musl - [PATCH] add execveat syscall wrapper

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Message-Id: <19f1a095415.241d45e41204294.8165301962567043834@soss.website>
Date: Tue, 30 Jun 2026 14:37:26 -0500
From: Skye Soss <skye@...s.website>
To: "musl" <musl@...ts.openwall.com>
Subject: [PATCH] add execveat syscall wrapper

the execveat syscall was added to Linux in v4.0 (released in 2015), 

and the libc wrapper function was added to glibc in 2021
 

the AT_EXECVEAT_CHECK option was added to Linux 6.14, so the 

syscall has the potential to become more widely used

--- 

 include/unistd.h       | 1 + 

 src/process/execveat.c | 7 +++++++ 

 2 files changed, 8 insertions(+) 

 create mode 100644 src/process/execveat.c 

 

diff --git a/include/unistd.h b/include/unistd.h 

index 42b0e82b..a4bd6ddd 100644 

--- a/include/unistd.h 

+++ b/include/unistd.h 

@@ -95,6 +95,7 @@ int execvp(const char *, char *const []); 

 int execlp(const char *, const char *, ...); 

 int fexecve(int, char *const [], char *const []); 

 _Noreturn void _exit(int); 

+int execveat(int, const char *, char *const [], char *const [], int); 

 

 pid_t getpid(void); 

 pid_t getppid(void); 

diff --git a/src/process/execveat.c b/src/process/execveat.c 

new file mode 100644 

index 00000000..a9d12877 

--- /dev/null 

+++ b/src/process/execveat.c 

@@ -0,0 +1,7 @@ 

+#include <unistd.h> 

+#include "syscall.h" 

+ 

+int execveat(int dirfd, const char *path, char *const argv[], char *const envp[], int flags) 

+{ 

+    return syscall(SYS_execveat, dirfd, path, argv, envp, flags); 

+} 

-- 

2.54.0
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