forked from mirrors/nixpkgs
7415d0589d
Enable LTO support on Linux by default again. Add patch to fix dependentlibs.list generation under LTO. This is necessary for fixing firefox-wayland crashing when built with LTO. Add makeFlags which set ar, ranlib, and nm to be llvm-ar, llvm-ranlib and llvm-nm when building with llvm-based LTO. (bmo#1480005)
46 lines
1.8 KiB
Diff
46 lines
1.8 KiB
Diff
--- a/toolkit/library/build/dependentlibs.py
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+++ b/toolkit/library/build/dependentlibs.py
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@@ -36,26 +36,17 @@ def dependentlibs_win32_objdump(lib):
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proc.wait()
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return deps
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-def dependentlibs_readelf(lib):
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+def dependentlibs_elf_objdump(lib):
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'''Returns the list of dependencies declared in the given ELF .so'''
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- proc = subprocess.Popen([substs.get('TOOLCHAIN_PREFIX', '') + 'readelf', '-d', lib], stdout = subprocess.PIPE,
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+ proc = subprocess.Popen([substs['LLVM_OBJDUMP'], '--private-headers', lib], stdout = subprocess.PIPE,
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universal_newlines=True)
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deps = []
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for line in proc.stdout:
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- # Each line has the following format:
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- # tag (TYPE) value
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- # or with BSD readelf:
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- # tag TYPE value
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- # Looking for NEEDED type entries
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- tmp = line.split(' ', 3)
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- if len(tmp) > 3 and 'NEEDED' in tmp[2]:
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- # NEEDED lines look like:
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- # 0x00000001 (NEEDED) Shared library: [libname]
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- # or with BSD readelf:
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- # 0x00000001 NEEDED Shared library: [libname]
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- match = re.search('\[(.*)\]', tmp[3])
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- if match:
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- deps.append(match.group(1))
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+ # We are looking for lines with the format:
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+ # NEEDED libname
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+ tmp = line.split()
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+ if len(tmp) == 2 and tmp[0] == 'NEEDED':
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+ deps.append(tmp[1])
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proc.wait()
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return deps
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@@ -110,7 +101,7 @@ def gen_list(output, lib):
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libpaths = [os.path.join(substs['DIST'], 'bin')]
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binary_type = get_type(lib)
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if binary_type == ELF:
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- func = dependentlibs_readelf
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+ func = dependentlibs_elf_objdump
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elif binary_type == MACHO:
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func = dependentlibs_mac_objdump
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else:
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