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llvm-project/lld/test/ELF/mips-64-got.s

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[ELF] Move `# REQUIRES:` line to the top llvm-svn: 335625
2018-06-27 00:58:19 +08:00
# REQUIRES: mips
[ELF][MIPS] R_MIPS_GOT_DISP, R_MIPS_GOT_PAGE, R_MIPS_GOT_OFST relocations support These relocations introduced by MIPS N64 ABI. R_MIPS_GOT_DISP references GOT entry with full symbol's address, R_MIPS_GOT_PAGE creates GOT entry with address of memory page which includes symbol's address, R_MIPS_GOT_OFST used together with R_MIPS_GOT_PAGE. This relocation calculates offset from beginning of memory page to the symbol address. llvm-svn: 268525
2016-05-05 01:47:11 +08:00
# Check MIPS N64 ABI GOT relocations
# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux \
# RUN: %p/Inputs/mips-pic.s -o %t.so.o
# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux %s -o %t.exe.o
# RUN: ld.lld %t.so.o -shared -o %t.so
# RUN: ld.lld %t.exe.o %t.so -o %t.exe
# RUN: llvm-objdump -d -t %t.exe | FileCheck %s
[mips] Use GNU-style output to make tests smaller. NFC llvm-svn: 361394
2019-05-22 23:03:52 +08:00
# RUN: llvm-readelf -r --mips-plt-got %t.exe | FileCheck -check-prefix=GOT %s
[ELF][MIPS] R_MIPS_GOT_DISP, R_MIPS_GOT_PAGE, R_MIPS_GOT_OFST relocations support These relocations introduced by MIPS N64 ABI. R_MIPS_GOT_DISP references GOT entry with full symbol's address, R_MIPS_GOT_PAGE creates GOT entry with address of memory page which includes symbol's address, R_MIPS_GOT_OFST used together with R_MIPS_GOT_PAGE. This relocation calculates offset from beginning of memory page to the symbol address. llvm-svn: 268525
2016-05-05 01:47:11 +08:00
# CHECK: __start:
# CHECK-NEXT: 20000: df 82 80 20 ld $2, -32736($gp)
[ELF][MIPS] Support GOT entries for non-preemptible symbols with different addends There are two motivations for this patch. The first one is a preparation for support MIPS TLS relocations. It might sound like a joke but for GOT entries related to TLS relocations MIPS ABI uses almost regular approach with creation of dynamic relocations for each GOT enty etc. But we need to separate these 'regular' TLS related entries from MIPS specific local and global parts of GOT. ABI declare simple solution - all TLS related entries allocated at the end of GOT after local/global parts. The second motivation it to support GOT relocations for non-preemptible symbols with addends. If we have more than one GOT relocations against symbol S with different addends we need to create GOT entries for each unique Symbol/Addend pairs. So we store all MIPS GOT entries in separate containers. For non-preemptible symbols we have to maintain two data structures. The first one is MipsLocal vector. Each entry corresponds to the GOT entry from the 'local' part of the GOT contains the symbol's address plus addend. The second one is MipsLocalMap. It is a map from Symbol/Addend pair to the GOT index. Differential Revision: http://reviews.llvm.org/D21297 llvm-svn: 273127
2016-06-20 05:39:37 +08:00
# CHECK-NEXT: 20004: 64 42 00 18 daddiu $2, $2, 24
[ELF][MIPS] Fix calculation of GOT "page address" entries number If output section which referenced by R_MIPS_GOT_PAGE or R_MIPS_GOT16 relocations is small (less that 0x10000 bytes) and occupies two adjacent 0xffff-bytes pages, current formula gives incorrect number of required "page" GOT entries. The problem is that in time of calculation we do not know the section address and so we cannot calculate number of 0xffff-bytes pages exactly. This patch fix the formula. Now it gives a correct number of pages in the worst case when "small" section intersects 0xffff-bytes page boundary. From the other side, sometimes it adds one more redundant GOT entry for each output section. But usually number of output sections referenced by GOT relocations is small. llvm-svn: 288127
2016-11-29 18:23:46 +08:00
