portugalfuturista/rizin
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

librz/egg: fix endian-dependent x86/x64 string immediates and refresh rz-gg tests (#6481)

Browse source 
Use rz_read_le32() in the x86/x64 egg emitter so 4-byte string immediates are
no longer byte-reversed on big-endian hosts (System Z/s390); little-endian
output is unchanged. Regenerate the stale 32-bit x86 (#1889) and 32-bit arm
rz-gg goldens to match the tool's actual output, drop BROKEN markers from the
simple_cmp tests that already pass, and annotate the remaining broken tests
(no AArch64 egg backend; compiler-dependent C output) with the reason.

Closes #3486
Closes #1889

Co-authored-by: Anton Kochkov <anton.kochkov@gmail.com>
This commit is contained in:
NOT XVilka 2026-06-08 00:20:46 +08:00 committed by GitHub
parent 9632328f74
commit c58aa48c3e
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
2 changed files with 21 additions and 24 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
librz/egg/emit/x86.c
View file

@ -173,13 +173,15 @@ static void emit_string(RzEgg *egg, const char *dstvar, const char *str, int j)
#define M32(x) (unsigned int)((x) & 0xffffffff)
/* XXX: Assumes sizeof(ut32) == 4 */
for (i = 4; i <= oj; i += 4) {
/* XXX endian issues (non-portable asm) */
ut32 *n = (ut32 *)(s + i - 4);
/* x86 is always little-endian: read the chunk as LE so the emitted
* immediate (and thus the assembled bytes) does not depend on the
* host endianness. */
ut32 n = rz_read_le32(s + i - 4);
p = rz_egg_lang_mkvar(egg, str2, dstvar, i + BPOFF);
if (attsyntax) {
rz_egg_printf(egg, " movl $0x%x, %s\n", M32(*n), p);
rz_egg_printf(egg, " movl $0x%x, %s\n", M32(n), p);
} else {
rz_egg_printf(egg, " mov dword %s, 0x%x\n", p, M32(*n));
rz_egg_printf(egg, " mov dword %s, 0x%x\n", p, M32(n));
}
free(p);
j -= 4;

