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2011-08-18Update documentation for erlang:raise/3 and erlang:get_stacktrace/0Björn Gustavsson
2011-08-18erl: Add +L to suppress loading of line number informationBjörn Gustavsson
2011-08-18exception_SUITE: Test line numbers in exceptionsBjörn Gustavsson
2011-08-18Implement process_info(Pid, current_{location,stacktrace})Björn Gustavsson
2011-08-16beam_emu: Factor out saving of stack trace from save_stacktrace()Björn Gustavsson
Put the actual saving of the continuation pointers on the stack in the new function erts_save_stacktrace() so that it can be reused. The code is too tricky and complicated to allow it to become duplicated.
2011-08-16ops.tab: Remove line instructions before tail-recursive callsBjörn Gustavsson
2011-08-16Lookup and include filenames and line numbers in exceptionsBjörn Gustavsson
2011-08-16Fix decrement of continuation pointersBjörn Gustavsson
2011-08-16Refactor building of the exception stacktraceBjörn Gustavsson
As a preparation for providing information about the source location for an MFA item in an exception stacktrace, refactor the code that builds the exception stacktrace. Basically we need two passes over the saved continuation counters: a first pass to calculate the needed heap space and a second pass to actually build the stacktrace.
2011-08-16BEAM loader: Load the line tableBjörn Gustavsson
2011-08-16emulator: Add a fourth element in exception stacktracesBjörn Gustavsson
This commit is a preparation for introducing location information (filename/line number) in stacktraces in exceptions. Currently a stack trace looks like: [{Mod1,Function1,Arity1}, . . . {ModN,FunctionN,ArityN}] Add a forth element to each tuple that can be used indication the filename and line number of the source file: [{Mod1,Function1,Arity1,Location1}, . . . {ModN,FunctionN,ArityN,LocationN}] In this commit, the fourth element will just be an empty list, and we will change all code that look at or manipulate stacktraces.
2011-08-16compiler, emulator: Introduce the line/1 instructionBjörn Gustavsson
Introduce the line/1 instruction in the compiler and the BEAM virtual machine. It will not yet be generated by the compiler and will not actually carry any information.
2011-08-16Fix binary matching in the debuggerBjörn Gustavsson
'eval_bits' is a common utility module used for evaluting binary construction and matching. The functions that do matching (match_bits/{6,7} and bin_gen/6) are supposed to treat the bindings as an abstract data type, but they assume that the bindings have the same representation as in the erl_eval module. That may cause binary matching to fail in the debugger, because the debugger represents the bindings as an unordered list of two-tuples, while the erl_eval modules uses an ordered list of two-tuple (an ordset). One way to fix the problem would be to let the debugger to use ordered lists to represent the bindings. Unfortunately, that would also change how the bindings are presented in the user interface. Currently, the variable have most been recently assigned is shown first, which is convenient. Fix the matching problem by mending the leaky abstraction in eval_bits. The matching functions needs to be passed two additional operations: one for looking up a variable in the bindings and one for adding a binding. Those operations could be passed as two more funs (in addition to the evaluation and match fun already passed), but the functions already have too many arguments. Therefore, change the meaning of the match fun, so that the first argument is the operation to perform ('match', 'binding', or 'add_binding') and second argument is a tuple with arguments for the operation.
2011-08-08Merge branch 'dev' into majorHenrik Nord
2011-08-08Merge branch 'ms/inet-socket-domain-error' into devHenrik Nord
* ms/inet-socket-domain-error: inet: error if fd does not match socket domain OTP-9455
2011-08-08Merge branch 'dev' into majorHenrik Nord
2011-08-08Merge branch 'cg/fix-constant-logical-operand' into devHenrik Nord
* cg/fix-constant-logical-operand: Fix use of logical operator && with constant operand instead of bitwise &. OTP-9454
2011-08-08Merge branch 'dev' into majorHenrik Nord
2011-08-08Merge branch 'pg/fix-freebsd-dualcore-detection' into devHenrik Nord
* pg/fix-freebsd-dualcore-detection: Fix bug in FreeBSD topology detection code OTP-9453
2011-08-08Merge branch 'dev' into majorHenrik Nord
2011-08-08Merge branch 'pg/fix-hibernate-scheduling-with-hipe' into devHenrik Nord
* pg/fix-hibernate-scheduling-with-hipe: Fix bug related to hibernate and HiPE (clear F_HIBERNATE_SCHED flag) OTP-9452
2011-08-08Merge branch 'bjorn/parallel-make/OTP-9451' into majorBjörn Gustavsson
* bjorn/parallel-make/OTP-9451: (28 commits) erl_interface: Support parallel make dialyzer: Remove special-case build in the top Makefile pcre: Rename Makefile.in to pcre.mk and include it cos*/src/Makefile: Support parallel make ic: Support parallel make orber: Support parallel make .gitignore: Ignore IDL-GENERATED public_key: Support parallel make ssh: Support parallel make os_mon: Support parallel make diameter: Support parallel make snmp: Support parallel make megaco: Support parallel make megaco/src/flex/Makefile.in: Support parallel make */c_src/Makefile*: Support parallel make eunit: Support parallel make gs: Support parallel make common_test Makefile: Support parallel make erts/emulator/Makefile.in: Support parallel make erts: Fix dependency generation ...
2011-08-08pcre: Rename Makefile.in to pcre.mk and include itBjörn Gustavsson
To avoid issues with parallel make and to slightly speed up the build process, avoid a recursive make by replacing pcre/Makefile.in with pcre/pcre.mk and including it from the main emulator Makefile.
