android/android_kernel_asus_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ANDROID: vmlinux.lds.h: merge compound literal sections

Browse Source 
After LLVM rG9e33c096476a ("[ELF] Keep orphan section names
(.rodata.foo .text.foo) unchanged if !hasSectionsCommand"), LLD splits
compound literals to separate sections with -fdata-sections, which
it always enables with LTO. Merge these sections to allow LLVM to be
upgraded.

Bug: 174047799
Change-Id: I858c5fcc48283d5528c1d3e2b2d7a3c72f9e03d6
Link: https://github.com/ClangBuiltLinux/linux/issues/958
Suggested-by: Danny Lin <danny@kdrag0n.dev>
Suggested-by: Fangrui Song <maskray@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
This commit is contained in:
Sami Tolvanen 2020-11-25 08:44:09 -08:00
parent 16d99ebeaf
commit 559c23e691
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/asm-generic/vmlinux.lds.h
View File

@ -72,10 +72,10 @@
#if defined(CONFIG_LD_DEAD_CODE_DATA_ELIMINATION) || defined(CONFIG_LTO_CLANG)
#define TEXT_MAIN .text .text.[0-9a-zA-Z_]*
#define TEXT_CFI_MAIN .text.[0-9a-zA-Z_]*.cfi
#define DATA_MAIN .data .data.[0-9a-zA-Z_]* .data..LPBX*
#define DATA_MAIN .data .data.[0-9a-zA-Z_]* .data..L* .data..compoundliteral*
#define SDATA_MAIN .sdata .sdata.[0-9a-zA-Z_]*
#define RODATA_MAIN .rodata .rodata.[0-9a-zA-Z_]*
#define BSS_MAIN .bss .bss.[0-9a-zA-Z_]*
#define RODATA_MAIN .rodata .rodata.[0-9a-zA-Z_]* .rodata..L*
#define BSS_MAIN .bss .bss.[0-9a-zA-Z_]* .bss..compoundliteral*
#define SBSS_MAIN .sbss .sbss.[0-9a-zA-Z_]*
#else
#define TEXT_MAIN .text