Re: [PATCH V9 12/21] csky: ELF and module probe
On Thu, Oct 18, 2018 at 4:49 AM Guo Ren wrote: > > On Wed, Oct 17, 2018 at 05:18:49PM +0200, Arnd Bergmann wrote: > > On Tue, Oct 16, 2018 at 5:02 AM Guo Ren wrote: > > > > > > This patch adds ELF definition and module relocate codes. > > > > > > Signed-off-by: Guo Ren > > > Cc: Arnd Bergmann > > > > > +#ifdef __cskyBE__ > > > +#define ELF_DATA ELFDATA2MSB > > > +#else > > > +#define ELF_DATA ELFDATA2LSB > > > +#endif > > > > You removed support for big-endian, right? I guess the #ifdef can also > > get removed here then. Aside from that, > Now, we only support little-endian and it could be removed. But maybe we > need support big-endian in future, so I keep it here. Ok, just made sure it was intentional. Arnd
Re: [PATCH V9 12/21] csky: ELF and module probe
On Thu, Oct 18, 2018 at 4:49 AM Guo Ren wrote: > > On Wed, Oct 17, 2018 at 05:18:49PM +0200, Arnd Bergmann wrote: > > On Tue, Oct 16, 2018 at 5:02 AM Guo Ren wrote: > > > > > > This patch adds ELF definition and module relocate codes. > > > > > > Signed-off-by: Guo Ren > > > Cc: Arnd Bergmann > > > > > +#ifdef __cskyBE__ > > > +#define ELF_DATA ELFDATA2MSB > > > +#else > > > +#define ELF_DATA ELFDATA2LSB > > > +#endif > > > > You removed support for big-endian, right? I guess the #ifdef can also > > get removed here then. Aside from that, > Now, we only support little-endian and it could be removed. But maybe we > need support big-endian in future, so I keep it here. Ok, just made sure it was intentional. Arnd
Re: [PATCH V9 12/21] csky: ELF and module probe
On Wed, Oct 17, 2018 at 05:18:49PM +0200, Arnd Bergmann wrote: > On Tue, Oct 16, 2018 at 5:02 AM Guo Ren wrote: > > > > This patch adds ELF definition and module relocate codes. > > > > Signed-off-by: Guo Ren > > Cc: Arnd Bergmann > > > +#ifdef __cskyBE__ > > +#define ELF_DATA ELFDATA2MSB > > +#else > > +#define ELF_DATA ELFDATA2LSB > > +#endif > > You removed support for big-endian, right? I guess the #ifdef can also > get removed here then. Aside from that, Now, we only support little-endian and it could be removed. But maybe we need support big-endian in future, so I keep it here. Best Regards Guo Ren
Re: [PATCH V9 12/21] csky: ELF and module probe
On Wed, Oct 17, 2018 at 05:18:49PM +0200, Arnd Bergmann wrote: > On Tue, Oct 16, 2018 at 5:02 AM Guo Ren wrote: > > > > This patch adds ELF definition and module relocate codes. > > > > Signed-off-by: Guo Ren > > Cc: Arnd Bergmann > > > +#ifdef __cskyBE__ > > +#define ELF_DATA ELFDATA2MSB > > +#else > > +#define ELF_DATA ELFDATA2LSB > > +#endif > > You removed support for big-endian, right? I guess the #ifdef can also > get removed here then. Aside from that, Now, we only support little-endian and it could be removed. But maybe we need support big-endian in future, so I keep it here. Best Regards Guo Ren
Re: [PATCH V9 12/21] csky: ELF and module probe
On Tue, Oct 16, 2018 at 5:02 AM Guo Ren wrote: > > This patch adds ELF definition and module relocate codes. > > Signed-off-by: Guo Ren > Cc: Arnd Bergmann > +#ifdef __cskyBE__ > +#define ELF_DATA ELFDATA2MSB > +#else > +#define ELF_DATA ELFDATA2LSB > +#endif You removed support for big-endian, right? I guess the #ifdef can also get removed here then. Aside from that, Reviewed-by: Arnd Bergmann
Re: [PATCH V9 12/21] csky: ELF and module probe
On Tue, Oct 16, 2018 at 5:02 AM Guo Ren wrote: > > This patch adds ELF definition and module relocate codes. > > Signed-off-by: Guo Ren > Cc: Arnd Bergmann > +#ifdef __cskyBE__ > +#define ELF_DATA ELFDATA2MSB > +#else > +#define ELF_DATA ELFDATA2LSB > +#endif You removed support for big-endian, right? I guess the #ifdef can also get removed here then. Aside from that, Reviewed-by: Arnd Bergmann
[PATCH V9 12/21] csky: ELF and module probe
This patch adds ELF definition and module relocate codes.
