Alien-TinyCC
view release on metacpan or search on metacpan
[ENHANCEMENTS]
* Created a general patching function, used now by Windows and BSD build
systems, and used to patch the test files for all systems.
[BUG FIXES]
* Patched MidnightBSD detection.
* Added -fPIC flag for systems whose Perl was compiled with it.
* Fixed stdarg.h issues for older gcc header collections.
* Added method to detect, and patch if necessary, the proper path for
ucontext.h (either #include <ucontext.h> or #include <sys/ucontext.h>).
[OTHER]
* Added a commit hook (and instructions in the README for activation) which
should help keep this file up-to-date. :-)
inc/My/Build/Linux.pm view on Meta::CPAN
return if $self->notes('build_state') eq $prefix;
$self->my_clean;
# Get the system-specific make command
my $make = $self->make_command;
# move into the source directory and perform configure, make, and install
chdir 'src';
# Add -fPIC if it's in our Perl Config's cccdlflags
use Config;
$ENV{CFLAGS} = '' unless $ENV{CFLAGS}; # Avoid undef warnings
$ENV{CFLAGS} .= ' -fPIC'
if $Config{cccdlflags} =~ /-fPIC/ and $ENV{CFLAGS} !~ /-fPIC/;
$ENV{CFLAGS} .= ' -fpic'
if $Config{cccdlflags} =~ /-fpic/ and $ENV{CFLAGS} !~ /-fpic/;
# clean followed by a normal incantation
my $extra_args = $self->extra_config_args;
system("./configure --prefix=$prefix $extra_args")
and die 'tcc build failed at ./configure';
system($make)
and die 'tcc build failed at make';
system($make, 'install')
and die 'tcc build failed at make install';
inc/My/Build/MacOSX.pm view on Meta::CPAN
########################################################################
package My::Build::MacOSX;
########################################################################
use strict;
use warnings;
use parent 'My::Build::Linux';
# Figure out if gcc thinks the 64-bit flags are set, and use that to set
# the cpu type for the config args.
my $extra_config_args = '--cpu=x86';
open my $out_fh, '>', '_test.h';
print $out_fh "\n";
close $out_fh;
$extra_config_args .= '-64' if `gcc -E -dM _test.h` =~ /__x86_64__/;
unlink '_test.h';
sub extra_config_args { $extra_config_args }
# We might need to munge the environment variables for dumb setups,
# specifically those that are llvm-backed gcc emulators that might not know
# what to do with the -march=native flag.
sub install_to_prefix {
my ($self, $prefix) = @_;
require File::Which;
# Handle the environment variables and such
my $compiler = $ENV{cc} || '/usr/bin/gcc';
while (-l $compiler) {
$compiler = File::Which::which(readlink $compiler);
if ($compiler =~ /llvm/) {
lib/Alien/TinyCC.pm view on Meta::CPAN
# Determine path for libtcc.h
sub libtcc_include_path {
return File::Spec->catdir($dist_dir, 'libtcc') if $^O =~ /MSWin/;
return File::Spec->catdir($dist_dir, 'include');
}
###########################
# Module::Build Functions #
###########################
sub MB_linker_flags {
return ('-L' . libtcc_library_path, '-ltcc');
}
#################################
# ExtUtils::MakeMaker Functions #
#################################
sub EUMM_LIBS {
return (LIBS => ['-L' . libtcc_library_path . '\libtcc -ltcc']) if $^O =~ /MSWin/;
return;
lib/Alien/TinyCC.pm view on Meta::CPAN
'Alien::TinyCC' => 0,
...
},
requires => {
'Alien::TinyCC' => 0,
...
},
needs_compiler => 1,
dynamic_config => 1,
include_dirs => [Alien::TinyCC->libtcc_include_path],
extra_linker_flags => [Alien::TinyCC->MB_linker_flags],
)->create_build_script
At the top of the Perl module that provides the Perl libtcc interface:
# My/C/Tiny/Interface.pm
use Alien::TinyCC; # set LD_LIBRARY_PATH, PATH, etc
BEGIN {
our $VERSION = '0.02';
use XSLoader;
lib/Alien/TinyCC.pm view on Meta::CPAN
=back
If you want to link against F<libtcc>, you will need to include C<Alien::TinyCC>
in your F<.pm> file that loads your XS bindings, to ensure that the
C<PATH> or C<LD_LIBRARY_PATH> is properly set. Then, in your F<Build.PL>
file, you can use
=over
=item MB_linker_flags
gives the proper list of arguments to link against F<libtcc>.
=back
=head1 SEE ALSO
This module provides the Tiny C Compiler. To learn more about this great
project, see L<http://bellard.org/tcc/> and
L<http://savannah.nongnu.org/projects/tinycc>.
src/c67-gen.c view on Meta::CPAN
}
/* generate a test. set 'inv' to invert test. Stack entry is popped */
int gtst(int inv, int t)
{
int ind1, n;
int v, *p;
v = vtop->r & VT_VALMASK;
if (v == VT_CMP) {
/* fast case : can jump directly since flags are set */
// C67 uses B2 sort of as flags register
ind1 = ind;
C67_MVKL(C67_A0, t); //r=reg to load, constant
C67_MVKH(C67_A0, t); //r=reg to load, constant
if (C67_compare_reg != TREG_EAX && // check if not already in a conditional test reg
C67_compare_reg != TREG_EDX &&
C67_compare_reg != TREG_ST0 && C67_compare_reg != C67_B2) {
C67_MV(C67_compare_reg, C67_B2);
C67_compare_reg = C67_B2;
}
src/c67-gen.c view on Meta::CPAN
} else if (op == TOK_NE) {
if ((ft & VT_BTYPE) == VT_DOUBLE)
C67_CMPEQDP(r, fr, C67_B2);
else
C67_CMPEQSP(r, fr, C67_B2);
C67_invert_test = TRUE;
} else {
ALWAYS_ASSERT(FALSE);
}
vtop->r = VT_CMP; // tell TCC that result is in "flags" actually B2
} else {
if (op == '+') {
if ((ft & VT_BTYPE) == VT_DOUBLE) {
C67_ADDDP(r, fr); // ADD fr,r,fr
C67_NOP(6);
} else {
C67_ADDSP(r, fr); // ADD fr,r,fr
C67_NOP(3);
}
vtop--;
/*------------------------------------------------------------------------*/
/* COFF FILE HEADER */
/*------------------------------------------------------------------------*/
struct filehdr {
unsigned short f_magic; /* magic number */
unsigned short f_nscns; /* number of sections */
long f_timdat; /* time & date stamp */
long f_symptr; /* file pointer to symtab */
long f_nsyms; /* number of symtab entries */
unsigned short f_opthdr; /* sizeof(optional hdr) */
unsigned short f_flags; /* flags */
unsigned short f_TargetID; /* for C6x = 0x0099 */
};
/*------------------------------------------------------------------------*/
/* File header flags */
/*------------------------------------------------------------------------*/
#define F_RELFLG 0x01 /* relocation info stripped from file */
#define F_EXEC 0x02 /* file is executable (no unresolved refs) */
#define F_LNNO 0x04 /* line nunbers stripped from file */
#define F_LSYMS 0x08 /* local symbols stripped from file */
#define F_GSP10 0x10 /* 34010 version */
#define F_GSP20 0x20 /* 34020 version */
#define F_SWABD 0x40 /* bytes swabbed (in names) */
#define F_AR16WR 0x80 /* byte ordering of an AR16WR (PDP-11) */
#define F_LITTLE 0x100 /* byte ordering of an AR32WR (vax) */
struct scnhdr {
char s_name[8]; /* section name */
long s_paddr; /* physical address */
long s_vaddr; /* virtual address */
long s_size; /* section size */
long s_scnptr; /* file ptr to raw data for section */
long s_relptr; /* file ptr to relocation */
long s_lnnoptr; /* file ptr to line numbers */
unsigned int s_nreloc; /* number of relocation entries */
unsigned int s_nlnno; /* number of line number entries */
unsigned int s_flags; /* flags */
unsigned short s_reserved; /* reserved byte */
unsigned short s_page; /* memory page id */
};
#define SCNHDR struct scnhdr
#define SCNHSZ sizeof(SCNHDR)
/*------------------------------------------------------------------------*/
/* Define constants for names of "special" sections */
/*------------------------------------------------------------------------*/
/* #define _TEXT ".text" */
#define _DATA ".data"
#define _BSS ".bss"
#define _CINIT ".cinit"
#define _TV ".tv"
/*------------------------------------------------------------------------*/
/* The low 4 bits of s_flags is used as a section "type" */
/*------------------------------------------------------------------------*/
#define STYP_REG 0x00 /* "regular" : allocated, relocated, loaded */
#define STYP_DSECT 0x01 /* "dummy" : not allocated, relocated, not loaded */
#define STYP_NOLOAD 0x02 /* "noload" : allocated, relocated, not loaded */
#define STYP_GROUP 0x04 /* "grouped" : formed of input sections */
#define STYP_PAD 0x08 /* "padding" : not allocated, not relocated, loaded */
#define STYP_COPY 0x10 /* "copy" : used for C init tables -
not allocated, relocated,
loaded; reloc & lineno
entries processed normally */
#define STYP_TEXT 0x20 /* section contains text only */
#define STYP_DATA 0x40 /* section contains data only */
#define STYP_BSS 0x80 /* section contains bss only */
#define STYP_ALIGN 0x100 /* align flag passed by old version assemblers */
#define ALIGN_MASK 0x0F00 /* part of s_flags that is used for align vals */
#define ALIGNSIZE(x) (1 << ((x & ALIGN_MASK) >> 8))
/*------------------------------------------------------------------------*/
/* RELOCATION ENTRIES */
/*------------------------------------------------------------------------*/
struct reloc
{
long r_vaddr; /* (virtual) address of reference */
short r_symndx; /* index into symbol table */
src/configure view on Meta::CPAN
--docdir=*) docdir=`echo $opt | cut -d '=' -f 2`
;;
--sysroot=*) sysroot=`echo $opt | cut -d '=' -f 2`
;;
--source-path=*) source_path=`echo $opt | cut -d '=' -f 2`
;;
--cross-prefix=*) cross_prefix=`echo $opt | cut -d '=' -f 2`
;;
--cc=*) cc=`echo $opt | cut -d '=' -f 2`
;;
--extra-cflags=*) CFLAGS="${opt#--extra-cflags=}"
;;
--extra-ldflags=*) LDFLAGS="${opt#--extra-ldflags=}"
;;
--extra-libs=*) extralibs=${opt#--extra-libs=}
;;
--sysincludepaths=*) tcc_sysincludepaths=`echo $opt | cut -d '=' -f 2`
;;
--libpaths=*) tcc_libpaths=`echo $opt | cut -d '=' -f 2`
;;
--crtprefix=*) tcc_crtprefix=`echo $opt | cut -d '=' -f 2`
;;
--elfinterp=*) tcc_elfinterp=`echo $opt | cut -d '=' -f 2`
src/configure view on Meta::CPAN
--sharedir=DIR documentation root DIR [PREFIX/share]
--docdir=DIR documentation in DIR [SHAREDIR/doc/tcc]
--mandir=DIR man documentation in DIR [SHAREDIR/man]
--infodir=DIR info documentation in DIR [SHAREDIR/info]
Advanced options (experts only):
--source-path=PATH path of source code [$source_path]
--cross-prefix=PREFIX use PREFIX for compile tools [$cross_prefix]
--sysroot=PREFIX prepend PREFIX to library/include paths []
--cc=CC use C compiler CC [$cc]
--extra-cflags= specify compiler flags [$CFLAGS]
--extra-ldflags= specify linker options []
--strip-binaries strip symbol tables from resulting binaries
--disable-static make libtcc.so instead of libtcc.a
--disable-rpath disable use of -rpath with the above
--with-libgcc use /lib/libgcc_s.so.1 instead of libtcc.a
--enable-mingw32 build windows version on linux with mingw32
--enable-cygwin build windows version on windows with cygwin
--enable-cross build cross compilers
--enable-assert enable debug assertions
--with-selinux use mmap for exec mem [needs writable /tmp]
--sysincludepaths=... specify system include paths, colon separated
typedef struct
{
unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */
Elf32_Half e_type; /* Object file type */
Elf32_Half e_machine; /* Architecture */
Elf32_Word e_version; /* Object file version */
Elf32_Addr e_entry; /* Entry point virtual address */
Elf32_Off e_phoff; /* Program header table file offset */
Elf32_Off e_shoff; /* Section header table file offset */
Elf32_Word e_flags; /* Processor-specific flags */
Elf32_Half e_ehsize; /* ELF header size in bytes */
Elf32_Half e_phentsize; /* Program header table entry size */
Elf32_Half e_phnum; /* Program header table entry count */
Elf32_Half e_shentsize; /* Section header table entry size */
Elf32_Half e_shnum; /* Section header table entry count */
Elf32_Half e_shstrndx; /* Section header string table index */
} Elf32_Ehdr;
typedef struct
{
unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */
Elf64_Half e_type; /* Object file type */
Elf64_Half e_machine; /* Architecture */
Elf64_Word e_version; /* Object file version */
Elf64_Addr e_entry; /* Entry point virtual address */
Elf64_Off e_phoff; /* Program header table file offset */
Elf64_Off e_shoff; /* Section header table file offset */
Elf64_Word e_flags; /* Processor-specific flags */
Elf64_Half e_ehsize; /* ELF header size in bytes */
Elf64_Half e_phentsize; /* Program header table entry size */
Elf64_Half e_phnum; /* Program header table entry count */
Elf64_Half e_shentsize; /* Section header table entry size */
Elf64_Half e_shnum; /* Section header table entry count */
Elf64_Half e_shstrndx; /* Section header string table index */
} Elf64_Ehdr;
/* Fields in the e_ident array. The EI_* macros are indices into the
array. The macros under each EI_* macro are the values the byte
#define EV_NONE 0 /* Invalid ELF version */
#define EV_CURRENT 1 /* Current version */
#define EV_NUM 2
/* Section header. */
typedef struct
{
Elf32_Word sh_name; /* Section name (string tbl index) */
Elf32_Word sh_type; /* Section type */
Elf32_Word sh_flags; /* Section flags */
Elf32_Addr sh_addr; /* Section virtual addr at execution */
Elf32_Off sh_offset; /* Section file offset */
Elf32_Word sh_size; /* Section size in bytes */
Elf32_Word sh_link; /* Link to another section */
