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authorRoberto Ierusalimschy <roberto@inf.puc-rio.br>2018-12-27 14:32:29 -0200
committerRoberto Ierusalimschy <roberto@inf.puc-rio.br>2018-12-27 14:32:29 -0200
commitba7da13ec5938f978c37d63aa40a3e340b301f79 (patch)
treec1f22403954f6e0c6d17c8495c11509103313c9a /luaconf.h
parentda37ac9c7894186a0e2e0e6f1f5f00b825fd1555 (diff)
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Changes in the control of C-stack overflow
* unification of the 'nny' and 'nCcalls' counters; * external C functions ('lua_CFunction') count more "slots" in the C stack (to allow for their possible use of buffers) * added a new test script specific for C-stack overflows. (Most of those tests were already present, but concentrating them in a single script easies the task of checking whether 'LUAI_MAXCCALLS' is adequate in a system.)
Diffstat (limited to 'luaconf.h')
-rw-r--r--luaconf.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/luaconf.h b/luaconf.h
index ff708513..0fc161a4 100644
--- a/luaconf.h
+++ b/luaconf.h
@@ -695,14 +695,14 @@
695/* 695/*
696@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. 696@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
697** CHANGE it if it uses too much C-stack space. (For long double, 697** CHANGE it if it uses too much C-stack space. (For long double,
698** 'string.format("%.99f", -1e4932)' needs 5034 bytes, so a 698** 'string.format("%.99f", -1e4932)' needs 5052 bytes, so a
699** smaller buffer would force a memory allocation for each call to 699** smaller buffer would force a memory allocation for each call to
700** 'string.format'.) 700** 'string.format'.)
701*/ 701*/
702#if LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE 702#if LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE
703#define LUAL_BUFFERSIZE 8192 703#define LUAL_BUFFERSIZE 8192
704#else 704#else
705#define LUAL_BUFFERSIZE ((int)(0x80 * sizeof(void*) * sizeof(lua_Integer))) 705#define LUAL_BUFFERSIZE ((int)(16 * sizeof(void*) * sizeof(lua_Number)))
706#endif 706#endif
707 707
708/* 708/*