Move setjmp/longjmp helper functions and globals to compiler_rt_wasm … #7203
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…library Previously these have been generated by LLVM during codegen but this doesn't work once we have separate compilation. See LLVM change: https://reviews.llvm.org/D49208
jgravelle-google
approved these changes
Sep 28, 2018
system/lib/compiler-rt/extras.c
Outdated
| } | ||
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| void getTempRet0(int value) { | ||
| __tempRet0 = value; |
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Maybe
int getTempRet0() {
return __tempRet0;
}| @@ -467,6 +467,8 @@ def create_wasm_compiler_rt(libname): | |||
| 'ashldi3.c', 'fixdfdi.c', 'floatdidf.c', 'lshrdi3.c', 'moddi3.c', | |||
| 'trunctfdf2.c', 'trunctfsf2.c', 'umoddi3.c', 'fixunsdfdi.c', 'muldi3.c', | |||
| 'divdi3.c', 'divmoddi4.c', 'udivdi3.c', 'udivmoddi4.c']) | |||
| files += files_in_path(path_components=['system', 'lib', 'compiler-rt'], | |||
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Maybe move+rename extras.c to system/lib/compiler-rt/lib/wasm_extras.c
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Yeah.. I thought about giving it a different name. Perhaps moving it up one level to its not in the compiler-rt source directory at all.
The thing is we have libc/extra.c so I thought it would be good to be consistent with that.
[skip ci]
earl
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Oct 2, 2018
…criptenEHSjLj Previously we were creating weakly defined helper function in each translation unit: - setThrew - setTempRet0 Instead we now assume these will be provided at link time. In emscripten they are provided in compiler-rt: emscripten-core/emscripten#7203 Additionally we previously created three global variable which are also now required to exist at link time instead. - __THREW__ - _threwValue - __tempRet0 Differential Revision: https://reviews.llvm.org/D49208 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@343640 91177308-0d34-0410-b5e6-96231b3b80d8
aheejin
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Oct 10, 2018
PR emscripten-core#7203 added some functions used for emscripten EH and they are now exported. They can be DCE'd if they are not used but not at -O1.
aheejin
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Oct 11, 2018
PR #7203 added some functions used for emscripten EH and they are now exported. They can be DCE'd if they are not used but not at -O1.
llvm-git-migration
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Nov 6, 2018
…criptenEHSjLj Previously we were creating weakly defined helper function in each translation unit: - setThrew - setTempRet0 Instead we now assume these will be provided at link time. In emscripten they are provided in compiler-rt: emscripten-core/emscripten#7203 Additionally we previously created three global variable which are also now required to exist at link time instead. - __THREW__ - _threwValue - __tempRet0 Differential Revision: https://reviews.llvm.org/D49208 llvm-svn=343640
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…library
Previously these have been generated by LLVM during codegen
but this doesn't work once we have separate compilation.
See LLVM change: https://reviews.llvm.org/D49208