Signed-off-by: Guo Ren
Cc: Arnd Bergmann
---
arch/csky/abiv1/inc/abi/elf.h | 26
arch/csky/abiv2/inc/abi/elf.h | 43
arch/csky/include/asm/elf.h | 85 +++
arch/csky/kernel/module.c | 92 +++
4 files changed, 246 insertions(+)
create mode 100644 arch/csky/abiv1/inc/abi/elf.h
create mode 100644 arch/csky/abiv2/inc/abi/elf.h
create mode 100644 arch/csky/include/asm/elf.h
create mode 100644 arch/csky/kernel/module.c
diff --git a/arch/csky/abiv1/inc/abi/elf.h b/arch/csky/abiv1/inc/abi/elf.h
new file mode 100644
index 000..3058cc0
--- /dev/null
+++ b/arch/csky/abiv1/inc/abi/elf.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __ABI_CSKY_ELF_H
+#define __ABI_CSKY_ELF_H
+
+#define ELF_CORE_COPY_REGS(pr_reg, regs) do { \
+ pr_reg[0] = regs->pc; \
+ pr_reg[1] = regs->regs[9]; \
+ pr_reg[2] = regs->usp; \
+ pr_reg[3] = regs->sr; \
+ pr_reg[4] = regs->a0; \
+ pr_reg[5] = regs->a1; \
+ pr_reg[6] = regs->a2; \
+ pr_reg[7] = regs->a3; \
+ pr_reg[8] = regs->regs[0]; \
+ pr_reg[9] = regs->regs[1]; \
+ pr_reg[10] = regs->regs[2]; \
+ pr_reg[11] = regs->regs[3]; \
+ pr_reg[12] = regs->regs[4]; \
+ pr_reg[13] = regs->regs[5]; \
+ pr_reg[14] = regs->regs[6]; \
+ pr_reg[15] = regs->regs[7]; \
+ pr_reg[16] = regs->regs[8]; \
+ pr_reg[17] = regs->lr; \
+} while (0);
+#endif /* __ABI_CSKY_ELF_H */
diff --git a/arch/csky/abiv2/inc/abi/elf.h b/arch/csky/abiv2/inc/abi/elf.h
new file mode 100644
index 000..290f49e
--- /dev/null
+++ b/arch/csky/abiv2/inc/abi/elf.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __ABI_CSKY_ELF_H
+#define __ABI_CSKY_ELF_H
+
+/* The member sort in array pr_reg[x] is defined by GDB. */
+#define ELF_CORE_COPY_REGS(pr_reg, regs) do { \
+ pr_reg[0] = regs->pc; \
+ pr_reg[1] = regs->a1; \
+ pr_reg[2] = regs->a0; \
+ pr_reg[3] = regs->sr; \
+ pr_reg[4] = regs->a2; \
+ pr_reg[5] = regs->a3; \
+ pr_reg[6] = regs->regs[0]; \
+ pr_reg[7] = regs->regs[1]; \
+ pr_reg[8] = regs->regs[2]; \
+ pr_reg[9] = regs->regs[3]; \
+ pr_reg[10] = regs->regs[4]; \
+ pr_reg[11] = regs->regs[5]; \
+ pr_reg[12] = regs->regs[6]; \
+ pr_reg[13] = regs->regs[7]; \
+ pr_reg[14] = regs->regs[8]; \
+ pr_reg[15] = regs->regs[9]; \
+ pr_reg[16] = regs->usp; \
+ pr_reg[17] = regs->lr; \
+ pr_reg[18] = regs->exregs[0]; \
+ pr_reg[19] = regs->exregs[1]; \
+ pr_reg[20] = regs->exregs[2]; \
+ pr_reg[21] = regs->exregs[3]; \
+ pr_reg[22] = regs->exregs[4]; \
+ pr_reg[23] = regs->exregs[5]; \
