From 7847c4f29ef547d59e2f46c7bdbf4c7a351efaa9 Mon Sep 17 00:00:00 2001
From: wargio <wargio@libero.it>
Date: Fri, 5 Jan 2024 22:30:35 +0800
Subject: [PATCH] Remove hidden static in rz_analysis_cc_max_arg

---
 librz/analysis/cc.c                    | 33 ++++++++++++--------------
 librz/analysis/d/cc-arm-16.sdb.txt     |  2 ++
 librz/analysis/d/cc-arm-32.sdb.txt     |  3 +++
 librz/analysis/d/cc-arm-64.sdb.txt     |  2 ++
 librz/analysis/d/cc-avr-8.sdb.txt      |  1 +
 librz/analysis/d/cc-hexagon-32.sdb.txt |  2 ++
 librz/analysis/d/cc-m68k-32.sdb.txt    |  1 +
 librz/analysis/d/cc-mips-32.sdb.txt    |  2 ++
 librz/analysis/d/cc-mips-64.sdb.txt    |  2 ++
 librz/analysis/d/cc-ppc-32.sdb.txt     |  1 +
 librz/analysis/d/cc-ppc-64.sdb.txt     |  1 +
 librz/analysis/d/cc-riscv-64.sdb.txt   |  1 +
 librz/analysis/d/cc-sh-32.sdb.txt      |  1 +
 librz/analysis/d/cc-sparc-32.sdb.txt   |  1 +
 librz/analysis/d/cc-spc700-16.sdb.txt  |  1 +
 librz/analysis/d/cc-sysz-64.sdb.txt    |  1 +
 librz/analysis/d/cc-tricore-32.sdb.txt |  2 ++
 librz/analysis/d/cc-x86-16.sdb.txt     |  5 ++++
 librz/analysis/d/cc-x86-32.sdb.txt     |  8 +++++++
 librz/analysis/d/cc-x86-64.sdb.txt     |  4 ++++
 librz/analysis/d/cc-xtensa-32.sdb.txt  |  1 +
 librz/analysis/var.c                   |  8 ++++---
 test/db/cmd/cmd_k                      |  9 +++++++
 test/unit/test_analysis_cc.c           |  2 ++
 test/unit/test_serialize_analysis.c    |  2 ++
 25 files changed, 75 insertions(+), 21 deletions(-)

diff --git a/librz/analysis/cc.c b/librz/analysis/cc.c
index 07dd5a67b43..be0ffc19deb 100644
--- a/librz/analysis/cc.c
+++ b/librz/analysis/cc.c
@@ -25,6 +25,7 @@ RZ_API void rz_analysis_cc_del(RzAnalysis *analysis, const char *name) {
 	rz_return_if_fail(analysis && name);
 	sdb_unset(DB, name, 0);
 	cc_sdb_unsetf(DB, "cc.%s.ret", name);
+	cc_sdb_unsetf(DB, "cc.%s.maxargs", name);
 	cc_sdb_unsetf(DB, "cc.%s.argn", name);
 	for (int i = 0; i < RZ_ANALYSIS_CC_MAXARG; i++) {
 		cc_sdb_unsetf(DB, "cc.%s.arg%d", name, i);
@@ -77,6 +78,11 @@ RZ_API bool rz_analysis_cc_set(RzAnalysis *analysis, const char *expr) {
 			n++;
 		}
 	}
+	if (n > rz_analysis_cc_max_arg(analysis, ccname)) {
+		char maxargs[256];
+		rz_strf(maxargs, "%d", n);
+		cc_sdb_setf(DB, maxargs, "cc.%s.maxargs", ccname);
+	}
 	rz_list_free(ccArgs);
 	free(e);
 	free(args);
@@ -197,27 +203,18 @@ RZ_API void rz_analysis_cc_set_error(RzAnalysis *analysis, const char *conventio
 }
 
