mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-10-03 12:55:45 +00:00
meson: merge all cc_flags arrays into one
The split of arrays is fairly arbitrary and a hang over from the way we had to structure lists of flags when we used GNULIB's compiler flag checking m4 logic. The separate lists leads to cases where we enable a flag in one list and have contradictory setting in another list, which leads to confusion. Reviewed-by: Pavel Hrdina <phrdina@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé
parent
2e85a83abe
commit
8394f08e9d
113
meson.build
113
meson.build
@ -211,7 +211,23 @@ if git_werror.enabled() or git_werror.auto() and git
|
||||
cc_flags += [ '-Werror' ]
|
||||
endif
|
||||
|
||||
|
||||
# gcc --help=warnings outputs
|
||||
ptrdiff_max = cc.sizeof('ptrdiff_t', prefix: '#include <stddef.h>')
|
||||
size_max = cc.sizeof('size_t', prefix: '#include <stdint.h>')
|
||||
# Compute max safe object size by checking ptrdiff_t and size_t sizes.
|
||||
# Ideally we would get PTRDIFF_MAX and SIZE_MAX values but it would
|
||||
# give us (2147483647L) and we would have to remove the () and the suffix
|
||||
# in order to convert it to numbers to be able to pick the smaller one.
|
||||
alloc_max = run_command(
|
||||
'python3', '-c',
|
||||
'print(min(2**(@0@ * 8 - 1) - 1, 2**(@1@ * 8) - 1))'.format(ptrdiff_max, size_max),
|
||||
)