+ pr_reg[24] = regs->exregs[6]; \
+ pr_reg[25] = regs->exregs[7]; \
+ pr_reg[26] = regs->exregs[8]; \
+ pr_reg[27] = regs->exregs[9]; \
+ pr_reg[28] = regs->exregs[10]; \
+ pr_reg[29] = regs->exregs[11]; \
+ pr_reg[30] = regs->exregs[12]; \
+ pr_reg[31] = regs->exregs[13]; \
+ pr_reg[32] = regs->exregs[14]; \
+ pr_reg[33] = regs->tls; \
+} while (0);
+#endif /* __ABI_CSKY_ELF_H */
diff --git a/arch/csky/include/asm/elf.h b/arch/csky/include/asm/elf.h
new file mode 100644
index 000..773b133
--- /dev/null
+++ b/arch/csky/include/asm/elf.h
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+
+#ifndef __ASM_CSKY_ELF_H
+#define __ASM_CSKY_ELF_H
+
+#include
+#include
+
+#define ELF_ARCH 252
+
+/* CSKY Relocations */
+#define R_CSKY_NONE 0
+#define R_CSKY_32 1
+#define R_CSKY_PCIMM8BY4 2
+#define R_CSKY_PCIMM11BY2 3
+#define R_CSKY_PCIMM4BY2 4
+#define R_CSKY_PC32 5
+#define R_CSKY_PCRELJSR_IMM11BY2 6
+#define R_CSKY_GNU_VTINHERIT 7
+#define R_CSKY_GNU_VTENTRY8
+#define R_CSKY_RELATIVE 9
+#define R_CSKY_COPY 10
+#define R_CSKY_GLOB_DAT 11
+#define R_CSKY_JUMP_SLOT 12
+#define R_CSKY_ADDR_HI16 24
+#define R_CSKY_ADDR_LO16 25
+#define
[PATCH V9 12/21] csky: ELF and module probe
This patch adds ELF definition and module relocate codes.
Signed-off-by: Guo Ren
Cc: Arnd Bergmann
---
arch/csky/abiv1/inc/abi/elf.h | 26
arch/csky/abiv2/inc/abi/elf.h | 43
arch/csky/include/asm/elf.h | 85 +++
arch/csky/kernel/module.c | 92 +++
4 files changed, 246 insertions(+)
create mode 100644 arch/csky/abiv1/inc/abi/elf.h
create mode 100644 arch/csky/abiv2/inc/abi/elf.h
create mode 100644 arch/csky/include/asm/elf.h
create mode 100644 arch/csky/kernel/module.c
diff --git a/arch/csky/abiv1/inc/abi/elf.h b/arch/csky/abiv1/inc/abi/elf.h
new file mode 100644
index 000..3058cc0
--- /dev/null
+++ b/arch/csky/abiv1/inc/abi/elf.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __ABI_CSKY_ELF_H
+#define __ABI_CSKY_ELF_H
+
+#define ELF_CORE_COPY_REGS(pr_reg, regs) do { \
+ pr_reg[0] = regs->pc; \
+ pr_reg[1] = regs->regs[9]; \
+ pr_reg[2] = regs->usp; \
+ pr_reg[3] = regs->sr; \
+ pr_reg[4] = regs->a0; \
+ pr_reg[5] = regs->a1; \
+ pr_reg[6] = regs->a2; \
+ pr_reg[7] = regs->a3; \
+ pr_reg[8] = regs->regs[0]; \
+ pr_reg[9] = regs->regs[1]; \
+ pr_reg[10] = regs->regs[2]; \
+ pr_reg[11] = regs->regs[3]; \
+ pr_reg[12] = regs->regs[4]; \
+ pr_reg[13] = regs->regs[5]; \
+ pr_reg[14] = regs->regs[6]; \
