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scons: Fix linker flags for prof/perf builds.

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SCons does not use a variable called LDFLAGS, it uses one called
LINKFLAGS. Switch some errant uses to the correct name.

Also, adjust all the other variable names to use LINK, for consistency
and to avoid confusion and avoid mistakes in the future.

Change-Id: I38d40f5231afdf62bcfba04478d403d65e9b1e26
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/51987
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Gabe Black
2021-10-24 23:30:58 -07:00
parent 45cfd99ce9
commit e1de4abdb0
2 changed files with 12 additions and 12 deletions
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10
src/SConscript
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@@ -830,10 +830,10 @@ envs = {
envs['debug'].Append(CPPDEFINES=['DEBUG', 'TRACING_ON=1'])
envs['opt'].Append(CCFLAGS=['-g'], CPPDEFINES=['TRACING_ON=1'])
envs['fast'].Append(CPPDEFINES=['NDEBUG', 'TRACING_ON=0'])
envs['prof'].Append(CCFLAGS=['-g', '-pg'], LDFLAGS=['-pg'],
envs['prof'].Append(CCFLAGS=['-g', '-pg'], LINKFLAGS=['-pg'],
CPPDEFINES=['NDEBUG', 'TRACING_ON=0'])
envs['perf'].Append(CCFLAGS=['-g'], CPPDEFINES=['NDEBUG', 'TRACING_ON=0'],
LDFLAGS=['-Wl,--no-as-needed', '-lprofiler', '-Wl,--as-needed'])
LINKFLAGS=['-Wl,--no-as-needed', '-lprofiler', '-Wl,--as-needed'])
# For Link Time Optimization, the optimisation flags used to compile
# individual files are decoupled from those used at link time
@@ -844,13 +844,13 @@ if env['GCC']:
envs['debug'].Append(CCFLAGS=['-gstabs+'])
else:
envs['debug'].Append(CCFLAGS=['-ggdb3'])
envs['debug'].Append(LDFLAGS=['-O0'])
envs['debug'].Append(LINKFLAGS=['-O0'])
# opt, fast, prof and perf all share the same cc flags, also add
# the optimization to the ldflags as LTO defers the optimization
# the optimization to the linkflags as LTO defers the optimization
# to link time
for target in ['opt', 'fast', 'prof', 'perf']:
envs[target].Append(CCFLAGS=['-O3', '${LTO_CCFLAGS}'])
envs[target].Append(LDFLAGS=['-O3', '${LTO_LDFLAGS}'])
envs[target].Append(LINKFLAGS=['-O3', '${LTO_LINKFLAGS}'])
elif env['CLANG']:
envs['debug'].Append(CCFLAGS=['-g', '-O0'])