d30a78b3fe
Currently, LLD supports ASSERT as a separate command. We support two forms now. Assign expression-form: . = ASSERT(0x100) (old GNU ld required it and some scripts in the wild are still using something like . = ASSERT((_end - _text <= (512 * 1024 * 1024)), "kernel image bigger than KERNEL_IMAGE_SIZE"); Nowadays above is not a mandatory form and command-like form is commonly used: ASSERT(<expr>, "text); The return value of the ASSERT is Dot. That was implemented in D30171. It looks like (2) is just a short version of (1) then. GNU ld does *not* list ASSERT as a SECTIONS command: https://sourceware.org/binutils/docs/ld/SECTIONS.html#SECTIONS Given above we probably can change ASSERT to be an assignment to Dot. That makes the rest of the code much simpler. Patch do that. Differential revision: https://reviews.llvm.org/D45434 llvm-svn: 330814
41 lines
1.5 KiB
ArmAsm
41 lines
1.5 KiB
ArmAsm
# REQUIRES: x86
|
|
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
|
|
|
|
# RUN: echo "SECTIONS { ASSERT(1, fail) }" > %t1.script
|
|
# RUN: ld.lld -shared -o %t1 --script %t1.script %t1.o
|
|
# RUN: llvm-readobj %t1 > /dev/null
|
|
|
|
# RUN: echo "SECTIONS { ASSERT(0, fail) }" > %t3.script
|
|
# RUN: not ld.lld -shared -o %t3 --script %t3.script %t1.o > %t.log 2>&1
|
|
# RUN: FileCheck %s -check-prefix=FAIL < %t.log
|
|
# FAIL: fail
|
|
|
|
# RUN: echo "SECTIONS { . = ASSERT(0x1000, fail); }" > %t4.script
|
|
# RUN: ld.lld -shared -o %t4 --script %t4.script %t1.o
|
|
# RUN: llvm-readobj %t4 > /dev/null
|
|
|
|
# RUN: echo "SECTIONS { .foo : { *(.foo) } }" > %t5.script
|
|
# RUN: echo "ASSERT(SIZEOF(.foo) == 8, fail);" >> %t5.script
|
|
# RUN: ld.lld -shared -o %t5 --script %t5.script %t1.o
|
|
# RUN: llvm-readobj %t5 > /dev/null
|
|
|
|
## Even without SECTIONS block we still use section names
|
|
## in expressions
|
|
# RUN: echo "ASSERT(SIZEOF(.foo) == 8, fail);" > %t5.script
|
|
# RUN: ld.lld -shared -o %t5 --script %t5.script %t1.o
|
|
# RUN: llvm-readobj %t5 > /dev/null
|
|
|
|
## Test assertions inside of output section decriptions.
|
|
# RUN: echo "SECTIONS { .foo : { *(.foo) ASSERT(SIZEOF(.foo) == 8, \"true\"); } }" > %t6.script
|
|
# RUN: ld.lld -shared -o %t6 --script %t6.script %t1.o
|
|
# RUN: llvm-readobj %t6 > /dev/null
|
|
|
|
## Unlike the GNU ld, we accept the ASSERT without the semicolon.
|
|
## It is consistent with how ASSERT can be written outside of the
|
|
## output section declaration.
|
|
# RUN: echo "SECTIONS { .foo : { ASSERT(1, \"true\") } }" > %t7.script
|
|
# RUN: ld.lld -shared -o %t7 --script %t7.script %t1.o
|
|
|
|
.section .foo, "a"
|
|
.quad 0
|