Elf32_Word sh_info; /* Additional section information */
Elf32_Word sh_addralign; /* Section alignment */
Elf32_Word sh_entsize; /* Entry size if section holds table */
} Elf32_Shdr;
typedef struct
{
Elf64_Word sh_name; /* Section name (string tbl index) */
Elf64_Word sh_type; /* Section type */
Elf64_Xword sh_flags; /* Section flags */
Elf64_Addr sh_addr; /* Section virtual addr at execution */
Elf64_Off sh_offset; /* Section file offset */
Elf64_Xword sh_size; /* Section size in bytes */
Elf64_Word sh_link; /* Link to another section */
Elf64_Word sh_info; /* Additional section information */
Elf64_Xword sh_addralign; /* Section alignment */
Elf64_Xword sh_entsize; /* Entry size if section holds table */
} Elf64_Shdr;
/* Special section indices. */
#define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */
#define SHT_HIOS 0x6fffffff /* End OS-specific type */
#define SHT_LOPROC 0x70000000 /* Start of processor-specific */
#define SHT_ARM_EXIDX 0x70000001 /* Exception Index table */
#define SHT_ARM_PREEMPTMAP 0x70000002 /* dynamic linking pre-emption map */
#define SHT_ARM_ATTRIBUTES 0x70000003 /* Object file compatibility attrs */
#define SHT_HIPROC 0x7fffffff /* End of processor-specific */
#define SHT_LOUSER 0x80000000 /* Start of application-specific */
#define SHT_HIUSER 0x8fffffff /* End of application-specific */
/* Legal values for sh_flags (section flags). */
#define SHF_WRITE (1 << 0) /* Writable */
#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */
#define SHF_EXECINSTR (1 << 2) /* Executable */
#define SHF_MASKPROC 0xf0000000 /* Processor-specific */
#define SHF_MERGE 0x10
#define SHF_STRINGS 0x20
#define SHF_INFO_LINK 0x40
#define SHF_LINK_ORDER 0x80
Elf64_Addr st_value; /* Symbol value */
Elf64_Xword st_size; /* Symbol size */
} Elf64_Sym;
/* The syminfo section if available contains additional information about
every dynamic symbol. */
typedef struct
{
Elf32_Half si_boundto; /* Direct bindings, symbol bound to */
Elf32_Half si_flags; /* Per symbol flags */
} Elf32_Syminfo;
typedef struct
{
Elf64_Half si_boundto; /* Direct bindings, symbol bound to */
Elf64_Half si_flags; /* Per symbol flags */
} Elf64_Syminfo;
/* Possible values for si_boundto. */
#define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */
#define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */
#define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */
/* Possible bitmasks for si_flags. */
#define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */
#define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */
#define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */
#define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy
loaded */
/* Syminfo version values. */
#define SYMINFO_NONE 0
#define SYMINFO_CURRENT 1
#define SYMINFO_NUM 2
/* Program segment header. */
typedef struct
{
Elf32_Word p_type; /* Segment type */
Elf32_Off p_offset; /* Segment file offset */
Elf32_Addr p_vaddr; /* Segment virtual address */
Elf32_Addr p_paddr; /* Segment physical address */
Elf32_Word p_filesz; /* Segment size in file */
Elf32_Word p_memsz; /* Segment size in memory */
Elf32_Word p_flags; /* Segment flags */
Elf32_Word p_align; /* Segment alignment */
} Elf32_Phdr;
typedef struct
{
Elf64_Word p_type; /* Segment type */
Elf64_Word p_flags; /* Segment flags */
Elf64_Off p_offset; /* Segment file offset */
Elf64_Addr p_vaddr; /* Segment virtual address */
Elf64_Addr p_paddr; /* Segment physical address */
Elf64_Xword p_filesz; /* Segment size in file */
Elf64_Xword p_memsz; /* Segment size in memory */
Elf64_Xword p_align; /* Segment alignment */
} Elf64_Phdr;
/* Legal values for p_type (segment type). */
#define PT_INTERP 3 /* Program interpreter */
#define PT_NOTE 4 /* Auxiliary information */
#define PT_SHLIB 5 /* Reserved */
#define PT_PHDR 6 /* Entry for header table itself */
#define PT_NUM 7 /* Number of defined types. */
#define PT_LOOS 0x60000000 /* Start of OS-specific */
#define PT_HIOS 0x6fffffff /* End of OS-specific */
#define PT_LOPROC 0x70000000 /* Start of processor-specific */
#define PT_HIPROC 0x7fffffff /* End of processor-specific */
/* Legal values for p_flags (segment flags). */
#define PF_X (1 << 0) /* Segment is executable */
#define PF_W (1 << 1) /* Segment is writable */
#define PF_R (1 << 2) /* Segment is readable */
#define PF_MASKPROC 0xf0000000 /* Processor-specific */
/* Legal values for note segment descriptor types for core files. */
#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */
#define NT_FPREGSET 2 /* Contains copy of fpregset struct */
built these entries will need to be adjusted. */
#define DT_ADDRRNGLO 0x6ffffe00
#define DT_SYMINFO 0x6ffffeff /* syminfo table */
#define DT_ADDRRNGHI 0x6ffffeff
/* The versioning entry types. The next are defined as part of the
GNU extension. */
#define DT_VERSYM 0x6ffffff0
/* These were chosen by Sun. */
#define DT_FLAGS_1 0x6ffffffb /* State flags, see DF_1_* below. */
#define DT_VERDEF 0x6ffffffc /* Address of version definition
table */
#define DT_VERDEFNUM 0x6ffffffd /* Number of version definitions */
#define DT_VERNEED 0x6ffffffe /* Address of table with needed
versions */
#define DT_VERNEEDNUM 0x6fffffff /* Number of needed versions */
#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */
#define DT_VERSIONTAGNUM 16
/* Sun added these machine-independent extensions in the "processor-specific"
range. Be compatible. */
#define DT_AUXILIARY 0x7ffffffd /* Shared object to load before self */
#define DT_FILTER 0x7fffffff /* Shared object to get values from */
#define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1)
#define DT_EXTRANUM 3
/* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1
entry in the dynamic section. */
#define DF_1_NOW 0x00000001 /* Set RTLD_NOW for this object. */
#define DF_1_GLOBAL 0x00000002 /* Set RTLD_GLOBAL for this object. */
#define DF_1_GROUP 0x00000004 /* Set RTLD_GROUP for this object. */
#define DF_1_NODELETE 0x00000008 /* Set RTLD_NODELETE for this object.*/
#define DF_1_LOADFLTR 0x00000010 /* Trigger filtee loading at runtime.*/
#define DF_1_INITFIRST 0x00000020 /* Set RTLD_INITFIRST for this object*/
#define DF_1_NOOPEN 0x00000040 /* Set RTLD_NOOPEN for this object. */
/* Version definition sections. */
typedef struct
{
Elf32_Half vd_version; /* Version revision */
Elf32_Half vd_flags; /* Version information */
Elf32_Half vd_ndx; /* Version Index */
Elf32_Half vd_cnt; /* Number of associated aux entries */
Elf32_Word vd_hash; /* Version name hash value */
Elf32_Word vd_aux; /* Offset in bytes to verdaux array */
Elf32_Word vd_next; /* Offset in bytes to next verdef
entry */
} Elf32_Verdef;
typedef struct
{
Elf64_Half vd_version; /* Version revision */
Elf64_Half vd_flags; /* Version information */
Elf64_Half vd_ndx; /* Version Index */
Elf64_Half vd_cnt; /* Number of associated aux entries */
Elf64_Word vd_hash; /* Version name hash value */
Elf64_Word vd_aux; /* Offset in bytes to verdaux array */
Elf64_Word vd_next; /* Offset in bytes to next verdef
entry */
} Elf64_Verdef;
/* Legal values for vd_version (version revision). */
#define VER_DEF_NONE 0 /* No version */
#define VER_DEF_CURRENT 1 /* Current version */
#define VER_DEF_NUM 2 /* Given version number */
/* Legal values for vd_flags (version information flags). */
#define VER_FLG_BASE 0x1 /* Version definition of file itself */
#define VER_FLG_WEAK 0x2 /* Weak version identifier */
/* Auxialiary version information. */
typedef struct
{
Elf32_Word vda_name; /* Version or dependency names */
Elf32_Word vda_next; /* Offset in bytes to next verdaux
entry */
/* Legal values for vn_version (version revision). */
#define VER_NEED_NONE 0 /* No version */
#define VER_NEED_CURRENT 1 /* Current version */
#define VER_NEED_NUM 2 /* Given version number */
/* Auxiliary needed version information. */
typedef struct
{
Elf32_Word vna_hash; /* Hash value of dependency name */
Elf32_Half vna_flags; /* Dependency specific information */
Elf32_Half vna_other; /* Unused */
Elf32_Word vna_name; /* Dependency name string offset */
Elf32_Word vna_next; /* Offset in bytes to next vernaux
entry */
} Elf32_Vernaux;
typedef struct
{
Elf64_Word vna_hash; /* Hash value of dependency name */
Elf64_Half vna_flags; /* Dependency specific information */
Elf64_Half vna_other; /* Unused */
Elf64_Word vna_name; /* Dependency name string offset */
Elf64_Word vna_next; /* Offset in bytes to next vernaux
entry */
} Elf64_Vernaux;
/* Legal values for vna_flags. */
#define VER_FLG_WEAK 0x2 /* Weak version identifier */
/* Auxiliary vector. */
/* This vector is normally only used by the program interpreter. The
usual definition in an ABI supplement uses the name auxv_t. The
vector is not usually defined in a standard <elf.h> file, but it
can't hurt. We rename it to avoid conflicts. The sizes of these
types are an arrangement between the exec server and the program
#define R_386_GOTPC 10 /* 32 bit PC relative offset to GOT */
/* Keep this the last entry. */
#define R_386_NUM 11
/* TCC-specific 16-bit relocs. */
#define R_386_16 12 /* Direct 16 bit */
#define R_386_PC16 13 /* PC relative 16 bit */
/* SUN SPARC specific definitions. */
/* Values for Elf64_Ehdr.e_flags. */
#define EF_SPARCV9_MM 3
#define EF_SPARCV9_TSO 0
#define EF_SPARCV9_PSO 1
#define EF_SPARCV9_RMO 2
#define EF_SPARC_EXT_MASK 0xFFFF00
#define EF_SPARC_SUN_US1 0x000200
#define EF_SPARC_HAL_R1 0x000400
/* SPARC relocs. */
/* Bits present in AT_HWCAP, primarily for Sparc32. */
#define HWCAP_SPARC_FLUSH 1 /* The cpu supports flush insn. */
#define HWCAP_SPARC_STBAR 2
#define HWCAP_SPARC_SWAP 4
#define HWCAP_SPARC_MULDIV 8
#define HWCAP_SPARC_V9 16 /* The cpu is v9, so v8plus is ok. */
/* MIPS R3000 specific definitions. */
/* Legal values for e_flags field of Elf32_Ehdr. */
#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */
#define EF_MIPS_PIC 2 /* Contains PIC code */
#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */
#define EF_MIPS_XGOT 8
#define EF_MIPS_64BIT_WHIRL 16
#define EF_MIPS_ABI2 32
#define EF_MIPS_ABI_ON32 64
#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */
#define SHT_MIPS_EVENTS 0x70000021 /* Event section. */
#define SHT_MIPS_TRANSLATE 0x70000022
#define SHT_MIPS_PIXIE 0x70000023
#define SHT_MIPS_XLATE 0x70000024
#define SHT_MIPS_XLATE_DEBUG 0x70000025
#define SHT_MIPS_WHIRL 0x70000026
#define SHT_MIPS_EH_REGION 0x70000027
#define SHT_MIPS_XLATE_OLD 0x70000028
#define SHT_MIPS_PDR_EXCEPTION 0x70000029
/* Legal values for sh_flags field of Elf32_Shdr. */
#define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */
#define SHF_MIPS_MERGE 0x20000000
#define SHF_MIPS_ADDR 0x40000000
#define SHF_MIPS_STRINGS 0x80000000
#define SHF_MIPS_NOSTRIP 0x08000000
#define SHF_MIPS_LOCAL 0x04000000
#define SHF_MIPS_NAMES 0x02000000
#define SHF_MIPS_NODUPE 0x01000000
#define OHW_R5KCVTL 0x8 /* R5000 cvt.[ds].l bug. clean=1. */
#define OPAD_PREFIX 0x1
#define OPAD_POSTFIX 0x2
#define OPAD_SYMBOL 0x4
/* Entry found in `.options' section. */
typedef struct
{
Elf32_Word hwp_flags1; /* Extra flags. */
Elf32_Word hwp_flags2; /* Extra flags. */
} Elf_Options_Hw;
/* Masks for `info' in ElfOptions for ODK_HWAND and ODK_HWOR entries. */
#define OHWA0_R4KEOP_CHECKED 0x00000001
#define OHWA1_R4KEOP_CLEAN 0x00000002
/* MIPS relocs. */
#define R_MIPS_NONE 0 /* No reloc */
function stored in GOT. */
#define DT_MIPS_PERF_SUFFIX 0x7000002e /* Default suffix of dso to be added
by rld on dlopen() calls. */
#define DT_MIPS_COMPACT_SIZE 0x7000002f /* (O32)Size of compact rel section. */
#define DT_MIPS_GP_VALUE 0x70000030 /* GP value for aux GOTs. */
#define DT_MIPS_AUX_DYNAMIC 0x70000031 /* Address of aux .dynamic. */
#define DT_MIPS_NUM 0x32
/* Legal values for DT_MIPS_FLAGS Elf32_Dyn entry. */
#define RHF_NONE 0 /* No flags */
#define RHF_QUICKSTART (1 << 0) /* Use quickstart */
#define RHF_NOTPOT (1 << 1) /* Hash size not power of 2 */
#define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) /* Ignore LD_LIBRARY_PATH */
#define RHF_NO_MOVE (1 << 3)
#define RHF_SGI_ONLY (1 << 4)
#define RHF_GUARANTEE_INIT (1 << 5)
#define RHF_DELTA_C_PLUS_PLUS (1 << 6)
#define RHF_GUARANTEE_START_INIT (1 << 7)
#define RHF_PIXIE (1 << 8)
#define RHF_DEFAULT_DELAY_LOAD (1 << 9)
#define RHF_RLD_ORDER_SAFE (1 << 14)
/* Entries found in sections of type SHT_MIPS_LIBLIST. */
typedef struct
{
Elf32_Word l_name; /* Name (string table index) */
Elf32_Word l_time_stamp; /* Timestamp */
Elf32_Word l_checksum; /* Checksum */
Elf32_Word l_version; /* Interface version */
Elf32_Word l_flags; /* Flags */
} Elf32_Lib;
typedef struct
{
Elf64_Word l_name; /* Name (string table index) */
Elf64_Word l_time_stamp; /* Timestamp */
Elf64_Word l_checksum; /* Checksum */
Elf64_Word l_version; /* Interface version */
Elf64_Word l_flags; /* Flags */
} Elf64_Lib;
/* Legal values for l_flags. */
#define LL_NONE 0
