[libc-commits] [libc] ae60782 - Revert "[libc] Implement basename and dirname in libgen.h (#204554)" (#204856)
via libc-commits
libc-commits at lists.llvm.org
Fri Jun 19 09:39:41 PDT 2026
Author: Jeff Bailey
Date: 2026-06-19T17:39:37+01:00
New Revision: ae60782c82682d20764f888321efb5d53df18a4a
URL: https://github.com/llvm/llvm-project/commit/ae60782c82682d20764f888321efb5d53df18a4a
DIFF: https://github.com/llvm/llvm-project/commit/ae60782c82682d20764f888321efb5d53df18a4a.diff
LOG: Revert "[libc] Implement basename and dirname in libgen.h (#204554)" (#204856)
Reverted due to death tests failing with ASan on buildbots. Reverts
commit 29692c150f86d76cfb58e8bf2c0e97dc6afd2088.
Added:
Modified:
libc/config/linux/aarch64/entrypoints.txt
libc/config/linux/arm/entrypoints.txt
libc/config/linux/riscv/entrypoints.txt
libc/config/linux/x86_64/entrypoints.txt
libc/docs/CMakeLists.txt
libc/docs/headers/index.rst
libc/include/CMakeLists.txt
libc/src/CMakeLists.txt
libc/src/__support/CPP/string_view.h
libc/test/src/CMakeLists.txt
Removed:
libc/include/libgen.yaml
libc/src/libgen/CMakeLists.txt
libc/src/libgen/basename.cpp
libc/src/libgen/basename.h
libc/src/libgen/dirname.cpp
libc/src/libgen/dirname.h
libc/test/src/libgen/CMakeLists.txt
libc/test/src/libgen/basename_death_test.cpp
libc/test/src/libgen/basename_test.cpp
libc/test/src/libgen/dirname_death_test.cpp
libc/test/src/libgen/dirname_test.cpp
libc/utils/docgen/libgen.yaml
################################################################################
diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index 3072c3d22aa5f..5cddf3dc89799 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -109,10 +109,6 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.inttypes.strtoimax
libc.src.inttypes.strtoumax
- # libgen.h entrypoints
- libc.src.libgen.basename
- libc.src.libgen.dirname
-
# stdbit.h entrypoints
libc.src.stdbit.stdc_bit_ceil_uc
libc.src.stdbit.stdc_bit_ceil_ui
diff --git a/libc/config/linux/arm/entrypoints.txt b/libc/config/linux/arm/entrypoints.txt
index 805738a3a5756..c4ac53c4925a3 100644
--- a/libc/config/linux/arm/entrypoints.txt
+++ b/libc/config/linux/arm/entrypoints.txt
@@ -73,10 +73,6 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.inttypes.strtoimax
libc.src.inttypes.strtoumax
- # libgen.h entrypoints
- libc.src.libgen.basename
- libc.src.libgen.dirname
-
# stdbit.h entrypoints
libc.src.stdbit.stdc_bit_ceil_uc
libc.src.stdbit.stdc_bit_ceil_ui
diff --git a/libc/config/linux/riscv/entrypoints.txt b/libc/config/linux/riscv/entrypoints.txt
index bcdcf2320f7bd..a57efbb8e464d 100644
--- a/libc/config/linux/riscv/entrypoints.txt
+++ b/libc/config/linux/riscv/entrypoints.txt
@@ -109,10 +109,6 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.inttypes.strtoimax
libc.src.inttypes.strtoumax
- # libgen.h entrypoints
- libc.src.libgen.basename
- libc.src.libgen.dirname
-
# stdbit.h entrypoints
libc.src.stdbit.stdc_bit_ceil_uc
libc.src.stdbit.stdc_bit_ceil_ui
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
index f19da5902bba1..ce88a6749d9dc 100644
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -125,10 +125,6 @@ set(TARGET_LIBC_ENTRYPOINTS
libc.src.inttypes.wcstoimax
libc.src.inttypes.wcstoumax
- # libgen.h entrypoints
- libc.src.libgen.basename
- libc.src.libgen.dirname
-
# stdbit.h entrypoints
libc.src.stdbit.stdc_bit_ceil_uc