 RZ_API int rz_analysis_cc_max_arg(RzAnalysis *analysis, const char *cc) {
-	int i = 0;
 	rz_return_val_if_fail(analysis && DB && cc, 0);
-	static void *oldDB = NULL;
-	static char *oldCC = NULL;
-	static int oldArg = 0;
-	if (oldDB == DB && !strcmp(cc, oldCC)) {
-		return oldArg;
+	char *query = rz_str_newf("cc.%s.maxargs", cc);
+	if (!query) {
+		return 0;
 	}
-	oldDB = DB;
-	free(oldCC);
-	oldCC = strdup(cc);
-	for (i = 0; i < RZ_ANALYSIS_CC_MAXARG; i++) {
-		char *query = rz_str_newf("cc.%s.arg%d", cc, i);
-		const char *res = query ? sdb_const_get(DB, query, 0) : NULL;
-		free(query);
-		if (!res) {
-			break;
-		}
+	const char *res = sdb_const_get(DB, query, 0);
+	free(query);
+	int maxargs = res ? atoi(res) : 0;
+	if (maxargs < 0 || maxargs > RZ_ANALYSIS_CC_MAXARG) {
+		return 0;
 	}
-	oldArg = i;
-	return i;
+	return maxargs;
 }
 
 RZ_API const char *rz_analysis_cc_ret(RzAnalysis *analysis, const char *convention) {
diff --git a/librz/analysis/d/cc-arm-16.sdb.txt b/librz/analysis/d/cc-arm-16.sdb.txt
index 63e16048d7b..6a201fa2f54 100644
--- a/librz/analysis/d/cc-arm-16.sdb.txt
+++ b/librz/analysis/d/cc-arm-16.sdb.txt
@@ -6,6 +6,7 @@ cc.arm16.arg1=r1
 cc.arm16.arg2=r2
 cc.arm16.arg3=r3
 cc.arm16.argn=stack
+cc.arm16.maxargs=4
 cc.arm16.ret=r0
 
 arm32=cc
@@ -13,4 +14,5 @@ cc.arm32.arg0=r0
 cc.arm32.arg1=r1
 cc.arm32.arg2=r2
 cc.arm32.argn=stack
+cc.arm16.maxargs=3
 cc.arm32.ret=r0
diff --git a/librz/analysis/d/cc-arm-32.sdb.txt b/librz/analysis/d/cc-arm-32.sdb.txt
index 0f61af4fb80..62af1c01bb7 100644
--- a/librz/analysis/d/cc-arm-32.sdb.txt
+++ b/librz/analysis/d/cc-arm-32.sdb.txt
@@ -3,6 +3,7 @@ default.cc=arm32
 arm32=cc
 cc.arm32.arg0=r0
 cc.arm32.arg1=r1
+cc.arm32.maxargs=2
 cc.arm32.ret=r0
 
 arm16=cc
@@ -11,6 +12,7 @@ cc.arm16.arg1=r1
 cc.arm16.arg2=r2
 cc.arm16.arg3=r3
 cc.arm16.argn=stack
+cc.arm16.maxargs=4
 cc.arm16.ret=r0
 
 swift=cc
@@ -19,6 +21,7 @@ cc.swift.arg1=r1
 cc.swift.arg2=r2
 cc.swift.arg3=r3
 cc.swift.argn=stack
+cc.swift.maxargs=4
 cc.swift.self=r10
 cc.swift.self=r8
 cc.swift.ret=r0
diff --git a/librz/analysis/d/cc-arm-64.sdb.txt b/librz/analysis/d/cc-arm-64.sdb.txt
index 3cc74135e20..b9f69c84afa 100644
--- a/librz/analysis/d/cc-arm-64.sdb.txt
+++ b/librz/analysis/d/cc-arm-64.sdb.txt
@@ -10,6 +10,7 @@ cc.arm64.arg5=x5
 cc.arm64.arg6=x6
 cc.arm64.arg7=x7
 cc.arm64.argn=stack
+cc.arm64.maxargs=8
 cc.arm64.ret=x0
 