#define LL_EXACT_MATCH (1 << 0) /* Require exact match */
#define LL_IGNORE_INT_VER (1 << 1) /* Ignore interface version */
#define LL_REQUIRE_MINOR (1 << 2)
#define LL_EXPORTS (1 << 3)
#define LL_DELAY_LOAD (1 << 4)
#define LL_DELTA (1 << 5)
/* Entries found in sections of type SHT_MIPS_CONFLICT. */
typedef Elf32_Addr Elf32_Conflict;
/* HPPA specific definitions. */
/* Legal values for e_flags field of Elf32_Ehdr. */
#define EF_PARISC_TRAPNL 1 /* Trap nil pointer dereference. */
#define EF_PARISC_EXT 2 /* Program uses arch. extensions. */
#define EF_PARISC_ARCH 0xffff0000 /* Architecture version. */
/* Defined values are:
0x020b PA-RISC 1.0 big-endian
0x0210 PA-RISC 1.1 big-endian
0x028b PA-RISC 1.0 little-endian
0x0290 PA-RISC 1.1 little-endian
*/
#define SHT_PARISC_ARCH 0x70000001 /* Architecture extensions. */
#define SHT_PARISC_GLOBAL 0x70000002 /* Definition of $global$. */
#define SHT_PARISC_MILLI 0x70000003 /* Millicode routines. */
#define SHT_PARISC_UNWIND 0x70000004 /* Unwind information. */
#define SHT_PARISC_PLT 0x70000005 /* Procedure linkage table. */
#define SHT_PARISC_SDATA 0x70000006 /* Short initialized data. */
#define SHT_PARISC_SBSS 0x70000007 /* Short uninitialized data. */
#define SHT_PARISC_SYMEXTN 0x70000008 /* Argument/relocation info. */
#define SHT_PARISC_STUBS 0x70000009 /* Linker stubs. */
/* Legal values for sh_flags field of Elf32_Shdr. */
#define SHF_PARISC_GLOBAL 0x10000000 /* Section defines dp. */
#define SHF_PARISC_SHORT 0x20000000 /* Section with short addressing. */
/* Legal values for ST_TYPE subfield of st_info (symbol type). */
#define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */
/* HPPA relocs. */
#define R_PARISC_DLTIND21L 15 /* DLT-relative indirect, left
21 bits. */
#define R_PARISC_DLTIND14R 16 /* DLT-relative indirect, right
14 bits. */
#define R_PARISC_DLTIND14F 17 /* DLT-relative indirect, must fit
int 14 bits. */
#define R_PARISC_PLABEL32 18 /* Direct 32-bit reference to proc. */
/* Alpha specific definitions. */
/* Legal values for e_flags field of Elf64_Ehdr. */
#define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */
#define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */
/* Legal values for sh_type field of Elf64_Shdr. */
/* These two are primerily concerned with ECOFF debugging info. */
#define SHT_ALPHA_DEBUG 0x70000001
#define SHT_ALPHA_REGINFO 0x70000002
/* Legal values for sh_flags field of Elf64_Shdr. */
#define SHF_ALPHA_GPREL 0x10000000
/* Legal values for st_other field of Elf64_Sym. */
#define STO_ALPHA_NOPV 0x80 /* No PV required. */
#define STO_ALPHA_STD_GPLOAD 0x88 /* PV only used for initial ldgp. */
/* Alpha relocs. */
#define R_ALPHA_NONE 0 /* No reloc */
#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */
#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */
/* This is a phony reloc to handle any old fashioned TOC16 references
that may still be in object files. */
#define R_PPC_TOC16 255
/* ARM specific declarations */
/* Processor specific flags for the ELF header e_flags field. */
#define EF_ARM_RELEXEC 0x01
#define EF_ARM_HASENTRY 0x02
#define EF_ARM_INTERWORK 0x04
#define EF_ARM_APCS_26 0x08
#define EF_ARM_APCS_FLOAT 0x10
#define EF_ARM_PIC 0x20
#define EF_ALIGN8 0x40 /* 8-bit structure alignment is in use */
#define EF_NEW_ABI 0x80
#define EF_OLD_ABI 0x100
/* Additional symbol types for Thumb */
#define STT_ARM_TFUNC 0xd
/* ARM-specific values for sh_flags */
#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */
#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined
in the input to a link step */
/* ARM-specific program header flags */
#define PF_ARM_SB 0x10000000 /* Segment contains the location
addressed by the static base */
/* ARM relocs. */
#define R_ARM_NONE 0 /* No reloc */
#define R_ARM_PC24 1 /* PC relative 26 bit branch */
#define R_ARM_ABS32 2 /* Direct 32 bit */
#define R_ARM_REL32 3 /* PC relative 32 bit */
#define R_ARM_PC13 4
#define R_ARM_ABS16 5 /* Direct 16 bit */
src/i386-gen.c view on Meta::CPAN
}
}
/* generate a test. set 'inv' to invert test. Stack entry is popped */
ST_FUNC int gtst(int inv, int t)
{
int v, *p;
v = vtop->r & VT_VALMASK;
if (v == VT_CMP) {
/* fast case : can jump directly since flags are set */
g(0x0f);
t = psym((vtop->c.i - 16) ^ inv, t);
} else if (v == VT_JMP || v == VT_JMPI) {
/* && or || optimization */
if ((v & 1) == inv) {
/* insert vtop->c jump list in t */
p = &vtop->c.i;
while (*p != 0)
p = (int *)(cur_text_section->data + *p);
*p = t;
src/libtcc.c view on Meta::CPAN
}
}
cstr_ccat(&str, '\0');
dynarray_add(p_ary, p_nb_ary, str.data);
in = p+1;
} while (*p);
}
/********************************************************/
ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags)
{
Section *sec;
sec = tcc_mallocz(sizeof(Section) + strlen(name));
strcpy(sec->name, name);
sec->sh_type = sh_type;
sec->sh_flags = sh_flags;
switch(sh_type) {
case SHT_HASH:
case SHT_REL:
case SHT_RELA:
case SHT_DYNSYM:
case SHT_SYMTAB:
case SHT_DYNAMIC:
sec->sh_addralign = 4;
break;
case SHT_STRTAB:
sec->sh_addralign = 1;
break;
default:
sec->sh_addralign = 32; /* default conservative alignment */
break;
}
if (sh_flags & SHF_PRIVATE) {
dynarray_add((void ***)&s1->priv_sections, &s1->nb_priv_sections, sec);
} else {
sec->sh_num = s1->nb_sections;
dynarray_add((void ***)&s1->sections, &s1->nb_sections, sec);
}
return sec;
}
static void free_section(Section *s)
src/libtcc.c view on Meta::CPAN
#endif
define_start = define_stack;
nocode_wanted = 1;
if (setjmp(s1->error_jmp_buf) == 0) {
s1->nb_errors = 0;
s1->error_set_jmp_enabled = 1;
ch = file->buf_ptr[0];
tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF;
parse_flags = PARSE_FLAG_PREPROCESS | PARSE_FLAG_TOK_NUM;
pvtop = vtop;
next();
decl(VT_CONST);
if (tok != TOK_EOF)
expect("declaration");
if (pvtop != vtop)
tcc_warning("internal compiler error: vstack leak? (%d)", vtop - pvtop);
/* end of translation unit info */
if (s1->do_debug) {
src/libtcc.c view on Meta::CPAN
tcc_split_path(s, (void ***)&s->include_paths, &s->nb_include_paths, pathname);
return 0;
}
LIBTCCAPI int tcc_add_sysinclude_path(TCCState *s, const char *pathname)
{
tcc_split_path(s, (void ***)&s->sysinclude_paths, &s->nb_sysinclude_paths, pathname);
return 0;
}
ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags)
{
const char *ext;
ElfW(Ehdr) ehdr;
int fd, ret, size;
/* find source file type with extension */
ext = tcc_fileextension(filename);
if (ext[0])
ext++;
#ifdef CONFIG_TCC_ASM
/* if .S file, define __ASSEMBLER__ like gcc does */
if (!strcmp(ext, "S"))
tcc_define_symbol(s1, "__ASSEMBLER__", NULL);
#endif
/* open the file */
ret = tcc_open(s1, filename);
if (ret < 0) {
if (flags & AFF_PRINT_ERROR)
tcc_error_noabort("file '%s' not found", filename);
return ret;
}
/* update target deps */
dynarray_add((void ***)&s1->target_deps, &s1->nb_target_deps,
tcc_strdup(filename));
if (flags & AFF_PREPROCESS) {
ret = tcc_preprocess(s1);
goto the_end;
}
if (!ext[0] || !PATHCMP(ext, "c")) {
/* C file assumed */
ret = tcc_compile(s1);
goto the_end;
}
src/libtcc.c view on Meta::CPAN
if (ehdr.e_type == ET_DYN) {
if (s1->output_type == TCC_OUTPUT_MEMORY) {
#ifdef TCC_IS_NATIVE
void *h;
h = dlopen(filename, RTLD_GLOBAL | RTLD_LAZY);
if (h)
#endif
ret = 0;
} else {
ret = tcc_load_dll(s1, fd, filename,
(flags & AFF_REFERENCED_DLL) != 0);
}
goto the_end;
}
#endif
tcc_error_noabort("unrecognized ELF file");
goto the_end;
}
if (memcmp((char *)&ehdr, ARMAG, 8) == 0) {
file->line_num = 0; /* do not display line number if error */
src/libtcc.c view on Meta::CPAN
return tcc_add_file_internal(s, filename, AFF_PRINT_ERROR);
}
LIBTCCAPI int tcc_add_library_path(TCCState *s, const char *pathname)
{
tcc_split_path(s, (void ***)&s->library_paths, &s->nb_library_paths, pathname);
return 0;
}
static int tcc_add_library_internal(TCCState *s, const char *fmt,
const char *filename, int flags, char **paths, int nb_paths)
{
char buf[1024];
int i;
for(i = 0; i < nb_paths; i++) {
snprintf(buf, sizeof(buf), fmt, paths[i], filename);
if (tcc_add_file_internal(s, buf, flags) == 0)
return 0;
}
return -1;
}
/* find and load a dll. Return non zero if not found */
/* XXX: add '-rpath' option support ? */
ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags)
{
return tcc_add_library_internal(s, "%s/%s", filename, flags,
s->library_paths, s->nb_library_paths);
}
ST_FUNC int tcc_add_crt(TCCState *s, const char *filename)
{
if (-1 == tcc_add_library_internal(s, "%s/%s",
filename, 0, s->crt_paths, s->nb_crt_paths))
tcc_error_noabort("file '%s' not found", filename);
return 0;
}
src/libtcc.c view on Meta::CPAN
{
tcc_free(s->tcc_lib_path);
s->tcc_lib_path = tcc_strdup(path);
}
#define WD_ALL 0x0001 /* warning is activated when using -Wall */
#define FD_INVERT 0x0002 /* invert value before storing */
typedef struct FlagDef {
uint16_t offset;
uint16_t flags;
const char *name;
} FlagDef;
static const FlagDef warning_defs[] = {
{ offsetof(TCCState, warn_unsupported), 0, "unsupported" },
{ offsetof(TCCState, warn_write_strings), 0, "write-strings" },
{ offsetof(TCCState, warn_error), 0, "error" },
{ offsetof(TCCState, warn_implicit_function_declaration), WD_ALL,
"implicit-function-declaration" },
};
ST_FUNC int set_flag(TCCState *s, const FlagDef *flags, int nb_flags,
const char *name, int value)
{
int i;
const FlagDef *p;
const char *r;
r = name;
if (r[0] == 'n' && r[1] == 'o' && r[2] == '-') {
r += 3;
value = !value;
}
for(i = 0, p = flags; i < nb_flags; i++, p++) {
if (!strcmp(r, p->name))
goto found;
}
return -1;
found:
if (p->flags & FD_INVERT)
value = !value;
*(int *)((uint8_t *)s + p->offset) = value;
return 0;
}
/* set/reset a warning */
static int tcc_set_warning(TCCState *s, const char *warning_name, int value)
{
int i;
const FlagDef *p;
if (!strcmp(warning_name, "all")) {
for(i = 0, p = warning_defs; i < countof(warning_defs); i++, p++) {
if (p->flags & WD_ALL)
*(int *)((uint8_t *)s + p->offset) = 1;
}
return 0;
} else {
return set_flag(s, warning_defs, countof(warning_defs),
warning_name, value);
}
}
static const FlagDef flag_defs[] = {
{ offsetof(TCCState, char_is_unsigned), 0, "unsigned-char" },
{ offsetof(TCCState, char_is_unsigned), FD_INVERT, "signed-char" },
{ offsetof(TCCState, nocommon), FD_INVERT, "common" },
{ offsetof(TCCState, leading_underscore), 0, "leading-underscore" },
};
/* set/reset a flag */
static int tcc_set_flag(TCCState *s, const char *flag_name, int value)
{
return set_flag(s, flag_defs, countof(flag_defs),
flag_name, value);
}
static int strstart(const char *val, const char **str)
{
const char *p, *q;
p = *str;
q = val;
while (*q) {
if (*p != *q)
src/libtcc.c view on Meta::CPAN
tcc_error("unsupported linker option '%s'", buf);
}
option = skip_linker_arg(&p);
}
return 0;
}
typedef struct TCCOption {
const char *name;
uint16_t index;
uint16_t flags;
} TCCOption;
enum {
TCC_OPTION_HELP,
TCC_OPTION_I,
TCC_OPTION_D,
TCC_OPTION_U,
TCC_OPTION_L,
TCC_OPTION_B,
TCC_OPTION_l,
src/libtcc.c view on Meta::CPAN
/* find option in table */
for(popt = tcc_options; ; ++popt) {
const char *p1 = popt->name;
const char *r1 = r + 1;
if (p1 == NULL)
tcc_error("invalid option -- '%s'", r);
if (!strstart(p1, &r1))
continue;
optarg = r1;
if (popt->flags & TCC_OPTION_HAS_ARG) {
if (*r1 == '\0' && !(popt->flags & TCC_OPTION_NOSEP)) {
if (optind >= argc)
tcc_error("argument to '%s' is missing", r);
optarg = argv[optind++];
}
} else if (*r1 != '\0')
continue;
break;
}
switch(popt->index) {
src/libtcc.c view on Meta::CPAN
tcc_set_options(s, optarg);
run = 1;
break;
case TCC_OPTION_norunsrc:
norunsrc = 1;
break;
case TCC_OPTION_v:
do ++s->verbose; while (*optarg++ == 'v');
break;
case TCC_OPTION_f:
if (tcc_set_flag(s, optarg, 1) < 0 && s->warn_unsupported)
goto unsupported_option;
break;
case TCC_OPTION_W:
if (tcc_set_warning(s, optarg, 1) < 0 &&
s->warn_unsupported)
goto unsupported_option;
break;
case TCC_OPTION_w:
s->warn_none = 1;
break;
src/stab.def view on Meta::CPAN
/* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */
__define_stab (N_NOMAP, 0x34, "NOMAP")
/* New stab from Solaris. I don't know what it means, but it
don't seem to contain useful information. */
__define_stab (N_OBJ, 0x38, "OBJ")
/* New stab from Solaris. I don't know what it means, but it
don't seem to contain useful information. Possibly related to the
optimization flags used in this module. */
__define_stab (N_OPT, 0x3c, "OPT")
/* Register variable. Value is number of register. */
__define_stab (N_RSYM, 0x40, "RSYM")
/* Modula-2 compilation unit. Can someone say what info it contains? */
__define_stab (N_M2C, 0x42, "M2C")
/* Line number in text segment. Desc is the line number;
value is corresponding address. */
src/tcc-doc.texi view on Meta::CPAN
@item -Dsym[=val]
Define preprocessor symbol @samp{sym} to
val. If val is not present, its value is @samp{1}. Function-like macros can
also be defined: @option{-DF(a)=a+1}
@item -Usym
Undefine preprocessor symbol @samp{sym}.