+ pr_reg[15] = regs->regs[7]; \
+ pr_reg[16] = regs->regs[8]; \
+ pr_reg[17] = regs->lr; \
+} while (0);
+#endif /* __ABI_CSKY_ELF_H */
diff --git a/arch/csky/abiv2/inc/abi/elf.h b/arch/csky/abiv2/inc/abi/elf.h
new file mode 100644
index 000..290f49e
--- /dev/null
+++ b/arch/csky/abiv2/inc/abi/elf.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __ABI_CSKY_ELF_H
+#define __ABI_CSKY_ELF_H
+
+/* The member sort in array pr_reg[x] is defined by GDB. */
+#define ELF_CORE_COPY_REGS(pr_reg, regs) do { \
+ pr_reg[0] = regs->pc; \
+ pr_reg[1] = regs->a1; \
+ pr_reg[2] = regs->a0; \
+ pr_reg[3] = regs->sr; \
+ pr_reg[4] = regs->a2; \
+ pr_reg[5] = regs->a3; \
+ pr_reg[6] = regs->regs[0]; \
+ pr_reg[7] = regs->regs[1]; \
+ pr_reg[8] = regs->regs[2]; \
+ pr_reg[9] = regs->regs[3]; \
+ pr_reg[10] = regs->regs[4]; \
+ pr_reg[11] = regs->regs[5]; \
+ pr_reg[12] = regs->regs[6]; \
+ pr_reg[13] = regs->regs[7]; \
+ pr_reg[14] = regs->regs[8]; \
+ pr_reg[15] = regs->regs[9]; \
+ pr_reg[16] = regs->usp; \
+ pr_reg[17] = regs->lr; \
+ pr_reg[18] = regs->exregs[0]; \
+ pr_reg[19] = regs->exregs[1]; \
+ pr_reg[20] = regs->exregs[2]; \
+ pr_reg[21] = regs->exregs[3]; \
+ pr_reg[22] = regs->exregs[4]; \
+ pr_reg[23] = regs->exregs[5]; \
+ pr_reg[24] = regs->exregs[6]; \
+ pr_reg[25] = regs->exregs[7]; \
+ pr_reg[26] = regs->exregs[8]; \
+ pr_reg[27] = regs->exregs[9]; \
+ pr_reg[28] = regs->exregs[10]; \
+ pr_reg[29] = regs->exregs[11]; \
+ pr_reg[30] = regs->exregs[12]; \
+ pr_reg[31] = regs->exregs[13]; \
+ pr_reg[32] = regs->exregs[14]; \
+ pr_reg[33] = regs->tls; \
+} while (0);
+#endif /* __ABI_CSKY_ELF_H */
diff --git a/arch/csky/include/asm/elf.h b/arch/csky/include/asm/elf.h
new file mode 100644
index 000..773b133
--- /dev/null
+++ b/arch/csky/include/asm/elf.h
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+
+#ifndef __ASM_CSKY_ELF_H
+#define __ASM_CSKY_ELF_H
+
+#include
+#include
+
+#define ELF_ARCH 252
+
+/* CSKY Relocations */
+#define R_CSKY_NONE 0
+#define R_CSKY_32 1
+#define R_CSKY_PCIMM8BY4 2
+#define R_CSKY_PCIMM11BY2 3
+#define R_CSKY_PCIMM4BY2 4
+#define R_CSKY_PC32 5
+#define R_CSKY_PCRELJSR_IMM11BY2 6
+#define R_CSKY_GNU_VTINHERIT 7
+#define R_CSKY_GNU_VTENTRY8
+#define R_CSKY_RELATIVE 9
+#define R_CSKY_COPY 10
+#define R_CSKY_GLOB_DAT 11
+#define R_CSKY_JUMP_SLOT 12
+#define R_CSKY_ADDR_HI16 24
+#define R_CSKY_ADDR_LO16 25
+#define
