[libc][annex_k] Add libannex_k as build target in LLVM libc.

[bassiounix]

RFC https://discourse.llvm.org/t/rfc-bounds-checking-interfaces-for-llvm-libc/87685

Add libannex_k.a as build target in LLVM libc.

[bassiounix]

Warning

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• [libc][annex_k] Add libannex_k as build target in LLVM libc. #163869 👈 (View in Graphite)
• [libc][annex_k] Add constraint_handler_t. #163239 : 2 other dependent PRs (#163309 , #164089 )
• [libc][annex_k] Add rsize_t. #163238
• [libc][annex_k] Add errno_t. #163094
• [libc][annex_k] Add Annex K support macros. #163100
• main

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[llvmbot]

@llvm/pr-subscribers-backend-risc-v

@llvm/pr-subscribers-libc

Author: Muhammad Bassiouni (bassiounix)

Changes

RFC https://discourse.llvm.org/t/rfc-bounds-checking-interfaces-for-llvm-libc/87685

Add libannex_k.a as build target in LLVM libc.

---

Full diff: https://github.com/llvm/llvm-project/pull/163869.diff

4 Files Affected:

• (modified) libc/config/linux/aarch64/entrypoints.txt (+3)
• (modified) libc/config/linux/riscv/entrypoints.txt (+3)
• (modified) libc/config/linux/x86_64/entrypoints.txt (+3)
• (modified) libc/lib/CMakeLists.txt (+6-3)

diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index 4824684103983..f372a7a4c0af0 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -1,3 +1,5 @@
+set(TARGET_ANNEX_K_ENTRYPOINTS "")
+
 set(TARGET_LIBC_ENTRYPOINTS
     # ctype.h entrypoints
     libc.src.ctype.isalnum
@@ -1176,4 +1178,5 @@ endif()
 set(TARGET_LLVMLIBC_ENTRYPOINTS
   ${TARGET_LIBC_ENTRYPOINTS}
   ${TARGET_LIBM_ENTRYPOINTS}
+  ${TARGET_ANNEX_K_ENTRYPOINTS}
 )
diff --git a/libc/config/linux/riscv/entrypoints.txt b/libc/config/linux/riscv/entrypoints.txt
index 5f407e842121e..18043c9e43759 100644
--- a/libc/config/linux/riscv/entrypoints.txt
+++ b/libc/config/linux/riscv/entrypoints.txt
@@ -1,3 +1,5 @@
+set(TARGET_ANNEX_K_ENTRYPOINTS "")
+
 set(TARGET_LIBC_ENTRYPOINTS
     # ctype.h entrypoints
     libc.src.ctype.isalnum
@@ -1321,4 +1323,5 @@ endif()
 set(TARGET_LLVMLIBC_ENTRYPOINTS
   ${TARGET_LIBC_ENTRYPOINTS}
   ${TARGET_LIBM_ENTRYPOINTS}
+  ${TARGET_ANNEX_K_ENTRYPOINTS}
 )
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
index 87b78a337b875..20d6274fec223 100644
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -1,3 +1,5 @@
+set(TARGET_ANNEX_K_ENTRYPOINTS "")
+
 set(TARGET_LIBC_ENTRYPOINTS
     # ctype.h entrypoints
     libc.src.ctype.isalnum
@@ -1377,4 +1379,5 @@ endif()
 set(TARGET_LLVMLIBC_ENTRYPOINTS
   ${TARGET_LIBC_ENTRYPOINTS}
   ${TARGET_LIBM_ENTRYPOINTS}
+  ${TARGET_ANNEX_K_ENTRYPOINTS}
 )
diff --git a/libc/lib/CMakeLists.txt b/libc/lib/CMakeLists.txt
index ce0b07fb6cb49..6fde2c8fc827d 100644
--- a/libc/lib/CMakeLists.txt
+++ b/libc/lib/CMakeLists.txt
@@ -2,10 +2,13 @@ set(libc_archive_targets "")
 set(libc_archive_names "")
 set(libc_archive_entrypoint_lists "")
 if(LLVM_LIBC_FULL_BUILD)
-  list(APPEND libc_archive_names c m)
-  list(APPEND libc_archive_targets libc libm)
+  list(APPEND libc_archive_names c m annex_k)
+  list(APPEND libc_archive_targets libc libm libannex_k)
   list(APPEND libc_archive_entrypoint_lists
-       TARGET_LIBC_ENTRYPOINTS TARGET_LIBM_ENTRYPOINTS)
+       TARGET_LIBC_ENTRYPOINTS
+       TARGET_LIBM_ENTRYPOINTS
+       TARGET_ANNEX_K_ENTRYPOINTS
+  )
 else()
   list(APPEND libc_archive_names llvmlibc)
   list(APPEND libc_archive_targets libc)