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Summary:
Get utf8 encoded arguments before we call hs_init and use them
instead of ignoring hs_init arguments. This reduces differing
behaviour of the RTS between windows and linux and simplifies
the code involved.
A few testcases were changed to expect the same result on windows
as on linux after the changes.
This fixes #13940.
Test Plan: ./validate
Reviewers: austin, hvr, bgamari, erikd, simonmar, Phyx
Subscribers: Phyx, rwbarton, thomie
GHC Trac Issues: #13940
Differential Revision: https://phabricator.haskell.org/D3739
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This both says what we mean and silences a bunch of spurious CPP linting
warnings. This pragma is supported by all CPP implementations which we
support.
Reviewers: austin, erikd, simonmar, hvr
Reviewed By: simonmar
Subscribers: rwbarton, thomie
Differential Revision: https://phabricator.haskell.org/D3482
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Noticed by uselex.rb:
setProgName: [R]: exported from:
./rts/dist/build/RtsFlags.o
Signed-off-by: Sergei Trofimovich <siarheit@google.com>
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Summary:
Hooks rely on static linking semantics, and are broken by -Bsymbolic
which we need when using dynamic linking.
Test Plan: Built it
Reviewers: austin, hvr, tibbe
Differential Revision: https://phabricator.haskell.org/D8
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This reverts commit 39b5c1cbd8950755de400933cecca7b8deb4ffcd.
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This will hopefully help ensure some basic consistency in the forward by
overriding buffer variables. In particular, it sets the wrap length, the
offset to 4, and turns off tabs.
Signed-off-by: Austin Seipp <austin@well-typed.com>
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Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
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Rather than have main() be statically compiled as part of the RTS, we
now generate it into the tiny C file that we compile when linking a
binary.
The main motivation is that we want to pass the settings for the
-rtsotps and -with-rtsopts flags into the RTS, rather than relying on
fragile linking semantics to override the defaults, which don't work
with DLLs on Windows (#5373). In order to do this, we need to extend
the API for initialising the RTS, so now we have:
void hs_init_ghc (int *argc, char **argv[], // program arguments
RtsConfig rts_config); // RTS configuration
hs_init_ghc() can optionally be used instead of hs_init(), and allows
passing in configuration options for the RTS. RtsConfig is a struct,
which currently has two fields:
typedef struct {
RtsOptsEnabledEnum rts_opts_enabled;
const char *rts_opts;
} RtsConfig;
but might have more in the future. There is a default value for the
struct, defaultRtsConfig, the idea being that you start with this and
override individual fields as necessary.
In fact, main() was in a separate static library, libHSrtsmain.a.
That's now gone.
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setupRtsFlags(), rather than sharing the memory. Previously if the
caller of hs_init() passed in dynamically-allocated memory and then
freed it, random crashes could happen later (#5177).
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This code has accumulated a great deal of cruft over the years, this
pass cleans up a lot of the surrounding cruft but leaves the actual
argument processing alone - so there's still more that could be done.
Bug fixed:
- ghc_rts_opts should not be subject to the --rtsopts setting. If
the programmer explicitly declares options with ghc_rts_opts, they
shouldn't also have to accept command-line RTS options to make them
work.
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