 swift=cc
@@ -22,6 +23,7 @@ cc.swift.arg5=x5
 cc.swift.arg6=x6
 cc.swift.arg7=x7
 cc.swift.argn=stack
+cc.swift.maxargs=8
 cc.swift.self=x20
 cc.swift.error=x21
 cc.swift.ret=x0
diff --git a/librz/analysis/d/cc-avr-8.sdb.txt b/librz/analysis/d/cc-avr-8.sdb.txt
index 263aaaf53d8..9b55fe23fdd 100644
--- a/librz/analysis/d/cc-avr-8.sdb.txt
+++ b/librz/analysis/d/cc-avr-8.sdb.txt
@@ -9,4 +9,5 @@ cc.avr.arg4=r22
 cc.avr.arg5=r21
 cc.avr.arg6=r18
 cc.avr.argn=stack
+cc.avr.maxargs=7
 cc.avr.ret=r24
diff --git a/librz/analysis/d/cc-hexagon-32.sdb.txt b/librz/analysis/d/cc-hexagon-32.sdb.txt
index eba9cb0e7e8..353794bfc13 100644
--- a/librz/analysis/d/cc-hexagon-32.sdb.txt
+++ b/librz/analysis/d/cc-hexagon-32.sdb.txt
@@ -8,6 +8,7 @@ cc.hexagon.arg3=r3
 cc.hexagon.arg4=r4
 cc.hexagon.arg5=r5
 cc.hexagon.argn=stack_rev
+cc.hexagon.maxargs=6
 cc.hexagon.ret=r0
 
 hvx=cc
@@ -28,4 +29,5 @@ cc.hvx.arg12=v12
 cc.hvx.arg13=v13
 cc.hvx.arg14=v14
 cc.hvx.arg15=v15
+cc.hvx.maxargs=16
 cc.hvx.ret=v0
diff --git a/librz/analysis/d/cc-m68k-32.sdb.txt b/librz/analysis/d/cc-m68k-32.sdb.txt
index 637c9ce0f9d..3d31e787f32 100644
--- a/librz/analysis/d/cc-m68k-32.sdb.txt
+++ b/librz/analysis/d/cc-m68k-32.sdb.txt
@@ -2,4 +2,5 @@ default.cc=m68k
 
 m68k=cc
 cc.m68k.arg0=stack_rev
+cc.m68k.maxargs=1
 cc.m68k.ret=d0
diff --git a/librz/analysis/d/cc-mips-32.sdb.txt b/librz/analysis/d/cc-mips-32.sdb.txt
index 31b57d29a3c..72aafdb4b76 100644
--- a/librz/analysis/d/cc-mips-32.sdb.txt
+++ b/librz/analysis/d/cc-mips-32.sdb.txt
@@ -6,6 +6,7 @@ cc.o32.arg1=a1
 cc.o32.arg2=a2
 cc.o32.arg3=a3
 cc.o32.argn=stack
+cc.o32.maxargs=4
 cc.o32.ret=v0
 
 n32=cc
@@ -18,5 +19,6 @@ cc.n32.arg5=a5
 cc.n32.arg6=a6
 cc.n32.arg7=a7
 cc.n32.argn=stack
+cc.n32.maxargs=8
 cc.n32.ret=v0
 
diff --git a/librz/analysis/d/cc-mips-64.sdb.txt b/librz/analysis/d/cc-mips-64.sdb.txt
index 31b57d29a3c..72aafdb4b76 100644
--- a/librz/analysis/d/cc-mips-64.sdb.txt
+++ b/librz/analysis/d/cc-mips-64.sdb.txt
@@ -6,6 +6,7 @@ cc.o32.arg1=a1
 cc.o32.arg2=a2
 cc.o32.arg3=a3
 cc.o32.argn=stack
+cc.o32.maxargs=4
 cc.o32.ret=v0
 
 n32=cc
@@ -18,5 +19,6 @@ cc.n32.arg5=a5
 cc.n32.arg6=a6
 cc.n32.arg7=a7
 cc.n32.argn=stack
+cc.n32.maxargs=8
 cc.n32.ret=v0
 
