20eb719f99
As of a while ago, lld groups all undefined references to a single symbol in a single diagnostic. Back then, I made it so that we print up to 10 references to each undefined symbol. Having used this for a while, I never wished there were more references, but I sometimes found that this can print a lot of output. lld prints up to 10 diagnostics by default, and if each has 10 references (which I've seen in practice), and each undefined symbol produces 2 (possibly very long) lines of output, that's over 200 lines of error output. Let's try it with just 3 references for a while and see how that feels in practice. Differential Revision: https://reviews.llvm.org/D77017
56 lines
1.8 KiB
ArmAsm
56 lines
1.8 KiB
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/undef.s -o %t2.o
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# RUN: not ld.lld %t.o %t2.o -o /dev/null 2>&1 | FileCheck %s
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# CHECK: error: undefined symbol: zed2
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# CHECK-NEXT: >>> referenced by undef-multi.s
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# CHECK-NEXT: >>> {{.*}}:(.text+0x1)
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# CHECK-NEXT: >>> referenced by undef-multi.s
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# CHECK-NEXT: >>> {{.*}}:(.text+0x6)
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# CHECK-NEXT: >>> referenced by undef-multi.s
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# CHECK-NEXT: >>> {{.*}}:(.text+0xB)
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# CHECK-NEXT: >>> referenced 2 more times
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# All references to a single undefined symbol count as a single error -- but
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# at most 10 references are printed.
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# RUN: echo ".globl _bar" > %t.moreref.s
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# RUN: echo "_bar:" >> %t.moreref.s
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# RUN: echo " call zed2" >> %t.moreref.s
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# RUN: echo " call zed2" >> %t.moreref.s
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# RUN: echo " call zed2" >> %t.moreref.s
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# RUN: echo " call zed2" >> %t.moreref.s
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# RUN: echo " call zed2" >> %t.moreref.s
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# RUN: echo " call zed2" >> %t.moreref.s
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# RUN: echo " call zed2" >> %t.moreref.s
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# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %t.moreref.s -o %t3.o
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# RUN: not ld.lld %t.o %t2.o %t3.o -o /dev/null -error-limit=2 2>&1 | \
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# RUN: FileCheck --check-prefix=LIMIT %s
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# LIMIT: error: undefined symbol: zed2
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# LIMIT-NEXT: >>> referenced by undef-multi.s
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# LIMIT-NEXT: >>> {{.*}}:(.text+0x1)
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# LIMIT-NEXT: >>> referenced by undef-multi.s
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# LIMIT-NEXT: >>> {{.*}}:(.text+0x6)
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# LIMIT-NEXT: >>> referenced by undef-multi.s
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# LIMIT-NEXT: >>> {{.*}}:(.text+0xB)
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# LIMIT-NEXT: >>> referenced 9 more times
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.file "undef-multi.s"
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.globl _start
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_start:
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call zed2
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.globl _f
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_f:
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call zed2
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.globl _g
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_g:
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call zed2
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.globl _h
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_h:
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call zed2
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