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Measure stack usage in baremetal script

Browse source 
So far, `baremetal.sh --ram --stack` ran `callgrind` to extract
a call stack in an example run of ssl_client2 and ssl_server2.
This, however, needs to be complemented with per-function stack
usage to be able to extract the maximum stack usage.

This commit adds `-fstack-usage` to the CFLAGS used when building
the library in `baremetal.sh --ram` runs, which generates *.su
files indicating the stack usage of individual functions.
This commit is contained in:
Hanno Becker 2019-04-03 11:55:57 +01:00
parent 7a097859c5
commit c7c20817dc
1 changed files with 9 additions and 3 deletions
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12
scripts/baremetal.sh
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@ -155,7 +155,7 @@ baremetal_build_armc6()
# 32-bit host-build of library, tests and example programs,
# + heap usage measurements.
baremetal_ram_build() {
: ${BASE_CFLAGS:="-g -m32"}
: ${BASE_CFLAGS:="-g -m32 -fstack-usage"}
echo "Create 32-bit host-build (Config: $BAREMETAL_CONFIG + $BAREMETAL_USER_CONFIG)"
echo "Cleanup..."
@ -241,13 +241,14 @@ baremetal_ram_stack() {
: ${VALGRIND:=valgrind}
: ${VALGRIND_CALLGRIND_PARAMS:="--separate-callers=100"}
RAM_CALLGRIND_OUT="ram_callgrind__${date}__$NAME"
RAM_STACK_OUT="ram_stack__${date}__$NAME"
SRV_CMD="$SRV server_addr=127.0.0.1 server_port=4433 debug_level=4 $SRV_PARAMS"
CLI_CMD="$CLI server_addr=127.0.0.1 server_port=4433 $CLI_PARAMS"
VALGRIND_BASE="$VALGRIND --tool=callgrind $VALGRIND_CALLGRIND_PARAMS"
VALGRIND_CMD="$VALGRIND_BASE --callgrind-out-file=${RAM_STACK_OUT} $CLI_CMD"
VALGRIND_CMD="$VALGRIND_BASE --callgrind-out-file=${RAM_CALLGRIND_OUT} $CLI_CMD"
$SRV_CMD > /dev/null 2>&1 &
SRV_PID=$!
@ -262,7 +263,12 @@ baremetal_ram_stack() {
kill $SRV_PID
echo "Done"
echo "SUCCESS - Stack usage statistics written to: $RAM_STACK_OUT\n"
# Merge stack usage files
cat library/*.su > ${RAM_STACK_OUT}_unsorted
sort -r -k2 -n ${RAM_STACK_OUT}_unsorted > $RAM_STACK_OUT
rm ${RAM_STACK_OUT}_unsorted
echo "SUCCESS - Statistics written to $RAM_STACK_OUT and $RAM_CALLGRIND_OUT\n"
}
show_usage() {