vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
81 lines
2.5 KiB
ArmAsm
81 lines
2.5 KiB
ArmAsm
# REQUIRES: x86
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# RUN: rm -rf %t; split-file %s %t
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## Test that we correctly handle the sdata4 DWARF pointer encoding. llvm-mc's
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## CFI directives always generate EH frames using the absptr (i.e. system
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## pointer size) encoding, but it is possible to hand-roll your own EH frames
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## that use the sdata4 encoding. For instance, libffi does this.
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos10.15 %t/sdata4.s -o %t/sdata4.o
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# RUN: %lld -lSystem %t/sdata4.o -o %t/sdata4
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# RUN: llvm-objdump --macho --syms --dwarf=frames %t/sdata4 | FileCheck %s
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# CHECK: SYMBOL TABLE:
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# CHECK: [[#%.16x,MAIN:]] g F __TEXT,__text _main
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# CHECK: .eh_frame contents:
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# CHECK: 00000000 00000010 00000000 CIE
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# CHECK: Format: DWARF32
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# CHECK: Version: 1
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# CHECK: Augmentation: "zR"
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# CHECK: Code alignment factor: 1
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# CHECK: Data alignment factor: 1
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# CHECK: Return address column: 1
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# CHECK: Augmentation data: 1B
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# CHECK: DW_CFA_def_cfa: reg7 +8
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# CHECK: CFA=reg7+8
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# CHECK: 00000014 00000010 00000018 FDE cie=00000000 pc=[[#%x,MAIN]]...[[#%x,MAIN+1]]
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# CHECK: Format: DWARF32
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# CHECK: DW_CFA_GNU_args_size: +16
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# CHECK: DW_CFA_nop:
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# CHECK: 0x[[#%x,MAIN]]: CFA=reg7+8
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#--- sdata4.s
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.globl _main
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_main:
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retq
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LmainEnd:
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.balign 4
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.section __TEXT,__eh_frame
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# Although we don't reference this EhFrame symbol directly, we must have at
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# least one non-local symbol in this section, otherwise llvm-mc generates bogus
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# subtractor relocations.
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EhFrame:
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LCieHdr:
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.long LCieEnd - LCieStart
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LCieStart:
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.long 0 # CIE ID
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.byte 1 # CIE version
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.ascii "zR\0"
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.byte 1 # Code alignment
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.byte 1 # Data alignment
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.byte 1 # RA column
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.byte 1 # Augmentation size
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.byte 0x1b # FDE pointer encoding (pcrel | sdata4)
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.byte 0xc, 7, 8 # DW_CFA_def_cfa reg7 +8
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.balign 4
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LCieEnd:
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LFdeHdr:
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.long LFdeEnd - LFdeStart
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LFdeStart:
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.long LFdeStart - LCieHdr
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# The next two fields are longs instead of quads because of the sdata4
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# encoding.
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.long _main - . # Function address
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.long LmainEnd - _main # Function length
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.byte 0
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## Insert DW_CFA_GNU_args_size to prevent ld64 from creating a compact unwind
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## entry to replace this FDE. Makes it easier for us to cross-check behavior
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## across the two linkers (LLD never bothers trying to synthesize compact
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## unwind if it is not already present).
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.byte 0x2e, 0x10 # DW_CFA_GNU_args_size
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.balign 4
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LFdeEnd:
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.long 0 # terminator
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.subsections_via_symbols
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