Make --ftrace work better with cosmocc

This change causes cosmocc to use -fno-inline-functions-called-once by
default, unless -Os or -finline-functions-called-once is defined. This
is important since I believe it generally makes code go faster, and it
most importantly makes --ftrace output much more understandable, since
the trace will be more likely to reflect the actual shape of the code.
We've always used this flag in the mono repo when ftracing is enabled,
but it slipped my mind to incorporate this into the cosmocc toolchain.

Author: jart

tool/cosmocc/bin/cosmocc

@@ -79,6 +79,7 @@ OPT=
 ARGS=
 FLAGS=
 OUTPUT=
+MDFLAG=0
 MCOSMO=0
 INTENT=ld
 NEED_JOIN=
@@ -88,9 +89,8 @@ APELINKFLAGS=
 FLAGS_X86_64=
 FLAGS_AARCH64=
 INPUT_FILE_COUNT=0
-MDFLAG=0
-NEED_DEPENDENCY_OUTPUT=
 DEPENDENCY_OUTPUT=
+NEED_DEPENDENCY_OUTPUT=
 for x; do
   if [ x"$x" != x"${x#* }" ]; then
     fatal_error "arguments containing spaces unsupported: $x"
@@ -267,8 +267,8 @@ LDFLAGS_AARCH64="$LDFLAGS -L$BIN/../aarch64-linux-cosmo/lib -Wl,-T,$BIN/../aarch
 LDLIBS_AARCH64="-lcosmo"
 
 if [ x"$OPT" != x"-Os" ] && [ x"$MODE" != x"tiny" ]; then
-  CFLAGS_X86_64="${CFLAGS_X86_64} -fpatchable-function-entry=18,16"
-  CFLAGS_AARCH64="${CFLAGS_AARCH64} -fpatchable-function-entry=7,6"
+  CFLAGS_X86_64="${CFLAGS_X86_64} -fpatchable-function-entry=18,16 -fno-inline-functions-called-once"
+  CFLAGS_AARCH64="${CFLAGS_AARCH64} -fpatchable-function-entry=7,6 -fno-inline-functions-called-once"
 fi
 
 if [ x"$PROG" != x"${PROG%++}" ]; then

tool/cosmocc/bin/cosmocross

@@ -193,9 +193,9 @@ fi
 if [ x"$OPT" != x"-Os" ] &&                # $OPT != -Os
    [ x"${MODE%tiny}" = x"${MODE}" ]; then  # $MODE not in (tiny, aarch64-tiny)
   if [ x"$ARCH" = x"x86_64" ]; then
-    CFLAGS="$CFLAGS -fpatchable-function-entry=18,16"
+    CFLAGS="$CFLAGS -fpatchable-function-entry=18,16 -fno-inline-functions-called-once"
   elif [ x"$ARCH" = x"aarch64" ]; then
-    CFLAGS="$CFLAGS -fpatchable-function-entry=7,6"
+    CFLAGS="$CFLAGS -fpatchable-function-entry=7,6 -fno-inline-functions-called-once"
   fi
 fi