Commit 06a1be16 authored by David S. Miller's avatar David S. Miller

[SPARC]: Handle UNWIND_INFO properly.

For sparc32 we need R_SPARC_UA32 relocation support, for
sparc64 we need the handle R_SPARC_DISP32 relocations.

Based upon reports and initial patch by Martin Habets.
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1f8aa2f6
......@@ -113,6 +113,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
switch (ELF32_R_TYPE(rel[i].r_info)) {
case R_SPARC_32:
case R_SPARC_UA32:
location[0] = v >> 24;
location[1] = v >> 16;
location[2] = v >> 8;
......
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.17-rc3
# Mon May 8 15:12:53 2006
# Fri May 12 12:43:49 2006
#
CONFIG_SPARC=y
CONFIG_SPARC64=y
......@@ -1309,6 +1309,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
CONFIG_DEBUG_FS=y
# CONFIG_DEBUG_VM is not set
# CONFIG_UNWIND_INFO is not set
CONFIG_FORCED_INLINING=y
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_DEBUG_STACK_USAGE is not set
......
......@@ -143,6 +143,11 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
location[3] = v >> 0;
break;
case R_SPARC_DISP32:
v -= (Elf64_Addr) location;
*loc32 = v;
break;
case R_SPARC_WDISP30:
v -= (Elf64_Addr) location;
*loc32 = (*loc32 & ~0x3fffffff) |
......
......@@ -189,7 +189,7 @@ config FRAME_POINTER
config UNWIND_INFO
bool "Compile the kernel with frame unwind information"
depends on !IA64
depends on !MODULES || !(MIPS || PARISC || PPC || SUPERH || SPARC64 || V850)
depends on !MODULES || !(MIPS || PARISC || PPC || SUPERH || V850)
help
If you say Y here the resulting kernel image will be slightly larger
but not slower, and it will give very useful debugging information.
......
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