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53b1283520
Make sure to set the bottom bit of the symbol even when the type attribute of a label is set after the label. GNU as sets the thumb state according to the thumb state of the label. If a .type directive is placed after the label, set the symbol's thumb state according to the thumb state of the .type directive. This matches GNU as in most cases. From: Stefan Agner <stefan@agner.ch> This fixes: https://bugs.llvm.org/show_bug.cgi?id=44860 https://github.com/ClangBuiltLinux/linux/issues/866 Reviewed By: MaskRay Differential Revision: https://reviews.llvm.org/D74927
43 lines
1.3 KiB
ArmAsm
43 lines
1.3 KiB
ArmAsm
@ RUN: llvm-mc -filetype=obj -triple=armv7-linux-gnueabi %s -o %t
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@ RUN: llvm-readelf -s %t | FileCheck %s
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@@ GNU as sets the thumb state according to the thumb state of the label. If a
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@@ .type directive is placed after the label, set the symbol's thumb state
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@@ according to the thumb state of the .type directive. This matches GNU as in
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@@ most cases.
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.syntax unified
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.text
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.thumb
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func_label:
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.type func_label, %function
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.type foo_impl, %function
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foo_impl:
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bx lr
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.type foo_resolver, %function
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foo_resolver:
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b foo_impl
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.type foo, %gnu_indirect_function
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.set foo, foo_resolver
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@@ Note: GNU as sets the value to 1.
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.thumb
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label:
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bx lr
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.arm
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bx lr
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.type label, %function
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@@ Check func_label, foo_impl, foo_resolver, and foo addresses have bit 0 set.
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@@ Check label has bit 0 unset.
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@ CHECK: Value Size Type Bind Vis Ndx Name
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@ CHECK-NEXT: 00000000 0 NOTYPE LOCAL DEFAULT UND
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@ CHECK-NEXT: 00000001 0 FUNC LOCAL DEFAULT 2 func_label
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@ CHECK-NEXT: 00000001 0 FUNC LOCAL DEFAULT 2 foo_impl
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@ CHECK-NEXT: 00000000 0 NOTYPE LOCAL DEFAULT 2 $t.0
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@ CHECK-NEXT: 00000003 0 FUNC LOCAL DEFAULT 2 foo_resolver
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@ CHECK-NEXT: 00000003 0 IFUNC LOCAL DEFAULT 2 foo
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@ CHECK-NEXT: 00000004 0 FUNC LOCAL DEFAULT 2 label
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@ CHECK-NEXT: 00000006 0 NOTYPE LOCAL DEFAULT 2 $a.1
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