libc.src.stdbit.stdc_bit_ceil_ui
diff --git a/libc/docs/CMakeLists.txt b/libc/docs/CMakeLists.txt
index ded99393f9390..cf54edeae66de 100644
--- a/libc/docs/CMakeLists.txt
+++ b/libc/docs/CMakeLists.txt
@@ -54,7 +54,6 @@ if (SPHINX_FOUND)
float
glob
inttypes
- libgen
locale
nl_types
net/if
diff --git a/libc/docs/headers/index.rst b/libc/docs/headers/index.rst
index 893ddf839cccd..e818e1549c0d1 100644
--- a/libc/docs/headers/index.rst
+++ b/libc/docs/headers/index.rst
@@ -20,7 +20,6 @@ Implementation Status
float
glob
inttypes
- libgen
locale
math/index.rst
net/if
diff --git a/libc/include/CMakeLists.txt b/libc/include/CMakeLists.txt
index e8168687109b0..549dbd9e4c3f8 100644
--- a/libc/include/CMakeLists.txt
+++ b/libc/include/CMakeLists.txt
@@ -130,14 +130,6 @@ add_header_macro(
.llvm-libc-macros.float_macros
)
-add_header_macro(
- libgen
- ../libc/include/libgen.yaml
- libgen.h
- DEPENDS
- .llvm_libc_common_h
-)
-
add_header_macro(
limits
../libc/include/limits.yaml
diff --git a/libc/include/libgen.yaml b/libc/include/libgen.yaml
deleted file mode 100644
index c79ab79259be6..0000000000000
--- a/libc/include/libgen.yaml
+++ /dev/null
@@ -1,20 +0,0 @@
-header: libgen.h
-standards:
- - posix
-macros: []
-types: []
-enums: []
-objects: []
-functions:
- - name: basename
- standards:
- - posix
- return_type: char *
- arguments:
- - type: char *
- - name: dirname
- standards:
- - posix
- return_type: char *
- arguments:
- - type: char *
diff --git a/libc/src/CMakeLists.txt b/libc/src/CMakeLists.txt
index 56085c9632f59..9db314f54723b 100644
--- a/libc/src/CMakeLists.txt
+++ b/libc/src/CMakeLists.txt
@@ -7,7 +7,6 @@ add_subdirectory(dlfcn)
add_subdirectory(errno)
add_subdirectory(fenv)
add_subdirectory(inttypes)
-add_subdirectory(libgen)
add_subdirectory(link)
add_subdirectory(math)
add_subdirectory(netinet)
diff --git a/libc/src/__support/CPP/string_view.h b/libc/src/__support/CPP/string_view.h
index 7b98b7e5fb6c8..6991fd46a4ace 100644
--- a/libc/src/__support/CPP/string_view.h
+++ b/libc/src/__support/CPP/string_view.h
@@ -205,15 +205,6 @@ class string_view {
return npos;
}
- LIBC_INLINE constexpr size_t find_last_not_of(const char c,
- size_t end = npos) const {
- end = end >= size() ? size() : end + 1;
- for (; end > 0; --end)
- if ((*this)[end - 1] != c)
- return end - 1;
- return npos;
- }
-
// Finds the first character not equal to c in this view, starting at
// position From.
LIBC_INLINE constexpr size_t find_first_not_of(const char c,
diff --git a/libc/src/libgen/CMakeLists.txt b/libc/src/libgen/CMakeLists.txt
deleted file mode 100644
index 9c315a4e7b41d..0000000000000
--- a/libc/src/libgen/CMakeLists.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-add_entrypoint_object(
- basename
- SRCS
- basename.cpp
- HDRS
- basename.h
- DEPENDS
- libc.src.__support.CPP.string_view
- libc.src.__support.common
- libc.src.__support.macros.config
-)
-
-add_entrypoint_object(
- dirname
- SRCS
- dirname.cpp
- HDRS
- dirname.h
- DEPENDS
- libc.src.__support.CPP.string_view
- libc.src.__support.common
- libc.src.__support.macros.config
-)
diff --git a/libc/src/libgen/basename.cpp b/libc/src/libgen/basename.cpp
deleted file mode 100644
index acf53f2d446e9..0000000000000
--- a/libc/src/libgen/basename.cpp
+++ /dev/null
@@ -1,42 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// Implementation of basename.
-///
-//===----------------------------------------------------------------------===//
-
-#include "src/libgen/basename.h"
-#include "src/__support/CPP/string_view.h"
-#include "src/__support/common.h"
-#include "src/__support/macros/config.h"
-
-namespace LIBC_NAMESPACE_DECL {
-
-LLVM_LIBC_FUNCTION(char *, basename, (char *path)) {
- if (path == nullptr || path[0] == '\0')
- return const_cast<char *>(".");
-
- cpp::string_view sv(path);
- size_t last_non_slash = sv.find_last_not_of('/');
-
- if (last_non_slash == cpp::string_view::npos)
- return const_cast<char *>("/");
-
- size_t last_slash = sv.substr(0, last_non_slash).find_last_of('/');
-
- size_t start = (last_slash == cpp::string_view::npos) ? 0 : last_slash + 1;
- size_t end = last_non_slash + 1;
-
- if (end < sv.size())
- path[end] = '\0';
-
- return path + start;
-}
-
-} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/libgen/basename.h b/libc/src/libgen/basename.h
deleted file mode 100644
index 15239888aa97a..0000000000000
--- a/libc/src/libgen/basename.h
+++ /dev/null
@@ -1,30 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// Header for basename.
-///
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIBC_SRC_LIBGEN_BASENAME_H
-#define LLVM_LIBC_SRC_LIBGEN_BASENAME_H
-
-#include "src/__support/macros/config.h"
-
-namespace LIBC_NAMESPACE_DECL {
-
-/// Return the last component of a pathname.
-///
-/// \param path Pointer to the null-terminated pathname string.
-/// \return Pointer to the last component of path, or "." if path is null or
-/// empty, or "/" if path is all slashes.
-char *basename(char *path);
-
-} // namespace LIBC_NAMESPACE_DECL
-
-#endif // LLVM_LIBC_SRC_LIBGEN_BASENAME_H
diff --git a/libc/src/libgen/dirname.cpp b/libc/src/libgen/dirname.cpp
deleted file mode 100644
index 9dd958b63ce9f..0000000000000
--- a/libc/src/libgen/dirname.cpp
+++ /dev/null
@@ -1,48 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// Implementation of dirname.
-///
-//===----------------------------------------------------------------------===//
-
-#include "src/libgen/dirname.h"
-#include "src/__support/CPP/string_view.h"
-#include "src/__support/common.h"
-#include "src/__support/macros/config.h"
-
-namespace LIBC_NAMESPACE_DECL {
-
-LLVM_LIBC_FUNCTION(char *, dirname, (char *path)) {
- if (path == nullptr || path[0] == '\0')
- return const_cast<char *>(".");
-
- cpp::string_view sv(path);
- size_t last_non_slash = sv.find_last_not_of('/');
-
- if (last_non_slash == cpp::string_view::npos)
- return const_cast<char *>("/");
-
- size_t last_slash = sv.substr(0, last_non_slash).find_last_of('/');
-
- if (last_slash == cpp::string_view::npos)
- return const_cast<char *>(".");
-
- cpp::string_view dir_sv = sv.substr(0, last_slash);
- size_t dir_last_non_slash = dir_sv.find_last_not_of('/');
-
- if (dir_last_non_slash == cpp::string_view::npos) {
- path[1] = '\0';
- return path;
- }
-
- path[dir_last_non_slash + 1] = '\0';
- return path;
-}
-
-} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/libgen/dirname.h b/libc/src/libgen/dirname.h
deleted file mode 100644
index 4909b2eb222ad..0000000000000
--- a/libc/src/libgen/dirname.h
+++ /dev/null
@@ -1,30 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// Header for dirname.
-///
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIBC_SRC_LIBGEN_DIRNAME_H
-#define LLVM_LIBC_SRC_LIBGEN_DIRNAME_H
-
-#include "src/__support/macros/config.h"
-
-namespace LIBC_NAMESPACE_DECL {
-
-/// Return the directory component of a pathname.
-///
-/// \param path Pointer to the null-terminated pathname string.
-/// \return Pointer to the directory component of path, or "." if path is null
-/// or empty, or "/" if path is all slashes.
