Fix syscall generator scripts

[lttng-modules.git] / tools / syscalls / lttng-get-syscall-inout.sh

diff --git a/tools/syscalls/lttng-get-syscall-inout.sh b/tools/syscalls/lttng-get-syscall-inout.sh
index 413eebfa010a63d5fa7481fd98f117826f0e3381..1cf963944655e3a9b99f77551dd5a22f9712c22d 100755 (executable)
--- a/tools/syscalls/lttng-get-syscall-inout.sh
+++ b/tools/syscalls/lttng-get-syscall-inout.sh
@@ -6,7 +6,8 @@
 
 ARCH_NAME=$1
 SYSCALL_NAME=$2
-ARG_NR=$3
+NB_ARGS=$3
+ARG_NR=$4
 TMPFILE=$(mktemp)
 GENERIC_INOUT_DESCRIPTION_FILE="$(dirname "$0")/table-syscall-inout.txt"
 
@@ -37,7 +38,8 @@ function write_inout_description ()
 {
        local arch_name=$1
        local syscall_name=$2
-       local output_file=$3
+       local nb_args=$3
+       local output_file=$4
        local description_files=("$(dirname "$0")/table-syscall-inout-${arch_name}-override.txt" "$GENERIC_INOUT_DESCRIPTION_FILE")
        local match_count
 
@@ -56,6 +58,10 @@ function write_inout_description ()
                        echo "Error: more than one system call match for ${SYSCALL_NAME}" >&2
                        exit 1
                elif [ "${match_count}" -eq 1 ]; then
+                       if ! grep -q "^syscall ${syscall_name} nbargs ${nb_args}" "${output_file}"; then
+                               echo "Error: number of arguments doesn't match for ${SYSCALL_NAME}" >&2
+                               exit 1
+                       fi
                        # Description found
                        return 0
                fi
@@ -69,7 +75,7 @@ set -eu
 
 
 # Default to sc_inout for unknown syscalls
-if ! write_inout_description "$ARCH_NAME" "$SYSCALL_NAME" "$TMPFILE"; then
+if ! write_inout_description "$ARCH_NAME" "$SYSCALL_NAME" "$NB_ARGS" "$TMPFILE"; then
        echo "Warning: no match for syscall '${SYSCALL_NAME}', set to 'inout'" >&2
        # no match, default to inout
        echo "sc_inout"