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| author | Joey Jiaojg <joeyjiaojg@gmail.com> | 2021-05-26 19:38:04 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-05-26 13:38:04 +0200 |
| commit | 3da9017c17c7d2432c4b76345c4d2efbeedd2935 (patch) | |
| tree | 47e9b10fc542a1f5a1c785027ec6d2fce1a7dfef /docs/syscall_descriptions_syntax.md | |
| parent | 1f4e6ed95868861aae449b3630e6cfe5a2b96c93 (diff) | |
pkg/compiler: add glob type
* all: add new typename dirname
The current way to check files under sysfs or proc is:
- define a string to represent each file
- open the file
- pass the fd to write / read / close
The issues above are:
- Need to know what file present on target device
- Need to write openat for each file
With dirname added, which will open one file
in the directory randomly and then pass the fd to
write/read/close.
* all: use typename glob to match filename
Fixes #481
Diffstat (limited to 'docs/syscall_descriptions_syntax.md')
| -rw-r--r-- | docs/syscall_descriptions_syntax.md | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/syscall_descriptions_syntax.md b/docs/syscall_descriptions_syntax.md index 76cdc90b1..4517963eb 100644 --- a/docs/syscall_descriptions_syntax.md +++ b/docs/syscall_descriptions_syntax.md @@ -9,7 +9,7 @@ arg = argname type argname = identifier type = typename [ "[" type-options "]" ] typename = "const" | "intN" | "intptr" | "flags" | "array" | "ptr" | - "string" | "strconst" | "filename" | "len" | + "string" | "strconst" | "filename" | "glob" | "len" | "bytesize" | "bytesizeN" | "bitsize" | "vma" | "proc" type-options = [type-opt ["," type-opt]] ``` @@ -42,6 +42,8 @@ rest of the type-options are type-specific: "stringnoz": a non-zero-terminated memory buffer (no pointer indirection implied), type-options: either a string value in quotes for constant strings (e.g. "foo" or `deadbeef` for hex literal), or a reference to string flags, +"glob": glob pattern to match on target files, type-options: + a zero-terminated glob pattern string in quotes (e.g. "/sys/" or `/sys/**/*` for glob match), "fmt": a string representation of an integer (not zero-terminated), type-options: format (one of "dec", "hex", "oct") and the value (a resource, int, flags, const or proc) the resulting data is always fixed-size (formatted as "%020llu", "0x%016llx" or "%023llo", respectively) |