Then you should propose that, instead of adding 10 other unrelated
things to the diff.

> ping. The addition of SHT_SYMTAB_SHNDX is not just estetic improvement but 
> fixes GHC HEAD build failure on OpenBSD 6.2-current. Hence pinging.
> 
> Thanks!
> Karel
> 
> On Tue, 16 Jan 2018 11:51:53 +0100
> Martin Pieuchot <[email protected]> wrote:
> 
> > On 15/01/18(Mon) 23:11, Karel Gardas wrote:
> > > patch below defines SHT_SYMTAB_SHNDX which is required for usage of 
> > > SHN_XINDEX which got added/defined during October 2017 by mpi.
> > > 
> > > See: http://www.sco.com/developers/gabi/latest/ch4.sheader.html:
> > > 
> > > SHT_SYMTAB_SHNDX
> > >     This section is associated with a symbol table section and is 
> > > required if any of the section header indexes referenced by that symbol 
> > > table contain the escape value SHN_XINDEX. The section is an array of 
> > > Elf32_Word values. Each value corresponds one to one with a symbol table 
> > > entry and appear in the same order as those entries. The values represent 
> > > the section header indexes against which the symbol table entries are 
> > > defined. Only if the corresponding symbol table entry's st_shndx field 
> > > contains the escape value SHN_XINDEX will the matching Elf32_Word hold 
> > > the actual section header index; otherwise, the entry must be SHN_UNDEF 
> > > (0).
> > 
> > Thanks, I took some time to pull more of the defines included in
> > FreeBSD's r153502 where SHT_SYMTAB_SHNDX got introduced.  I'd like to
> > commit the diff below.
> > 
> > Index: sys/sys/exec_elf.h
> > ===================================================================
> > RCS file: /cvs/src/sys/sys/exec_elf.h,v
> > retrieving revision 1.78
> > diff -u -p -r1.78 exec_elf.h
> > --- sys/sys/exec_elf.h      9 Dec 2017 06:35:08 -0000       1.78
> > +++ sys/sys/exec_elf.h      16 Jan 2018 10:48:02 -0000
> > @@ -99,22 +99,27 @@ typedef __uint16_t      Elf64_Quarter;
> >  #define ELFDATANUM 3               /* number of data encode defines */
> >  
> >  /* e_ident[] Operating System/ABI */
> > -#define ELFOSABI_SYSV              0       /* UNIX System V ABI */
> > +#define ELFOSABI_NONE              0       /* UNIX System V ABI */
> >  #define ELFOSABI_HPUX              1       /* HP-UX operating system */
> >  #define ELFOSABI_NETBSD            2       /* NetBSD */
> >  #define ELFOSABI_LINUX             3       /* GNU/Linux */
> >  #define ELFOSABI_HURD              4       /* GNU/Hurd */
> >  #define ELFOSABI_86OPEN            5       /* 86Open common IA32 ABI */
> >  #define ELFOSABI_SOLARIS   6       /* Solaris */
> > -#define ELFOSABI_MONTEREY  7       /* Monterey */
> > +#define ELFOSABI_AIX               7       /* AIX */
> >  #define ELFOSABI_IRIX              8       /* IRIX */
> >  #define ELFOSABI_FREEBSD   9       /* FreeBSD */
> >  #define ELFOSABI_TRU64             10      /* TRU64 UNIX */
> >  #define ELFOSABI_MODESTO   11      /* Novell Modesto */
> >  #define ELFOSABI_OPENBSD   12      /* OpenBSD */
> > +#define ELFOSABI_OPENVMS   13      /* Open VMS */
> > +#define ELFOSABI_NSK               14      /* HP Non-Stop Kernel */
> >  #define ELFOSABI_ARM               97      /* ARM */
> >  #define ELFOSABI_STANDALONE        255     /* Standalone (embedded) 
> > application */
> >  
> > +#define ELFOSABI_SYSV              ELFOSABI_NONE   /* symbol used in old 
> > spec */
> > +#define ELFOSABI_MONTEREY  ELFOSABI_AIX    /* Monterey */
> > +
> >  /* e_ident */
> >  #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
> >                        (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
> > @@ -164,8 +169,10 @@ typedef struct {
> >  #define ET_DYN             3               /* shared object file */
> >  #define ET_CORE            4               /* core file */
> >  #define ET_NUM             5               /* number of types */
> > -#define ET_LOPROC  0xff00          /* reserved range for processor */
> > -#define ET_HIPROC  0xffff          /*  specific e_type */
> > +#define ET_LOOS            0xfe00          /* First operating system 
> > specific. */
> > +#define ET_HIOS            0xfeff          /* Last operating 
> > system-specific. */
> > +#define ET_LOPROC  0xff00          /* First processor-specific. */
> > +#define ET_HIPROC  0xffff          /*  Last processor-specific. */
> >  
> >  /* e_machine */
