blob: 9f6f1ffbe18dc51a33f05d52e02af04936753dfd (
plain) (
tree)
|
|
#!/bin/bash
if (($# != 1)); then
>&2 echo "Usage: $0 <identifier>";
exit 1;
fi;
function grepc_find_files()
{
files="$(mktemp -t 'grepc.XXXXXX')";
find . -type f \
| grep -P '\.[ch]' \
| xargs grep -lPI "$1\b" \
>"$files";
}
function grepc_helper()
{
xargs grep -lPI "$1" <"$files" \
| xargs grep -lP "$2" \
| sort \
| xargs pcregrep -Mn "$3" /dev/null \
| sed -E 's/^[^: ]+:[0-9]+:/\n\n&\n/';
}
function grepc_macro_simple()
{
grepc_helper \
"#\s*define\s+$1\b[^(]" \
'.' \
"(?s)#\s*define\s+$1\b(?!\().*?[^\\\\]$";
}
function grepc_macro_func()
{
grepc_helper \
"#\s*define\s+$1\(" \
'.' \
"(?s)#\s*define\s+$1\(.*?[^\\\\]$";
}
function grepc_macro()
{
grepc_macro_simple "$1";
grepc_macro_func "$1";
}
function grepc_enum_constant()
{
grepc_helper \
'^enum\s' \
"^\s*$1\s*[,=]" \
"(?s)\benum\b\s*([\w\s[\]]|::)*\s*{[^}]*^\s*$1\s*[=,].*?^}.*?;";
}
function grepc_func_decl()
{
grepc_helper \
"\b$1\s*\(" \
'.' \
"(?s)^[\w[]([\w\s\(,\)[\]*]|::)+[\w\s\)*\]]\s+\**$1\s*\([\w\s\(,\)[\]*]+?(...)?\)[\w\s\(,\)[:\]]*;";
}
function grepc_func_def()
{
grepc_helper \
"\b$1\s*\(" \
'.' \
"(?s)^[\w[]([\w\s\(,\)[\]*]|::)*[\w\s\)*\]]\s+\**$1\s*\([\w\s\(,\)[\]*]+?(...)?\)\s*{.*?^}";
}
function grepc_func()
{
grepc_func_decl "$1";
grepc_func_def "$1";
}
function grepc_linux_syscall_decl()
{
grepc_helper \
"^asmlinkage\s+[\w\s]+\**sys_$1\s*\(" \
'.' \
"(?s)^asmlinkage\s+[\w\s]+\**sys_$1\s*\(.*?\)";
}
function grepc_linux_syscall_def()
{
grepc_helper \
"SYSCALL_DEFINE.\($1\b" \
'.' \
"(?s)^(COMPAT_)?SYSCALL_DEFINE.\($1\b.*?^}";
}
function grepc_linux()
{
grepc_linux_syscall_decl "$1";
grepc_linux_syscall_def "$1";
}
function grepc_glibc_math()
{
grepc_func_def "M_DECL_FUNC \(__$1\)";
}
function grepc_glibc()
{
grepc_glibc_math "$1";
}
function grepc_type_struct_union_enum()
{
grepc_helper \
"\b(struct|union|enum)\s+$1\b" \
'.' \
"(?s)^(?!^\s*typedef\b)([\w[]([\w\s\(,\)[\]*]|::)*[\w\s\)*\]]\s+)?\b(struct|union|enum)\s+$1\b\s*[\w\s[\]]*{.*?^}.*?;";
}
function grepc_type_typedef_simple()
{
grepc_helper \
'^\s*typedef\s' \
"\b$1;" \
"(?s)^\s*typedef\s+[^{};]+$1;";
}
function grepc_type_typedef_struct_union_enum()
{
grepc_helper \
'^\s*typedef\s+(struct|union|enum)\b[^;]*$' \
"^( )?}\s*$1;" \
"(?s)^\s*typedef\s+(struct|union|enum)\s+(?:(?!^( )?}|^\s*typedef).)*^( )?}\s*$1;";
}
function grepc_type_typedef_underlying_struct_union_enum()
{
xargs grep -hP "^\s*typedef\s+(struct|union|enum)\s+.*\b$1;" <"$files" \
| sed -E -e 's/^\s*typedef\s+//' -e "s/\s*\**\b$1;.*//" \
| sed -E -e 's/^struct\s+//' -e 's/^union\s+//' -e 's/^enum\s+//' \
| while read t; do
test "$1" != "$t" \
&& grepc_type_struct_union_enum "$t";
done;
}
function grepc_type_typedef()
{
grepc_type_typedef_simple "$1";
grepc_type_typedef_struct_union_enum "$1";
grepc_type_typedef_underlying_struct_union_enum "$1";
}
function grepc_type()
{
grepc_type_struct_union_enum "$1";
grepc_type_typedef "$1";
}
function main()
{
grepc_find_files "$1";
grepc_macro "$1";
grepc_enum_constant "$1";
grepc_func "$1";
grepc_linux "$1";
grepc_glibc "$1";
grepc_type "$1";
}
main "$1";
|