@end table
Compilation flags:
Note: each of the following warning options has a negative form beginning with
@option{-fno-}.
@table @option
@item -funsigned-char
Let the @code{char} type be unsigned.
@item -fsigned-char
Let the @code{char} type be signed.
src/tcc-doc.texi view on Meta::CPAN
#define VT_VOLATILE 0x1000 /* volatile modifier */
#define VT_SIGNED 0x2000 /* signed type */
#define VT_STRUCT_SHIFT 18 /* structure/enum name shift (14 bits left) */
@end example
When a reference to another type is needed (for pointers, functions and
structures), the @code{32 - VT_STRUCT_SHIFT} high order bits are used to
store an identifier reference.
The @code{VT_UNSIGNED} flag can be set for chars, shorts, ints and long
longs.
Arrays are considered as pointers @code{VT_PTR} with the flag
@code{VT_ARRAY} set. Variable length arrays are considered as special
arrays and have flag @code{VT_VLA} set instead of @code{VT_ARRAY}.
The @code{VT_BITFIELD} flag can be set for chars, shorts, ints and long
longs. If it is set, then the bitfield position is stored from bits
VT_STRUCT_SHIFT to VT_STRUCT_SHIFT + 5 and the bit field size is stored
from bits VT_STRUCT_SHIFT + 6 to VT_STRUCT_SHIFT + 11.
@code{VT_LONG} is never used except during parsing.
During parsing, the storage of an object is also stored in the type
integer:
@example
src/tcc-doc.texi view on Meta::CPAN
@subsection The value stack
@cindex value stack, introduction
When an expression is parsed, its value is pushed on the value stack
(@var{vstack}). The top of the value stack is @var{vtop}. Each value
stack entry is the structure @code{SValue}.
@code{SValue.t} is the type. @code{SValue.r} indicates how the value is
currently stored in the generated code. It is usually a CPU register
index (@code{REG_xxx} constants), but additional values and flags are
defined:
@example
#define VT_CONST 0x00f0
#define VT_LLOCAL 0x00f1
#define VT_LOCAL 0x00f2
#define VT_CMP 0x00f3
#define VT_JMP 0x00f4
#define VT_JMPI 0x00f5
#define VT_LVAL 0x0100
src/tcc-doc.texi view on Meta::CPAN
@item VT_CONST
indicates that the value is a constant. It is stored in the union
@code{SValue.c}, depending on its type.
@item VT_LOCAL
indicates a local variable pointer at offset @code{SValue.c.i} in the
stack.
@item VT_CMP
indicates that the value is actually stored in the CPU flags (i.e. the
value is the consequence of a test). The value is either 0 or 1. The
actual CPU flags used is indicated in @code{SValue.c.i}.
If any code is generated which destroys the CPU flags, this value MUST be
put in a normal register.
@item VT_JMP
@itemx VT_JMPI
indicates that the value is the consequence of a conditional jump. For VT_JMP,
it is 1 if the jump is taken, 0 otherwise. For VT_JMPI it is inverted.
These values are used to compile the @code{||} and @code{&&} logical
operators.
If any code is generated, this value MUST be put in a normal
register. Otherwise, the generated code won't be executed if the jump is
taken.
@item VT_LVAL
is a flag indicating that the value is actually an lvalue (left value of
an assignment). It means that the value stored is actually a pointer to
the wanted value.
Understanding the use @code{VT_LVAL} is very important if you want to
understand how TCC works.
@item VT_LVAL_BYTE
@itemx VT_LVAL_SHORT
@itemx VT_LVAL_UNSIGNED
if the lvalue has an integer type, then these flags give its real
type. The type alone is not enough in case of cast optimisations.
@item VT_LLOCAL
is a saved lvalue on the stack. @code{VT_LLOCAL} should be eliminated
ASAP because its semantics are rather complicated.
@item VT_MUSTCAST
indicates that a cast to the value type must be performed if the value
is used (lazy casting).
src/tcc-doc.texi view on Meta::CPAN
@itemx VT_BOUNDED
are only used for optional bound checking.
@end table
@subsection Manipulating the value stack
@cindex value stack
@code{vsetc()} and @code{vset()} pushes a new value on the value
stack. If the previous @var{vtop} was stored in a very unsafe place(for
example in the CPU flags), then some code is generated to put the
previous @var{vtop} in a safe storage.
@code{vpop()} pops @var{vtop}. In some cases, it also generates cleanup
code (for example if stacked floating point registers are used as on
x86).
The @code{gv(rc)} function generates code to evaluate @var{vtop} (the
top value of the stack) into registers. @var{rc} selects in which
register class the value should be put. @code{gv()} is the @emph{most
important function} of the code generator.
src/tcc-doc.texi view on Meta::CPAN
@item gen_bounded_ptr_deref()
are only used for bounds checking.
@end table
@section Optimizations done
@cindex optimizations
@cindex constant propagation
@cindex strength reduction
@cindex comparison operators
@cindex caching processor flags
@cindex flags, caching
@cindex jump optimization
Constant propagation is done for all operations. Multiplications and
divisions are optimized to shifts when appropriate. Comparison
operators are optimized by maintaining a special cache for the
processor flags. &&, || and ! are optimized by maintaining a special
'jump target' value. No other jump optimization is currently performed
because it would require to store the code in a more abstract fashion.
@unnumbered Concept Index
@printindex cp
@bye
@c Local variables:
@c fill-column: 78
static void help(void)
{
printf("tcc version " TCC_VERSION " - Tiny C Compiler - Copyright (C) 2001-2006 Fabrice Bellard\n"
"Usage: tcc [options...] [-o outfile] [-c] infile(s)...\n"
" tcc [options...] -run infile [arguments...]\n"
"General options:\n"
" -c compile only - generate an object file\n"
" -o outfile set output filename\n"
" -run run compiled source\n"
" -fflag set or reset (with 'no-' prefix) 'flag' (see man page)\n"
" -Wwarning set or reset (with 'no-' prefix) 'warning' (see man page)\n"
" -w disable all warnings\n"
" -v show version\n"
" -vv show included files (as sole argument: show search paths)\n"
" -dumpversion\n"
" -bench show compilation statistics\n"
"Preprocessor options:\n"
" -E preprocess only\n"
" -Idir add include path 'dir'\n"
" -Dsym[=val] define 'sym' with value 'val'\n"
long long ll;
unsigned long long ull;
struct CString *cstr;
void *ptr;
int tab[LDOUBLE_SIZE/4];
} CValue;
/* value on stack */
typedef struct SValue {
CType type; /* type */
unsigned short r; /* register + flags */
unsigned short r2; /* second register, used for 'long long'
type. If not used, set to VT_CONST */
CValue c; /* constant, if VT_CONST */
struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST) */
} SValue;
/* symbol management */
typedef struct Sym {
int v; /* symbol token */
char *asm_label; /* associated asm label */
union {
struct Sym *next; /* next related symbol */
long jnext; /* next jump label */
};
struct Sym *prev; /* prev symbol in stack */
struct Sym *prev_tok; /* previous symbol for this token */
} Sym;
/* section definition */
/* XXX: use directly ELF structure for parameters ? */
/* special flag to indicate that the section should not be linked to
the other ones */
#define SHF_PRIVATE 0x80000000
/* special flag, too */
#define SECTION_ABS ((void *)1)
typedef struct Section {
unsigned long data_offset; /* current data offset */
unsigned char *data; /* section data */
unsigned long data_allocated; /* used for realloc() handling */
int sh_name; /* elf section name (only used during output) */
int sh_num; /* elf section number */
int sh_type; /* elf section type */
int sh_flags; /* elf section flags */
int sh_info; /* elf section info */
int sh_addralign; /* elf section alignment */
int sh_entsize; /* elf entry size */
unsigned long sh_size; /* section size (only used during output) */
addr_t sh_addr; /* address at which the section is relocated */
unsigned long sh_offset; /* file offset */
int nb_hashed_syms; /* used to resize the hash table */
struct Section *link; /* link to another section */
struct Section *reloc; /* corresponding section for relocation, if any */
struct Section *hash; /* hash table for symbols */
int do_bench; /* option -bench */
int gen_deps; /* option -MD */
char *deps_outfile; /* option -MF */
};
/* The current value can be: */
#define VT_VALMASK 0x003f /* mask for value location, register or: */
#define VT_CONST 0x0030 /* constant in vc (must be first non register value) */
#define VT_LLOCAL 0x0031 /* lvalue, offset on stack */
#define VT_LOCAL 0x0032 /* offset on stack */
#define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */
#define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */
#define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */
#define VT_REF 0x0040 /* value is pointer to structure rather than address */
#define VT_LVAL 0x0100 /* var is an lvalue */
#define VT_SYM 0x0200 /* a symbol value is added */
#define VT_MUSTCAST 0x0400 /* value must be casted to be correct (used for
char/short stored in integer registers) */
#define VT_MUSTBOUND 0x0800 /* bound checking must be done before
dereferencing value */
#define VT_BOUNDED 0x8000 /* value is bounded. The address of the
/* other utilities */
ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data);
ST_FUNC void dynarray_reset(void *pp, int *n);
ST_FUNC void cstr_ccat(CString *cstr, int ch);
ST_FUNC void cstr_cat(CString *cstr, const char *str);
ST_FUNC void cstr_wccat(CString *cstr, int ch);
ST_FUNC void cstr_new(CString *cstr);
ST_FUNC void cstr_free(CString *cstr);
ST_FUNC void cstr_reset(CString *cstr);
ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags);
ST_FUNC void section_realloc(Section *sec, unsigned long new_size);
ST_FUNC void *section_ptr_add(Section *sec, unsigned long size);
ST_FUNC void section_reserve(Section *sec, unsigned long size);
ST_FUNC Section *find_section(TCCState *s1, const char *name);
ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore);
ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size);
ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type);
ST_INLN void sym_free(Sym *sym);
ST_FUNC Sym *sym_push(int v, CType *type, int r, int c);
ST_FUNC void sym_pop(Sym **ptop, Sym *b);
ST_INLN Sym *struct_find(int v);
ST_INLN Sym *sym_find(int v);
ST_FUNC Sym *global_identifier_push(int v, int t, int c);
ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen);
ST_FUNC int tcc_open(TCCState *s1, const char *filename);
ST_FUNC void tcc_close(void);
ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags);
ST_FUNC int tcc_add_crt(TCCState *s, const char *filename);
ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags);
PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time);
PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv);
PUB_FUNC void tcc_set_environment(TCCState *s);
/* ------------ tccpp.c ------------ */
ST_DATA struct BufferedFile *file;
ST_DATA int ch, tok;
ST_DATA CValue tokc;
ST_DATA const int *macro_ptr;
ST_DATA int parse_flags;
ST_DATA int tok_flags;
ST_DATA CString tokcstr; /* current parsed string, if any */
/* display benchmark infos */
ST_DATA int total_lines;
ST_DATA int total_bytes;
ST_DATA int tok_ident;
ST_DATA TokenSym **table_ident;
#define TOK_FLAG_BOL 0x0001 /* beginning of line before */
#define TOK_FLAG_BOF 0x0002 /* beginning of file before */
ST_FUNC void restore_parse_state(ParseState *s);
ST_INLN void tok_str_new(TokenString *s);
ST_FUNC void tok_str_free(int *str);
ST_FUNC void tok_str_add(TokenString *s, int t);
ST_FUNC void tok_str_add_tok(TokenString *s);
ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg);
ST_FUNC void define_undef(Sym *s);
ST_INLN Sym *define_find(int v);
ST_FUNC void free_defines(Sym *b);
ST_FUNC Sym *label_find(int v);
ST_FUNC Sym *label_push(Sym **ptop, int v, int flags);
ST_FUNC void label_pop(Sym **ptop, Sym *slast);
ST_FUNC void parse_define(void);
ST_FUNC void preprocess(int is_bof);
ST_FUNC void next_nomacro(void);
ST_FUNC void next(void);
ST_INLN void unget_tok(int last_tok);
ST_FUNC void preprocess_init(TCCState *s1);
ST_FUNC void preprocess_new(void);
ST_FUNC int tcc_preprocess(TCCState *s1);
ST_FUNC void skip(int c);
#define ARMAG "!<arch>\012" /* For COFF and a.out archives */
typedef struct {
unsigned int n_strx; /* index into string table of name */
unsigned char n_type; /* type of symbol */
unsigned char n_other; /* misc info (usually empty) */
unsigned short n_desc; /* description field */
