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authorBjörn Gustavsson <[email protected]>2018-05-09 10:49:16 +0200
committerBjörn Gustavsson <[email protected]>2018-05-09 12:48:43 +0200
commit13bcae1294760339f232f1e06083d168a4e8e3eb (patch)
tree63ffab1d99af0ddff9a7fa2840d5c98ae4d3ab4a /erts/emulator
parent837fe8bf4bf3a567c66afec0f0ec3dd70d248cd8 (diff)
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Disable the use of floating point exceptions
Floating point exceptions has been disabled since 2011 on macOS (fa0f8d2c29b) and on Linux since 2014 (c7ddafbe6dbc) because there were unresolved stability issues. Floating point exceptions are not disabled by default on FreeBSD, and if OTP is compiled with gcc (as opposed to clang) floating point exceptions will be used. 81a6adab693a introduced a bug in erts/emulator/Makefile.in which would cause the building of OTP to fail if floating point exceptions were enabled. The bug was not noticed because it turns out that none of our daily build machines has floating point exceptions enabled. Since floating point exceptions is not tested, we should not expect them to work reliably on any platform. Therefore, turn off floating point exceptions unconditionally in erts/configure.in. For the moment we will keep the code in the runtime system that handles floating point exceptions. (This commit also fixes the bug in erts/emulator/Makefile.in, in case floating point exceptions ever become reliable and enabled.) https://bugs.erlang.org/browse/ERL-620
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/Makefile.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in
index 5dfa60ee74..221cf84622 100644
--- a/erts/emulator/Makefile.in
+++ b/erts/emulator/Makefile.in
@@ -570,7 +570,7 @@ $(TTF_DIR)/OPCODES-GENERATED: $(OPCODE_TABLES) utils/beam_makeops
-code-model @CODE_MODEL@ \
-outdir $(TTF_DIR) \
-DUSE_VM_PROBES=$(if $(USE_VM_PROBES),1,0) \
- -DNO_FPE_SIGNALS=$(if $filter(unreliable,$(FPE)),1,0) \
+ -DNO_FPE_SIGNALS=$(if $(filter unreliable,$(FPE)),1,0) \
-emulator $(OPCODE_TABLES) && echo $? >$(TTF_DIR)/OPCODES-GENERATED
GENERATE += $(TTF_DIR)/OPCODES-GENERATED