mirror of
https://sourceware.org/git/glibc.git
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Fix bits/syscall.h generation for MIPS using generic code.
This commit is contained in:
Joseph Myers
parent
c2aeee16c8
commit
25bb26d0e8
@ -1,3 +1,17 @@
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2011-12-22 Joseph Myers <joseph@codesourcery.com>
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* sysdeps/unix/sysv/linux/mips/Makefile (no_syscall_list_h)
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(mips_list_syscalls, $(objpfx)syscall-%.h $(objpfx)syscall-%.d):
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Remove.
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(syscall-list-variants, syscall-list-includes)
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(syscall-list-o32-options, syscall-list-o32-condition)
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(syscall-list-n32-options, syscall-list-n32-condition)
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(syscall-list-n64-options, syscall-list-n64-condition): Define.
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* sysdeps/unix/sysv/linux/mips/configure.in: Don't generate
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asm-unistd.h.
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* sysdeps/unix/sysv/linux/mips/configure: Regenerate.
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* sysdeps/unix/sysv/linux/mips/sys/syscall.h: Remove.
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2011-12-22 Joseph Myers <joseph@codesourcery.com>
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[BZ #13538]
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@ -7,124 +7,14 @@ sysdep_routines += cachectl cacheflush sysmips _test_and_set
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sysdep_headers += sys/cachectl.h sys/sysmips.h sys/tas.h
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no_syscall_list_h = 1
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# A callable macro that expands to a shell command. Preprocess file $(1)
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# using ABI option $(2) and see which macros it defines. Print FOO for each
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# macro of the form __NR$(3)_FOO, filtering out ABI-specific __NR macros
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# that have a prefix other than $(3).
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mips_list_syscalls = $(filter-out -m%,$(CC)) -E -x c $(+includes) \
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$(sysincludes) -D_LIBC -dM -mabi=$(2) $(1) | \
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sed -n 's@^\#define __NR$(3)_\([^ ]*\) .*@\1@p' | \
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sed -e '/^[ON]32_/d' -e '/^N64_/d' -e '/^64_/d' | \
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LC_ALL=C sort
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# Generate a list of SYS_* macros from the linux __NR macros.
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#
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# Before version 2.6, linux had separate 32-bit and 64-bit MIPS ports,
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# each with its own set of headers. The ports were merged for 2.6 and
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# this merged port defines the syscalls in a slightly different way.
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# There are therefore three sets of headers that we need to consider:
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#
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# (1) Headers from the separate 32-bit MIPS port. They just define
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# a single list of __NR macros.
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#
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# (2) Headers from the separate 64-bit MIPS port. They unconditionally
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# define syscalls for all three ABIs, with o32 syscalls prefixed
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# by __NR_O32, n32 syscalls prefixed by __NR_N32 and n64 syscalls
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# prefixed by plain __NR.
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#
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# (3) Headers from the combined port. They use the _MIPS_SIM macro to
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# define the right set of syscalls for the current ABI. The syscalls
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# themselves have no special ABI prefix, but the headers also define:
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#
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# __NR_O32_Linux{,_syscalls}
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# __NR_N32_Linux{,_syscalls}
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# __NR_64_Linux{,_syscalls}
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#
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# In case (1) we just want a simple list of SYS_* macros. In cases (2)
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# and (3) we want a file that will work for all three ABIs, regardless
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# of which ABI we are currently using. We also want the file to work
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# if the user later moves from (2) to (3). Thus the file we create
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# for (2) and (3) has the form:
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#
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# #if _MIPS_SIM == _ABIN32
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# # ifdef __NR_N32_open
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# # define SYS_n32syscall1 __NR_N32_n32syscall1
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# # ...
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# # else
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# # define SYS_n32syscall1 __NR_n32syscall1
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# # ...
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# # endif
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# #elif _MIPS_SIM == _ABI64
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# # define SYS_n64syscall1 __NR_n64syscall1
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# # ...