unsigned int n_value; /* value of symbol */
} Stab_Sym;
ST_FUNC Section *new_symtab(TCCState *s1, const char *symtab_name, int sh_type, int sh_flags, const char *strtab_name, const char *hash_name, int hash_sh_flags);
ST_FUNC int put_elf_str(Section *s, const char *sym);
ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name);
ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name);
ST_FUNC int find_elf_sym(Section *s, const char *name);
ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol);
ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value);
ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index);
ST_FUNC void put_stabn(int type, int other, int desc, int value);
#endif
/* ------------ tccrun.c ----------------- */
#ifdef TCC_IS_NATIVE
#ifdef CONFIG_TCC_STATIC
#define RTLD_LAZY 0x001
#define RTLD_NOW 0x002
#define RTLD_GLOBAL 0x100
#define RTLD_DEFAULT NULL
/* dummy function for profiling */
ST_FUNC void *dlopen(const char *filename, int flag);
ST_FUNC void dlclose(void *p);
ST_FUNC const char *dlerror(void);
ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
#elif !defined _WIN32
ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol);
#endif
#ifdef CONFIG_TCC_BACKTRACE
ST_DATA int rt_num_callers;
ST_DATA const char **rt_bound_error_msg;
src/tccasm.c view on Meta::CPAN
}
printf("size=%d nb=%d f0=%d f1=%d f2=%d f3=%d\n",
sizeof(asm_instrs), sizeof(asm_instrs) / sizeof(ASMInstr),
freq[0], freq[1], freq[2], freq[3]);
}
#endif
/* XXX: undefine C labels */
ch = file->buf_ptr[0];
tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF;
parse_flags = PARSE_FLAG_ASM_COMMENTS;
if (do_preprocess)
parse_flags |= PARSE_FLAG_PREPROCESS;
next();
for(;;) {
if (tok == TOK_EOF)
break;
parse_flags |= PARSE_FLAG_LINEFEED; /* XXX: suppress that hack */
redo:
if (tok == '#') {
/* horrible gas comment */
while (tok != TOK_LINEFEED)
next();
} else if (tok == '.') {
asm_parse_directive(s1);
} else if (tok == TOK_PPNUM) {
const char *p;
int n;
src/tccasm.c view on Meta::CPAN
asm_new_label1(s1, opcode, 0, SHN_ABS, n);
goto redo;
} else {
asm_opcode(s1, opcode);
}
}
/* end of line */
if (tok != ';' && tok != TOK_LINEFEED){
expect("end of line");
}
parse_flags &= ~PARSE_FLAG_LINEFEED; /* XXX: suppress that hack */
next();
}
asm_free_labels(s1);
return 0;
}
/* Assemble the current file */
ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess)
src/tccasm.c view on Meta::CPAN
}
/********************************************************************/
/* GCC inline asm support */
/* assemble the string 'str' in the current C compilation unit without
C preprocessing. NOTE: str is modified by modifying the '\0' at the
end */
static void tcc_assemble_inline(TCCState *s1, char *str, int len)
{
int saved_parse_flags;
const int *saved_macro_ptr;
saved_parse_flags = parse_flags;
saved_macro_ptr = macro_ptr;
tcc_open_bf(s1, ":asm:", len);
memcpy(file->buffer, str, len);
macro_ptr = NULL;
tcc_assemble_internal(s1, 0);
tcc_close();
parse_flags = saved_parse_flags;
macro_ptr = saved_macro_ptr;
}
/* find a constraint by its number or id (gcc 3 extended
syntax). return -1 if not found. Return in *pp in char after the
constraint */
ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands,
const char *name, const char **pp)
{
int index;
src/tcccoff.c view on Meta::CPAN
stext = FindSection(s1, ".text");
sdata = FindSection(s1, ".data");
sbss = FindSection(s1, ".bss");
nb_syms = symtab_section->data_offset / sizeof(Elf32_Sym);
coff_nb_syms = FindCoffSymbolIndex("XXXXXXXXXX1");
file_hdr.f_magic = COFF_C67_MAGIC; /* magic number */
file_hdr.f_timdat = 0; /* time & date stamp */
file_hdr.f_opthdr = sizeof(AOUTHDR); /* sizeof(optional hdr) */
file_hdr.f_flags = 0x1143; /* flags (copied from what code composer does) */
file_hdr.f_TargetID = 0x99; /* for C6x = 0x0099 */
o_filehdr.magic = 0x0108; /* see magic.h */
o_filehdr.vstamp = 0x0190; /* version stamp */
o_filehdr.tsize = stext->data_offset; /* text size in bytes, padded to FW bdry */
o_filehdr.dsize = sdata->data_offset; /* initialized data " " */
o_filehdr.bsize = sbss->data_offset; /* uninitialized data " " */
o_filehdr.entrypt = C67_main_entry_point; /* entry pt. */
o_filehdr.text_start = stext->sh_addr; /* base of text used for this file */
o_filehdr.data_start = sdata->sh_addr; /* base of data used for this file */
src/tcccoff.c view on Meta::CPAN
strcpy(coff_sec->s_name, tcc_sect->name); /* section name */
coff_sec->s_paddr = tcc_sect->sh_addr; /* physical address */
coff_sec->s_vaddr = tcc_sect->sh_addr; /* virtual address */
coff_sec->s_size = tcc_sect->data_offset; /* section size */
coff_sec->s_scnptr = 0; /* file ptr to raw data for section */
coff_sec->s_relptr = 0; /* file ptr to relocation */
coff_sec->s_lnnoptr = 0; /* file ptr to line numbers */
coff_sec->s_nreloc = 0; /* number of relocation entries */
coff_sec->s_flags = GetCoffFlags(coff_sec->s_name); /* flags */
coff_sec->s_reserved = 0; /* reserved byte */
coff_sec->s_page = 0; /* memory page id */
file_pointer += sizeof(SCNHDR);
}
}
file_hdr.f_nscns = NSectionsToOutput; /* number of sections */
// now loop through and determine file pointer locations
src/tccelf.c view on Meta::CPAN
char buf[256];
Section *sr;
ElfW_Rel *rel;
sr = s->reloc;
if (!sr) {
/* if no relocation section, create it */
snprintf(buf, sizeof(buf), REL_SECTION_FMT, s->name);
/* if the symtab is allocated, then we consider the relocation
are also */
sr = new_section(tcc_state, buf, SHT_RELX, symtab->sh_flags);
sr->sh_entsize = sizeof(ElfW_Rel);
sr->link = symtab;
sr->sh_info = s->sh_num;
s->reloc = sr;
}
rel = section_ptr_add(sr, sizeof(ElfW_Rel));
rel->r_offset = offset;
rel->r_info = ELFW(R_INFO)(symbol, type);
#ifdef TCC_TARGET_X86_64
rel->r_addend = 0;
src/tccelf.c view on Meta::CPAN
case R_X86_64_GOT32:
/* we load the got offset */
*(int *)ptr += s1->sym_attrs[sym_index].got_offset;
break;
#else
#error unsupported processor
#endif
}
}
/* if the relocation is allocated, we change its symbol table */
if (sr->sh_flags & SHF_ALLOC)
sr->link = s1->dynsym;
}
/* relocate relocation table in 'sr' */
static void relocate_rel(TCCState *s1, Section *sr)
{
Section *s;
ElfW_Rel *rel, *rel_end;
s = s1->sections[sr->sh_info];
src/tccelf.c view on Meta::CPAN
esym_index = s1->symtab_to_dynsym[sym_index];
if (esym_index)
count++;
break;
default:
break;
}
}
if (count) {
/* allocate the section */
sr->sh_flags |= SHF_ALLOC;
sr->sh_size = count * sizeof(ElfW_Rel);
}
return count;
}
static struct sym_attr *alloc_sym_attr(TCCState *s1, int index)
{
int n;
struct sym_attr *tab;
src/tccelf.c view on Meta::CPAN
#error unsupported CPU
#endif
default:
break;
}
}
}
}
ST_FUNC Section *new_symtab(TCCState *s1,
const char *symtab_name, int sh_type, int sh_flags,
const char *strtab_name,
const char *hash_name, int hash_sh_flags)
{
Section *symtab, *strtab, *hash;
int *ptr, nb_buckets;
symtab = new_section(s1, symtab_name, sh_type, sh_flags);
symtab->sh_entsize = sizeof(ElfW(Sym));
strtab = new_section(s1, strtab_name, SHT_STRTAB, sh_flags);
put_elf_str(strtab, "");
symtab->link = strtab;
put_elf_sym(symtab, 0, 0, 0, 0, 0, NULL);
nb_buckets = 1;
hash = new_section(s1, hash_name, SHT_HASH, hash_sh_flags);
hash->sh_entsize = sizeof(int);
symtab->hash = hash;
hash->link = symtab;
ptr = section_ptr_add(hash, (2 + nb_buckets + 1) * sizeof(int));
ptr[0] = nb_buckets;
ptr[1] = 1;
memset(ptr + 2, 0, (nb_buckets + 1) * sizeof(int));
return symtab;
}
src/tccelf.c view on Meta::CPAN
/* horrible new standard ldscript defines */
add_init_array_defines(s1, ".preinit_array");
add_init_array_defines(s1, ".init_array");
add_init_array_defines(s1, ".fini_array");
/* add start and stop symbols for sections whose name can be
expressed in C */
for(i = 1; i < s1->nb_sections; i++) {
s = s1->sections[i];
if (s->sh_type == SHT_PROGBITS &&
(s->sh_flags & SHF_ALLOC)) {
const char *p;
int ch;
/* check if section name can be expressed in C */
p = s->name;
for(;;) {
ch = *p;
if (!ch)
break;
if (!isid(ch) && !isnum(ch))
src/tccelf.c view on Meta::CPAN
static void tcc_output_binary(TCCState *s1, FILE *f,
const int *section_order)
{
Section *s;
int i, offset, size;
offset = 0;
for(i=1;i<s1->nb_sections;i++) {
s = s1->sections[section_order[i]];
if (s->sh_type != SHT_NOBITS &&
(s->sh_flags & SHF_ALLOC)) {
while (offset < s->sh_offset) {
fputc(0, f);
offset++;
}
size = s->sh_size;
fwrite(s->data, 1, size, f);
offset += size;
}
}
}
src/tccelf.c view on Meta::CPAN
/* allocate strings for section names and decide if an unallocated
section should be output */
/* NOTE: the strsec section comes last, so its size is also
correct ! */
for(i = 1; i < s1->nb_sections; i++) {
s = s1->sections[i];
s->sh_name = put_elf_str(strsec, s->name);
#if 0 /* gr */
printf("section: f=%08x t=%08x i=%08x %s %s\n",
s->sh_flags,
s->sh_type,
s->sh_info,
s->name,
s->reloc ? s->reloc->name : "n"
);
#endif
/* when generating a DLL, we include relocations but we may
patch them */
if (file_type == TCC_OUTPUT_DLL &&
s->sh_type == SHT_RELX &&
!(s->sh_flags & SHF_ALLOC)) {
/* //gr: avoid bogus relocs for empty (debug) sections */
if (s1->sections[s->sh_info]->sh_flags & SHF_ALLOC)
prepare_dynamic_rel(s1, s);
else if (s1->do_debug)
s->sh_size = s->data_offset;
} else if (s1->do_debug ||
file_type == TCC_OUTPUT_OBJ ||
(s->sh_flags & SHF_ALLOC) ||
i == (s1->nb_sections - 1)) {
/* we output all sections if debug or object file */
s->sh_size = s->data_offset;
}
}
/* allocate program segment headers */
phdr = tcc_mallocz(phnum * sizeof(ElfW(Phdr)));
if (s1->output_format == TCC_OUTPUT_FORMAT_ELF) {
src/tccelf.c view on Meta::CPAN
bss_addr = bss_size = 0;
#endif
/* leave one program header for the program interpreter */
ph = &phdr[0];
if (interp)
ph += 1 + HAVE_PHDR;
for(j = 0; j < 2; j++) {
ph->p_type = PT_LOAD;
if (j == 0)
ph->p_flags = PF_R | PF_X;
else
ph->p_flags = PF_R | PF_W;
ph->p_align = s1->section_align;
/* we do the following ordering: interp, symbol tables,
relocations, progbits, nobits */
/* XXX: do faster and simpler sorting */
for(k = 0; k < 5; k++) {
for(i = 1; i < s1->nb_sections; i++) {
s = s1->sections[i];
/* compute if section should be included */
if (j == 0) {
if ((s->sh_flags & (SHF_ALLOC | SHF_WRITE)) !=
SHF_ALLOC)
continue;
} else {
if ((s->sh_flags & (SHF_ALLOC | SHF_WRITE)) !=
(SHF_ALLOC | SHF_WRITE))
continue;
}
if (s == interp) {
if (k != 0)
continue;
} else if (s->sh_type == SHT_DYNSYM ||
s->sh_type == SHT_STRTAB ||
s->sh_type == SHT_HASH) {
if (k != 1)
src/tccelf.c view on Meta::CPAN
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
{
int len = phnum * sizeof(ElfW(Phdr));
ph->p_type = PT_PHDR;
ph->p_offset = sizeof(ElfW(Ehdr));
ph->p_vaddr = interp->sh_addr - len;
ph->p_paddr = ph->p_vaddr;
ph->p_filesz = ph->p_memsz = len;
ph->p_flags = PF_R | PF_X;
ph->p_align = 4; // interp->sh_addralign;
ph++;
}
#endif
ph->p_type = PT_INTERP;
ph->p_offset = interp->sh_offset;
ph->p_vaddr = interp->sh_addr;
ph->p_paddr = ph->p_vaddr;
ph->p_filesz = interp->sh_size;
ph->p_memsz = interp->sh_size;
ph->p_flags = PF_R;
ph->p_align = interp->sh_addralign;
}
/* if dynamic section, then add corresponing program header */
if (dynamic) {
ElfW(Sym) *sym_end;
ph = &phdr[phnum - 1];
ph->p_type = PT_DYNAMIC;
ph->p_offset = dynamic->sh_offset;
ph->p_vaddr = dynamic->sh_addr;
ph->p_paddr = ph->p_vaddr;
ph->p_filesz = dynamic->sh_size;
ph->p_memsz = dynamic->sh_size;
ph->p_flags = PF_R | PF_W;
ph->p_align = dynamic->sh_addralign;
/* put GOT dynamic section address */
put32(s1->got->data, dynamic->sh_addr);
/* relocate the PLT */
if (file_type == TCC_OUTPUT_EXE
#if defined(TCC_OUTPUT_DLL_WITH_PLT)
|| file_type == TCC_OUTPUT_DLL
#endif
src/tccelf.c view on Meta::CPAN
}
ehdr.e_phentsize = sizeof(ElfW(Phdr));
ehdr.e_phnum = phnum;
ehdr.e_phoff = sizeof(ElfW(Ehdr));
}
/* all other sections come after */
for(i = 1; i < s1->nb_sections; i++) {
s = s1->sections[i];
if (phnum > 0 && (s->sh_flags & SHF_ALLOC))
continue;
section_order[sh_order_index++] = i;
file_offset = (file_offset + s->sh_addralign - 1) &
~(s->sh_addralign - 1);
s->sh_offset = file_offset;
if (s->sh_type != SHT_NOBITS)
file_offset += s->sh_size;
}
src/tccelf.c view on Meta::CPAN
for(i = 1; i < s1->nb_sections; i++) {
s = s1->sections[i];
if (s->reloc && s != s1->got)
relocate_section(s1, s);
}
/* relocate relocation entries if the relocation tables are