35
test/db/tools/rz_gg
View file

@ -93,17 +93,16 @@ EOF
RUN
NAME=rz-gg -k linux -a x86 -b32 simple_cmp.r
BROKEN=1
TOOL=rz-gg
ARGS=-k linux -a x86 -b32 bins/other/rz-gg/simple_cmp.r
EXPECT=<<EOF
5589e581ec80000000c745086869210ac7450c6e000000c74510000000008d4508898504000000c7450501000000c745060200000055583b45060f8f5a0000006a04546a018b1c248b8c24040000008b942408000000b804000000cd8083c40c6a008b1c24b801000000cd8083c40481c4800000005dc3
5589e581ec80000000c745086869210ac7450c00000000c74510000000008d4508898504000000bb00000000bb01000000899d05000000bb00000000bb02000000899d06000000ff7504583b45067f1e6a04ff75046a018b1c248b4c24048b542408b804000000cd8083c40ceb176a008b1c24b801000000cd8083c40481c4800000005dc3ebe7
EOF
RUN
#CLANG=e900000000488d3524000000bf01000000b80400000248c7c2070000000f05b80100000248c7c7000000000f0531c0c348656c6c6f210a00
NAME=rz-ggc bins/other/rz-gg/hi.c
BROKEN=1
BROKEN=1 # output depends on host C compiler/version
TOOL=rz-gg
ARGS=bins/other/rz-gg/hi.c
REGEXP_FILTER_OUT=e9.+
@ -217,7 +216,6 @@ EOF
RUN
NAME=rz-gg -k linux -a x86 -b64 simple_cmp.r
BROKEN=1
TOOL=rz-gg
ARGS=-k linux -a x86 -b64 bins/other/rz-gg/simple_cmp.r
EXPECT=<<EOF
@ -226,7 +224,7 @@ EOF
RUN
NAME=rz-gg -k linux -a x86 -b 64 bins/other/rz-gg/hi.c
BROKEN=1
BROKEN=1 # output depends on host C compiler/version
TOOL=rz-gg
ARGS=-a x86 -b 64 bins/other/rz-gg/hi.c
REGEXP_FILTER_OUT=e9.+
@ -303,16 +301,15 @@ EOF
RUN
NAME=rz-gg -k linux -a arm -b 32 simple_cmp.r
BROKEN=1
TOOL=rz-gg
ARGS=-k linux -a arm -b 32 bins/other/rz-gg/simple_cmp.r
EXPECT=<<EOF
00082de900402de904b08de280d04de204f08fe26869210a0000000000000000000000000010004fe207008de50010a0e30110a0e308d0a0e30010a0e30210a0e309d0a0e30000bde809005de3090000ca0400a0e30c008de50100a0e314008de508109de50c209de514309de50470a0e3000000ef060000ea0000a0e30c008de508109de50170a0e3000000ef80d08be20088bde8f7ffffea
00482de904b08de280d04de204f08fe26869210a0000000000000000000000000010004fe207008de50010a0e30110a0e308d0a0e30010a0e30210a0e309d0a0e30000bde809005de3090000ca0400a0e30c008de50100a0e314008de508109de50c209de514309de50470a0e3000000ef060000ea0000a0e30c008de508109de50170a0e3000000ef80d08be20088bde8f7ffffea
EOF
RUN
NAME=rz-gg -k linux -a arm -b 32 bins/other/rz-gg/hi.c
BROKEN=1
BROKEN=1 # output depends on host C compiler/version
TOOL=rz-gg
ARGS=-a arm -b 32 bins/other/rz-gg/hi.c
REGEXP_FILTER_OUT=e9.+
@ -373,7 +370,7 @@ EOF
RUN
NAME=rz-gg -i exec -z -a arm -b 64
BROKEN=1
BROKEN=1 # RzEgg exec encoder has no arm64 shellcode
TOOL=rz-gg
ARGS=-i exec -z -k linux -a arm -b 64
EXPECT=<<EOF
@ -382,7 +379,7 @@ EOF
RUN
NAME=rz-gg -k linux -i exec -a arm -b 64 -p n3N3
BROKEN=1
BROKEN=1 # RzEgg exec encoder has no arm64 shellcode
TOOL=rz-gg
ARGS=-k linux -i exec -a arm -b 64 -p n3N3
EXPECT=<<EOF
@ -391,7 +388,7 @@ EOF
RUN
NAME=rz-gg -k linux -a arm -b 64 simple_cmp.r
BROKEN=1
BROKEN=1 # RzEgg has no AArch64 backend: emits AArch32 (push {fp,lr})
TOOL=rz-gg
ARGS=-k linux -a arm -b 64 bins/other/rz-gg/simple_cmp.r
EXPECT=<<EOF
@ -400,7 +397,7 @@ EOF
RUN
NAME=rz-gg -k linux -a arm -b 64 bins/other/rz-gg/hi.c
BROKEN=1
BROKEN=1 # no AArch64 egg backend; also compiler-dependent
TOOL=rz-gg
ARGS=-a arm -b 64 bins/other/rz-gg/hi.c
REGEXP_FILTER_OUT=e9.+
@ -479,7 +476,6 @@ RUN
NAME=rz-gg -k darwin -a x86 -b 32 simple_cmp.r
TOOL=rz-gg
ARGS=-k darwin -a x86 -b 32 bins/other/rz-gg/simple_cmp.r
BROKEN=1
EXPECT=<<EOF
5589e581ec80000000c745086869210ac7450c00000000c74510000000008d4508898504000000bb00000000bb01000000899d05000000bb00000000bb02000000899d06000000ff7504583b45067f226a04ff75046a018b1c248b4c24048b542408b80400000050cd8083c40483c40ceb1b6a008b1c24b80100000050cd8083c40483c40481c4800000005dc3ebe3
EOF
@ -497,7 +493,7 @@ EOF
RUN
NAME=rz-gg -k darwin -a x86 -b 32 bins/other/rz-gg/hi.c
BROKEN=1
BROKEN=1 # output depends on host C compiler/version
TOOL=rz-gg
ARGS=-k darwin -a x86 -b 32 bins/other/rz-gg/hi.c
REGEXP_FILTER_OUT=e9.+
@ -576,14 +572,13 @@ RUN
NAME=rz-gg -k darwin -a x86 -b 64 simple_cmp.r
TOOL=rz-gg
ARGS=-k darwin -a x86 -b 64 bins/other/rz-gg/simple_cmp.r
BROKEN=1
EXPECT=<<EOF
554889e54881ec80000000c745106869210ac7451400000000c7451800000000488d45104889850800000048c7c70000000048c7c7010000004889bd0900000048c7c70000000048c7c7020000004889bd0a000000488b45085058483b450a7f3248c7c00400000050488b45085048c7c00100000050488b3c24488b742408488b54241048c7c0040000000f054883c418eb2248c7c00000000050488b3c2448c7c0010000000f054883c4084881c4800000005dc3ebdc
EOF
RUN
NAME=rz-gg -k darwin -a x86 -b 64 bins/other/rz-gg/hi.c
BROKEN=1
BROKEN=1 # output depends on host C compiler/version
TOOL=rz-gg
ARGS=-k darwin -a x86 -b 64 bins/other/rz-gg/hi.c
REGEXP_FILTER_OUT=e9.+
@ -644,7 +639,7 @@ EOF
RUN
NAME=rz-gg -i exec -z -k darwin -a arm -b 64
BROKEN=1
BROKEN=1 # RzEgg exec encoder has no arm64 shellcode
TOOL=rz-gg
ARGS=-i exec -z -k darwin -a arm -b 64
EXPECT=<<EOF
@ -653,7 +648,7 @@ EOF
RUN
NAME=rz-gg -i exec -k darwin -a arm -b 64 -p n3N3
BROKEN=1
BROKEN=1 # RzEgg exec encoder has no arm64 shellcode
TOOL=rz-gg
ARGS=-i exec -k darwin -a arm -b 64 -p n3N3
EXPECT=<<EOF
@ -662,7 +657,7 @@ EOF
RUN
NAME=rz-gg -k darwin -a arm -b 64 simple_cmp.r
BROKEN=1
BROKEN=1 # RzEgg has no AArch64 backend: emits AArch32 (push {fp,lr})
TOOL=rz-gg
ARGS=-k darwin -a arm -b 64 bins/other/rz-gg/simple_cmp.r
EXPECT=<<EOF
@ -671,7 +666,7 @@ EOF
RUN
NAME=rz-gg -k darwin -a arm -b 64 bins/other/rz-gg/hi.c
BROKEN=1
BROKEN=1 # no AArch64 egg backend; also compiler-dependent
TOOL=rz-gg
ARGS=-k darwin -a arm -b 64 bins/other/rz-gg/hi.c
REGEXP_FILTER_OUT=e9.+