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# #else
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# # ifdef __NR_O32_open
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# # define SYS_o32syscall1 __NR_O32_o32syscall1
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# # ...
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# # else
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# # define SYS_o32syscall1 __NR_o32syscall1
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# # ...
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# # endif
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# #endif
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#
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# Here, __NR_N32_open and __NR_O32_open are used to detect case (2)
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# over case (3). The n64 SYS_* macros can always use the normal
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# ABI-less names.
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$(objpfx)syscall-%.h $(objpfx)syscall-%.d: $(firstword $(wildcard $(sysdirs:=/sys/syscall.h)))
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$(make-target-directory)
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$(CC) -E -x c $(+includes) $(sysincludes) -D_LIBC $< -MD -MP \
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-MF $(@:.h=.d)-t -MT '$(@:.d=.h) $(@:.h=.d)' > /dev/null
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{ \
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echo '/* Generated at libc build time from kernel syscall list. */';\
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echo ''; \
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echo '#ifndef _SYSCALL_H'; \
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echo '# error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."'; \
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echo '#endif'; \
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echo ''; \
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echo '#include <sgidefs.h>'; \
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rm -f $(@:.d=.h).new32 $(@:.d=.h).newn32 $(@:.d=.h).new64; \
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$(call mips_list_syscalls,$<,n32,_N32) > $(@:.d=.h).newn32; \
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if test -s $(@:.d=.h).newn32; then \
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if grep open $(@:.d=.h).newn32 > /dev/null; then \
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$(call mips_list_syscalls,$<,32,_O32) > $(@:.d=.h).new32; \
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$(call mips_list_syscalls,$<,64,) > $(@:.d=.h).new64; \
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else \
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$(call mips_list_syscalls,$<,32,) > $(@:.d=.h).new32; \
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$(call mips_list_syscalls,$<,n32,) > $(@:.d=.h).newn32; \
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$(call mips_list_syscalls,$<,64,) > $(@:.d=.h).new64; \
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fi; \
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echo '#if _MIPS_SIM == _ABIN32'; \
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echo '# ifdef __NR_N32_open'; \
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sed 's@\(.*\)@# define SYS_\1 __NR_N32_\1@' < $(@:.d=.h).newn32; \
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echo '# else'; \
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sed 's@\(.*\)@# define SYS_\1 __NR_\1@' < $(@:.d=.h).newn32; \
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echo '# endif'; \
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echo '#elif _MIPS_SIM == _ABI64'; \
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sed 's@\(.*\)@# define SYS_\1 __NR_\1@' < $(@:.d=.h).new64; \
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echo '#else'; \
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echo '# ifdef __NR_O32_open'; \
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sed 's@\(.*\)@# define SYS_\1 __NR_O32_\1@' < $(@:.d=.h).new32; \
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echo '# else'; \
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sed 's@\(.*\)@# define SYS_\1 __NR_\1@' < $(@:.d=.h).new32; \
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echo '# endif'; \
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echo '#endif'; \
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else \
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$(CC) -E -x c $(+includes) $(sysincludes) -D_LIBC -dM $< | \
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sed -n 's@^\#define __NR_\([^ ]*\) .*@\#define SYS_\1 __NR_\1@p' | \
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LC_ALL=C sort; \
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fi; \
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rm -f $(@:.d=.h).new32 $(@:.d=.h).newn32 $(@:.d=.h).new64; \
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} > $(@:.d=.h).new
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mv -f $(@:.d=.h).new $(@:.d=.h)
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ifneq (,$(objpfx))
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sed $(sed-remove-objpfx) $(@:.h=.d)-t > $(@:.h=.d)-t2
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rm -f $(@:.h=.d)-t
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mv -f $(@:.h=.d)-t2 $(@:.h=.d)
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else
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mv -f $(@:.h=.d)-t $(@:.h=.d)
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endif
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syscall-list-variants := o32 n32 n64
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syscall-list-includes := sgidefs.h
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syscall-list-o32-options := -mabi=32
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syscall-list-o32-condition := _MIPS_SIM == _MIPS_SIM_ABI32
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syscall-list-n32-options := -mabi=n32
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syscall-list-n32-condition := _MIPS_SIM == _MIPS_SIM_ABIN32
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syscall-list-n64-options := -mabi=64
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syscall-list-n64-condition := _MIPS_SIM == _MIPS_SIM_ABI64
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endif
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ifeq ($(subdir),elf)
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76
sysdeps/unix/sysv/linux/mips/configure
vendored
76
sysdeps/unix/sysv/linux/mips/configure
vendored
@ -1,82 +1,6 @@
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# This file is generated from configure.in by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/unix/sysv/linux/mips.
