From: "Paul E. McKenney" <[email protected]>
To: [email protected]
Cc: [email protected], [email protected], [email protected],
Willy Tarreau <[email protected]>, Pranith Kumar <[email protected]>,
"Paul E . McKenney" <[email protected]>
Subject: [PATCH nolibc 01/18] tools/nolibc: make argc 32-bit in riscv startup code
Date: Wed, 31 Aug 2022 11:21:29 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <20220831182113.GA2697286@paulmck-ThinkPad-P17-Gen-1>
From: Willy Tarreau <[email protected]>
The "ld a0, 0(sp)" instruction doesn't build on RISCV32 because that
would load a 64-bit value into a 32-bit register. But argc 32-bit,
not 64, so we ought to use "lw" here. Tested on both RISCV32 and
RISCV64.
Cc: Pranith Kumar <[email protected]>
Signed-off-by: Willy Tarreau <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
---
tools/include/nolibc/arch-riscv.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/include/nolibc/arch-riscv.h b/tools/include/nolibc/arch-riscv.h
index 95e2b79249257..ba04771cb3a34 100644
--- a/tools/include/nolibc/arch-riscv.h
+++ b/tools/include/nolibc/arch-riscv.h
@@ -190,7 +190,7 @@ __asm__ (".section .text\n"
".option norelax\n"
"lla gp, __global_pointer$\n"
".option pop\n"
- "ld a0, 0(sp)\n" // argc (a0) was in the stack
+ "lw a0, 0(sp)\n" // argc (a0) was in the stack
"add a1, sp, "SZREG"\n" // argv (a1) = sp
"slli a2, a0, "PTRLOG"\n" // envp (a2) = SZREG*argc ...
"add a2, a2, "SZREG"\n" // + SZREG (skip null)
--
2.31.1.189.g2e36527f23
next prev parent reply other threads:[~2022-08-31 18:21 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-31 18:21 [PATCH nolibc 0/18] nolibc updates for v6.1 Paul E. McKenney
2022-08-31 18:21 ` Paul E. McKenney [this message]
2022-08-31 18:21 ` [PATCH rcu 1/2] torture: Optionally flush printk() buffers before powering off Paul E. McKenney
2022-09-01 9:12 ` John Ogness
2022-09-01 10:17 ` Paul E. McKenney
2022-08-31 18:21 ` [PATCH rcu 2/2] rcutorture: Use the barrier operation specified by cur_ops Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 02/18] tools/nolibc: fix build warning in sys_mmap() when my_syscall6 is not defined Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 03/18] tools/nolibc: make sys_mmap() automatically use the right __NR_mmap definition Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 04/18] selftests/nolibc: add basic infrastructure to ease creation of nolibc tests Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 05/18] selftests/nolibc: support a test definition format Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 06/18] selftests/nolibc: implement a few tests for various syscalls Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 07/18] selftests/nolibc: add a few tests for some libc functions Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 08/18] selftests/nolibc: exit with poweroff on success when getpid() == 1 Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 09/18] selftests/nolibc: on x86, support exiting with isa-debug-exit Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 10/18] selftests/nolibc: recreate and populate /dev and /proc if missing Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 11/18] selftests/nolibc: condition some tests on /proc existence Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 12/18] selftests/nolibc: support glibc as well Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 13/18] selftests/nolibc: add a "kernel" target to build the kernel with the initramfs Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 14/18] selftests/nolibc: add a "defconfig" target Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 15/18] selftests/nolibc: add a "run" target to start the kernel in QEMU Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 16/18] selftests/nolibc: "sysroot" target installs a local copy of the sysroot Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 17/18] selftests/nolibc: add a "help" target Paul E. McKenney
2022-08-31 18:21 ` [PATCH nolibc 18/18] selftests/nolibc: Avoid generated files being committed Paul E. McKenney
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