diff --git a/librz/analysis/d/cc-ppc-32.sdb.txt b/librz/analysis/d/cc-ppc-32.sdb.txt
index f38d6471431..834e9a2b445 100644
--- a/librz/analysis/d/cc-ppc-32.sdb.txt
+++ b/librz/analysis/d/cc-ppc-32.sdb.txt
@@ -10,5 +10,6 @@ cc.ppc-32.arg5=r8
 cc.ppc-32.arg6=r9
 cc.ppc-32.arg7=r10
 cc.ppc-32.argn=stack_rev
+cc.ppc-32.maxargs=8
 cc.ppc-32.ret=r3
 
diff --git a/librz/analysis/d/cc-ppc-64.sdb.txt b/librz/analysis/d/cc-ppc-64.sdb.txt
index acbc6e51bdd..6df7c46f6b8 100644
--- a/librz/analysis/d/cc-ppc-64.sdb.txt
+++ b/librz/analysis/d/cc-ppc-64.sdb.txt
@@ -10,5 +10,6 @@ cc.ppc-64.arg5=r8
 cc.ppc-64.arg6=r9
 cc.ppc-64.arg7=r10
 cc.ppc-64.argn=stack_rev
+cc.ppc-64.maxargs=8
 cc.ppc-64.ret=r3
 
diff --git a/librz/analysis/d/cc-riscv-64.sdb.txt b/librz/analysis/d/cc-riscv-64.sdb.txt
index 22e50b4e193..c594c654f99 100644
--- a/librz/analysis/d/cc-riscv-64.sdb.txt
+++ b/librz/analysis/d/cc-riscv-64.sdb.txt
@@ -9,4 +9,5 @@ cc.rvg.arg4=a4
 cc.rvg.arg5=a5
 cc.rvg.arg6=a6
 cc.rvg.arg7=a7
+cc.rvg.maxargs=8
 cc.rvg.ret=a0
diff --git a/librz/analysis/d/cc-sh-32.sdb.txt b/librz/analysis/d/cc-sh-32.sdb.txt
index e0231bb901e..a7d731fb4a5 100644
--- a/librz/analysis/d/cc-sh-32.sdb.txt
+++ b/librz/analysis/d/cc-sh-32.sdb.txt
@@ -5,4 +5,5 @@ cc.sh4.arg0=r4
 cc.sh4.arg1=r5
 cc.sh4.arg2=r6
 cc.sh4.arg3=r7
+cc.sh4.maxargs=4
 cc.sh4.ret=r0
diff --git a/librz/analysis/d/cc-sparc-32.sdb.txt b/librz/analysis/d/cc-sparc-32.sdb.txt
index 85641f1a72f..1011dc2f633 100644
--- a/librz/analysis/d/cc-sparc-32.sdb.txt
+++ b/librz/analysis/d/cc-sparc-32.sdb.txt
@@ -8,4 +8,5 @@ cc.sparc.arg3=i3
 cc.sparc.arg4=i4
 cc.sparc.arg5=i5
 cc.sparc.argn=stack
+cc.sparc.maxargs=6
 cc.sparc.ret=o0
diff --git a/librz/analysis/d/cc-spc700-16.sdb.txt b/librz/analysis/d/cc-spc700-16.sdb.txt
index 589f4c1e891..8867cb048f7 100644
--- a/librz/analysis/d/cc-spc700-16.sdb.txt
+++ b/librz/analysis/d/cc-spc700-16.sdb.txt
@@ -4,4 +4,5 @@ spc700=cc
 cc.spc700.arg0=a
 cc.spc700.arg1=x
 cc.spc700.arg2=y
+cc.spc700.maxargs=3
 cc.spc700.ret=a
diff --git a/librz/analysis/d/cc-sysz-64.sdb.txt b/librz/analysis/d/cc-sysz-64.sdb.txt
index f9a8fc28bd7..f0ef7889195 100644
--- a/librz/analysis/d/cc-sysz-64.sdb.txt
+++ b/librz/analysis/d/cc-sysz-64.sdb.txt
@@ -6,4 +6,5 @@ cc.sysz.arg1=r3
 cc.sysz.arg2=r4
 cc.sysz.arg3=r5
 cc.sysz.arg4=r6
+cc.sysz.maxargs=5
 cc.sysz.ret=r2
diff --git a/librz/analysis/d/cc-tricore-32.sdb.txt b/librz/analysis/d/cc-tricore-32.sdb.txt
index 6065f61d218..39e0ba27188 100644
--- a/librz/analysis/d/cc-tricore-32.sdb.txt
+++ b/librz/analysis/d/cc-tricore-32.sdb.txt
@@ -10,8 +10,10 @@ cc.reg.arg5=a5
 cc.reg.arg6=a6
 cc.reg.arg7=a7
 cc.reg.argn=stack
+cc.reg.maxargs=8
 cc.reg.ret=d2
 
