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Message-Id: <20230328-nolibc-c99-v2-4-c989f2289222@weissschuh.net>
Date: Thu, 06 Apr 2023 21:54:50 +0000
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Willy Tarreau <w@....eu>, Shuah Khan <shuah@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH v2 04/11] tools/nolibc: x86_64: use C89 comment syntax
Most of nolibc is already using C89 comments.
Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
tools/include/nolibc/arch-x86_64.h | 34 +++++++++++++++++-----------------
1 file changed, 17 insertions(+), 17 deletions(-)
diff --git a/tools/include/nolibc/arch-x86_64.h b/tools/include/nolibc/arch-x86_64.h
index f7f2a11d4c3b..d98f6c89d143 100644
--- a/tools/include/nolibc/arch-x86_64.h
+++ b/tools/include/nolibc/arch-x86_64.h
@@ -194,27 +194,27 @@ void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void)
{
__asm__ volatile (
#ifdef NOLIBC_STACKPROTECTOR
- "call __stack_chk_init\n" // initialize stack protector
+ "call __stack_chk_init\n" /* initialize stack protector */
#endif
- "pop %rdi\n" // argc (first arg, %rdi)
- "mov %rsp, %rsi\n" // argv[] (second arg, %rsi)
- "lea 8(%rsi,%rdi,8),%rdx\n" // then a NULL then envp (third arg, %rdx)
- "mov %rdx, environ\n" // save environ
- "xor %ebp, %ebp\n" // zero the stack frame
- "mov %rdx, %rax\n" // search for auxv (follows NULL after last env)
+ "pop %rdi\n" /* argc (first arg, %rdi) */
+ "mov %rsp, %rsi\n" /* argv[] (second arg, %rsi) */
+ "lea 8(%rsi,%rdi,8),%rdx\n" /* then a NULL then envp (third arg, %rdx) */
+ "mov %rdx, environ\n" /* save environ */
+ "xor %ebp, %ebp\n" /* zero the stack frame */
+ "mov %rdx, %rax\n" /* search for auxv (follows NULL after last env) */
"0:\n"
- "add $8, %rax\n" // search for auxv using rax, it follows the
- "cmp -8(%rax), %rbp\n" // ... NULL after last env (rbp is zero here)
+ "add $8, %rax\n" /* search for auxv using rax, it follows the */
+ "cmp -8(%rax), %rbp\n" /* ... NULL after last env (rbp is zero here) */
"jnz 0b\n"
- "mov %rax, _auxv\n" // save it into _auxv
- "and $-16, %rsp\n" // x86 ABI : esp must be 16-byte aligned before call
- "call main\n" // main() returns the status code, we'll exit with it.
- "mov %eax, %edi\n" // retrieve exit code (32 bit)
- "mov $60, %eax\n" // NR_exit == 60
- "syscall\n" // really exit
- "hlt\n" // ensure it does not return
+ "mov %rax, _auxv\n" /* save it into _auxv */
+ "and $-16, %rsp\n" /* x86 ABI : esp must be 16-byte aligned before call */
+ "call main\n" /* main() returns the status code, we'll exit with it. */
+ "mov %eax, %edi\n" /* retrieve exit code (32 bit) */
+ "mov $60, %eax\n" /* NR_exit == 60 */
+ "syscall\n" /* really exit */
+ "hlt\n" /* ensure it does not return */
);
__builtin_unreachable();
}
-#endif // _NOLIBC_ARCH_X86_64_H
+#endif /* _NOLIBC_ARCH_X86_64_H */
--
2.40.0
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