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binutils-gdb/ld/testsuite/ld-aarch64/gc-relocs-257.s

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2013-04-10 Venkataramanan Kumar <venkataramanan.kumar@linaro.org> * ld-aarch64/gc-plt1.s: New file. * ld-aarch64/gc-plt2.s: Likewise. * ld-aarch64/gc-plt-hidden.s: Likewise. * ld-aarch64/gc-plt-main.s: Likewise. * ld-aarch64/gc-relocs-257.s: Likewise. * ld-aarch64/gc-plt-relocs.d: Update expected objdump. * ld-aarch64/gc-relocs-257.d: Likewise. * ld-aarch64/gc-relocs-257-dyn.d: Likewise. * ld-aarch64/aarch64-elf.exp: Add test.
2013-04-10 20:00:14 +08:00
.text
[BFD][AARCH64]Disallow R_AARCH64_ABS32(LP64) & R_AARCH64_ABS16 in const section of shared object. R_AARCH64_ABS64, R_AARCH64_ABS32 and R_AARCH64_ABS16 are data relocations supported in AArch64 elf ABI. R_AARCH64_ABS64 under LP64 is allowed in shared object and a dynamic relocation entry will be generated. This allows the dynamic linker to do further symbol resolution. R_AARCH64_ABS32 likewise is allowed in shared object, however under ILP32 abi. The original behavior for R_AARCH64_ABS32 under LP64 is that, it's allowed in shared object and silently resolved at static linking time. No dynamic relocation entry is generate for it. R_AARCH64_ABS16 is allowed in shared object under both L64 and ILP32. It's resolved at static linking time as well. Under LP64, the address should be 64-bit. R_AARCH64_ABS32 relocation indicates an address that is only sized 32 bits which is meaningless in LP64 shared object. It's useful to error out. I have checked glibc dynamic linker code, R_AARCH64_ABS16 is not supported at all. So R_AARCH64_ABS16 should be reject in shared object completely. In this patch, R_AARCH64_ABS32 is rejected under LP64 in constant section of shared object. R_AARCH64_ABS16 is rejected in constant section of shared object in both ABI. This will sometimes provide useful information for buggy code.
2017-12-13 20:11:25 +08:00
and x0, x0, x0
and x0, x0, #0x1
2013-04-10 Venkataramanan Kumar <venkataramanan.kumar@linaro.org> * ld-aarch64/gc-plt1.s: New file. * ld-aarch64/gc-plt2.s: Likewise. * ld-aarch64/gc-plt-hidden.s: Likewise. * ld-aarch64/gc-plt-main.s: Likewise. * ld-aarch64/gc-relocs-257.s: Likewise. * ld-aarch64/gc-plt-relocs.d: Update expected objdump. * ld-aarch64/gc-relocs-257.d: Likewise. * ld-aarch64/gc-relocs-257-dyn.d: Likewise. * ld-aarch64/aarch64-elf.exp: Add test.
2013-04-10 20:00:14 +08:00
.xword tempy2
[BFD][AARCH64]Disallow R_AARCH64_ABS32(LP64) & R_AARCH64_ABS16 in const section of shared object. R_AARCH64_ABS64, R_AARCH64_ABS32 and R_AARCH64_ABS16 are data relocations supported in AArch64 elf ABI. R_AARCH64_ABS64 under LP64 is allowed in shared object and a dynamic relocation entry will be generated. This allows the dynamic linker to do further symbol resolution. R_AARCH64_ABS32 likewise is allowed in shared object, however under ILP32 abi. The original behavior for R_AARCH64_ABS32 under LP64 is that, it's allowed in shared object and silently resolved at static linking time. No dynamic relocation entry is generate for it. R_AARCH64_ABS16 is allowed in shared object under both L64 and ILP32. It's resolved at static linking time as well. Under LP64, the address should be 64-bit. R_AARCH64_ABS32 relocation indicates an address that is only sized 32 bits which is meaningless in LP64 shared object. It's useful to error out. I have checked glibc dynamic linker code, R_AARCH64_ABS16 is not supported at all. So R_AARCH64_ABS16 should be reject in shared object completely. In this patch, R_AARCH64_ABS32 is rejected under LP64 in constant section of shared object. R_AARCH64_ABS16 is rejected in constant section of shared object in both ABI. This will sometimes provide useful information for buggy code.
2017-12-13 20:11:25 +08:00
.data
.word tempy
2013-04-10 Venkataramanan Kumar <venkataramanan.kumar@linaro.org> * ld-aarch64/gc-plt1.s: New file. * ld-aarch64/gc-plt2.s: Likewise. * ld-aarch64/gc-plt-hidden.s: Likewise. * ld-aarch64/gc-plt-main.s: Likewise. * ld-aarch64/gc-relocs-257.s: Likewise. * ld-aarch64/gc-plt-relocs.d: Update expected objdump. * ld-aarch64/gc-relocs-257.d: Likewise. * ld-aarch64/gc-relocs-257-dyn.d: Likewise. * ld-aarch64/aarch64-elf.exp: Add test.
2013-04-10 20:00:14 +08:00
.hword tempy3
.hword tempy3+8
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