 stack=cc
 cc.stack.argn=stack
+cc.stack.maxargs=0
 cc.stack.ret=d2
diff --git a/librz/analysis/d/cc-x86-16.sdb.txt b/librz/analysis/d/cc-x86-16.sdb.txt
index 3d5044ec78a..3e761aa97d8 100644
--- a/librz/analysis/d/cc-x86-16.sdb.txt
+++ b/librz/analysis/d/cc-x86-16.sdb.txt
@@ -6,6 +6,7 @@ cc.fastcall.arg1=dx
 cc.fastcall.arg2=bx
 cc.fastcall.arg3=cx
 cc.fastcall.argn=stack
+cc.fastcall.maxargs=4
 cc.fastcall.ret=ax
 
 watcom=cc
@@ -14,6 +15,7 @@ cc.watcom.arg1=dx
 cc.watcom.arg2=bx
 cc.watcom.arg3=cx
 cc.watcom.argn=stack
+cc.watcom.maxargs=4
 cc.watcom.ret=si
 
 turboc=cc
@@ -21,12 +23,14 @@ cc.turboc.arg0=ax
 cc.turboc.arg1=dx
 cc.turboc.arg2=bx
 cc.turboc.argn=stack
+cc.turboc.maxargs=3
 cc.turboc.ret=ax
 
 ms=cc
 cc.ms.arg0=ax
 cc.ms.arg1=dx
 cc.ms.argn=stack
+cc.ms.maxargs=2
 cc.ms.ret=ax
 
 msm=cc
@@ -34,4 +38,5 @@ cc.msm.arg0=ax
 cc.msm.arg1=dx
 cc.msm.arg2=bx
 cc.msm.argn=stack
+cc.msm.maxargs=3
 cc.msm.ret=bx
diff --git a/librz/analysis/d/cc-x86-32.sdb.txt b/librz/analysis/d/cc-x86-32.sdb.txt
index a9d5955020e..d5c8baa0b36 100644
--- a/librz/analysis/d/cc-x86-32.sdb.txt
+++ b/librz/analysis/d/cc-x86-32.sdb.txt
@@ -2,11 +2,13 @@ default.cc=cdecl
 
 cdecl=cc
 cc.cdecl.argn=stack
+cc.cdecl.maxargs=0
 cc.cdecl.ret=eax
 
 cdecl-thiscall-ms=cc
 cc.cdecl-thiscall-ms.arg0=ecx
 cc.cdecl-fastcall-ms.argn=stack
+cc.cdecl-fastcall-ms.maxargs=1
 cc.cdecl-fastcall-ms.ret=eax
 
 optlink=cc
@@ -14,22 +16,26 @@ cc.optlink.arg0=eax
 cc.optlink.arg1=edx
 cc.optlink.arg2=ecx
 cc.optlink.argn=stack
+cc.optlink.maxargs=3
 cc.optlink.ret=eax
 
 stdcall=cc
 cc.stdcall.argn=stack
+cc.stdcall.maxargs=0
 cc.stdcall.ret=eax
 
 fastcall=cc
 cc.fastcall.arg0=ecx
 cc.fastcall.arg1=edx
 cc.fastcall.argn=stack
+cc.fastcall.maxargs=2
 cc.fastcall.ret=eax
 
 borland=cc
 cc.borland.arg0=eax
 cc.borland.arg1=edx
 cc.borland.arg2=ecx
+cc.borland.maxargs=3
 cc.borland.argn=stack_rev
 