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case $machine in
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mips*64*)
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rm -f asm-unistd.h
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asm_unistd_h=$sysheaders/asm/unistd.h
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if test ! -f $asm_unistd_h; then
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# Try to find asm/unistd.h in compiler header search path.
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try_asm_unistd_h=`echo '#include <asm/unistd.h>' | $CPP - |
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sed -n '/^# 1 "\(\/[^"]*\)".*/{s,,\1,p;q;}'`
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if test -n "$try_asm_unistd_h" &&
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test -f "$try_asm_unistd_h"; then
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asm_unistd_h=$try_asm_unistd_h
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fi
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fi
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if test ! -f "$asm_unistd_h"; then
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{ echo "$as_me:$LINENO: WARNING: *** asm/unistd.h not found, it will not be pre-processed" >&5
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echo "$as_me: WARNING: *** asm/unistd.h not found, it will not be pre-processed" >&2;}
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echo '#include <asm/unistd.h>' > asm-unistd.h
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elif grep __NR_N32_open "$asm_unistd_h" > /dev/null; then
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# The point of this preprocessing is to turn __NR_<syscall> into
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# __NR_N64_<syscall>, as well as to define __NR_<syscall> to
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# __NR_<abi>_<syscall>, if __NR_<abi>_<syscall> is defined
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# and <abi> is the compiler-enabled ABI.
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cat "$asm_unistd_h" |
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sed -e 's,__NR_,__NR_N64_,g' \
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-e 's,__NR_N64_##,__NR_##,g' \
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-e 's,__NR_N64_O32_,__NR_O32_,g' \
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-e 's,__NR_N64_N32_,__NR_N32_,g' \
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-e 's,__NR_N64_N64_,__NR_N64_,g' \
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| awk > asm-unistd.h '
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BEGIN { print "#include <sgidefs.h>"; }
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/^#define __NR.*unused/ { print; next; }
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/^#define __NR_N64__exit __NR_N64_exit/ {
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print "#define __NR__exit __NR_exit";
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print "#define __NR_O32__exit __NR_O32_exit";
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print "#define __NR_N32__exit __NR_N32_exit";
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print; next;
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}
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/^#define __NR_O32_/ {
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name = $2;
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sub (/_O32_/, "_", name);
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print;
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print "#if _MIPS_SIM == _ABIO32";
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print "# define " name " " $2;
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print "#endif";
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next;
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}
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/^#define __NR_N32_/ {
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name = $2;
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sub (/_N32_/, "_", name);
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print;
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print "#if _MIPS_SIM == _ABIN32";
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print "# define " name " " $2;
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print "#endif";
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next;
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}
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/^#define __NR_N64_/ {
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name = $2;
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sub (/_N64_/, "_", name);
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print;
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print "#if _MIPS_SIM == _ABI64";
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print "# define " name " " $2;
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print "#endif";
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next;
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}
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{
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print;
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}'
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else
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echo '#include <asm/unistd.h>' > asm-unistd.h
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fi ;;
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mips*)
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rm -f asm-unistd.h
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echo '#include <asm/unistd.h>' > asm-unistd.h
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;;
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esac
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case "$prefix" in
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/usr | /usr/)
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# 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib.
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@ -2,81 +2,6 @@ sinclude(./aclocal.m4)dnl Autoconf lossage
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/unix/sysv/linux/mips.