2011-08-08erts/emulator/Makefile.in: Support parallel makeBjörn Gustavsson
2011-08-08erts/Makefile.in: Suppress parallel makeBjörn Gustavsson
2011-08-08erts/emulator/Makefile.in: Remove clearmake supportBjörn Gustavsson
2011-08-05Merge branch 'dev' into majorBjörn Gustavsson
* dev: Fix binary construction with huge literal sizes beam_load.c: Add overflow check of tag values beam_makeops: Add some sanity checks Fix construction of <<0:((1 bsl 32)-1)>>
2011-08-03Fix binary construction with huge literal sizesBjörn Gustavsson
Constructing binaries using the bit syntax with literals sizes that would not fit in an Uint will either cause an emulator crash or the loading to be aborted. Use the new TAG_o tag introduced in the previous commit to make sure that the attempt to create huge binary literals will generate a system_limit exception at run-time.
2011-08-03beam_load.c: Add overflow check of tag valuesBjörn Gustavsson
The handling of large values for other tags than TAG_i (integer) is buggy. Any tag value equal to or greater than 2^40 (5 bytes) will abort loading. Tag values fitting in 5 bytes will be truncated to 4 bytes values. Those bugs cause real problems because the bs_init2/6 and bs_init_bits/6 instructions unfortunately use TAG_u to encode literal sizes (using TAG_i would have been a better choice, but it is too late to change that now). Any binary size that cannot fit in an Uint should cause a system_limit exception at run-time, but instead the buggy handling will either cause an emulator crash (for values in the range 2^32 to 2^40-1) or abort loading. In this commit, implement overflow checking of tag values as a preparation for fixing the binary construction instructions. If any tag value cannot fit in an Uint (except for TAG_i), change the tag to the special TAG_o overflow tag.
2011-08-03beam_makeops: Add some sanity checksBjörn Gustavsson
We want to make sure that a tag/type name is not defined more than once and that we don't define too many primitive tags. Primitive tags must be named with lowercase letters (or they will be confused with variable names in transformations in the ops.tab file).
2011-08-03Fix construction of <<0:((1 bsl 32)-1)>>Björn Gustavsson
Attempting to construct <<0:((1 bsl 32)-1)>>, the largest bitstring allowed in a 32 bit emulator, would cause an emulator crash because of integer overflow. Fix the problem by using an Uint64 to avoid integer overflow. Do not attempt to handle construction of <<0:((1 bsl 64)-1>> in a 64-bit emulator, because that will certainly cause the emulator to terminate anyway because of insufficient memory.
2011-07-29Merge branch 'dev' into majorSverker Eriksson
2011-07-29Merge branch 'sverker/allocator-aoff/OTP-9424' into devSverker Eriksson
* sverker/allocator-aoff/OTP-9424: New allocator: Address order first fit (aoff)
2011-07-28Merge branch 'dev' into majorSverker Eriksson
2011-07-27Merge branch 'sverker/fun_SUITE-refc_dist-gcfix' into devSverker Eriksson
* sverker/fun_SUITE-refc_dist-gcfix: Fix test case fun_SUITE:refc_dist
2011-07-27Merge branch 'dev' into majorSverker Eriksson
2011-07-27Merge branch 'sverker/epmd-vxworks-select-bug/OTP-9427' into devSverker Eriksson
* sverker/epmd-vxworks-select-bug/OTP-9427: Fix epmd crash on vxworks caused by faulty argument to select
2011-07-27Fix epmd crash on vxworks caused by faulty argument to selectSverker Eriksson
The first argument g->max_conn to select() in epmd_srv.c seems to be wrong as it excludes the listening socket(s). Instead we keep track of the highest fd seen. However I still don't understand why select() started to fail for vxworks with R14B03 when the feature of more than one listening socket was introduced. The default is still 1 listening socket (num_sockets=1), which would make the first argument to select() unchanged.
2011-07-26Merge branch 'dev' into majorSverker Eriksson
2011-07-26Merge branch 'sverker/testcase/OTP-9422' into devSverker Eriksson
* sverker/testcase/OTP-9422: Test case for OTP-9422
2011-07-26Merge branch 'dev' into majorSverker Eriksson
2011-07-26Fix test case fun_SUITE:refc_distSverker Eriksson
It failed sometimes depending on GC invocation.
2011-07-22Test case for OTP-9422Sverker Eriksson
2011-07-20Small fixups for rickard/sbmbc/OTP-9339Sverker Eriksson
alloc_no of sbmbc_low_alloc was set to ERTS_ALC_A_STANDARD_LOW
2011-07-18New allocator: Address order first fit (aoff)Sverker Eriksson
2011-07-13Correct merge conflict mistake in parentSverker Eriksson
2011-07-13Merge branch 'dev' into majorSverker Eriksson
Conflicts: erts/emulator/test/nif_SUITE.erl erts/emulator/test/nif_SUITE_data/nif_SUITE.c sverker/enif_make_int64-halfword/OTP-9394
2011-07-13Merge branch 'sverker/enif_make_int64-halfword/OTP-9394' into devSverker Eriksson
* sverker/enif_make_int64-halfword/OTP-9394: Fix halfword bug in enif_make_int64
2011-07-12Merge branch 'dev' into majorSverker Eriksson
2011-07-12Merge branch 'maint-r14' into devSverker Eriksson
Conflicts: erts/vsn.mk