maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
340,904 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

11 Commits

Author SHA1 Message Date
Fangrui Song f66b767abe [ELF][AArch64] Allow PT_LOAD to have overlapping p_offset ranges 
Ported the D64906 technique to AArch64. It deletes 3 alignments at
PT_LOAD boundaries for the default case: the size of an aarch64 binary
decreases by at most 192kb.

If `sh_addralign(.tdata) < sh_addralign(.tbss)`,
we can potentially make `p_vaddr(PT_TLS)%p_align(PT_TLS) != 0`.

ld.so that are known to have problems if p_vaddr%p_align!=0:

* musl<=1.1.22
* FreeBSD 13.0-CURRENT (and before) rtld-elf arm64

New test aarch64-tls-vaddr-align.s checks that our workaround makes p_vaddr%p_align = 0.

Reviewed By: ruiu

Differential Revision: https://reviews.llvm.org/D64930

llvm-svn: 369344
 2019-08-20 08:34:56 +00:00
Rafael Espindola 0727553405 R_AARCH64_PREL64 is relative. 
llvm-svn: 264560
 2016-03-28 01:31:11 +00:00
Adhemerval Zanella 3db3f6d83a Simplify AArch64 isRelRelative 
This patch simplifies the isRelRelative for AArch64 and add the missing
ones for bootstrap and test-suite.  It also adds more testing for
shared object creation.

llvm-svn: 264322
 2016-03-24 19:12:14 +00:00
Rafael Espindola 88a9d7608f Mark R_AARCH64_CONDBR19 as relative. 
llvm-svn: 264262
 2016-03-24 12:16:46 +00:00
Rafael Espindola a598a3a08a Mark R_AARCH64_CALL26 as relative. 
llvm-svn: 261783
 2016-02-24 22:07:12 +00:00
Rafael Espindola 47ed542328 Mark R_AARCH64_ADD_ABS_LO12_NC as relative. 
llvm-svn: 261772
 2016-02-24 21:48:06 +00:00
Rafael Espindola 57ca270b7a Mark R_AARCH64_LDST64_ABS_LO12_NC as relative. 
llvm-svn: 261769
 2016-02-24 20:52:58 +00:00
Rafael Espindola 40afcb547e Mark R_AARCH64_LDST32_ABS_LO12_NC as relative. 
llvm-svn: 261766
 2016-02-24 20:18:06 +00:00
Rafael Espindola 9a3bb54b2e R_AARCH64_LDST8_ABS_LO12_NC is effectivelly relative. 
It only sets the low bits and given the page alignment of PT_LOAD the
dynamic linker can only change the high ones.

llvm-svn: 261765
 2016-02-24 19:58:50 +00:00
Rafael Espindola c36e97ae39 R_AARCH64_ADR_PREL_PG_HI21 is relative. 
llvm-svn: 261764
 2016-02-24 19:36:30 +00:00
Rafael Espindola a4e35f7092 Mark R_AARCH64_PREL32 as relative. 
llvm-svn: 261747
 2016-02-24 16:15:13 +00:00