|
||||
|
||||
cc_flags += [
|
||||
'-fasynchronous-unwind-tables',
|
||||
'-fexceptions',
|
||||
'-fipa-pure-const',
|
||||
'-fno-common',
|
||||
'-W',
|
||||
'-Wabsolute-value',
|
||||
@ -219,6 +235,9 @@ cc_flags += [
|
||||
'-Waddress-of-packed-member',
|
||||
'-Waggressive-loop-optimizations',
|
||||
'-Wall',
|
||||
'-Walloc-size-larger-than=@0@'.format(alloc_max.stdout().strip()),
|
||||
'-Warray-bounds=2',
|
||||
'-Wattribute-alias=2',
|
||||
'-Wattribute-warning',
|
||||
'-Wattributes',
|
||||
'-Wbool-compare',
|
||||
@ -228,7 +247,8 @@ cc_flags += [
|
||||
'-Wcannot-profile',
|
||||
'-Wcast-align',
|
||||
'-Wcast-align=strict',
|
||||
'-Wcast-function-type',
|
||||
# We do "bad" function casts all the time for event callbacks
|
||||
'-Wno-cast-function-type',
|
||||
'-Wchar-subscripts',
|
||||
'-Wclobbered',
|
||||
'-Wcomment',
|
||||
@ -251,17 +271,24 @@ cc_flags += [
|
||||
'-Wextra',
|
||||
'-Wformat-contains-nul',
|
||||
'-Wformat-extra-args',
|
||||
'-Wformat-nonliteral',
|
||||
# -Wformat=2 implies -Wformat-nonliteral so we need to manually exclude it
|
||||
'-Wno-format-nonliteral',
|
||||
'-Wformat-overflow=2',
|
||||
'-Wformat-security',
|
||||
# -Wformat enables this by default, and we should keep it,
|
||||
# but need to rewrite various areas of code first
|
||||
'-Wno-format-truncation',
|
||||
'-Wformat-y2k',
|
||||
'-Wformat-zero-length',
|
||||
'-Wframe-address',
|
||||
'-Wframe-larger-than=4096',
|
||||
'-Wfree-nonheap-object',
|
||||
'-Whsa',
|
||||
'-Wif-not-aligned',
|
||||
'-Wignored-attributes',
|
||||
'-Wignored-qualifiers',
|
||||
'-Wimplicit',
|
||||
'-Wimplicit-fallthrough=5',
|
||||
'-Wimplicit-function-declaration',
|
||||
'-Wimplicit-int',
|
||||
'-Wincompatible-pointer-types',
|
||||
@ -272,6 +299,7 @@ cc_flags += [
|
||||
'-Wint-to-pointer-cast',
|
||||
'-Winvalid-memory-model',
|
||||
'-Winvalid-pch',
|
||||
'-Wjump-misses-init',
|
||||
'-Wlogical-not-parentheses',
|
||||
'-Wlogical-op',
|
||||
'-Wmain',
|
||||
@ -293,6 +321,7 @@ cc_flags += [
|
||||
'-Wnested-externs',
|
||||
'-Wnonnull',
|
||||
'-Wnonnull-compare',
|
||||
'-Wnormalized=nfc',
|
||||
'-Wnull-dereference',
|
||||
'-Wodr',
|
||||
'-Wold-style-declaration',
|
||||
@ -318,32 +347,41 @@ cc_flags += [
|
||||
'-Wshift-count-negative',
|
||||
'-Wshift-count-overflow',
|
||||
'-Wshift-negative-value',
|
||||
'-Wshift-overflow=2',
|
||||
# So we have -W enabled, and then have to explicitly turn off...
|
||||
'-Wno-sign-compare',
|
||||
'-Wsizeof-array-argument',
|
||||
'-Wsizeof-pointer-div',
|
||||
'-Wsizeof-pointer-memaccess',
|
||||
'-Wstrict-aliasing',
|
||||
'-Wstrict-prototypes',
|
||||
'-Wstringop-overflow=2',
|
||||
'-Wstringop-truncation',
|
||||
'-Wsuggest-attribute=cold',
|
||||
'-Wsuggest-attribute=const',
|
||||
'-Wno-suggest-attribute=const',
|
||||
'-Wsuggest-attribute=format',
|
||||
'-Wsuggest-attribute=noreturn',
|
||||
'-Wsuggest-attribute=pure',
|
||||
'-Wno-suggest-attribute=pure',
|
||||
'-Wsuggest-final-methods',
|
||||
'-Wsuggest-final-types',
|
||||
'-Wswitch',
|
||||
'-Wswitch-bool',
|
||||
'-Wswitch-enum',
|
||||
'-Wswitch-unreachable',
|
||||
'-Wsync-nand',
|
||||
'-Wtautological-compare',
|
||||
'-Wtrampolines',
|
||||
'-Wtrigraphs',
|
||||
'-Wtype-limits',
|
||||
# Clang incorrectly complains about dup typedefs win gnu99 mode
|
||||
# so use this Clang-specific arg to keep it quiet
|
||||
'-Wno-typedef-redefinition',
|
||||
'-Wuninitialized',
|
||||
'-Wunknown-pragmas',
|
||||
'-Wunused',
|
||||
'-Wunused-but-set-parameter',
|
||||
'-Wunused-but-set-variable',
|
||||
'-Wunused-const-variable=2',
|
||||
'-Wunused-function',
|
||||
'-Wunused-label',
|
||||
'-Wunused-local-typedefs',
|
||||
@ -355,76 +393,11 @@ cc_flags += [
|
||||
'-Wvariadic-macros',
|
||||
'-Wvector-operation-performance',
|
||||
'-Wvla',
|
||||
'-Wvla-larger-then=4031',
|
||||
'-Wvolatile-register-var',
|
||||
'-Wwrite-strings',
|
||||
]
|
||||
|
||||
# gcc --help=warnings outputs
|
||||
ptrdiff_max = cc.sizeof('ptrdiff_t', prefix: '#include <stddef.h>')
|
||||
size_max = cc.sizeof('size_t', prefix: '#include <stdint.h>')
|
||||
# Compute max safe object size by checking ptrdiff_t and size_t sizes.
|
||||
# Ideally we would get PTRDIFF_MAX and SIZE_MAX values but it would
|
||||
# give us (2147483647L) and we would have to remove the () and the suffix
|
||||
# in order to convert it to numbers to be able to pick the smaller one.
|
||||
alloc_max = run_command(
|
||||
'python3', '-c',
|
||||
'print(min(2**(@0@ * 8 - 1) - 1, 2**(@1@ * 8) - 1))'.format(ptrdiff_max, size_max),
|
||||
)
|
||||
cc_flags += [
|
||||
'-Walloc-size-larger-than=@0@'.format(alloc_max.stdout().strip()),
|
||||
'-Warray-bounds=2',
|
||||
'-Wattribute-alias=2',
|
||||
'-Wformat-overflow=2',
|
||||
'-Wformat-truncation=2',
|
||||
'-Wimplicit-fallthrough=5',
|
||||
'-Wnormalized=nfc',
|
||||
'-Wshift-overflow=2',
|
||||
'-Wstringop-overflow=2',
|
||||
'-Wunused-const-variable=2',
|
||||
'-Wvla-larger-then=4031',
|
||||
]
|
||||
|
||||
cc_flags += [
|
||||
# So we have -W enabled, and then have to explicitly turn off...
|
||||
'-Wno-sign-compare',
|
||||
|
||||
# We do "bad" function casts all the time for event callbacks
|
||||
'-Wno-cast-function-type',
|
||||
|
||||
# Clang incorrectly complains about dup typedefs win gnu99 mode
|
||||
# so use this Clang-specific arg to keep it quiet
|
||||
'-Wno-typedef-redefinition',
|
||||
|
||||
# We don't use -Wc++-compat so we have to enable it explicitly
|
||||
'-Wjump-misses-init',
|
||||
|
||||
# -Wswitch is enabled but that doesn't report missing enums if a default:
|
||||
# is present
|
||||
'-Wswitch-enum',
|
||||
|
||||
# -Wformat=2 implies -Wformat-nonliteral so we need to manually exclude it
|
||||
'-Wno-format-nonliteral',
|
||||
|
||||
# -Wformat enables this by default, and we should keep it,
|
||||
# but need to rewrite various areas of code first
|
||||
'-Wno-format-truncation',
|
||||
|
||||
'-Wframe-larger-than=4096',
|
||||
|
||||
# extra special flags
|
||||
'-fexceptions',
|
||||
'-fasynchronous-unwind-tables',
|
||||
|
||||
# Need -fipa-pure-const in order to make -Wsuggest-attribute=pure
|
||||
# fire even without -O.
|
||||
'-fipa-pure-const',
|
||||
|
||||
# We should eventually enable this, but right now there are at
|
||||
# least 75 functions triggering warnings.
|
||||
'-Wno-suggest-attribute=pure',
|
||||
'-Wno-suggest-attribute=const',
|
||||
]
|
||||
|
||||
# on aarch64 error: -fstack-protector not supported for this target
|
||||
if host_machine.cpu_family() != 'aarch64'
|
||||
if host_machine.system() in [ 'linux', 'freebsd', 'windows' ]
|
||||
|
||||
Loading…
Reference in New Issue
Block a user