 watcom=cc
@@ -38,6 +44,8 @@ cc.watcom.arg1=edx
 cc.watcom.arg2=ebx
 cc.watcom.arg3=ecx
 cc.watcom.argn=stack
+cc.watcom.maxargs=4
 
 pascal=cc
 cc.pascal.argn=stack_rev
+cc.pascal.maxargs=0
diff --git a/librz/analysis/d/cc-x86-64.sdb.txt b/librz/analysis/d/cc-x86-64.sdb.txt
index b8366729cb0..9d2fd5aacf1 100644
--- a/librz/analysis/d/cc-x86-64.sdb.txt
+++ b/librz/analysis/d/cc-x86-64.sdb.txt
@@ -6,6 +6,7 @@ cc.ms.arg1=rdx
 cc.ms.arg2=r8
 cc.ms.arg3=r9
 cc.ms.argn=stack
+cc.ms.maxargs=4
 cc.ms.ret=rax
 
 amd64=cc
@@ -20,6 +21,7 @@ cc.amd64.arg7=xmm1
 cc.amd64.arg8=xmm2
 cc.amd64.arg9=xmm3
 cc.amd64.arg10=xmm4
+cc.amd64.maxargs=11
 cc.amd64.ret=rax
 
 swift=cc
@@ -34,6 +36,7 @@ cc.swift.arg7=xmm1
 cc.swift.arg8=xmm2
 cc.swift.arg9=xmm3
 cc.swift.arg10=xmm4
+cc.swift.maxargs=11
 cc.swift.self=r13
 cc.swift.error=r12
 cc.swift.ret=rax
@@ -45,4 +48,5 @@ cc.amd64syscall.arg2=rdx
 cc.amd64syscall.arg3=r10
 cc.amd64syscall.arg4=r8
 cc.amd64syscall.arg5=r9
+cc.amd64syscall.maxargs=6
 cc.amd64syscall.ret=rax
diff --git a/librz/analysis/d/cc-xtensa-32.sdb.txt b/librz/analysis/d/cc-xtensa-32.sdb.txt
index ff8fed32186..2c17c5e30c0 100644
--- a/librz/analysis/d/cc-xtensa-32.sdb.txt
+++ b/librz/analysis/d/cc-xtensa-32.sdb.txt
@@ -8,4 +8,5 @@ cc.call0.arg3=a5
 cc.call0.arg4=a6
 cc.call0.arg5=a7
 cc.call0.argn=stack
+cc.call0.maxargs=6
 cc.call0.ret=a2
diff --git a/librz/analysis/var.c b/librz/analysis/var.c
index 753c391ca0e..a4770049557 100644
--- a/librz/analysis/var.c
+++ b/librz/analysis/var.c
@@ -779,9 +779,11 @@ RZ_API int rz_analysis_var_get_argnum(RzAnalysisVar *var) {
 	if (!reg) {
 		return -1;
 	}
-	int i;
-	int arg_max = var->fcn->cc ? rz_analysis_cc_max_arg(analysis, var->fcn->cc) : 0;
-	for (i = 0; i < arg_max; i++) {
+	int arg_max = 0;
+	if (RZ_STR_ISNOTEMPTY(var->fcn->cc)) {
+		arg_max = rz_analysis_cc_max_arg(analysis, var->fcn->cc);
+	}
+	for (int i = 0; i < arg_max; i++) {
 		const char *reg_arg = rz_analysis_cc_arg(analysis, var->fcn->cc, i);
 		if (reg_arg && !strcmp(reg->name, reg_arg)) {
 			return i;
diff --git a/test/db/cmd/cmd_k b/test/db/cmd/cmd_k
index 7c451b6a00d..2cf8917a3f6 100644
--- a/test/db/cmd/cmd_k
+++ b/test/db/cmd/cmd_k
@@ -56,33 +56,42 @@ EXPECT=<<EOF
       "cc.borland.arg1=edx",
       "cc.borland.arg2=ecx",
       "cc.borland.argn=stack_rev",
+      "cc.borland.maxargs=3",
       "cc.cdecl-fastcall-ms.argn=stack",
+      "cc.cdecl-fastcall-ms.maxargs=1",
       "cc.cdecl-fastcall-ms.ret=eax",
       "cc.cdecl-thiscall-ms.arg0=ecx",
       "cc.cdecl.argn=stack",
