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Message-Id: <20230328-nolibc-c99-v2-9-c989f2289222@weissschuh.net>
Date: Thu, 06 Apr 2023 21:54:55 +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 09/11] tools/nolibc: loongarch: use C89 comment syntax
Most of nolibc is already using C89 comments.
Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
tools/include/nolibc/arch-loongarch.h | 38 +++++++++++++++++------------------
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/tools/include/nolibc/arch-loongarch.h b/tools/include/nolibc/arch-loongarch.h
index 029ee3cd6baf..ec3b46a991a9 100644
--- a/tools/include/nolibc/arch-loongarch.h
+++ b/tools/include/nolibc/arch-loongarch.h
@@ -158,7 +158,7 @@ const unsigned long *_auxv __attribute__((weak));
#define LONG_ADDI "addi.w"
#define LONG_SLL "slli.w"
#define LONG_BSTRINS "bstrins.w"
-#else // __loongarch_grlen == 64
+#else /* __loongarch_grlen == 64 */
#define LONGLOG "3"
#define SZREG "8"
#define REG_L "ld.d"
@@ -173,28 +173,28 @@ const unsigned long *_auxv __attribute__((weak));
void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void)
{
__asm__ volatile (
- REG_L " $a0, $sp, 0\n" // argc (a0) was in the stack
- LONG_ADDI " $a1, $sp, "SZREG"\n" // argv (a1) = sp + SZREG
- LONG_SLL " $a2, $a0, "LONGLOG"\n" // envp (a2) = SZREG*argc ...
- LONG_ADDI " $a2, $a2, "SZREG"\n" // + SZREG (skip null)
- LONG_ADD " $a2, $a2, $a1\n" // + argv
+ REG_L " $a0, $sp, 0\n" /* argc (a0) was in the stack */
+ LONG_ADDI " $a1, $sp, "SZREG"\n" /* argv (a1) = sp + SZREG */
+ LONG_SLL " $a2, $a0, "LONGLOG"\n" /* envp (a2) = SZREG*argc ... */
+ LONG_ADDI " $a2, $a2, "SZREG"\n" /* + SZREG (skip null) */
+ LONG_ADD " $a2, $a2, $a1\n" /* + argv */
- "move $a3, $a2\n" // iterate a3 over envp to find auxv (after NULL)
- "0:\n" // do {
- REG_L " $a4, $a3, 0\n" // a4 = *a3;
- LONG_ADDI " $a3, $a3, "SZREG"\n" // a3 += sizeof(void*);
- "bne $a4, $zero, 0b\n" // } while (a4);
- "la.pcrel $a4, _auxv\n" // a4 = &_auxv
- LONG_S " $a3, $a4, 0\n" // store a3 into _auxv
+ "move $a3, $a2\n" /* iterate a3 over envp to find auxv (after NULL) */
+ "0:\n" /* do { */
+ REG_L " $a4, $a3, 0\n" /* a4 = *a3; */
+ LONG_ADDI " $a3, $a3, "SZREG"\n" /* a3 += sizeof(void*); */
+ "bne $a4, $zero, 0b\n" /* } while (a4); */
+ "la.pcrel $a4, _auxv\n" /* a4 = &_auxv */
+ LONG_S " $a3, $a4, 0\n" /* store a3 into _auxv */
- "la.pcrel $a3, environ\n" // a3 = &environ
- LONG_S " $a2, $a3, 0\n" // store envp(a2) into environ
- LONG_BSTRINS " $sp, $zero, 3, 0\n" // sp must be 16-byte aligned
- "bl main\n" // main() returns the status code, we'll exit with it.
- "li.w $a7, 93\n" // NR_exit == 93
+ "la.pcrel $a3, environ\n" /* a3 = &environ */
+ LONG_S " $a2, $a3, 0\n" /* store envp(a2) into environ */
+ LONG_BSTRINS " $sp, $zero, 3, 0\n" /* sp must be 16-byte aligned */
+ "bl main\n" /* main() returns the status code, we'll exit with it. */
+ "li.w $a7, 93\n" /* NR_exit == 93 */
"syscall 0\n"
);
__builtin_unreachable();
}
-#endif // _NOLIBC_ARCH_LOONGARCH_H
+#endif /* _NOLIBC_ARCH_LOONGARCH_H */
--
2.40.0
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