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ARC: module: support R_ARC_32_PCREL relocation

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Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta 2016-09-12 16:50:50 -07:00
parent e0d5321fac
commit 94f4fb0841
2 changed files with 5 additions and 4 deletions
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3
arch/arc/include/asm/elf.h
View File

@ -23,8 +23,7 @@
/* ARC Relocations (kernel Modules only) */
#define R_ARC_32 0x4
#define R_ARC_32_ME 0x1B
#define R_ARC_S25H_PCREL 0x10
#define R_ARC_S25W_PCREL 0x11
#define R_ARC_32_PCREL 0x31
/*to set parameters in the core dumps */
#define ELF_ARCH EM_ARCOMPACT

6
arch/arc/kernel/module.c
View File

@ -106,10 +106,12 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
*/
relo_type = ELF32_R_TYPE(rel_entry[i].r_info);
if (likely(R_ARC_32_ME == relo_type))
if (likely(R_ARC_32_ME == relo_type)) /* ME ( S + A ) */
arc_write_me((unsigned short *)location, relocation);
else if (R_ARC_32 == relo_type)
else if (R_ARC_32 == relo_type) /* ( S + A ) */
*((Elf32_Addr *) location) = relocation;
else if (R_ARC_32_PCREL == relo_type) /* ( S + A ) - PDATA ) */
*((Elf32_Addr *) location) = relocation - location;
else
goto relo_err;