> >  #define EM_NONE            0               /* No Machine */
> > @@ -241,25 +248,31 @@ typedef struct {
> >  #define SHN_LORESERVE      0xff00          /* lower bounds of reserved 
> > indexes */
> >  #define SHN_LOPROC 0xff00          /* reserved range for processor */
> >  #define SHN_HIPROC 0xff1f          /*   specific section indexes */
> > +#define SHN_LOOS   0xff20          /* First operating system-specific. */
> > +#define SHN_HIOS   0xff3f          /* Last operating system-specific. */
> >  #define SHN_ABS            0xfff1          /* absolute value */
> >  #define SHN_COMMON 0xfff2          /* common symbol */
> >  #define SHN_XINDEX 0xffff          /* Escape -- index stored elsewhere. */
> >  #define SHN_HIRESERVE      0xffff          /* upper bounds of reserved 
> > indexes */
> >  
> >  /* sh_type */
> > -#define SHT_NULL   0               /* inactive */
> > -#define SHT_PROGBITS       1               /* program defined information 
> > */
> > -#define SHT_SYMTAB 2               /* symbol table section */
> > -#define SHT_STRTAB 3               /* string table section */
> > -#define SHT_RELA   4               /* relocation section with addends*/
> > -#define SHT_HASH   5               /* symbol hash table section */
> > -#define SHT_DYNAMIC        6               /* dynamic section */
> > -#define SHT_NOTE   7               /* note section */
> > -#define SHT_NOBITS 8               /* no space section */
> > -#define SHT_REL            9               /* relation section without 
> > addends */
> > -#define SHT_SHLIB  10              /* reserved - purpose unknown */
> > -#define SHT_DYNSYM 11              /* dynamic symbol table section */
> > -#define SHT_NUM            12              /* number of section types */
> > +#define SHT_NULL           0       /* inactive */
> > +#define SHT_PROGBITS               1       /* program defined information 
> > */
> > +#define SHT_SYMTAB         2       /* symbol table section */
> > +#define SHT_STRTAB         3       /* string table section */
> > +#define SHT_RELA           4       /* relocation section with addends*/
> > +#define SHT_HASH           5       /* symbol hash table section */
> > +#define SHT_DYNAMIC                6       /* dynamic section */
> > +#define SHT_NOTE           7       /* note section */
> > +#define SHT_NOBITS         8       /* no space section */
> > +#define SHT_REL                    9       /* relation section without 
> > addends */
> > +#define SHT_SHLIB          10      /* reserved - purpose unknown */
> > +#define SHT_DYNSYM         11      /* dynamic symbol table section */
> > +#define SHT_INIT_ARRAY             14      /* Initialization function 
> > pointers. */
> > +#define SHT_FINI_ARRAY             15      /* Termination function 
> > pointers. */
> > +#define SHT_PREINIT_ARRAY  16      /* Pre-initialization function ptrs. */
> > +#define SHT_GROUP          17      /* Section group. */
> > +#define SHT_SYMTAB_SHNDX   18      /* Section indexes (see SHN_XINDEX). */
> >  #define SHT_LOPROC 0x70000000      /* reserved range for processor */
> >  #define SHT_HIPROC 0x7fffffff      /*  specific section header types */
> >  #define SHT_LOUSER 0x80000000      /* reserved range for application */
> > @@ -338,15 +351,16 @@ typedef struct {
> >  #define ELF64_ST_TYPE(x)   (((unsigned int) x) & 0xf)
> >  #define ELF64_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
> >  
> > -/* Symbol Binding - ELF32_ST_BIND - st_info */
> > +/* Symbol Binding - ELFNN_ST_BIND - st_info */
> >  #define STB_LOCAL  0               /* Local symbol */
> >  #define STB_GLOBAL 1               /* Global symbol */
> >  #define STB_WEAK   2               /* like global - lower precedence */
> >  #define STB_NUM            3               /* number of symbol bindings */
> > +#define STB_LOOS   10      /* Start of operating system reserved range. */
> >  #define STB_LOPROC 13              /* reserved range for processor */
> >  #define STB_HIPROC 15              /*  specific symbol bindings */
> >  
> > -/* Symbol type - ELF32_ST_TYPE - st_info */
> > +/* Symbol type - ELFNN_ST_TYPE - st_info */
> >  #define STT_NOTYPE 0               /* not specified */
> >  #define STT_OBJECT 1               /* data object */
> >  #define STT_FUNC   2               /* function */
> 
> 
> -- 
> Karel Gardas <[email protected]>
> 

`

Reply via email to