# CHECK-NEXT: 20008: 24 42 80 40 addiu $2, $2, -32704
# CHECK-NEXT: 2000c: 24 42 80 30 addiu $2, $2, -32720
# CHECK-NEXT: 20010: 24 42 80 38 addiu $2, $2, -32712
[ELF][MIPS] R_MIPS_GOT_DISP, R_MIPS_GOT_PAGE, R_MIPS_GOT_OFST relocations support These relocations introduced by MIPS N64 ABI. R_MIPS_GOT_DISP references GOT entry with full symbol's address, R_MIPS_GOT_PAGE creates GOT entry with address of memory page which includes symbol's address, R_MIPS_GOT_OFST used together with R_MIPS_GOT_PAGE. This relocation calculates offset from beginning of memory page to the symbol address. llvm-svn: 268525
2016-05-05 01:47:11 +08:00
[ELF][MIPS] Support GOT entries for non-preemptible symbols with different addends There are two motivations for this patch. The first one is a preparation for support MIPS TLS relocations. It might sound like a joke but for GOT entries related to TLS relocations MIPS ABI uses almost regular approach with creation of dynamic relocations for each GOT enty etc. But we need to separate these 'regular' TLS related entries from MIPS specific local and global parts of GOT. ABI declare simple solution - all TLS related entries allocated at the end of GOT after local/global parts. The second motivation it to support GOT relocations for non-preemptible symbols with addends. If we have more than one GOT relocations against symbol S with different addends we need to create GOT entries for each unique Symbol/Addend pairs. So we store all MIPS GOT entries in separate containers. For non-preemptible symbols we have to maintain two data structures. The first one is MipsLocal vector. Each entry corresponds to the GOT entry from the 'local' part of the GOT contains the symbol's address plus addend. The second one is MipsLocalMap. It is a map from Symbol/Addend pair to the GOT index. Differential Revision: http://reviews.llvm.org/D21297 llvm-svn: 273127
2016-06-20 05:39:37 +08:00
# CHECK: 0000000000020018 .text 00000000 foo
[ELF][MIPS] R_MIPS_GOT_DISP, R_MIPS_GOT_PAGE, R_MIPS_GOT_OFST relocations support These relocations introduced by MIPS N64 ABI. R_MIPS_GOT_DISP references GOT entry with full symbol's address, R_MIPS_GOT_PAGE creates GOT entry with address of memory page which includes symbol's address, R_MIPS_GOT_OFST used together with R_MIPS_GOT_PAGE. This relocation calculates offset from beginning of memory page to the symbol address. llvm-svn: 268525
2016-05-05 01:47:11 +08:00
# CHECK: 0000000000020000 .text 00000000 __start
[ELF][MIPS] Support GOT entries for non-preemptible symbols with different addends There are two motivations for this patch. The first one is a preparation for support MIPS TLS relocations. It might sound like a joke but for GOT entries related to TLS relocations MIPS ABI uses almost regular approach with creation of dynamic relocations for each GOT enty etc. But we need to separate these 'regular' TLS related entries from MIPS specific local and global parts of GOT. ABI declare simple solution - all TLS related entries allocated at the end of GOT after local/global parts. The second motivation it to support GOT relocations for non-preemptible symbols with addends. If we have more than one GOT relocations against symbol S with different addends we need to create GOT entries for each unique Symbol/Addend pairs. So we store all MIPS GOT entries in separate containers. For non-preemptible symbols we have to maintain two data structures. The first one is MipsLocal vector. Each entry corresponds to the GOT entry from the 'local' part of the GOT contains the symbol's address plus addend. The second one is MipsLocalMap. It is a map from Symbol/Addend pair to the GOT index. Differential Revision: http://reviews.llvm.org/D21297 llvm-svn: 273127
2016-06-20 05:39:37 +08:00
# CHECK: 0000000000020014 .text 00000000 bar
[ELF][MIPS] R_MIPS_GOT_DISP, R_MIPS_GOT_PAGE, R_MIPS_GOT_OFST relocations support These relocations introduced by MIPS N64 ABI. R_MIPS_GOT_DISP references GOT entry with full symbol's address, R_MIPS_GOT_PAGE creates GOT entry with address of memory page which includes symbol's address, R_MIPS_GOT_OFST used together with R_MIPS_GOT_PAGE. This relocation calculates offset from beginning of memory page to the symbol address. llvm-svn: 268525