allocated in the executable */
for(i = 1; i < s1->nb_sections; i++) {
s = s1->sections[i];
if ((s->sh_flags & SHF_ALLOC) &&
s->sh_type == SHT_RELX) {
relocate_rel(s1, s);
}
}
/* get entry point address */
if (file_type == TCC_OUTPUT_EXE)
ehdr.e_entry = get_elf_sym_addr(s1, "_start", 1);
else
ehdr.e_entry = text_section->sh_addr; /* XXX: is it correct ? */
src/tccelf.c view on Meta::CPAN
ehdr.e_ident[3] = ELFMAG3;
ehdr.e_ident[4] = ELFCLASSW;
ehdr.e_ident[5] = ELFDATA2LSB;
ehdr.e_ident[6] = EV_CURRENT;
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
ehdr.e_ident[EI_OSABI] = ELFOSABI_FREEBSD;
#endif
#ifdef TCC_TARGET_ARM
#ifdef TCC_ARM_EABI
ehdr.e_ident[EI_OSABI] = 0;
ehdr.e_flags = 4 << 24;
#else
ehdr.e_ident[EI_OSABI] = ELFOSABI_ARM;
#endif
#endif
switch(file_type) {
default:
case TCC_OUTPUT_EXE:
ehdr.e_type = ET_EXEC;
break;
case TCC_OUTPUT_DLL:
src/tccelf.c view on Meta::CPAN
offset++;
}
for(i=0;i<s1->nb_sections;i++) {
sh = &shdr;
memset(sh, 0, sizeof(ElfW(Shdr)));
s = s1->sections[i];
if (s) {
sh->sh_name = s->sh_name;
sh->sh_type = s->sh_type;
sh->sh_flags = s->sh_flags;
sh->sh_entsize = s->sh_entsize;
sh->sh_info = s->sh_info;
if (s->link)
sh->sh_link = s->link->sh_num;
sh->sh_addralign = s->sh_addralign;
sh->sh_addr = s->sh_addr;
sh->sh_offset = s->sh_offset;
sh->sh_size = s->sh_size;
}
fwrite(sh, 1, sizeof(ElfW(Shdr)), f);
src/tccelf.c view on Meta::CPAN
symbols can still be defined in
it. */
sm_table[i].link_once = 1;
goto next;
} else {
goto found;
}
}
}
/* not found: create new section */
s = new_section(s1, sh_name, sh->sh_type, sh->sh_flags);
/* take as much info as possible from the section. sh_link and
sh_info will be updated later */
s->sh_addralign = sh->sh_addralign;
s->sh_entsize = sh->sh_entsize;
sm_table[i].new_section = 1;
found:
if (sh->sh_type != s->sh_type) {
tcc_error_noabort("invalid section type");
goto fail;
}
src/tccgen.c view on Meta::CPAN
ST_DATA Sym *global_stack;
ST_DATA Sym *local_stack;
ST_DATA Sym *scope_stack_bottom;
ST_DATA Sym *define_stack;
ST_DATA Sym *global_label_stack;
ST_DATA Sym *local_label_stack;
ST_DATA int vla_sp_loc_tmp; /* vla_sp_loc is set to this when the value won't be needed later */
ST_DATA int vla_sp_root_loc; /* vla_sp_loc for SP before any VLAs were pushed */
ST_DATA int *vla_sp_loc; /* Pointer to variable holding location to store stack pointer on the stack when modifying stack pointer */
ST_DATA int vla_flags; /* VLA_* flags */
ST_DATA SValue __vstack[1+VSTACK_SIZE], *vtop;
ST_DATA int const_wanted; /* true if constant wanted */
ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */
ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */
ST_DATA CType func_vt; /* current function return type (used by return instruction) */
ST_DATA int func_vc;
ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */
ST_DATA char *funcname;
src/tccgen.c view on Meta::CPAN
*p = *q;
*q = t;
}
static void vsetc(CType *type, int r, CValue *vc)
{
int v;
if (vtop >= vstack + (VSTACK_SIZE - 1))
tcc_error("memory full");
/* cannot let cpu flags if other instruction are generated. Also
avoid leaving VT_JMP anywhere except on the top of the stack
because it would complicate the code generator. */
if (vtop >= vstack) {
v = vtop->r & VT_VALMASK;
if (v == VT_CMP || (v & ~1) == VT_JMP)
gv(RC_INT);
}
vtop++;
vtop->type = *type;
vtop->r = r;
src/tccgen.c view on Meta::CPAN
{
CType type;
type.t = VT_INT;
type.ref = 0;
vset(&type, r, v);
}
ST_FUNC void vswap(void)
{
SValue tmp;
/* cannot let cpu flags if other instruction are generated. Also
avoid leaving VT_JMP anywhere except on the top of the stack
because it would complicate the code generator. */
if (vtop >= vstack) {
int v = vtop->r & VT_VALMASK;
if (v == VT_CMP || (v & ~1) == VT_JMP)
gv(RC_INT);
}
tmp = vtop[0];
vtop[0] = vtop[-1];
vtop[-1] = tmp;
src/tccgen.c view on Meta::CPAN
if ((type->t & VT_BTYPE) == VT_LLONG) {
sv.c.ul += 4;
store(p->r2, &sv);
}
#endif
l = loc;
saved = 1;
}
/* mark that stack entry as being saved on the stack */
if (p->r & VT_LVAL) {
/* also clear the bounded flag because the
relocation address of the function was stored in
p->c.ul */
p->r = (p->r & ~(VT_VALMASK | VT_BOUNDED)) | VT_LLOCAL;
} else {
p->r = lvalue_type(p->type.t) | VT_LOCAL;
}
p->r2 = VT_CONST;
p->c.ul = l;
}
}
src/tccgen.c view on Meta::CPAN
ST_FUNC void vla_runtime_type_size(CType *type, int *a)
{
if (type->t & VT_VLA) {
vset(&int_type, VT_LOCAL|VT_LVAL, type->ref->c);
} else {
vpushi(type_size(type, a));
}
}
static void vla_sp_save(void) {
if (!(vla_flags & VLA_SP_LOC_SET)) {
*vla_sp_loc = (loc -= PTR_SIZE);
vla_flags |= VLA_SP_LOC_SET;
}
if (!(vla_flags & VLA_SP_SAVED)) {
gen_vla_sp_save(*vla_sp_loc);
vla_flags |= VLA_SP_SAVED;
}
}
/* return the pointed type of t */
static inline CType *pointed_type(CType *type)
{
return &type->ref->type;
}
/* modify type so that its it is a pointer to type. */
src/tccgen.c view on Meta::CPAN
gexpr();
skip(')');
a = gtst(1, 0);
b = 0;
block(&a, &b, case_sym, def_sym, case_reg, 0);
gjmp_addr(d);
gsym(a);
gsym_addr(b, d);
} else if (tok == '{') {
Sym *llabel;
int block_vla_sp_loc, *saved_vla_sp_loc, saved_vla_flags;
next();
/* record local declaration stack position */
s = local_stack;
frame_bottom = sym_push2(&local_stack, SYM_FIELD, 0, 0);
frame_bottom->next = scope_stack_bottom;
scope_stack_bottom = frame_bottom;
llabel = local_label_stack;
/* save VLA state */
block_vla_sp_loc = *(saved_vla_sp_loc = vla_sp_loc);
if (saved_vla_sp_loc != &vla_sp_root_loc)
vla_sp_loc = &block_vla_sp_loc;
saved_vla_flags = vla_flags;
vla_flags |= VLA_NEED_NEW_FRAME;
/* handle local labels declarations */
if (tok == TOK_LABEL) {
next();
for(;;) {
if (tok < TOK_UIDENT)
expect("label identifier");
label_push(&local_label_stack, tok, LABEL_DECLARED);
next();
if (tok == ',') {
src/tccgen.c view on Meta::CPAN
scope_stack_bottom = scope_stack_bottom->next;
sym_pop(&local_stack, s);
/* Pop VLA frames and restore stack pointer if required */
if (saved_vla_sp_loc != &vla_sp_root_loc)
*saved_vla_sp_loc = block_vla_sp_loc;
if (vla_sp_loc != (saved_vla_sp_loc == &vla_sp_root_loc ? &vla_sp_root_loc : &block_vla_sp_loc)) {
vla_sp_loc = saved_vla_sp_loc;
gen_vla_sp_restore(*vla_sp_loc);
}
vla_flags = (vla_flags & ~VLA_SCOPE_FLAGS) | (saved_vla_flags & VLA_SCOPE_FLAGS);
next();
} else if (tok == TOK_RETURN) {
next();
if (tok != ';') {
gexpr();
gen_assign_cast(&func_vt);
if ((func_vt.t & VT_BTYPE) == VT_STRUCT) {
CType type, ret_type;
int ret_align;
src/tccgen.c view on Meta::CPAN
} else if (tok >= TOK_UIDENT) {
s = label_find(tok);
/* put forward definition if needed */
if (!s) {
s = label_push(&global_label_stack, tok, LABEL_FORWARD);
} else {
if (s->r == LABEL_DECLARED)
s->r = LABEL_FORWARD;
}
/* label already defined */
if (vla_flags & VLA_IN_SCOPE) {
/* If VLAs are in use, save the current stack pointer and
reset the stack pointer to what it was at function entry
(label will restore stack pointer in inner scopes) */
vla_sp_save();
gen_vla_sp_restore(vla_sp_root_loc);
}
if (s->r & LABEL_FORWARD)
s->jnext = gjmp(s->jnext);
else
gjmp_addr(s->jnext);
src/tccgen.c view on Meta::CPAN
} else {
expect("label identifier");
}
skip(';');
} else if (tok == TOK_ASM1 || tok == TOK_ASM2 || tok == TOK_ASM3) {
asm_instr();
} else {
b = is_label();
if (b) {
/* label case */
if (vla_flags & VLA_IN_SCOPE) {
/* save/restore stack pointer across label
this is a no-op when combined with the load immediately
after the label unless we arrive via goto */
vla_sp_save();
}
s = label_find(b);
if (s) {
if (s->r == LABEL_DEFINED)
tcc_error("duplicate label '%s'", get_tok_str(s->v, NULL));
gsym(s->jnext);
s->r = LABEL_DEFINED;
} else {
s = label_push(&global_label_stack, b, LABEL_DEFINED);
}
s->jnext = ind;
if (vla_flags & VLA_IN_SCOPE) {
gen_vla_sp_restore(*vla_sp_loc);
vla_flags |= VLA_NEED_NEW_FRAME;
}
/* we accept this, but it is a mistake */
block_after_label:
if (tok == '}') {
tcc_warning("deprecated use of label at end of compound statement");
} else {
if (is_expr)
vpop();
block(bsym, csym, case_sym, def_sym, case_reg, is_expr);
}
src/tccgen.c view on Meta::CPAN
{
int index, array_length, n, no_oblock, nb, parlevel, parlevel1, i;
int size1, align1, expr_type;
Sym *s, *f;
CType *t1;
if (type->t & VT_VLA) {
int a;
/* save current stack pointer */
if (vla_flags & VLA_NEED_NEW_FRAME) {
vla_sp_save();
vla_flags = VLA_IN_SCOPE;
vla_sp_loc = &vla_sp_loc_tmp;
}
vla_runtime_type_size(type, &a);
gen_vla_alloc(type, a);
vset(type, VT_LOCAL|VT_LVAL, c);
vswap();
vstore();
vpop();
} else if (type->t & VT_ARRAY) {
src/tccgen.c view on Meta::CPAN
{
int saved_nocode_wanted = nocode_wanted;
nocode_wanted = 0;
ind = cur_text_section->data_offset;
/* NOTE: we patch the symbol size later */
put_extern_sym(sym, cur_text_section, ind, 0);
funcname = get_tok_str(sym->v, NULL);
func_ind = ind;
/* Initialize VLA state */
vla_sp_loc = &vla_sp_root_loc;
vla_flags = VLA_NEED_NEW_FRAME;
/* put debug symbol */
if (tcc_state->do_debug)
put_func_debug(sym);
/* push a dummy symbol to enable local sym storage */
sym_push2(&local_stack, SYM_FIELD, 0, 0);
gfunc_prolog(&sym->type);
rsym = 0;
block(NULL, NULL, NULL, NULL, 0, 0);
gsym(rsym);
gfunc_epilog();
src/tcclib.h view on Meta::CPAN
void *memcpy(void *dest, const void *src, size_t n);
void *memmove(void *dest, const void *src, size_t n);
void *memset(void *s, int c, size_t n);
char *strdup(const char *s);
/* dlfcn.h */
#define RTLD_LAZY 0x001
#define RTLD_NOW 0x002
#define RTLD_GLOBAL 0x100
void *dlopen(const char *filename, int flag);
const char *dlerror(void);
void *dlsym(void *handle, char *symbol);
int dlclose(void *handle);
#endif /* _TCCLIB_H */
src/tccpe.c view on Meta::CPAN
sec_bss ,
sec_idata ,
sec_pdata ,
sec_other ,
sec_rsrc ,
sec_stab ,
sec_reloc ,
sec_last
};
static const DWORD pe_sec_flags[] = {
0x60000020, /* ".text" , */
0xC0000040, /* ".data" , */
0xC0000080, /* ".bss" , */
0x40000040, /* ".idata" , */
0x40000040, /* ".pdata" , */
0xE0000060, /* < other > , */
0x40000040, /* ".rsrc" , */
0x42000802, /* ".stab" , */
0x42000040, /* ".reloc" , */
};
struct section_info {
int cls, ord;
char name[32];
DWORD sh_addr;
DWORD sh_size;
DWORD sh_flags;
unsigned char *data;
DWORD data_size;
IMAGE_SECTION_HEADER ish;
};
struct import_symbol {
int sym_index;
int iat_index;
int thk_offset;
};
src/tccpe.c view on Meta::CPAN
pe->iat_offs + addr, pe->iat_size);
}
if (pe->exp_size) {
pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_EXPORT,
pe->exp_offs + addr, pe->exp_size);
}
}
strncpy((char*)psh->Name, sh_name, sizeof psh->Name);
psh->Characteristics = pe_sec_flags[si->cls];
psh->VirtualAddress = addr;
psh->Misc.VirtualSize = size;
pe_header.opthdr.SizeOfImage =
umax(pe_virtual_align(pe, size + addr), pe_header.opthdr.SizeOfImage);
if (si->data_size) {
psh->PointerToRawData = file_offset;
file_offset = pe_file_align(pe, file_offset + si->data_size);
psh->SizeOfRawData = file_offset - psh->PointerToRawData;
}
src/tccpe.c view on Meta::CPAN
}
if (rel >= rel_end)
break;
}
}
/* ------------------------------------------------------------- */
static int pe_section_class(Section *s)
{
int type, flags;
const char *name;
type = s->sh_type;
flags = s->sh_flags;
name = s->name;
if (flags & SHF_ALLOC) {
if (type == SHT_PROGBITS) {
if (flags & SHF_EXECINSTR)
return sec_text;
if (flags & SHF_WRITE)
return sec_data;
if (0 == strcmp(name, ".rsrc"))
return sec_rsrc;
if (0 == strcmp(name, ".iedat"))
return sec_idata;
if (0 == strcmp(name, ".pdata"))
return sec_pdata;
return sec_other;
} else if (type == SHT_NOBITS) {
if (flags & SHF_WRITE)
return sec_bss;
}
} else {
if (0 == strcmp(name, ".reloc"))
return sec_reloc;
if (0 == strncmp(name, ".stab", 5)) /* .stab and .stabstr */
return sec_stab;
}
return -1;
}
src/tccpe.c view on Meta::CPAN
continue;
}
#endif
if (c == sec_stab && 0 == pe->s1->do_debug)
continue;
strcpy(si->name, s->name);
si->cls = c;
si->ord = k;
si->sh_addr = s->sh_addr = addr = pe_virtual_align(pe, addr);
si->sh_flags = s->sh_flags;
if (c == sec_data && NULL == pe->thunk)
pe->thunk = s;
if (s == pe->thunk) {
pe_build_imports(pe);
pe_build_exports(pe);
}
if (c == sec_reloc)
src/tccpe.c view on Meta::CPAN
si->sh_size = s->data_offset;
++pe->sec_count;
}
// printf("%08x %05x %s\n", si->sh_addr, si->sh_size, si->name);
}
#if 0
for (i = 1; i < pe->s1->nb_sections; ++i) {
Section *s = pe->s1->sections[i];
int type = s->sh_type;
int flags = s->sh_flags;
printf("section %-16s %-10s %5x %s,%s,%s\n",
s->name,
type == SHT_PROGBITS ? "progbits" :
type == SHT_NOBITS ? "nobits" :
type == SHT_SYMTAB ? "symtab" :
type == SHT_STRTAB ? "strtab" :
type == SHT_RELX ? "rel" : "???",
s->data_offset,
flags & SHF_ALLOC ? "alloc" : "",
flags & SHF_WRITE ? "write" : "",
flags & SHF_EXECINSTR ? "exec" : ""
);
}
pe->s1->verbose = 2;
#endif
tcc_free(section_order);
return 0;
}
/* ------------------------------------------------------------- */
src/tccpp.c view on Meta::CPAN
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "tcc.h"
/********************************************************/
/* global variables */
ST_DATA int tok_flags;
/* additional informations about token */
#define TOK_FLAG_BOL 0x0001 /* beginning of line before */
#define TOK_FLAG_BOF 0x0002 /* beginning of file before */
#define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */
#define TOK_FLAG_EOF 0x0008 /* end of file */
ST_DATA int parse_flags;
#define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */
#define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */
#define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a
token. line feed is also
returned at eof */
#define PARSE_FLAG_ASM_COMMENTS 0x0008 /* '#' can be used for line comment */
#define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */
ST_DATA struct BufferedFile *file;
ST_DATA int ch, tok;
src/tccpp.c view on Meta::CPAN
/* label lookup */
ST_FUNC Sym *label_find(int v)
{
v -= TOK_IDENT;
if ((unsigned)v >= (unsigned)(tok_ident - TOK_IDENT))
return NULL;
return table_ident[v]->sym_label;
}
ST_FUNC Sym *label_push(Sym **ptop, int v, int flags)
{
Sym *s, **ps;
s = sym_push2(ptop, v, 0, 0);
s->r = flags;
ps = &table_ident[v - TOK_IDENT]->sym_label;
if (ptop == &global_label_stack) {
/* modify the top most local identifier, so that
sym_identifier will point to 's' when popped */
while (*ps != NULL)
ps = &(*ps)->prev_tok;
}
s->prev_tok = *ps;
*ps = s;
return s;
src/tccpp.c view on Meta::CPAN
*s1->pack_stack_ptr = val;
skip(')');
}
}
}
/* is_bof is true if first non space token at beginning of file */
ST_FUNC void preprocess(int is_bof)
{
TCCState *s1 = tcc_state;
int i, c, n, saved_parse_flags;
char buf[1024], *q;
Sym *s;
saved_parse_flags = parse_flags;
parse_flags = PARSE_FLAG_PREPROCESS | PARSE_FLAG_TOK_NUM |
PARSE_FLAG_LINEFEED;
next_nomacro();
redo:
switch(tok) {
case TOK_DEFINE:
next_nomacro();
parse_define();
break;
case TOK_UNDEF:
next_nomacro();
src/tccpp.c view on Meta::CPAN
printf("%s: including %s\n", file->prev->filename, file->filename);
#endif
/* update target deps */
dynarray_add((void ***)&s1->target_deps, &s1->nb_target_deps,
tcc_strdup(buf1));
/* push current file in stack */
++s1->include_stack_ptr;
/* add include file debug info */
if (s1->do_debug)
put_stabs(file->filename, N_BINCL, 0, 0, 0);
tok_flags |= TOK_FLAG_BOF | TOK_FLAG_BOL;
ch = file->buf_ptr[0];
goto the_end;
}
tcc_error("include file '%s' not found", buf);
include_done:
break;
case TOK_IFNDEF:
c = 1;
goto do_ifdef;
case TOK_IF:
src/tccpp.c view on Meta::CPAN
/* '#ifndef macro' was at the start of file. Now we check if
an '#endif' is exactly at the end of file */
if (file->ifndef_macro &&
s1->ifdef_stack_ptr == file->ifdef_stack_ptr) {
file->ifndef_macro_saved = file->ifndef_macro;
/* need to set to zero to avoid false matches if another
#ifndef at middle of file */
file->ifndef_macro = 0;
while (tok != TOK_LINEFEED)
next_nomacro();
tok_flags |= TOK_FLAG_ENDIF;
goto the_end;
}
break;
case TOK_LINE:
next();
if (tok != TOK_CINT)
tcc_error("#line");
file->line_num = tokc.i - 1; /* the line number will be incremented after */
next();
if (tok != TOK_LINEFEED) {
src/tccpp.c view on Meta::CPAN
tcc_warning("#warning %s", buf);
break;
case TOK_PRAGMA:
pragma_parse(s1);
break;
default:
if (tok == TOK_LINEFEED || tok == '!' || tok == TOK_PPNUM) {
/* '!' is ignored to allow C scripts. numbers are ignored
to emulate cpp behaviour */
} else {
if (!(saved_parse_flags & PARSE_FLAG_ASM_COMMENTS))
tcc_warning("Ignoring unknown preprocessing directive #%s", get_tok_str(tok, &tokc));
else {
/* this is a gas line comment in an 'S' file. */
file->buf_ptr = parse_line_comment(file->buf_ptr);
goto the_end;
}
}
break;
}
/* ignore other preprocess commands or #! for C scripts */
while (tok != TOK_LINEFEED)
next_nomacro();
the_end:
parse_flags = saved_parse_flags;
}
/* evaluate escape codes in a string. */
static void parse_escape_string(CString *outstr, const uint8_t *buf, int is_long)
{
int c, n;
const uint8_t *p;
p = buf;
for(;;) {
src/tccpp.c view on Meta::CPAN
unsigned int h;
p = file->buf_ptr;
redo_no_start:
c = *p;
switch(c) {
case ' ':
case '\t':
tok = c;
p++;
goto keep_tok_flags;
case '\f':
case '\v':
case '\r':
p++;
goto redo_no_start;
case '\\':
/* first look if it is in fact an end of buffer */
if (p >= file->buf_end) {
file->buf_ptr = p;
handle_eob();
src/tccpp.c view on Meta::CPAN
} else {
file->buf_ptr = p;
ch = *p;
handle_stray();
p = file->buf_ptr;
goto redo_no_start;
}
parse_eof:
{
TCCState *s1 = tcc_state;
if ((parse_flags & PARSE_FLAG_LINEFEED)
&& !(tok_flags & TOK_FLAG_EOF)) {
tok_flags |= TOK_FLAG_EOF;
tok = TOK_LINEFEED;
goto keep_tok_flags;
} else if (!(parse_flags & PARSE_FLAG_PREPROCESS)) {
tok = TOK_EOF;
} else if (s1->ifdef_stack_ptr != file->ifdef_stack_ptr) {
tcc_error("missing #endif");
} else if (s1->include_stack_ptr == s1->include_stack) {
/* no include left : end of file. */
tok = TOK_EOF;
} else {
tok_flags &= ~TOK_FLAG_EOF;
/* pop include file */
/* test if previous '#endif' was after a #ifdef at
start of file */
if (tok_flags & TOK_FLAG_ENDIF) {
#ifdef INC_DEBUG
printf("#endif %s\n", get_tok_str(file->ifndef_macro_saved, NULL));
#endif
add_cached_include(s1, file->filename, file->ifndef_macro_saved);
tok_flags &= ~TOK_FLAG_ENDIF;
}
/* add end of include file debug info */
if (tcc_state->do_debug) {
put_stabd(N_EINCL, 0, 0);
}
/* pop include stack */
tcc_close();
s1->include_stack_ptr--;
p = file->buf_ptr;
goto redo_no_start;
}
}
break;
case '\n':
file->line_num++;
tok_flags |= TOK_FLAG_BOL;
p++;
maybe_newline:
if (0 == (parse_flags & PARSE_FLAG_LINEFEED))
goto redo_no_start;
tok = TOK_LINEFEED;
goto keep_tok_flags;
case '#':
/* XXX: simplify */
PEEKC(c, p);
if ((tok_flags & TOK_FLAG_BOL) &&
(parse_flags & PARSE_FLAG_PREPROCESS)) {
file->buf_ptr = p;
preprocess(tok_flags & TOK_FLAG_BOF);
p = file->buf_ptr;
goto maybe_newline;
} else {
if (c == '#') {
p++;
tok = TOK_TWOSHARPS;
} else {
if (parse_flags & PARSE_FLAG_ASM_COMMENTS) {
p = parse_line_comment(p - 1);
goto redo_no_start;
} else {
tok = '#';
}
}
}
break;
case 'a': case 'b': case 'c': case 'd':
src/tccpp.c view on Meta::CPAN
PARSE2('%', '%', '=', TOK_A_MOD)
PARSE2('^', '^', '=', TOK_A_XOR)
/* comments or operator */
case '/':
PEEKC(c, p);
if (c == '*') {
p = parse_comment(p);
/* comments replaced by a blank */
tok = ' ';
goto keep_tok_flags;
} else if (c == '/') {
p = parse_line_comment(p);
tok = ' ';
goto keep_tok_flags;
} else if (c == '=') {
p++;
tok = TOK_A_DIV;
} else {
tok = '/';
}
break;
/* simple tokens */
case '(':
src/tccpp.c view on Meta::CPAN
case '~':
case '$': /* only used in assembler */
case '@': /* dito */
tok = c;
p++;
break;
default:
tcc_error("unrecognized character \\x%02x", c);
break;
}
tok_flags = 0;
keep_tok_flags:
file->buf_ptr = p;
#if defined(PARSE_DEBUG)
printf("token = %s\n", get_tok_str(tok, &tokc));
#endif
}
/* return next token without macro substitution. Can read input from
macro_ptr buffer */
static void next_nomacro_spc(void)
{
src/tccpp.c view on Meta::CPAN
ml.prev = *can_read_stream, *can_read_stream = &ml;
macro_ptr = (int *)ptr;
tok = t;
ret = macro_subst_tok(tok_str, nested_list, s, can_read_stream);
ptr = (int *)macro_ptr;
macro_ptr = ml.p;
if (can_read_stream && *can_read_stream == &ml)
*can_read_stream = ml.prev;
if (ret != 0)
goto no_subst;
if (parse_flags & PARSE_FLAG_SPACES)
force_blank = 1;
} else {
no_subst:
if (force_blank) {
tok_str_add(tok_str, ' ');
spc = 1;
force_blank = 0;
}
if (!check_space(t, &spc))
tok_str_add2(tok_str, t, &cval);
src/tccpp.c view on Meta::CPAN
}
/* return next token with macro substitution */
ST_FUNC void next(void)
{
Sym *nested_list, *s;
TokenString str;
struct macro_level *ml;
redo:
if (parse_flags & PARSE_FLAG_SPACES)
next_nomacro_spc();
else
next_nomacro();
if (!macro_ptr) {
/* if not reading from macro substituted string, then try
to substitute macros */
if (tok >= TOK_IDENT &&
(parse_flags & PARSE_FLAG_PREPROCESS)) {
s = define_find(tok);
if (s) {
/* we have a macro: we try to substitute */
tok_str_new(&str);
nested_list = NULL;
ml = NULL;
if (macro_subst_tok(&str, &nested_list, s, &ml) == 0) {
/* substitution done, NOTE: maybe empty */
tok_str_add(&str, 0);
macro_ptr = str.str;
src/tccpp.c view on Meta::CPAN
}
goto redo;
} else if (tok == TOK_NOSUBST) {
/* discard preprocessor's nosubst markers */
goto redo;
}
}
/* convert preprocessor tokens into C tokens */
if (tok == TOK_PPNUM &&
(parse_flags & PARSE_FLAG_TOK_NUM)) {
parse_number((char *)tokc.cstr->data);
}
}
/* push back current token and set current token to 'last_tok'. Only
identifier case handled for labels. */
ST_INLN void unget_tok(int last_tok)
{
int i, n;
int *q;
src/tccpp.c view on Meta::CPAN
{
Sym *define_start;
BufferedFile *file_ref, **iptr, **iptr_new;
int token_seen, line_ref, d;
const char *s;
preprocess_init(s1);
define_start = define_stack;
ch = file->buf_ptr[0];
tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF;
parse_flags = PARSE_FLAG_ASM_COMMENTS | PARSE_FLAG_PREPROCESS |
PARSE_FLAG_LINEFEED | PARSE_FLAG_SPACES;
token_seen = 0;
line_ref = 0;
file_ref = NULL;
iptr = s1->include_stack_ptr;
for (;;) {
next();
if (tok == TOK_EOF) {
break;
src/tccrun.c view on Meta::CPAN
tcc_add_linker_symbols(s1);
build_got_entries(s1);
#endif
if (s1->nb_errors)
return -1;
}
offset = 0, mem = (addr_t)ptr;
for(i = 1; i < s1->nb_sections; i++) {
s = s1->sections[i];
if (0 == (s->sh_flags & SHF_ALLOC))
continue;
length = s->data_offset;
s->sh_addr = mem ? (mem + offset + 15) & ~15 : 0;
offset = (offset + length + 15) & ~15;
}
offset += 16;
/* relocate symbols */
relocate_syms(s1, 1);
if (s1->nb_errors)
src/tccrun.c view on Meta::CPAN
/* relocate each section */
for(i = 1; i < s1->nb_sections; i++) {
s = s1->sections[i];
if (s->reloc)
relocate_section(s1, s);
}
for(i = 1; i < s1->nb_sections; i++) {
s = s1->sections[i];
if (0 == (s->sh_flags & SHF_ALLOC))
continue;
length = s->data_offset;
// printf("%-12s %08x %04x\n", s->name, s->sh_addr, length);
ptr = (void*)s->sh_addr;
if (NULL == s->data || s->sh_type == SHT_NOBITS)
memset(ptr, 0, length);
else
memcpy(ptr, s->data, length);
/* mark executable sections as executable in memory */
if (s->sh_flags & SHF_EXECINSTR)
set_pages_executable(ptr, length);
}
#ifdef TCC_HAS_RUNTIME_PLTGOT
set_pages_executable(s1->runtime_plt_and_got,
s1->runtime_plt_and_got_offset);
#endif
#ifdef _WIN64
win64_add_function_table(s1);
src/tccrun.c view on Meta::CPAN
#ifndef SA_SIGINFO
# define SA_SIGINFO 0x00000004u
#endif
/* Generate a stack backtrace when a CPU exception occurs. */
static void set_exception_handler(void)
{
struct sigaction sigact;
/* install TCC signal handlers to print debug info on fatal
runtime errors */
sigact.sa_flags = SA_SIGINFO | SA_RESETHAND;
sigact.sa_sigaction = sig_error;
sigemptyset(&sigact.sa_mask);
sigaction(SIGFPE, &sigact, NULL);
sigaction(SIGILL, &sigact, NULL);
sigaction(SIGSEGV, &sigact, NULL);
sigaction(SIGBUS, &sigact, NULL);
sigaction(SIGABRT, &sigact, NULL);
}
/* ------------------------------------------------------------- */
src/tccrun.c view on Meta::CPAN
*paddr = pc;
return 0;
}
#endif /* _WIN32 */
#endif /* CONFIG_TCC_BACKTRACE */
/* ------------------------------------------------------------- */
#ifdef CONFIG_TCC_STATIC
/* dummy function for profiling */
ST_FUNC void *dlopen(const char *filename, int flag)
{
return NULL;
}
ST_FUNC void dlclose(void *p)
{
}
ST_FUNC const char *dlerror(void)
{
src/tests/tests2/46_grep.c view on Meta::CPAN
*
* Runs on the Decus compiler or on vms, On vms, define as:
* grep :== "$disk:[account]grep" (native)
* grep :== "$disk:[account]grep grep" (Decus)
* See below for more information.
