[libc-commits] [libc] [libc] assert.h modifications for newhdrgen (PR #98092)

[via libc-commits]

https://github.com/aaryanshukla updated https://github.com/llvm/llvm-project/pull/98092

>From bea73e66cab780c8b449d80b86a3b0fb3975e367 Mon Sep 17 00:00:00 2001
From: Aaryan Shukla <aaryanshukla at google.com>
Date: Mon, 8 Jul 2024 22:37:32 +0000
Subject: [PATCH 1/3] [libc] assert.h modifications for newhdrgen

- currently assert.h has a lot of code that does not have a position in
  our yaml files. Other files like errno.h and syscall.h have this code
in their respective .h.def files. We want to add that feature to
assert.h by changing assert.h.def.
---
 libc/include/assert.h.def       | 17 +++++++++++++++++
 libc/newhdrgen/yaml/assert.yaml | 15 +++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 libc/newhdrgen/yaml/assert.yaml

diff --git a/libc/include/assert.h.def b/libc/include/assert.h.def
index 15077e53e2ca4..d5ae14a1cd810 100644
--- a/libc/include/assert.h.def
+++ b/libc/include/assert.h.def
@@ -12,4 +12,21 @@
 // This file may be usefully included multiple times to change assert()'s
 // definition based on NDEBUG.
 
+#ifndef __cplusplus
+#undef static_assert
+#define static_assert _Static_assert
+#endif
+
+#undef assert
+#ifdef NDEBUG
+#define assert(e) (void)0
+#else
+#ifdef __cplusplus
+extern "C"
+#endif
+_Noreturn void __assert_fail(const char *, const char *, unsigned, const char *) __NOEXCEPT;
+#define assert(e)  \
+  ((e) ? (void)0 : __assert_fail(#e, __FILE__, __LINE__, __PRETTY_FUNCTION__))
+#endif
+
 %%public_api()
diff --git a/libc/newhdrgen/yaml/assert.yaml b/libc/newhdrgen/yaml/assert.yaml
new file mode 100644
index 0000000000000..85de6bc867b22
--- /dev/null
+++ b/libc/newhdrgen/yaml/assert.yaml
@@ -0,0 +1,15 @@
+header: assert.h
+macros: []
+types: []
+enums: []
+objects: []
+functions:
+  - name: __assert_fail 
+      - llvm_libc_ext
+    return_type: _Noreturn void
+    arguments:
+      - type: const char *
+      - type: const char *
+      - type: unsigned
+      - type: const char *
+    guard: __cplusplus
\ No newline at end of file

>From 9796467a786775b8d6a9297c9dc9e6f6bf8ea96a Mon Sep 17 00:00:00 2001
From: Aaryan Shukla <aaryanshukla at google.com>
Date: Mon, 8 Jul 2024 22:54:50 +0000
Subject: [PATCH 2/3] added newline

---
 libc/newhdrgen/yaml/assert.yaml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libc/newhdrgen/yaml/assert.yaml b/libc/newhdrgen/yaml/assert.yaml
index 85de6bc867b22..d1db8e9262208 100644
--- a/libc/newhdrgen/yaml/assert.yaml
+++ b/libc/newhdrgen/yaml/assert.yaml
@@ -12,4 +12,5 @@ functions:
       - type: const char *
       - type: unsigned
       - type: const char *
-    guard: __cplusplus
\ No newline at end of file
+    guard: __cplusplus
+  
\ No newline at end of file

>From 2753d0a5dc714c40cea46555527cfb266c14e3d6 Mon Sep 17 00:00:00 2001
From: Aaryan Shukla <aaryanshukla at google.com>
Date: Tue, 9 Jul 2024 02:21:20 +0000
Subject: [PATCH 3/3] removed assert info from api.td

- adjusted assert.h.def based on common.h
- fixed assert.yaml
---
 libc/config/baremetal/api.td    | 36 ---------------------------------
 libc/config/gpu/api.td          | 30 ---------------------------
 libc/config/linux/api.td        | 36 ---------------------------------
 libc/include/assert.h.def       |  8 +-------
 libc/newhdrgen/yaml/assert.yaml |  1 +
 5 files changed, 2 insertions(+), 109 deletions(-)

diff --git a/libc/config/baremetal/api.td b/libc/config/baremetal/api.td
index a6547d843c85e..08d62a0f58b89 100644
--- a/libc/config/baremetal/api.td
+++ b/libc/config/baremetal/api.td
@@ -5,42 +5,6 @@ include "spec/stdc_ext.td"
 include "spec/bsd_ext.td"
 include "spec/llvm_libc_stdfix_ext.td"
 
