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added a switch -d:nimEmulateOverflowChecks for broken or old GCC versions (#13692)

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Andreas Rumpf 2020-03-19 09:56:30 +01:00 • committed by GitHub
commit ba6e7c6365
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4 changed files with 13 additions and 5 deletions
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8
compiler/cgen.nim
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@ -1234,13 +1234,15 @@ proc genVarPrototype(m: BModule, n: PNode) =
"\t$1 = ($2*)hcrGetGlobal($3, \"$1\");$n", [sym.loc.r,
getTypeDesc(m, sym.loc.t), getModuleDllPath(m, sym)])
proc addIntTypes(result: var Rope; conf: ConfigRef) {.inline.} =
proc addNimDefines(result: var Rope; conf: ConfigRef) {.inline.} =
result.addf("#define NIM_INTBITS $1\L", [
platform.CPU[conf.target.targetCPU].intSize.rope])
if conf.cppCustomNamespace.len > 0:
result.add("#define USE_NIM_NAMESPACE ")
result.add(conf.cppCustomNamespace)
result.add("\L")
if conf.isDefined("nimEmulateOverflowChecks"):
result.add("#define NIM_EmulateOverflowChecks\L")
proc getCopyright(conf: ConfigRef; cfile: Cfile): Rope =
if optCompileOnly in conf.globalOptions:
@ -1263,7 +1265,7 @@ proc getCopyright(conf: ConfigRef; cfile: Cfile): Rope =
proc getFileHeader(conf: ConfigRef; cfile: Cfile): Rope =
result = getCopyright(conf, cfile)
if conf.hcrOn: result.add("#define NIM_HOT_CODE_RELOADING\L")
addIntTypes(result, conf)
addNimDefines(result, conf)
proc getSomeNameForModule(m: PSym): Rope =
assert m.kind == skModule
@ -1825,7 +1827,7 @@ proc writeHeader(m: BModule) =
var guard = "__$1__" % [m.filename.splitFile.name.rope]
result.addf("#ifndef $1$n#define $1$n", [guard])
addIntTypes(result, m.config)
addNimDefines(result, m.config)
generateHeaders(m)
generateThreadLocalStorage(m)