*/
#if 0
char *documentation[] = {
"grep searches a file for a given pattern. Execute by",
" grep [flags] regular_expression file_list\n",
"Flags are single characters preceeded by '-':",
" -c Only a count of matching lines is printed",
" -f Print file name for matching lines switch, see below",
" -n Each line is preceeded by its line number",
" -v Only print non-matching lines\n",
"The file_list is a list of files (wildcards are acceptable on RSX modes).",
"\nThe file name is normally printed if there is a file given.",
"The -f flag reverses this action (print name no file, not if more).\n",
0 };
char *patdoc[] = {
"The regular_expression defines the pattern to search for. Upper- and",
"lower-case are always ignored. Blank lines never match. The expression",
"should be quoted to prevent file-name translation.",
"x An ordinary character (not mentioned below) matches that character.",
"'\\' The backslash quotes any character. \"\\$\" matches a dollar-sign.",
"'^' A circumflex at the beginning of an expression matches the",
" beginning of a line.",
src/tests/tests2/46_grep.c view on Meta::CPAN
#define STAR 7
#define PLUS 8
#define MINUS 9
#define ALPHA 10
#define DIGIT 11
#define NALPHA 12
#define PUNCT 13
#define RANGE 14
#define ENDPAT 15
int cflag=0, fflag=0, nflag=0, vflag=0, nfile=0, debug=0;
char *pp, lbuf[LMAX], pbuf[PMAX];
char *cclass();
char *pmatch();
/*** Display a file name *******************************/
void file(char *s)
{
src/tests/tests2/46_grep.c view on Meta::CPAN
/* FILE *fp; // File to process */
/* char *fn; // File name (for -f option) */
{
int lno, count, m;
lno = 0;
count = 0;
while (fgets(lbuf, LMAX, fp)) {
++lno;
m = match();
if ((m && !vflag) || (!m && vflag)) {
++count;
if (!cflag) {
if (fflag && fn) {
file(fn);
fn = 0;
}
if (nflag)
printf("%d\t", lno);
printf("%s\n", lbuf);
}
}
}
if (cflag) {
if (fflag && fn)
file(fn);
printf("%d\n", count);
}
}
/*** Match line (lbuf) with pattern (pbuf) return 1 if match ***/
void match()
{
char *l; /* Line pointer */
src/tests/tests2/46_grep.c view on Meta::CPAN
++p;
while (c = *p++) {
switch(tolower(c)) {
case '?':
help(documentation);
break;
case 'C':
case 'c':
++cflag;
break;
case 'D':
case 'd':
++debug;
break;
case 'F':
case 'f':
++fflag;
break;
case 'n':
case 'N':
++nflag;
break;
case 'v':
case 'V':
++vflag;
break;
default:
usage("Unknown flag");
}
}
argv[i] = 0;
--nfile;
} else if (!gotpattern) {
compile(p);
argv[i] = 0;
++gotpattern;
--nfile;
}
}
if (!gotpattern)
usage("No pattern");
if (nfile == 0)
grep(stdin, 0);
else {
fflag = fflag ^ (nfile > 0);
for (i=1; i < argc; ++i) {
if (p = argv[i]) {
if ((f=fopen(p, "r")) == NULL)
cant(p);
else {
grep(f, p);
fclose(f);
}
}
}
src/texi2pod.pl view on Meta::CPAN
@instack = ();
$shift = "";
%defs = ();
$fnno = 1;
$inf = "";
$ibase = "";
while ($_ = shift) {
if (/^-D(.*)$/) {
if ($1 ne "") {
$flag = $1;
} else {
$flag = shift;
}
$value = "";
($flag, $value) = ($flag =~ /^([^=]+)(?:=(.+))?/);
die "no flag specified for -D\n"
unless $flag ne "";
die "flags may only contain letters, digits, hyphens, dashes and underscores\n"
unless $flag =~ /^[a-zA-Z0-9_-]+$/;
$defs{$flag} = $value;
} elsif (/^-/) {
usage();
} else {
$in = $_, next unless defined $in;
$out = $_, next unless defined $out;
usage();
}
}
if (defined $in) {
src/win32/include/fenv.h view on Meta::CPAN
/**
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the w64 mingw-runtime package.
* No warranty is given; refer to the file DISCLAIMER within this package.
*/
#ifndef _FENV_H_
#define _FENV_H_
#include <_mingw.h>
/* FPU status word exception flags */
#define FE_INVALID 0x01
#define FE_DENORMAL 0x02
#define FE_DIVBYZERO 0x04
#define FE_OVERFLOW 0x08
#define FE_UNDERFLOW 0x10
#define FE_INEXACT 0x20
#define FE_ALL_EXCEPT (FE_INVALID | FE_DENORMAL | FE_DIVBYZERO \
| FE_OVERFLOW | FE_UNDERFLOW | FE_INEXACT)
/* FPU control word rounding flags */
#define FE_TONEAREST 0x0000
#define FE_DOWNWARD 0x0400
#define FE_UPWARD 0x0800
#define FE_TOWARDZERO 0x0c00
/* The MXCSR exception flags are the same as the
FE flags. */
#define __MXCSR_EXCEPT_FLAG_SHIFT 0
/* How much to shift FE status word exception flags
to get MXCSR rounding flags, */
#define __MXCSR_ROUND_FLAG_SHIFT 3
#ifndef RC_INVOKED
/*
For now, support only for the basic abstraction of flags that are
either set or clear. fexcept_t could be structure that holds more
info about the fp environment.
*/
typedef unsigned short fexcept_t;
/* This 32-byte struct represents the entire floating point
environment as stored by fnstenv or fstenv, augmented by
the contents of the MXCSR register, as stored by stmxcsr
(if CPU supports it). */
typedef struct
src/win32/include/fenv.h view on Meta::CPAN
#define FE_DFL_ENV ((const fenv_t *) 0)
#ifdef __cplusplus
extern "C" {
#endif
/*TODO: Some of these could be inlined */
/* 7.6.2 Exception */
extern int __cdecl feclearexcept (int);
extern int __cdecl fegetexceptflag (fexcept_t * flagp, int excepts);
extern int __cdecl feraiseexcept (int excepts );
extern int __cdecl fesetexceptflag (const fexcept_t *, int);
extern int __cdecl fetestexcept (int excepts);
/* 7.6.3 Rounding */
extern int __cdecl fegetround (void);
extern int __cdecl fesetround (int mode);
/* 7.6.4 Environment */
extern int __cdecl fegetenv(fenv_t * envp);
src/win32/include/io.h view on Meta::CPAN
#endif /* _UWIN */
#endif /* Not NO_OLDNAMES */
_CRTIMP errno_t __cdecl _sopen_s(int *_FileHandle,const char *_Filename,int _OpenFlag,int _ShareFlag,int _PermissionMode);
#ifndef __cplusplus
_CRTIMP int __cdecl _open(const char *_Filename,int _OpenFlag,...);
_CRTIMP int __cdecl _sopen(const char *_Filename,int _OpenFlag,int _ShareFlag,...);
#else
extern "C++" _CRTIMP int __cdecl _open(const char *_Filename,int _Openflag,int _PermissionMode = 0);
extern "C++" _CRTIMP int __cdecl _sopen(const char *_Filename,int _Openflag,int _ShareFlag,int _PermissionMode = 0);
#endif
#ifndef _WIO_DEFINED
#define _WIO_DEFINED
_CRTIMP int __cdecl _waccess(const wchar_t *_Filename,int _AccessMode);
_CRTIMP int __cdecl _wchmod(const wchar_t *_Filename,int _Mode);
_CRTIMP int __cdecl _wcreat(const wchar_t *_Filename,int _PermissionMode);
_CRTIMP intptr_t __cdecl _wfindfirst32(const wchar_t *_Filename,struct _wfinddata32_t *_FindData);
_CRTIMP int __cdecl _wfindnext32(intptr_t _FindHandle,struct _wfinddata32_t *_FindData);
_CRTIMP int __cdecl _wunlink(const wchar_t *_Filename);
src/win32/include/malloc.h view on Meta::CPAN
#endif
/* Return codes for _heapwalk() */
#define _HEAPEMPTY (-1)
#define _HEAPOK (-2)
#define _HEAPBADBEGIN (-3)
#define _HEAPBADNODE (-4)
#define _HEAPEND (-5)
#define _HEAPBADPTR (-6)
/* Values for _heapinfo.useflag */
#define _FREEENTRY 0
#define _USEDENTRY 1
#ifndef _HEAPINFO_DEFINED
#define _HEAPINFO_DEFINED
/* The structure used to walk through the heap with _heapwalk. */
typedef struct _heapinfo {
int *_pentry;
size_t _size;
int _useflag;
} _HEAPINFO;
#endif
extern unsigned int _amblksiz;
#define _mm_free(a) _aligned_free(a)
#define _mm_malloc(a,b) _aligned_malloc(a,b)
#ifndef _CRT_ALLOCATION_DEFINED
#define _CRT_ALLOCATION_DEFINED
src/win32/include/stdio.h view on Meta::CPAN
#define _NFILE _NSTREAM_
#define _NSTREAM_ 512
#define _IOB_ENTRIES 20
#define EOF (-1)
#ifndef _FILE_DEFINED
struct _iobuf {
char *_ptr;
int _cnt;
char *_base;
int _flag;
int _file;
int _charbuf;
int _bufsiz;
char *_tmpfname;
};
typedef struct _iobuf FILE;
#define _FILE_DEFINED
#endif
#ifdef _POSIX_
src/win32/include/sys/timeb.h view on Meta::CPAN
#define _TIME_T_DEFINED
#endif
#ifndef _TIMEB_DEFINED
#define _TIMEB_DEFINED
struct __timeb32 {
__time32_t time;
unsigned short millitm;
short timezone;
short dstflag;
};
#ifndef NO_OLDNAMES
struct timeb {
time_t time;
unsigned short millitm;
short timezone;
short dstflag;
};
#endif
#if _INTEGRAL_MAX_BITS >= 64
struct __timeb64 {
__time64_t time;
unsigned short millitm;
short timezone;
short dstflag;
};
#endif
#ifdef _USE_32BIT_TIME_T
#define _timeb __timeb32
//gr #define _ftime _ftime32
#define _ftime32 _ftime
#else
#define _timeb __timeb64
#define _ftime _ftime64
src/win32/include/wchar.h view on Meta::CPAN
#ifndef WEOF
#define WEOF (wint_t)(0xFFFF)
#endif
#ifndef _FILE_DEFINED
struct _iobuf {
char *_ptr;
int _cnt;
char *_base;
int _flag;
int _file;
int _charbuf;
int _bufsiz;
char *_tmpfname;
};
typedef struct _iobuf FILE;
#define _FILE_DEFINED
#endif
#ifndef _STDIO_DEFINED
( run in 0.696 second using v1.01-cache-2.11-cpan-94b05bcf43c )