-def AssertMacro : MacroDef<"assert"> {
-  let Defn = [{
-    #undef assert
-
-    #ifdef NDEBUG
-    #define assert(e) (void)0
-    #else
-
-    #ifdef __cplusplus
-    extern "C"
-    #endif
-    _Noreturn void __assert_fail(const char *, const char *, unsigned, const char *) __NOEXCEPT;
-
-    #define assert(e)  \
-      ((e) ? (void)0 : __assert_fail(#e, __FILE__, __LINE__, __PRETTY_FUNCTION__))
-
-    #endif
-  }];
-}
-
-def StaticAssertMacro : MacroDef<"static_assert"> {
-  let Defn = [{
-    #ifndef __cplusplus
-    #undef static_assert
-    #define static_assert _Static_assert
-    #endif
-  }];
-}
-
-def AssertAPI : PublicAPI<"assert.h"> {
-  let Macros = [
-    AssertMacro,
-    StaticAssertMacro,
-  ];
-}
-
 def CTypeAPI : PublicAPI<"ctype.h"> {
 }
 
diff --git a/libc/config/gpu/api.td b/libc/config/gpu/api.td
index 523ad49ffa3fd..b7b70007cc38d 100644
--- a/libc/config/gpu/api.td
+++ b/libc/config/gpu/api.td
@@ -7,36 +7,6 @@ include "spec/gnu_ext.td"
 include "spec/stdc_ext.td"
 include "spec/llvm_libc_ext.td"
 
-def AssertMacro : MacroDef<"assert"> {
-  let Defn = [{
-    #undef assert
-
-    #ifdef NDEBUG
-    #define assert(e) (void)0
-    #else
-
-    #define assert(e)  \
-      ((e) ? (void)0 : __assert_fail(#e, __FILE__, __LINE__, __PRETTY_FUNCTION__))
-    #endif
-  }];
-}
-
-def StaticAssertMacro : MacroDef<"static_assert"> {
-  let Defn = [{
-    #ifndef __cplusplus
-    #undef static_assert
-    #define static_assert _Static_assert
-    #endif
-  }];
-}
-
-def AssertAPI : PublicAPI<"assert.h"> {
-  let Macros = [
-    AssertMacro,
-    StaticAssertMacro,
-  ];
-}
-
 def StringAPI : PublicAPI<"string.h"> {
   let Types = ["size_t"];
 }
diff --git a/libc/config/linux/api.td b/libc/config/linux/api.td
index eb0090c80b0da..562ece9f7c5db 100644
--- a/libc/config/linux/api.td
+++ b/libc/config/linux/api.td
@@ -9,42 +9,6 @@ include "spec/stdc_ext.td"
 include "spec/llvm_libc_ext.td"
 include "spec/llvm_libc_stdfix_ext.td"
 
-def AssertMacro : MacroDef<"assert"> {
-  let Defn = [{
-    #undef assert
-
-    #ifdef NDEBUG
-    #define assert(e) (void)0
-    #else
-
-    #ifdef __cplusplus
-    extern "C"
-    #endif
-    _Noreturn void __assert_fail(const char *, const char *, unsigned, const char *) __NOEXCEPT;
-
-    #define assert(e)  \
-      ((e) ? (void)0 : __assert_fail(#e, __FILE__, __LINE__, __PRETTY_FUNCTION__))
-
-    #endif
-  }];
-}
-
-def StaticAssertMacro : MacroDef<"static_assert"> {
-  let Defn = [{
-    #ifndef __cplusplus
-    #undef static_assert
-    #define static_assert _Static_assert
-    #endif
-  }];
-}
-
-def AssertAPI : PublicAPI<"assert.h"> {
-  let Macros = [
-    AssertMacro,
-    StaticAssertMacro,
-  ];
-}
-
 def CTypeAPI : PublicAPI<"ctype.h"> {
 }
 
diff --git a/libc/include/assert.h.def b/libc/include/assert.h.def
index d5ae14a1cd810..4d06bf74f7b04 100644
--- a/libc/include/assert.h.def
+++ b/libc/include/assert.h.def
@@ -12,18 +12,12 @@
 // This file may be usefully included multiple times to change assert()'s
 // definition based on NDEBUG.
 
-#ifndef __cplusplus
-#undef static_assert
-#define static_assert _Static_assert
-#endif
 
 #undef assert
 #ifdef NDEBUG
 #define assert(e) (void)0
 #else
-#ifdef __cplusplus
-extern "C"
-#endif
+
 _Noreturn void __assert_fail(const char *, const char *, unsigned, const char *) __NOEXCEPT;
 #define assert(e)  \
   ((e) ? (void)0 : __assert_fail(#e, __FILE__, __LINE__, __PRETTY_FUNCTION__))
diff --git a/libc/newhdrgen/yaml/assert.yaml b/libc/newhdrgen/yaml/assert.yaml
index d1db8e9262208..6281b23a69fad 100644
--- a/libc/newhdrgen/yaml/assert.yaml
+++ b/libc/newhdrgen/yaml/assert.yaml
@@ -5,6 +5,7 @@ enums: []
 objects: []
 functions:
   - name: __assert_fail 
+    standards:
       - llvm_libc_ext
     return_type: _Noreturn void
     arguments: