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| author | Sverker Eriksson <[email protected]> | 2017-08-30 21:00:35 +0200 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2017-08-30 21:00:35 +0200 |
| commit | 44a83c8860bbd00878c720a7b9d940b4630bab8a (patch) | |
| tree | 101b3c52ec505a94f56c8f70e078ecb8a2e8c6cd /erts/emulator/hipe/hipe_amd64_asm.m4 | |
| parent | 7c67bbddb53c364086f66260701bc54a61c9659c (diff) | |
| parent | 040bdce67f88d833bfb59adae130a4ffb4c180f0 (diff) | |
| download | otp-44a83c8860bbd00878c720a7b9d940b4630bab8a.tar.gz otp-44a83c8860bbd00878c720a7b9d940b4630bab8a.tar.bz2 otp-44a83c8860bbd00878c720a7b9d940b4630bab8a.zip | |
Merge tag 'OTP-20.0' into sverker/20/binary_to_atom-utf8-crash/ERL-474/OTP-14590
Diffstat (limited to 'erts/emulator/hipe/hipe_amd64_asm.m4')
| -rw-r--r-- | erts/emulator/hipe/hipe_amd64_asm.m4 | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/erts/emulator/hipe/hipe_amd64_asm.m4 b/erts/emulator/hipe/hipe_amd64_asm.m4 index 2c0fbbee2d..409fd0ef89 100644 --- a/erts/emulator/hipe/hipe_amd64_asm.m4 +++ b/erts/emulator/hipe/hipe_amd64_asm.m4 @@ -121,6 +121,22 @@ define(NSP,%rsp)dnl /* + * Debugging macros + * + * Keeps track of whether context has been saved in the debug build, allowing us + * to detect when the garbage collector is called when it shouldn't. + */ +`#ifdef DEBUG +# define SET_GC_UNSAFE \ + movq $1, P_GCUNSAFE(P) +# define SET_GC_SAFE \ + movq $0, P_GCUNSAFE(P) +#else +# define SET_GC_UNSAFE +# define SET_GC_SAFE +#endif' + +/* * Context switching macros. */ `#define SWITCH_C_TO_ERLANG_QUICK \ @@ -133,12 +149,14 @@ define(NSP,%rsp)dnl `#define SAVE_CACHED_STATE \ SAVE_HP; \ - SAVE_FCALLS' + SAVE_FCALLS; \ + SET_GC_SAFE' `#define RESTORE_CACHED_STATE \ RESTORE_HP; \ RESTORE_HEAP_LIMIT; \ - RESTORE_FCALLS' + RESTORE_FCALLS; \ + SET_GC_UNSAFE' `#define SWITCH_C_TO_ERLANG \ RESTORE_CACHED_STATE; \ |