+      "cc.cdecl.maxargs=1",
       "cc.cdecl.ret=eax",
       "cc.fastcall.arg0=ecx",
       "cc.fastcall.arg1=edx",
       "cc.fastcall.argn=stack",
+      "cc.fastcall.maxargs=2",
       "cc.fastcall.ret=eax",
       "cc.optlink.arg0=eax",
       "cc.optlink.arg1=edx",
       "cc.optlink.arg2=ecx",
       "cc.optlink.argn=stack",
+      "cc.optlink.maxargs=3",
       "cc.optlink.ret=eax",
       "cc.pascal.argn=stack_rev",
+      "cc.pascal.maxargs=0",
       "cc.reg.arg0=eax",
       "cc.reg.arg1=ebx",
       "cc.reg.arg2=ecx",
       "cc.reg.arg3=edx",
+      "cc.reg.maxargs=4",
       "cc.reg.ret=eax",
       "cc.stdcall.argn=stack",
+      "cc.stdcall.maxargs=0",
       "cc.stdcall.ret=eax",
       "cc.watcom.arg0=eax",
       "cc.watcom.arg1=edx",
       "cc.watcom.arg2=ebx",
       "cc.watcom.arg3=ecx",
       "cc.watcom.argn=stack",
+      "cc.watcom.maxargs=4",
       "cdecl=cc",
       "cdecl-thiscall-ms=cc",
       "default.cc=cdecl",
diff --git a/test/unit/test_analysis_cc.c b/test/unit/test_analysis_cc.c
index 1cfffd8310d..5f92edc47eb 100644
--- a/test/unit/test_analysis_cc.c
+++ b/test/unit/test_analysis_cc.c
@@ -12,6 +12,7 @@ static Sdb *ref_db() {
 	sdb_set(db, "cc.sectarian.arg1", "rcx", 0);
 	sdb_set(db, "cc.sectarian.arg0", "rdx", 0);
 	sdb_set(db, "cc.sectarian.argn", "stack", 0);
+	sdb_set(db, "cc.sectarian.maxargs", "2", 0);
 	sdb_set(db, "sectarian", "cc", 0);
 	return db;
 }
@@ -24,6 +25,7 @@ static Sdb *ref_db_self_err() {
 	sdb_set(db, "cc.sectarian.arg1", "rcx", 0);
 	sdb_set(db, "cc.sectarian.arg0", "rdx", 0);
 	sdb_set(db, "cc.sectarian.argn", "stack", 0);
+	sdb_set(db, "cc.sectarian.maxargs", "2", 0);
 	sdb_set(db, "sectarian", "cc", 0);
 	return db;
 }
diff --git a/test/unit/test_serialize_analysis.c b/test/unit/test_serialize_analysis.c
index efaa9aa4794..a957ec97af1 100644
--- a/test/unit/test_serialize_analysis.c
+++ b/test/unit/test_serialize_analysis.c
@@ -1266,6 +1266,7 @@ static Sdb *cc_ref_db() {
 	sdb_set(db, "cc.sectarian.arg1", "rcx", 0);
 	sdb_set(db, "cc.sectarian.arg0", "rdx", 0);
 	sdb_set(db, "cc.sectarian.argn", "stack", 0);
+	sdb_set(db, "cc.sectarian.maxargs", "2", 0);
 	sdb_set(db, "sectarian", "cc", 0);
 	return db;
 }
@@ -1352,6 +1353,7 @@ Sdb *analysis_ref_db() {
 	sdb_set(cc, "cc.sectarian.arg1", "rcx", 0);
 	sdb_set(cc, "cc.sectarian.arg0", "rdx", 0);
 	sdb_set(cc, "cc.sectarian.argn", "stack", 0);
+	sdb_set(cc, "cc.sectarian.maxargs", "2", 0);
 	sdb_set(cc, "sectarian", "cc", 0);
 
 	sdb_ns(db, "types", true);