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Make --ftrace work better with cosmocc

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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.
This commit is contained in:
Justine Tunney 2024-02-21 13:20:21 -08:00
parent 77ddf4cb07
commit fc3c536ec2
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
2 changed files with 6 additions and 6 deletions
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8
tool/cosmocc/bin/cosmocc
View file

@ -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

4
tool/cosmocc/bin/cosmocross
View file

@ -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