[libc-commits] [libc] [libunwind] Enough to get `libc` to build `clang` (PR #97231)

[Izaak Schroeder via libc-commits]

https://github.com/izaakschroeder created https://github.com/llvm/llvm-project/pull/97231

Companion to https://github.com/llvm/llvm-project/issues/97191

>From 31dc769c1866a4a0100dde0a3743c215a9a5f5eb Mon Sep 17 00:00:00 2001
From: Izaak Schroeder <izaak.schroeder at gmail.com>
Date: Sun, 30 Jun 2024 13:33:16 -0700
Subject: [PATCH 1/2] [libc]: add missing aarch64 headers

---
 libc/config/linux/aarch64/entrypoints.txt | 3 +++
 libc/config/linux/aarch64/headers.txt     | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index 8a26536cea9a0..b59400db81fed 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -308,6 +308,9 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.unistd.unlink
     libc.src.unistd.unlinkat
     libc.src.unistd.write
+
+    # XXX
+    libc.src.assert.__assert_fail
 )
 
 set(TARGET_LIBM_ENTRYPOINTS
diff --git a/libc/config/linux/aarch64/headers.txt b/libc/config/linux/aarch64/headers.txt
index 7d25877cefcc8..ed126d6128871 100644
--- a/libc/config/linux/aarch64/headers.txt
+++ b/libc/config/linux/aarch64/headers.txt
@@ -31,4 +31,10 @@ set(TARGET_PUBLIC_HEADERS
     libc.include.sys_ioctl
     # Disabled due to epoll_wait syscalls not being available on this platform.
     # libc.include.sys_epoll
+
+    # XXX
+    libc.include.sys_auxv
+    libc.include.fcntl
+    libc.include.sched
+    libc.include.sys_stat
 )

>From a5f8ee220c088a39d9b4bf60986166e83ffafffa Mon Sep 17 00:00:00 2001
From: Izaak Schroeder <izaak.schroeder at gmail.com>
Date: Sun, 30 Jun 2024 13:33:38 -0700
Subject: [PATCH 2/2] [libunwind]: remove needless `sys/uio.h`

No reference to `readv` or `writev`.
---
 libunwind/src/UnwindCursor.hpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/libunwind/src/UnwindCursor.hpp b/libunwind/src/UnwindCursor.hpp
index 66fe8e2a32cca..677e842d8a22b 100644
--- a/libunwind/src/UnwindCursor.hpp
+++ b/libunwind/src/UnwindCursor.hpp
@@ -36,7 +36,6 @@
 #include <errno.h>
 #include <signal.h>
 #include <sys/syscall.h>
-#include <sys/uio.h>
 #include <unistd.h>
 #define _LIBUNWIND_CHECK_LINUX_SIGRETURN 1
 #endif