2016-05-05 01:47:11 +08:00
[mips] Use GNU-style output to make tests smaller. NFC llvm-svn: 361394
2019-05-22 23:03:52 +08:00
# GOT: There are no relocations in this file.
# GOT-NEXT: Primary GOT:
# GOT-NEXT: Canonical gp value: 0000000000038000
# GOT-EMPTY:
# GOT-NEXT: Reserved entries:
# GOT-NEXT: Address Access Initial Purpose
# GOT-NEXT: 0000000000030010 -32752(gp) 0000000000000000 Lazy resolver
# GOT-NEXT: 0000000000030018 -32744(gp) 8000000000000000 Module pointer (GNU extension)
# GOT-EMPTY:
# GOT-NEXT: Local entries:
# GOT-NEXT: Address Access Initial
# GOT-NEXT: 0000000000030020 -32736(gp) 0000000000020000
# GOT-NEXT: 0000000000030028 -32728(gp) 0000000000030000
# GOT-NEXT: 0000000000030030 -32720(gp) 0000000000020014
# GOT-NEXT: 0000000000030038 -32712(gp) 0000000000020018
# GOT-EMPTY:
# GOT-NEXT: Global entries:
# GOT-NEXT: Address Access Initial Sym.Val. Type Ndx Name
# GOT-NEXT: 0000000000030040 -32704(gp) 0000000000000000 0000000000000000 FUNC UND foo1a
[ELF][MIPS] R_MIPS_GOT_DISP, R_MIPS_GOT_PAGE, R_MIPS_GOT_OFST relocations support These relocations introduced by MIPS N64 ABI. R_MIPS_GOT_DISP references GOT entry with full symbol's address, R_MIPS_GOT_PAGE creates GOT entry with address of memory page which includes symbol's address, R_MIPS_GOT_OFST used together with R_MIPS_GOT_PAGE. This relocation calculates offset from beginning of memory page to the symbol address. llvm-svn: 268525
2016-05-05 01:47:11 +08:00
.text
.global __start, bar
__start:
ld $v0,%got_page(foo)($gp) # R_MIPS_GOT_PAGE
daddiu $v0,$v0,%got_ofst(foo) # R_MIPS_GOT_OFST
addiu $v0,$v0,%got_disp(foo1a) # R_MIPS_GOT_DISP
addiu $v0,$v0,%got_disp(bar) # R_MIPS_GOT_DISP
[ELF][MIPS] Support GOT entries for non-preemptible symbols with different addends There are two motivations for this patch. The first one is a preparation for support MIPS TLS relocations. It might sound like a joke but for GOT entries related to TLS relocations MIPS ABI uses almost regular approach with creation of dynamic relocations for each GOT enty etc. But we need to separate these 'regular' TLS related entries from MIPS specific local and global parts of GOT. ABI declare simple solution - all TLS related entries allocated at the end of GOT after local/global parts. The second motivation it to support GOT relocations for non-preemptible symbols with addends. If we have more than one GOT relocations against symbol S with different addends we need to create GOT entries for each unique Symbol/Addend pairs. So we store all MIPS GOT entries in separate containers. For non-preemptible symbols we have to maintain two data structures. The first one is MipsLocal vector. Each entry corresponds to the GOT entry from the 'local' part of the GOT contains the symbol's address plus addend. The second one is MipsLocalMap. It is a map from Symbol/Addend pair to the GOT index. Differential Revision: http://reviews.llvm.org/D21297 llvm-svn: 273127
2016-06-20 05:39:37 +08:00
addiu $v0,$v0,%got_disp(foo) # R_MIPS_GOT_DISP
[ELF][MIPS] R_MIPS_GOT_DISP, R_MIPS_GOT_PAGE, R_MIPS_GOT_OFST relocations support These relocations introduced by MIPS N64 ABI. R_MIPS_GOT_DISP references GOT entry with full symbol's address, R_MIPS_GOT_PAGE creates GOT entry with address of memory page which includes symbol's address, R_MIPS_GOT_OFST used together with R_MIPS_GOT_PAGE. This relocation calculates offset from beginning of memory page to the symbol address. llvm-svn: 268525
2016-05-05 01:47:11 +08:00
bar:
nop
foo:
nop