701f20480afb89

Merge pull request dotnet/coreclr#3917 from jkotas/structinregs

Add explicit calling convention modifiers for x86

Commit migrated from https://github.com/dotnet/coreclr/commit/6c0639cff22b0dbb48f3f2b5046dee23f22d29b4

Update Linux Build Instruction

For Linux/ARM, you need to update libunwind-arm
in order to avoid segmentation faults in libunwind-arm,
which is not included in major Linux distros, yet,
while it is already being addressed in upstreams.

This is realted with dotnet/coreclr#3898 Issue Comment 201098037:
https://github.com/dotnet/coreclr/issues/3898#issuecomment-201098037

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Commit migrated from https://github.com/dotnet/coreclr/commit/25d01ddcec5e4e4296aef8b5f576a1db7914aa5a

Merge pull request dotnet/coreclr#3919 from stephentoub/specialcase_emptystring

Special-case hashcode of empty length string on Unix

Commit migrated from https://github.com/dotnet/coreclr/commit/c20480dfc56a18dec823bb15015e90e9a8da55c0

Inliner: fix issue introduced by refactoring

Refactoring done in dotnet/coreclr#3799 inadvertently modified logic in
`fgFindJumpTargets` so that stored-to arguments might not be marked as
such in the `lvaTable' when crossgenning a root method. This lead to
asserts in internal test cases.

This change restores the logic to its prior state, and adds a test
case that will trigger an assert if the assembly is crossgenned and
this fix is not applied.

Commit migrated from https://github.com/dotnet/coreclr/commit/13ff9aef107018c26c8d255b20ced32a84be25cf

Inliner: collect jit time data

This is an initial cut at collecting the time spent jitting a method
as part of observing the incremental impact of inlines.

It currently only measures the time after inlining has run, because there
are substantial interactions with the EE before this point and the time
spent in those calls is not always going to properly attribute to the
current method. We've had some good internal discussion on other
approaches to this and will likely revisit as time goes on. There was
already some timing support in place for SQM so I've generalized that
and shared it for this case too.

This also fixes an off-by-one issue with the method version which came
up when trying to back-correlate the inline data into the inline trees.
The data dumps now include root method data, and so we capture the IL
size and force inline state of the root method in the data dumps. This
allows us to investiage if observed inliner data is corrlated with the
current size of a method.

Data output is now also supported in RET builds. A custom build that
defines `INLINE_DATA` is required. Output is sent to stderr to work
around issues with crossgen.exe reopening stdout in a non-ascii mode.

Commit migrated from https://github.com/dotnet/coreclr/commit/56c4dd36829af89be9cef1d537e2d1998e2beb26

Fix ARM/Unwind: explicitly mark the end of stack

Libunwind-arm unw_step returns 0 with unchanged PC
if it hits the bottom of the stack.

Thus, seh-unwind.cpp::PAL_VirtualUnwind should
explicitly mark that it has reached the bottom
as it does with ARM64, FreeBSD, or APPLE for
ARM/Linux.

Fix dotnet/coreclr#3859

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Commit migrated from https://github.com/dotnet/coreclr/commit/95cad43adb26410a31adaa8f30908f07876bb742

Special-case hashcode of empty length string on Unix

This is special-cased in the Windows build, but not currently in the Unix build.

Commit migrated from https://github.com/dotnet/coreclr/commit/fb223894cc95c4269829dde874cc9ec7f65d3bce

Merge pull request dotnet/coreclr#3885 from sejongoh/test_env_script

Add --test-env option to tests/runtest.sh to set stress mode environm…

Commit migrated from https://github.com/dotnet/coreclr/commit/edb66eb76eaa046913c0de0d5c7f917f2cfc8465

Add explicit calling convention modifiers for x86

Commit migrated from https://github.com/dotnet/coreclr/commit/905046b8928716e050ab2c9b3f57518e604d4791

Merge pull request dotnet/coreclr#3904 from kyulee1/NoMT

Remove static lib dependency on CrossGen

Commit migrated from https://github.com/dotnet/coreclr/commit/e02c359a66219e4021ecb614cff87bb6a07bd68e

Merge pull request dotnet/coreclr#3905 from kyulee1/arm64cross

Enable CrossGen Compilation for ARM64

Commit migrated from https://github.com/dotnet/coreclr/commit/5950613eff6684b20af4b49ee7a75e3951c3666e

Merge pull request dotnet/coreclr#3814 from tijoytom/master

Marshal tests for various scenarios.

Commit migrated from https://github.com/dotnet/coreclr/commit/64d8836e6ec00fe4cefb2b7e8a8059e53c7c45e2

Add --test-env option to tests/runtest.sh to set stress mode environment varibles just before tests run.

Commit migrated from https://github.com/dotnet/coreclr/commit/de0c3c3d5162581b8bda84169d53c42ec31ddf82

Fix spurious warning about parameter counts

Commit migrated from https://github.com/dotnet/coreclr/commit/b45dbec2efcdc9713ddf50d57d8df3564874b345

Enable CrossGen Compilation for ARM64

This simply removes the blocking code that prevents ARM64 crossgen
compilation. Otherwise, we got InvalidProgramExceptions for all methods.
I've validated this allows crossgen to compiles all mscorlib methods.
Toward the end, there is NYI assertion in Zap which is expected.

Commit migrated from https://github.com/dotnet/coreclr/commit/1a0a1c3542cc296035b8ef14e7520dfdb2ac5d93

Remove static lib dependency on CrossGen

The motivation is for enabling ARM64 which does not have correct static
lib with the current toolset.
But looking at other console apps (ilasm/ildasm/coreconsole/corerun) or
coreclr.dll, they also have dependency on msvcrt for Windows.
So, I've decided to make crossgen.exe with the same flavor.
This changes reduces the binary size -- 10M -> 9M (Debug). Release binary
is slightly smaller.
I've validated this by comparing .ni.dll for all FX assemblies that we use for
tests (under CORE_ROOT), which are identical before and after.

Commit migrated from https://github.com/dotnet/coreclr/commit/9bc133dfd67980e9496c93bb08de9a03c33e12e3

Merge pull request dotnet/coreclr#3891 from JohnChen0/r2r

Fix generic struct delegate in ReadyToRun (dotnet/coreclr#3690)

Commit migrated from https://github.com/dotnet/coreclr/commit/6633c0fce8182129544fca6301c09e3a7f646e54