mirror of
https://github.com/radareorg/radare2.git
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af0a865d9f
- Adds endian aware functions - Removes references to host endian - Uses binary detected endianness else tries LE and restricts by RAsmPlugin - Fixes gdb debugger endianness when debugging BE qemu gdbserver Signed-off-by: Damien Zammit <damien@zamaudio.com>
118 lines
2.5 KiB
C
118 lines
2.5 KiB
C
/* radare - LGPL - Copyright 2015 pancake */
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#include <r_types.h>
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#include <r_util.h>
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#include <r_lib.h>
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#include <r_asm.h>
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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// USE ARM_AS environment variable
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#define ARM32_AS "arm-linux-androideabi-as"
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#define ARM64_AS "aarch64-linux-android-as"
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// toolchains/arm-linux-androideabi-4.8/prebuilt/darwin-arm_64/bin/
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// toolchains/aarch64-linux-android-4.9/prebuilt/darwin-arm_64/bin/
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static int assemble(RAsm *a, RAsmOp *op, const char *buf) {
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const char *bitconfig = "";
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char *ipath, *opath;
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int ifd, ofd;
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char *as = NULL;
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char asm_buf[R_ASM_BUFSIZE];
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int len = 0;
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ifd = r_file_mkstemp ("r_as", &ipath);
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if (ifd == -1)
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return -1;
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ofd = r_file_mkstemp ("r_as", &opath);
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if (ofd == -1) {
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free (ipath);
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return -1;
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}
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as = r_sys_getenv ("ARM_AS");
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if (!as || !*as) {
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free (as);
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if (a->bits == 64) {
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as = strdup (ARM64_AS);
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} else {
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as = strdup (ARM32_AS);
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}
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}
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if (a->bits == 16) {
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bitconfig = ".thumb";
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}
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len = snprintf (asm_buf, sizeof (asm_buf),
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"%s\n" //.org 0x%"PFMT64x"\n"
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".ascii \"BEGINMARK\"\n"
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"%s\n"
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".ascii \"ENDMARK\"\n",
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bitconfig, buf); // a->pc ??
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write (ifd, asm_buf, len);
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close (ifd);
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if (!r_sys_cmdf ("%s %s -o %s", as, ipath, opath)) {
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const ut8 *begin, *end;
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close (ofd);
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ofd = open (opath, O_BINARY|O_RDONLY);
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if (ofd < 0) {
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free (as);
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free (ipath);
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free (opath);
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return -1;
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}
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len = read (ofd, op->buf, R_ASM_BUFSIZE);
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begin = r_mem_mem (op->buf, len, (const ut8*)"BEGINMARK", 9);
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end = r_mem_mem (op->buf, len, (const ut8*)"ENDMARK", 7);
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if (!begin || !end) {
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eprintf ("Cannot find water marks\n");
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len = 0;
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} else {
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len = (int)(size_t)(end-begin-9);
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if (len>0) {
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memcpy (op->buf, begin+9, len);
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} else len = 0;
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}
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} else {
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eprintf ("Error running: %s %s -o %s", as, ipath, opath);
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eprintf ("export PATH=~/NDK/toolchains/arm-linux*/prebuilt/darwin-arm_64/bin\n");
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len = 0;
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}
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close (ofd);
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unlink (ipath);
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unlink (opath);
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free (ipath);
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free (opath);
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free (as);
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op->size = len;
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return len;
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}
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RAsmPlugin r_asm_plugin_arm_as = {
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.name = "arm.as",
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.desc = "as ARM Assembler (use ARM_AS environment)",
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.arch = "arm",
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.license = "LGPL3",
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.bits = 16|32|64,
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.endian = R_SYS_ENDIAN_LITTLE | R_SYS_ENDIAN_BIG,
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.init = NULL,
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.fini = NULL,
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.disassemble = NULL,
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.assemble = &assemble,
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};
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#ifndef CORELIB
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struct r_lib_struct_t radare_plugin = {
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.type = R_LIB_TYPE_ASM,
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.data = &r_asm_plugin_arm_as,
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.version = R2_VERSION
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};
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#endif
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