-char *dirname(char *path);
-
-} // namespace LIBC_NAMESPACE_DECL
-
-#endif // LLVM_LIBC_SRC_LIBGEN_DIRNAME_H
diff --git a/libc/test/src/CMakeLists.txt b/libc/test/src/CMakeLists.txt
index 45815c9bba8ca..dd232b29a7a7b 100644
--- a/libc/test/src/CMakeLists.txt
+++ b/libc/test/src/CMakeLists.txt
@@ -63,7 +63,6 @@ add_subdirectory(complex)
add_subdirectory(ctype)
add_subdirectory(errno)
add_subdirectory(fenv)
-add_subdirectory(libgen)
add_subdirectory(link)
add_subdirectory(math)
add_subdirectory(netinet)
diff --git a/libc/test/src/libgen/CMakeLists.txt b/libc/test/src/libgen/CMakeLists.txt
deleted file mode 100644
index d3ee13a9f1cab..0000000000000
--- a/libc/test/src/libgen/CMakeLists.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-add_custom_target(libc-libgen-tests)
-
-add_libc_test(
- basename_test
- SUITE
- libc-libgen-tests
- SRCS
- basename_test.cpp
- DEPENDS
- libc.src.libgen.basename
-)
-
-add_libc_test(
- dirname_test
- SUITE
- libc-libgen-tests
- SRCS
- dirname_test.cpp
- DEPENDS
- libc.src.libgen.dirname
-)
-
-add_libc_test(
- basename_death_test
- UNIT_TEST_ONLY
- SUITE
- libc-libgen-tests
- SRCS
- basename_death_test.cpp
- DEPENDS
- libc.src.libgen.basename
-)
-
-add_libc_test(
- dirname_death_test
- UNIT_TEST_ONLY
- SUITE
- libc-libgen-tests
- SRCS
- dirname_death_test.cpp
- DEPENDS
- libc.src.libgen.dirname
-)
diff --git a/libc/test/src/libgen/basename_death_test.cpp b/libc/test/src/libgen/basename_death_test.cpp
deleted file mode 100644
index 24100dc48aa1b..0000000000000
--- a/libc/test/src/libgen/basename_death_test.cpp
+++ /dev/null
@@ -1,22 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// Death tests for basename.
-///
-//===----------------------------------------------------------------------===//
-
-#include "src/libgen/basename.h"
-#include "test/UnitTest/Test.h"
-
-#ifdef ENABLE_SUBPROCESS_TESTS
-TEST(LlvmLibcBasenameTest, ModifyReturnValue) {
- char *r = LIBC_NAMESPACE::basename(nullptr);
- ASSERT_DEATH([r]() { r[0] = 'a'; }, WITH_SIGNAL(-1));
-}
-#endif
diff --git a/libc/test/src/libgen/basename_test.cpp b/libc/test/src/libgen/basename_test.cpp
deleted file mode 100644
index 2e8feef715137..0000000000000
--- a/libc/test/src/libgen/basename_test.cpp
+++ /dev/null
@@ -1,62 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// Unittests for basename.
-///
-//===----------------------------------------------------------------------===//
-
-#include "src/libgen/basename.h"
-#include "test/UnitTest/Test.h"
-
-TEST(LlvmLibcBasenameTest, NullPointer) {
- ASSERT_STREQ(LIBC_NAMESPACE::basename(nullptr), ".");
-}
-
-TEST(LlvmLibcBasenameTest, EmptyString) {
- char path[] = "";
- ASSERT_STREQ(LIBC_NAMESPACE::basename(path), ".");
-}
-
-TEST(LlvmLibcBasenameTest, RegularPath) {
- char path[] = "/usr/lib";
- ASSERT_STREQ(LIBC_NAMESPACE::basename(path), "lib");
-}
-
-TEST(LlvmLibcBasenameTest, TrailingSlash) {
- char path[] = "/usr/";
- ASSERT_STREQ(LIBC_NAMESPACE::basename(path), "usr");
- ASSERT_STREQ(path, "/usr");
-}
-
-TEST(LlvmLibcBasenameTest, SingleSlash) {
- char path[] = "/";
- ASSERT_STREQ(LIBC_NAMESPACE::basename(path), "/");
-}
-
-TEST(LlvmLibcBasenameTest, MultipleSlashes) {
- char path[] = "///";
- ASSERT_STREQ(LIBC_NAMESPACE::basename(path), "/");
-}
-
-TEST(LlvmLibcBasenameTest, SimpleName) {
- char path[] = "a";
- ASSERT_STREQ(LIBC_NAMESPACE::basename(path), "a");
-}
-
-TEST(LlvmLibcBasenameTest, SimpleNameTrailingSlash) {
- char path[] = "a/";
- ASSERT_STREQ(LIBC_NAMESPACE::basename(path), "a");
- ASSERT_STREQ(path, "a");
-}
-
-TEST(LlvmLibcBasenameTest, ComplexPath) {
- char path[] = "///a///";
- ASSERT_STREQ(LIBC_NAMESPACE::basename(path), "a");
- ASSERT_STREQ(path, "///a");
-}
diff --git a/libc/test/src/libgen/dirname_death_test.cpp b/libc/test/src/libgen/dirname_death_test.cpp
deleted file mode 100644
index e135a4ce60cd6..0000000000000
--- a/libc/test/src/libgen/dirname_death_test.cpp
+++ /dev/null
@@ -1,22 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// Death tests for dirname.
