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Use PIE/PIC on Linux

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This commit is contained in:
Christoffer Lerno
2024-08-11 23:00:38 +02:00
parent 3cae557b88
commit 412fa4b12f
2 changed files with 7 additions and 10 deletions
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1
releasenotes.md
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@@ -31,6 +31,7 @@
- Printable values passed to the Formatter as pointers, will print as if passed by value.
- Pointers are rendered with "0x" prefix when passed to '%s'.
- Add temp allocator scribble.
- Use PIC by default on Linux.
### Fixes

16
src/compiler/target.c
View File

@@ -1661,10 +1661,11 @@ static RelocModel arch_os_reloc_default(ArchType arch, OsType os, EnvironmentTyp
return ARCH_TYPE_X86_64 == arch ? RELOC_SMALL_PIC : RELOC_NONE;
case OS_TYPE_WASI:
return RELOC_NONE;
case OS_TYPE_LINUX:
return RELOC_SMALL_PIC;
case OS_TYPE_UNKNOWN:
case OS_TYPE_NONE:
case OS_TYPE_FREE_BSD:
case OS_TYPE_LINUX:
case OS_TYPE_NETBSD:
switch (arch)
{
@@ -1688,13 +1689,8 @@ static RelocModel arch_os_reloc_default(ArchType arch, OsType os, EnvironmentTyp
case OS_TYPE_WASI:
case OS_TYPE_FREE_BSD:
case OS_TYPE_NETBSD:
return RELOC_SMALL_PIE;
case OS_TYPE_LINUX:
if (env == ENV_TYPE_MUSLEABI || env == ENV_TYPE_MUSLEABIHF || env == ENV_TYPE_ANDROID)
{
return RELOC_SMALL_PIE;
}
return RELOC_NONE;
return RELOC_SMALL_PIE;
case OS_UNSUPPORTED:
UNREACHABLE
}
@@ -2021,9 +2017,9 @@ void target_setup(BuildTarget *target)
compiler.platform.arch,
compiler.platform.environment_type);
compiler.platform.reloc_model = arch_os_reloc_default(compiler.platform.arch,
compiler.platform.os,
compiler.platform.environment_type,
compiler.build.type != TARGET_TYPE_EXECUTABLE);
compiler.platform.os,
compiler.platform.environment_type,
compiler.build.type != TARGET_TYPE_EXECUTABLE);
compiler.platform.pic_required = arch_os_pic_default_forced(compiler.platform.arch, compiler.platform.os);
// Override PIC, but only if the platform does not require PIC
if (target->reloc_model != RELOC_DEFAULT