tools/gn: update reference.md doc
This patch was generated by the following command line:
$ gn help --markdown all > tools/gn/docs/reference.md
BUG=None
R=dpranke@chromium.org
Review URL: https://codereview.chromium.org/1500923003
Cr-Original-Commit-Position: refs/heads/master@{#363298}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 0cbfc07f673b7445fa43b2f115f1c79c07a6e1ca
diff --git a/tools/gn/docs/reference.md b/tools/gn/docs/reference.md
index a180d88..97f12f2 100644
--- a/tools/gn/docs/reference.md
+++ b/tools/gn/docs/reference.md
@@ -1431,7 +1431,7 @@
"root_out_dir"
The root of the output file tree for the target. This will
- match the value of the "root_gen_dir" variable when inside that
+ match the value of the "root_out_dir" variable when inside that
target's declaration.
"label_no_toolchain"
@@ -3306,20 +3306,13 @@
```
-## **cflags***: Flags passed to the C compiler.
+## **asmflags**: Flags passed to the assembler.
```
A list of strings.
- "cflags" are passed to all invocations of the C, C++, Objective C,
- and Objective C++ compilers.
-
- To target one of these variants individually, use "cflags_c",
- "cflags_cc", "cflags_objc", and "cflags_objcc",
- respectively.
-
- These variant-specific versions of cflags* will be appended to the
- "cflags".
+ "asmflags" are passed to any invocation of a tool that takes an
+ .asm or .S file as input.
```
@@ -3352,10 +3345,10 @@
To target one of these variants individually, use "cflags_c",
"cflags_cc", "cflags_objc", and "cflags_objcc",
- respectively.
+ respectively. These variant-specific versions of cflags* will be
+ appended on the compiler command line after "cflags".
- These variant-specific versions of cflags* will be appended to the
- "cflags".
+ See also "asmflags" for flags for assembly-language files.
```
@@ -3388,10 +3381,10 @@
To target one of these variants individually, use "cflags_c",
"cflags_cc", "cflags_objc", and "cflags_objcc",
- respectively.
+ respectively. These variant-specific versions of cflags* will be
+ appended on the compiler command line after "cflags".
- These variant-specific versions of cflags* will be appended to the
- "cflags".
+ See also "asmflags" for flags for assembly-language files.
```
@@ -3424,10 +3417,10 @@
To target one of these variants individually, use "cflags_c",
"cflags_cc", "cflags_objc", and "cflags_objcc",
- respectively.
+ respectively. These variant-specific versions of cflags* will be
+ appended on the compiler command line after "cflags".
- These variant-specific versions of cflags* will be appended to the
- "cflags".
+ See also "asmflags" for flags for assembly-language files.
```
@@ -3460,10 +3453,46 @@
To target one of these variants individually, use "cflags_c",
"cflags_cc", "cflags_objc", and "cflags_objcc",
- respectively.
+ respectively. These variant-specific versions of cflags* will be
+ appended on the compiler command line after "cflags".
- These variant-specific versions of cflags* will be appended to the
- "cflags".
+ See also "asmflags" for flags for assembly-language files.
+
+```
+
+### **Ordering of flags and values**
+
+```
+ 1. Those set on the current target (not in a config).
+ 2. Those set on the "configs" on the target in order that the
+ configs appear in the list.
+ 3. Those set on the "all_dependent_configs" on the target in order
+ that the configs appear in the list.
+ 4. Those set on the "public_configs" on the target in order that
+ those configs appear in the list.
+ 5. all_dependent_configs pulled from dependencies, in the order of
+ the "deps" list. This is done recursively. If a config appears
+ more than once, only the first occurance will be used.
+ 6. public_configs pulled from dependencies, in the order of the
+ "deps" list. If a dependency is public, they will be applied
+ recursively.
+
+
+```
+## **cflags***: Flags passed to the C compiler.
+
+```
+ A list of strings.
+
+ "cflags" are passed to all invocations of the C, C++, Objective C,
+ and Objective C++ compilers.
+
+ To target one of these variants individually, use "cflags_c",
+ "cflags_cc", "cflags_objc", and "cflags_objcc",
+ respectively. These variant-specific versions of cflags* will be
+ appended on the compiler command line after "cflags".
+
+ See also "asmflags" for flags for assembly-language files.
```