-///
-//===----------------------------------------------------------------------===//
-
-#include "src/libgen/dirname.h"
-#include "test/UnitTest/Test.h"
-
-#ifdef ENABLE_SUBPROCESS_TESTS
-TEST(LlvmLibcDirnameTest, ModifyReturnValue) {
- char *r = LIBC_NAMESPACE::dirname(nullptr);
- ASSERT_DEATH([r]() { r[0] = 'a'; }, WITH_SIGNAL(-1));
-}
-#endif
diff --git a/libc/test/src/libgen/dirname_test.cpp b/libc/test/src/libgen/dirname_test.cpp
deleted file mode 100644
index afd718fb6e559..0000000000000
--- a/libc/test/src/libgen/dirname_test.cpp
+++ /dev/null
@@ -1,74 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// Unittests for dirname.
-///
-//===----------------------------------------------------------------------===//
-
-#include "src/libgen/dirname.h"
-#include "test/UnitTest/Test.h"
-
-TEST(LlvmLibcDirnameTest, NullPointer) {
- ASSERT_STREQ(LIBC_NAMESPACE::dirname(nullptr), ".");
-}
-
-TEST(LlvmLibcDirnameTest, EmptyString) {
- char path[] = "";
- ASSERT_STREQ(LIBC_NAMESPACE::dirname(path), ".");
-}
-
-TEST(LlvmLibcDirnameTest, RegularPath) {
- char path[] = "/usr/lib";
- ASSERT_STREQ(LIBC_NAMESPACE::dirname(path), "/usr");
- ASSERT_STREQ(path, "/usr");
-}
-
-TEST(LlvmLibcDirnameTest, TrailingSlash) {
- char path[] = "/usr/";
- ASSERT_STREQ(LIBC_NAMESPACE::dirname(path), "/");
- ASSERT_STREQ(path, "/");
-}
-
-TEST(LlvmLibcDirnameTest, SingleSlash) {
- char path[] = "/";
- ASSERT_STREQ(LIBC_NAMESPACE::dirname(path), "/");
-}
-
-TEST(LlvmLibcDirnameTest, MultipleSlashes) {
- char path[] = "///";
- ASSERT_STREQ(LIBC_NAMESPACE::dirname(path), "/");
-}
-
-TEST(LlvmLibcDirnameTest, SimpleName) {
- char path[] = "a";
- ASSERT_STREQ(LIBC_NAMESPACE::dirname(path), ".");
-}
-
-TEST(LlvmLibcDirnameTest, SimpleNameTrailingSlash) {
- char path[] = "a/";
- ASSERT_STREQ(LIBC_NAMESPACE::dirname(path), ".");
-}
-
-TEST(LlvmLibcDirnameTest, ComplexPath) {
- char path[] = "///a///b///";
- ASSERT_STREQ(LIBC_NAMESPACE::dirname(path), "///a");
- ASSERT_STREQ(path, "///a");
-}
-
-TEST(LlvmLibcDirnameTest, SlashA) {
- char path[] = "/a";
- ASSERT_STREQ(LIBC_NAMESPACE::dirname(path), "/");
- ASSERT_STREQ(path, "/");
-}
-
-TEST(LlvmLibcDirnameTest, MultipleSlashesA) {
- char path[] = "///a";
- ASSERT_STREQ(LIBC_NAMESPACE::dirname(path), "/");
- ASSERT_STREQ(path, "/");
-}
diff --git a/libc/utils/docgen/libgen.yaml b/libc/utils/docgen/libgen.yaml
deleted file mode 100644
index 07aad5f1be55c..0000000000000
--- a/libc/utils/docgen/libgen.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-functions:
- basename:
- in-latest-posix: ''
- dirname:
- in-latest-posix: ''
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