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2019-08-22Optimize continuation pointer managementBjörn Gustavsson
The BEAM instructions for calling a function don't save the continuation pointer (return address) on the stack, but to a special BEAM register called CP. It is the responsibility of the called function to save CP to the stack frame before calling other functions. In the earlier implementations of BEAM on Sparc, CP was located in a CPU register. That meant that the continuation pointer was never written to memory when calling simple functions that didn't call other functions at all or ended in a tail-call to another function. The modern BEAM no longer keeps CP in CPU register. Instead, it is kept in the `process` struct (in `p->cp`). That means the continuation pointer must be written to the memory on every call, and if the called function will call other functions, it will must read the continuation pointer from `p->cp` and store it on the stack. This commit eliminates the concept of the CP register and modifies the call instructions to directly store the continuation pointer on the stack. That makes allocation and trimming of stack frames slightly faster. A more important benefit is simplification of code that handles continuation pointers. Because all continuation pointers are now stored on the stack, the special case of handling `p->cp` disappears. Co-authored-by: John Högberg <[email protected]>
2019-08-12Merge branch 'maint'John Högberg
* maint: erts: Create heap binaries in binary:split/2-3 erts: Create heap binaries in binary_part/2-3 erts: Create heap binaries in split_binary/2 erts: Create heap binaries in bs_get_binary2 erts: Remove size check in bs_start_match erts: Disallow binaries whose size in bits exceeds UWORD_MAX
2019-08-12Merge branch 'john/erts/bs_get_binary2-heap-binaries/OTP-15977' into maintJohn Högberg
* john/erts/bs_get_binary2-heap-binaries/OTP-15977: erts: Create heap binaries in binary:split/2-3 erts: Create heap binaries in binary_part/2-3 erts: Create heap binaries in split_binary/2 erts: Create heap binaries in bs_get_binary2 erts: Remove size check in bs_start_match erts: Disallow binaries whose size in bits exceeds UWORD_MAX
2019-08-09erts: Create heap binaries in split_binary/2John Högberg
2019-08-08Merge branch 'maint'John Högberg
* maint: erts: Escape atoms in erlang:fun_to_list/1
2019-08-07erts: Escape atoms in erlang:fun_to_list/1John Högberg
2019-08-06erts_debug: Turn off unsafe optimizations in test caseJohn Högberg
The test case alters the return value of a function that the compiler expects will never return, resulting in undefined behavior. Note that the debugger (which may change variables/return values) is unaffected since the affected module is purged and "replaced" with an interpreted variant.
2019-07-30Merge branch 'maint'Micael Karlberg
2019-07-30Merge branch 'bmk/erts/esock/20190729/eafnosupport_on_solaris10' into maintMicael Karlberg
2019-07-30Merge branch 'maint'Micael Karlberg
2019-07-30Merge branch 'bmk/erts/esock/20190717/socket_options/OTP-15904' into maintMicael Karlberg
2019-07-29[esoco|test] Attempt to handle unsupported unix domain socketMicael Karlberg
2019-07-29[esock|test] Race during socket closeMicael Karlberg
Add a sleep to reduce the chance that process exit has not been "processed" by the nif code. Also increased the test case timetrap for the sc_ctrl_proc_exit group of test cases. OTP-15904
2019-07-24[esock|test] Moved include file (to its proper place)Micael Karlberg
OTP-15904
2019-07-24[esock|test] Make some skip reasons more readableMicael Karlberg
OTP-15904
2019-07-23[esock|test] Changing 'dontroute' may not be allowedMicael Karlberg
If we are not allowe to change ('eopnotsupp') the socket option 'dontroute' then we skip the test case. OTP-15904
2019-07-22[esock|test] Split the acceptconn test case into twoMicael Karlberg
The socket acceptconn test case has been split into two, one for UDP and one for TCP. OTP-15904
2019-07-22Merge branch 'maint'Rickard Green
* maint: Fix etp-ets-tables Fix node refc test for free processes hanging around Enhanced node refc bookkeeping Fix node container refc tests of ETS Fix node refc test of external data Node container refc test for persistent terms Include persistent term storage in node/dist refc check Fix node refc test for system message queue
2019-07-22Merge branch 'rickard/node-refc-tests-22' into maintRickard Green
* rickard/node-refc-tests-22: Fix etp-ets-tables Fix node refc test for free processes hanging around Enhanced node refc bookkeeping Fix node container refc tests of ETS Fix node refc test of external data Node container refc test for persistent terms Include persistent term storage in node/dist refc check Fix node refc test for system message queue
2019-07-22Merge branch 'rickard/node-refc-tests-21' into rickard/node-refc-tests-22Rickard Green
* rickard/node-refc-tests-21: Node container refc test for persistent terms Include persistent term storage in node/dist refc check Fix node refc test for system message queue
