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).
100 lines
2.6 KiB
ArmAsm
100 lines
2.6 KiB
ArmAsm
# REQUIRES: system-linux
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## Check that BOLT correctly updates the Linux kernel static keys jump table.
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# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s -o %t.o
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# RUN: link_fdata %s %t.o %t.fdata
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# RUN: llvm-strip --strip-unneeded %t.o
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# RUN: %clang %cflags -nostdlib %t.o -o %t.exe \
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# RUN: -Wl,--image-base=0xffffffff80000000,--no-dynamic-linker,--no-eh-frame-hdr
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## Verify static keys jump bindings to instructions.
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# RUN: llvm-bolt %t.exe --print-normalized -o %t.out --keep-nops=0 \
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# RUN: --bolt-info=0 2>&1 | FileCheck %s
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## Verify that profile is matched correctly.
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# RUN: llvm-bolt %t.exe --print-normalized -o %t.out --keep-nops=0 \
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# RUN: --bolt-info=0 --data %t.fdata 2>&1 \
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# RUN: | FileCheck --check-prefix=CHECK-FDATA %s
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## Verify the bindings again on the rewritten binary with nops removed.
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# RUN: llvm-bolt %t.out -o %t.out.1 --print-normalized 2>&1 | FileCheck %s
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# CHECK: BOLT-INFO: Linux kernel binary detected
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# CHECK: BOLT-INFO: parsed 2 static keys jump entries
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.text
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.globl _start
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.type _start, %function
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_start:
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# CHECK: Binary Function "_start"
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nop
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.L0:
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jmp L1
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# CHECK: jit
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# CHECK-SAME: # ID: 1 {{.*}} # Likely: 1 # InitValue: 0
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nop
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L1:
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.nops 5
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# CHECK: jit
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# CHECK-SAME: # ID: 2 {{.*}} # Likely: 0 # InitValue: 0
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jmp .L0
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## Check that a branch profile associated with a NOP is handled properly when
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## dynamic branch is created.
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# FDATA: 1 _start #L1# 1 _start #L2# 3 42
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# CHECK-FDATA: jit {{.*}} # ID: 2
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# CHECK-FDATA-NEXT: jmp
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# CHECK-FDATA-NEXT: Successors: {{.*}} (mispreds: 3, count: 42)
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L2:
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nop
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.size _start, .-_start
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.globl foo
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.type foo, %function
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foo:
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ret
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.size foo, .-foo
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## Static keys jump table.
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.rodata
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.globl __start___jump_table
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.type __start___jump_table, %object
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__start___jump_table:
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.long .L0 - . # Jump address
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.long L1 - . # Target address
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.quad fake_static_key + 1 - . # Key address; LSB = 1 : likely
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.long L1 - . # Jump address
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.long L2 - . # Target address
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.quad fake_static_key -. # Key address; LSB = 0 : unlikely
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.globl __stop___jump_table
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.type __stop___jump_table, %object
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__stop___jump_table:
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## Staic keys (we just use the label ignoring the format of the keys).
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.data
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.align 8
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fake_static_key:
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.quad 0
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## Linux kernel version
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.rodata
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.align 16
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.globl linux_banner
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.type linux_banner, @object
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linux_banner:
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.string "Linux version 6.6.61\n"
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.size linux_banner, . - linux_banner
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## Fake Linux Kernel sections.
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.section __ksymtab,"a",@progbits
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.section __ksymtab_gpl,"a",@progbits
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