All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Thomas Weißschuh" <linux@weissschuh.net>
To: Willy Tarreau <w@1wt.eu>, Shuah Khan <shuah@kernel.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org,
	"Thomas Weißschuh" <linux@weissschuh.net>
Subject: [PATCH 5/6] tools/nolibc: loongarch: add stackprotector support
Date: Mon, 17 Apr 2023 18:01:35 +0200	[thread overview]
Message-ID: <20230408-nolibc-stackprotector-archs-v1-5-271f5c859c71@weissschuh.net> (raw)
In-Reply-To: <20230408-nolibc-stackprotector-archs-v1-0-271f5c859c71@weissschuh.net>

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
 tools/include/nolibc/arch-loongarch.h   | 7 ++++++-
 tools/testing/selftests/nolibc/Makefile | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/include/nolibc/arch-loongarch.h b/tools/include/nolibc/arch-loongarch.h
index ec3b46a991a9..07e3b1fd7262 100644
--- a/tools/include/nolibc/arch-loongarch.h
+++ b/tools/include/nolibc/arch-loongarch.h
@@ -149,6 +149,8 @@
 char **environ __attribute__((weak));
 const unsigned long *_auxv __attribute__((weak));
 
+#define __ARCH_SUPPORTS_STACK_PROTECTOR
+
 #if __loongarch_grlen == 32
 #define LONGLOG      "2"
 #define SZREG        "4"
@@ -170,9 +172,12 @@ const unsigned long *_auxv __attribute__((weak));
 #endif
 
 /* startup code */
-void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void)
+void __attribute__((weak,noreturn,optimize("omit-frame-pointer"),no_stack_protector)) _start(void)
 {
 	__asm__ volatile (
+#ifdef NOLIBC_STACKPROTECTOR
+		"bl __stack_chk_init\n"               /* initialize stack protector                          */
+#endif
 		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 ...                          */
diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index 8feffc790a31..efa7a51e0fcd 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -85,6 +85,7 @@ CFLAGS_STKP_x86 = $(CFLAGS_STACKPROTECTOR)
 CFLAGS_STKP_arm64 = $(CFLAGS_STACKPROTECTOR)
 CFLAGS_STKP_arm = $(CFLAGS_STACKPROTECTOR)
 CFLAGS_STKP_riscv = $(CFLAGS_STACKPROTECTOR)
+CFLAGS_STKP_loongarch = $(CFLAGS_STACKPROTECTOR)
 CFLAGS_s390 = -m64
 CFLAGS  ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 \
 		$(call cc-option,-fno-stack-protector) \

-- 
2.40.0


WARNING: multiple messages have this Message-ID (diff)
From: "Thomas Weißschuh" <linux@weissschuh.net>
To: Willy Tarreau <w@1wt.eu>, Shuah Khan <shuah@kernel.org>,
	 Paul Walmsley <paul.walmsley@sifive.com>,
	 Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org,
	"Thomas Weißschuh" <linux@weissschuh.net>
Subject: [PATCH 5/6] tools/nolibc: loongarch: add stackprotector support
Date: Mon, 17 Apr 2023 18:01:35 +0200	[thread overview]
Message-ID: <20230408-nolibc-stackprotector-archs-v1-5-271f5c859c71@weissschuh.net> (raw)
In-Reply-To: <20230408-nolibc-stackprotector-archs-v1-0-271f5c859c71@weissschuh.net>

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
 tools/include/nolibc/arch-loongarch.h   | 7 ++++++-
 tools/testing/selftests/nolibc/Makefile | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/include/nolibc/arch-loongarch.h b/tools/include/nolibc/arch-loongarch.h
index ec3b46a991a9..07e3b1fd7262 100644
--- a/tools/include/nolibc/arch-loongarch.h
+++ b/tools/include/nolibc/arch-loongarch.h
@@ -149,6 +149,8 @@
 char **environ __attribute__((weak));
 const unsigned long *_auxv __attribute__((weak));
 
+#define __ARCH_SUPPORTS_STACK_PROTECTOR
+
 #if __loongarch_grlen == 32
 #define LONGLOG      "2"
 #define SZREG        "4"
@@ -170,9 +172,12 @@ const unsigned long *_auxv __attribute__((weak));
 #endif
 
 /* startup code */
-void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void)
+void __attribute__((weak,noreturn,optimize("omit-frame-pointer"),no_stack_protector)) _start(void)
 {
 	__asm__ volatile (
+#ifdef NOLIBC_STACKPROTECTOR
+		"bl __stack_chk_init\n"               /* initialize stack protector                          */
+#endif
 		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 ...                          */
diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index 8feffc790a31..efa7a51e0fcd 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -85,6 +85,7 @@ CFLAGS_STKP_x86 = $(CFLAGS_STACKPROTECTOR)
 CFLAGS_STKP_arm64 = $(CFLAGS_STACKPROTECTOR)
 CFLAGS_STKP_arm = $(CFLAGS_STACKPROTECTOR)
 CFLAGS_STKP_riscv = $(CFLAGS_STACKPROTECTOR)
+CFLAGS_STKP_loongarch = $(CFLAGS_STACKPROTECTOR)
 CFLAGS_s390 = -m64
 CFLAGS  ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 \
 		$(call cc-option,-fno-stack-protector) \

-- 
2.40.0


_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

  parent reply	other threads:[~2023-04-17 16:02 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-17 16:01 [PATCH 0/6] tools/nolibc: add stackprotector support for more architectures Thomas Weißschuh
2023-04-17 16:01 ` Thomas Weißschuh
2023-04-17 16:01 ` [PATCH 1/6] selftests/nolibc: reduce syscalls during space padding Thomas Weißschuh
2023-04-17 16:01   ` Thomas Weißschuh
2023-04-17 16:01 ` [PATCH 2/6] tools/nolibc: riscv: add stackprotector support Thomas Weißschuh
2023-04-17 16:01   ` Thomas Weißschuh
2023-04-17 19:35   ` Palmer Dabbelt
2023-04-17 19:35     ` Palmer Dabbelt
2023-04-17 16:01 ` [PATCH 3/6] tools/nolibc: aarch64: " Thomas Weißschuh
2023-04-17 16:01   ` Thomas Weißschuh
2023-04-17 16:01 ` [PATCH 4/6] tools/nolibc: arm: " Thomas Weißschuh
2023-04-17 16:01   ` Thomas Weißschuh
2023-04-17 16:01 ` Thomas Weißschuh [this message]
2023-04-17 16:01   ` [PATCH 5/6] tools/nolibc: loongarch: " Thomas Weißschuh
2023-04-17 16:01 ` [PATCH 6/6] tools/nolibc: mips: " Thomas Weißschuh
2023-04-17 16:01   ` Thomas Weißschuh

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20230408-nolibc-stackprotector-archs-v1-5-271f5c859c71@weissschuh.net \
    --to=linux@weissschuh.net \
    --cc=aou@eecs.berkeley.edu \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-kselftest@vger.kernel.org \
    --cc=linux-riscv@lists.infradead.org \
    --cc=palmer@dabbelt.com \
    --cc=paul.walmsley@sifive.com \
    --cc=shuah@kernel.org \
    --cc=w@1wt.eu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.