2019-07-22Node container refc test for persistent termsRickard Green
2019-07-18[esock|test] Add two placeholder test cases: error and lingerMicael Karlberg
Added two place holder test cases for the socket options error and linger. OTP-15904
2019-07-18[esock|test] Update the bindtodevice test caseMicael Karlberg
Handle the eperm error reason that can be returned when attempting to use 'bindtodevice'. OTP-15904
2019-07-18[esock|test] Make the broadcast test case more forgivingMicael Karlberg
OTP-15904
2019-07-18[esock|test] Some platforms does not accept acceptconn for UDPMicael Karlberg
Some platforms (for example darwin and OpenBSD) does not accept this option for UDP. Will result in 'enoprotoopt'. So, skip that part of the test case (UDP) if this error occurs. OTP-15904
2019-07-18Merge branch 'bmk/erts/esock/20190718/socket_option_keepalive/OTP-15904' ↵Micael Karlberg
into bmk/erts/esock/20190717/socket_options/OTP-15904
2019-07-18Merge branch 'bmk/erts/esock/20190718/socket_option_dontroute/OTP-15904' ↵Micael Karlberg
into bmk/erts/esock/20190717/socket_options/OTP-15904
2019-07-18[esock|test] Add test case for socket option 'keepalive'Micael Karlberg
OTP-15904
2019-07-18[esock|test] Add test case for socket option 'dontroute'Micael Karlberg
OTP-15905
2019-07-17[esock|test] Add test case for the domain socket optionMicael Karlberg
OTP-15904
2019-07-17[esock|test] Add an attempt to read out the new debug valueMicael Karlberg
After a successful set of debug, also attempt to read it back to check that it actually took. OTP-15904
2019-07-17[esock|test] Add test case for socket option 'debug'Micael Karlberg
The test case must either be run with a user that has CAP_NET_ADMIN capability or by root. Otherwise the test case will be skipped (eacces). OTP-15904
2019-07-17[esock|test] Fix broadcast test on FreeBSDMicael Karlberg
On FreeBSD (for instance) the address "broadcast" (limited broadcast address = INADDR_BROADCAST) is not available (=> eaddrnotavail), so that part of the test is skipped. OTP-15904
2019-07-17[esock] Handle wildcard address 'broadcast' when bindingMicael Karlberg
Its now possible to bind a socket to the (limited) broadcast address by specifying 'broadcast' as address: socket:bind(Socket, broadcast) This is *only* valid for family 'inet'. Add testing of sending (broadcasting) to both "limited" broadcast address and "subnet-directed" broadcast address. OTP-15904
2019-07-17[esock|test] Post rebase correctionsMicael Karlberg
OTP-15904
2019-07-17[esock] Add test case for socket option bindtodeviceMicael Karlberg
Add test case for the socket option bindtodevice. Also make correction in the nif code. Used the wrong option (broadcast). Also added more info to doc. Note sure if this test case actually works. Set and get "works", but the value returned by get is always "". So either we should extend the test to made sure the bind actually has the expected effect or... Something for a rainy day maybe... OTP-15904
2019-07-17[esock|test] Add placeholder test case for socket option acceptfilterMicael Karlberg
OTP-15904
2019-07-17[esock] Add test case for socket option acceptconnMicael Karlberg
Add test case for the socket option acceptconn. Also make minor correction (error when trying to set this option was incorrect). Doc was also incorrect (spelled wrong). OTP-15904
2019-07-17Merge branch 'maint'Micael Karlberg
2019-07-17Merge branch 'bmk/erts/esock/20190715/tests_tweaking' into maintMicael Karlberg
2019-07-16Merge branch 'maint'Micael Karlberg
2019-07-15[esock|test] Adjusted time trapsMicael Karlberg
2019-07-15[esock|test] Extend gcc and multicast checksMicael Karlberg
Extend the "checks" for faulty gcc (found another platform with the same problem (Old SLES 11). Also tweaked the multicast test a bit.
2019-07-11[esock|test] Update the esock-ttest tool to work with IPv6Micael Karlberg
Needed to do some tweaking to make the tool work with IPv6 sockets. Also found and corrected some unrelated bugs in the tool. OTP-15897
2019-07-10[esock|test] Add missing IPv6 conditionsMicael Karlberg
"Due to" cut-and-paste, a number of IPv6 test cases was missing the condition fun for validating IPv6 support (which caused a couple of IPv6 test cases to fail on platforms not supporting IPv6). OTP-15897
2019-07-10[esock|test] Make the ttest groups of test cases work with IPv6Micael Karlberg
OTP-15897
2019-07-09[esock|test] Add a bunch of api async IPv6 test casesMicael Karlberg
OTP-15897
2019-07-09[esock|test] IPv6 socket address includes optional fieldsMicael Karlberg
OTP-15897
2019-07-09[esock|test] IPv6 socket address includes optional fieldsMicael Karlberg
OTP-15897
2019-07-09Merge branch 'rickard/test-fixes-21' into maint-22Erlang/OTP
* rickard/test-fixes-21: Fix unstable test dump_SUITE:signal_abort Fix unstable node_container_SUITE:magic_ref test Fix unstable node_container_SUITE:node_controller_refc test Fix unstable tests process_SUITE:no_priority_inversion{,2}
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