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case $machine in
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mips*64*)
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rm -f asm-unistd.h
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asm_unistd_h=$sysheaders/asm/unistd.h
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if test ! -f $asm_unistd_h; then
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# Try to find asm/unistd.h in compiler header search path.
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try_asm_unistd_h=`echo '#include <asm/unistd.h>' | $CPP - |
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sed -n '/^# 1 "\(\/[^"]*\)".*/{s,,\1,p;q;}'`
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if test -n "$try_asm_unistd_h" &&
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test -f "$try_asm_unistd_h"; then
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asm_unistd_h=$try_asm_unistd_h
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fi
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fi
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if test ! -f "$asm_unistd_h"; then
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AC_MSG_WARN([*** asm/unistd.h not found, it will not be pre-processed])
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echo '#include <asm/unistd.h>' > asm-unistd.h
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elif grep __NR_N32_open "$asm_unistd_h" > /dev/null; then
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# The point of this preprocessing is to turn __NR_<syscall> into
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# __NR_N64_<syscall>, as well as to define __NR_<syscall> to
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# __NR_<abi>_<syscall>, if __NR_<abi>_<syscall> is defined
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# and <abi> is the compiler-enabled ABI.
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cat "$asm_unistd_h" |
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sed -e 's,__NR_,__NR_N64_,g' \
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-e 's,__NR_N64_##,__NR_##,g' \
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-e 's,__NR_N64_O32_,__NR_O32_,g' \
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-e 's,__NR_N64_N32_,__NR_N32_,g' \
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-e 's,__NR_N64_N64_,__NR_N64_,g' \
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| awk > asm-unistd.h '
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BEGIN { print "#include <sgidefs.h>"; }
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/^#define __NR.*unused/ { print; next; }
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/^#define __NR_N64__exit __NR_N64_exit/ {
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print "#define __NR__exit __NR_exit";
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print "#define __NR_O32__exit __NR_O32_exit";
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print "#define __NR_N32__exit __NR_N32_exit";
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print; next;
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}
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/^#define __NR_O32_/ {
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name = $2;
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sub (/_O32_/, "_", name);
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print;
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print "#if _MIPS_SIM == _ABIO32";
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print "# define " name " " $2;
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print "#endif";
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next;
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}
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/^#define __NR_N32_/ {
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name = $2;
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sub (/_N32_/, "_", name);
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print;
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print "#if _MIPS_SIM == _ABIN32";
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print "# define " name " " $2;
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print "#endif";
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next;
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}
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/^#define __NR_N64_/ {
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name = $2;
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sub (/_N64_/, "_", name);
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print;
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print "#if _MIPS_SIM == _ABI64";
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print "# define " name " " $2;
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print "#endif";
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next;
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}
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{
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print;
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}'
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else
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echo '#include <asm/unistd.h>' > asm-unistd.h
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fi ;;
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mips*)
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rm -f asm-unistd.h
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echo '#include <asm/unistd.h>' > asm-unistd.h
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;;
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esac
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case "$prefix" in
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/usr | /usr/)
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# 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib.
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@ -1,42 +0,0 @@
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/* Copyright (C) 1995, 1996, 1997, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
|
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modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
|
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _SYSCALL_H
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#define _SYSCALL_H 1
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/* This file should list the numbers of the system the system knows.
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But instead of duplicating this we use the information available
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from the kernel sources. */
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#ifdef _LIBC
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/* Since the kernel doesn't define macro names in a way usable for
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glibc, we preprocess this header, and use it during the glibc build
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process. */
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# include <asm-unistd.h>
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#else
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# include <asm/unistd.h>
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#endif
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#ifndef _LIBC
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/* The Linux kernel header file defines macros `__NR_<name>', but some
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programs expect the traditional form `SYS_<name>'. So in building libc
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we scan the kernel's list and produce <bits/syscall.h> with macros for
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all the `SYS_' names. */
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# include <bits/syscall.h>
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#endif
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#endif
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